Merge commit '75644335b907919057960716508477239c26fed4'
[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   --disable-network        disable network support [no]
134   --disable-dct            disable DCT code
135   --disable-dwt            disable DWT code
136   --disable-lsp            disable LSP code
137   --disable-lzo            disable LZO decoder code
138   --disable-mdct           disable MDCT code
139   --disable-rdft           disable RDFT code
140   --disable-fft            disable FFT code
141
142 Hardware accelerators:
143   --enable-dxva2           enable DXVA2 code
144   --enable-vaapi           enable VAAPI code
145   --enable-vda             enable VDA code
146   --enable-vdpau           enable VDPAU code
147
148 Individual component options:
149   --disable-everything     disable all components listed below
150   --disable-encoder=NAME   disable encoder NAME
151   --enable-encoder=NAME    enable encoder NAME
152   --disable-encoders       disable all encoders
153   --disable-decoder=NAME   disable decoder NAME
154   --enable-decoder=NAME    enable decoder NAME
155   --disable-decoders       disable all decoders
156   --disable-hwaccel=NAME   disable hwaccel NAME
157   --enable-hwaccel=NAME    enable hwaccel NAME
158   --disable-hwaccels       disable all hwaccels
159   --disable-muxer=NAME     disable muxer NAME
160   --enable-muxer=NAME      enable muxer NAME
161   --disable-muxers         disable all muxers
162   --disable-demuxer=NAME   disable demuxer NAME
163   --enable-demuxer=NAME    enable demuxer NAME
164   --disable-demuxers       disable all demuxers
165   --enable-parser=NAME     enable parser NAME
166   --disable-parser=NAME    disable parser NAME
167   --disable-parsers        disable all parsers
168   --enable-bsf=NAME        enable bitstream filter NAME
169   --disable-bsf=NAME       disable bitstream filter NAME
170   --disable-bsfs           disable all bitstream filters
171   --enable-protocol=NAME   enable protocol NAME
172   --disable-protocol=NAME  disable protocol NAME
173   --disable-protocols      disable all protocols
174   --enable-indev=NAME      enable input device NAME
175   --disable-indev=NAME     disable input device NAME
176   --disable-indevs         disable input devices
177   --enable-outdev=NAME     enable output device NAME
178   --disable-outdev=NAME    disable output device NAME
179   --disable-outdevs        disable output devices
180   --disable-devices        disable all devices
181   --enable-filter=NAME     enable filter NAME
182   --disable-filter=NAME    disable filter NAME
183   --disable-filters        disable all filters
184
185 External library support:
186   --enable-avisynth        enable reading of AVISynth script files [no]
187   --enable-bzlib           enable bzlib [autodetect]
188   --enable-fontconfig      enable fontconfig
189   --enable-frei0r          enable frei0r video filtering
190   --enable-gnutls          enable gnutls [no]
191   --enable-iconv           enable iconv [autodetect]
192   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
193   --enable-libass          enable libass subtitles rendering [no]
194   --enable-libbluray       enable BluRay reading using libbluray [no]
195   --enable-libcaca         enable textual display using libcaca
196   --enable-libcelt         enable CELT decoding via libcelt [no]
197   --enable-libcdio         enable audio CD grabbing with libcdio
198   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
199                            and libraw1394 [no]
200   --enable-libfaac         enable AAC encoding via libfaac [no]
201   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
202   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
203   --enable-libfreetype     enable libfreetype [no]
204   --enable-libgsm          enable GSM de/encoding via libgsm [no]
205   --enable-libiec61883     enable iec61883 via libiec61883 [no]
206   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
207   --enable-libmodplug      enable ModPlug via libmodplug [no]
208   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
209   --enable-libnut          enable NUT (de)muxing via libnut,
210                            native (de)muxer exists [no]
211   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
212   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
213   --enable-libopencv       enable video filtering via libopencv [no]
214   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
215   --enable-libopus         enable Opus decoding via libopus [no]
216   --enable-libpulse        enable Pulseaudio input via libpulse [no]
217   --enable-librtmp         enable RTMP[E] support via librtmp [no]
218   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
219   --enable-libsoxr         enable Include libsoxr resampling [no]
220   --enable-libspeex        enable Speex de/encoding via libspeex [no]
221   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
222   --enable-libtheora       enable Theora encoding via libtheora [no]
223   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
224   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
225   --enable-libv4l2         enable libv4l2/v4l-utils [no]
226   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
227   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
228   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
229                            native implementation exists [no]
230   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
231   --enable-libx264         enable H.264 encoding via x264 [no]
232   --enable-libxavs         enable AVS encoding via xavs [no]
233   --enable-libxvid         enable Xvid encoding via xvidcore,
234                            native MPEG-4/Xvid encoder exists [no]
235   --enable-openal          enable OpenAL 1.1 capture support [no]
236   --enable-openssl         enable openssl [no]
237   --enable-x11grab         enable X11 grabbing [no]
238   --enable-zlib            enable zlib [autodetect]
239
240 Advanced options (experts only):
241   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
242   --enable-cross-compile   assume a cross-compiler is used
243   --sysroot=PATH           root of cross-build tree
244   --sysinclude=PATH        location of cross-build system headers
245   --target-os=OS           compiler targets OS [$target_os]
246   --target-exec=CMD        command to run executables on target
247   --target-path=DIR        path to view of build directory on target
248   --toolchain=NAME         set tool defaults according to NAME
249   --nm=NM                  use nm tool NM [$nm_default]
250   --ar=AR                  use archive tool AR [$ar_default]
251   --as=AS                  use assembler AS [$as_default]
252   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
253   --cc=CC                  use C compiler CC [$cc_default]
254   --cxx=CXX                use C compiler CXX [$cxx_default]
255   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
256   --ld=LD                  use linker LD [$ld_default]
257   --host-cc=HOSTCC         use host C compiler HOSTCC
258   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
259   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
260   --host-ld=HOSTLD         use host linker HOSTLD
261   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
262   --host-libs=HLIBS        use libs HLIBS when linking for host
263   --host-os=OS             compiler host OS [$target_os]
264   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
265   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
266   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
267   --extra-libs=ELIBS       add ELIBS [$ELIBS]
268   --extra-version=STRING   version string suffix []
269   --optflags=OPTFLAGS      override optimization-related compiler flags
270   --build-suffix=SUFFIX    library name suffix []
271   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
272   --progs-suffix=SUFFIX    program name suffix []
273   --arch=ARCH              select architecture [$arch]
274   --cpu=CPU                select the minimum required CPU (affects
275                            instruction selection, may crash on older CPUs)
276   --enable-pic             build position-independent code
277   --enable-sram            allow use of on-chip SRAM
278   --enable-thumb           compile for Thumb instruction set
279   --disable-symver         disable symbol versioning
280   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
281   --disable-safe-bitstream-reader
282                            disable buffer boundary checking in bitreaders
283                            (faster, but may crash)
284   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
285   --enable-lto             use link-time optimization
286
287 Optimization options (experts only):
288   --disable-asm            disable all assembler optimizations
289   --disable-altivec        disable AltiVec optimizations
290   --disable-amd3dnow       disable 3DNow! optimizations
291   --disable-amd3dnowext    disable 3DNow! extended optimizations
292   --disable-mmx            disable MMX optimizations
293   --disable-mmxext         disable MMXEXT optimizations
294   --disable-sse            disable SSE optimizations
295   --disable-sse2           disable SSE2 optimizations
296   --disable-sse3           disable SSE3 optimizations
297   --disable-ssse3          disable SSSE3 optimizations
298   --disable-sse4           disable SSE4 optimizations
299   --disable-sse42          disable SSE4.2 optimizations
300   --disable-avx            disable AVX optimizations
301   --disable-fma4           disable FMA4 optimizations
302   --disable-armv5te        disable armv5te optimizations
303   --disable-armv6          disable armv6 optimizations
304   --disable-armv6t2        disable armv6t2 optimizations
305   --disable-vfp            disable VFP optimizations
306   --disable-neon           disable NEON optimizations
307   --disable-vis            disable VIS optimizations
308   --disable-inline-asm     disable use of inline assembler
309   --disable-yasm           disable use of yasm assembler
310   --disable-mips32r2       disable MIPS32R2 optimizations
311   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
312   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
313   --disable-mipsfpu        disable floating point MIPS optimizations
314   --disable-fast-unaligned consider unaligned accesses slow
315
316 Developer options (useful when working on FFmpeg itself):
317   --enable-coverage        build with test coverage instrumentation
318   --disable-debug          disable debugging symbols
319   --enable-debug=LEVEL     set the debug level [$debuglevel]
320   --disable-optimizations  disable compiler optimizations
321   --enable-extra-warnings  enable more compiler warnings
322   --disable-stripping      disable stripping of executables and shared libraries
323   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
324                            2 causes a slowdown at runtime.
325   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
326   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
327                            leaks and errors, using the specified valgrind binary.
328                            Cannot be combined with --target-exec
329   --enable-ftrapv          Trap arithmetic overflows
330   --samples=PATH           location of test samples for FATE, if not set use
331                            \$FATE_SAMPLES at make invocation time.
332   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
333                            should be used only for debugging purposes)
334   --enable-random          randomly enable/disable components
335   --disable-random
336   --enable-random=LIST     randomly enable/disable specific components or
337   --disable-random=LIST    component groups. LIST is a comma-separated list
338                            of NAME[:PROB] entries where NAME is a component
339                            (group) and PROB the probability associated with
340                            NAME (default 0.5).
341   --random-seed=VALUE      seed value for --enable/disable-random
342
343 NOTE: Object files are built at the place where configure is launched.
344 EOF
345   exit 0
346 }
347
348 quotes='""'
349
350 log(){
351     echo "$@" >> $logfile
352 }
353
354 log_file(){
355     log BEGIN $1
356     pr -n -t $1 >> $logfile
357     log END $1
358 }
359
360 echolog(){
361     log "$@"
362     echo "$@"
363 }
364
365 warn(){
366     log "WARNING: $*"
367     WARNINGS="${WARNINGS}WARNING: $*\n"
368 }
369
370 die(){
371     echolog "$@"
372     cat <<EOF
373
374 If you think configure made a mistake, make sure you are using the latest
375 version from Git.  If the latest version fails, report the problem to the
376 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
377 EOF
378     if disabled logging; then
379         cat <<EOF
380 Rerun configure with logging enabled (do not use --disable-logging), and
381 include the log this produces with your report.
382 EOF
383     else
384         cat <<EOF
385 Include the log file "$logfile" produced by configure as this will help
386 solving the problem.
387 EOF
388     fi
389     exit 1
390 }
391
392 # Avoid locale weirdness, besides we really just want to translate ASCII.
393 toupper(){
394     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
395 }
396
397 tolower(){
398     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
399 }
400
401 c_escape(){
402     echo "$*" | sed 's/["\\]/\\\0/g'
403 }
404
405 sh_quote(){
406     v=$(echo "$1" | sed "s/'/'\\\\''/g")
407     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
408     echo "$v"
409 }
410
411 cleanws(){
412     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
413 }
414
415 filter(){
416     pat=$1
417     shift
418     for v; do
419         eval "case $v in $pat) echo $v ;; esac"
420     done
421 }
422
423 filter_out(){
424     pat=$1
425     shift
426     for v; do
427         eval "case $v in $pat) ;; *) echo $v ;; esac"
428     done
429 }
430
431 map(){
432     m=$1
433     shift
434     for v; do eval $m; done
435 }
436
437 add_suffix(){
438     suffix=$1
439     shift
440     for v; do echo ${v}${suffix}; done
441 }
442
443 set_all(){
444     value=$1
445     shift
446     for var in $*; do
447         eval $var=$value
448     done
449 }
450
451 set_weak(){
452     value=$1
453     shift
454     for var; do
455         eval : \${$var:=$value}
456     done
457 }
458
459 sanitize_var_name(){
460     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
461 }
462
463 set_safe(){
464     var=$1
465     shift
466     eval $(sanitize_var_name "$var")='$*'
467 }
468
469 get_safe(){
470     eval echo \$$(sanitize_var_name "$1")
471 }
472
473 pushvar(){
474     for var in $*; do
475         eval level=\${${var}_level:=0}
476         eval ${var}_${level}="\$$var"
477         eval ${var}_level=$(($level+1))
478     done
479 }
480
481 popvar(){
482     for var in $*; do
483         eval level=\${${var}_level:-0}
484         test $level = 0 && continue
485         eval level=$(($level-1))
486         eval $var="\${${var}_${level}}"
487         eval ${var}_level=$level
488         eval unset ${var}_${level}
489     done
490 }
491
492 enable(){
493     set_all yes $*
494 }
495
496 disable(){
497     set_all no $*
498 }
499
500 enable_weak(){
501     set_weak yes $*
502 }
503
504 disable_weak(){
505     set_weak no $*
506 }
507
508 enable_safe(){
509     for var; do
510         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
511     done
512 }
513
514 disable_safe(){
515     for var; do
516         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
517     done
518 }
519
520 do_enable_deep(){
521     for var; do
522         enabled $var && continue
523         eval sel="\$${var}_select"
524         eval sgs="\$${var}_suggest"
525         pushvar var sgs
526         enable_deep $sel
527         popvar sgs
528         enable_deep_weak $sgs
529         popvar var
530     done
531 }
532
533 enable_deep(){
534     do_enable_deep $*
535     enable $*
536 }
537
538 enable_deep_weak(){
539     do_enable_deep $*
540     enable_weak $*
541 }
542
543 enabled(){
544     test "${1#!}" = "$1" && op== || op=!=
545     eval test "x\$${1#!}" $op "xyes"
546 }
547
548 disabled(){
549     test "${1#!}" = "$1" && op== || op=!=
550     eval test "x\$${1#!}" $op "xno"
551 }
552
553 enabled_all(){
554     for opt; do
555         enabled $opt || return 1
556     done
557 }
558
559 disabled_all(){
560     for opt; do
561         disabled $opt || return 1
562     done
563 }
564
565 enabled_any(){
566     for opt; do
567         enabled $opt && return 0
568     done
569 }
570
571 disabled_any(){
572     for opt; do
573         disabled $opt && return 0
574     done
575     return 1
576 }
577
578 set_default(){
579     for opt; do
580         eval : \${$opt:=\$${opt}_default}
581     done
582 }
583
584 is_in(){
585     value=$1
586     shift
587     for var in $*; do
588         [ $var = $value ] && return 0
589     done
590     return 1
591 }
592
593 do_check_deps(){
594     for cfg; do
595         cfg="${cfg#!}"
596         enabled ${cfg}_checking && die "Circular dependency for $cfg."
