configure: add --disable-everything option
[libav.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken FFmpeg."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63 --help print this message
64 --logfile=FILE log tests and output to FILE [config.err]
65 --disable-logging do not log configure debug information
66 --prefix=PREFIX install in PREFIX [$prefix]
67 --bindir=DIR install binaries in DIR [PREFIX/bin]
68 --datadir=DIR install data files in DIR [PREFIX/share/ffmpeg]
69 --libdir=DIR install libs in DIR [PREFIX/lib]
70 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
71 --incdir=DIR install includes in DIR [PREFIX/include]
72 --mandir=DIR install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75 --disable-static do not build static libraries [no]
76 --enable-shared build shared libraries [no]
77 --enable-gpl allow use of GPL code, the resulting libs
78 and binaries will be under GPL [no]
79 --enable-version3 upgrade (L)GPL to version 3 [no]
80 --enable-nonfree allow use of nonfree code, the resulting libs
81 and binaries will be unredistributable [no]
82 --disable-doc do not build documentation
83 --disable-ffmpeg disable ffmpeg build
84 --disable-ffplay disable ffplay build
85 --disable-ffprobe disable ffprobe build
86 --disable-ffserver disable ffserver build
87 --disable-avdevice disable libavdevice build
88 --disable-avcodec disable libavcodec build
89 --disable-avformat disable libavformat build
90 --disable-swscale disable libswscale build
91 --enable-postproc enable GPLed postprocessing support [no]
92 --enable-avfilter video filter support [no]
93 --enable-avfilter-lavf video filters dependent on avformat [no]
94 --enable-beosthreads use BeOS threads [no]
95 --enable-os2threads use OS/2 threads [no]
96 --enable-pthreads use pthreads [no]
97 --enable-w32threads use Win32 threads [no]
98 --enable-x11grab enable X11 grabbing [no]
99 --disable-network disable network support [no]
100 --disable-mpegaudio-hp faster (but less accurate) MPEG audio decoding [no]
101 --enable-gray enable full grayscale support (slower color)
102 --disable-swscale-alpha disable alpha channel support in swscale
103 --disable-fastdiv disable table-based division
104 --enable-small optimize for size instead of speed
105 --disable-aandct disable AAN DCT code
106 --disable-dct disable DCT code
107 --disable-fft disable FFT code
108 --disable-golomb disable Golomb code
109 --disable-lpc disable LPC code
110 --disable-mdct disable MDCT code
111 --disable-rdft disable RDFT code
112 --disable-vaapi disable VAAPI code
113 --disable-vdpau disable VDPAU code
114 --disable-dxva2 disable DXVA2 code
115 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
116 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
117 --enable-memalign-hack emulate memalign, interferes with memory debuggers
118 --enable-beos-netserver enable BeOS netserver
119 --disable-encoder=NAME disable encoder NAME
120 --enable-encoder=NAME enable encoder NAME
121 --disable-encoders disable all encoders
122 --disable-decoder=NAME disable decoder NAME
123 --enable-decoder=NAME enable decoder NAME
124 --disable-decoders disable all decoders
125 --disable-hwaccel=NAME disable hwaccel NAME
126 --enable-hwaccel=NAME enable hwaccel NAME
127 --disable-hwaccels disable all hwaccels
128 --disable-muxer=NAME disable muxer NAME
129 --enable-muxer=NAME enable muxer NAME
130 --disable-muxers disable all muxers
131 --disable-demuxer=NAME disable demuxer NAME
132 --enable-demuxer=NAME enable demuxer NAME
133 --disable-demuxers disable all demuxers
134 --enable-parser=NAME enable parser NAME
135 --disable-parser=NAME disable parser NAME
136 --disable-parsers disable all parsers
137 --enable-bsf=NAME enable bitstream filter NAME
138 --disable-bsf=NAME disable bitstream filter NAME
139 --disable-bsfs disable all bitstream filters
140 --enable-protocol=NAME enable protocol NAME
141 --disable-protocol=NAME disable protocol NAME
142 --disable-protocols disable all protocols
143 --disable-indev=NAME disable input device NAME
144 --disable-outdev=NAME disable output device NAME
145 --disable-indevs disable input devices
146 --disable-outdevs disable output devices
147 --disable-devices disable all devices
148 --enable-filter=NAME enable filter NAME
149 --disable-filter=NAME disable filter NAME
150 --disable-filters disable all filters
151 --list-decoders show all available decoders
152 --list-encoders show all available encoders
153 --list-hwaccels show all available hardware accelerators
154 --list-muxers show all available muxers
155 --list-demuxers show all available demuxers
156 --list-parsers show all available parsers
157 --list-protocols show all available protocols
158 --list-bsfs show all available bitstream filters
159 --list-indevs show all available input devices
160 --list-outdevs show all available output devices
161 --list-filters show all available filters
162
163 External library support:
164 --enable-avisynth enable reading of AVISynth script files [no]
165 --enable-bzlib enable bzlib [autodetect]
166 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
167 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
168 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
169 and libraw1394 [no]
170 --enable-libdirac enable Dirac support via libdirac [no]
171 --enable-libfaac enable FAAC support via libfaac [no]
172 --enable-libfaad enable FAAD support via libfaad [no]
173 --enable-libfaadbin open libfaad.so.0 at runtime [no]
174 --enable-libgsm enable GSM support via libgsm [no]
175 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
176 --enable-libnut enable NUT (de)muxing via libnut,
177 native (de)muxer exists [no]
178 --enable-libopenjpeg enable JPEG 2000 decoding via OpenJPEG [no]
179 --enable-libschroedinger enable Dirac support via libschroedinger [no]
180 --enable-libspeex enable Speex decoding via libspeex [no]
181 --enable-libtheora enable Theora encoding via libtheora [no]
182 --enable-libvorbis enable Vorbis encoding via libvorbis,
183 native implementation exists [no]
184 --enable-libx264 enable H.264 encoding via x264 [no]
185 --enable-libxvid enable Xvid encoding via xvidcore,
186 native MPEG-4/Xvid encoder exists [no]
187 --enable-mlib enable Sun medialib [no]
188 --enable-zlib enable zlib [autodetect]
189
190 Advanced options (experts only):
191 --source-path=PATH path to source code [$source_path]
192 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
193 --enable-cross-compile assume a cross-compiler is used
194 --sysroot=PATH root of cross-build tree
195 --sysinclude=PATH location of cross-build system headers
196 --target-os=OS compiler targets OS [$target_os]
197 --target-exec=CMD command to run executables on target
198 --target-path=DIR path to view of build directory on target
199 --nm=NM use nm tool
200 --as=AS use assembler AS [$as_default]
201 --cc=CC use C compiler CC [$cc_default]
202 --ld=LD use linker LD
203 --host-cc=HOSTCC use host C compiler HOSTCC
204 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
205 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
206 --host-libs=HLIBS use libs HLIBS when linking for host
207 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
208 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
209 --extra-libs=ELIBS add ELIBS [$ELIBS]
210 --extra-version=STRING version string suffix []
211 --build-suffix=SUFFIX library name suffix []
212 --arch=ARCH select architecture [$arch]
213 --cpu=CPU select the minimum required CPU (affects
214 instruction selection, may crash on older CPUs)
215 --enable-powerpc-perf enable performance report on PPC
216 (requires enabling PMC)
217 --disable-asm disable all assembler optimizations
218 --disable-altivec disable AltiVec optimizations
219 --disable-amd3dnow disable 3DNow! optimizations
220 --disable-amd3dnowext disable 3DNow! extended optimizations
221 --disable-mmx disable MMX optimizations
222 --disable-mmx2 disable MMX2 optimizations
223 --disable-sse disable SSE optimizations
224 --disable-ssse3 disable SSSE3 optimizations
225 --disable-armv5te disable armv5te optimizations
226 --disable-armv6 disable armv6 optimizations
227 --disable-armv6t2 disable armv6t2 optimizations
228 --disable-armvfp disable ARM VFP optimizations
229 --disable-iwmmxt disable iwmmxt optimizations
230 --disable-mmi disable MMI optimizations
231 --disable-neon disable neon optimizations
232 --disable-vis disable VIS optimizations
233 --disable-yasm disable use of yasm assembler
234 --enable-pic build position-independent code
235 --malloc-prefix=PFX prefix malloc and related names with PFX
236 --enable-sram allow use of on-chip SRAM
237
238 Developer options (useful when working on FFmpeg itself):
239 --disable-debug disable debugging symbols
240 --enable-debug=LEVEL set the debug level [$debuglevel]
241 --enable-gprof enable profiling with gprof [$gprof]
