Merge commit '0a8da1a3e5f0b9329dfb89d17356ff5444c02351'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --libdir=DIR             install libs in DIR [PREFIX/lib]
86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
87   --incdir=DIR             install includes in DIR [PREFIX/include]
88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91   --enable-gpl             allow use of GPL code, the resulting libs
92                            and binaries will be under GPL [no]
93   --enable-version3        upgrade (L)GPL to version 3 [no]
94   --enable-nonfree         allow use of nonfree code, the resulting libs
95                            and binaries will be unredistributable [no]
96
97 Configuration options:
98   --disable-static         do not build static libraries [no]
99   --enable-shared          build shared libraries [no]
100   --enable-small           optimize for size instead of speed
101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
102   --enable-gray            enable full grayscale support (slower color)
103   --disable-swscale-alpha  disable alpha channel support in swscale
104   --disable-all            disable building components, libraries and programs
105
106 Program options:
107   --disable-programs       do not build command line programs
108   --disable-ffmpeg         disable ffmpeg build
109   --disable-ffplay         disable ffplay build
110   --disable-ffprobe        disable ffprobe build
111   --disable-ffserver       disable ffserver build
112
113 Documentation options:
114   --disable-doc            do not build documentation
115   --disable-htmlpages      do not build HTML documentation pages
116   --disable-manpages       do not build man documentation pages
117   --disable-podpages       do not build POD documentation pages
118   --disable-txtpages       do not build text documentation pages
119
120 Component options:
121   --disable-avdevice       disable libavdevice build
122   --disable-avcodec        disable libavcodec build
123   --disable-avformat       disable libavformat build
124   --disable-avutil         disable libavutil build
125   --disable-swresample     disable libswresample build
126   --disable-swscale        disable libswscale build
127   --disable-postproc       disable libpostproc build
128   --disable-avfilter       disable libavfilter build
129   --enable-avresample      enable libavresample build [no]
130   --disable-pthreads       disable pthreads [auto]
131   --disable-w32threads     disable Win32 threads [auto]
132   --disable-os2threads     disable OS/2 threads [auto]
133   --enable-x11grab         enable X11 grabbing [no]
134   --disable-network        disable network support [no]
135   --disable-dct            disable DCT code
136   --disable-dwt            disable DWT code
137   --disable-lsp            disable LSP code
138   --disable-lzo            disable LZO decoder code
139   --disable-mdct           disable MDCT code
140   --disable-rdft           disable RDFT code
141   --disable-fft            disable FFT code
142
143 Hardware accelerators:
144   --enable-dxva2           enable DXVA2 code
145   --enable-vaapi           enable VAAPI code [autodetect]
146   --enable-vda             enable VDA code   [autodetect]
147   --enable-vdpau           enable VDPAU code [autodetect]
148
149 Individual component options:
150   --disable-everything     disable all components listed below
151   --disable-encoder=NAME   disable encoder NAME
152   --enable-encoder=NAME    enable encoder NAME
153   --disable-encoders       disable all encoders
154   --disable-decoder=NAME   disable decoder NAME
155   --enable-decoder=NAME    enable decoder NAME
156   --disable-decoders       disable all decoders
157   --disable-hwaccel=NAME   disable hwaccel NAME
158   --enable-hwaccel=NAME    enable hwaccel NAME
159   --disable-hwaccels       disable all hwaccels
160   --disable-muxer=NAME     disable muxer NAME
161   --enable-muxer=NAME      enable muxer NAME
162   --disable-muxers         disable all muxers
163   --disable-demuxer=NAME   disable demuxer NAME
164   --enable-demuxer=NAME    enable demuxer NAME
165   --disable-demuxers       disable all demuxers
166   --enable-parser=NAME     enable parser NAME
167   --disable-parser=NAME    disable parser NAME
168   --disable-parsers        disable all parsers
169   --enable-bsf=NAME        enable bitstream filter NAME
170   --disable-bsf=NAME       disable bitstream filter NAME
171   --disable-bsfs           disable all bitstream filters
172   --enable-protocol=NAME   enable protocol NAME
173   --disable-protocol=NAME  disable protocol NAME
174   --disable-protocols      disable all protocols
175   --enable-indev=NAME      enable input device NAME
176   --disable-indev=NAME     disable input device NAME
177   --disable-indevs         disable input devices
178   --enable-outdev=NAME     enable output device NAME
179   --disable-outdev=NAME    disable output device NAME
180   --disable-outdevs        disable output devices
181   --disable-devices        disable all devices
182   --enable-filter=NAME     enable filter NAME
183   --disable-filter=NAME    disable filter NAME
184   --disable-filters        disable all filters
185
186 External library support:
187   --enable-avisynth        enable reading of AVISynth script files [no]
188   --enable-bzlib           enable bzlib [autodetect]
189   --enable-fontconfig      enable fontconfig
190   --enable-frei0r          enable frei0r video filtering
191   --enable-gnutls          enable gnutls [no]
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-zlib            enable zlib [autodetect]
238
239 Advanced options (experts only):
240   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
241   --enable-cross-compile   assume a cross-compiler is used
242   --sysroot=PATH           root of cross-build tree
243   --sysinclude=PATH        location of cross-build system headers
244   --target-os=OS           compiler targets OS [$target_os]
245   --target-exec=CMD        command to run executables on target
246   --target-path=DIR        path to view of build directory on target
247   --toolchain=NAME         set tool defaults according to NAME
248   --nm=NM                  use nm tool NM [$nm_default]
249   --ar=AR                  use archive tool AR [$ar_default]
250   --as=AS                  use assembler AS [$as_default]
251   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
252   --cc=CC                  use C compiler CC [$cc_default]
253   --cxx=CXX                use C compiler CXX [$cxx_default]
254   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
255   --ld=LD                  use linker LD [$ld_default]
256   --host-cc=HOSTCC         use host C compiler HOSTCC
257   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
258   --host-ld=HOSTLD         use host linker HOSTLD
259   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
260   --host-libs=HLIBS        use libs HLIBS when linking for host
261   --host-os=OS             compiler host OS [$target_os]
262   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
263   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
264   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
265   --extra-libs=ELIBS       add ELIBS [$ELIBS]
266   --extra-version=STRING   version string suffix []
267   --optflags=OPTFLAGS      override optimization-related compiler flags
268   --build-suffix=SUFFIX    library name suffix []
269   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
270   --progs-suffix=SUFFIX    program name suffix []
271   --arch=ARCH              select architecture [$arch]
272   --cpu=CPU                select the minimum required CPU (affects
273                            instruction selection, may crash on older CPUs)
274   --enable-pic             build position-independent code
275   --enable-sram            allow use of on-chip SRAM
276   --enable-thumb           compile for Thumb instruction set
277   --disable-symver         disable symbol versioning
278   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
279   --disable-safe-bitstream-reader
280                            disable buffer boundary checking in bitreaders
281                            (faster, but may crash)
282   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
283   --enable-lto             use link-time optimization
284
285 Optimization options (experts only):
286   --disable-asm            disable all assembler optimizations
287   --disable-altivec        disable AltiVec optimizations
288   --disable-amd3dnow       disable 3DNow! optimizations
289   --disable-amd3dnowext    disable 3DNow! extended optimizations
290   --disable-mmx            disable MMX optimizations
291   --disable-mmxext         disable MMXEXT optimizations
292   --disable-sse            disable SSE optimizations
293   --disable-sse2           disable SSE2 optimizations
294   --disable-sse3           disable SSE3 optimizations
295   --disable-ssse3          disable SSSE3 optimizations
296   --disable-sse4           disable SSE4 optimizations
297   --disable-sse42          disable SSE4.2 optimizations
298   --disable-avx            disable AVX optimizations
299   --disable-fma4           disable FMA4 optimizations
300   --disable-armv5te        disable armv5te optimizations
301   --disable-armv6          disable armv6 optimizations
302   --disable-armv6t2        disable armv6t2 optimizations
303   --disable-vfp            disable VFP optimizations
304   --disable-neon           disable NEON optimizations
305   --disable-vis            disable VIS optimizations
306   --disable-inline-asm     disable use of inline assembler
307   --disable-yasm           disable use of yasm assembler
308   --disable-mips32r2       disable MIPS32R2 optimizations
309   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
310   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
311   --disable-mipsfpu        disable floating point MIPS optimizations
312   --disable-fast-unaligned consider unaligned accesses slow
313
314 Developer options (useful when working on FFmpeg itself):
315   --enable-coverage        build with test coverage instrumentation
316   --disable-debug          disable debugging symbols
317   --enable-debug=LEVEL     set the debug level [$debuglevel]
318   --disable-optimizations  disable compiler optimizations
319   --enable-extra-warnings  enable more compiler warnings
320   --disable-stripping      disable stripping of executables and shared libraries
321   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
322                            2 causes a slowdown at runtime.
323   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
324   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
325                            leaks and errors, using the specified valgrind binary.
326                            Cannot be combined with --target-exec
327   --enable-ftrapv          Trap arithmetic overflows
328   --samples=PATH           location of test samples for FATE, if not set use
329                            \$FATE_SAMPLES at make invocation time.
330   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
331                            should be used only for debugging purposes)
332   --enable-random          randomly enable/disable components
333   --disable-random
334   --enable-random=LIST     randomly enable/disable specific components or
335   --disable-random=LIST    component groups. LIST is a comma-separated list
336                            of NAME[:PROB] entries where NAME is a component
337                            (group) and PROB the probability associated with
338                            NAME (default 0.5).
339   --random-seed=VALUE      seed value for --enable/disable-random
340
341 NOTE: Object files are built at the place where configure is launched.
342 EOF
343   exit 0
344 }
345
346 quotes='""'
347
348 log(){
349     echo "$@" >> $logfile
350 }
351
352 log_file(){
353     log BEGIN $1
354     pr -n -t $1 >> $logfile
355     log END $1
356 }
357
358 echolog(){
359     log "$@"
360     echo "$@"
361 }
362
363 warn(){
364     log "WARNING: $*"
365     WARNINGS="${WARNINGS}WARNING: $*\n"
366 }
367
368 die(){
369     echolog "$@"
370     cat <<EOF
371
372 If you think configure made a mistake, make sure you are using the latest
373 version from Git.  If the latest version fails, report the problem to the
374 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
375 EOF
376     if disabled logging; then
377         cat <<EOF
378 Rerun configure with logging enabled (do not use --disable-logging), and
379 include the log this produces with your report.
380 EOF
381     else
382         cat <<EOF
383 Include the log file "$logfile" produced by configure as this will help
384 solving the problem.
385 EOF
386     fi
387     exit 1
388 }
389
390 # Avoid locale weirdness, besides we really just want to translate ASCII.
391 toupper(){
392     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
393 }
394
395 tolower(){
396     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
397 }
398
399 c_escape(){
400     echo "$*" | sed 's/["\\]/\\\0/g'
401 }
402
403 sh_quote(){
404     v=$(echo "$1" | sed "s/'/'\\\\''/g")
405     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
406     echo "$v"
407 }
408
409 cleanws(){
410     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
411 }
412
413 filter(){
414     pat=$1
415     shift
416     for v; do
417         eval "case $v in $pat) echo $v ;; esac"
418     done
419 }
420
421 filter_out(){
422     pat=$1
423     shift
424     for v; do
425         eval "case $v in $pat) ;; *) echo $v ;; esac"
426     done
427 }
428
429 map(){
430     m=$1
431     shift
432     for v; do eval $m; done
433 }
434
435 add_suffix(){
436     suffix=$1
437     shift
438     for v; do echo ${v}${suffix}; done
439 }
440
441 set_all(){
442     value=$1
443     shift
444     for var in $*; do
445         eval $var=$value
446     done
447 }
448
449 set_weak(){
450     value=$1
451     shift
452     for var; do
453         eval : \${$var:=$value}
454     done
455 }
456
457 set_safe(){
458     var=$1
459     shift
460     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
461 }
462
463 get_safe(){
464     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
465 }
466
467 pushvar(){
468     for var in $*; do
469         eval level=\${${var}_level:=0}
470         eval ${var}_${level}="\$$var"
471         eval ${var}_level=$(($level+1))
472     done
473 }
474
475 popvar(){
476     for var in $*; do
477         eval level=\${${var}_level:-0}
478         test $level = 0 && continue
479         eval level=$(($level-1))
480         eval $var="\${${var}_${level}}"
481         eval ${var}_level=$level
482         eval unset ${var}_${level}
483     done
484 }
485
486 enable(){
487     set_all yes $*
488 }
489
490 disable(){
491     set_all no $*
492 }
493
494 enable_weak(){
495     set_weak yes $*
496 }
497
498 disable_weak(){
499     set_weak no $*
500 }
501
502 enable_safe(){
503     for var; do
504         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
505     done
506 }
507
508 disable_safe(){
509     for var; do
510         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
511     done
512 }
513
514 do_enable_deep(){
515     for var; do
516         enabled $var && continue
517         eval sel="\$${var}_select"
518         eval sgs="\$${var}_suggest"
519         pushvar var sgs
520         enable_deep $sel
521         popvar sgs
522         enable_deep_weak $sgs
523         popvar var
524     done
525 }
526
527 enable_deep(){
528     do_enable_deep $*
529     enable $*
530 }
531
532 enable_deep_weak(){
533     do_enable_deep $*
534     enable_weak $*
535 }
536
537 enabled(){
538     test "${1#!}" = "$1" && op== || op=!=
539     eval test "x\$${1#!}" $op "xyes"
540 }
541
542 disabled(){
543     test "${1#!}" = "$1" && op== || op=!=
544     eval test "x\$${1#!}" $op "xno"
545 }
546
547 enabled_all(){
548     for opt; do
549         enabled $opt || return 1
550     done
551 }
552
553 disabled_all(){
554     for opt; do
555         disabled $opt || return 1
556     done
557 }
558
559 enabled_any(){
560     for opt; do
561         enabled $opt && return 0
562     done
563 }
564
565 disabled_any(){
566     for opt; do
567         disabled $opt && return 0
568     done
569     return 1
570 }
571
572 set_default(){
573     for opt; do
574         eval : \${$opt:=\$${opt}_default}
575     done
576 }
577
578 is_in(){
579     value=$1
580     shift
581     for var in $*; do
582         [ $var = $value ] && return 0
583     done
584     return 1
585 }
586
587 do_check_deps(){
588     for cfg; do
589         cfg="${cfg#!}"
590         enabled ${cfg}_checking && die "Circular dependency for $cfg."