597         disabled ${cfg}_checking && continue
598         enable ${cfg}_checking
599         append allopts $cfg
600
601         eval dep_all="\$${cfg}_deps"
602         eval dep_any="\$${cfg}_deps_any"
603         eval dep_sel="\$${cfg}_select"
604         eval dep_sgs="\$${cfg}_suggest"
605         eval dep_ifa="\$${cfg}_if"
606         eval dep_ifn="\$${cfg}_if_any"
607
608         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
609         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
610         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
611
612         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
613         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
614         enabled_all  $dep_all || disable $cfg
615         enabled_any  $dep_any || disable $cfg
616         disabled_any $dep_sel && disable $cfg
617
618         if enabled $cfg; then
619             enable_deep $dep_sel
620             enable_deep_weak $dep_sgs
621         fi
622
623         disable ${cfg}_checking
624     done
625 }
626
627 check_deps(){
628     unset allopts
629
630     do_check_deps "$@"
631
632     for cfg in $allopts; do
633         enabled $cfg || continue
634         eval dep_extralibs="\$${cfg}_extralibs"
635         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
636     done
637 }
638
639 print_config(){
640     pfx=$1
641     files=$2
642     shift 2
643     map 'eval echo "$v \${$v:-no}"' "$@" |
644     awk "BEGIN { split(\"$files\", files) }
645         {
646             c = \"$pfx\" toupper(\$1);
647             v = \$2;
648             sub(/yes/, 1, v);
649             sub(/no/,  0, v);
650             for (f in files) {
651                 file = files[f];
652                 if (file ~ /\\.h\$/) {
653                     printf(\"#define %s %d\\n\", c, v) >>file;
654                 } else if (file ~ /\\.asm\$/) {
655                     printf(\"%%define %s %d\\n\", c, v) >>file;
656                 } else if (file ~ /\\.mak\$/) {
657                     n = -v ? \"\" : \"!\";
658                     printf(\"%s%s=yes\\n\", n, c) >>file;
659                 }
660             }
661         }"
662 }
663
664 print_enabled(){
665     suf=$1
666     shift
667     for v; do
668         enabled $v && printf "%s\n" ${v%$suf};
669     done
670 }
671
672 append(){
673     var=$1
674     shift
675     eval "$var=\"\$$var $*\""
676 }
677
678 prepend(){
679     var=$1
680     shift
681     eval "$var=\"$* \$$var\""
682 }
683
684 add_cppflags(){
685     append CPPFLAGS "$@"
686 }
687
688 add_cflags(){
689     append CFLAGS $($cflags_filter "$@")
690 }
691
692 add_cxxflags(){
693     append CXXFLAGS $($cflags_filter "$@")
694 }
695
696 add_asflags(){
697     append ASFLAGS $($asflags_filter "$@")
698 }
699
700 add_ldflags(){
701     append LDFLAGS $($ldflags_filter "$@")
702 }
703
704 add_extralibs(){
705     prepend extralibs $($ldflags_filter "$@")
706 }
707
708 add_host_cppflags(){
709     append host_cppflags "$@"
710 }
711
712 add_host_cflags(){
713     append host_cflags $($host_cflags_filter "$@")
714 }
715
716 add_host_ldflags(){
717     append host_ldflags $($host_ldflags_filter "$@")
718 }
719
720 add_compat(){
721     append compat_objs $1
722     shift
723     map 'add_cppflags -D$v' "$@"
724 }
725
726 check_cmd(){
727     log "$@"
728     "$@" >> $logfile 2>&1
729 }
730
731 cc_o(){
732     eval printf '%s\\n' $CC_O
733 }
734
735 cc_e(){
736     eval printf '%s\\n' $CC_E
737 }
738
739 check_cc(){
740     log check_cc "$@"
741     cat > $TMPC
742     log_file $TMPC
743     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
744 }
745
746 check_cxx(){
747     log check_cxx "$@"
748     cat > $TMPCPP
749     log_file $TMPCPP
750     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
751 }
752
753 check_cpp(){
754     log check_cpp "$@"
755     cat > $TMPC
756     log_file $TMPC
757     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
758 }
759
760 as_o(){
761     eval printf '%s\\n' $AS_O
762 }
763
764 check_as(){
765     log check_as "$@"
766     cat > $TMPS
767     log_file $TMPS
768     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
769 }
770
771 check_inline_asm(){
772     log check_inline_asm "$@"
773     name="$1"
774     code="$2"
775     shift 2
776     disable $name
777     check_cc "$@" <<EOF && enable $name
778 void foo(void){ __asm__ volatile($code); }
779 EOF
780 }
781
782 check_insn(){
783     log check_insn "$@"
784     check_inline_asm ${1}_inline "\"$2\""
785     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
786 }
787
788 check_yasm(){
789     log check_yasm "$@"
790     echo "$1" > $TMPS
791     log_file $TMPS
792     shift 1
793     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
794 }
795
796 ld_o(){
797     eval printf '%s\\n' $LD_O
798 }
799
800 check_ld(){
801     log check_ld "$@"
802     type=$1
803     shift 1
804     flags=$(filter_out '-l*|*.so' $@)
805     libs=$(filter '-l*|*.so' $@)
806     check_$type $($cflags_filter $flags) || return
807     flags=$($ldflags_filter $flags)
808     libs=$($ldflags_filter $libs)
809     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
810 }
811
812 check_code(){
813     log check_code "$@"
814     check=$1
815     headers=$2
816     code=$3
817     shift 3
818     {
819         for hdr in $headers; do
820             echo "#include <$hdr>"
821         done
822         echo "int main(void) { $code; return 0; }"
823     } | check_$check "$@"
824 }
825
826 check_cppflags(){
827     log check_cppflags "$@"
828     check_cc "$@" <<EOF && append CPPFLAGS "$@"
829 int x;
830 EOF
831 }
832
833 check_cflags(){
834     log check_cflags "$@"
835     set -- $($cflags_filter "$@")
836     check_cc "$@" <<EOF && append CFLAGS "$@"
837 int x;
838 EOF
839 }
840
841 check_cxxflags(){
842     log check_cxxflags "$@"
843     set -- $($cflags_filter "$@")
844     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
845 int x;
846 EOF
847 }
848
849 test_ldflags(){
850     log test_ldflags "$@"
851     check_ld "cc" "$@" <<EOF
852 int main(void){ return 0; }
853 EOF
854 }
855
856 check_ldflags(){
857     log check_ldflags "$@"
858     test_ldflags "$@" && add_ldflags "$@"
859 }
860
861 check_header(){
862     log check_header "$@"
863     header=$1
864     shift
865     disable_safe $header
866     check_cpp "$@" <<EOF && enable_safe $header
867 #include <$header>
868 int x;
869 EOF
870 }
871
872 check_func(){
873     log check_func "$@"
874     func=$1
875     shift
876     disable $func
877     check_ld "cc" "$@" <<EOF && enable $func
878 extern int $func();
879 int main(void){ $func(); }
880 EOF
881 }
882
883 check_mathfunc(){
884     log check_mathfunc "$@"
885     func=$1
886     narg=$2
887     shift 2
888     test $narg = 2 && args="f, g" || args="f"
889     disable $func
890     check_ld "cc" "$@" <<EOF && enable $func
891 #include <math.h>
892 float foo(float f, float g) { return $func($args); }
893 int main(void){ return (int) foo; }
894 EOF
895 }
896
897 check_func_headers(){
898     log check_func_headers "$@"
899     headers=$1
900     funcs=$2
901     shift 2
902     {
903         for hdr in $headers; do
904             echo "#include <$hdr>"
905         done
906         for func in $funcs; do
907             echo "long check_$func(void) { return (long) $func; }"
908         done
909         echo "int main(void) { return 0; }"
910     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
911 }
912
913 check_class_headers_cpp(){
914     log check_class_headers_cpp "$@"
915     headers=$1
916     classes=$2
917     shift 2
918     {
919         for hdr in $headers; do
920             echo "#include <$hdr>"
921         done
922         echo "int main(void) { "
923         i=1
924         for class in $classes; do
925             echo "$class obj$i;"
926             i=$(expr $i + 1)
927         done
928         echo "return 0; }"
929     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
930 }
931
932 check_cpp_condition(){
933     log check_cpp_condition "$@"
934     header=$1
935     condition=$2
936     shift 2
937     check_cpp "$@" <<EOF
938 #include <$header>
939 #if !($condition)
940 #error "unsatisfied condition: $condition"
941 #endif
942 EOF
943 }
944
945 check_lib(){
946     log check_lib "$@"
947     header="$1"
948     func="$2"
949     shift 2
950     check_header $header && check_func $func "$@" && add_extralibs "$@"
951 }
952
953 check_lib2(){
954     log check_lib2 "$@"
955     headers="$1"
956     funcs="$2"
957     shift 2
958     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
959 }
960
961 check_lib_cpp(){
962     log check_lib_cpp "$@"
963     headers="$1"
964     classes="$2"
965     shift 2
966     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
967 }
968
969 check_pkg_config(){
970     log check_pkg_config "$@"
971     pkg="$1"
972     headers="$2"
973     funcs="$3"
974     shift 3
975     $pkg_config --exists $pkg 2>/dev/null || return
976     pkg_cflags=$($pkg_config --cflags $pkg)
977     pkg_libs=$($pkg_config --libs $pkg)
978     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
979         set_safe ${pkg}_cflags $pkg_cflags   &&
980         set_safe ${pkg}_libs   $pkg_libs
981 }
982
983 check_exec(){
984     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
985 }
986
987 check_exec_crash(){
988     code=$(cat)
989
990     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
991     # are safe but may not be available everywhere.  Thus we use
992     # raise(SIGTERM) instead.  The check is run in a subshell so we
993     # can redirect the "Terminated" message from the shell.  SIGBUS
994     # is not defined by standard C so it is used conditionally.
995
996     (check_exec "$@") >> $logfile 2>&1 <<EOF
997 #include <signal.h>
998 static void sighandler(int sig){
999     raise(SIGTERM);
1000 }
1001 int func(void){
1002     $code
1003 }
1004 int (*func_ptr)(void) = func;
1005 int main(void){
1006     signal(SIGILL, sighandler);
1007     signal(SIGFPE, sighandler);
1008     signal(SIGSEGV, sighandler);
1009 #ifdef SIGBUS
1010     signal(SIGBUS, sighandler);
1011 #endif
1012     return func_ptr();
1013 }
1014 EOF
1015 }
1016
1017 check_type(){
1018     log check_type "$@"
1019     headers=$1
1020     type=$2
1021     shift 2
1022     disable_safe "$type"
1023     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1024 }
1025
1026 check_struct(){
1027     log check_struct "$@"
1028     headers=$1
1029     struct=$2
1030     member=$3
1031     shift 3
1032     disable_safe "${struct}_${member}"
1033     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1034         enable_safe "${struct}_${member}"
1035 }
1036
1037 check_builtin(){
1038     log check_builtin "$@"
1039     name=$1
1040     headers=$2
1041     builtin=$3
1042     shift 3
1043     disable "$name"
1044     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1045 }
1046
1047 require(){
1048     name="$1"
1049     header="$2"
1050     func="$3"
1051     shift 3
1052     check_lib $header $func "$@" || die "ERROR: $name not found"
1053 }
1054
1055 require2(){
1056     name="$1"
1057     headers="$2"
1058     func="$3"
1059     shift 3
1060     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1061 }
1062
1063 require_cpp(){
1064     name="$1"
1065     headers="$2"
1066     classes="$3"
1067     shift 3
1068     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1069 }
1070
1071 require_pkg_config(){
1072     pkg="$1"
1073     check_pkg_config "$@" || die "ERROR: $pkg not found"
1074     add_cflags    $(get_safe ${pkg}_cflags)
1075     add_extralibs $(get_safe ${pkg}_libs)
1076 }
1077
1078 hostcc_o(){
1079     eval printf '%s\\n' $HOSTCC_O
1080 }
1081
1082 check_host_cc(){
1083     log check_host_cc "$@"
1084     cat > $TMPC
1085     log_file $TMPC
1086     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1087 }
1088
1089 check_host_cppflags(){
1090     log check_host_cppflags "$@"
1091     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1092 int x;
1093 EOF
1094 }
1095
1096 check_host_cflags(){
1097     log check_host_cflags "$@"
1098     set -- $($host_cflags_filter "$@")
1099     check_host_cc "$@" <<EOF && append host_cflags "$@"
1100 int x;
1101 EOF
1102 }
1103
1104 apply(){
1105     file=$1
1106     shift
1107     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1108 }
1109
1110 cp_if_changed(){
1111     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1112     mkdir -p "$(dirname $2)"
1113     $cp_f "$1" "$2"
1114 }
1115
1116 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1117 # system-dependent things.
1118
1119 COMPONENT_LIST="
1120     bsfs
1121     decoders
1122     demuxers
1123     encoders
1124     filters
1125     hwaccels
1126     indevs
1127     muxers
1128     outdevs
1129     parsers
1130     protocols
1131 "
1132
1133 EXTERNAL_LIBRARY_LIST="
1134     avisynth
1135     bzlib
1136     crystalhd
1137     fontconfig
1138     frei0r
1139     gnutls
1140     iconv
1141     libaacplus
1142     libass
1143     libbluray
1144     libcaca
1145     libcdio
1146     libcelt
1147     libdc1394
1148     libfaac
1149     libfdk_aac
1150     libflite
1151     libfreetype
1152     libgsm
1153     libiec61883
1154     libilbc
1155     libmodplug
1156     libmp3lame
1157     libnut
1158     libopencore_amrnb
1159     libopencore_amrwb
1160     libopencv
1161     libopenjpeg
1162     libopus
1163     libpulse
1164     librtmp
1165     libschroedinger
1166     libsoxr
1167     libspeex
1168     libstagefright_h264
1169     libtheora
1170     libtwolame
1171     libutvideo
1172     libv4l2
1173     libvo_aacenc
1174     libvo_amrwbenc
1175     libvorbis
1176     libvpx
1177     libx264
1178     libxavs
1179     libxvid
1180     openal
1181     openssl
1182     x11grab
1183     zlib
1184 "
1185
1186 DOCUMENT_LIST="
1187     doc
1188     htmlpages
1189     manpages
1190     podpages
1191     txtpages
1192 "
1193
1194 HWACCEL_LIST="
1195     dxva2
1196     vaapi
1197     vda
1198     vdpau
1199 "
1200
1201 LIBRARY_LIST="
1202     avcodec
1203     avdevice
1204     avfilter
1205     avformat
1206     avresample
1207     avutil
1208     postproc
1209     swresample
1210     swscale
1211 "
1212
1213 PROGRAM_LIST="
1214     ffplay
1215     ffprobe
1216     ffserver
1217     ffmpeg
1218 "
1219
1220 CONFIG_LIST="
1221     $COMPONENT_LIST
1222     $DOCUMENT_LIST
1223     $EXTERNAL_LIBRARY_LIST
1224     $HWACCEL_LIST
1225     $LIBRARY_LIST
1226     $PROGRAM_LIST
1227     dct
1228     dwt
1229     fast_unaligned
1230     fft
1231     ftrapv
1232     gpl
1233     gray
1234     hardcoded_tables
1235     incompatible_fork_abi
1236     lsp
1237     lzo
1238     mdct
1239     memalign_hack
1240     memory_poisoning
1241     network
1242     nonfree
1243     pic
1244     rdft
1245     runtime_cpudetect
1246     safe_bitstream_reader
1247     shared
1248     small
1249     sram
1250     static
1251     swscale_alpha
1252     thumb
1253     version3
1254     xmm_clobber_test
1255 "
1256
1257 THREADS_LIST='
1258     pthreads
1259     w32threads
1260     os2threads
1261 '
1262
1263 ARCH_LIST='
1264     aarch64
1265     alpha
1266     arm
1267     avr32
1268     avr32_ap
1269     avr32_uc
1270     bfin
1271     ia64
1272     m68k
1273     mips
1274     mips64
1275     parisc
1276     ppc
1277     ppc64
1278     s390
1279     sh4
1280     sparc
1281     sparc64
1282     tilegx
1283     tilepro
1284     tomi
1285     x86
1286     x86_32
1287     x86_64
1288 '
1289
1290 ARCH_EXT_LIST_ARM='
1291     armv5te
1292     armv6
1293     armv6t2
1294     neon
1295     vfp
1296     vfpv3
1297 '
1298
1299 ARCH_EXT_LIST_X86='
1300     amd3dnow
1301     amd3dnowext
1302     avx
1303     fma4
1304     mmx
1305     mmxext
1306     sse
1307     sse2
1308     sse3
1309     sse4
1310     sse42
1311     ssse3