242 --disable-optimizations disable compiler optimizations
243 --enable-extra-warnings enable more compiler warnings
244 --disable-stripping disable stripping of executables and shared libraries
245
246 NOTE: Object files are built at the place where configure is launched.
247 EOF
248 exit 0
249 }
250
251 log(){
252 echo "$@" >> $logfile
253 }
254
255 log_file(){
256 log BEGIN $1
257 pr -n -t $1 >> $logfile
258 log END $1
259 }
260
261 echolog(){
262 log "$@"
263 echo "$@"
264 }
265
266 die(){
267 echolog "$@"
268 cat <<EOF
269
270 If you think configure made a mistake, make sure you are using the latest
271 version from SVN. If the latest version fails, report the problem to the
272 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
273 EOF
274 if disabled logging; then
275 cat <<EOF
276 Rerun configure with logging enabled (do not use --disable-logging), and
277 include the log this produces with your report.
278 EOF
279 else
280 cat <<EOF
281 Include the log file "$logfile" produced by configure as this will help
282 solving the problem.
283 EOF
284 fi
285 exit 1
286 }
287
288 # Avoid locale weirdness, besides we really just want to translate ASCII.
289 toupper(){
290 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
291 }
292
293 tolower(){
294 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
295 }
296
297 c_escape(){
298 echo "$*" | sed 's/["\\]/\\\0/g'
299 }
300
301 sh_quote(){
302 v=$(echo "$1" | sed "s/'/'\\\\''/g")
303 test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
304 echo "$v"
305 }
306
307 filter(){
308 pat=$1
309 shift
310 for v; do
311 eval "case $v in $pat) echo $v ;; esac"
312 done
313 }
314
315 map(){
316 m=$1
317 shift
318 for _; do; eval $m; done
319 }
320
321 set_all(){
322 value=$1
323 shift
324 for var in $*; do
325 eval $var=$value
326 done
327 }
328
329 set_weak(){
330 value=$1
331 shift
332 for var; do
333 eval : \${$var:=$value}
334 done
335 }
336
337 pushvar(){
338 for var in $*; do
339 eval level=\${${var}_level:=0}
340 eval ${var}_${level}="\$$var"
341 eval ${var}_level=$(($level+1))
342 done
343 }
344
345 popvar(){
346 for var in $*; do
347 eval level=\${${var}_level:-0}
348 test $level = 0 && continue
349 eval level=$(($level-1))
350 eval $var="\${${var}_${level}}"
351 eval ${var}_level=$level
352 eval unset ${var}_${level}
353 done
354 }
355
356 enable(){
357 set_all yes $*
358 }
359
360 disable(){
361 set_all no $*
362 }
363
364 enable_weak(){
365 set_weak yes $*
366 }
367
368 disable_weak(){
369 set_weak no $*
370 }
371
372 enable_safe(){
373 for var; do
374 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
375 done
376 }
377
378 disable_safe(){
379 for var; do
380 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
381 done
382 }
383
384 do_enable_deep(){
385 for var; do
386 enabled $var && continue
387 eval sel="\$${var}_select"
388 eval sgs="\$${var}_suggest"
389 pushvar var sgs
390 enable_deep $sel
391 popvar sgs
392 enable_deep_weak $sgs
393 popvar var
394 done
395 }
396
397 enable_deep(){
398 do_enable_deep $*
399 enable $*
400 }
401
402 enable_deep_weak(){
403 do_enable_deep $*
404 enable_weak $*
405 }
406
407 enabled(){
408 test "${1#!}" = "$1" && op== || op=!=
409 eval test "x\$${1#!}" $op "xyes"
410 }
411
412 disabled(){
413 test "${1#!}" = "$1" && op== || op=!=
414 eval test "x\$${1#!}" $op "xno"
415 }
416
417 enabled_all(){
418 for opt; do
419 enabled $opt || return 1
420 done
421 }
422
423 disabled_all(){
424 for opt; do
425 disabled $opt || return 1
426 done
427 }
428
429 enabled_any(){
430 for opt; do
431 enabled $opt && return 0
432 done
433 }
434
435 disabled_any(){
436 for opt; do
437 disabled $opt && return 0
438 done
439 return 1
440 }
441
442 set_default(){
443 for opt; do
444 eval : \${$opt:=\$${opt}_default}
445 done
446 }
447
448 is_in(){
449 value=$1
450 shift
451 for var in $*; do
452 [ $var = $value ] && return 0
453 done
454 return 1
455 }
456
457 check_deps(){
458 for cfg; do
459 cfg="${cfg#!}"
460 enabled ${cfg}_checking && die "Circular dependency for $cfg."
461 disabled ${cfg}_checking && continue
462 enable ${cfg}_checking
463
464 eval dep_all="\$${cfg}_deps"
465 eval dep_any="\$${cfg}_deps_any"
466 eval dep_sel="\$${cfg}_select"
467 eval dep_sgs="\$${cfg}_suggest"
468 eval dep_ifa="\$${cfg}_if"
469 eval dep_ifn="\$${cfg}_if_any"
470
471 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
472 check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
473 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
474
475 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
476 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
477 enabled_all $dep_all || disable $cfg
478 enabled_any $dep_any || disable $cfg
479 disabled_any $dep_sel && disable $cfg
480
481 if enabled $cfg; then
482 eval dep_extralibs="\$${cfg}_extralibs"
483 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
484 enable_deep $dep_sel
485 enable_deep_weak $dep_sgs
486 fi
487
488 disable ${cfg}_checking
489 done
490 }
491
492 print_config(){
493 pfx=$1
494 header=$2
495 makefile=$3
496 shift 3
497 for cfg; do
498 ucname="$(toupper $cfg)"
499 if enabled $cfg; then
500 echo "#define ${pfx}${ucname} 1" >> $header
501 echo "${pfx}${ucname}=yes" >> $makefile
502 else
503 echo "#define ${pfx}${ucname} 0" >> $header
504 echo "!${pfx}${ucname}=yes" >> $makefile
505 fi
506 done
507 }
508
509 flags_saved(){
510 (: ${SAVE_CFLAGS?}) 2> /dev/null
511 }
512
513 save_flags(){
514 flags_saved && return
515 SAVE_CFLAGS="$CFLAGS"
516 SAVE_LDFLAGS="$LDFLAGS"
517 SAVE_extralibs="$extralibs"
518 }
519
520 restore_flags(){
521 flags_saved || return
522 CFLAGS="$SAVE_CFLAGS"
523 LDFLAGS="$SAVE_LDFLAGS"
524 extralibs="$SAVE_extralibs"
525 unset SAVE_CFLAGS
526 unset SAVE_LDFLAGS
527 unset SAVE_extralibs
528 }
529
530 temp_cflags(){
531 save_flags
532 CFLAGS="$CFLAGS $*"
533 }
534
535 temp_ldflags(){
536 save_flags
537 LDFLAGS="$LDFLAGS $*"
538 }
539
540 temp_extralibs(){
541 save_flags
542 extralibs="$extralibs $*"
543 }
544
545 append(){
546 var=$1
547 shift
548 flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
549 eval "$var=\"\$$var $*\""
550 }
551
552 add_cppflags(){
553 append CPPFLAGS $($filter_cppflags "$@")
554 }
555
556 add_cflags(){