591         disabled ${cfg}_checking && continue
592         enable ${cfg}_checking
593         append allopts $cfg
594
595         eval dep_all="\$${cfg}_deps"
596         eval dep_any="\$${cfg}_deps_any"
597         eval dep_sel="\$${cfg}_select"
598         eval dep_sgs="\$${cfg}_suggest"
599         eval dep_ifa="\$${cfg}_if"
600         eval dep_ifn="\$${cfg}_if_any"
601
602         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
603         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
604         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
605
606         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
607         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
608         enabled_all  $dep_all || disable $cfg
609         enabled_any  $dep_any || disable $cfg
610         disabled_any $dep_sel && disable $cfg
611
612         if enabled $cfg; then
613             enable_deep $dep_sel
614             enable_deep_weak $dep_sgs
615         fi
616
617         disable ${cfg}_checking
618     done
619 }
620
621 check_deps(){
622     unset allopts
623
624     do_check_deps "$@"
625
626     for cfg in $allopts; do
627         enabled $cfg || continue
628         eval dep_extralibs="\$${cfg}_extralibs"
629         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
630     done
631 }
632
633 print_config(){
634     pfx=$1
635     files=$2
636     shift 2
637     map 'eval echo "$v \${$v:-no}"' "$@" |
638     awk "BEGIN { split(\"$files\", files) }
639         {
640             c = \"$pfx\" toupper(\$1);
641             v = \$2;
642             sub(/yes/, 1, v);
643             sub(/no/,  0, v);
644             for (f in files) {
645                 file = files[f];
646                 if (file ~ /\\.h\$/) {
647                     printf(\"#define %s %d\\n\", c, v) >>file;
648                 } else if (file ~ /\\.asm\$/) {
649                     printf(\"%%define %s %d\\n\", c, v) >>file;
650                 } else if (file ~ /\\.mak\$/) {
651                     n = -v ? \"\" : \"!\";
652                     printf(\"%s%s=yes\\n\", n, c) >>file;
653                 }
654             }
655         }"
656 }
657
658 print_enabled(){
659     suf=$1
660     shift
661     for v; do
662         enabled $v && printf "%s\n" ${v%$suf};
663     done
664 }
665
666 append(){
667     var=$1
668     shift
669     eval "$var=\"\$$var $*\""
670 }
671
672 prepend(){
673     var=$1
674     shift
675     eval "$var=\"$* \$$var\""
676 }
677
678 add_cppflags(){
679     append CPPFLAGS "$@"
680 }
681
682 add_cflags(){
683     append CFLAGS $($cflags_filter "$@")
684 }
685
686 add_cxxflags(){
687     append CXXFLAGS $($cflags_filter "$@")
688 }
689
690 add_asflags(){
691     append ASFLAGS $($asflags_filter "$@")
692 }
693
694 add_ldflags(){
695     append LDFLAGS $($ldflags_filter "$@")
696 }
697
698 add_extralibs(){
699     prepend extralibs $($ldflags_filter "$@")
700 }
701
702 add_host_cflags(){
703     append host_cflags $($host_cflags_filter "$@")
704 }
705
706 add_host_ldflags(){
707     append host_ldflags $($host_ldflags_filter "$@")
708 }
709
710 add_compat(){
711     append compat_objs $1
712     shift
713     map 'add_cppflags -D$v' "$@"
714 }
715
716 check_cmd(){
717     log "$@"
718     "$@" >> $logfile 2>&1
719 }
720
721 cc_o(){
722     eval printf '%s\\n' $CC_O
723 }
724
725 cc_e(){
726     eval printf '%s\\n' $CC_E
727 }
728
729 check_cc(){
730     log check_cc "$@"
731     cat > $TMPC
732     log_file $TMPC
733     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
734 }
735
736 check_cxx(){
737     log check_cxx "$@"
738     cat > $TMPCPP
739     log_file $TMPCPP
740     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
741 }
742
743 check_cpp(){
744     log check_cpp "$@"
745     cat > $TMPC
746     log_file $TMPC
747     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
748 }
749
750 as_o(){
751     eval printf '%s\\n' $AS_O
752 }
753
754 check_as(){
755     log check_as "$@"
756     cat > $TMPS
757     log_file $TMPS
758     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
759 }
760
761 check_inline_asm(){
762     log check_inline_asm "$@"
763     name="$1"
764     code="$2"
765     shift 2
766     disable $name
767     check_cc "$@" <<EOF && enable $name
768 void foo(void){ __asm__ volatile($code); }
769 EOF
770 }
771
772 check_insn(){
773     log check_insn "$@"
774     check_inline_asm ${1}_inline "\"$2\""
775     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
776 }
777
778 check_yasm(){
779     log check_yasm "$@"
780     echo "$1" > $TMPS
781     log_file $TMPS
782     shift 1
783     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
784 }
785
786 ld_o(){
787     eval printf '%s\\n' $LD_O
788 }
789
790 check_ld(){
791     log check_ld "$@"
792     type=$1
793     shift 1
794     flags=$(filter_out '-l*|*.so' $@)
795     libs=$(filter '-l*|*.so' $@)
796     check_$type $($cflags_filter $flags) || return
797     flags=$($ldflags_filter $flags)
798     libs=$($ldflags_filter $libs)
799     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
800 }
801
802 check_code(){
803     log check_code "$@"
804     check=$1
805     headers=$2
806     code=$3
807     shift 3
808     {
809         for hdr in $headers; do
810             echo "#include <$hdr>"
811         done
812         echo "int main(void) { $code; return 0; }"
813     } | check_$check "$@"
814 }
815
816 check_cppflags(){
817     log check_cppflags "$@"
818     check_cc "$@" <<EOF && append CPPFLAGS "$@"
819 int x;
820 EOF
821 }
822
823 check_cflags(){
824     log check_cflags "$@"
825     set -- $($cflags_filter "$@")
826     check_cc "$@" <<EOF && append CFLAGS "$@"
827 int x;
828 EOF
829 }
830
831 check_cxxflags(){
832     log check_cxxflags "$@"
833     set -- $($cflags_filter "$@")
834     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
835 int x;
836 EOF
837 }
838
839 test_ldflags(){
840     log test_ldflags "$@"
841     check_ld "cc" "$@" <<EOF
842 int main(void){ return 0; }
843 EOF
844 }
845
846 check_ldflags(){
847     log check_ldflags "$@"
848     test_ldflags "$@" && add_ldflags "$@"
849 }
850
851 check_header(){
852     log check_header "$@"
853     header=$1
854     shift
855     disable_safe $header
856     check_cpp "$@" <<EOF && enable_safe $header
857 #include <$header>
858 int x;
859 EOF
860 }
861
862 check_func(){
863     log check_func "$@"
864     func=$1
865     shift
866     disable $func
867     check_ld "cc" "$@" <<EOF && enable $func
868 extern int $func();
869 int main(void){ $func(); }
870 EOF
871 }
872
873 check_mathfunc(){
874     log check_mathfunc "$@"
875     func=$1
876     narg=$2
877     shift 2
878     test $narg = 2 && args="f, g" || args="f"
879     disable $func
880     check_ld "cc" "$@" <<EOF && enable $func
881 #include <math.h>
882 float foo(float f, float g) { return $func($args); }
883 int main(void){ return (int) foo; }
884 EOF
885 }
886
887 check_func_headers(){
888     log check_func_headers "$@"
889     headers=$1
890     funcs=$2
891     shift 2
892     {
893         for hdr in $headers; do
894             echo "#include <$hdr>"
895         done
896         for func in $funcs; do
897             echo "long check_$func(void) { return (long) $func; }"
898         done
899         echo "int main(void) { return 0; }"
900     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
901 }
902
903 check_class_headers_cpp(){
904     log check_class_headers_cpp "$@"
905     headers=$1
906     classes=$2
907     shift 2
908     {
909         for hdr in $headers; do
910             echo "#include <$hdr>"
911         done
912         echo "int main(void) { "
913         i=1
914         for class in $classes; do
915             echo "$class obj$i;"
916             i=$(expr $i + 1)
917         done
918         echo "return 0; }"
919     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
920 }
921
922 check_cpp_condition(){
923     log check_cpp_condition "$@"
924     header=$1
925     condition=$2
926     shift 2
927     check_cpp "$@" <<EOF
928 #include <$header>
929 #if !($condition)
930 #error "unsatisfied condition: $condition"
931 #endif
932 EOF
933 }
934
935 check_lib(){
936     log check_lib "$@"
937     header="$1"
938     func="$2"
939     shift 2
940     check_header $header && check_func $func "$@" && add_extralibs "$@"
941 }
942
943 check_lib2(){
944     log check_lib2 "$@"
945     headers="$1"
946     funcs="$2"
947     shift 2
948     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
949 }
950
951 check_lib_cpp(){
952     log check_lib_cpp "$@"
953     headers="$1"
954     classes="$2"
955     shift 2
956     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
957 }
958
959 check_pkg_config(){
960     log check_pkg_config "$@"
961     pkg="$1"
962     headers="$2"
963     funcs="$3"
964     shift 3
965     $pkg_config --exists $pkg 2>/dev/null || return
966     pkg_cflags=$($pkg_config --cflags $pkg)
967     pkg_libs=$($pkg_config --libs $pkg)
968     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
969         set_safe ${pkg}_cflags $pkg_cflags   &&
970         set_safe ${pkg}_libs   $pkg_libs
971 }
972
973 check_exec(){
974     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
975 }
976
977 check_exec_crash(){
978     code=$(cat)
979
980     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
981     # are safe but may not be available everywhere.  Thus we use
982     # raise(SIGTERM) instead.  The check is run in a subshell so we
983     # can redirect the "Terminated" message from the shell.  SIGBUS
984     # is not defined by standard C so it is used conditionally.
985
986     (check_exec "$@") >> $logfile 2>&1 <<EOF
987 #include <signal.h>
988 static void sighandler(int sig){
989     raise(SIGTERM);
990 }
991 int func(void){
992     $code
993 }
994 int (*func_ptr)(void) = func;
995 int main(void){
996     signal(SIGILL, sighandler);
997     signal(SIGFPE, sighandler);
998     signal(SIGSEGV, sighandler);
999 #ifdef SIGBUS
1000     signal(SIGBUS, sighandler);
1001 #endif
1002     return func_ptr();
1003 }
1004 EOF
1005 }
1006
1007 check_type(){
1008     log check_type "$@"
1009     headers=$1
1010     type=$2
1011     shift 2
1012     disable_safe "$type"
1013     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1014 }
1015
1016 check_struct(){
1017     log check_type "$@"
1018     headers=$1
1019     struct=$2
1020     member=$3
1021     shift 3
1022     disable_safe "${struct}_${member}"
1023     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1024         enable_safe "${struct}_${member}"
1025 }
1026
1027 require(){
1028     name="$1"
1029     header="$2"
1030     func="$3"
1031     shift 3
1032     check_lib $header $func "$@" || die "ERROR: $name not found"
1033 }
1034
1035 require2(){
1036     name="$1"
1037     headers="$2"
1038     func="$3"
1039     shift 3
1040     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1041 }
1042
1043 require_cpp(){
1044     name="$1"
1045     headers="$2"
1046     classes="$3"
1047     shift 3
1048     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1049 }
1050
1051 require_pkg_config(){
1052     pkg="$1"
1053     check_pkg_config "$@" || die "ERROR: $pkg not found"
1054     add_cflags    $(get_safe ${pkg}_cflags)
1055     add_extralibs $(get_safe ${pkg}_libs)
1056 }
1057
1058 hostcc_o(){
1059     eval printf '%s\\n' $HOSTCC_O
1060 }
1061
1062 check_host_cc(){
1063     log check_host_cc "$@"
1064     cat > $TMPC
1065     log_file $TMPC
1066     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1067 }
1068
1069 check_host_cflags(){
1070     log check_host_cflags "$@"
1071     set -- $($host_cflags_filter "$@")
1072     check_host_cc "$@" <<EOF && append host_cflags "$@"
1073 int x;
1074 EOF
1075 }
1076
1077 apply(){
1078     file=$1
1079     shift
1080     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1081 }
1082
1083 cp_if_changed(){
1084     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1085     mkdir -p "$(dirname $2)"
1086     $cp_f "$1" "$2"
1087 }
1088
1089 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1090 # system-dependent things.
1091
1092 COMPONENT_LIST="
1093     bsfs
1094     decoders
1095     demuxers
1096     encoders
1097     filters
1098     hwaccels
1099     indevs
1100     muxers
1101     outdevs
1102     parsers
1103     protocols
1104 "
1105
1106 DOCUMENT_LIST="
1107     doc
1108     htmlpages
1109     manpages
1110     podpages
1111     txtpages
1112 "
1113
1114 HWACCEL_LIST="
1115     dxva2
1116     vaapi
1117     vda
1118     vdpau
1119 "
1120
1121 LIBRARY_LIST="
1122     avcodec
1123     avdevice
1124     avfilter
1125     avformat
1126     avresample
1127     avutil
1128     postproc
1129     swresample
1130     swscale
1131 "
1132
1133 PROGRAM_LIST="
1134     ffplay
1135     ffprobe
1136     ffserver
1137     ffmpeg
1138 "
1139
1140 CONFIG_LIST="
1141     $COMPONENT_LIST
1142     $DOCUMENT_LIST
1143     $HWACCEL_LIST
1144     $LIBRARY_LIST
1145     $PROGRAM_LIST
1146     avisynth
1147     bzlib
1148     crystalhd
1149     dct
1150     dwt
1151     fast_unaligned
1152     fft
1153     fontconfig
1154     frei0r
1155     ftrapv
1156     gnutls
1157     gpl
1158     gray
1159     hardcoded_tables
1160     incompatible_fork_abi
1161     libaacplus
1162     libass
1163     libbluray
1164     libcaca
1165     libcdio
1166     libcelt
1167     libdc1394
1168     libfaac
1169     libfdk_aac
1170     libflite
1171     libfreetype
1172     libgsm
1173     libiec61883
1174     libilbc
1175     libmodplug
1176     libmp3lame
1177     libnut
1178     libopencore_amrnb
1179     libopencore_amrwb
1180     libopencv
1181     libopenjpeg
1182     libopus
1183     libpulse
1184     librtmp
1185     libschroedinger
1186     libsoxr
1187     libspeex
1188     libstagefright_h264
1189     libtheora
1190     libtwolame
1191     libutvideo
1192     libv4l2
1193     libvo_aacenc
1194     libvo_amrwbenc
1195     libvorbis
1196     libvpx
1197     libx264
1198     libxavs
1199     libxvid
1200     lsp
1201     lzo
1202     mdct
1203     memalign_hack
1204     memory_poisoning
1205     network
1206     nonfree
1207     openal
1208     openssl
1209     pic
1210     rdft
1211     runtime_cpudetect
1212     safe_bitstream_reader
1213     shared
1214     small
1215     sram
1216     static
1217     swscale_alpha
1218     thumb
1219     version3
1220     xmm_clobber_test
1221     x11grab
1222     zlib
1223 "
1224
1225 THREADS_LIST='
1226     pthreads
1227     w32threads
1228     os2threads
1229 '
1230
1231 ARCH_LIST='
1232     aarch64
1233     alpha
1234     arm
1235     avr32
1236     avr32_ap
1237     avr32_uc
1238     bfin
1239     ia64
1240     m68k
1241     mips
1242     mips64
1243     parisc
1244     ppc
1245     ppc64
1246     s390
1247     sh4
1248     sparc
1249     sparc64
1250     tilegx
1251     tilepro
1252     tomi
1253     x86
1254     x86_32
1255     x86_64
1256 '
1257
1258 ARCH_EXT_LIST_ARM='
1259     armv5te
1260     armv6
1261     armv6t2
1262     neon
1263     vfp
1264     vfpv3
1265 '
1266
1267 ARCH_EXT_LIST_X86='
1268     amd3dnow
1269     amd3dnowext
1270     avx
1271     fma4
1272     mmx
1273     mmxext
1274     sse
1275     sse2
1276     sse3
1277     sse4
1278     sse42
1279     ssse3
1280 '
1281
1282 ARCH_EXT_LIST="
1283     $ARCH_EXT_LIST_ARM
1284     $ARCH_EXT_LIST_X86
1285     altivec
1286     ppc4xx
1287     vis
1288     mipsfpu
1289     mips32r2
1290     mipsdspr1
1291     mipsdspr2
1292 "
1293
1294 HAVE_LIST_CMDLINE='
1295     inline_asm
1296     symver
1297     yasm
1298 '
1299
1300 HAVE_LIST_PUB='
1301     bigendian
1302     fast_unaligned
1303     incompatible_fork_abi
1304 '
1305
1306 MATH_FUNCS="
1307     atanf
1308     atan2f
1309     cbrt
1310     cbrtf
1311     cosf
1312     exp2
1313     exp2f
1314     expf
1315     isinf
1316     isnan
1317     ldexpf
1318     llrint
1319     llrintf
1320     log2
1321     log2f
1322     log10f
1323     lrint
1324     lrintf
1325     powf
1326     rint
1327     round
1328     roundf
1329     sinf
1330     trunc
1331     truncf
1332 "
1333
1334 HAVE_LIST="
1335     $ARCH_EXT_LIST
1336     $(add_suffix _external $ARCH_EXT_LIST)
1337     $(add_suffix _inline   $ARCH_EXT_LIST)
1338     $HAVE_LIST_CMDLINE
1339     $HAVE_LIST_PUB
1340     $THREADS_LIST
1341     $MATH_FUNCS
1342     access
1343     aligned_malloc
1344     aligned_stack
1345     alsa_asoundlib_h
1346     altivec_h
1347     arpa_inet_h
1348     asm_mod_q
1349     asm_mod_y
1350     asm_types_h
1351     attribute_may_alias
1352     attribute_packed
1353     cdio_paranoia_h
1354     cdio_paranoia_paranoia_h
1355     clock_gettime
1356     closesocket
1357     cmov
1358     CommandLineToArgvW
1359     cpunop
1360     CryptGenRandom
1361     dcbzl