1312 '
1313
1314 ARCH_EXT_LIST="
1315     $ARCH_EXT_LIST_ARM
1316     $ARCH_EXT_LIST_X86
1317     altivec
1318     ppc4xx
1319     vis
1320     mipsfpu
1321     mips32r2
1322     mipsdspr1
1323     mipsdspr2
1324 "
1325
1326 HAVE_LIST_CMDLINE='
1327     inline_asm
1328     symver
1329     yasm
1330 '
1331
1332 HAVE_LIST_PUB='
1333     bigendian
1334     fast_unaligned
1335     incompatible_fork_abi
1336 '
1337
1338 MATH_FUNCS="
1339     atanf
1340     atan2f
1341     cbrt
1342     cbrtf
1343     cosf
1344     exp2
1345     exp2f
1346     expf
1347     isinf
1348     isnan
1349     ldexpf
1350     llrint
1351     llrintf
1352     log2
1353     log2f
1354     log10f
1355     lrint
1356     lrintf
1357     powf
1358     rint
1359     round
1360     roundf
1361     sinf
1362     trunc
1363     truncf
1364 "
1365
1366 HAVE_LIST="
1367     $ARCH_EXT_LIST
1368     $(add_suffix _external $ARCH_EXT_LIST)
1369     $(add_suffix _inline   $ARCH_EXT_LIST)
1370     $HAVE_LIST_CMDLINE
1371     $HAVE_LIST_PUB
1372     $THREADS_LIST
1373     $MATH_FUNCS
1374     access
1375     aligned_malloc
1376     aligned_stack
1377     alsa_asoundlib_h
1378     altivec_h
1379     arpa_inet_h
1380     asm_mod_q
1381     asm_mod_y
1382     asm_types_h
1383     attribute_may_alias
1384     attribute_packed
1385     cdio_paranoia_h
1386     cdio_paranoia_paranoia_h
1387     clock_gettime
1388     closesocket
1389     cmov
1390     CommandLineToArgvW
1391     cpunop
1392     CryptGenRandom
1393     dcbzl
1394     dev_bktr_ioctl_bt848_h
1395     dev_bktr_ioctl_meteor_h
1396     dev_ic_bt8xx_h
1397     dev_video_bktr_ioctl_bt848_h
1398     dev_video_meteor_ioctl_meteor_h
1399     direct_h
1400     dlfcn_h
1401     dlopen
1402     dos_paths
1403     dxva_h
1404     ebp_available
1405     ebx_available
1406     fast_64bit
1407     fast_clz
1408     fast_cmov
1409     fcntl
1410     fork
1411     getaddrinfo
1412     gethrtime
1413     getopt
1414     GetProcessAffinityMask
1415     GetProcessMemoryInfo
1416     GetProcessTimes
1417     GetSystemTimeAsFileTime
1418     getrusage
1419     getservbyport
1420     gettimeofday
1421     glob
1422     gnu_as
1423     gsm_h
1424     ibm_asm
1425     inet_aton
1426     io_h
1427     isatty
1428     jack_port_get_latency_range
1429     kbhit
1430     ldbrx
1431     libdc1394_1
1432     libdc1394_2
1433     local_aligned_16
1434     local_aligned_8
1435     localtime_r
1436     loongson
1437     lzo1x_999_compress
1438     machine_ioctl_bt848_h
1439     machine_ioctl_meteor_h
1440     machine_rw_barrier
1441     makeinfo
1442     malloc_h
1443     MapViewOfFile
1444     memalign
1445     MemoryBarrier
1446     mkstemp
1447     mm_empty
1448     mmap
1449     mprotect
1450     msvcrt
1451     nanosleep
1452     openjpeg_1_5_openjpeg_h
1453     PeekNamedPipe
1454     perl
1455     pod2man
1456     poll_h
1457     posix_memalign
1458     pthread_cancel
1459     rdtsc
1460     rsync_contimeout
1461     sched_getaffinity
1462     sdl
1463     SetConsoleTextAttribute
1464     setmode
1465     setrlimit
1466     Sleep
1467     sndio_h
1468     socklen_t
1469     soundcard_h
1470     strerror_r
1471     struct_addrinfo
1472     struct_group_source_req
1473     struct_ip_mreq_source
1474     struct_ipv6_mreq
1475     struct_pollfd
1476     struct_rusage_ru_maxrss
1477     struct_sctp_event_subscribe
1478     struct_sockaddr_in6
1479     struct_sockaddr_sa_len
1480     struct_sockaddr_storage
1481     struct_v4l2_frmivalenum_discrete
1482     symver_asm_label
1483     symver_gnu_asm
1484     sync_val_compare_and_swap
1485     sysconf
1486     sysctl
1487     sys_mman_h
1488     sys_param_h
1489     sys_resource_h
1490     sys_select_h
1491     sys_soundcard_h
1492     sys_time_h
1493     sys_videoio_h
1494     termios_h
1495     texi2html
1496     threads
1497     unistd_h
1498     usleep
1499     vfp_args
1500     VirtualAlloc
1501     windows_h
1502     winsock2_h
1503     xform_asm
1504     xmm_clobbers
1505 "
1506
1507 # options emitted with CONFIG_ prefix but not available on the command line
1508 CONFIG_EXTRA="
1509     aandcttables
1510     ac3dsp
1511     audio_frame_queue
1512     dsputil
1513     error_resilience
1514     frame_thread_encoder
1515     gcrypt
1516     golomb
1517     gplv3
1518     h264chroma
1519     h264dsp
1520     h264pred
1521     h264qpel
1522     hpeldsp
1523     huffman
1524     lgplv3
1525     lpc
1526     mpegaudio
1527     mpegaudiodsp
1528     mpegvideo
1529     mpegvideoenc
1530     nettle
1531     rangecoder
1532     rtpdec
1533     rtpenc_chain
1534     sinewin
1535     videodsp
1536     vp3dsp
1537 "
1538
1539 CMDLINE_SELECT="
1540     $ARCH_EXT_LIST
1541     $CONFIG_LIST
1542     $HAVE_LIST_CMDLINE
1543     $THREADS_LIST
1544     asm
1545     coverage
1546     cross_compile
1547     debug
1548     extra_warnings
1549     logging
1550     lto
1551     optimizations
1552     stripping
1553 "
1554
1555 PATHS_LIST='
1556     bindir
1557     datadir
1558     incdir
1559     libdir
1560     mandir
1561     prefix
1562     shlibdir
1563 '
1564
1565 CMDLINE_SET="
1566     $PATHS_LIST
1567     ar
1568     arch
1569     as
1570     assert_level
1571     build_suffix
1572     cc
1573     cpu
1574     cross_prefix
1575     cxx
1576     dep_cc
1577     extra_version
1578     host_cc
1579     host_cflags
1580     host_ld
1581     host_ldflags
1582     host_libs
1583     host_os
1584     install
1585     ld
1586     logfile
1587     malloc_prefix
1588     nm
1589     optflags
1590     pkg_config
1591     progs_suffix
1592     random_seed
1593     samples
1594     strip
1595     sysinclude
1596     sysroot
1597     target_exec
1598     target_os
1599     target_path
1600     toolchain
1601     valgrind
1602     yasmexe
1603 "
1604
1605 CMDLINE_APPEND="
1606     extra_cflags
1607     extra_cxxflags
1608     host_cppflags
1609 "
1610
1611 # code dependency declarations
1612
1613 # architecture extensions
1614
1615 armv5te_deps="arm"
1616 armv6_deps="arm"
1617 armv6t2_deps="arm"
1618 neon_deps="arm"
1619 vfp_deps="arm"
1620 vfpv3_deps="vfp"
1621
1622 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1623
1624 mipsfpu_deps="mips"
1625 mips32r2_deps="mips"
1626 mipsdspr1_deps="mips"
1627 mipsdspr2_deps="mips"
1628
1629 altivec_deps="ppc"
1630 ppc4xx_deps="ppc"
1631
1632 vis_deps="sparc"
1633
1634 x86_64_suggest="cmov fast_cmov"
1635
1636 amd3dnow_deps="mmx"
1637 amd3dnowext_deps="amd3dnow"
1638 mmx_deps="x86"
1639 mmxext_deps="mmx"
1640 sse_deps="mmxext"
1641 sse2_deps="sse"
1642 sse3_deps="sse2"
1643 ssse3_deps="sse3"
1644 sse4_deps="ssse3"
1645 sse42_deps="sse4"
1646 avx_deps="sse42"
1647 fma4_deps="avx"
1648
1649 mmx_external_deps="yasm"
1650 mmx_inline_deps="inline_asm"
1651 mmx_suggest="mmx_external mmx_inline"
1652
1653 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1654     eval dep=\$${ext}_deps
1655     eval ${ext}_external_deps='"${dep}_external"'
1656     eval ${ext}_inline_deps='"${dep}_inline"'
1657     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1658 done
1659
1660 aligned_stack_if_any="ppc x86"
1661 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1662 fast_clz_if_any="alpha avr32 mips ppc x86"
1663 fast_unaligned_if_any="ppc x86"
1664
1665 inline_asm_deps="!tms470"
1666 need_memalign="altivec neon sse"
1667
1668 symver_if_any="symver_asm_label symver_gnu_asm"
1669
1670 log2_deps="!msvcrt"
1671
1672 # subsystems
1673 dct_select="rdft"
1674 error_resilience_select="dsputil"
1675 frame_thread_encoder_deps="encoders threads"
1676 mdct_select="fft"
1677 rdft_select="fft"
1678 mpegaudio_select="mpegaudiodsp"
1679 mpegaudiodsp_select="dct"
1680 mpegvideo_select="dsputil error_resilience h264chroma hpeldsp videodsp"
1681 mpegvideoenc_select="mpegvideo"
1682
1683 # decoders / encoders
1684 aac_decoder_select="mdct sinewin"
1685 aac_encoder_select="audio_frame_queue mdct sinewin"
1686 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1687 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1688 ac3_encoder_select="mdct ac3dsp dsputil"
1689 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1690 alac_encoder_select="lpc"
1691 als_decoder_select="dsputil"
1692 amrnb_decoder_select="lsp"
1693 amrwb_decoder_select="lsp"
1694 amv_encoder_select="aandcttables"
1695 ape_decoder_select="dsputil"
1696 asv_decoder_select="dsputil"
1697 atrac1_decoder_select="mdct sinewin"
1698 atrac3_decoder_select="mdct"
1699 bink_decoder_select="dsputil hpeldsp"
1700 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1701 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1702 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1703 cllc_decoder_select="dsputil"
1704 comfortnoise_encoder_select="lpc"
1705 cook_decoder_select="dsputil mdct sinewin"
1706 cscd_decoder_select="lzo"
1707 cscd_decoder_suggest="zlib"
1708 dca_decoder_select="mdct"
1709 dirac_decoder_select="dsputil dwt golomb videodsp"
1710 dnxhd_decoder_select="dsputil"
1711 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1712 dvvideo_decoder_select="dsputil"
1713 dxa_decoder_select="zlib"
1714 eac3_decoder_select="ac3_decoder"
1715 eac3_encoder_select="ac3_encoder"
1716 eamad_decoder_select="aandcttables dsputil mpegvideo"
1717 eatgq_decoder_select="aandcttables"
1718 eatqi_decoder_select="aandcttables mpegvideo"
1719 exr_decoder_select="zlib"
1720 ffv1_decoder_select="dsputil golomb rangecoder"
1721 ffv1_encoder_select="rangecoder"
1722 ffvhuff_encoder_select="huffman"
1723 flac_decoder_select="golomb"
1724 flac_encoder_select="dsputil golomb lpc"
1725 flashsv_decoder_select="zlib"
1726 flashsv_encoder_select="zlib"
1727 flashsv2_encoder_select="zlib"
1728 flashsv2_decoder_select="zlib"
1729 flv_decoder_select="h263_decoder"
1730 flv_encoder_select="h263_encoder"
1731 fourxm_decoder_select="dsputil"
1732 fraps_decoder_select="dsputil huffman"
1733 g729_decoder_select="dsputil"
1734 h261_decoder_select="error_resilience mpegvideo"
1735 h261_encoder_select="aandcttables mpegvideoenc"
1736 h263_decoder_select="error_resilience h263_parser mpegvideo"
1737 h263_encoder_select="aandcttables mpegvideoenc"
1738 h263i_decoder_select="h263_decoder"
1739 h263p_encoder_select="h263_encoder"
1740 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1741 huffyuv_decoder_select="dsputil"
1742 huffyuv_encoder_select="huffman"
1743 iac_decoder_select="fft mdct sinewin"
1744 imc_decoder_select="dsputil fft mdct sinewin"
1745 indeo3_decoder_select="hpeldsp"
1746 interplay_video_decoder_select="hpeldsp"
1747 jpegls_decoder_select="golomb"
1748 jpegls_encoder_select="golomb"
1749 jv_decoder_select="dsputil"
1750 lagarith_decoder_select="dsputil"
1751 ljpeg_encoder_select="aandcttables mpegvideoenc"
1752 loco_decoder_select="golomb"
1753 mdec_decoder_select="dsputil error_resilience mpegvideo"
1754 mimic_decoder_select="dsputil hpeldsp"
1755 mjpeg_decoder_select="dsputil hpeldsp"
1756 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1757 mlp_decoder_select="dsputil mlp_parser"
1758 motionpixels_decoder_select="dsputil"
1759 mp1_decoder_select="mpegaudio"
1760 mp1float_decoder_select="mpegaudio"
1761 mp2_decoder_select="mpegaudio"
1762 mp2float_decoder_select="mpegaudio"
1763 mp3_decoder_select="mpegaudio"
1764 mp3adu_decoder_select="mpegaudio"
1765 mp3adufloat_decoder_select="mpegaudio"
1766 mp3float_decoder_select="mpegaudio"
1767 mp3on4_decoder_select="mpegaudio"
1768 mp3on4float_decoder_select="mpegaudio"
1769 mpc7_decoder_select="dsputil mpegaudiodsp"
1770 mpc8_decoder_select="dsputil mpegaudiodsp"
1771 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1772 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1773 mpeg1video_decoder_select="error_resilience mpegvideo"
1774 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1775 mpeg2video_decoder_select="error_resilience mpegvideo"
1776 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1777 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1778 mpeg4_encoder_select="h263_encoder"
1779 msmpeg4v1_decoder_select="h263_decoder"
1780 msmpeg4v1_encoder_select="h263_encoder"
1781 msmpeg4v2_decoder_select="h263_decoder"
1782 msmpeg4v2_encoder_select="h263_encoder"
1783 msmpeg4v3_decoder_select="h263_decoder"
1784 msmpeg4v3_encoder_select="h263_encoder"
1785 mss2_decoder_select="error_resilience vc1_decoder"
1786 nellymoser_decoder_select="mdct sinewin"
1787 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1788 nuv_decoder_select="dsputil lzo"
1789 png_decoder_select="zlib"
1790 png_encoder_select="dsputil zlib"
1791 prores_decoder_select="dsputil"
1792 qcelp_decoder_select="lsp"
1793 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1794 ra_144_encoder_select="audio_frame_queue lpc"
1795 ralf_decoder_select="golomb"
1796 rtjpeg_decoder_select="dsputil"
1797 rv10_decoder_select="error_resilience h263_decoder"
1798 rv10_encoder_select="h263_encoder"
1799 rv20_decoder_select="error_resilience h263_decoder"
1800 rv20_encoder_select="h263_encoder"
1801 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1802 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1803 shorten_decoder_select="golomb"
1804 sipr_decoder_select="lsp"
1805 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1806 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp error_resilience mpegvideoenc rangecoder"
1807 sonic_decoder_select="golomb"
1808 sonic_encoder_select="golomb"
1809 sonic_ls_encoder_select="golomb"
1810 svq1_decoder_select="hpeldsp"
1811 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1812 svq3_decoder_select="dsputil error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1813 svq3_decoder_suggest="zlib"
1814 tak_decoder_select="dsputil"
1815 theora_decoder_select="vp3_decoder"
1816 tiff_decoder_suggest="zlib"
1817 tiff_encoder_suggest="zlib"
1818 truehd_decoder_select="mlp_parser"
1819 truemotion2_decoder_select="dsputil"
1820 tscc_decoder_select="zlib"
1821 twinvq_decoder_select="mdct lsp sinewin"
1822 utvideo_decoder_select="dsputil"
1823 utvideo_encoder_select="huffman"
1824 vble_decoder_select="dsputil"
1825 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1826 vc1image_decoder_select="vc1_decoder"
1827 vorbis_decoder_select="mdct"
1828 vorbis_encoder_select="mdct"
1829 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1830 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1831 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1832 vp6a_decoder_select="vp6_decoder"
1833 vp6f_decoder_select="vp6_decoder"
1834 vp8_decoder_select="h264pred videodsp"
1835 wmapro_decoder_select="mdct sinewin"
1836 wmav1_decoder_select="mdct sinewin"
1837 wmav1_encoder_select="mdct sinewin"
1838 wmav2_decoder_select="mdct sinewin"
1839 wmav2_encoder_select="mdct sinewin"
1840 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1841 wmv1_decoder_select="h263_decoder"
1842 wmv1_encoder_select="h263_encoder"
1843 wmv2_decoder_select="h263_decoder videodsp"
1844 wmv2_encoder_select="h263_encoder"
1845 wmv3_decoder_select="vc1_decoder"
1846 wmv3image_decoder_select="wmv3_decoder"
1847 zerocodec_decoder_select="zlib"
1848 zlib_decoder_select="zlib"
1849 zlib_encoder_select="zlib"
1850 zmbv_decoder_select="zlib"
1851 zmbv_encoder_select="zlib"
1852
1853 # hardware accelerators
1854 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1855 dxva2_deps="dxva2api_h"
1856 vaapi_deps="va_va_h"
1857 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1858 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1859 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1860
1861 h263_vaapi_hwaccel_deps="vaapi"
1862 h263_vaapi_hwaccel_select="h263_decoder"
1863 h263_vdpau_hwaccel_deps="vdpau"
1864 h263_vdpau_hwaccel_select="h263_decoder"
1865 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1866 h264_dxva2_hwaccel_deps="dxva2"
1867 h264_dxva2_hwaccel_select="h264_decoder"
1868 h264_vaapi_hwaccel_deps="vaapi"