557 append CFLAGS $($filter_cflags "$@")
558 }
559
560 add_asflags(){
561 append ASFLAGS $($filter_asflags "$@")
562 }
563
564 add_ldflags(){
565 append LDFLAGS "$@"
566 }
567
568 add_extralibs(){
569 append extralibs "$@"
570 }
571
572 check_cmd(){
573 log "$@"
574 "$@" >> $logfile 2>&1
575 }
576
577 check_cc(){
578 log check_cc "$@"
579 cat > $TMPC
580 log_file $TMPC
581 check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
582 }
583
584 check_cpp(){
585 log check_cpp "$@"
586 cat > $TMPC
587 log_file $TMPC
588 check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
589 }
590
591 check_as(){
592 log check_as "$@"
593 cat > $TMPC
594 log_file $TMPC
595 check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
596 }
597
598 check_asm(){
599 log check_asm "$@"
600 name="$1"
601 code="$2"
602 shift 2
603 disable $name
604 check_as "$@" <<EOF && enable $name
605 void foo(void){ __asm__ volatile($code); }
606 EOF
607 }
608
609 check_yasm(){
610 log check_yasm "$@"
611 echo "$1" > $TMPS
612 log_file $TMPS
613 shift 1
614 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
615 }
616
617 check_ld(){
618 log check_ld "$@"
619 flags=''
620 libs=''
621 for f; do
622 test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
623 done
624 check_cc $($filter_cflags $flags) || return
625 check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
626 }
627
628 check_cppflags(){
629 log check_cppflags "$@"
630 set -- $($filter_cppflags "$@")
631 check_cc "$@" <<EOF && append CPPFLAGS "$@"
632 int x;
633 EOF
634 }
635
636 check_cflags(){
637 log check_cflags "$@"
638 set -- $($filter_cflags "$@")
639 check_cc "$@" <<EOF && append CFLAGS "$@"
640 int x;
641 EOF
642 }
643
644 test_ldflags(){
645 log test_ldflags "$@"
646 check_ld "$@" <<EOF
647 int main(void){ return 0; }
648 EOF
649 }
650
651 check_ldflags(){
652 log check_ldflags "$@"
653 test_ldflags "$@" && add_ldflags "$@"
654 }
655
656 check_header(){
657 log check_header "$@"
658 header=$1
659 shift
660 disable_safe $header
661 check_cpp "$@" <<EOF && enable_safe $header
662 #include <$header>
663 int x;
664 EOF
665 }
666
667 check_func(){
668 log check_func "$@"
669 func=$1
670 shift
671 disable $func
672 check_ld "$@" <<EOF && enable $func
673 extern int $func();
674 int main(void){ $func(); }
675 EOF
676 }
677
678 check_mathfunc(){
679 log check_mathfunc "$@"
680 func=$1
681 shift
682 disable $func
683 check_ld "$@" <<EOF && enable $func
684 #include <math.h>
685 float foo(float f) { return $func(f); }
686 int main(void){ return 0; }
687 EOF
688 }
689
690 check_func_headers(){
691 log check_func_headers "$@"
692 headers=$1
693 func=$2
694 shift 2
695 disable $func
696 incs=""
697 for hdr in $headers; do
698 incs="$incs
699 #include <$hdr>"
700 done
701 check_ld "$@" <<EOF && enable $func && enable_safe $headers
702 $incs
703 int main(int argc, char **argv){
704 return (long) $func;
705 }
706 EOF
707 }
708
709 check_cpp_condition(){
710 log check_cpp_condition "$@"
711 header=$1
712 condition=$2
713 shift 2
714 check_cpp $($filter_cppflags "$@") <<EOF
715 #include <$header>
716 #if !($condition)
717 #error "unsatisfied condition: $condition"
718 #endif
719 EOF
720 }
721
722 check_lib(){
723 log check_lib "$@"
724 header="$1"
725 func="$2"
726 shift 2
727 temp_extralibs "$@"
728 check_header $header && check_func $func && add_extralibs "$@"
729 err=$?
730 restore_flags
731 return $err
732 }
733
734 check_lib2(){
735 log check_lib2 "$@"
736 headers="$1"
737 func="$2"
738 shift 2
739 check_func_headers "$headers" $func "$@" && add_extralibs "$@"
740 }
741
742 check_exec(){
743 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
744 }
745
746 check_exec_crash(){
747 code=$(cat)
748
749 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
750 # are safe but may not be available everywhere. Thus we use
751 # raise(SIGTERM) instead. The check is run in a subshell so we
752 # can redirect the "Terminated" message from the shell. SIGBUS
753 # is not defined by standard C so it is used conditionally.
754
755 (check_exec "$@") >> $logfile 2>&1 <<EOF
756 #include <signal.h>
757 static void sighandler(int sig){
758 raise(SIGTERM);
759 }
760 int main(void){
761 signal(SIGILL, sighandler);
762 signal(SIGFPE, sighandler);
763 signal(SIGSEGV, sighandler);
764 #ifdef SIGBUS
765 signal(SIGBUS, sighandler);
766 #endif
767 { $code }
768 }
769 EOF
770 }
771
772 check_type(){
773 log check_type "$@"
774 headers=$1
775 type=$2
776 shift 2
777 disable_safe "$type"
778 incs=""
779 for hdr in $headers; do
780 incs="$incs
781 #include <$hdr>"
782 done
783 check_cc "$@" <<EOF && enable_safe "$type"
784 $incs
785 $type v;
786 EOF
787 }
788
789 check_struct(){
790 log check_type "$@"
791 headers=$1
792 struct=$2
793 member=$3
794 shift 3
795 disable_safe "${struct}_${member}"
796 incs=""
797 for hdr in $headers; do
798 incs="$incs
799 #include <$hdr>"
800 done
801 check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
802 $incs
803 const void *p = &(($struct *)0)->$member;
804 EOF
805 }
806
807 require(){
808 name="$1"
809 header="$2"
810 func="$3"
811 shift 3
812 check_lib $header $func "$@" || die "ERROR: $name not found"
813 }
814
815 require2(){
816 name="$1"
817 headers="$2"
818 func="$3"
819 shift 3
820 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
821 }
822
823 check_foo_config(){
824 cfg=$1
825 pkg=$2
826 header=$3
827 func=$4
828 shift 4
829 disable $cfg
830 check_cmd ${pkg}-config --version
831 err=$?
832 if test "$err" = 0; then
833 temp_cflags $(${pkg}-config --cflags)
834 temp_extralibs $(${pkg}-config --libs)
835 check_lib "$@" $header $func && enable $cfg
836 fi
837 return $err
838 }
839
840 check_host_cc(){
841 log check_host_cc "$@"
842 cat > $TMPC
843 log_file $TMPC
844 check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
845 }
846
847 check_host_cflags(){
848 log check_host_cflags "$@"
849 check_host_cc "$@" <<EOF && append host_cflags "$@"
850 int x;
851 EOF
852 }
853
854 apply(){
855 file=$1
856 shift
857 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
858 }
859
860 cp_if_changed(){
861 cmp -s "$1" "$2" &&
862 echo "$2 is unchanged" ||
863 cp -f "$1" "$2"
864 }
865
866 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
867 # system-dependent things.