1362     dev_bktr_ioctl_bt848_h
1363     dev_bktr_ioctl_meteor_h
1364     dev_ic_bt8xx_h
1365     dev_video_bktr_ioctl_bt848_h
1366     dev_video_meteor_ioctl_meteor_h
1367     direct_h
1368     dlfcn_h
1369     dlopen
1370     dos_paths
1371     dxva_h
1372     ebp_available
1373     ebx_available
1374     fast_64bit
1375     fast_clz
1376     fast_cmov
1377     fcntl
1378     fork
1379     getaddrinfo
1380     gethrtime
1381     getopt
1382     GetProcessAffinityMask
1383     GetProcessMemoryInfo
1384     GetProcessTimes
1385     GetSystemTimeAsFileTime
1386     getrusage
1387     getservbyport
1388     gettimeofday
1389     glob
1390     gnu_as
1391     gsm_h
1392     ibm_asm
1393     iconv
1394     inet_aton
1395     io_h
1396     isatty
1397     jack_port_get_latency_range
1398     kbhit
1399     ldbrx
1400     libdc1394_1
1401     libdc1394_2
1402     local_aligned_16
1403     local_aligned_8
1404     localtime_r
1405     loongson
1406     lzo1x_999_compress
1407     machine_ioctl_bt848_h
1408     machine_ioctl_meteor_h
1409     makeinfo
1410     malloc_h
1411     MapViewOfFile
1412     memalign
1413     mkstemp
1414     mm_empty
1415     mmap
1416     mprotect
1417     msvcrt
1418     nanosleep
1419     openjpeg_1_5_openjpeg_h
1420     PeekNamedPipe
1421     perl
1422     pod2man
1423     poll_h
1424     posix_memalign
1425     pthread_cancel
1426     rdtsc
1427     rsync_contimeout
1428     sched_getaffinity
1429     sdl
1430     sdl_video_size
1431     SetConsoleTextAttribute
1432     setmode
1433     setrlimit
1434     Sleep
1435     sndio_h
1436     socklen_t
1437     soundcard_h
1438     strerror_r
1439     struct_addrinfo
1440     struct_group_source_req
1441     struct_ip_mreq_source
1442     struct_ipv6_mreq
1443     struct_pollfd
1444     struct_rusage_ru_maxrss
1445     struct_sctp_event_subscribe
1446     struct_sockaddr_in6
1447     struct_sockaddr_sa_len
1448     struct_sockaddr_storage
1449     struct_v4l2_frmivalenum_discrete
1450     symver_asm_label
1451     symver_gnu_asm
1452     sysconf
1453     sysctl
1454     sys_mman_h
1455     sys_param_h
1456     sys_resource_h
1457     sys_select_h
1458     sys_soundcard_h
1459     sys_time_h
1460     sys_videoio_h
1461     termios_h
1462     texi2html
1463     threads
1464     unistd_h
1465     usleep
1466     vfp_args
1467     VirtualAlloc
1468     windows_h
1469     winsock2_h
1470     xform_asm
1471     xmm_clobbers
1472 "
1473
1474 # options emitted with CONFIG_ prefix but not available on the command line
1475 CONFIG_EXTRA="
1476     aandcttables
1477     ac3dsp
1478     audio_frame_queue
1479     error_resilience
1480     gcrypt
1481     golomb
1482     gplv3
1483     h264chroma
1484     h264dsp
1485     h264pred
1486     h264qpel
1487     huffman
1488     lgplv3
1489     lpc
1490     mpegaudio
1491     mpegaudiodsp
1492     mpegvideo
1493     mpegvideoenc
1494     nettle
1495     rangecoder
1496     rtpdec
1497     rtpenc_chain
1498     sinewin
1499     videodsp
1500     vp3dsp
1501 "
1502
1503 CMDLINE_SELECT="
1504     $ARCH_EXT_LIST
1505     $CONFIG_LIST
1506     $HAVE_LIST_CMDLINE
1507     $THREADS_LIST
1508     asm
1509     coverage
1510     cross_compile
1511     debug
1512     extra_warnings
1513     logging
1514     lto
1515     optimizations
1516     stripping
1517 "
1518
1519 PATHS_LIST='
1520     bindir
1521     datadir
1522     incdir
1523     libdir
1524     mandir
1525     prefix
1526     shlibdir
1527 '
1528
1529 CMDLINE_SET="
1530     $PATHS_LIST
1531     ar
1532     arch
1533     as
1534     assert_level
1535     build_suffix
1536     cc
1537     cpu
1538     cross_prefix
1539     cxx
1540     dep_cc
1541     extra_version
1542     host_cc
1543     host_cflags
1544     host_ld
1545     host_ldflags
1546     host_libs
1547     host_os
1548     install
1549     ld
1550     logfile
1551     malloc_prefix
1552     nm
1553     optflags
1554     pkg_config
1555     progs_suffix
1556     random_seed
1557     samples
1558     strip
1559     sysinclude
1560     sysroot
1561     target_exec
1562     target_os
1563     target_path
1564     toolchain
1565     valgrind
1566     yasmexe
1567 "
1568
1569 CMDLINE_APPEND="
1570     extra_cflags
1571     extra_cxxflags
1572 "
1573
1574 # code dependency declarations
1575
1576 # architecture extensions
1577
1578 armv5te_deps="arm"
1579 armv6_deps="arm"
1580 armv6t2_deps="arm"
1581 neon_deps="arm"
1582 vfp_deps="arm"
1583 vfpv3_deps="vfp"
1584
1585 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1586
1587 mipsfpu_deps="mips"
1588 mips32r2_deps="mips"
1589 mipsdspr1_deps="mips"
1590 mipsdspr2_deps="mips"
1591
1592 altivec_deps="ppc"
1593 ppc4xx_deps="ppc"
1594
1595 vis_deps="sparc"
1596
1597 x86_64_suggest="cmov fast_cmov"
1598
1599 amd3dnow_deps="mmx"
1600 amd3dnowext_deps="amd3dnow"
1601 mmx_deps="x86"
1602 mmxext_deps="mmx"
1603 sse_deps="mmxext"
1604 sse2_deps="sse"
1605 sse3_deps="sse2"
1606 ssse3_deps="sse3"
1607 sse4_deps="ssse3"
1608 sse42_deps="sse4"
1609 avx_deps="sse42"
1610 fma4_deps="avx"
1611
1612 mmx_external_deps="yasm"
1613 mmx_inline_deps="inline_asm"
1614 mmx_suggest="mmx_external mmx_inline"
1615
1616 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1617     eval dep=\$${ext}_deps
1618     eval ${ext}_external_deps='"${dep}_external"'
1619     eval ${ext}_inline_deps='"${dep}_inline"'
1620     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1621 done
1622
1623 aligned_stack_if_any="ppc x86"
1624 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1625 fast_clz_if_any="alpha avr32 mips ppc x86"
1626 fast_unaligned_if_any="ppc x86"
1627
1628 inline_asm_deps="!tms470"
1629 need_memalign="altivec neon sse"
1630
1631 symver_if_any="symver_asm_label symver_gnu_asm"
1632
1633 log2_deps="!msvcrt"
1634
1635 # subsystems
1636 dct_select="rdft"
1637 mdct_select="fft"
1638 rdft_select="fft"
1639 mpegaudio_select="mpegaudiodsp"
1640 mpegaudiodsp_select="dct"
1641 mpegvideo_select="videodsp"
1642 mpegvideoenc_select="mpegvideo"
1643
1644 # decoders / encoders
1645 aac_decoder_select="mdct sinewin"
1646 aac_encoder_select="audio_frame_queue mdct sinewin"
1647 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1648 ac3_decoder_select="mdct ac3dsp ac3_parser"
1649 ac3_encoder_select="mdct ac3dsp"
1650 ac3_fixed_encoder_select="mdct ac3dsp"
1651 alac_encoder_select="lpc"
1652 amrnb_decoder_select="lsp"
1653 amrwb_decoder_select="lsp"
1654 amv_encoder_select="aandcttables"
1655 atrac1_decoder_select="mdct sinewin"
1656 atrac3_decoder_select="mdct"
1657 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1658 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1659 cavs_decoder_select="golomb mpegvideo"
1660 comfortnoise_encoder_select="lpc"
1661 cook_decoder_select="mdct sinewin"
1662 cscd_decoder_select="lzo"
1663 cscd_decoder_suggest="zlib"
1664 dca_decoder_select="mdct"
1665 dirac_decoder_select="dwt golomb videodsp"
1666 dnxhd_encoder_select="aandcttables mpegvideoenc"
1667 dxa_decoder_select="zlib"
1668 eac3_decoder_select="ac3_decoder"
1669 eac3_encoder_select="ac3_encoder"
1670 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1671 eatgq_decoder_select="aandcttables"
1672 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1673 exr_decoder_select="zlib"
1674 ffv1_decoder_select="golomb rangecoder"
1675 ffv1_encoder_select="rangecoder"
1676 ffvhuff_encoder_select="huffman"
1677 flac_decoder_select="golomb"
1678 flac_encoder_select="golomb lpc"
1679 flashsv_decoder_select="zlib"
1680 flashsv_encoder_select="zlib"
1681 flashsv2_encoder_select="zlib"
1682 flashsv2_decoder_select="zlib"
1683 flv_decoder_select="h263_decoder"
1684 flv_encoder_select="h263_encoder"
1685 fraps_decoder_select="huffman"
1686 h261_decoder_select="error_resilience mpegvideo"
1687 h261_encoder_select="aandcttables mpegvideoenc"
1688 h263_decoder_select="error_resilience h263_parser mpegvideo"
1689 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1690 h263i_decoder_select="h263_decoder"
1691 h263p_encoder_select="h263_encoder"
1692 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1693 huffyuv_encoder_select="huffman"
1694 iac_decoder_select="fft mdct sinewin"
1695 imc_decoder_select="fft mdct sinewin"
1696 jpegls_decoder_select="golomb"
1697 jpegls_encoder_select="golomb"
1698 ljpeg_encoder_select="aandcttables mpegvideoenc"
1699 loco_decoder_select="golomb"
1700 mdec_decoder_select="error_resilience mpegvideo"
1701 mjpeg_encoder_select="aandcttables mpegvideoenc"
1702 mlp_decoder_select="mlp_parser"
1703 mp1_decoder_select="mpegaudio"
1704 mp1float_decoder_select="mpegaudio"
1705 mp2_decoder_select="mpegaudio"
1706 mp2float_decoder_select="mpegaudio"
1707 mp3_decoder_select="mpegaudio"
1708 mp3adu_decoder_select="mpegaudio"
1709 mp3adufloat_decoder_select="mpegaudio"
1710 mp3float_decoder_select="mpegaudio"
1711 mp3on4_decoder_select="mpegaudio"
1712 mp3on4float_decoder_select="mpegaudio"
1713 mpc7_decoder_select="mpegaudiodsp"
1714 mpc8_decoder_select="mpegaudiodsp"
1715 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1716 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1717 mpeg1video_decoder_select="error_resilience mpegvideo"
1718 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1719 mpeg2video_decoder_select="error_resilience mpegvideo"
1720 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1721 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1722 mpeg4_encoder_select="h263_encoder"
1723 msmpeg4v1_decoder_select="h263_decoder"
1724 msmpeg4v1_encoder_select="h263_encoder"
1725 msmpeg4v2_decoder_select="h263_decoder"
1726 msmpeg4v2_encoder_select="h263_encoder"
1727 msmpeg4v3_decoder_select="h263_decoder"
1728 msmpeg4v3_encoder_select="h263_encoder"
1729 mss2_decoder_select="vc1_decoder"
1730 nellymoser_decoder_select="mdct sinewin"
1731 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1732 nuv_decoder_select="lzo"
1733 png_decoder_select="zlib"
1734 png_encoder_select="zlib"
1735 qcelp_decoder_select="lsp"
1736 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1737 ra_144_encoder_select="audio_frame_queue lpc"
1738 ralf_decoder_select="golomb"
1739 rv10_decoder_select="h263_decoder"
1740 rv10_encoder_select="h263_encoder"
1741 rv20_decoder_select="h263_decoder"
1742 rv20_encoder_select="h263_encoder"
1743 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1744 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1745 shorten_decoder_select="golomb"
1746 sipr_decoder_select="lsp"
1747 snow_decoder_select="dwt rangecoder"
1748 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1749 sonic_decoder_select="golomb"
1750 sonic_encoder_select="golomb"
1751 sonic_ls_encoder_select="golomb"
1752 svq1_decoder_select="error_resilience mpegvideo"
1753 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1754 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1755 svq3_decoder_suggest="zlib"
1756 theora_decoder_select="vp3_decoder"
1757 tiff_decoder_suggest="zlib"
1758 tiff_encoder_suggest="zlib"
1759 truehd_decoder_select="mlp_parser"
1760 tscc_decoder_select="zlib"
1761 twinvq_decoder_select="mdct lsp sinewin"
1762 utvideo_encoder_select="huffman"
1763 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1764 vc1image_decoder_select="vc1_decoder"
1765 vorbis_decoder_select="mdct"
1766 vorbis_encoder_select="mdct"
1767 vp3_decoder_select="vp3dsp videodsp"
1768 vp5_decoder_select="vp3dsp videodsp"
1769 vp6_decoder_select="huffman vp3dsp videodsp"
1770 vp6a_decoder_select="vp6_decoder"
1771 vp6f_decoder_select="vp6_decoder"
1772 vp8_decoder_select="h264pred videodsp"
1773 wmapro_decoder_select="mdct sinewin"
1774 wmav1_decoder_select="mdct sinewin"
1775 wmav1_encoder_select="mdct sinewin"
1776 wmav2_decoder_select="mdct sinewin"
1777 wmav2_encoder_select="mdct sinewin"
1778 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1779 wmv1_decoder_select="h263_decoder"
1780 wmv1_encoder_select="h263_encoder"
1781 wmv2_decoder_select="h263_decoder"
1782 wmv2_encoder_select="h263_encoder"
1783 wmv3_decoder_select="vc1_decoder"
1784 wmv3image_decoder_select="wmv3_decoder"
1785 zerocodec_decoder_select="zlib"
1786 zlib_decoder_select="zlib"
1787 zlib_encoder_select="zlib"
1788 zmbv_decoder_select="zlib"
1789 zmbv_encoder_select="zlib"
1790
1791 # hardware accelerators
1792 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1793 vaapi_deps="va_va_h"
1794 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1795 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1796
1797 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1798 h263_vdpau_hwaccel_select="vdpau h263_decoder"
1799 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1800 h264_dxva2_hwaccel_deps="dxva2api_h"
1801 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1802 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1803 h264_vda_decoder_select="vda h264_parser h264_decoder"
1804 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1805 h264_vda_hwaccel_select="vda h264_decoder"
1806 h264_vdpau_decoder_select="vdpau h264_decoder"
1807 h264_vdpau_hwaccel_select="vdpau h264_decoder"
1808 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1809 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1810 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1811 mpeg2_crystalhd_decoder_select="crystalhd"
1812 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1813 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1814 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1815 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1816 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1817 mpeg4_crystalhd_decoder_select="crystalhd"
1818 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1819 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1820 mpeg4_vdpau_hwaccel_select="vdpau mpeg4_decoder"
1821 msmpeg4_crystalhd_decoder_select="crystalhd"
1822 vc1_crystalhd_decoder_select="crystalhd"
1823 vc1_dxva2_hwaccel_deps="dxva2api_h"
1824 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1825 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1826 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1827 vc1_vdpau_hwaccel_select="vdpau vc1_decoder"
1828 wmv3_crystalhd_decoder_select="crystalhd"
1829 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1830 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1831 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1832 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1833
1834 # parsers
1835 h264_parser_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1836 mpeg4video_parser_select="error_resilience mpegvideo"
1837 mpegvideo_parser_select="error_resilience mpegvideo"
1838 vc1_parser_select="error_resilience mpegvideo"
1839
1840 # external libraries
1841 libaacplus_encoder_deps="libaacplus"
1842 libcelt_decoder_deps="libcelt"
1843 libfaac_encoder_deps="libfaac"
1844 libfaac_encoder_select="audio_frame_queue"
1845 libfdk_aac_encoder_deps="libfdk_aac"
1846 libfdk_aac_encoder_select="audio_frame_queue"
1847 libgsm_decoder_deps="libgsm"
1848 libgsm_encoder_deps="libgsm"
1849 libgsm_ms_decoder_deps="libgsm"
1850 libgsm_ms_encoder_deps="libgsm"
1851 libilbc_decoder_deps="libilbc"
1852 libilbc_encoder_deps="libilbc"
1853 libmodplug_demuxer_deps="libmodplug"
1854 libmp3lame_encoder_deps="libmp3lame"
1855 libmp3lame_encoder_select="audio_frame_queue"
1856 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1857 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1858 libopencore_amrnb_encoder_select="audio_frame_queue"
1859 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1860 libopenjpeg_decoder_deps="libopenjpeg"
1861 libopenjpeg_encoder_deps="libopenjpeg"
1862 libopus_decoder_deps="libopus"
1863 libopus_encoder_deps="libopus"
1864 libopus_encoder_select="audio_frame_queue"
1865 libschroedinger_decoder_deps="libschroedinger"
1866 libschroedinger_encoder_deps="libschroedinger"
1867 libspeex_decoder_deps="libspeex"
1868 libspeex_encoder_deps="libspeex"
1869 libspeex_encoder_select="audio_frame_queue"
1870 libstagefright_h264_decoder_deps="libstagefright_h264"
1871 libtheora_encoder_deps="libtheora"
1872 libtwolame_encoder_deps="libtwolame"
1873 libvo_aacenc_encoder_deps="libvo_aacenc"
1874 libvo_aacenc_encoder_select="audio_frame_queue"
1875 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1876 libvorbis_decoder_deps="libvorbis"
1877 libvorbis_encoder_deps="libvorbis"
1878 libvorbis_encoder_select="audio_frame_queue"
1879 libvpx_vp8_decoder_deps="libvpx"
1880 libvpx_vp8_encoder_deps="libvpx"
1881 libvpx_vp9_decoder_deps="libvpx"
1882 libvpx_vp9_encoder_deps="libvpx"
1883 libx264_encoder_deps="libx264"
1884 libx264rgb_encoder_deps="libx264"
1885 libxavs_encoder_deps="libxavs"
1886 libxvid_encoder_deps="libxvid"
1887 libutvideo_decoder_deps="libutvideo"
1888 libutvideo_encoder_deps="libutvideo"