1869 h264_vaapi_hwaccel_select="h264_decoder"
1870 h264_vda_decoder_deps="vda"
1871 h264_vda_decoder_select="h264_decoder"
1872 h264_vda_hwaccel_deps="vda"
1873 h264_vda_hwaccel_select="h264_decoder"
1874 h264_vdpau_decoder_deps="vdpau"
1875 h264_vdpau_decoder_select="h264_decoder"
1876 h264_vdpau_hwaccel_deps="vdpau"
1877 h264_vdpau_hwaccel_select="h264_decoder"
1878 mpeg_vdpau_decoder_deps="vdpau"
1879 mpeg_vdpau_decoder_select="mpegvideo_decoder"
1880 mpeg1_vdpau_decoder_deps="vdpau"
1881 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1882 mpeg1_vdpau_hwaccel_deps="vdpau"
1883 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1884 mpeg2_crystalhd_decoder_select="crystalhd"
1885 mpeg2_dxva2_hwaccel_deps="dxva2"
1886 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1887 mpeg2_vaapi_hwaccel_deps="vaapi"
1888 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1889 mpeg2_vdpau_hwaccel_deps="vdpau"
1890 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1891 mpeg4_crystalhd_decoder_select="crystalhd"
1892 mpeg4_vaapi_hwaccel_deps="vaapi"
1893 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1894 mpeg4_vdpau_decoder_deps="vdpau"
1895 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1896 mpeg4_vdpau_hwaccel_deps="vdpau"
1897 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1898 msmpeg4_crystalhd_decoder_select="crystalhd"
1899 vc1_crystalhd_decoder_select="crystalhd"
1900 vc1_dxva2_hwaccel_deps="dxva2"
1901 vc1_dxva2_hwaccel_select="vc1_decoder"
1902 vc1_vaapi_hwaccel_deps="vaapi"
1903 vc1_vaapi_hwaccel_select="vc1_decoder"
1904 vc1_vdpau_decoder_deps="vdpau"
1905 vc1_vdpau_decoder_select="vc1_decoder"
1906 vc1_vdpau_hwaccel_deps="vdpau"
1907 vc1_vdpau_hwaccel_select="vc1_decoder"
1908 wmv3_crystalhd_decoder_select="crystalhd"
1909 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1910 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1911 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1912 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1913
1914 # parsers
1915 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1916 mpeg4video_parser_select="error_resilience mpegvideo"
1917 mpegvideo_parser_select="error_resilience mpegvideo"
1918 vc1_parser_select="mpegvideo"
1919
1920 # external libraries
1921 libaacplus_encoder_deps="libaacplus"
1922 libcelt_decoder_deps="libcelt"
1923 libfaac_encoder_deps="libfaac"
1924 libfaac_encoder_select="audio_frame_queue"
1925 libfdk_aac_encoder_deps="libfdk_aac"
1926 libfdk_aac_encoder_select="audio_frame_queue"
1927 libgsm_decoder_deps="libgsm"
1928 libgsm_encoder_deps="libgsm"
1929 libgsm_ms_decoder_deps="libgsm"
1930 libgsm_ms_encoder_deps="libgsm"
1931 libilbc_decoder_deps="libilbc"
1932 libilbc_encoder_deps="libilbc"
1933 libmodplug_demuxer_deps="libmodplug"
1934 libmp3lame_encoder_deps="libmp3lame"
1935 libmp3lame_encoder_select="audio_frame_queue"
1936 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1937 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1938 libopencore_amrnb_encoder_select="audio_frame_queue"
1939 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1940 libopenjpeg_decoder_deps="libopenjpeg"
1941 libopenjpeg_encoder_deps="libopenjpeg"
1942 libopus_decoder_deps="libopus"
1943 libopus_encoder_deps="libopus"
1944 libopus_encoder_select="audio_frame_queue"
1945 libschroedinger_decoder_deps="libschroedinger"
1946 libschroedinger_encoder_deps="libschroedinger"
1947 libspeex_decoder_deps="libspeex"
1948 libspeex_encoder_deps="libspeex"
1949 libspeex_encoder_select="audio_frame_queue"
1950 libstagefright_h264_decoder_deps="libstagefright_h264"
1951 libtheora_encoder_deps="libtheora"
1952 libtwolame_encoder_deps="libtwolame"
1953 libvo_aacenc_encoder_deps="libvo_aacenc"
1954 libvo_aacenc_encoder_select="audio_frame_queue"
1955 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1956 libvorbis_decoder_deps="libvorbis"
1957 libvorbis_encoder_deps="libvorbis"
1958 libvorbis_encoder_select="audio_frame_queue"
1959 libvpx_vp8_decoder_deps="libvpx"
1960 libvpx_vp8_encoder_deps="libvpx"
1961 libvpx_vp9_decoder_deps="libvpx"
1962 libvpx_vp9_encoder_deps="libvpx"
1963 libx264_encoder_deps="libx264"
1964 libx264rgb_encoder_deps="libx264"
1965 libxavs_encoder_deps="libxavs"
1966 libxvid_encoder_deps="libxvid"
1967 libutvideo_decoder_deps="libutvideo"
1968 libutvideo_encoder_deps="libutvideo"
1969
1970 # demuxers / muxers
1971 ac3_demuxer_select="ac3_parser"
1972 asf_stream_muxer_select="asf_muxer"
1973 avisynth_demuxer_deps="avisynth"
1974 dirac_demuxer_select="dirac_parser"
1975 dts_demuxer_select="dca_parser"
1976 dtshd_demuxer_select="dca_parser"
1977 eac3_demuxer_select="ac3_parser"
1978 f4v_muxer_select="mov_muxer"
1979 flac_demuxer_select="flac_parser"
1980 ipod_muxer_select="mov_muxer"
1981 ismv_muxer_select="mov_muxer"
1982 libnut_demuxer_deps="libnut"
1983 libnut_muxer_deps="libnut"
1984 matroska_audio_muxer_select="matroska_muxer"
1985 matroska_demuxer_suggest="bzlib lzo zlib"
1986 mov_demuxer_suggest="zlib"
1987 mov_muxer_select="rtpenc_chain"
1988 mp3_demuxer_select="mpegaudio_parser"
1989 mp4_muxer_select="mov_muxer"
1990 mpegts_muxer_select="adts_muxer latm_muxer"
1991 mpegtsraw_demuxer_select="mpegts_demuxer"
1992 mxf_d10_muxer_select="mxf_muxer"
1993 ogg_demuxer_select="golomb"
1994 psp_muxer_select="mov_muxer"
1995 rtp_demuxer_select="sdp_demuxer"
1996 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1997 rtsp_demuxer_select="http_protocol rtpdec"
1998 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1999 sap_demuxer_select="sdp_demuxer"
2000 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2001 sdp_demuxer_select="rtpdec"
2002 smoothstreaming_muxer_select="ismv_muxer"
2003 spdif_muxer_select="aac_parser"
2004 tak_demuxer_select="tak_parser"
2005 tg2_muxer_select="mov_muxer"
2006 tgp_muxer_select="mov_muxer"
2007 vobsub_demuxer_select="mpegps_demuxer"
2008 w64_demuxer_deps="wav_demuxer"
2009 w64_muxer_deps="wav_muxer"
2010
2011 # indevs / outdevs
2012 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2013 alsa_outdev_deps="alsa_asoundlib_h"
2014 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2015 caca_outdev_deps="libcaca"
2016 dshow_indev_deps="IBaseFilter"
2017 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2018 dv1394_indev_deps="dv1394 dv_demuxer"
2019 fbdev_indev_deps="linux_fb_h"
2020 iec61883_indev_deps="libiec61883"
2021 jack_indev_deps="jack_jack_h sem_timedwait"
2022 lavfi_indev_deps="avfilter"
2023 libcdio_indev_deps="libcdio"
2024 libdc1394_indev_deps="libdc1394"
2025 libv4l2_indev_deps="libv4l2"
2026 openal_indev_deps="openal"
2027 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2028 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2029 pulse_indev_deps="libpulse"
2030 sdl_outdev_deps="sdl"
2031 sndio_indev_deps="sndio_h"
2032 sndio_outdev_deps="sndio_h"
2033 v4l_indev_deps="linux_videodev_h"
2034 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2035 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2036 vfwcap_indev_extralibs="-lavicap32"
2037 x11grab_indev_deps="x11grab"
2038
2039 # protocols
2040 bluray_protocol_deps="libbluray"
2041 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2042 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2043 ffrtmpcrypt_protocol_select="tcp_protocol"
2044 ffrtmphttp_protocol_deps="!librtmp_protocol"
2045 ffrtmphttp_protocol_select="http_protocol"
2046 gopher_protocol_select="network"
2047 httpproxy_protocol_select="tcp_protocol"
2048 http_protocol_select="tcp_protocol"
2049 https_protocol_select="tls_protocol"
2050 librtmp_protocol_deps="librtmp"
2051 librtmpe_protocol_deps="librtmp"
2052 librtmps_protocol_deps="librtmp"
2053 librtmpt_protocol_deps="librtmp"
2054 librtmpte_protocol_deps="librtmp"
2055 mmsh_protocol_select="http_protocol"
2056 mmst_protocol_select="network"
2057 rtmp_protocol_deps="!librtmp_protocol"
2058 rtmp_protocol_select="tcp_protocol"
2059 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2060 rtmps_protocol_deps="!librtmp_protocol"
2061 rtmps_protocol_select="tls_protocol"
2062 rtmpt_protocol_select="ffrtmphttp_protocol"
2063 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2064 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2065 rtp_protocol_select="udp_protocol"
2066 sctp_protocol_deps="struct_sctp_event_subscribe"
2067 sctp_protocol_select="network"
2068 srtp_protocol_select="rtp_protocol"
2069 tcp_protocol_select="network"
2070 tls_protocol_deps_any="openssl gnutls"
2071 tls_protocol_select="tcp_protocol"
2072 udp_protocol_select="network"
2073
2074 # filters
2075 aconvert_filter_deps="swresample"
2076 amovie_filter_deps="avcodec avformat"
2077 aresample_filter_deps="swresample"
2078 ass_filter_deps="libass"
2079 asyncts_filter_deps="avresample"
2080 atempo_filter_deps="avcodec rdft"
2081 blackframe_filter_deps="gpl"
2082 boxblur_filter_deps="gpl"
2083 colormatrix_filter_deps="gpl"
2084 cropdetect_filter_deps="gpl"
2085 decimate_filter_deps="gpl avcodec"
2086 delogo_filter_deps="gpl"
2087 deshake_filter_deps="avcodec"
2088 drawtext_filter_deps="libfreetype"
2089 ebur128_filter_deps="gpl"
2090 flite_filter_deps="libflite"
2091 frei0r_filter_deps="frei0r dlopen"
2092 frei0r_filter_extralibs='$ldl'
2093 frei0r_src_filter_deps="frei0r dlopen"
2094 frei0r_src_filter_extralibs='$ldl'
2095 geq_filter_deps="gpl"
2096 histeq_filter_deps="gpl"
2097 hqdn3d_filter_deps="gpl"
2098 hue_filter_deps="gpl"
2099 kerndeint_filter_deps="gpl"
2100 movie_filter_deps="avcodec avformat"
2101 mp_filter_deps="gpl avcodec swscale inline_asm"
2102 mptestsrc_filter_deps="gpl"
2103 negate_filter_deps="lut_filter"
2104 noise_filter_deps="gpl"
2105 resample_filter_deps="avresample"
2106 ocv_filter_deps="libopencv"
2107 pan_filter_deps="swresample"
2108 pp_filter_deps="gpl postproc"
2109 removelogo_filter_deps="avcodec avformat swscale"
2110 scale_filter_deps="swscale"
2111 smartblur_filter_deps="gpl swscale"
2112 showspectrum_filter_deps="avcodec rdft"
2113 stereo3d_filter_deps="gpl"
2114 subtitles_filter_deps="avformat avcodec libass"
2115 super2xsai_filter_deps="gpl"
2116 tinterlace_filter_deps="gpl"
2117 yadif_filter_deps="gpl"
2118 pixfmts_super2xsai_test_deps="super2xsai_filter"
2119 tinterlace_merge_test_deps="tinterlace_filter"
2120 tinterlace_pad_test_deps="tinterlace_filter"
2121
2122 # libraries
2123 avcodec_deps="avutil"
2124 avdevice_deps="avutil avcodec avformat"
2125 avfilter_deps="avutil"
2126 avformat_deps="avutil avcodec"
2127 avresample_deps="avutil"
2128 postproc_deps="avutil gpl"
2129 swscale_deps="avutil"
2130
2131 # programs
2132 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2133 ffmpeg_select="format_filter aformat_filter
2134                setpts_filter null_filter anull_filter"
2135 ffplay_deps="avcodec avformat swscale swresample sdl"
2136 ffplay_select="rdft crop_filter"
2137 ffprobe_deps="avcodec avformat"
2138 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2139 ffserver_extralibs='$ldl'
2140
2141 # documentation
2142 podpages_deps="perl"
2143 manpages_deps="perl pod2man"
2144 htmlpages_deps="texi2html"
2145 txtpages_deps="makeinfo"
2146 doc_deps_any="manpages htmlpages podpages txtpages"
2147
2148 # default parameters
2149
2150 logfile="config.log"
2151
2152 # installation paths
2153 prefix_default="/usr/local"
2154 bindir_default='${prefix}/bin'
2155 datadir_default='${prefix}/share/ffmpeg'
2156 incdir_default='${prefix}/include'
2157 libdir_default='${prefix}/lib'
2158 mandir_default='${prefix}/share/man'
2159 shlibdir_default="$libdir_default"
2160
2161 # toolchain
2162 ar_default="ar"
2163 cc_default="gcc"
2164 cxx_default="g++"
2165 host_cc_default="gcc"
2166 cp_f="cp -f"
2167 install="install"
2168 ln_s="ln -s -f"
2169 nm_default="nm -g"
2170 objformat="elf"
2171 pkg_config_default=pkg-config
2172 ranlib="ranlib"
2173 strip_default="strip"
2174 yasmexe_default="yasm"
2175
2176 nogas=":"
2177
2178 # machine
2179 arch_default=$(uname -m)
2180 cpu="generic"
2181
2182 # OS
2183 target_os_default=$(tolower $(uname -s))
2184 host_os=$target_os_default
2185
2186 # configurable options
2187 enable $PROGRAM_LIST
2188 enable $DOCUMENT_LIST
2189 enable $(filter_out avresample $LIBRARY_LIST)
2190 enable stripping
2191
2192 enable asm
2193 enable debug
2194 enable doc
2195 enable optimizations
2196 enable runtime_cpudetect
2197 enable safe_bitstream_reader
2198 enable static
2199 enable swscale_alpha
2200
2201 # By default, enable only those hwaccels that have no external dependencies.
2202 enable dxva2 vdpau
2203
2204 # build settings
2205 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2206 FFSERVERLDFLAGS=-Wl,-E
2207 LIBPREF="lib"
2208 LIBSUF=".a"
2209 FULLNAME='$(NAME)$(BUILDSUF)'
2210 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2211 SLIBPREF="lib"
2212 SLIBSUF=".so"
2213 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2214 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2215 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2216 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2217 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2218 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2219
2220 asflags_filter=echo
2221 cflags_filter=echo
2222 ldflags_filter=echo
2223
2224 AS_C='-c'
2225 AS_O='-o $@'
2226 CC_C='-c'
2227 CC_E='-E -o $@'
2228 CC_O='-o $@'
2229 CXX_C='-c'
2230 CXX_O='-o $@'
2231 LD_O='-o $@'
2232 LD_LIB='-l%'
2233 LD_PATH='-L'
2234 HOSTCC_C='-c'
2235 HOSTCC_O='-o $@'
2236 HOSTLD_O='-o $@'
2237
2238 host_cflags='-O3 -g'
2239 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2240 host_libs='-lm'
2241 host_cflags_filter=echo
2242 host_ldflags_filter=echo
2243
2244 target_path='$(CURDIR)'
2245
2246 # since the object filename is not given with the -MM flag, the compiler
2247 # is only able to print the basename, and we must add the path ourselves
2248 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2249 DEPFLAGS='-MM'
2250
2251 # find source path
2252 if test -f configure; then
2253     source_path=.
2254 else
2255     source_path=$(cd $(dirname "$0"); pwd)
2256     echo "$source_path" | grep -q '[[:blank:]]' &&
2257         die "Out of tree builds are impossible with whitespace in source path."
2258     test -e "$source_path/config.h" &&
2259         die "Out of tree builds are impossible with config.h in source dir."
2260 fi
2261
2262 for v in "$@"; do
2263     r=${v#*=}
2264     l=${v%"$r"}
2265     r=$(sh_quote "$r")
2266     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2267 done
2268
2269 find_things(){
2270     thing=$1
2271     pattern=$2
2272     file=$source_path/$3
2273     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2274 }
2275
2276 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2277 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2278 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2279 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2280 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2281 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2282 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2283 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2284 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2285 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2286 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2287
2288 ALL_COMPONENTS="
2289     $BSF_LIST
2290     $DECODER_LIST
2291     $DEMUXER_LIST
2292     $ENCODER_LIST
2293     $FILTER_LIST
2294     $HWACCEL_LIST
2295     $INDEV_LIST
2296     $MUXER_LIST
2297     $OUTDEV_LIST
2298     $PARSER_LIST
2299     $PROTOCOL_LIST
2300 "
2301
2302 for n in $COMPONENT_LIST; do
2303     v=$(toupper ${n%s})_LIST
2304     eval enable \$$v
2305     eval ${n}_if_any="\$$v"
2306 done
2307
2308 enable $ARCH_EXT_LIST
2309
2310 die_unknown(){
2311     echo "Unknown option \"$1\"."
2312     echo "See $0 --help for available options."