868
869 COMPONENT_LIST="
870 bsfs
871 decoders
872 demuxers
873 encoders
874 filters
875 hwaccels
876 indevs
877 muxers
878 outdevs
879 parsers
880 protocols
881 "
882
883 CONFIG_LIST="
884 $COMPONENT_LIST
885 aandct
886 avcodec
887 avdevice
888 avfilter
889 avfilter_lavf
890 avformat
891 avisynth
892 beos_netserver
893 bzlib
894 dct
895 doc
896 dxva2
897 fastdiv
898 ffmpeg
899 ffplay
900 ffprobe
901 ffserver
902 fft
903 golomb
904 gpl
905 gprof
906 gray
907 hardcoded_tables
908 libdc1394
909 libdirac
910 libfaac
911 libfaad
912 libfaadbin
913 libgsm
914 libmp3lame
915 libnut
916 libopencore_amrnb
917 libopencore_amrwb
918 libopenjpeg
919 libschroedinger
920 libspeex
921 libtheora
922 libvorbis
923 libx264
924 libxvid
925 lpc
926 lsp
927 mdct
928 memalign_hack
929 mlib
930 mpegaudio_hp
931 network
932 nonfree
933 pic
934 postproc
935 powerpc_perf
936 rdft
937 runtime_cpudetect
938 shared
939 small
940 sram
941 static
942 swscale
943 swscale_alpha
944 vaapi
945 vdpau
946 version3
947 x11grab
948 zlib
949 "
950
951 THREADS_LIST='
952 beosthreads
953 os2threads
954 pthreads
955 w32threads
956 '
957
958 ARCH_LIST='
959 alpha
960 arm
961 avr32
962 avr32_ap
963 avr32_uc
964 bfin
965 ia64
966 m68k
967 mips
968 mips64
969 parisc
970 ppc
971 ppc64
972 s390
973 sh4
974 sparc
975 sparc64
976 tomi
977 x86
978 x86_32
979 x86_64
980 '
981
982 ARCH_EXT_LIST='
983 altivec
984 amd3dnow
985 amd3dnowext
986 armv5te
987 armv6
988 armv6t2
989 armvfp
990 iwmmxt
991 mmi
992 mmx
993 mmx2
994 neon
995 ppc4xx
996 sse
997 ssse3
998 vis
999 '
1000
1001 HAVE_LIST_PUB='
1002 bigendian
1003 '
1004
1005 HAVE_LIST="
1006 $ARCH_EXT_LIST
1007 $HAVE_LIST_PUB
1008 $THREADS_LIST
1009 alsa_asoundlib_h
1010 altivec_h
1011 arpa_inet_h
1012 attribute_may_alias
1013 attribute_packed
1014 bswap
1015 closesocket
1016 cmov
1017 conio_h
1018 dcbzl
1019 dev_bktr_ioctl_bt848_h
1020 dev_bktr_ioctl_meteor_h
1021 dev_ic_bt8xx_h
1022 dev_video_meteor_ioctl_meteor_h
1023 dev_video_bktr_ioctl_bt848_h
1024 dlfcn_h
1025 dlopen
1026 dos_paths
1027 ebp_available
1028 ebx_available
1029 exp2
1030 exp2f
1031 fast_64bit
1032 fast_clz
1033 fast_cmov
1034 fast_unaligned
1035 fork
1036 getaddrinfo
1037 gethrtime
1038 GetProcessMemoryInfo
1039 GetProcessTimes
1040 getrusage
1041 struct_rusage_ru_maxrss
1042 inet_aton
1043 inline_asm
1044 isatty
1045 ldbrx
1046 libdc1394_1
1047 libdc1394_2
1048 llrint
1049 local_aligned_16
1050 local_aligned_8
1051 log2
1052 log2f
1053 loongson
1054 lrint
1055 lrintf
1056 lzo1x_999_compress
1057 machine_ioctl_bt848_h
1058 machine_ioctl_meteor_h
1059 malloc_h
1060 memalign
1061 mkstemp
1062 pld
1063 posix_memalign
1064 round
1065 roundf
1066 sdl
1067 sdl_video_size
1068 setmode
1069 socklen_t
1070 soundcard_h
1071 poll_h
1072 setrlimit
1073 struct_addrinfo
1074 struct_ipv6_mreq
1075 struct_sockaddr_in6
1076 struct_sockaddr_sa_len
1077 struct_sockaddr_storage
1078 sys_mman_h
1079 sys_resource_h
1080 sys_select_h
1081 sys_soundcard_h
1082 sys_videoio_h
1083 ten_operands
1084 termios_h
1085 threads
1086 truncf
1087 vfp_args
1088 VirtualAlloc
1089 winsock2_h
1090 xform_asm
1091 yasm
1092 "
1093
1094 # options emitted with CONFIG_ prefix but not available on command line
1095 CONFIG_EXTRA="
1096 avutil
1097 gplv3
1098 lgplv3
1099 "
1100
1101 CMDLINE_SELECT="
1102 $ARCH_EXT_LIST
1103 $CONFIG_LIST
1104 $THREADS_LIST
1105 asm
1106 cross_compile
1107 debug
1108 extra_warnings
1109 logging
1110 optimizations
1111 stripping
1112 yasm
1113 "
1114
1115 PATHS_LIST='
1116 bindir
1117 datadir
1118 incdir
1119 libdir
1120 mandir
1121 prefix
1122 shlibdir
1123 '
1124
1125 CMDLINE_SET="
1126 $PATHS_LIST
1127 arch
1128 as
1129 build_suffix
1130 cc
1131 cpu
1132 cross_prefix
1133 dep_cc
1134 extra_version
1135 host_cc
1136 host_cflags
1137 host_ldflags
1138 host_libs
1139 host_os
1140 ld
1141 logfile
1142 malloc_prefix
1143 nm
1144 source_path
1145 strip
1146 sysinclude
1147 sysroot
1148 target_exec
1149 target_os
1150 target_path
1151 "
1152
1153 CMDLINE_APPEND="
1154 extra_cflags
1155 "
1156
1157 # code dependency declarations
1158
1159 # architecture extensions
1160
1161 armv5te_deps="arm"
1162 armv6_deps="arm"
1163 armv6t2_deps="arm"
1164 armvfp_deps="arm"
1165 iwmmxt_deps="arm"
1166 neon_deps="arm"
1167
1168 mmi_deps="mips"
1169
1170 altivec_deps="ppc"
1171 ppc4xx_deps="ppc"
1172
1173 vis_deps="sparc"
1174
1175 x86_64_suggest="cmov fast_cmov"
1176 amd3dnow_deps="mmx"
1177 amd3dnowext_deps="amd3dnow"
1178 mmx_deps="x86"
1179 mmx2_deps="mmx"
1180 sse_deps="mmx"
1181 ssse3_deps="sse"
1182
1183 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1184 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1185 fast_unaligned_if_any="armv6 ppc x86"
1186
1187 need_memalign="altivec neon sse"
1188 inline_asm_deps="!tms470"
1189
1190 # subsystems
1191 mdct_select="fft"
1192 rdft_select="fft"
1193
1194 # decoders / encoders / hardware accelerators
1195 aac_decoder_select="mdct rdft aac_parser"
1196 aac_encoder_select="mdct"
1197 ac3_decoder_select="mdct ac3_parser"
1198 alac_encoder_select="lpc"
1199 amrnb_decoder_select="lsp"
1200 atrac1_decoder_select="mdct"
1201 atrac3_decoder_select="mdct"
1202 binkaudio_dct_decoder_select="mdct rdft dct"
1203 binkaudio_rdft_decoder_select="mdct rdft"
1204 cavs_decoder_select="golomb"
1205 cook_decoder_select="mdct"
1206 cscd_decoder_suggest="zlib"
1207 dca_decoder_select="mdct"
1208 dnxhd_encoder_select="aandct"
1209 dxa_decoder_select="zlib"
1210 eac3_decoder_select="ac3_decoder"
1211 eamad_decoder_select="aandct"
1212 eatgq_decoder_select="aandct"
1213 eatqi_decoder_select="aandct"
1214 ffv1_decoder_select="golomb"
1215 flac_decoder_select="golomb"
1216 flac_encoder_select="golomb lpc"
1217 flashsv_decoder_select="zlib"
1218 flashsv_encoder_select="zlib"
1219 flv_decoder_select="h263_decoder"
1220 flv_encoder_select="h263_encoder"
1221 h261_encoder_select="aandct"
1222 h263_decoder_select="h263_parser"
1223 h263_encoder_select="aandct"
1224 h263_vaapi_hwaccel_deps="va_va_h"
1225 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1226 h263i_decoder_select="h263_decoder"
1227 h263p_encoder_select="h263_encoder"
1228 h264_decoder_select="golomb"
1229 h264_dxva2_hwaccel_deps="dxva2api_h"
1230 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1231 h264_vaapi_hwaccel_deps="va_va_h"
1232 h264_vaapi_hwaccel_select="vaapi"
1233 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1234 h264_vdpau_decoder_select="vdpau h264_decoder"
1235 imc_decoder_select="fft mdct"
1236 jpegls_decoder_select="golomb"
1237 jpegls_encoder_select="golomb"
1238 ljpeg_encoder_select="aandct"
1239 loco_decoder_select="golomb"
1240 mjpeg_encoder_select="aandct"
1241 mlp_decoder_select="mlp_parser"
1242 mpeg1video_encoder_select="aandct"
1243 mpeg2video_encoder_select="aandct"
1244 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1245 mpeg4_encoder_select="h263_encoder"