1889
1890 # demuxers / muxers
1891 ac3_demuxer_select="ac3_parser"
1892 asf_stream_muxer_select="asf_muxer"
1893 avisynth_demuxer_deps="avisynth"
1894 dirac_demuxer_select="dirac_parser"
1895 dts_demuxer_select="dca_parser"
1896 dtshd_demuxer_select="dca_parser"
1897 eac3_demuxer_select="ac3_parser"
1898 f4v_muxer_select="mov_muxer"
1899 flac_demuxer_select="flac_parser"
1900 ipod_muxer_select="mov_muxer"
1901 ismv_muxer_select="mov_muxer"
1902 libnut_demuxer_deps="libnut"
1903 libnut_muxer_deps="libnut"
1904 matroska_audio_muxer_select="matroska_muxer"
1905 matroska_demuxer_suggest="bzlib lzo zlib"
1906 mov_demuxer_suggest="zlib"
1907 mov_muxer_select="rtpenc_chain"
1908 mp3_demuxer_select="mpegaudio_parser"
1909 mp4_muxer_select="mov_muxer"
1910 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1911 mpegtsraw_demuxer_select="mpegts_demuxer"
1912 mxf_d10_muxer_select="mxf_muxer"
1913 ogg_demuxer_select="golomb"
1914 psp_muxer_select="mov_muxer"
1915 rtp_demuxer_select="sdp_demuxer"
1916 rtp_muxer_select="mpegvideo"
1917 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1918 rtsp_demuxer_select="http_protocol rtpdec"
1919 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1920 sap_demuxer_select="sdp_demuxer"
1921 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1922 sdp_demuxer_select="rtpdec"
1923 smoothstreaming_muxer_select="ismv_muxer"
1924 spdif_muxer_select="aac_parser"
1925 tak_demuxer_select="tak_parser"
1926 tg2_muxer_select="mov_muxer"
1927 tgp_muxer_select="mov_muxer"
1928 vobsub_demuxer_select="mpegps_demuxer"
1929 w64_demuxer_deps="wav_demuxer"
1930 w64_muxer_deps="wav_muxer"
1931
1932 # indevs / outdevs
1933 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1934 alsa_outdev_deps="alsa_asoundlib_h"
1935 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1936 caca_outdev_deps="libcaca"
1937 dshow_indev_deps="IBaseFilter"
1938 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1939 dv1394_indev_deps="dv1394 dv_demuxer"
1940 fbdev_indev_deps="linux_fb_h"
1941 iec61883_indev_deps="libiec61883"
1942 jack_indev_deps="jack_jack_h sem_timedwait"
1943 lavfi_indev_deps="avfilter"
1944 libcdio_indev_deps="libcdio"
1945 libdc1394_indev_deps="libdc1394"
1946 libv4l2_indev_deps="libv4l2"
1947 openal_indev_deps="openal"
1948 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1949 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1950 pulse_indev_deps="libpulse"
1951 sdl_outdev_deps="sdl"
1952 sndio_indev_deps="sndio_h"
1953 sndio_outdev_deps="sndio_h"
1954 v4l_indev_deps="linux_videodev_h"
1955 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1956 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1957 vfwcap_indev_extralibs="-lavicap32"
1958 x11grab_indev_deps="x11grab"
1959
1960 # protocols
1961 bluray_protocol_deps="libbluray"
1962 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1963 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1964 ffrtmpcrypt_protocol_select="tcp_protocol"
1965 ffrtmphttp_protocol_deps="!librtmp_protocol"
1966 ffrtmphttp_protocol_select="http_protocol"
1967 gopher_protocol_select="network"
1968 httpproxy_protocol_select="tcp_protocol"
1969 http_protocol_select="tcp_protocol"
1970 https_protocol_select="tls_protocol"
1971 librtmp_protocol_deps="librtmp"
1972 librtmpe_protocol_deps="librtmp"
1973 librtmps_protocol_deps="librtmp"
1974 librtmpt_protocol_deps="librtmp"
1975 librtmpte_protocol_deps="librtmp"
1976 mmsh_protocol_select="http_protocol"
1977 mmst_protocol_select="network"
1978 rtmp_protocol_deps="!librtmp_protocol"
1979 rtmp_protocol_select="tcp_protocol"
1980 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1981 rtmps_protocol_deps="!librtmp_protocol"
1982 rtmps_protocol_select="tls_protocol"
1983 rtmpt_protocol_select="ffrtmphttp_protocol"
1984 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1985 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1986 rtp_protocol_select="udp_protocol"
1987 sctp_protocol_deps="struct_sctp_event_subscribe"
1988 sctp_protocol_select="network"
1989 srtp_protocol_select="rtp_protocol"
1990 tcp_protocol_select="network"
1991 tls_protocol_deps_any="openssl gnutls"
1992 tls_protocol_select="tcp_protocol"
1993 udp_protocol_select="network"
1994
1995 # filters
1996 aconvert_filter_deps="swresample"
1997 amovie_filter_deps="avcodec avformat"
1998 aresample_filter_deps="swresample"
1999 ass_filter_deps="libass"
2000 asyncts_filter_deps="avresample"
2001 atempo_filter_deps="avcodec rdft"
2002 blackframe_filter_deps="gpl"
2003 boxblur_filter_deps="gpl"
2004 colormatrix_filter_deps="gpl"
2005 cropdetect_filter_deps="gpl"
2006 decimate_filter_deps="gpl avcodec"
2007 delogo_filter_deps="gpl"
2008 deshake_filter_deps="avcodec"
2009 drawtext_filter_deps="libfreetype"
2010 ebur128_filter_deps="gpl"
2011 flite_filter_deps="libflite"
2012 frei0r_filter_deps="frei0r dlopen"
2013 frei0r_filter_extralibs='$ldl'
2014 frei0r_src_filter_deps="frei0r dlopen"
2015 frei0r_src_filter_extralibs='$ldl'
2016 geq_filter_deps="gpl"
2017 histeq_filter_deps="gpl"
2018 hqdn3d_filter_deps="gpl"
2019 hue_filter_deps="gpl"
2020 kerndeint_filter_deps="gpl"
2021 movie_filter_deps="avcodec avformat"
2022 mp_filter_deps="gpl avcodec swscale inline_asm"
2023 mptestsrc_filter_deps="gpl"
2024 negate_filter_deps="lut_filter"
2025 noise_filter_deps="gpl"
2026 resample_filter_deps="avresample"
2027 ocv_filter_deps="libopencv"
2028 pan_filter_deps="swresample"
2029 pp_filter_deps="gpl postproc"
2030 removelogo_filter_deps="avcodec avformat swscale"
2031 scale_filter_deps="swscale"
2032 smartblur_filter_deps="gpl swscale"
2033 showspectrum_filter_deps="avcodec rdft"
2034 subtitles_filter_deps="avformat avcodec libass"
2035 super2xsai_filter_deps="gpl"
2036 tinterlace_filter_deps="gpl"
2037 yadif_filter_deps="gpl"
2038 pixfmts_super2xsai_test_deps="super2xsai_filter"
2039 tinterlace_merge_test_deps="tinterlace_filter"
2040 tinterlace_pad_test_deps="tinterlace_filter"
2041
2042 # libraries
2043 avcodec_deps="avutil"
2044 avdevice_deps="avutil avcodec avformat"
2045 avfilter_deps="avutil"
2046 avformat_deps="avutil avcodec"
2047 avresample_deps="avutil"
2048 postproc_deps="avutil gpl"
2049 swscale_deps="avutil"
2050
2051 # programs
2052 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2053 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2054                setpts_filter null_filter anull_filter ffabuffersink_filter"
2055 ffplay_deps="avcodec avformat swscale swresample sdl"
2056 ffplay_select="ffbuffersink_filter rdft crop_filter"
2057 ffprobe_deps="avcodec avformat"
2058 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2059 ffserver_extralibs='$ldl'
2060
2061 # documentation
2062 podpages_deps="perl"
2063 manpages_deps="perl pod2man"
2064 htmlpages_deps="texi2html"
2065 txtpages_deps="makeinfo"
2066 doc_deps_any="manpages htmlpages podpages txtpages"
2067
2068 # default parameters
2069
2070 logfile="config.log"
2071
2072 # installation paths
2073 prefix_default="/usr/local"
2074 bindir_default='${prefix}/bin'
2075 datadir_default='${prefix}/share/ffmpeg'
2076 incdir_default='${prefix}/include'
2077 libdir_default='${prefix}/lib'
2078 mandir_default='${prefix}/share/man'
2079 shlibdir_default="$libdir_default"
2080
2081 # toolchain
2082 ar_default="ar"
2083 cc_default="gcc"
2084 cxx_default="g++"
2085 host_cc_default="gcc"
2086 cp_f="cp -f"
2087 install="install"
2088 ln_s="ln -sf"
2089 nm_default="nm -g"
2090 objformat="elf"
2091 pkg_config_default=pkg-config
2092 ranlib="ranlib"
2093 strip_default="strip"
2094 yasmexe_default="yasm"
2095
2096 nogas=":"
2097
2098 # machine
2099 arch_default=$(uname -m)
2100 cpu="generic"
2101
2102 # OS
2103 target_os_default=$(tolower $(uname -s))
2104 host_os=$target_os_default
2105
2106 # configurable options
2107 enable $PROGRAM_LIST
2108 enable $DOCUMENT_LIST
2109 enable $(filter_out avresample $LIBRARY_LIST)
2110 enable stripping
2111
2112 enable asm
2113 enable debug
2114 enable doc
2115 enable optimizations
2116 enable runtime_cpudetect
2117 enable safe_bitstream_reader
2118 enable static
2119 enable swscale_alpha
2120
2121 # build settings
2122 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2123 FFSERVERLDFLAGS=-Wl,-E
2124 LIBPREF="lib"
2125 LIBSUF=".a"
2126 FULLNAME='$(NAME)$(BUILDSUF)'
2127 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2128 SLIBPREF="lib"
2129 SLIBSUF=".so"
2130 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2131 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2132 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2133 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2134 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2135 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2136
2137 asflags_filter=echo
2138 cflags_filter=echo
2139 ldflags_filter=echo
2140
2141 AS_C='-c'
2142 AS_O='-o $@'
2143 CC_C='-c'
2144 CC_E='-E -o $@'
2145 CC_O='-o $@'
2146 CXX_C='-c'
2147 CXX_O='-o $@'
2148 LD_O='-o $@'
2149 LD_LIB='-l%'
2150 LD_PATH='-L'
2151 HOSTCC_C='-c'
2152 HOSTCC_O='-o $@'
2153 HOSTLD_O='-o $@'
2154
2155 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2156 host_libs='-lm'
2157 host_cflags_filter=echo
2158 host_ldflags_filter=echo
2159
2160 target_path='$(CURDIR)'
2161
2162 # since the object filename is not given with the -MM flag, the compiler
2163 # is only able to print the basename, and we must add the path ourselves
2164 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2165 DEPFLAGS='-MM'
2166
2167 # find source path
2168 if test -f configure; then
2169     source_path=.
2170 else
2171     source_path=$(cd $(dirname "$0"); pwd)
2172     echo "$source_path" | grep -q '[[:blank:]]' &&
2173         die "Out of tree builds are impossible with whitespace in source path."
2174     test -e "$source_path/config.h" &&
2175         die "Out of tree builds are impossible with config.h in source dir."
2176 fi
2177
2178 for v in "$@"; do
2179     r=${v#*=}
2180     l=${v%"$r"}
2181     r=$(sh_quote "$r")
2182     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2183 done
2184
2185 find_things(){
2186     thing=$1
2187     pattern=$2
2188     file=$source_path/$3
2189     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2190 }
2191
2192 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2193 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2194 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2195 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2196 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2197 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2198 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2199 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2200 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2201 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2202 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2203
2204 ALL_COMPONENTS="
2205     $BSF_LIST
2206     $DECODER_LIST
2207     $DEMUXER_LIST
2208     $ENCODER_LIST
2209     $FILTER_LIST
2210     $HWACCEL_LIST
2211     $INDEV_LIST
2212     $MUXER_LIST
2213     $OUTDEV_LIST
2214     $PARSER_LIST
2215     $PROTOCOL_LIST
2216 "
2217
2218 for n in $COMPONENT_LIST; do
2219     v=$(toupper ${n%s})_LIST
2220     eval enable \$$v
2221     eval ${n}_if_any="\$$v"
2222 done
2223
2224 enable $ARCH_EXT_LIST
2225
2226 die_unknown(){
2227     echo "Unknown option \"$1\"."
2228     echo "See $0 --help for available options."
2229     exit 1
2230 }
2231
2232 print_3_columns() {
2233     cat | tr ' ' '\n' | sort | pr -r -3 -t
2234 }
2235
2236 show_list() {
2237     suffix=_$1
2238     shift
2239     echo $* | sed s/$suffix//g | print_3_columns
2240     exit 0
2241 }
2242
2243 rand_list(){
2244     IFS=', '
2245     set -- $*
2246     unset IFS
2247     for thing; do
2248         comp=${thing%:*}
2249         prob=${thing#$comp}
2250         prob=${prob#:}
2251         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2252         echo "prob ${prob:-0.5}"
2253         printf '%s\n' $comp
2254     done
2255 }
2256
2257 do_random(){
2258     action=$1
2259     shift
2260     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2261     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2262 }
2263
2264 for opt do
2265     optval="${opt#*=}"
2266     case "$opt" in
2267         --extra-ldflags=*)
2268             add_ldflags $optval
2269         ;;
2270         --extra-libs=*)
2271             add_extralibs $optval
2272         ;;
2273         --disable-devices)
2274             disable $INDEV_LIST $OUTDEV_LIST
2275         ;;
2276         --enable-debug=*)
2277             debuglevel="$optval"
2278         ;;
2279         --disable-programs)
2280             disable $PROGRAM_LIST
2281         ;;
2282         --disable-everything)
2283             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2284         ;;
2285         --disable-all)
2286             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2287             disable $LIBRARY_LIST $PROGRAM_LIST doc
2288         ;;
2289         --enable-random|--disable-random)
2290             action=${opt%%-random}
2291             do_random ${action#--} $COMPONENT_LIST
2292         ;;
2293         --enable-random=*|--disable-random=*)
2294             action=${opt%%-random=*}
2295             do_random ${action#--} $optval
2296         ;;
2297         --enable-*=*|--disable-*=*)
2298             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2299             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2300             eval list=\$$(toupper $thing)_LIST
2301             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2302             list=$(filter "$name" $list)
2303             [ "$list" = "" ] && warn "Option $opt did not match anything"
2304             $action $list
2305         ;;
2306         --enable-?*|--disable-?*)
2307             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2308             if is_in $option $COMPONENT_LIST; then
2309                 test $action = disable && action=unset
2310                 eval $action \$$(toupper ${option%s})_LIST
2311             elif is_in $option $CMDLINE_SELECT; then
2312                 $action $option
2313             else
2314                 die_unknown $opt
2315             fi
2316         ;;
2317         --list-*)
2318             NAME="${opt#--list-}"
2319             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2320             NAME=${NAME%s}
2321             eval show_list $NAME \$$(toupper $NAME)_LIST
2322         ;;
2323         --help|-h) show_help
2324         ;;
2325         --fatal-warnings) enable fatal_warnings
2326         ;;
2327         *)
2328             optname="${opt%%=*}"
2329             optname="${optname#--}"
2330             optname=$(echo "$optname" | sed 's/-/_/g')
2331             if is_in $optname $CMDLINE_SET; then
2332                 eval $optname='$optval'
2333             elif is_in $optname $CMDLINE_APPEND; then
2334                 append $optname "$optval"
2335             else
2336                 die_unknown $opt
2337             fi
2338         ;;
2339     esac
2340 done
2341
2342 disabled logging && logfile=/dev/null
2343
2344 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2345 set >> $logfile
2346
2347 test -n "$cross_prefix" && enable cross_compile
2348
2349 if enabled cross_compile; then
2350     test -n "$arch" && test -n "$target_os" ||
2351         die "Must specify target arch and OS when cross-compiling"
2352 fi
2353
2354 ar_default="${cross_prefix}${ar_default}"
2355 cc_default="${cross_prefix}${cc_default}"
2356 cxx_default="${cross_prefix}${cxx_default}"
2357 nm_default="${cross_prefix}${nm_default}"
2358 pkg_config_default="${cross_prefix}${pkg_config_default}"
2359 ranlib="${cross_prefix}${ranlib}"
2360 strip_default="${cross_prefix}${strip_default}"
2361
2362 sysinclude_default="${sysroot}/usr/include"
2363
2364 case "$toolchain" in
2365     clang-asan)
2366         cc_default="clang"
2367         add_cflags  -faddress-sanitizer
2368         add_ldflags -faddress-sanitizer
2369     ;;
2370     clang-tsan)
2371         cc_default="clang"
2372         add_cflags  -fthread-sanitizer
2373         add_ldflags -fthread-sanitizer
2374     ;;
2375     msvc)
2376         cc_default="c99wrap cl"
2377         ld_default="c99wrap link"
2378         nm_default="dumpbin -symbols"
2379         ar_default="lib"
2380         target_os_default="win32"
2381     ;;
2382     ?*)
2383         die "Unknown toolchain $toolchain"
2384     ;;
2385 esac
2386
2387 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2388 enabled cross_compile || host_cc_default=$cc
2389 set_default host_cc
2390
2391 if ! $pkg_config --version >/dev/null 2>&1; then
2392     warn "$pkg_config not found, library detection may fail."