2313     exit 1
2314 }
2315
2316 print_3_columns() {
2317     cat | tr ' ' '\n' | sort | pr -r -3 -t
2318 }
2319
2320 show_list() {
2321     suffix=_$1
2322     shift
2323     echo $* | sed s/$suffix//g | print_3_columns
2324     exit 0
2325 }
2326
2327 rand_list(){
2328     IFS=', '
2329     set -- $*
2330     unset IFS
2331     for thing; do
2332         comp=${thing%:*}
2333         prob=${thing#$comp}
2334         prob=${prob#:}
2335         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2336         echo "prob ${prob:-0.5}"
2337         printf '%s\n' $comp
2338     done
2339 }
2340
2341 do_random(){
2342     action=$1
2343     shift
2344     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2345     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2346 }
2347
2348 for opt do
2349     optval="${opt#*=}"
2350     case "$opt" in
2351         --extra-ldflags=*)
2352             add_ldflags $optval
2353         ;;
2354         --extra-libs=*)
2355             add_extralibs $optval
2356         ;;
2357         --disable-devices)
2358             disable $INDEV_LIST $OUTDEV_LIST
2359         ;;
2360         --enable-debug=*)
2361             debuglevel="$optval"
2362         ;;
2363         --disable-programs)
2364             disable $PROGRAM_LIST
2365         ;;
2366         --disable-everything)
2367             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2368         ;;
2369         --disable-all)
2370             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2371             disable $LIBRARY_LIST $PROGRAM_LIST doc
2372         ;;
2373         --enable-random|--disable-random)
2374             action=${opt%%-random}
2375             do_random ${action#--} $COMPONENT_LIST
2376         ;;
2377         --enable-random=*|--disable-random=*)
2378             action=${opt%%-random=*}
2379             do_random ${action#--} $optval
2380         ;;
2381         --enable-*=*|--disable-*=*)
2382             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2383             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2384             eval list=\$$(toupper $thing)_LIST
2385             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2386             list=$(filter "$name" $list)
2387             [ "$list" = "" ] && warn "Option $opt did not match anything"
2388             $action $list
2389         ;;
2390         --enable-?*|--disable-?*)
2391             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2392             if is_in $option $COMPONENT_LIST; then
2393                 test $action = disable && action=unset
2394                 eval $action \$$(toupper ${option%s})_LIST
2395             elif is_in $option $CMDLINE_SELECT; then
2396                 $action $option
2397             else
2398                 die_unknown $opt
2399             fi
2400         ;;
2401         --list-*)
2402             NAME="${opt#--list-}"
2403             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2404             NAME=${NAME%s}
2405             eval show_list $NAME \$$(toupper $NAME)_LIST
2406         ;;
2407         --help|-h) show_help
2408         ;;
2409         --fatal-warnings) enable fatal_warnings
2410         ;;
2411         *)
2412             optname="${opt%%=*}"
2413             optname="${optname#--}"
2414             optname=$(echo "$optname" | sed 's/-/_/g')
2415             if is_in $optname $CMDLINE_SET; then
2416                 eval $optname='$optval'
2417             elif is_in $optname $CMDLINE_APPEND; then
2418                 append $optname "$optval"
2419             else
2420                 die_unknown $opt
2421             fi
2422         ;;
2423     esac
2424 done
2425
2426 disabled logging && logfile=/dev/null
2427
2428 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2429 set >> $logfile
2430
2431 test -n "$cross_prefix" && enable cross_compile
2432
2433 if enabled cross_compile; then
2434     test -n "$arch" && test -n "$target_os" ||
2435         die "Must specify target arch and OS when cross-compiling"
2436 fi
2437
2438 ar_default="${cross_prefix}${ar_default}"
2439 cc_default="${cross_prefix}${cc_default}"
2440 cxx_default="${cross_prefix}${cxx_default}"
2441 nm_default="${cross_prefix}${nm_default}"
2442 pkg_config_default="${cross_prefix}${pkg_config_default}"
2443 ranlib="${cross_prefix}${ranlib}"
2444 strip_default="${cross_prefix}${strip_default}"
2445
2446 sysinclude_default="${sysroot}/usr/include"
2447
2448 case "$toolchain" in
2449     clang-asan)
2450         cc_default="clang"
2451         add_cflags  -faddress-sanitizer
2452         add_ldflags -faddress-sanitizer
2453     ;;
2454     clang-tsan)
2455         cc_default="clang"
2456         add_cflags  -fthread-sanitizer
2457         add_ldflags -fthread-sanitizer
2458     ;;
2459     msvc)
2460         cc_default="c99wrap cl"
2461         ld_default="c99wrap link"
2462         nm_default="dumpbin -symbols"
2463         ar_default="lib"
2464         target_os_default="win32"
2465     ;;
2466     ?*)
2467         die "Unknown toolchain $toolchain"
2468     ;;
2469 esac
2470
2471 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2472 enabled cross_compile || host_cc_default=$cc
2473 set_default host_cc
2474
2475 if ! $pkg_config --version >/dev/null 2>&1; then
2476     warn "$pkg_config not found, library detection may fail."
2477     pkg_config=false
2478 fi
2479
2480 exesuf() {
2481     case $1 in
2482         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2483     esac
2484 }
2485
2486 EXESUF=$(exesuf $target_os)
2487 HOSTEXESUF=$(exesuf $host_os)
2488
2489 # set temporary file name
2490 : ${TMPDIR:=$TEMPDIR}
2491 : ${TMPDIR:=$TMP}
2492 : ${TMPDIR:=/tmp}
2493
2494 if ! check_cmd mktemp -u XXXXXX; then
2495     # simple replacement for missing mktemp
2496     # NOT SAFE FOR GENERAL USE
2497     mktemp(){
2498         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2499     }
2500 fi
2501
2502 tmpfile(){
2503     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2504         (set -C; exec > $tmp) 2>/dev/null ||
2505         die "Unable to create temporary file in $TMPDIR."
2506     append TMPFILES $tmp
2507     eval $1=$tmp
2508 }
2509
2510 trap 'rm -f -- $TMPFILES' EXIT
2511
2512 tmpfile TMPASM .asm
2513 tmpfile TMPC   .c
2514 tmpfile TMPCPP .cpp
2515 tmpfile TMPE   $EXESUF
2516 tmpfile TMPH   .h
2517 tmpfile TMPO   .o
2518 tmpfile TMPS   .S
2519 tmpfile TMPSH  .sh
2520 tmpfile TMPV   .ver
2521
2522 unset -f mktemp
2523
2524 chmod +x $TMPE
2525
2526 # make sure we can execute files in $TMPDIR
2527 cat > $TMPSH 2>> $logfile <<EOF
2528 #! /bin/sh
2529 EOF
2530 chmod +x $TMPSH >> $logfile 2>&1
2531 if ! $TMPSH >> $logfile 2>&1; then
2532     cat <<EOF
2533 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2534 variable to another directory and make sure that it is not mounted noexec.
2535 EOF
2536     die "Sanity test failed."
2537 fi
2538
2539 ccc_flags(){
2540     for flag; do
2541         case $flag in
2542             -std=c99)           echo -c99                       ;;
2543             -mcpu=*)            echo -arch ${flag#*=}           ;;
2544             -mieee)             echo -ieee                      ;;
2545             -O*|-fast)          echo $flag                      ;;
2546             -fno-math-errno)    echo -assume nomath_errno       ;;
2547             -g)                 echo -g3                        ;;
2548             -Wall)              echo -msg_enable level2         ;;
2549             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2550             -Wl,*)              echo $flag                      ;;
2551             -f*|-W*)                                            ;;
2552             *)                  echo $flag                      ;;
2553         esac
2554    done
2555 }
2556
2557 msvc_flags(){
2558     for flag; do
2559         case $flag in
2560             -fomit-frame-pointer) echo -Oy ;;
2561             -g)                   echo -Z7 ;;
2562             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2563                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2564                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2565                                        -wd4554 \
2566                                        -wd4996 -wd4273 ;;
2567             -std=c99)             ;;
2568             -fno-math-errno)      ;;
2569             -fno-common)          ;;
2570             -fno-signed-zeros)    ;;
2571             -fPIC)                ;;
2572             -lz)                  echo zlib.lib ;;
2573             -lavifil32)           echo vfw32.lib ;;
2574             -lavicap32)           echo vfw32.lib user32.lib ;;
2575             -l*)                  echo ${flag#-l}.lib ;;
2576             *)                    echo $flag ;;
2577         esac
2578     done
2579 }
2580
2581 pgi_flags(){
2582     for flag; do
2583         case $flag in
2584             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2585             -fomit-frame-pointer) echo -Mnoframe ;;
2586             -g)                   echo -gopt ;;
2587             *)                    echo $flag ;;
2588         esac
2589     done
2590 }
2591
2592 suncc_flags(){
2593     for flag; do
2594         case $flag in
2595             -march=*|-mcpu=*)
2596                 case "${flag#*=}" in
2597                     native)                   echo -xtarget=native       ;;
2598                     v9|niagara)               echo -xarch=sparc          ;;
2599                     ultrasparc)               echo -xarch=sparcvis       ;;
2600                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2601                     i586|pentium)             echo -xchip=pentium        ;;
2602                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2603                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2604                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2605                     pentium4*)          echo -xtarget=pentium4           ;;
2606                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2607                     *-sse3)             echo -xarch=sse3                 ;;
2608                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2609                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2610                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2611                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2612                     bdver*)                   echo -xarch=avx            ;;
2613                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2614                     k8|opteron|athlon64|athlon-fx)
2615                                               echo -xarch=sse2a          ;;
2616                     athlon*)                  echo -xarch=pentium_proa   ;;
2617                 esac
2618                 ;;
2619             -std=c99)             echo -xc99              ;;
2620             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2621             -fPIC)                echo -KPIC -xcode=pic32 ;;
2622             -W*,*)                echo $flag              ;;
2623             -f*-*|-W*|-mimpure-text)                      ;;
2624             -shared)              echo -G                 ;;
2625             *)                    echo $flag              ;;
2626         esac
2627     done
2628 }
2629
2630 tms470_flags(){
2631     for flag; do
2632         case $flag in
2633             -march=*|-mcpu=*)
2634                 case "${flag#*=}" in
2635                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2636                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2637                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2638                     armv6*|arm11*)          echo -mv=6   ;;
2639                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2640                                             echo -mv=5e  ;;
2641                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2642                 esac
2643                 ;;
2644             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2645             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2646             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2647             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2648             -msoft-float)   echo --float_support=vfplib       ;;
2649             -O[0-3]|-mf=*)  echo $flag                        ;;
2650             -g)             echo -g -mn                       ;;
2651             -pds=*)         echo $flag                        ;;
2652             -D*|-I*)        echo $flag                        ;;
2653             --gcc|--abi=*)  echo $flag                        ;;
2654             -me)            echo $flag                        ;;
2655         esac
2656     done
2657 }
2658
2659 probe_cc(){
2660     pfx=$1
2661     _cc=$2
2662
2663     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2664     unset _ld_o _ldflags _ld_lib _ld_path
2665     unset _depflags _DEPCMD _DEPFLAGS
2666     _flags_filter=echo
2667
2668     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2669         _type=llvm_gcc
2670         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2671         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2672         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2673         _cflags_speed='-O3'
2674         _cflags_size='-Os'
2675     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2676         _type=gcc
2677         gcc_version=$($_cc --version | head -n1)
2678         gcc_basever=$($_cc -dumpversion)
2679         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2680         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2681         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2682         if ! $_cc -dumpversion | grep -q '^2\.'; then
2683             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2684         fi
2685         _cflags_speed='-O3'
2686         _cflags_size='-Os'
2687     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2688         _type=icc
2689         _ident=$($_cc --version | head -n1)
2690         _depflags='-MMD'
2691         _cflags_speed='-O3'
2692         _cflags_size='-Os'
2693         _cflags_noopt='-O1'
2694     elif $_cc -v 2>&1 | grep -q xlc; then
2695         _type=xlc
2696         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2697         _cflags_speed='-O5'
2698         _cflags_size='-O5 -qcompact'
2699     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2700         _type=ccc
2701         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2702         _DEPFLAGS='-M'
2703         _cflags_speed='-fast'
2704         _cflags_size='-O1'
2705         _flags_filter=ccc_flags
2706     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2707         test -d "$sysroot" || die "No valid sysroot specified."
2708         _type=armcc
2709         _ident=$($_cc --vsn | head -n1)
2710         armcc_conf="$PWD/armcc.conf"
2711         $_cc --arm_linux_configure                 \
2712              --arm_linux_config_file="$armcc_conf" \
2713              --configure_sysroot="$sysroot"        \
2714              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2715              die "Error creating armcc configuration file."
2716         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2717         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2718         as_default="${cross_prefix}gcc"
2719         _depflags='-MMD'
2720         _cflags_speed='-O3'
2721         _cflags_size='-Os'
2722     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2723         _type=tms470
2724         _ident=$($_cc -version | head -n1 | tr -s ' ')
2725         _flags='--gcc --abi=eabi -me'
2726         _cc_e='-ppl -fe=$@'
2727         _cc_o='-fe=$@'
2728         _depflags='-ppa -ppd=$(@:.o=.d)'
2729         _cflags_speed='-O3 -mf=5'
2730         _cflags_size='-O3 -mf=2'
2731         _flags_filter=tms470_flags
2732     elif $_cc -v 2>&1 | grep -q clang; then
2733         _type=clang
2734         _ident=$($_cc --version | head -n1)
2735         _depflags='-MMD'
2736         _cflags_speed='-O3'
2737         _cflags_size='-Os'
2738     elif $_cc -V 2>&1 | grep -q Sun; then
2739         _type=suncc
2740         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2741         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2742         _DEPFLAGS='-xM1 -xc99'
2743         _ldflags='-std=c99'
2744         _cflags_speed='-O5'
2745         _cflags_size='-O5 -xspace'
2746         _flags_filter=suncc_flags
2747     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2748         _type=pathscale
2749         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2750         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2751         _cflags_speed='-O2'
2752         _cflags_size='-Os'
2753         _flags_filter='filter_out -Wdisabled-optimization'
2754     elif $_cc -v 2>&1 | grep -q Open64; then
2755         _type=open64
2756         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2757         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2758         _cflags_speed='-O2'
2759         _cflags_size='-Os'
2760         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2761     elif $_cc -V 2>&1 | grep -q Portland; then
2762         _type=pgi
2763         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2764         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2765         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2766         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2767         _cflags_noopt="-O1"
2768         _flags_filter=pgi_flags
2769     elif $_cc 2>&1 | grep -q Microsoft; then
2770         _type=msvc
2771         _ident=$($cc 2>&1 | head -n1)
2772         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2773         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2774         _cflags_speed="-O2"
2775         _cflags_size="-O1"
2776         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2777         if $_cc 2>&1 | grep -q Linker; then
2778             _ld_o='-out $@'
2779         else
2780             _ld_o='-Fe$@'
2781         fi
2782         _cc_o='-Fo $@'
2783         _cc_e='-P -Fi $@'
2784         _flags_filter=msvc_flags
2785         _ld_lib='lib%.a'
2786         _ld_path='-libpath:'
2787         _flags='-nologo'
2788         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2789         if [ $pfx = hostcc ]; then
2790             append _cflags -Dsnprintf=_snprintf
2791         fi
2792         disable stripping
2793     fi
2794
2795     eval ${pfx}_type=\$_type
2796     eval ${pfx}_ident=\$_ident
2797 }
2798
2799 set_ccvars(){
2800     eval ${1}_C=\${_cc_c-\${${1}_C}}
2801     eval ${1}_E=\${_cc_e-\${${1}_E}}
2802     eval ${1}_O=\${_cc_o-\${${1}_O}}
2803
2804     if [ -n "$_depflags" ]; then
2805         eval ${1}_DEPFLAGS=\$_depflags
2806     else
2807         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2808         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2809         eval DEP${1}FLAGS=\$_flags
2810     fi
2811 }
2812
2813 probe_cc cc "$cc"
2814 cflags_filter=$_flags_filter
2815 cflags_speed=$_cflags_speed
2816 cflags_size=$_cflags_size
2817 cflags_noopt=$_cflags_noopt
2818 add_cflags $_flags $_cflags
2819 cc_ldflags=$_ldflags
2820 set_ccvars CC
2821
2822 probe_cc hostcc "$host_cc"
2823 host_cflags_filter=$_flags_filter
2824 add_host_cflags  $_flags $_cflags
2825 set_ccvars HOSTCC
2826
2827 test -n "$cc_type" && enable $cc_type ||
2828     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2829
2830 : ${as_default:=$cc}
2831 : ${dep_cc_default:=$cc}
2832 : ${ld_default:=$cc}
2833 : ${host_ld_default:=$host_cc}
2834 set_default ar as dep_cc ld host_ld
2835
2836 probe_cc as "$as"
2837 asflags_filter=$_flags_filter
2838 add_asflags $_flags $_cflags
2839 set_ccvars AS
2840
2841 probe_cc ld "$ld"
2842 ldflags_filter=$_flags_filter
2843 add_ldflags $_flags $_ldflags
2844 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2845 LD_O=${_ld_o-$LD_O}
2846 LD_LIB=${_ld_lib-$LD_LIB}
2847 LD_PATH=${_ld_path-$LD_PATH}
2848
2849 probe_cc hostld "$host_ld"
2850 host_ldflags_filter=$_flags_filter
2851 add_host_ldflags $_flags $_ldflags
2852 HOSTLD_O=${_ld_o-$HOSTLD_O}
2853
2854 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2855     probe_cc depcc "$dep_cc"
2856     CCDEP=${_DEPCMD:-$DEPCMD}
2857     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2858     DEPCCFLAGS=$_flags
2859 fi
2860
2861 if $ar 2>&1 | grep -q Microsoft; then
2862     arflags="-nologo"
2863     ar_o='-out:$@'
2864 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2865     arflags="rq"
2866     ar_o='$@'
2867 else
2868     arflags="rc"
2869     ar_o='$@'
2870 fi
2871
2872 add_cflags $extra_cflags
2873 add_cxxflags $extra_cxxflags
2874 add_asflags $extra_cflags
2875
2876 if test -n "$sysroot"; then
2877     case "$cc_type" in
2878         gcc|llvm_gcc|clang)
2879             add_cppflags --sysroot="$sysroot"
2880             add_ldflags --sysroot="$sysroot"
2881         ;;
2882         tms470)
2883             add_cppflags -I"$sysinclude"
2884             add_ldflags  --sysroot="$sysroot"
2885         ;;
2886     esac
2887 fi
2888
2889 if test "$cpu" = host; then
2890     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2891
2892     case "$cc_type" in
2893         gcc|llvm_gcc)