1246 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1247 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1248 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1249 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1250 mpeg2_vaapi_hwaccel_deps="va_va_h"
1251 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1252 mpeg4_vaapi_hwaccel_deps="va_va_h"
1253 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1254 mpeg4_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1255 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1256 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1257 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1258 msmpeg4v1_decoder_select="h263_decoder"
1259 msmpeg4v1_encoder_select="h263_encoder"
1260 msmpeg4v2_decoder_select="h263_decoder"
1261 msmpeg4v2_encoder_select="h263_encoder"
1262 msmpeg4v3_decoder_select="h263_decoder"
1263 msmpeg4v3_encoder_select="h263_encoder"
1264 nellymoser_decoder_select="mdct"
1265 nellymoser_encoder_select="mdct"
1266 png_decoder_select="zlib"
1267 png_encoder_select="zlib"
1268 qcelp_decoder_select="lsp"
1269 qdm2_decoder_select="mdct rdft"
1270 rv10_decoder_select="h263_decoder"
1271 rv10_encoder_select="h263_encoder"
1272 rv20_decoder_select="h263_decoder"
1273 rv20_encoder_select="h263_encoder"
1274 rv30_decoder_select="golomb"
1275 rv40_decoder_select="golomb"
1276 shorten_decoder_select="golomb"
1277 sipr_decoder_select="lsp"
1278 snow_encoder_select="aandct"
1279 sonic_decoder_select="golomb"
1280 sonic_encoder_select="golomb"
1281 sonic_ls_encoder_select="golomb"
1282 svq1_encoder_select="aandct"
1283 svq3_decoder_select="golomb"
1284 svq3_decoder_suggest="zlib"
1285 theora_decoder_select="vp3_decoder"
1286 tiff_decoder_suggest="zlib"
1287 tiff_encoder_suggest="zlib"
1288 truehd_decoder_select="mlp_decoder"
1289 tscc_decoder_select="zlib"
1290 twinvq_decoder_select="mdct lsp"
1291 vc1_decoder_select="h263_decoder"
1292 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1293 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1294 vc1_vaapi_hwaccel_deps="va_va_h"
1295 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1296 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1297 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1298 vorbis_decoder_select="mdct"
1299 vorbis_encoder_select="mdct"
1300 vp6a_decoder_select="vp6_decoder"
1301 vp6f_decoder_select="vp6_decoder"
1302 wmapro_decoder_select="mdct"
1303 wmav1_decoder_select="mdct"
1304 wmav1_encoder_select="mdct"
1305 wmav2_decoder_select="mdct"
1306 wmav2_encoder_select="mdct"
1307 wmavoice_decoder_select="lsp"
1308 wmv1_decoder_select="h263_decoder"
1309 wmv1_encoder_select="h263_encoder"
1310 wmv2_decoder_select="h263_decoder"
1311 wmv2_encoder_select="h263_encoder"
1312 wmv3_decoder_select="vc1_decoder"
1313 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1314 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1315 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1316 zlib_decoder_select="zlib"
1317 zlib_encoder_select="zlib"
1318 zmbv_decoder_select="zlib"
1319 zmbv_encoder_select="zlib"
1320
1321 # parsers
1322 h264_parser_select="golomb"
1323
1324 # bitstream_filters
1325 aac_adtstoasc_bsf_select="aac_parser"
1326
1327 # external libraries
1328 libdirac_decoder_deps="libdirac !libschroedinger"
1329 libdirac_encoder_deps="libdirac"
1330 libfaac_encoder_deps="libfaac"
1331 libfaad_decoder_deps="libfaad"
1332 libfaadbin_decoder_extralibs='$ldl'
1333 libgsm_decoder_deps="libgsm"
1334 libgsm_encoder_deps="libgsm"
1335 libgsm_ms_decoder_deps="libgsm"
1336 libgsm_ms_encoder_deps="libgsm"
1337 libmp3lame_encoder_deps="libmp3lame"
1338 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1339 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1340 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1341 libopenjpeg_decoder_deps="libopenjpeg"
1342 libschroedinger_decoder_deps="libschroedinger"
1343 libschroedinger_encoder_deps="libschroedinger"
1344 libspeex_decoder_deps="libspeex"
1345 libtheora_encoder_deps="libtheora"
1346 libvorbis_encoder_deps="libvorbis"
1347 libx264_encoder_deps="libx264"
1348 libxvid_encoder_deps="libxvid"
1349
1350 # demuxers / muxers
1351 ac3_demuxer_deps="ac3_parser"
1352 asf_stream_muxer_select="asf_muxer"
1353 avisynth_demuxer_deps="avisynth"
1354 dirac_demuxer_deps="dirac_parser"
1355 eac3_demuxer_select="ac3_parser"
1356 ipod_muxer_select="mov_muxer"
1357 libnut_demuxer_deps="libnut"
1358 libnut_muxer_deps="libnut"
1359 matroska_audio_muxer_select="matroska_muxer"
1360 matroska_demuxer_suggest="zlib bzlib"
1361 mov_demuxer_suggest="zlib"
1362 mp3_demuxer_deps="mpegaudio_parser"
1363 mp4_muxer_select="mov_muxer"
1364 mpegtsraw_demuxer_select="mpegts_demuxer"
1365 mxf_d10_muxer_select="mxf_muxer"
1366 ogg_demuxer_select="golomb"
1367 psp_muxer_select="mov_muxer"
1368 rtsp_demuxer_deps="sdp_demuxer"
1369 rtsp_muxer_deps="sdp_demuxer"
1370 rtsp_muxer_select="rtp_muxer"
1371 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1372 spdif_muxer_select="aac_parser"
1373 tg2_muxer_select="mov_muxer"
1374 tgp_muxer_select="mov_muxer"
1375 w64_demuxer_deps="wav_demuxer"
1376
1377 # indevs / outdevs
1378 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1379 alsa_indev_extralibs="-lasound"
1380 alsa_outdev_deps="alsa_asoundlib_h"
1381 alsa_outdev_extralibs="-lasound"
1382 audio_beos_indev_deps="audio_beos"
1383 audio_beos_indev_extralibs="-lmedia -lbe"
1384 audio_beos_outdev_deps="audio_beos"
1385 audio_beos_outdev_extralibs="-lmedia -lbe"
1386 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1387 dv1394_indev_deps="dv1394 dv_demuxer"
1388 jack_indev_deps="jack_jack_h"
1389 jack_indev_extralibs="-ljack"
1390 libdc1394_indev_deps="libdc1394"
1391 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1392 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1393 v4l_indev_deps="linux_videodev_h"
1394 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1395 vfwcap_indev_deps="capCreateCaptureWindow"
1396 vfwcap_indev_extralibs="-lavicap32"
1397 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1398 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1399
1400 # protocols
1401 gopher_protocol_deps="network"
1402 http_protocol_deps="network"
1403 http_protocol_select="tcp_protocol"
1404 rtmp_protocol_deps="tcp_protocol"
1405 rtp_protocol_deps="udp_protocol"
1406 tcp_protocol_deps="network"
1407 udp_protocol_deps="network"
1408
1409 # filters
1410 movie_filter_deps="avfilter_lavf"
1411 avfilter_lavf_deps="avformat"
1412
1413 # libraries
1414 avdevice_deps="avcodec avformat"
1415 avformat_deps="avcodec"
1416
1417 # programs
1418 ffmpeg_deps="avcodec avformat swscale"
1419 ffplay_deps="avcodec avformat swscale sdl"
1420 ffplay_select="rdft"
1421 ffprobe_deps="avcodec avformat"
1422 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1423 ffserver_extralibs='$ldl'
1424
1425 doc_deps="texi2html"
1426
1427 # default parameters
1428
1429 logfile="config.err"
1430
1431 # installation paths
1432 prefix_default="/usr/local"
1433 bindir_default='${prefix}/bin'