2393     pkg_config=false
2394 fi
2395
2396 exesuf() {
2397     case $1 in
2398         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2399     esac
2400 }
2401
2402 EXESUF=$(exesuf $target_os)
2403 HOSTEXESUF=$(exesuf $host_os)
2404
2405 # set temporary file name
2406 : ${TMPDIR:=$TEMPDIR}
2407 : ${TMPDIR:=$TMP}
2408 : ${TMPDIR:=/tmp}
2409
2410 if ! check_cmd mktemp -u XXXXXX; then
2411     # simple replacement for missing mktemp
2412     # NOT SAFE FOR GENERAL USE
2413     mktemp(){
2414         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2415     }
2416 fi
2417
2418 tmpfile(){
2419     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2420         (set -C; exec > $tmp) 2>/dev/null ||
2421         die "Unable to create temporary file in $TMPDIR."
2422     append TMPFILES $tmp
2423     eval $1=$tmp
2424 }
2425
2426 trap 'rm -f -- $TMPFILES' EXIT
2427
2428 tmpfile TMPASM .asm
2429 tmpfile TMPC   .c
2430 tmpfile TMPCPP .cpp
2431 tmpfile TMPE   $EXESUF
2432 tmpfile TMPH   .h
2433 tmpfile TMPO   .o
2434 tmpfile TMPS   .S
2435 tmpfile TMPSH  .sh
2436 tmpfile TMPV   .ver
2437
2438 unset -f mktemp
2439
2440 chmod +x $TMPE
2441
2442 # make sure we can execute files in $TMPDIR
2443 cat > $TMPSH 2>> $logfile <<EOF
2444 #! /bin/sh
2445 EOF
2446 chmod +x $TMPSH >> $logfile 2>&1
2447 if ! $TMPSH >> $logfile 2>&1; then
2448     cat <<EOF
2449 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2450 variable to another directory and make sure that it is not mounted noexec.
2451 EOF
2452     die "Sanity test failed."
2453 fi
2454
2455 ccc_flags(){
2456     for flag; do
2457         case $flag in
2458             -std=c99)           echo -c99                       ;;
2459             -mcpu=*)            echo -arch ${flag#*=}           ;;
2460             -mieee)             echo -ieee                      ;;
2461             -O*|-fast)          echo $flag                      ;;
2462             -fno-math-errno)    echo -assume nomath_errno       ;;
2463             -g)                 echo -g3                        ;;
2464             -Wall)              echo -msg_enable level2         ;;
2465             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2466             -Wl,*)              echo $flag                      ;;
2467             -f*|-W*)                                            ;;
2468             *)                  echo $flag                      ;;
2469         esac
2470    done
2471 }
2472
2473 msvc_flags(){
2474     for flag; do
2475         case $flag in
2476             -fomit-frame-pointer) echo -Oy ;;
2477             -g)                   echo -Z7 ;;
2478             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2479                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2480                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2481                                        -wd4554 \
2482                                        -wd4996 -wd4273 ;;
2483             -std=c99)             ;;
2484             -fno-math-errno)      ;;
2485             -fno-common)          ;;
2486             -fno-signed-zeros)    ;;
2487             -fPIC)                ;;
2488             -lz)                  echo zlib.lib ;;
2489             -lavifil32)           echo vfw32.lib ;;
2490             -lavicap32)           echo vfw32.lib user32.lib ;;
2491             -l*)                  echo ${flag#-l}.lib ;;
2492             *)                    echo $flag ;;
2493         esac
2494     done
2495 }
2496
2497 pgi_flags(){
2498     for flag; do
2499         case $flag in
2500             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2501             -fomit-frame-pointer) echo -Mnoframe ;;
2502             -g)                   echo -gopt ;;
2503             *)                    echo $flag ;;
2504         esac
2505     done
2506 }
2507
2508 suncc_flags(){
2509     for flag; do
2510         case $flag in
2511             -march=*|-mcpu=*)
2512                 case "${flag#*=}" in
2513                     native)                   echo -xtarget=native       ;;
2514                     v9|niagara)               echo -xarch=sparc          ;;
2515                     ultrasparc)               echo -xarch=sparcvis       ;;
2516                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2517                     i586|pentium)             echo -xchip=pentium        ;;
2518                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2519                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2520                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2521                     pentium4*)          echo -xtarget=pentium4           ;;
2522                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2523                     *-sse3)             echo -xarch=sse3                 ;;
2524                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2525                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2526                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2527                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2528                     bdver*)                   echo -xarch=avx            ;;
2529                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2530                     k8|opteron|athlon64|athlon-fx)
2531                                               echo -xarch=sse2a          ;;
2532                     athlon*)                  echo -xarch=pentium_proa   ;;
2533                 esac
2534                 ;;
2535             -std=c99)             echo -xc99              ;;
2536             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2537             -fPIC)                echo -KPIC -xcode=pic32 ;;
2538             -W*,*)                echo $flag              ;;
2539             -f*-*|-W*|-mimpure-text)                      ;;
2540             -shared)              echo -G                 ;;
2541             *)                    echo $flag              ;;
2542         esac
2543     done
2544 }
2545
2546 tms470_flags(){
2547     for flag; do
2548         case $flag in
2549             -march=*|-mcpu=*)
2550                 case "${flag#*=}" in
2551                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2552                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2553                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2554                     armv6*|arm11*)          echo -mv=6   ;;
2555                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2556                                             echo -mv=5e  ;;
2557                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2558                 esac
2559                 ;;
2560             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2561             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2562             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2563             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2564             -msoft-float)   echo --float_support=vfplib       ;;
2565             -O[0-3]|-mf=*)  echo $flag                        ;;
2566             -g)             echo -g -mn                       ;;
2567             -pds=*)         echo $flag                        ;;
2568             -D*|-I*)        echo $flag                        ;;
2569             --gcc|--abi=*)  echo $flag                        ;;
2570             -me)            echo $flag                        ;;
2571         esac
2572     done
2573 }
2574
2575 probe_cc(){
2576     pfx=$1
2577     _cc=$2
2578
2579     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2580     unset _ld_o _ldflags _ld_lib _ld_path
2581     unset _depflags _DEPCMD _DEPFLAGS
2582     _flags_filter=echo
2583
2584     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2585         _type=llvm_gcc
2586         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2587         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2588         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2589         _cflags_speed='-O3'
2590         _cflags_size='-Os'
2591     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2592         _type=gcc
2593         gcc_version=$($_cc --version | head -n1)
2594         gcc_basever=$($_cc -dumpversion)
2595         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2596         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2597         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2598         if ! $_cc -dumpversion | grep -q '^2\.'; then
2599             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2600         fi
2601         _cflags_speed='-O3'
2602         _cflags_size='-Os'
2603     elif $_cc --version 2>/dev/null | grep -q Intel; then
2604         _type=icc
2605         _ident=$($_cc --version | head -n1)
2606         _depflags='-MMD'
2607         _cflags_speed='-O3'
2608         _cflags_size='-Os'
2609         _cflags_noopt='-O1'
2610     elif $_cc -v 2>&1 | grep -q xlc; then
2611         _type=xlc
2612         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2613         _cflags_speed='-O5'
2614         _cflags_size='-O5 -qcompact'
2615     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2616         _type=ccc
2617         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2618         _DEPFLAGS='-M'
2619         _cflags_speed='-fast'
2620         _cflags_size='-O1'
2621         _flags_filter=ccc_flags
2622     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2623         test -d "$sysroot" || die "No valid sysroot specified."
2624         _type=armcc
2625         _ident=$($_cc --vsn | head -n1)
2626         armcc_conf="$PWD/armcc.conf"
2627         $_cc --arm_linux_configure                 \
2628              --arm_linux_config_file="$armcc_conf" \
2629              --configure_sysroot="$sysroot"        \
2630              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2631              die "Error creating armcc configuration file."
2632         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2633         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2634         as_default="${cross_prefix}gcc"
2635         _depflags='-MMD'
2636         _cflags_speed='-O3'
2637         _cflags_size='-Os'
2638     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2639         _type=tms470
2640         _ident=$($_cc -version | head -n1 | tr -s ' ')
2641         _flags='--gcc --abi=eabi -me'
2642         _cc_e='-ppl -fe=$@'
2643         _cc_o='-fe=$@'
2644         _depflags='-ppa -ppd=$(@:.o=.d)'
2645         _cflags_speed='-O3 -mf=5'
2646         _cflags_size='-O3 -mf=2'
2647         _flags_filter=tms470_flags
2648     elif $_cc -v 2>&1 | grep -q clang; then
2649         _type=clang
2650         _ident=$($_cc --version | head -n1)
2651         _depflags='-MMD'
2652         _cflags_speed='-O3'
2653         _cflags_size='-Os'
2654     elif $_cc -V 2>&1 | grep -q Sun; then
2655         _type=suncc
2656         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2657         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2658         _DEPFLAGS='-xM1 -xc99'
2659         _ldflags='-std=c99'
2660         _cflags_speed='-O5'
2661         _cflags_size='-O5 -xspace'
2662         _flags_filter=suncc_flags
2663     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2664         _type=pathscale
2665         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2666         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2667         _cflags_speed='-O2'
2668         _cflags_size='-Os'
2669         _flags_filter='filter_out -Wdisabled-optimization'
2670     elif $_cc -v 2>&1 | grep -q Open64; then
2671         _type=open64
2672         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2673         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2674         _cflags_speed='-O2'
2675         _cflags_size='-Os'
2676         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2677     elif $_cc -V 2>&1 | grep -q Portland; then
2678         _type=pgi
2679         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2680         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2681         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2682         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2683         _cflags_noopt="-O1"
2684         _flags_filter=pgi_flags
2685     elif $_cc 2>&1 | grep -q Microsoft; then
2686         _type=msvc
2687         _ident=$($cc 2>&1 | head -n1)
2688         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2689         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2690         _cflags_speed="-O2"
2691         _cflags_size="-O1"
2692         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2693         if $_cc 2>&1 | grep -q Linker; then
2694             _ld_o='-out $@'
2695         else
2696             _ld_o='-Fe$@'
2697         fi
2698         _cc_o='-Fo $@'
2699         _cc_e='-P -Fi $@'
2700         _flags_filter=msvc_flags
2701         _ld_lib='lib%.a'
2702         _ld_path='-libpath:'
2703         _flags='-nologo'
2704         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2705         if [ $pfx = hostcc ]; then
2706             append _cflags -Dsnprintf=_snprintf
2707         fi
2708         disable stripping
2709     fi
2710
2711     eval ${pfx}_type=\$_type
2712     eval ${pfx}_ident=\$_ident
2713 }
2714
2715 set_ccvars(){
2716     eval ${1}_C=\${_cc_c-\${${1}_C}}
2717     eval ${1}_E=\${_cc_e-\${${1}_E}}
2718     eval ${1}_O=\${_cc_o-\${${1}_O}}
2719
2720     if [ -n "$_depflags" ]; then
2721         eval ${1}_DEPFLAGS=\$_depflags
2722     else
2723         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2724         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2725         eval DEP${1}FLAGS=\$_flags
2726     fi
2727 }
2728
2729 probe_cc cc "$cc"
2730 cflags_filter=$_flags_filter
2731 cflags_speed=$_cflags_speed
2732 cflags_size=$_cflags_size
2733 cflags_noopt=$_cflags_noopt
2734 add_cflags $_flags $_cflags
2735 cc_ldflags=$_ldflags
2736 set_ccvars CC
2737
2738 probe_cc hostcc "$host_cc"
2739 host_cflags_filter=$_flags_filter
2740 add_host_cflags  $_flags $_cflags
2741 set_ccvars HOSTCC
2742
2743 test -n "$cc_type" && enable $cc_type ||
2744     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2745
2746 : ${as_default:=$cc}
2747 : ${dep_cc_default:=$cc}
2748 : ${ld_default:=$cc}
2749 : ${host_ld_default:=$host_cc}
2750 set_default ar as dep_cc ld host_ld
2751
2752 probe_cc as "$as"
2753 asflags_filter=$_flags_filter
2754 add_asflags $_flags $_cflags
2755 set_ccvars AS
2756
2757 probe_cc ld "$ld"
2758 ldflags_filter=$_flags_filter
2759 add_ldflags $_flags $_ldflags
2760 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2761 LD_O=${_ld_o-$LD_O}
2762 LD_LIB=${_ld_lib-$LD_LIB}
2763 LD_PATH=${_ld_path-$LD_PATH}
2764
2765 probe_cc hostld "$host_ld"
2766 host_ldflags_filter=$_flags_filter
2767 add_host_ldflags $_flags $_ldflags
2768 HOSTLD_O=${_ld_o-$HOSTLD_O}
2769
2770 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2771     probe_cc depcc "$dep_cc"
2772     CCDEP=${_DEPCMD:-$DEPCMD}
2773     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2774     DEPCCFLAGS=$_flags
2775 fi
2776
2777 if $ar 2>&1 | grep -q Microsoft; then
2778     arflags="-nologo"
2779     ar_o='-out:$@'
2780 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2781     arflags="rq"
2782     ar_o='$@'
2783 else
2784     arflags="rc"
2785     ar_o='$@'
2786 fi
2787
2788 add_cflags $extra_cflags
2789 add_cxxflags $extra_cxxflags
2790 add_asflags $extra_cflags
2791
2792 if test -n "$sysroot"; then
2793     case "$cc_type" in
2794         gcc|llvm_gcc|clang)
2795             add_cppflags --sysroot="$sysroot"
2796             add_ldflags --sysroot="$sysroot"
2797         ;;
2798         tms470)
2799             add_cppflags -I"$sysinclude"
2800             add_ldflags  --sysroot="$sysroot"
2801         ;;
2802     esac
2803 fi
2804
2805 if test "$cpu" = host; then
2806     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2807
2808     case "$cc_type" in
2809         gcc|llvm_gcc)
2810             check_native(){
2811                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2812                 sed -n "/cc1.*$1=/{
2813                             s/.*$1=\\([^ ]*\\).*/\\1/
2814                             p
2815                             q
2816                         }" $TMPE
2817             }
2818             cpu=$(check_native -march || check_native -mcpu)
2819         ;;
2820     esac
2821
2822     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2823 fi
2824
2825 # Deal with common $arch aliases
2826 case "$arch" in
2827     aarch64|arm64)
2828         arch="aarch64"
2829     ;;
2830     arm*|iPad*)
2831         arch="arm"
2832     ;;
2833     mips*|IP*)
2834         arch="mips"
2835     ;;
2836     parisc*|hppa*)
2837         arch="parisc"
2838     ;;
2839     "Power Macintosh"|ppc*|powerpc*)
2840         arch="ppc"
2841     ;;
2842     s390|s390x)
2843         arch="s390"
2844     ;;
2845     sh4|sh)
2846         arch="sh4"
2847     ;;
2848     sun4u|sparc*)
2849         arch="sparc"
2850     ;;
2851     tilegx|tile-gx)
2852         arch="tilegx"
2853     ;;
2854     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2855         arch="x86"
2856     ;;
2857 esac
2858
2859 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2860 enable $arch
2861
2862 # Add processor-specific flags
2863 if enabled aarch64; then
2864
2865     case $cpu in
2866         armv*)
2867             cpuflags="-march=$cpu"
2868         ;;
2869         *)
2870             cpuflags="-mcpu=$cpu"
2871         ;;
2872     esac
2873
2874 elif enabled alpha; then
2875
2876     cpuflags="-mcpu=$cpu"
2877
2878 elif enabled arm; then
2879
2880     check_arm_arch() {
2881         check_cpp_condition stddef.h \
2882             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2883             $cpuflags
2884     }
2885
2886     probe_arm_arch() {
2887         if   check_arm_arch 4;        then echo armv4;
2888         elif check_arm_arch 4T;       then echo armv4t;
2889         elif check_arm_arch 5;        then echo armv5;
2890         elif check_arm_arch 5E;       then echo armv5e;
2891         elif check_arm_arch 5T;       then echo armv5t;
2892         elif check_arm_arch 5TE;      then echo armv5te;
2893         elif check_arm_arch 5TEJ;     then echo armv5te;
2894         elif check_arm_arch 6;        then echo armv6;
2895         elif check_arm_arch 6J;       then echo armv6j;
2896         elif check_arm_arch 6K;       then echo armv6k;
2897         elif check_arm_arch 6Z;       then echo armv6z;
2898         elif check_arm_arch 6ZK;      then echo armv6zk;
2899         elif check_arm_arch 6T2;      then echo armv6t2;
2900         elif check_arm_arch 7;        then echo armv7;
2901         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2902         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2903         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2904         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2905         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2906         fi
2907     }
2908
2909     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2910
2911     case $cpu in
2912         armv*)
2913             cpuflags="-march=$cpu"
2914             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2915         ;;
2916         *)
2917             cpuflags="-mcpu=$cpu"
2918             case $cpu in
2919                 cortex-a*)                               subarch=armv7a  ;;
2920                 cortex-r*)                               subarch=armv7r  ;;
2921                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2922                 arm11*)                                  subarch=armv6   ;;
2923                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2924                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2925                 *)                             subarch=$(probe_arm_arch) ;;
2926             esac
2927         ;;
2928     esac
2929
2930     case "$subarch" in
2931         armv5t*)    enable fast_clz                ;;
2932         armv[6-8]*) enable fast_clz fast_unaligned ;;
2933     esac
2934
2935 elif enabled avr32; then
2936
2937     case $cpu in
2938         ap7[02]0[0-2])
2939             subarch="avr32_ap"
2940             cpuflags="-mpart=$cpu"
2941         ;;
2942         ap)
2943             subarch="avr32_ap"
2944             cpuflags="-march=$cpu"
2945         ;;
2946         uc3[ab]*)
2947             subarch="avr32_uc"
2948             cpuflags="-mcpu=$cpu"
2949         ;;
2950         uc)
2951             subarch="avr32_uc"
2952             cpuflags="-march=$cpu"
2953         ;;
2954     esac
2955
2956 elif enabled bfin; then
2957
2958     cpuflags="-mcpu=$cpu"
2959
2960 elif enabled mips; then
2961
2962     cpuflags="-march=$cpu"
2963
2964     case $cpu in
2965         24kc)
2966             disable mipsfpu
2967             disable mipsdspr1
2968             disable mipsdspr2
2969         ;;
2970         24kf*)
2971             disable mipsdspr1
2972             disable mipsdspr2
2973         ;;
2974         24kec|34kc|1004kc)
2975             disable mipsfpu
2976             disable mipsdspr2
2977         ;;
2978         24kef*|34kf*|1004kf*)
2979             disable mipsdspr2
2980         ;;
2981         74kc)
2982             disable mipsfpu
2983         ;;
2984     esac
2985
2986 elif enabled ppc; then
2987
2988     case $(tolower $cpu) in
2989         601|ppc601|powerpc601)
2990             cpuflags="-mcpu=601"
2991             disable altivec
2992         ;;
2993         603*|ppc603*|powerpc603*)
2994             cpuflags="-mcpu=603"
2995             disable altivec
2996         ;;
2997         604*|ppc604*|powerpc604*)
2998             cpuflags="-mcpu=604"
2999             disable altivec
3000         ;;
3001         g3|75*|ppc75*|powerpc75*)
3002             cpuflags="-mcpu=750"
3003             disable altivec
3004         ;;
3005         g4|745*|ppc745*|powerpc745*)
3006             cpuflags="-mcpu=7450"
3007         ;;
3008         74*|ppc74*|powerpc74*)
3009             cpuflags="-mcpu=7400"
3010         ;;
3011         g5|970|ppc970|powerpc970)
3012             cpuflags="-mcpu=970"
3013         ;;
3014         power[3-7]*)
3015             cpuflags="-mcpu=$cpu"
3016         ;;
3017         cell)
3018             cpuflags="-mcpu=cell"
3019             enable ldbrx
3020         ;;
3021         e500mc)
3022             cpuflags="-mcpu=e500mc"
3023             disable altivec
3024         ;;
3025         e500v2)
3026             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3027             disable altivec
3028         ;;
3029         e500)
3030             cpuflags="-mcpu=8540 -mhard-float"
3031             disable altivec
3032         ;;
3033     esac
3034
3035 elif enabled sparc; then
3036
3037     case $cpu in
3038         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3039             cpuflags="-mcpu=$cpu"
3040             disable vis
3041         ;;
3042         ultrasparc*|niagara[234])
3043             cpuflags="-mcpu=$cpu"
3044         ;;
3045     esac
3046
3047 elif enabled x86; then
3048
3049     case $cpu in
3050         i[345]86|pentium)
3051             cpuflags="-march=$cpu"
3052             disable mmx
3053         ;;
3054         # targets that do NOT support conditional mov (cmov)
3055         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3056             cpuflags="-march=$cpu"
3057             disable cmov
3058         ;;
3059         # targets that do support conditional mov (cmov)
3060         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3061             cpuflags="-march=$cpu"
3062             enable cmov
3063             enable fast_cmov
3064         ;;
3065         # targets that do support conditional mov but on which it's slow
3066         pentium4|pentium4m|prescott|nocona)
3067             cpuflags="-march=$cpu"
3068             enable cmov
3069             disable fast_cmov
3070         ;;
3071     esac
3072
3073 fi
3074
3075 if [ "$cpu" != generic ]; then
3076     add_cflags  $cpuflags
3077     add_asflags $cpuflags
3078 fi
3079
3080 # compiler sanity check
3081 check_exec <<EOF
3082 int main(void){ return 0; }
3083 EOF
3084 if test "$?" != 0; then
3085     echo "$cc is unable to create an executable file."