2894             check_native(){
2895                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2896                 sed -n "/cc1.*$1=/{
2897                             s/.*$1=\\([^ ]*\\).*/\\1/
2898                             p
2899                             q
2900                         }" $TMPE
2901             }
2902             cpu=$(check_native -march || check_native -mcpu)
2903         ;;
2904     esac
2905
2906     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2907 fi
2908
2909 # Deal with common $arch aliases
2910 case "$arch" in
2911     aarch64|arm64)
2912         arch="aarch64"
2913     ;;
2914     arm*|iPad*)
2915         arch="arm"
2916     ;;
2917     mips*|IP*)
2918         arch="mips"
2919     ;;
2920     parisc*|hppa*)
2921         arch="parisc"
2922     ;;
2923     "Power Macintosh"|ppc*|powerpc*)
2924         arch="ppc"
2925     ;;
2926     s390|s390x)
2927         arch="s390"
2928     ;;
2929     sh4|sh)
2930         arch="sh4"
2931     ;;
2932     sun4u|sparc*)
2933         arch="sparc"
2934     ;;
2935     tilegx|tile-gx)
2936         arch="tilegx"
2937     ;;
2938     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2939         arch="x86"
2940     ;;
2941 esac
2942
2943 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2944 enable $arch
2945
2946 # Add processor-specific flags
2947 if enabled aarch64; then
2948
2949     case $cpu in
2950         armv*)
2951             cpuflags="-march=$cpu"
2952         ;;
2953         *)
2954             cpuflags="-mcpu=$cpu"
2955         ;;
2956     esac
2957
2958 elif enabled alpha; then
2959
2960     cpuflags="-mcpu=$cpu"
2961
2962 elif enabled arm; then
2963
2964     check_arm_arch() {
2965         check_cpp_condition stddef.h \
2966             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2967             $cpuflags
2968     }
2969
2970     probe_arm_arch() {
2971         if   check_arm_arch 4;        then echo armv4;
2972         elif check_arm_arch 4T;       then echo armv4t;
2973         elif check_arm_arch 5;        then echo armv5;
2974         elif check_arm_arch 5E;       then echo armv5e;
2975         elif check_arm_arch 5T;       then echo armv5t;
2976         elif check_arm_arch 5TE;      then echo armv5te;
2977         elif check_arm_arch 5TEJ;     then echo armv5te;
2978         elif check_arm_arch 6;        then echo armv6;
2979         elif check_arm_arch 6J;       then echo armv6j;
2980         elif check_arm_arch 6K;       then echo armv6k;
2981         elif check_arm_arch 6Z;       then echo armv6z;
2982         elif check_arm_arch 6ZK;      then echo armv6zk;
2983         elif check_arm_arch 6T2;      then echo armv6t2;
2984         elif check_arm_arch 7;        then echo armv7;
2985         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2986         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2987         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2988         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2989         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2990         fi
2991     }
2992
2993     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2994
2995     case $cpu in
2996         armv*)
2997             cpuflags="-march=$cpu"
2998             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2999         ;;
3000         *)
3001             cpuflags="-mcpu=$cpu"
3002             case $cpu in
3003                 cortex-a*)                               subarch=armv7a  ;;
3004                 cortex-r*)                               subarch=armv7r  ;;
3005                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3006                 arm11*)                                  subarch=armv6   ;;
3007                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3008                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3009                 *)                             subarch=$(probe_arm_arch) ;;
3010             esac
3011         ;;
3012     esac
3013
3014     case "$subarch" in
3015         armv5t*)    enable fast_clz                ;;
3016         armv[6-8]*) enable fast_clz fast_unaligned ;;
3017     esac
3018
3019 elif enabled avr32; then
3020
3021     case $cpu in
3022         ap7[02]0[0-2])
3023             subarch="avr32_ap"
3024             cpuflags="-mpart=$cpu"
3025         ;;
3026         ap)
3027             subarch="avr32_ap"
3028             cpuflags="-march=$cpu"
3029         ;;
3030         uc3[ab]*)
3031             subarch="avr32_uc"
3032             cpuflags="-mcpu=$cpu"
3033         ;;
3034         uc)
3035             subarch="avr32_uc"
3036             cpuflags="-march=$cpu"
3037         ;;
3038     esac
3039
3040 elif enabled bfin; then
3041
3042     cpuflags="-mcpu=$cpu"
3043
3044 elif enabled mips; then
3045
3046     cpuflags="-march=$cpu"
3047
3048     case $cpu in
3049         24kc)
3050             disable mipsfpu
3051             disable mipsdspr1
3052             disable mipsdspr2
3053         ;;
3054         24kf*)
3055             disable mipsdspr1
3056             disable mipsdspr2
3057         ;;
3058         24kec|34kc|1004kc)
3059             disable mipsfpu
3060             disable mipsdspr2
3061         ;;
3062         24kef*|34kf*|1004kf*)
3063             disable mipsdspr2
3064         ;;
3065         74kc)
3066             disable mipsfpu
3067         ;;
3068     esac
3069
3070 elif enabled ppc; then
3071
3072     case $(tolower $cpu) in
3073         601|ppc601|powerpc601)
3074             cpuflags="-mcpu=601"
3075             disable altivec
3076         ;;
3077         603*|ppc603*|powerpc603*)
3078             cpuflags="-mcpu=603"
3079             disable altivec
3080         ;;
3081         604*|ppc604*|powerpc604*)
3082             cpuflags="-mcpu=604"
3083             disable altivec
3084         ;;
3085         g3|75*|ppc75*|powerpc75*)
3086             cpuflags="-mcpu=750"
3087             disable altivec
3088         ;;
3089         g4|745*|ppc745*|powerpc745*)
3090             cpuflags="-mcpu=7450"
3091         ;;
3092         74*|ppc74*|powerpc74*)
3093             cpuflags="-mcpu=7400"
3094         ;;
3095         g5|970|ppc970|powerpc970)
3096             cpuflags="-mcpu=970"
3097         ;;
3098         power[3-7]*)
3099             cpuflags="-mcpu=$cpu"
3100         ;;
3101         cell)
3102             cpuflags="-mcpu=cell"
3103             enable ldbrx
3104         ;;
3105         e500mc)
3106             cpuflags="-mcpu=e500mc"
3107             disable altivec
3108         ;;
3109         e500v2)
3110             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3111             disable altivec
3112         ;;
3113         e500)
3114             cpuflags="-mcpu=8540 -mhard-float"
3115             disable altivec
3116         ;;
3117     esac
3118
3119 elif enabled sparc; then
3120
3121     case $cpu in
3122         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3123             cpuflags="-mcpu=$cpu"
3124             disable vis
3125         ;;
3126         ultrasparc*|niagara[234])
3127             cpuflags="-mcpu=$cpu"
3128         ;;
3129     esac
3130
3131 elif enabled x86; then
3132
3133     case $cpu in
3134         i[345]86|pentium)
3135             cpuflags="-march=$cpu"
3136             disable mmx
3137         ;;
3138         # targets that do NOT support conditional mov (cmov)
3139         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3140             cpuflags="-march=$cpu"
3141             disable cmov
3142         ;;
3143         # targets that do support conditional mov (cmov)
3144         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3145             cpuflags="-march=$cpu"
3146             enable cmov
3147             enable fast_cmov
3148         ;;
3149         # targets that do support conditional mov but on which it's slow
3150         pentium4|pentium4m|prescott|nocona)
3151             cpuflags="-march=$cpu"
3152             enable cmov
3153             disable fast_cmov
3154         ;;
3155     esac
3156
3157 fi
3158
3159 if [ "$cpu" != generic ]; then
3160     add_cflags  $cpuflags
3161     add_asflags $cpuflags
3162 fi
3163
3164 # compiler sanity check
3165 check_exec <<EOF
3166 int main(void){ return 0; }
3167 EOF
3168 if test "$?" != 0; then
3169     echo "$cc is unable to create an executable file."
3170     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3171         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3172         echo "Only do this if you know what cross compiling means."
3173     fi
3174     die "C compiler test failed."
3175 fi
3176
3177 add_cppflags -D_ISOC99_SOURCE
3178 add_cxxflags -D__STDC_CONSTANT_MACROS
3179 check_cflags -std=c99
3180 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3181 #include <stdlib.h>
3182 EOF
3183 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3184 #include <stdlib.h>
3185 EOF
3186
3187 check_host_cflags -std=c99
3188 check_host_cflags -Wall
3189
3190 check_64bit(){
3191     arch32=$1
3192     arch64=$2
3193     expr=$3
3194     check_code cc "" "int test[2*($expr) - 1]" &&
3195         subarch=$arch64 || subarch=$arch32
3196 }
3197
3198 case "$arch" in
3199     aarch64|alpha|ia64)
3200         spic=$shared
3201     ;;
3202     mips)
3203         check_64bit mips mips64 '_MIPS_SIM > 1'
3204         spic=$shared
3205     ;;
3206     parisc)
3207         check_64bit parisc parisc64 'sizeof(void *) > 4'
3208         spic=$shared
3209     ;;
3210     ppc)
3211         check_64bit ppc ppc64 'sizeof(void *) > 4'
3212         spic=$shared
3213     ;;
3214     sparc)
3215         check_64bit sparc sparc64 'sizeof(void *) > 4'
3216         spic=$shared
3217     ;;
3218     x86)
3219         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3220         if test "$subarch" = "x86_64"; then
3221             spic=$shared
3222         fi
3223     ;;
3224     ppc)
3225         check_cc <<EOF && subarch="ppc64"
3226         int test[(int)sizeof(char*) - 7];
3227 EOF
3228     ;;
3229 esac
3230
3231 enable $subarch
3232 enabled spic && enable pic
3233
3234 # OS specific
3235 case $target_os in
3236     haiku)
3237         prefix_default="/boot/common"
3238         network_extralibs="-lnetwork"
3239         host_libs=
3240         ;;
3241     sunos)
3242         FFSERVERLDFLAGS=""
3243         SHFLAGS='-shared -Wl,-h,$$(@F)'
3244         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3245         network_extralibs="-lsocket -lnsl"
3246         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3247         # When using suncc to build, the Solaris linker will mark
3248         # an executable with each instruction set encountered by
3249         # the Solaris assembler.  As our libraries contain their own
3250         # guards for processor-specific code, instead suppress
3251         # generation of the HWCAPS ELF section on Solaris x86 only.
3252         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3253         nm_default='nm -P -g'
3254         ;;
3255     netbsd)
3256         disable symver
3257         oss_indev_extralibs="-lossaudio"
3258         oss_outdev_extralibs="-lossaudio"
3259         enabled gcc || check_ldflags -Wl,-zmuldefs
3260         ;;
3261     openbsd|bitrig)
3262         disable symver
3263         SHFLAGS='-shared'
3264         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3265         SLIB_INSTALL_LINKS=
3266         oss_indev_extralibs="-lossaudio"
3267         oss_outdev_extralibs="-lossaudio"
3268         ;;
3269     dragonfly)
3270         disable symver
3271         ;;
3272     freebsd)
3273         ;;
3274     bsd/os)
3275         add_extralibs -lpoll -lgnugetopt
3276         strip="strip -d"
3277         ;;
3278     darwin)
3279         gas="gas-preprocessor.pl $cc"
3280         enabled ppc && add_asflags -force_cpusubtype_ALL
3281         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3282         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3283         strip="${strip} -x"
3284         add_ldflags -Wl,-dynamic,-search_paths_first
3285         SLIBSUF=".dylib"
3286         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3287         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3288         FFSERVERLDFLAGS=-Wl,-bind_at_load
3289         objformat="macho"
3290         enabled x86_64 && objformat="macho64"
3291         enabled_any pic shared ||
3292             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3293         ;;
3294     mingw32*)
3295         if test $target_os = "mingw32ce"; then
3296             disable network
3297         else
3298             target_os=mingw32
3299         fi
3300         LIBTARGET=i386
3301         if enabled x86_64; then
3302             LIBTARGET="i386:x86-64"
3303         elif enabled arm; then
3304             LIBTARGET=arm-wince
3305         fi
3306         shlibdir_default="$bindir_default"
3307         SLIBPREF=""
3308         SLIBSUF=".dll"
3309         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3310         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3311         dlltool="${cross_prefix}dlltool"
3312         if check_cmd lib.exe -list; then
3313             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3314             if enabled x86_64; then
3315                 LIBTARGET=x64
3316             fi
3317         elif check_cmd $dlltool --version; then
3318             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3319         fi
3320         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3321         SLIB_INSTALL_LINKS=
3322         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3323         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3324         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3325         objformat="win32"
3326         ranlib=:
3327         enable dos_paths
3328         ;;
3329     win32|win64)
3330         if enabled shared; then
3331             # Link to the import library instead of the normal static library
3332             # for shared libs.
3333             LD_LIB='%.lib'
3334             # Cannot build shared and static libraries at the same time with
3335             # MSVC.
3336             disable static
3337         fi
3338         shlibdir_default="$bindir_default"
3339         SLIBPREF=""
3340         SLIBSUF=".dll"
3341         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3342         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3343         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3344         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3345         SLIB_INSTALL_LINKS=
3346         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3347         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3348         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3349         objformat="win32"
3350         ranlib=:
3351         enable dos_paths
3352         ;;
3353     cygwin*)
3354         target_os=cygwin
3355         shlibdir_default="$bindir_default"
3356         SLIBPREF="cyg"
3357         SLIBSUF=".dll"
3358         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3359         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3360         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3361         SLIB_INSTALL_LINKS=
3362         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3363         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3364         objformat="win32"
3365         enable dos_paths
3366         ;;
3367     *-dos|freedos|opendos)
3368         network_extralibs="-lsocket"
3369         objformat="coff"
3370         enable dos_paths
3371         add_cppflags -U__STRICT_ANSI__
3372         ;;
3373     linux)
3374         enable dv1394
3375         ;;
3376     irix*)
3377         target_os=irix
3378         ranlib="echo ignoring ranlib"
3379         ;;
3380     os/2*)
3381         strip="lxlite -CS"
3382         ln_s="cp -f"
3383         objformat="aout"
3384         add_cppflags -D_GNU_SOURCE
3385         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3386         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3387         FFSERVERLDFLAGS=""
3388         LIBSUF="_s.a"
3389         SLIBPREF=""
3390         SLIBSUF=".dll"
3391         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3392         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3393         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3394             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3395             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3396             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3397             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3398             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3399         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3400             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3401         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3402         enable dos_paths
3403         enable_weak os2threads
3404         ;;
3405     gnu/kfreebsd)
3406         add_cppflags -D_BSD_SOURCE
3407         ;;
3408     gnu)
3409         ;;
3410     qnx)
3411         add_cppflags -D_QNX_SOURCE
3412         network_extralibs="-lsocket"
3413         ;;
3414     symbian)
3415         SLIBSUF=".dll"
3416         enable dos_paths
3417         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3418         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3419         add_ldflags -Wl,--target1-abs,--no-undefined \
3420                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3421                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3422         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3423                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3424                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3425         ;;
3426     osf1)
3427         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3428         FFSERVERLDFLAGS=
3429         ;;
3430     minix)
3431         ;;
3432     plan9)
3433         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3434                      -D_REENTRANT_SOURCE        \
3435                      -D_RESEARCH_SOURCE         \
3436                      -DFD_SETSIZE=96            \
3437                      -DHAVE_SOCK_OPTS
3438         add_compat strtod.o strtod=avpriv_strtod
3439         network_extralibs='-lbsd'
3440         exeobjs=compat/plan9/main.o
3441         disable ffserver
3442         cp_f='cp'
3443         ;;
3444     none)
3445         ;;
3446     *)
3447         die "Unknown OS '$target_os'."
3448         ;;
3449 esac
3450
3451 # determine libc flavour
3452
3453 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3454 if check_cpp_condition features.h "defined __UCLIBC__"; then
3455     libc_type=uclibc
3456     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3457 elif check_cpp_condition features.h "defined __GLIBC__"; then
3458     libc_type=glibc
3459     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3460 # MinGW headers can be installed on Cygwin, so check for newlib first.
3461 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3462     libc_type=newlib
3463     add_cppflags -U__STRICT_ANSI__
3464 elif check_header _mingw.h; then
3465     libc_type=mingw
3466     check_cpp_condition _mingw.h \
3467         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3468             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3469         die "ERROR: MinGW runtime version must be >= 3.15."
3470     add_cppflags -U__STRICT_ANSI__
3471     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3472             __MINGW64_VERSION_MAJOR < 3"; then
3473         add_compat msvcrt/snprintf.o
3474         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3475     fi
3476 elif check_func_headers stdlib.h _get_doserrno; then
3477     libc_type=msvcrt
3478     add_compat strtod.o strtod=avpriv_strtod
3479     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3480                                  _snprintf=avpriv_snprintf  \
3481                                  vsnprintf=avpriv_vsnprintf
3482 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3483     libc_type=klibc
3484 fi
3485
3486 test -n "$libc_type" && enable $libc_type
3487
3488 # hacks for compiler/libc/os combinations
3489
3490 if enabled_all tms470 glibc; then
3491     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3492     add_cppflags -D__USER_LABEL_PREFIX__=
3493     add_cppflags -D__builtin_memset=memset
3494     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3495     add_cflags   -pds=48    # incompatible redefinition of macro
3496 fi
3497
3498 if enabled_all ccc glibc; then
3499     add_ldflags -Wl,-z,now  # calls to libots crash without this
3500 fi
3501
3502 esc(){
3503     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3504 }
3505
3506 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3507
3508 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3509
3510 set_default $PATHS_LIST
3511 set_default nm
3512
3513 # we need to build at least one lib type
3514 if ! enabled_any static shared; then
3515     cat <<EOF
3516 At least one library type must be built.
3517 Specify --enable-static to build the static libraries or --enable-shared to
3518 build the shared libraries as well. To only build the shared libraries specify
3519 --disable-static in addition to --enable-shared.