1434 datadir_default='${prefix}/share/ffmpeg'
1435 incdir_default='${prefix}/include'
1436 libdir_default='${prefix}/lib'
1437 mandir_default='${prefix}/share/man'
1438 shlibdir_default="$libdir_default"
1439
1440 # toolchain
1441 ar="ar"
1442 cc_default="gcc"
1443 cc_version=\"unknown\"
1444 host_cc_default="gcc"
1445 ln_s="ln -sf"
1446 nm_default="nm"
1447 objformat="elf"
1448 ranlib="ranlib"
1449 strip_default="strip"
1450 yasmexe="yasm"
1451
1452 nm_opts='-g'
1453
1454 # machine
1455 arch_default=$(uname -m)
1456 cpu="generic"
1457
1458 # OS
1459 target_os_default=$(tolower $(uname -s))
1460 host_os=$target_os_default
1461
1462 # configurable options
1463 enable avcodec
1464 enable avdevice
1465 enable avformat
1466 enable avutil
1467 enable asm
1468 enable debug
1469 enable doc
1470 enable fastdiv
1471 enable ffmpeg
1472 enable ffplay
1473 enable ffprobe
1474 enable ffserver
1475 enable mpegaudio_hp
1476 enable network
1477 enable optimizations
1478 enable protocols
1479 enable static
1480 enable stripping
1481 enable swscale
1482 enable swscale_alpha
1483
1484 # build settings
1485 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1486 FFSERVERLDFLAGS=-Wl,-E
1487 LIBPREF="lib"
1488 LIBSUF=".a"
1489 FULLNAME='$(NAME)$(BUILDSUF)'
1490 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1491 SLIBPREF="lib"
1492 SLIBSUF=".so"
1493 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1494 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1495 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1496 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1497
1498 CC_O='-o $@'
1499
1500 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1501 host_libs='-lm'
1502
1503 target_path='$(CURDIR)'
1504
1505 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1506 # full relative path for objects in subdirectories for non-recursive Make.
1507 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1508 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1509
1510 # find source path
1511 source_path="$(dirname "$0")"
1512 enable source_path_used
1513 if test -f configure; then
1514 source_path="$(pwd)"
1515 disable source_path_used
1516 else
1517 source_path="$(cd "$source_path"; pwd)"
1518 echo "$source_path" | grep -q '[[:blank:]]' &&
1519 die "Out of tree builds are impossible with whitespace in source path."
1520 test -e "$source_path/config.h" &&
1521 die "Out of tree builds are impossible with config.h in source dir."
1522 fi
1523
1524 for v in "$@"; do
1525 r=${v#*=}
1526 l=${v%"$r"}
1527 r=$(sh_quote "$r")
1528 FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1529 done
1530
1531 find_things(){
1532 thing=$1
1533 pattern=$2
1534 file=$source_path/$3
1535 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1536 }
1537
1538 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
1539 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
1540 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
1541 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
1542 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
1543 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
1544 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
1545 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
1546 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
1547 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1548 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
1549
1550 enable $ARCH_EXT_LIST \
1551 $DECODER_LIST \
1552 $ENCODER_LIST \
1553 $HWACCEL_LIST \
1554 $PARSER_LIST \
1555 $BSF_LIST \
1556 $DEMUXER_LIST \
1557 $MUXER_LIST \
1558 $FILTER_LIST \
1559 $PROTOCOL_LIST \
1560 $INDEV_LIST \
1561 $OUTDEV_LIST \
1562
1563 die_unknown(){
1564 echo "Unknown option \"$1\"."
1565 echo "See $0 --help for available options."
1566 exit 1
1567 }
1568
1569 show_list() {
1570 suffix=_$1
1571 shift
1572 echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1573 exit 0
1574 }
1575
1576 for opt do
1577 optval="${opt#*=}"
1578 case "$opt" in
1579 --extra-ldflags=*) add_ldflags $optval
1580 ;;
1581 --extra-libs=*) add_extralibs $optval
1582 ;;
1583 --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1584 ;;
1585 --enable-debug=*) debuglevel="$optval"
1586 ;;
1587 --disable-everything)
1588 map 'eval disable \${$(toupper ${_%s})_LIST}' $COMPONENT_LIST
1589 ;;
1590 --enable-*=*|--disable-*=*)
1591 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1592 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1593 eval list=\$$(toupper $thing)_LIST
1594 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1595 $action $(filter "$name" $list)
1596 ;;
1597 --enable-?*|--disable-?*)
1598 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1599 if is_in $option $COMPONENT_LIST; then
1600 test $action = disable && action=unset
1601 eval $action \$$(toupper ${option%s})_LIST
1602 elif is_in $option $CMDLINE_SELECT; then
1603 $action $option
1604 else
1605 die_unknown $opt
1606 fi
1607 ;;
1608 --list-*)
1609 NAME="${opt#--list-}"
1610 is_in $NAME $COMPONENT_LIST || die_unknown $opt
1611 NAME=${NAME%s}
1612 eval show_list $NAME \$$(toupper $NAME)_LIST
1613 ;;
1614 --help|-h) show_help
1615 ;;
1616 *)
1617 optname="${opt%%=*}"
1618 optname="${optname#--}"
1619 optname=$(echo "$optname" | sed 's/-/_/g')
1620 if is_in $optname $CMDLINE_SET; then
1621 eval $optname='$optval'
1622 elif is_in $optname $CMDLINE_APPEND; then
1623 append $optname "$optval"
1624 else
1625 die_unknown $opt
1626 fi
1627 ;;
1628 esac
1629 done
1630
1631 disabled logging && logfile=/dev/null
1632
1633 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1634 set >> $logfile
1635
1636 test -n "$cross_prefix" && enable cross_compile
1637
1638 if enabled cross_compile; then
1639 test -n "$arch" && test -n "$target_os" ||
1640 die "Must specify target arch and OS when cross-compiling"
1641 fi
1642
1643 set_default arch target_os
1644
1645 ar="${cross_prefix}${ar}"
1646 cc_default="${cross_prefix}${cc_default}"
1647 nm_default="${cross_prefix}${nm_default}"
1648 ranlib="${cross_prefix}${ranlib}"
1649 strip_default="${cross_prefix}${strip_default}"
1650
1651 sysinclude_default="${sysroot}/usr/include"
1652
1653 set_default cc nm strip sysinclude
1654 enabled cross_compile || host_cc_default=$cc
1655 set_default host_cc
1656
1657 exesuf() {
1658 case $1 in
1659 mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1660 esac
1661 }
1662
1663 EXESUF=$(exesuf $target_os)
1664 HOSTEXESUF=$(exesuf $host_os)
1665
1666 # set temporary file name
1667 : ${TMPDIR:=$TEMPDIR}
1668 : ${TMPDIR:=$TMP}
1669 : ${TMPDIR:=/tmp}
1670
1671 if ! check_cmd type mktemp; then
1672 # simple replacement for missing mktemp
1673 # NOT SAFE FOR GENERAL USE
1674 mktemp(){
1675 echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1676 }
1677 fi
1678
1679 tmpfile(){
1680 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1681 (set -C; exec > $tmp) 2>/dev/null ||
1682 die "Unable to create temporary file in $TMPDIR."