3086     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3087         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3088         echo "Only do this if you know what cross compiling means."
3089     fi
3090     die "C compiler test failed."
3091 fi
3092
3093 add_cppflags -D_ISOC99_SOURCE
3094 add_cxxflags -D__STDC_CONSTANT_MACROS
3095 check_cflags -std=c99
3096 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3097 #include <stdlib.h>
3098 EOF
3099 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3100 #include <stdlib.h>
3101 EOF
3102
3103 check_host_cflags -std=c99
3104 check_host_cflags -Wall
3105
3106 check_64bit(){
3107     arch32=$1
3108     arch64=$2
3109     expr=$3
3110     check_code cc "" "int test[2*($expr) - 1]" &&
3111         subarch=$arch64 || subarch=$arch32
3112 }
3113
3114 case "$arch" in
3115     aarch64|alpha|ia64)
3116         spic=$shared
3117     ;;
3118     mips)
3119         check_64bit mips mips64 '_MIPS_SIM > 1'
3120         spic=$shared
3121     ;;
3122     parisc)
3123         check_64bit parisc parisc64 'sizeof(void *) > 4'
3124         spic=$shared
3125     ;;
3126     ppc)
3127         check_64bit ppc ppc64 'sizeof(void *) > 4'
3128         spic=$shared
3129     ;;
3130     sparc)
3131         check_64bit sparc sparc64 'sizeof(void *) > 4'
3132         spic=$shared
3133     ;;
3134     x86)
3135         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3136         if test "$subarch" = "x86_64"; then
3137             spic=$shared
3138         fi
3139     ;;
3140     ppc)
3141         check_cc <<EOF && subarch="ppc64"
3142         int test[(int)sizeof(char*) - 7];
3143 EOF
3144     ;;
3145 esac
3146
3147 enable $subarch
3148 enabled spic && enable pic
3149
3150 # OS specific
3151 case $target_os in
3152     haiku)
3153         prefix_default="/boot/common"
3154         network_extralibs="-lnetwork"
3155         host_libs=
3156         ;;
3157     sunos)
3158         FFSERVERLDFLAGS=""
3159         SHFLAGS='-shared -Wl,-h,$$(@F)'
3160         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3161         network_extralibs="-lsocket -lnsl"
3162         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3163         # When using suncc to build, the Solaris linker will mark
3164         # an executable with each instruction set encountered by
3165         # the Solaris assembler.  As our libraries contain their own
3166         # guards for processor-specific code, instead suppress
3167         # generation of the HWCAPS ELF section on Solaris x86 only.
3168         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3169         nm_default='nm -P -g'
3170         ;;
3171     netbsd)
3172         disable symver
3173         oss_indev_extralibs="-lossaudio"
3174         oss_outdev_extralibs="-lossaudio"
3175         enabled gcc || check_ldflags -Wl,-zmuldefs
3176         ;;
3177     openbsd|bitrig)
3178         disable symver
3179         SHFLAGS='-shared'
3180         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3181         SLIB_INSTALL_LINKS=
3182         oss_indev_extralibs="-lossaudio"
3183         oss_outdev_extralibs="-lossaudio"
3184         ;;
3185     dragonfly)
3186         disable symver
3187         ;;
3188     freebsd)
3189         ;;
3190     bsd/os)
3191         add_extralibs -lpoll -lgnugetopt
3192         strip="strip -d"
3193         ;;
3194     darwin)
3195         gas="gas-preprocessor.pl $cc"
3196         enabled ppc && add_asflags -force_cpusubtype_ALL
3197         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3198         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3199         strip="${strip} -x"
3200         add_ldflags -Wl,-dynamic,-search_paths_first
3201         SLIBSUF=".dylib"
3202         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3203         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3204         FFSERVERLDFLAGS=-Wl,-bind_at_load
3205         objformat="macho"
3206         enabled x86_64 && objformat="macho64"
3207         enabled_any pic shared ||
3208             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3209         ;;
3210     mingw32*)
3211         if test $target_os = "mingw32ce"; then
3212             disable network
3213         else
3214             target_os=mingw32
3215         fi
3216         LIBTARGET=i386
3217         if enabled x86_64; then
3218             LIBTARGET="i386:x86-64"
3219         elif enabled arm; then
3220             LIBTARGET=arm-wince
3221         fi
3222         shlibdir_default="$bindir_default"
3223         SLIBPREF=""
3224         SLIBSUF=".dll"
3225         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3226         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3227         dlltool="${cross_prefix}dlltool"
3228         if check_cmd lib.exe -list; then
3229             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3230             if enabled x86_64; then
3231                 LIBTARGET=x64
3232             fi
3233         elif check_cmd $dlltool --version; then
3234             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3235         fi
3236         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3237         SLIB_INSTALL_LINKS=
3238         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3239         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3240         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3241         objformat="win32"
3242         ranlib=:
3243         enable dos_paths
3244         ;;
3245     win32|win64)
3246         if enabled shared; then
3247             # Link to the import library instead of the normal static library
3248             # for shared libs.
3249             LD_LIB='%.lib'
3250             # Cannot build shared and static libraries at the same time with
3251             # MSVC.
3252             disable static
3253         fi
3254         shlibdir_default="$bindir_default"
3255         SLIBPREF=""
3256         SLIBSUF=".dll"
3257         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3258         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3259         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3260         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3261         SLIB_INSTALL_LINKS=
3262         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3263         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3264         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3265         objformat="win32"
3266         ranlib=:
3267         enable dos_paths
3268         ;;
3269     cygwin*)
3270         target_os=cygwin
3271         shlibdir_default="$bindir_default"
3272         SLIBPREF="cyg"
3273         SLIBSUF=".dll"
3274         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3275         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3276         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3277         SLIB_INSTALL_LINKS=
3278         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3279         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3280         objformat="win32"
3281         enable dos_paths
3282         ;;
3283     *-dos|freedos|opendos)
3284         network_extralibs="-lsocket"
3285         objformat="coff"
3286         enable dos_paths
3287         add_cppflags -U__STRICT_ANSI__
3288         ;;
3289     linux)
3290         enable dv1394
3291         ;;
3292     irix*)
3293         target_os=irix
3294         ranlib="echo ignoring ranlib"
3295         ;;
3296     os/2*)
3297         strip="lxlite -CS"
3298         ln_s="cp -f"
3299         objformat="aout"
3300         add_cppflags -D_GNU_SOURCE
3301         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3302         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3303         FFSERVERLDFLAGS=""
3304         LIBSUF="_s.a"
3305         SLIBPREF=""
3306         SLIBSUF=".dll"
3307         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3308         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3309         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3310             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3311             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3312             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3313             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3314             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3315         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3316             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3317         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3318         enable dos_paths
3319         enable_weak os2threads
3320         ;;
3321     gnu/kfreebsd)
3322         add_cppflags -D_BSD_SOURCE
3323         ;;
3324     gnu)
3325         ;;
3326     qnx)
3327         add_cppflags -D_QNX_SOURCE
3328         network_extralibs="-lsocket"
3329         ;;
3330     symbian)
3331         SLIBSUF=".dll"
3332         enable dos_paths
3333         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3334         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3335         add_ldflags -Wl,--target1-abs,--no-undefined \
3336                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3337                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3338         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3339                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3340                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3341         ;;
3342     osf1)
3343         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3344         FFSERVERLDFLAGS=
3345         ;;
3346     minix)
3347         ;;
3348     plan9)
3349         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3350                      -D_REENTRANT_SOURCE        \
3351                      -D_RESEARCH_SOURCE         \
3352                      -DFD_SETSIZE=96            \
3353                      -DHAVE_SOCK_OPTS
3354         add_compat strtod.o strtod=avpriv_strtod
3355         network_extralibs='-lbsd'
3356         exeobjs=compat/plan9/main.o
3357         disable ffserver
3358         ln_s='ln -s -f'
3359         cp_f='cp'
3360         ;;
3361     none)
3362         ;;
3363     *)
3364         die "Unknown OS '$target_os'."
3365         ;;
3366 esac
3367
3368 # determine libc flavour
3369
3370 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3371 if check_cpp_condition features.h "defined __UCLIBC__"; then
3372     libc_type=uclibc
3373     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3374 elif check_cpp_condition features.h "defined __GLIBC__"; then
3375     libc_type=glibc
3376     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3377 # MinGW headers can be installed on Cygwin, so check for newlib first.
3378 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3379     libc_type=newlib
3380     add_cppflags -U__STRICT_ANSI__
3381 elif check_header _mingw.h; then
3382     libc_type=mingw
3383     check_cpp_condition _mingw.h \
3384         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3385             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3386         die "ERROR: MinGW runtime version must be >= 3.15."
3387     add_cppflags -U__STRICT_ANSI__
3388     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3389             __MINGW64_VERSION_MAJOR < 3"; then
3390         add_compat msvcrt/snprintf.o
3391         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3392     fi
3393 elif check_func_headers stdlib.h _get_doserrno; then
3394     libc_type=msvcrt
3395     add_compat strtod.o strtod=avpriv_strtod
3396     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3397                                  _snprintf=avpriv_snprintf  \
3398                                  vsnprintf=avpriv_vsnprintf
3399 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3400     libc_type=klibc
3401 fi
3402
3403 test -n "$libc_type" && enable $libc_type
3404
3405 # hacks for compiler/libc/os combinations
3406
3407 if enabled_all tms470 glibc; then
3408     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3409     add_cppflags -D__USER_LABEL_PREFIX__=
3410     add_cppflags -D__builtin_memset=memset
3411     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3412     add_cflags   -pds=48    # incompatible redefinition of macro
3413 fi
3414
3415 if enabled_all ccc glibc; then
3416     add_ldflags -Wl,-z,now  # calls to libots crash without this
3417 fi
3418
3419 esc(){
3420     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3421 }
3422
3423 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3424
3425 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3426
3427 set_default $PATHS_LIST
3428 set_default nm
3429
3430 # we need to build at least one lib type
3431 if ! enabled_any static shared; then
3432     cat <<EOF
3433 At least one library type must be built.
3434 Specify --enable-static to build the static libraries or --enable-shared to
3435 build the shared libraries as well. To only build the shared libraries specify
3436 --disable-static in addition to --enable-shared.
3437 EOF
3438     exit 1;
3439 fi
3440
3441 die_license_disabled() {
3442     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3443 }
3444
3445 die_license_disabled_gpl() {
3446     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3447 }
3448
3449 die_license_disabled gpl libcdio
3450 die_license_disabled gpl libutvideo
3451 die_license_disabled gpl libx264
3452 die_license_disabled gpl libxavs
3453 die_license_disabled gpl libxvid
3454 die_license_disabled gpl x11grab
3455
3456 die_license_disabled nonfree libaacplus
3457 die_license_disabled nonfree libfaac
3458 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3459 enabled gpl && die_license_disabled_gpl nonfree openssl
3460
3461 die_license_disabled version3 libopencore_amrnb
3462 die_license_disabled version3 libopencore_amrwb
3463 die_license_disabled version3 libvo_aacenc
3464 die_license_disabled version3 libvo_amrwbenc
3465
3466 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3467
3468 disabled optimizations || check_cflags -fomit-frame-pointer
3469
3470 enable_pic() {
3471     enable pic
3472     add_cppflags -DPIC
3473     add_cflags   -fPIC
3474     add_asflags  -fPIC
3475 }
3476
3477 enabled pic && enable_pic
3478
3479 check_cc <<EOF || die "Symbol mangling check failed."