3520 EOF
3521     exit 1;
3522 fi
3523
3524 die_license_disabled() {
3525     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3526 }
3527
3528 die_license_disabled_gpl() {
3529     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3530 }
3531
3532 die_license_disabled gpl libcdio
3533 die_license_disabled gpl libutvideo
3534 die_license_disabled gpl libx264
3535 die_license_disabled gpl libxavs
3536 die_license_disabled gpl libxvid
3537 die_license_disabled gpl x11grab
3538
3539 die_license_disabled nonfree libaacplus
3540 die_license_disabled nonfree libfaac
3541 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3542 enabled gpl && die_license_disabled_gpl nonfree openssl
3543
3544 die_license_disabled version3 libopencore_amrnb
3545 die_license_disabled version3 libopencore_amrwb
3546 die_license_disabled version3 libvo_aacenc
3547 die_license_disabled version3 libvo_amrwbenc
3548
3549 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3550
3551 disabled optimizations || check_cflags -fomit-frame-pointer
3552
3553 enable_pic() {
3554     enable pic
3555     add_cppflags -DPIC
3556     add_cflags   -fPIC
3557     add_asflags  -fPIC
3558 }
3559
3560 enabled pic && enable_pic
3561
3562 check_cc <<EOF || die "Symbol mangling check failed."
3563 int ff_extern;
3564 EOF
3565 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3566 extern_prefix=${sym%%ff_extern*}
3567
3568 check_cc <<EOF && enable_weak inline_asm
3569 void foo(void) { __asm__ volatile ("" ::); }
3570 EOF
3571
3572 _restrict=
3573 for restrict_keyword in restrict __restrict__ __restrict; do
3574     check_cc <<EOF && _restrict=$restrict_keyword && break
3575 void foo(char * $restrict_keyword p);
3576 EOF
3577 done
3578
3579 check_cc <<EOF && enable attribute_packed
3580 struct { int x; } __attribute__((packed)) x;
3581 EOF
3582
3583 check_cc <<EOF && enable attribute_may_alias
3584 union { int x; } __attribute__((may_alias)) x;
3585 EOF
3586
3587 check_cc <<EOF || die "endian test failed"
3588 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3589 EOF
3590 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3591
3592 if enabled alpha; then
3593
3594     check_cflags -mieee
3595
3596 elif enabled arm; then
3597
3598     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3599 float func(float a, float b){ return a+b; }
3600 EOF
3601
3602     enabled thumb && check_cflags -mthumb || check_cflags -marm
3603     nogas=die
3604
3605     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3606         enable vfp_args
3607     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3608         case "${cross_prefix:-$cc}" in
3609             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3610             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3611 __asm__ (".eabi_attribute 28, 1");
3612 int main(void) { return 0; }
3613 EOF
3614         esac
3615         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3616     fi
3617
3618     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3619     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3620     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3621     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3622     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3623     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3624
3625     [ $target_os = linux ] ||
3626         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3627             $ARCH_EXT_LIST_ARM
3628
3629     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3630     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3631
3632     enabled_all armv6t2 shared !pic && enable_pic
3633
3634 elif enabled mips; then
3635
3636     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3637     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3638      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3639     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3640      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3641     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3642      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3643     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3644      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3645
3646 elif enabled parisc; then
3647
3648     if enabled gcc; then
3649         case $($cc -dumpversion) in
3650             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3651         esac
3652     fi
3653
3654 elif enabled ppc; then
3655
3656     enable local_aligned_8 local_aligned_16
3657
3658     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3659     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3660     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3661     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3662
3663     # AltiVec flags: The FSF version of GCC differs from the Apple version
3664     if enabled altivec; then
3665         nogas=warn
3666         check_cflags -maltivec -mabi=altivec &&
3667         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3668         check_cflags -faltivec
3669
3670         # check if our compiler supports Motorola AltiVec C API
3671         check_cc <<EOF || disable altivec
3672 $inc_altivec_h
3673 int main(void) {
3674     vector signed int v1 = (vector signed int) { 0 };
3675     vector signed int v2 = (vector signed int) { 1 };
3676     v1 = vec_add(v1, v2);
3677     return 0;
3678 }
3679 EOF
3680
3681         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3682     fi
3683
3684 elif enabled sparc; then
3685
3686     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3687
3688 elif enabled x86; then
3689
3690     check_builtin rdtsc    intrin.h   "__rdtsc()"
3691     check_builtin mm_empty mmintrin.h "_mm_empty()"
3692
3693     enable local_aligned_8 local_aligned_16
3694
3695     # check whether EBP is available on x86
3696     # As 'i' is stored on the stack, this program will crash
3697     # if the base pointer is used to access it because the
3698     # base pointer is cleared in the inline assembly code.
3699     check_exec_crash <<EOF && enable ebp_available
3700 volatile int i=0;
3701 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3702 return i;
3703 EOF
3704
3705     # check whether EBX is available on x86
3706     check_inline_asm ebx_available '""::"b"(0)' &&
3707         check_inline_asm ebx_available '"":::"%ebx"'
3708
3709     # check whether xmm clobbers are supported
3710     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3711
3712     # check whether binutils is new enough to compile SSSE3/MMXEXT
3713     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3714     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3715
3716     if ! disabled_any asm mmx yasm; then
3717         if check_cmd $yasmexe --version; then
3718             enabled x86_64 && yasm_extra="-m amd64"
3719             yasm_debug="-g dwarf2"
3720         elif check_cmd nasm -v; then
3721             yasmexe=nasm
3722             yasm_debug="-g -F dwarf"
3723             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3724         fi
3725
3726         YASMFLAGS="-f $objformat $yasm_extra"
3727         enabled pic               && append YASMFLAGS "-DPIC"
3728         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3729         case "$objformat" in
3730             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3731         esac
3732
3733         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3734             die "yasm not found, use --disable-yasm for a crippled build"
3735         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3736         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3737         check_yasm "CPU amdnop" && enable cpunop
3738     fi
3739
3740     case "$cpu" in
3741         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3742             disable fast_clz
3743         ;;
3744     esac
3745
3746 fi
3747
3748 if enabled asm; then
3749     as=${gas:=$as}
3750     check_as <<EOF && enable gnu_as || \
3751         $nogas "GNU assembler not found, install gas-preprocessor"
3752 .macro m n
3753 \n: .int 0
3754 .endm
3755 m x
3756 EOF
3757 fi
3758
3759 check_ldflags -Wl,--as-needed
3760
3761 if check_func dlopen; then
3762     ldl=
3763 elif check_func dlopen -ldl; then
3764     ldl=-ldl
3765 fi
3766
3767 if ! disabled network; then
3768     check_type "sys/types.h sys/socket.h" socklen_t
3769     check_type netdb.h "struct addrinfo"
3770     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3771     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3772     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3773     check_type netinet/in.h "struct sockaddr_in6"
3774     check_type poll.h "struct pollfd"
3775     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3776     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3777     check_type netinet/sctp.h "struct sctp_event_subscribe"
3778     check_func getaddrinfo $network_extralibs
3779     check_func getservbyport $network_extralibs
3780     # Prefer arpa/inet.h over winsock2
3781     if check_header arpa/inet.h ; then
3782         check_func closesocket
3783     elif check_header winsock2.h ; then
3784         check_func_headers winsock2.h closesocket -lws2 &&
3785             network_extralibs="-lws2" ||
3786         { check_func_headers winsock2.h closesocket -lws2_32 &&
3787             network_extralibs="-lws2_32"; }
3788         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3789         check_type ws2tcpip.h socklen_t
3790         check_type ws2tcpip.h "struct addrinfo"
3791         check_type ws2tcpip.h "struct group_source_req"
3792         check_type ws2tcpip.h "struct ip_mreq_source"
3793         check_type ws2tcpip.h "struct ipv6_mreq"
3794         check_type winsock2.h "struct pollfd"
3795         check_type ws2tcpip.h "struct sockaddr_in6"
3796         check_type ws2tcpip.h "struct sockaddr_storage"
3797         check_struct winsock2.h "struct sockaddr" sa_len
3798     else
3799         disable network
3800     fi
3801 fi
3802
3803 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3804 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3805
3806 check_func  access
3807 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3808 check_func  fcntl
3809 check_func  fork
3810 check_func  gethrtime
3811 check_func  getopt
3812 check_func  getrusage
3813 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3814 check_func  gettimeofday
3815 check_func  inet_aton $network_extralibs
3816 check_func  isatty
3817 check_func  localtime_r
3818 check_func  ${malloc_prefix}memalign            && enable memalign
3819 check_func  mkstemp
3820 check_func  mmap
3821 check_func  mprotect
3822 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3823 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3824 check_func  setrlimit
3825 check_func  strerror_r
3826 check_func  sched_getaffinity
3827 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3828 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3829 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3830 check_func  sysconf
3831 check_func  sysctl
3832 check_func  usleep
3833 check_func_headers conio.h kbhit
3834 check_func_headers windows.h PeekNamedPipe
3835 check_func_headers io.h setmode
3836 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3837 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3838 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3839 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3840 check_func_headers windows.h GetProcessAffinityMask
3841 check_func_headers windows.h GetProcessTimes
3842 check_func_headers windows.h GetSystemTimeAsFileTime
3843 check_func_headers windows.h MapViewOfFile
3844 check_func_headers windows.h SetConsoleTextAttribute
3845 check_func_headers windows.h Sleep
3846 check_func_headers windows.h VirtualAlloc
3847 check_func_headers glob.h glob
3848
3849 check_header direct.h
3850 check_header dlfcn.h
3851 check_header dxva.h
3852 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3853 check_header io.h
3854 check_header libcrystalhd/libcrystalhd_if.h
3855 check_header malloc.h
3856 check_header poll.h
3857 check_header sys/mman.h
3858 check_header sys/param.h
3859 check_header sys/resource.h
3860 check_header sys/select.h
3861 check_header sys/time.h
3862 check_header termios.h
3863 check_header unistd.h
3864 check_header vdpau/vdpau.h
3865 check_header vdpau/vdpau_x11.h
3866 check_header VideoDecodeAcceleration/VDADecoder.h
3867 check_header windows.h
3868 check_header X11/extensions/XvMClib.h
3869 check_header asm/types.h
3870
3871 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3872 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3873
3874 if ! disabled w32threads && ! enabled pthreads; then
3875     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3876 fi
3877
3878 # check for some common methods of building with pthread support
3879 # do this before the optional library checks as some of them require pthreads
3880 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3881     enable pthreads
3882     if check_func pthread_create; then
3883         :
3884     elif check_func pthread_create -pthread; then
3885         add_cflags -pthread
3886         add_extralibs -pthread
3887     elif check_func pthread_create -pthreads; then
3888         add_cflags -pthreads
3889         add_extralibs -pthreads
3890     elif check_func pthread_create -lpthreadGC2; then
3891         add_extralibs -lpthreadGC2
3892     elif ! check_lib pthread.h pthread_create -lpthread; then
3893         disable pthreads
3894     fi
3895 fi
3896
3897 for thread in $THREADS_LIST; do
3898     if enabled $thread; then
3899         test -n "$thread_type" &&
3900             die "ERROR: Only one thread type must be selected." ||
3901             thread_type="$thread"
3902     fi
3903 done
3904
3905 if enabled pthreads; then
3906   check_func pthread_cancel
3907 fi
3908
3909 check_lib math.h sin -lm && LIBM="-lm"
3910 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3911 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3912
3913 atan2f_args=2
3914 ldexpf_args=2
3915 powf_args=2
3916
3917 for func in $MATH_FUNCS; do
3918     eval check_mathfunc $func \${${func}_args:-1}
3919 done
3920
3921 # these are off by default, so fail if requested and not available
3922 enabled avisynth   && { { check_lib2 "windows.h" LoadLibrary; } ||
3923                         { check_lib2 "dlfcn.h" dlopen -ldl; } ||
3924                         die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
3925 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3926 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3927 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3928 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3929 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3930 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3931 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3932 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3933                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3934                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3935 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3936 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3937 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3938 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"
3939 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3940 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3941 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3942                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3943                         done || die "ERROR: libgsm not found"; }
3944 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3945 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3946 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3947 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3948 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3949 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3950 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3951 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3952                          check_lib openjpeg.h opj_version -lopenjpeg ||
3953                          die "ERROR: libopenjpeg not found"; }
3954 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3955 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3956 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3957 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3958 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3959 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3960 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3961     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3962     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3963 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3964 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3965                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3966                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3967 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3968 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3969 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3970 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3971 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3972 enabled libvpx     && {
3973     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3974                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3975     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3976                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3977     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3978     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3979 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3980                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3981                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3982 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3983 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3984 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3985                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3986                         die "ERROR: openal not found"; } &&
3987                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3988                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3989 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3990                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3991                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3992                         die "ERROR: openssl not found"; }
3993
3994 if enabled gnutls; then
3995     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3996     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3997 fi
3998
3999 # libdc1394 check
4000 if enabled libdc1394; then
4001     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4002         enable libdc1394_2; } ||
4003     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4004         enable libdc1394_1; } ||
4005     die "ERROR: No version of libdc1394 found "
4006 fi
4007
4008 SDL_CONFIG="${cross_prefix}sdl-config"
4009 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4010     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4011     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4012     enable sdl
4013 else
4014   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4015     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4016     sdl_libs=$("${SDL_CONFIG}" --libs)
4017     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4018     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4019     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4020     enable sdl
4021   fi
4022 fi
4023 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4024
4025 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4026 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4027 perl --version > /dev/null 2>&1 && enable perl || disable perl
4028 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4029 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4030
4031 check_header linux/fb.h
4032 check_header linux/videodev.h
4033 check_header linux/videodev2.h
4034 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4035
4036 check_header sys/videoio.h
4037
4038 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4039 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4040 # w32api 3.12 had it defined wrong
4041 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4042
4043 check_type "dshow.h" IBaseFilter
4044
4045 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4046 { check_header dev/bktr/ioctl_meteor.h &&
4047   check_header dev/bktr/ioctl_bt848.h; } ||
4048 { check_header machine/ioctl_meteor.h &&
4049   check_header machine/ioctl_bt848.h; } ||
4050 { check_header dev/video/meteor/ioctl_meteor.h &&
4051   check_header dev/video/bktr/ioctl_bt848.h; } ||
4052 check_header dev/ic/bt8xx.h
4053
4054 check_header sndio.h
4055 if check_struct sys/soundcard.h audio_buf_info bytes; then