1683 append TMPFILES $tmp
1684 eval $1=$tmp
1685 }
1686
1687 trap 'rm -f -- $TMPFILES' EXIT
1688 trap exit HUP INT TERM
1689
1690 tmpfile TMPC .c
1691 tmpfile TMPE $EXESUF
1692 tmpfile TMPH .h
1693 tmpfile TMPO .o
1694 tmpfile TMPS .S
1695 tmpfile TMPV .ver
1696 tmpfile TMPSH .sh
1697
1698 unset -f mktemp
1699
1700 # make sure we can execute files in $TMPDIR
1701 cat > $TMPSH 2>> $logfile <<EOF
1702 #! /bin/sh
1703 EOF
1704 chmod +x $TMPSH >> $logfile 2>&1
1705 if ! $TMPSH >> $logfile 2>&1; then
1706 cat <<EOF
1707 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
1708 variable to another directory and make sure that it is not mounted noexec.
1709 EOF
1710 die "Sanity test failed."
1711 fi
1712
1713 filter_cflags=echo
1714 filter_cppflags=echo
1715 filter_asflags=echo
1716
1717 if $cc -v 2>&1 | grep -qi ^gcc; then
1718 cc_type=gcc
1719 cc_version=__VERSION__
1720 if ! $cc -dumpversion | grep -q '^2\.'; then
1721 CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1722 AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1723 fi
1724 speed_cflags='-O3'
1725 size_cflags='-Os'
1726 elif $cc --version 2>/dev/null | grep -q Intel; then
1727 cc_type=icc
1728 cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1729 CC_DEPFLAGS='-MMD'
1730 AS_DEPFLAGS='-MMD'
1731 speed_cflags='-O3'
1732 size_cflags='-Os'
1733 elif $cc -v 2>&1 | grep -q xlc; then
1734 cc_type=xlc
1735 cc_version="AV_STRINGIFY(__IBMC__)"
1736 speed_cflags='-O5'
1737 size_cflags='-O5 -qcompact'
1738 elif $cc -V 2>/dev/null | grep -q Compaq; then
1739 cc_type=ccc
1740 cc_version="AV_STRINGIFY(__DECC_VER)"
1741 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1742 debuglevel=3
1743 add_ldflags -Wl,-z,now # calls to libots crash without this
1744 speed_cflags='-fast'
1745 size_cflags='-O1'
1746 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1747 test -d "$sysroot" || die "No valid sysroot specified."
1748 cc_type=armcc
1749 cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1750 armcc_conf="$PWD/armcc.conf"
1751 $cc --arm_linux_configure \
1752 --arm_linux_config_file="$armcc_conf" \
1753 --configure_sysroot="$sysroot" \
1754 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1755 die "Error creating armcc configuration file."
1756 cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1757 as_default="${cross_prefix}gcc"
1758 CC_DEPFLAGS='-MMD'
1759 AS_DEPFLAGS='-MMD'
1760 speed_cflags='-O3'
1761 size_cflags='-Os'
1762 elif $cc -version 2>/dev/null | grep -q TMS470; then
1763 cc_type=tms470
1764 cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1765 cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1766 CC_O='-fr=$(@D)'
1767 as_default="${cross_prefix}gcc"
1768 ld_default="${cross_prefix}gcc"
1769 TMPO=$(basename $TMPC .c).o
1770 append TMPFILES $TMPO
1771 add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1772 CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1773 AS_DEPFLAGS='-MMD'
1774 speed_cflags='-O3 -mf=5'
1775 size_cflags='-O3 -mf=2'
1776 filter_cflags=tms470_flags
1777 tms470_flags(){
1778 for flag; do
1779 case $flag in
1780 -march=*|-mcpu=*)
1781 case "${flag#*=}" in
1782 armv7-a|cortex-a*) echo -mv=7a8 ;;
1783 armv7-r|cortex-r*) echo -mv=7r4 ;;
1784 armv7-m|cortex-m*) echo -mv=7m3 ;;
1785 armv6*|arm11*) echo -mv=6 ;;
1786 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1787 echo -mv=5e ;;
1788 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
1789 esac
1790 ;;
1791 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
1792 -mfpu=vfp) echo --float_support=vfpv2 ;;
1793 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
1794 -msoft-float) echo --float_support=vfplib ;;
1795 -O[0-3]|-mf=*) echo $flag ;;
1796 -g) echo -g -mn ;;
1797 -pds=*) echo $flag ;;
1798 esac
1799 done
1800 }
1801 elif $cc -v 2>&1 | grep -q clang; then
1802 cc_type=clang
1803 cc_version=__VERSION__
1804 CC_DEPFLAGS='-MMD'
1805 AS_DEPFLAGS='-MMD'
1806 speed_cflags='-O3'
1807 size_cflags='-Os'
1808 elif $cc -V 2>&1 | grep -q Sun; then
1809 cc_type=suncc
1810 cc_version="AV_STRINGIFY(__SUNPRO_C)"
1811 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1812 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1813 speed_cflags='-O5'
1814 size_cflags='-O5 -xspace'
1815 filter_cflags=suncc_flags
1816 suncc_flags(){
1817 for flag; do
1818 case $flag in
1819 -march=*|-mcpu=*)
1820 case "${flag#*=}" in
1821 native) echo -xtarget=native ;;
1822 v9) echo -xarch=sparc ;;
1823 ultrasparc) echo -xarch=sparcvis ;;
1824 ultrasparc3|niagara*) echo -xarch=sparcvis2 ;;
1825 i586|pentium) echo -xchip=pentium ;;
1826 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
1827 pentium3*|c3-2) echo -xtarget=pentium3 ;;
1828 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
1829 pentium4*) echo -xtarget=pentium4 ;;
1830 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
1831 *-sse3) echo -xarch=sse3 ;;
1832 core2) echo -xarch=ssse3 -xchip=core2 ;;
1833 amdfam10|barcelona) echo -xarch=sse4_1 ;;
1834 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
1835 k8|opteron|athlon64|athlon-fx)
1836 echo -xarch=sse2a ;;
1837 athlon*) echo -xarch=pentium_proa ;;
1838 esac
1839 ;;
1840 -std=c99) echo -xc99 ;;
1841 -fomit-frame-pointer) echo -xregs=frameptr ;;
1842 -fPIC) echo -KPIC -xcode=pic32 ;;
1843 -W*,*) echo $flag ;;
1844 -f*-*|-W*) ;;
1845 *) echo $flag ;;
1846 esac
1847 done
1848 }
1849 fi
1850
1851 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1852
1853 : ${as_default:=$cc}
1854 : ${dep_cc_default:=$cc}
1855 : ${ld_default:=$cc}
1856 set_default as dep_cc ld
1857
1858 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1859 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1860
1861 add_cflags $extra_cflags
1862 add_asflags $extra_cflags
1863
1864 if test -n "$sysroot"; then
1865 case "$cc_type" in
1866 gcc)
1867 add_cppflags --sysroot="$sysroot"
1868 add_ldflags --sysroot="$sysroot"
1869 ;;
1870 tms470)
1871 add_cppflags -I"$sysinclude"
1872 add_ldflags --sysroot="$sysroot"
1873 ;;
1874 clang)
1875 add_cppflags -isysroot "$sysroot"
1876 add_ldflags -isysroot "$sysroot"