3480 int ff_extern;
3481 EOF
3482 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3483 extern_prefix=${sym%%ff_extern*}
3484
3485 check_cc <<EOF && enable_weak inline_asm
3486 void foo(void) { __asm__ volatile ("" ::); }
3487 EOF
3488
3489 _restrict=
3490 for restrict_keyword in restrict __restrict__ __restrict; do
3491     check_cc <<EOF && _restrict=$restrict_keyword && break
3492 void foo(char * $restrict_keyword p);
3493 EOF
3494 done
3495
3496 check_cc <<EOF && enable attribute_packed
3497 struct { int x; } __attribute__((packed)) x;
3498 EOF
3499
3500 check_cc <<EOF && enable attribute_may_alias
3501 union { int x; } __attribute__((may_alias)) x;
3502 EOF
3503
3504 check_cc <<EOF || die "endian test failed"
3505 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3506 EOF
3507 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3508
3509 if enabled alpha; then
3510
3511     check_cflags -mieee
3512
3513 elif enabled arm; then
3514
3515     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3516 float func(float a, float b){ return a+b; }
3517 EOF
3518
3519     enabled thumb && check_cflags -mthumb || check_cflags -marm
3520     nogas=die
3521
3522     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3523         enable vfp_args
3524     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3525         case "${cross_prefix:-$cc}" in
3526             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3527             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3528 __asm__ (".eabi_attribute 28, 1");
3529 int main(void) { return 0; }
3530 EOF
3531         esac
3532         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3533     fi
3534
3535     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3536     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3537     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3538     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3539     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3540     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3541
3542     [ $target_os = linux ] ||
3543         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3544             $ARCH_EXT_LIST_ARM
3545
3546     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3547     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3548
3549     enabled_all armv6t2 shared !pic && enable_pic
3550
3551 elif enabled mips; then
3552
3553     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3554     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3555      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3556     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3557      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3558     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3559      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3560     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3561      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3562
3563 elif enabled parisc; then
3564
3565     if enabled gcc; then
3566         case $($cc -dumpversion) in
3567             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3568         esac
3569     fi
3570
3571 elif enabled ppc; then
3572
3573     enable local_aligned_8 local_aligned_16
3574
3575     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3576     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3577     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3578     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3579
3580     # AltiVec flags: The FSF version of GCC differs from the Apple version
3581     if enabled altivec; then
3582         nogas=warn
3583         check_cflags -maltivec -mabi=altivec &&
3584         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3585         check_cflags -faltivec
3586
3587         # check if our compiler supports Motorola AltiVec C API
3588         check_cc <<EOF || disable altivec
3589 $inc_altivec_h
3590 int main(void) {
3591     vector signed int v1 = (vector signed int) { 0 };
3592     vector signed int v2 = (vector signed int) { 1 };
3593     v1 = vec_add(v1, v2);
3594     return 0;
3595 }
3596 EOF
3597
3598         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3599     fi
3600
3601 elif enabled sparc; then
3602
3603     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3604
3605 elif enabled x86; then
3606
3607     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3608
3609     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3610
3611     enable local_aligned_8 local_aligned_16
3612
3613     # check whether EBP is available on x86
3614     # As 'i' is stored on the stack, this program will crash
3615     # if the base pointer is used to access it because the
3616     # base pointer is cleared in the inline assembly code.
3617     check_exec_crash <<EOF && enable ebp_available
3618 volatile int i=0;
3619 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3620 return i;
3621 EOF
3622
3623     # check whether EBX is available on x86
3624     check_inline_asm ebx_available '""::"b"(0)' &&
3625         check_inline_asm ebx_available '"":::"%ebx"'
3626
3627     # check whether xmm clobbers are supported
3628     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3629
3630     # check whether binutils is new enough to compile SSSE3/MMXEXT
3631     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3632     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3633
3634     if ! disabled_any asm mmx yasm; then
3635         if check_cmd $yasmexe --version; then
3636             enabled x86_64 && yasm_extra="-m amd64"
3637             yasm_debug="-g dwarf2"
3638         elif check_cmd nasm -v; then
3639             yasmexe=nasm
3640             yasm_debug="-g -F dwarf"
3641             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3642         fi
3643
3644         YASMFLAGS="-f $objformat $yasm_extra"
3645         enabled pic               && append YASMFLAGS "-DPIC"
3646         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3647         case "$objformat" in
3648             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3649         esac
3650
3651         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3652             die "yasm not found, use --disable-yasm for a crippled build"
3653         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3654         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3655         check_yasm "CPU amdnop" && enable cpunop
3656     fi
3657
3658     case "$cpu" in
3659         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3660             disable fast_clz
3661         ;;
3662     esac
3663
3664 fi
3665
3666 if enabled asm; then
3667     as=${gas:=$as}
3668     check_as <<EOF && enable gnu_as || \
3669         $nogas "GNU assembler not found, install gas-preprocessor"
3670 .macro m n
3671 \n: .int 0
3672 .endm
3673 m x
3674 EOF
3675 fi
3676
3677 check_ldflags -Wl,--as-needed
3678
3679 if check_func dlopen; then
3680     ldl=
3681 elif check_func dlopen -ldl; then
3682     ldl=-ldl
3683 fi
3684
3685 if ! disabled network; then
3686     check_type "sys/types.h sys/socket.h" socklen_t
3687     check_type netdb.h "struct addrinfo"
3688     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3689     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3690     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3691     check_type netinet/in.h "struct sockaddr_in6"
3692     check_type poll.h "struct pollfd"
3693     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3694     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3695     check_type netinet/sctp.h "struct sctp_event_subscribe"
3696     check_func getaddrinfo $network_extralibs
3697     check_func getservbyport $network_extralibs
3698     # Prefer arpa/inet.h over winsock2
3699     if check_header arpa/inet.h ; then
3700         check_func closesocket
3701     elif check_header winsock2.h ; then
3702         check_func_headers winsock2.h closesocket -lws2 &&
3703             network_extralibs="-lws2" ||
3704         { check_func_headers winsock2.h closesocket -lws2_32 &&
3705             network_extralibs="-lws2_32"; }
3706         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3707         check_type ws2tcpip.h socklen_t
3708         check_type ws2tcpip.h "struct addrinfo"
3709         check_type ws2tcpip.h "struct group_source_req"
3710         check_type ws2tcpip.h "struct ip_mreq_source"
3711         check_type ws2tcpip.h "struct ipv6_mreq"
3712         check_type winsock2.h "struct pollfd"
3713         check_type ws2tcpip.h "struct sockaddr_in6"
3714         check_type ws2tcpip.h "struct sockaddr_storage"
3715         check_struct winsock2.h "struct sockaddr" sa_len
3716     else
3717         disable network
3718     fi
3719 fi
3720
3721 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3722 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3723
3724 check_func  access
3725 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3726 check_func  fcntl
3727 check_func  fork
3728 check_func  gethrtime
3729 check_func  getopt
3730 check_func  getrusage
3731 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3732 check_func  gettimeofday
3733 check_func  iconv || check_lib2 iconv.h iconv -liconv
3734 check_func  inet_aton $network_extralibs
3735 check_func  isatty
3736 check_func  localtime_r
3737 check_func  ${malloc_prefix}memalign            && enable memalign
3738 check_func  mkstemp
3739 check_func  mmap
3740 check_func  mprotect
3741 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3742 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3743 check_func  setrlimit
3744 check_func  strerror_r
3745 check_func  sched_getaffinity
3746 check_func  sysconf
3747 check_func  sysctl
3748 check_func  usleep
3749 check_func_headers conio.h kbhit
3750 check_func_headers windows.h PeekNamedPipe
3751 check_func_headers io.h setmode
3752 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3753 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3754 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3755 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3756 check_func_headers windows.h GetProcessAffinityMask
3757 check_func_headers windows.h GetProcessTimes
3758 check_func_headers windows.h GetSystemTimeAsFileTime
3759 check_func_headers windows.h MapViewOfFile
3760 check_func_headers windows.h SetConsoleTextAttribute
3761 check_func_headers windows.h Sleep
3762 check_func_headers windows.h VirtualAlloc
3763 check_func_headers glob.h glob
3764
3765 check_header direct.h
3766 check_header dlfcn.h
3767 check_header dxva.h
3768 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3769 check_header io.h
3770 check_header libcrystalhd/libcrystalhd_if.h
3771 check_header malloc.h
3772 check_header poll.h
3773 check_header sys/mman.h
3774 check_header sys/param.h
3775 check_header sys/resource.h
3776 check_header sys/select.h
3777 check_header sys/time.h
3778 check_header termios.h
3779 check_header unistd.h
3780 check_header vdpau/vdpau.h
3781 check_header vdpau/vdpau_x11.h
3782 check_header windows.h
3783 check_header X11/extensions/XvMClib.h
3784 check_header asm/types.h
3785
3786 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3787 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3788
3789 # check for VDA header
3790 if ! disabled vda && ! enabled ppc; then
3791     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3792         enable vda
3793         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3794     fi
3795 fi
3796
3797 if ! disabled w32threads && ! enabled pthreads; then
3798     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3799 fi
3800
3801 # check for some common methods of building with pthread support
3802 # do this before the optional library checks as some of them require pthreads
3803 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3804     enable pthreads
3805     if check_func pthread_create; then
3806         :
3807     elif check_func pthread_create -pthread; then
3808         add_cflags -pthread
3809         add_extralibs -pthread
3810     elif check_func pthread_create -pthreads; then
3811         add_cflags -pthreads
3812         add_extralibs -pthreads
3813     elif check_func pthread_create -lpthreadGC2; then
3814         add_extralibs -lpthreadGC2
3815     elif ! check_lib pthread.h pthread_create -lpthread; then
3816         disable pthreads
3817     fi
3818 fi
3819
3820 for thread in $THREADS_LIST; do
3821     if enabled $thread; then
3822         test -n "$thread_type" &&
3823             die "ERROR: Only one thread type must be selected." ||
3824             thread_type="$thread"
3825     fi
3826 done
3827
3828 if enabled pthreads; then
3829   check_func pthread_cancel
3830 fi
3831
3832 check_lib math.h sin -lm && LIBM="-lm"
3833 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3834 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3835
3836 atan2f_args=2
3837 ldexpf_args=2
3838 powf_args=2
3839
3840 for func in $MATH_FUNCS; do
3841     eval check_mathfunc $func \${${func}_args:-1}
3842 done
3843
3844 # these are off by default, so fail if requested and not available
3845 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3846 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3847 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3848 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3849 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3850 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3851 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3852 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3853 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3854                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3855                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3856 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3857 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3858 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3859 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"
3860 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3861 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3862 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3863                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3864                         done || die "ERROR: libgsm not found"; }
3865 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3866 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3867 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3868 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3869 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3870 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3871 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3872 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3873                          check_lib openjpeg.h opj_version -lopenjpeg ||
3874                          die "ERROR: libopenjpeg not found"; }
3875 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3876 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3877 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3878 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3879 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3880 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3881 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3882     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3883     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3884 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3885 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3886                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3887                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3888 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3889 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3890 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3891 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3892 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3893 enabled libvpx     && {
3894     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3895                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3896     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 ||
3897                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3898     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3899     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3900 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3901                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3902                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3903 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3904 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3905 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3906                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3907                         die "ERROR: openal not found"; } &&
3908                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3909                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3910 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3911                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3912                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3913                         die "ERROR: openssl not found"; }
3914
3915 if enabled gnutls; then
3916     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3917     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3918 fi
3919
3920 # libdc1394 check
3921 if enabled libdc1394; then
3922     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3923         enable libdc1394_2; } ||
3924     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3925         enable libdc1394_1; } ||
3926     die "ERROR: No version of libdc1394 found "
3927 fi
3928
3929 SDL_CONFIG="${cross_prefix}sdl-config"
3930 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3931     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3932     enable sdl &&
3933     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3934 else
3935   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3936     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3937     sdl_libs=$("${SDL_CONFIG}" --libs)
3938     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3939     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3940     enable sdl &&
3941     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3942   fi
3943 fi
3944 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3945
3946 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3947 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3948 perl --version > /dev/null 2>&1 && enable perl || disable perl
3949 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3950 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3951
3952 check_header linux/fb.h
3953 check_header linux/videodev.h
3954 check_header linux/videodev2.h
3955 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
3956
3957 check_header sys/videoio.h
3958
3959 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3960 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3961 # w32api 3.12 had it defined wrong
3962 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3963
3964 check_type "dshow.h" IBaseFilter
3965
3966 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3967 { check_header dev/bktr/ioctl_meteor.h &&
3968   check_header dev/bktr/ioctl_bt848.h; } ||
3969 { check_header machine/ioctl_meteor.h &&
3970   check_header machine/ioctl_bt848.h; } ||
3971 { check_header dev/video/meteor/ioctl_meteor.h &&
3972   check_header dev/video/bktr/ioctl_bt848.h; } ||
3973 check_header dev/ic/bt8xx.h
3974
3975 check_header sndio.h
3976 if check_struct sys/soundcard.h audio_buf_info bytes; then
3977     enable_safe sys/soundcard.h
3978 else
3979     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3980     #include <sys/soundcard.h>
3981     audio_buf_info abc;
3982 EOF
3983 fi
3984 check_header soundcard.h
3985
3986 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3987
3988 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3989     check_func jack_port_get_latency_range -ljack
3990
3991 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3992
3993 if enabled libcdio; then
3994     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
3995 fi
3996
3997 enabled x11grab                                           &&
3998 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3999 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4000 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4001
4002 if ! disabled vaapi; then
4003     check_lib va/va.h vaInitialize -lva && {
4004         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4005         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4006     } || disable vaapi
4007 fi
4008
4009 if ! disabled vdpau && enabled vdpau_vdpau_h; then
4010     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4011         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
4012 fi
4013
4014 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4015 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
4016 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"
4017
4018 # add some useful compiler flags if supported
4019 check_cflags -Wdeclaration-after-statement
4020 check_cflags -Wall
4021 check_cflags -Wno-parentheses
4022 check_cflags -Wno-switch
4023 check_cflags -Wno-format-zero-length
4024 check_cflags -Wdisabled-optimization