4056     enable_safe sys/soundcard.h
4057 else
4058     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4059     #include <sys/soundcard.h>
4060     audio_buf_info abc;
4061 EOF
4062 fi
4063 check_header soundcard.h
4064
4065 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4066
4067 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4068     check_func jack_port_get_latency_range -ljack
4069
4070 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4071
4072 if enabled libcdio; then
4073     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4074 fi
4075
4076 enabled x11grab                                           &&
4077 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4078 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4079 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4080
4081 if ! disabled vaapi; then
4082     check_lib va/va.h vaInitialize -lva && {
4083         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4084         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4085     } || disable vaapi
4086 fi
4087
4088 enabled vdpau &&
4089     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4090     disable vdpau
4091
4092 # Funny iconv installations are not unusual, so check it after all flags have been set
4093 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4094
4095 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4096 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
4097 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"
4098
4099 # add some useful compiler flags if supported
4100 check_cflags -Wdeclaration-after-statement
4101 check_cflags -Wall
4102 check_cflags -Wno-parentheses
4103 check_cflags -Wno-switch
4104 check_cflags -Wno-format-zero-length
4105 check_cflags -Wdisabled-optimization
4106 check_cflags -Wpointer-arith
4107 check_cflags -Wredundant-decls
4108 check_cflags -Wno-pointer-sign
4109 check_cflags -Wwrite-strings
4110 check_cflags -Wtype-limits
4111 check_cflags -Wundef
4112 check_cflags -Wmissing-prototypes
4113 check_cflags -Wno-pointer-to-int-cast
4114 check_cflags -Wstrict-prototypes
4115 enabled extra_warnings && check_cflags -Winline
4116
4117 # add some linker flags
4118 check_ldflags -Wl,--warn-common
4119 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4120 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4121
4122 enabled xmm_clobber_test &&
4123     check_ldflags -Wl,--wrap,avcodec_open2              \
4124                   -Wl,--wrap,avcodec_decode_audio4      \
4125                   -Wl,--wrap,avcodec_decode_video2      \
4126                   -Wl,--wrap,avcodec_decode_subtitle2   \
4127                   -Wl,--wrap,avcodec_encode_audio2      \
4128                   -Wl,--wrap,avcodec_encode_video       \
4129                   -Wl,--wrap,avcodec_encode_subtitle    \
4130                   -Wl,--wrap,sws_scale ||
4131     disable xmm_clobber_test
4132
4133 echo "X{};" > $TMPV
4134 if test_ldflags -Wl,--version-script,$TMPV; then
4135     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4136     check_cc <<EOF && enable symver_asm_label
4137 void ff_foo(void) __asm__ ("av_foo@VERSION");
4138 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4139 EOF
4140     check_cc <<EOF && enable symver_gnu_asm
4141 __asm__(".symver ff_foo,av_foo@VERSION");
4142 void ff_foo(void) {}
4143 EOF
4144 fi
4145
4146 if [ -z "$optflags" ]; then
4147     if enabled small; then
4148         optflags=$cflags_size
4149     elif enabled optimizations; then
4150         optflags=$cflags_speed
4151     else
4152         optflags=$cflags_noopt
4153     fi
4154 fi
4155
4156 check_optflags(){
4157     check_cflags "$@"
4158     enabled lto && check_ldflags "$@"
4159 }
4160
4161
4162 if enabled lto; then
4163     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4164     check_cflags  -flto
4165     check_ldflags -flto $cpuflags
4166 fi
4167
4168 check_optflags $optflags
4169 check_optflags -fno-math-errno
4170 check_optflags -fno-signed-zeros
4171
4172 enabled ftrapv && check_cflags -ftrapv
4173
4174 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4175 int x;
4176 EOF
4177
4178
4179 if enabled icc; then
4180     # Just warnings, no remarks
4181     check_cflags -w1
4182     # -wd: Disable following warnings
4183     # 144, 167, 556: -Wno-pointer-sign
4184     # 188: enumerated type mixed with another type
4185     # 1292: attribute "foo" ignored
4186     # 1419: external declaration in primary source file
4187     # 10006: ignoring unknown option -fno-signed-zeros
4188     # 10148: ignoring unknown option -Wno-parentheses
4189     # 10156: ignoring option '-W'; no argument required
4190     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4191     # 11030: Warning unknown option --as-needed
4192     # 10156: ignoring option '-export'; no argument required
4193     check_ldflags -wd10156,11030
4194     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4195     enable ebp_available
4196     if enabled x86_32; then
4197         icc_version=$($cc -dumpversion)
4198         test ${icc_version%%.*} -ge 11 &&
4199             check_cflags -falign-stack=maintain-16-byte ||
4200             disable aligned_stack
4201     fi
4202 elif enabled ccc; then
4203     # disable some annoying warnings
4204     add_cflags -msg_disable bitnotint
4205     add_cflags -msg_disable mixfuncvoid
4206     add_cflags -msg_disable nonstandcast
4207     add_cflags -msg_disable unsupieee
4208 elif enabled gcc; then
4209     check_optflags -fno-tree-vectorize
4210     check_cflags -Werror=implicit-function-declaration
4211     check_cflags -Werror=missing-prototypes
4212     check_cflags -Werror=return-type
4213     check_cflags -Werror=vla
4214 elif enabled llvm_gcc; then
4215     check_cflags -mllvm -stack-alignment=16
4216 elif enabled clang; then
4217     check_cflags -mllvm -stack-alignment=16
4218     check_cflags -Qunused-arguments
4219     check_cflags -Werror=implicit-function-declaration
4220     check_cflags -Werror=missing-prototypes
4221     check_cflags -Werror=return-type
4222 elif enabled armcc; then
4223     # 2523: use of inline assembler is deprecated
4224     add_cflags -W${armcc_opt},--diag_suppress=2523
4225     add_cflags -W${armcc_opt},--diag_suppress=1207
4226     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4227     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4228     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4229     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4230 elif enabled tms470; then
4231     add_cflags -pds=824 -pds=837
4232 elif enabled pathscale; then
4233     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4234 elif enabled msvc; then
4235     enabled x86_32 && disable aligned_stack
4236 fi
4237
4238 case $target_os in
4239     osf1)
4240         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4241     ;;
4242     plan9)
4243         add_cppflags -Dmain=plan9_main
4244     ;;
4245 esac
4246
4247 enabled_any $THREADS_LIST      && enable threads
4248 enable frame_thread_encoder
4249
4250 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4251
4252 check_deps $CONFIG_LIST       \
4253            $CONFIG_EXTRA      \
4254            $HAVE_LIST         \
4255            $ALL_COMPONENTS    \
4256
4257
4258 if test $target_os = "haiku"; then
4259     disable memalign
4260     disable posix_memalign
4261 fi
4262
4263 ! enabled_any memalign posix_memalign aligned_malloc &&
4264     enabled_any $need_memalign && enable memalign_hack
4265
4266 # add_dep lib dep
4267 # -> enable ${lib}_deps_${dep}
4268 # -> add $dep to ${lib}_deps only once
4269 add_dep() {
4270     lib=$1
4271     dep=$2
4272     enabled "${lib}_deps_${dep}" && return 0
4273     enable  "${lib}_deps_${dep}"
4274     prepend "${lib}_deps" $dep
4275 }
4276
4277 # merge deps lib components
4278 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4279 merge_deps() {
4280     lib=$1
4281     shift
4282     for comp in $*; do
4283         enabled $comp || continue
4284         eval "dep=\"\$${comp}_deps\""
4285         for d in $dep; do
4286             add_dep $lib $d
4287         done
4288     done
4289 }
4290
4291 merge_deps libavfilter $FILTER_LIST
4292
4293 echo "install prefix            $prefix"
4294 echo "source path               $source_path"
4295 echo "C compiler                $cc"
4296 echo "ARCH                      $arch ($cpu)"
4297 if test "$build_suffix" != ""; then
4298     echo "build suffix              $build_suffix"
4299 fi
4300 if test "$progs_suffix" != ""; then
4301     echo "progs suffix              $progs_suffix"
4302 fi
4303 if test "$extra_version" != ""; then
4304     echo "version string suffix     $extra_version"
4305 fi
4306 echo "big-endian                ${bigendian-no}"
4307 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4308 if enabled x86; then
4309     echo "${yasmexe}                      ${yasm-no}"
4310     echo "MMX enabled               ${mmx-no}"
4311     echo "MMXEXT enabled            ${mmxext-no}"
4312     echo "3DNow! enabled            ${amd3dnow-no}"
4313     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4314     echo "SSE enabled               ${sse-no}"
4315     echo "SSSE3 enabled             ${ssse3-no}"
4316     echo "AVX enabled               ${avx-no}"
4317     echo "FMA4 enabled              ${fma4-no}"
4318     echo "CMOV enabled              ${cmov-no}"
4319     echo "CMOV is fast              ${fast_cmov-no}"
4320     echo "EBX available             ${ebx_available-no}"
4321     echo "EBP available             ${ebp_available-no}"
4322 fi
4323 if enabled arm; then
4324     echo "ARMv5TE enabled           ${armv5te-no}"
4325     echo "ARMv6 enabled             ${armv6-no}"
4326     echo "ARMv6T2 enabled           ${armv6t2-no}"
4327     echo "VFP enabled               ${vfp-no}"
4328     echo "NEON enabled              ${neon-no}"
4329     echo "THUMB enabled             ${thumb-no}"
4330 fi
4331 if enabled mips; then
4332     echo "MIPS FPU enabled          ${mipsfpu-no}"
4333     echo "MIPS32R2 enabled          ${mips32r2-no}"
4334     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4335     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4336 fi
4337 if enabled ppc; then
4338     echo "AltiVec enabled           ${altivec-no}"
4339     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4340     echo "dcbzl available           ${dcbzl-no}"
4341 fi
4342 if enabled sparc; then
4343     echo "VIS enabled               ${vis-no}"
4344 fi
4345 echo "debug symbols             ${debug-no}"
4346 echo "strip symbols             ${stripping-no}"
4347 echo "optimize for size         ${small-no}"
4348 echo "optimizations             ${optimizations-no}"
4349 echo "static                    ${static-no}"
4350 echo "shared                    ${shared-no}"
4351 echo "postprocessing support    ${postproc-no}"
4352 echo "new filter support        ${avfilter-no}"
4353 echo "network support           ${network-no}"
4354 echo "threading support         ${thread_type-no}"
4355 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4356 echo "SDL support               ${sdl-no}"
4357 echo "texi2html enabled         ${texi2html-no}"
4358 echo "perl enabled              ${perl-no}"
4359 echo "pod2man enabled           ${pod2man-no}"
4360 echo "makeinfo enabled          ${makeinfo-no}"
4361 test -n "$random_seed" &&
4362     echo "random seed               ${random_seed}"
4363 echo
4364
4365 echo "External libraries:"
4366 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4367 echo
4368
4369 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4370     echo "Enabled ${type}s:"
4371     eval list=\$$(toupper $type)_LIST
4372     print_enabled '_*' $list | print_3_columns
4373     echo
4374 done
4375
4376 license="LGPL version 2.1 or later"
4377 if enabled nonfree; then
4378     license="nonfree and unredistributable"
4379 elif enabled gplv3; then
4380     license="GPL version 3 or later"
4381 elif enabled lgplv3; then
4382     license="LGPL version 3 or later"
4383 elif enabled gpl; then
4384     license="GPL version 2 or later"
4385 fi
4386
4387 echo "License: $license"
4388
4389 echo "Creating config.mak and config.h..."
4390
4391 test -e Makefile || $ln_s "$source_path/Makefile" .
4392
4393 enabled stripping || strip="echo skipping strip"
4394
4395 config_files="$TMPH config.mak"
4396
4397 cat > config.mak <<EOF
4398 # Automatically generated by configure - do not modify!
4399 ifndef FFMPEG_CONFIG_MAK
4400 FFMPEG_CONFIG_MAK=1
4401 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4402 prefix=$prefix
4403 LIBDIR=\$(DESTDIR)$libdir
4404 SHLIBDIR=\$(DESTDIR)$shlibdir
4405 INCDIR=\$(DESTDIR)$incdir
4406 BINDIR=\$(DESTDIR)$bindir
4407 DATADIR=\$(DESTDIR)$datadir
4408 MANDIR=\$(DESTDIR)$mandir
4409 SRC_PATH=$source_path
4410 ifndef MAIN_MAKEFILE
4411 SRC_PATH:=\$(SRC_PATH:.%=..%)
4412 endif
4413 CC_IDENT=$cc_ident
4414 ARCH=$arch
4415 CC=$cc
4416 CXX=$cxx
4417 AS=$as
4418 LD=$ld
4419 DEPCC=$dep_cc
4420 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4421 DEPAS=$as
4422 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4423 YASM=$yasmexe
4424 DEPYASM=$yasmexe
4425 AR=$ar
4426 ARFLAGS=$arflags
4427 AR_O=$ar_o
4428 RANLIB=$ranlib
4429 CP=cp -p
4430 LN_S=$ln_s
4431 STRIP=$strip
4432 CPPFLAGS=$CPPFLAGS
4433 CFLAGS=$CFLAGS
4434 CXXFLAGS=$CXXFLAGS
4435 ASFLAGS=$ASFLAGS
4436 AS_C=$AS_C
4437 AS_O=$AS_O
4438 CC_C=$CC_C
4439 CC_E=$CC_E
4440 CC_O=$CC_O
4441 CXX_C=$CXX_C
4442 CXX_O=$CXX_O
4443 LD_O=$LD_O
4444 LD_LIB=$LD_LIB
4445 LD_PATH=$LD_PATH
4446 DLLTOOL=$dlltool
4447 LDFLAGS=$LDFLAGS
4448 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4449 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4450 YASMFLAGS=$YASMFLAGS
4451 BUILDSUF=$build_suffix
4452 PROGSSUF=$progs_suffix
4453 FULLNAME=$FULLNAME
4454 LIBPREF=$LIBPREF
4455 LIBSUF=$LIBSUF
4456 LIBNAME=$LIBNAME
4457 SLIBPREF=$SLIBPREF
4458 SLIBSUF=$SLIBSUF
4459 EXESUF=$EXESUF
4460 EXTRA_VERSION=$extra_version
4461 CCDEP=$CCDEP
4462 CXXDEP=$CXXDEP
4463 CCDEP_FLAGS=$CCDEP_FLAGS
4464 ASDEP=$ASDEP
4465 ASDEP_FLAGS=$ASDEP_FLAGS
4466 CC_DEPFLAGS=$CC_DEPFLAGS
4467 AS_DEPFLAGS=$AS_DEPFLAGS
4468 HOSTCC=$host_cc
4469 HOSTLD=$host_ld
4470 HOSTCFLAGS=$host_cflags
4471 HOSTCPPFLAGS=$host_cppflags
4472 HOSTEXESUF=$HOSTEXESUF
4473 HOSTLDFLAGS=$host_ldflags
4474 HOSTLIBS=$host_libs
4475 DEPHOSTCC=$host_cc
4476 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4477 HOSTCCDEP=$HOSTCCDEP
4478 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4479 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4480 HOSTCC_C=$HOSTCC_C
4481 HOSTCC_O=$HOSTCC_O
4482 HOSTLD_O=$HOSTLD_O
4483 TARGET_EXEC=$target_exec
4484 TARGET_PATH=$target_path
4485 LIBS-ffplay=$sdl_libs
4486 CFLAGS-ffplay=$sdl_cflags
4487 ZLIB=$($ldflags_filter -lz)
4488 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4489 EXTRALIBS=$extralibs
4490 COMPAT_OBJS=$compat_objs
4491 EXEOBJS=$exeobjs
4492 INSTALL=$install
4493 LIBTARGET=${LIBTARGET}
4494 SLIBNAME=${SLIBNAME}
4495 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4496 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4497 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4498 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4499 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4500 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4501 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4502 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4503 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4504 NOREDZONE_FLAGS=$noredzone_flags
4505 EOF
4506
4507 get_version(){
4508     lcname=lib${1}
4509     name=$(toupper $lcname)
4510     file=$source_path/$lcname/version.h
4511     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4512     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4513     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4514     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4515     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4516 }
4517
4518 map 'get_version $v' $LIBRARY_LIST
4519
4520 cat > $TMPH <<EOF
4521 /* Automatically generated by configure - do not modify! */
4522 #ifndef FFMPEG_CONFIG_H
4523 #define FFMPEG_CONFIG_H
4524 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4525 #define FFMPEG_LICENSE "$(c_escape $license)"
4526 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4527 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4528 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4529 #define av_restrict $_restrict
4530 #define EXTERN_PREFIX "${extern_prefix}"
4531 #define EXTERN_ASM ${extern_prefix}
4532 #define SLIBSUF "$SLIBSUF"
4533 #define HAVE_MMX2 HAVE_MMXEXT
4534 EOF
4535
4536 test -n "$assert_level" &&
4537     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4538
4539 test -n "$malloc_prefix" &&
4540     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4541
4542 if enabled yasm; then
4543     append config_files $TMPASM
4544     printf '' >$TMPASM
4545 fi
4546
4547 print_config ARCH_   "$config_files" $ARCH_LIST
4548 print_config HAVE_   "$config_files" $HAVE_LIST
4549 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4550                                      $CONFIG_EXTRA      \
4551                                      $ALL_COMPONENTS    \
4552
4553 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4554 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4555
4556 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4557 cp_if_changed $TMPH config.h
4558 touch .config
4559
4560 enabled yasm && cp_if_changed $TMPASM config.asm
4561
4562 cat > $TMPH <<EOF
4563 /* Generated by ffconf */
4564 #ifndef AVUTIL_AVCONFIG_H
4565 #define AVUTIL_AVCONFIG_H
4566 EOF
4567
4568 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4569
4570 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4571
4572 cp_if_changed $TMPH libavutil/avconfig.h
4573
4574 if test -n "$WARNINGS"; then
4575     printf "\n$WARNINGS"
4576     enabled fatal_warnings && exit 1
4577 fi
4578
4579 # build pkg-config files
4580
4581 pkgconfig_generate(){
4582     name=$1
4583     shortname=${name#lib}${build_suffix}
4584     comment=$2
4585     version=$3
4586     libs=$4
4587     requires=$5
4588     enabled ${name#lib} || return 0
4589     mkdir -p $name
4590     cat <<EOF > $name/$name${build_suffix}.pc
4591 prefix=$prefix
4592 exec_prefix=\${prefix}
4593 libdir=$libdir
4594 includedir=$incdir
4595
4596 Name: $name
4597 Description: $comment
4598 Version: $version
4599 Requires: $(enabled shared || echo $requires)
4600 Requires.private: $(enabled shared && echo $requires)
4601 Conflicts:
4602 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4603 Libs.private: $(enabled shared && echo $libs)
4604 Cflags: -I\${includedir}
4605 EOF
4606
4607 mkdir -p doc/examples/pc-uninstalled
4608 includedir=${source_path}
4609 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4610     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4611 prefix=
4612 exec_prefix=
4613 libdir=\${pcfiledir}/../../../$name
4614 includedir=${includedir}
4615
4616 Name: $name
4617 Description: $comment
4618 Version: $version
4619 Requires: $requires
4620 Conflicts:
4621 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4622 Cflags: -I\${includedir}
4623 EOF
4624 }
4625
4626 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4627 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4628 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4629 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4630 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4631 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4632 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4633 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4634
4635 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4636 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4637
4638 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4639 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4640 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4641 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4642 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4643 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4644 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4645 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4646 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4647
4648 fix_ffmpeg_remote(){
4649     git_remote_from=$1
4650     git_remote_to=$2
4651     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4652     if [ "$fixme_remote" != "" ]; then
4653         echolog "
4654 Outdated domain in git config, the official domain for ffmpeg git is since
4655 November 2011, source.ffmpeg.org, both the old and the new point to the same
4656 repository and server. To update it enter the following commands:
4657 "
4658         for remote in $fixme_remote; do
4659             echolog "git remote set-url $remote $git_remote_to"
4660         done
4661     fi
4662 }
4663
4664 if test -f "$source_path/.git/config"; then
4665     remote_from=git.videolan.org
4666     remote_to=source.ffmpeg.org
4667     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4668     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4669 fi