4025 check_cflags -Wpointer-arith
4026 check_cflags -Wredundant-decls
4027 check_cflags -Wno-pointer-sign
4028 check_cflags -Wwrite-strings
4029 check_cflags -Wtype-limits
4030 check_cflags -Wundef
4031 check_cflags -Wmissing-prototypes
4032 check_cflags -Wno-pointer-to-int-cast
4033 check_cflags -Wstrict-prototypes
4034 enabled extra_warnings && check_cflags -Winline
4035
4036 # add some linker flags
4037 check_ldflags -Wl,--warn-common
4038 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4039 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4040
4041 enabled xmm_clobber_test &&
4042     check_ldflags -Wl,--wrap,avcodec_open2              \
4043                   -Wl,--wrap,avcodec_decode_audio4      \
4044                   -Wl,--wrap,avcodec_decode_video2      \
4045                   -Wl,--wrap,avcodec_decode_subtitle2   \
4046                   -Wl,--wrap,avcodec_encode_audio2      \
4047                   -Wl,--wrap,avcodec_encode_video       \
4048                   -Wl,--wrap,avcodec_encode_subtitle    \
4049                   -Wl,--wrap,sws_scale ||
4050     disable xmm_clobber_test
4051
4052 echo "X{};" > $TMPV
4053 if test_ldflags -Wl,--version-script,$TMPV; then
4054     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4055     check_cc <<EOF && enable symver_asm_label
4056 void ff_foo(void) __asm__ ("av_foo@VERSION");
4057 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4058 EOF
4059     check_cc <<EOF && enable symver_gnu_asm
4060 __asm__(".symver ff_foo,av_foo@VERSION");
4061 void ff_foo(void) {}
4062 EOF
4063 fi
4064
4065 if [ -z "$optflags" ]; then
4066     if enabled small; then
4067         optflags=$cflags_size
4068     elif enabled optimizations; then
4069         optflags=$cflags_speed
4070     else
4071         optflags=$cflags_noopt
4072     fi
4073 fi
4074
4075 check_optflags(){
4076     check_cflags "$@"
4077     enabled lto && check_ldflags "$@"
4078 }
4079
4080
4081 if enabled lto; then
4082     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4083     check_cflags  -flto
4084     check_ldflags -flto $cpuflags
4085 fi
4086
4087 check_optflags $optflags
4088 check_optflags -fno-math-errno
4089 check_optflags -fno-signed-zeros
4090
4091 enabled ftrapv && check_cflags -ftrapv
4092
4093 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4094 int x;
4095 EOF
4096
4097
4098 if enabled icc; then
4099     # Just warnings, no remarks
4100     check_cflags -w1
4101     # -wd: Disable following warnings
4102     # 144, 167, 556: -Wno-pointer-sign
4103     # 188: enumerated type mixed with another type
4104     # 1292: attribute "foo" ignored
4105     # 1419: external declaration in primary source file
4106     # 10006: ignoring unknown option -fno-signed-zeros
4107     # 10148: ignoring unknown option -Wno-parentheses
4108     # 10156: ignoring option '-W'; no argument required
4109     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4110     # 11030: Warning unknown option --as-needed
4111     # 10156: ignoring option '-export'; no argument required
4112     check_ldflags -wd10156,11030
4113     # Allow to compile with optimizations
4114     check_ldflags -march=$cpu
4115     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4116     enable ebp_available
4117     if enabled x86_32; then
4118         icc_version=$($cc -dumpversion)
4119         test ${icc_version%%.*} -ge 11 &&
4120             check_cflags -falign-stack=maintain-16-byte ||
4121             disable aligned_stack
4122     fi
4123 elif enabled ccc; then
4124     # disable some annoying warnings
4125     add_cflags -msg_disable bitnotint
4126     add_cflags -msg_disable mixfuncvoid
4127     add_cflags -msg_disable nonstandcast
4128     add_cflags -msg_disable unsupieee
4129 elif enabled gcc; then
4130     check_optflags -fno-tree-vectorize
4131     check_cflags -Werror=implicit-function-declaration
4132     check_cflags -Werror=missing-prototypes
4133     check_cflags -Werror=return-type
4134     check_cflags -Werror=vla
4135 elif enabled llvm_gcc; then
4136     check_cflags -mllvm -stack-alignment=16
4137 elif enabled clang; then
4138     check_cflags -mllvm -stack-alignment=16
4139     check_cflags -Qunused-arguments
4140     check_cflags -Werror=implicit-function-declaration
4141     check_cflags -Werror=missing-prototypes
4142     check_cflags -Werror=return-type
4143 elif enabled armcc; then
4144     # 2523: use of inline assembler is deprecated
4145     add_cflags -W${armcc_opt},--diag_suppress=2523
4146     add_cflags -W${armcc_opt},--diag_suppress=1207
4147     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4148     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4149     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4150     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4151 elif enabled tms470; then
4152     add_cflags -pds=824 -pds=837
4153 elif enabled pathscale; then
4154     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4155 elif enabled msvc; then
4156     enabled x86_32 && disable aligned_stack
4157 fi
4158
4159 case $target_os in
4160     osf1)
4161         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4162     ;;
4163     plan9)
4164         add_cppflags -Dmain=plan9_main
4165     ;;
4166 esac
4167
4168 enabled_any $THREADS_LIST      && enable threads
4169
4170 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4171
4172 check_deps $CONFIG_LIST       \
4173            $CONFIG_EXTRA      \
4174            $HAVE_LIST         \
4175            $ALL_COMPONENTS    \
4176
4177
4178 if test $target_os = "haiku"; then
4179     disable memalign
4180     disable posix_memalign
4181 fi
4182
4183 ! enabled_any memalign posix_memalign aligned_malloc &&
4184     enabled_any $need_memalign && enable memalign_hack
4185
4186 # add_dep lib dep
4187 # -> enable ${lib}_deps_${dep}
4188 # -> add $dep to ${lib}_deps only once
4189 add_dep() {
4190     lib=$1
4191     dep=$2
4192     enabled "${lib}_deps_${dep}" && return 0
4193     enable  "${lib}_deps_${dep}"
4194     prepend "${lib}_deps" $dep
4195 }
4196
4197 # merge deps lib components
4198 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4199 merge_deps() {
4200     lib=$1
4201     shift
4202     for comp in $*; do
4203         enabled $comp || continue
4204         eval "dep=\"\$${comp}_deps\""
4205         for d in $dep; do
4206             add_dep $lib $d
4207         done
4208     done
4209 }
4210
4211 merge_deps libavfilter $FILTER_LIST
4212
4213 echo "install prefix            $prefix"
4214 echo "source path               $source_path"
4215 echo "C compiler                $cc"
4216 echo "ARCH                      $arch ($cpu)"
4217 if test "$build_suffix" != ""; then
4218     echo "build suffix              $build_suffix"
4219 fi
4220 if test "$progs_suffix" != ""; then
4221     echo "progs suffix              $progs_suffix"
4222 fi
4223 if test "$extra_version" != ""; then
4224     echo "version string suffix     $extra_version"
4225 fi
4226 echo "big-endian                ${bigendian-no}"
4227 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4228 if enabled x86; then
4229     echo "${yasmexe}                      ${yasm-no}"
4230     echo "MMX enabled               ${mmx-no}"
4231     echo "MMXEXT enabled            ${mmxext-no}"
4232     echo "3DNow! enabled            ${amd3dnow-no}"
4233     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4234     echo "SSE enabled               ${sse-no}"
4235     echo "SSSE3 enabled             ${ssse3-no}"
4236     echo "AVX enabled               ${avx-no}"
4237     echo "FMA4 enabled              ${fma4-no}"
4238     echo "CMOV enabled              ${cmov-no}"
4239     echo "CMOV is fast              ${fast_cmov-no}"
4240     echo "EBX available             ${ebx_available-no}"
4241     echo "EBP available             ${ebp_available-no}"
4242 fi
4243 if enabled arm; then
4244     echo "ARMv5TE enabled           ${armv5te-no}"
4245     echo "ARMv6 enabled             ${armv6-no}"
4246     echo "ARMv6T2 enabled           ${armv6t2-no}"
4247     echo "VFP enabled               ${vfp-no}"
4248     echo "NEON enabled              ${neon-no}"
4249     echo "THUMB enabled             ${thumb-no}"
4250 fi
4251 if enabled mips; then
4252     echo "MIPS FPU enabled          ${mipsfpu-no}"
4253     echo "MIPS32R2 enabled          ${mips32r2-no}"
4254     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4255     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4256 fi
4257 if enabled ppc; then
4258     echo "AltiVec enabled           ${altivec-no}"
4259     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4260     echo "dcbzl available           ${dcbzl-no}"
4261 fi
4262 if enabled sparc; then
4263     echo "VIS enabled               ${vis-no}"
4264 fi
4265 echo "debug symbols             ${debug-no}"
4266 echo "strip symbols             ${stripping-no}"
4267 echo "optimize for size         ${small-no}"
4268 echo "optimizations             ${optimizations-no}"
4269 echo "static                    ${static-no}"
4270 echo "shared                    ${shared-no}"
4271 echo "postprocessing support    ${postproc-no}"
4272 echo "new filter support        ${avfilter-no}"
4273 echo "network support           ${network-no}"
4274 echo "threading support         ${thread_type-no}"
4275 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4276 echo "SDL support               ${sdl-no}"
4277 echo "AVISynth enabled          ${avisynth-no}"
4278 echo "frei0r enabled            ${frei0r-no}"
4279 echo "gnutls enabled            ${gnutls-no}"
4280 echo "libaacplus enabled        ${libaacplus-no}"
4281 echo "libass enabled            ${libass-no}"
4282 echo "libcaca enabled           ${libcaca-no}"
4283 echo "libcdio support           ${libcdio-no}"
4284 echo "libcelt enabled           ${libcelt-no}"
4285 echo "libdc1394 support         ${libdc1394-no}"
4286 echo "libfaac enabled           ${libfaac-no}"
4287 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4288 echo "libgsm enabled            ${libgsm-no}"
4289 echo "libiec61883 support       ${libiec61883-no}"
4290 echo "libilbc enabled           ${libilbc-no}"
4291 echo "libmodplug enabled        ${libmodplug-no}"
4292 echo "libmp3lame enabled        ${libmp3lame-no}"
4293 echo "libnut enabled            ${libnut-no}"
4294 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4295 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4296 echo "libopencv support         ${libopencv-no}"
4297 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4298 echo "libopus enabled           ${libopus-no}"
4299 echo "libpulse enabled          ${libpulse-no}"
4300 echo "librtmp enabled           ${librtmp-no}"
4301 echo "libschroedinger enabled   ${libschroedinger-no}"
4302 echo "libsoxr enabled           ${libsoxr-no}"
4303 echo "libspeex enabled          ${libspeex-no}"
4304 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4305 echo "libtheora enabled         ${libtheora-no}"
4306 echo "libtwolame enabled        ${libtwolame-no}"
4307 echo "libutvideo enabled        ${libutvideo-no}"
4308 echo "libv4l2 enabled           ${libv4l2-no}"
4309 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4310 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4311 echo "libvorbis enabled         ${libvorbis-no}"
4312 echo "libvpx enabled            ${libvpx-no}"
4313 echo "libx264 enabled           ${libx264-no}"
4314 echo "libxavs enabled           ${libxavs-no}"
4315 echo "libxvid enabled           ${libxvid-no}"
4316 echo "openal enabled            ${openal-no}"
4317 echo "openssl enabled           ${openssl-no}"
4318 echo "zlib enabled              ${zlib-no}"
4319 echo "bzlib enabled             ${bzlib-no}"
4320 echo "texi2html enabled         ${texi2html-no}"
4321 echo "perl enabled              ${perl-no}"
4322 echo "pod2man enabled           ${pod2man-no}"
4323 echo "makeinfo enabled          ${makeinfo-no}"
4324 test -n "$random_seed" &&
4325     echo "random seed               ${random_seed}"
4326 echo
4327
4328 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4329     echo "Enabled ${type}s:"
4330     eval list=\$$(toupper $type)_LIST
4331     print_enabled '_*' $list | print_3_columns
4332     echo
4333 done
4334
4335 license="LGPL version 2.1 or later"
4336 if enabled nonfree; then
4337     license="nonfree and unredistributable"
4338 elif enabled gplv3; then
4339     license="GPL version 3 or later"
4340 elif enabled lgplv3; then
4341     license="LGPL version 3 or later"
4342 elif enabled gpl; then
4343     license="GPL version 2 or later"
4344 fi
4345
4346 echo "License: $license"
4347
4348 echo "Creating config.mak and config.h..."
4349
4350 test -e Makefile || $ln_s "$source_path/Makefile" .
4351
4352 enabled stripping || strip="echo skipping strip"
4353
4354 config_files="$TMPH config.mak"
4355
4356 cat > config.mak <<EOF
4357 # Automatically generated by configure - do not modify!
4358 ifndef FFMPEG_CONFIG_MAK
4359 FFMPEG_CONFIG_MAK=1
4360 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4361 prefix=$prefix
4362 LIBDIR=\$(DESTDIR)$libdir
4363 SHLIBDIR=\$(DESTDIR)$shlibdir
4364 INCDIR=\$(DESTDIR)$incdir
4365 BINDIR=\$(DESTDIR)$bindir
4366 DATADIR=\$(DESTDIR)$datadir
4367 MANDIR=\$(DESTDIR)$mandir
4368 SRC_PATH=$source_path
4369 ifndef MAIN_MAKEFILE
4370 SRC_PATH:=\$(SRC_PATH:.%=..%)
4371 endif
4372 CC_IDENT=$cc_ident
4373 ARCH=$arch
4374 CC=$cc
4375 CXX=$cxx
4376 AS=$as
4377 LD=$ld
4378 DEPCC=$dep_cc
4379 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4380 DEPAS=$as
4381 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4382 YASM=$yasmexe
4383 DEPYASM=$yasmexe
4384 AR=$ar
4385 ARFLAGS=$arflags
4386 AR_O=$ar_o
4387 RANLIB=$ranlib
4388 CP=cp -p
4389 LN_S=$ln_s
4390 STRIP=$strip
4391 CPPFLAGS=$CPPFLAGS
4392 CFLAGS=$CFLAGS
4393 CXXFLAGS=$CXXFLAGS
4394 ASFLAGS=$ASFLAGS
4395 AS_C=$AS_C
4396 AS_O=$AS_O
4397 CC_C=$CC_C
4398 CC_E=$CC_E
4399 CC_O=$CC_O
4400 CXX_C=$CXX_C
4401 CXX_O=$CXX_O
4402 LD_O=$LD_O
4403 LD_LIB=$LD_LIB
4404 LD_PATH=$LD_PATH
4405 DLLTOOL=$dlltool
4406 LDFLAGS=$LDFLAGS
4407 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4408 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4409 YASMFLAGS=$YASMFLAGS
4410 BUILDSUF=$build_suffix
4411 PROGSSUF=$progs_suffix
4412 FULLNAME=$FULLNAME
4413 LIBPREF=$LIBPREF
4414 LIBSUF=$LIBSUF
4415 LIBNAME=$LIBNAME
4416 SLIBPREF=$SLIBPREF
4417 SLIBSUF=$SLIBSUF
4418 EXESUF=$EXESUF
4419 EXTRA_VERSION=$extra_version
4420 CCDEP=$CCDEP
4421 CXXDEP=$CXXDEP
4422 CCDEP_FLAGS=$CCDEP_FLAGS
4423 ASDEP=$ASDEP
4424 ASDEP_FLAGS=$ASDEP_FLAGS
4425 CC_DEPFLAGS=$CC_DEPFLAGS
4426 AS_DEPFLAGS=$AS_DEPFLAGS
4427 HOSTCC=$host_cc
4428 HOSTLD=$host_ld
4429 HOSTCFLAGS=$host_cflags
4430 HOSTEXESUF=$HOSTEXESUF
4431 HOSTLDFLAGS=$host_ldflags
4432 HOSTLIBS=$host_libs
4433 DEPHOSTCC=$host_cc
4434 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4435 HOSTCCDEP=$HOSTCCDEP
4436 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4437 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4438 HOSTCC_C=$HOSTCC_C
4439 HOSTCC_O=$HOSTCC_O
4440 HOSTLD_O=$HOSTLD_O
4441 TARGET_EXEC=$target_exec
4442 TARGET_PATH=$target_path
4443 LIBS-ffplay=$sdl_libs
4444 CFLAGS-ffplay=$sdl_cflags
4445 ZLIB=$($ldflags_filter -lz)
4446 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4447 EXTRALIBS=$extralibs
4448 COMPAT_OBJS=$compat_objs
4449 EXEOBJS=$exeobjs
4450 INSTALL=$install
4451 LIBTARGET=${LIBTARGET}
4452 SLIBNAME=${SLIBNAME}
4453 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4454 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4455 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4456 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4457 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4458 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4459 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4460 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4461 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4462 NOREDZONE_FLAGS=$noredzone_flags
4463 EOF
4464
4465 get_version(){
4466     lcname=lib${1}
4467     name=$(toupper $lcname)
4468     file=$source_path/$lcname/version.h
4469     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4470     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4471     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4472     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4473     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4474 }
4475
4476 map 'get_version $v' $LIBRARY_LIST
4477
4478 cat > $TMPH <<EOF
4479 /* Automatically generated by configure - do not modify! */
4480 #ifndef FFMPEG_CONFIG_H
4481 #define FFMPEG_CONFIG_H
4482 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4483 #define FFMPEG_LICENSE "$(c_escape $license)"
4484 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4485 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4486 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4487 #define av_restrict $_restrict
4488 #define EXTERN_PREFIX "${extern_prefix}"
4489 #define EXTERN_ASM ${extern_prefix}
4490 #define SLIBSUF "$SLIBSUF"
4491 #define HAVE_MMX2 HAVE_MMXEXT
4492 EOF
4493
4494 test -n "$assert_level" &&
4495     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4496
4497 test -n "$malloc_prefix" &&
4498     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4499
4500 if enabled yasm; then
4501     append config_files $TMPASM
4502     printf '' >$TMPASM
4503 fi
4504
4505 print_config ARCH_   "$config_files" $ARCH_LIST
4506 print_config HAVE_   "$config_files" $HAVE_LIST
4507 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4508                                      $CONFIG_EXTRA      \
4509                                      $ALL_COMPONENTS    \
4510
4511 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4512 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4513
4514 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4515 cp_if_changed $TMPH config.h
4516 touch .config
4517
4518 enabled yasm && cp_if_changed $TMPASM config.asm
4519
4520 cat > $TMPH <<EOF
4521 /* Generated by ffconf */
4522 #ifndef AVUTIL_AVCONFIG_H
4523 #define AVUTIL_AVCONFIG_H
4524 EOF
4525
4526 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4527
4528 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4529
4530 cp_if_changed $TMPH libavutil/avconfig.h
4531
4532 if test -n "$WARNINGS"; then
4533     printf "\n$WARNINGS"
4534     enabled fatal_warnings && exit 1
4535 fi
4536
4537 # build pkg-config files
4538
4539 pkgconfig_generate(){
4540     name=$1
4541     shortname=${name#lib}${build_suffix}
4542     comment=$2
4543     version=$3
4544     libs=$4
4545     requires=$5
4546     enabled ${name#lib} || return 0
4547     mkdir -p $name
4548     cat <<EOF > $name/$name${build_suffix}.pc
4549 prefix=$prefix
4550 exec_prefix=\${prefix}
4551 libdir=$libdir
4552 includedir=$incdir
4553
4554 Name: $name
4555 Description: $comment
4556 Version: $version
4557 Requires: $(enabled shared || echo $requires)
4558 Requires.private: $(enabled shared && echo $requires)
4559 Conflicts:
4560 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4561 Libs.private: $(enabled shared && echo $libs)
4562 Cflags: -I\${includedir}
4563 EOF
4564
4565 mkdir -p doc/examples/pc-uninstalled
4566 includedir=${source_path}
4567 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4568     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4569 prefix=
4570 exec_prefix=
4571 libdir=\${pcfiledir}/../../../$name
4572 includedir=${includedir}
4573
4574 Name: $name
4575 Description: $comment
4576 Version: $version
4577 Requires: $requires
4578 Conflicts:
4579 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4580 Cflags: -I\${includedir}
4581 EOF
4582 }
4583
4584 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4585 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4586 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4587 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4588 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4589 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4590 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4591 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4592
4593 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4594 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4595
4596 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4597 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4598 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4599 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4600 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4601 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4602 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4603 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4604 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4605
4606 fix_ffmpeg_remote(){
4607     git_remote_from=$1
4608     git_remote_to=$2
4609     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4610     if [ "$fixme_remote" != "" ]; then
4611         echolog "
4612 Outdated domain in git config, the official domain for ffmpeg git is since
4613 November 2011, source.ffmpeg.org, both the old and the new point to the same
4614 repository and server. To update it enter the following commands:
4615 "
4616         for remote in $fixme_remote; do
4617             echolog "git remote set-url $remote $git_remote_to"
4618         done
4619     fi
4620 }
4621
4622 if test -f "$source_path/.git/config"; then
4623     remote_from=git.videolan.org
4624     remote_to=source.ffmpeg.org
4625     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4626     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4627 fi