1877 ;;
1878 esac
1879 fi
1880
1881 if test "$cpu" = host; then
1882 enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1883
1884 case "$cc_type" in
1885 gcc)
1886 check_native(){
1887 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1888 sed -n "/$1=/{
1889 s/.*$1=\\([^ ]*\\).*/\\1/
1890 p
1891 q
1892 }" $TMPE
1893 }
1894 cpu=$(check_native -march || check_native -mcpu)
1895 ;;
1896 esac
1897
1898 test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1899 fi
1900
1901 # Deal with common $arch aliases
1902 case "$arch" in
1903 arm*)
1904 arch="arm"
1905 ;;
1906 mips|mipsel|IP*)
1907 arch="mips"
1908 ;;
1909 mips64*)
1910 arch="mips"
1911 subarch="mips64"
1912 ;;
1913 parisc|hppa)
1914 arch="parisc"
1915 ;;
1916 parisc64|hppa64)
1917 arch="parisc"
1918 subarch="parisc64"
1919 ;;
1920 "Power Macintosh"|ppc|powerpc)
1921 arch="ppc"
1922 ;;
1923 ppc64|powerpc64)
1924 arch="ppc"
1925 subarch="ppc64"
1926 ;;
1927 s390|s390x)
1928 arch="s390"
1929 ;;
1930 sh4|sh)
1931 arch="sh4"
1932 ;;
1933 sun4u|sparc64)
1934 arch="sparc"
1935 subarch="sparc64"
1936 ;;
1937 i[3-6]86|i86pc|BePC|x86_64|amd64)
1938 arch="x86"
1939 ;;
1940 esac
1941
1942 is_in $arch $ARCH_LIST || echo "WARNING: unknown arch $arch"
1943 enable $arch
1944
1945 # Add processor-specific flags
1946 if test "$cpu" = generic; then
1947 : do nothing
1948 elif enabled ppc; then
1949
1950 case $(tolower $cpu) in
1951 601|ppc601|powerpc601)
1952 cpuflags="-mcpu=601"
1953 disable altivec
1954 ;;
1955 603*|ppc603*|powerpc603*)
1956 cpuflags="-mcpu=603"
1957 disable altivec
1958 ;;
1959 604*|ppc604*|powerpc604*)
1960 cpuflags="-mcpu=604"
1961 disable altivec
1962 ;;
1963 g3|75*|ppc75*|powerpc75*)
1964 cpuflags="-mcpu=750 -mpowerpc-gfxopt"
1965 disable altivec
1966 ;;
1967 g4|745*|ppc745*|powerpc745*)
1968 cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
1969 ;;
1970 74*|ppc74*|powerpc74*)
1971 cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
1972 ;;
1973 g5|970|ppc970|powerpc970|power4*)
1974 cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1975 ;;
1976 cell)
1977 cpuflags="-mcpu=cell"
1978 enable ldbrx
1979 ;;
1980 e500v2)
1981 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
1982 disable altivec
1983 ;;
1984 e500)
1985 cpuflags="-mcpu=8540 -mhard-float"
1986 disable altivec
1987 ;;
1988 esac
1989
1990 elif enabled x86; then
1991
1992 case $cpu in
1993 i[345]86|pentium)
1994 cpuflags="-march=$cpu"
1995 disable mmx
1996 ;;
1997 # targets that do NOT support conditional mov (cmov)
1998 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1999 cpuflags="-march=$cpu"
2000 disable cmov
2001 ;;
2002 # targets that do support conditional mov (cmov)
2003 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10)
2004 cpuflags="-march=$cpu"
2005 enable cmov
2006 enable fast_cmov
2007 ;;
2008 # targets that do support conditional mov but on which it's slow
2009 pentium4|pentium4m|prescott|nocona)
2010 cpuflags="-march=$cpu"
2011 enable cmov
2012 disable fast_cmov
2013 ;;
2014 esac
2015
2016 elif enabled sparc; then
2017
2018 case $cpu in
2019 sparc64)
2020 cpuflags="-mcpu=v9"
2021 ;;
2022 esac
2023
2024 elif enabled arm; then
2025
2026 case $cpu in
2027 armv*)
2028 cpuflags="-march=$cpu"
2029 ;;
2030 *)
2031 cpuflags="-mcpu=$cpu"
2032 ;;
2033 esac
2034
2035 elif enabled alpha; then
2036
2037 enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2038
2039 elif enabled bfin; then
2040
2041 cpuflags="-mcpu=$cpu"
2042
2043 elif enabled mips; then
2044
2045 cpuflags="-march=$cpu"
2046
2047 elif enabled avr32; then
2048
2049 case $cpu in
2050 ap7[02]0[0-2])
2051 subarch="avr32_ap"
2052 cpuflags="-mpart=$cpu"
2053 ;;
2054 ap)
2055 subarch="avr32_ap"
2056 cpuflags="-march=$cpu"
2057 ;;
2058 uc3[ab]*)
2059 subarch="avr32_uc"
2060 cpuflags="-mcpu=$cpu"
2061 ;;
2062 uc)
2063 subarch="avr32_uc"
2064 cpuflags="-march=$cpu"
2065 ;;
2066 esac
2067
2068 fi
2069
2070 add_cflags $cpuflags
2071 add_asflags $cpuflags
2072
2073 # compiler sanity check
2074 check_exec <<EOF
2075 int main(void){ return 0; }
2076 EOF
2077 if test "$?" != 0; then
2078 echo "$cc is unable to create an executable file."
2079 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2080 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2081 echo "Only do this if you know what cross compiling means."
2082 fi
2083 die "C compiler test failed."
2084 fi
2085
2086 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2087 check_cflags -std=c99
2088 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2089 #include <stdlib.h>
2090 EOF
2091 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2092 #include <stdlib.h>
2093 EOF
2094
2095 check_host_cflags -std=c99
2096
2097 case "$arch" in
2098 alpha|ia64|mips|parisc|sparc)
2099 spic=$shared
2100 ;;
2101 x86)
2102 subarch="x86_32"
2103 check_cc <<EOF && subarch="x86_64"
2104 int test[(int)sizeof(char*) - 7];
2105 EOF
2106 if test "$subarch" = "x86_64"; then
2107 spic=$shared
2108 fi
2109 ;;
2110 esac
2111
2112 enable $subarch
2113 enabled spic && enable pic
2114 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2115
2116 # OS specific
2117 case $target_os in
2118 beos|haiku|zeta)
2119 prefix_default="$HOME/config"
2120 # 3 gcc releases known for BeOS, each with ugly bugs
2121 gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
2122 case "$gcc_version" in
2123 2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
2124 disable mmx
2125 ;;
2126 *20010315*) echo "BeBits gcc"
2127 add_cflags -fno-expensive-optimizations
2128 ;;
2129 esac
2130 SHFLAGS=-nostart
2131 # enable BeOS things
2132 enable audio_beos
2133 # no need for libm, but the inet stuff
2134 # Check for BONE
2135 # XXX: actually should check for NOT net_server
2136 if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
2137 network_extralibs="-lbind -lsocket"
2138 else
2139 enable beos_netserver
2140 network_extralibs="-lnet"
2141 fi ;;
2142 sunos)
2143 FFSERVERLDFLAGS=""
2144 SHFLAGS='-shared -Wl,-h,$$(@F)'
2145 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2146 network_extralibs="-lsocket -lnsl"
2147 add_cppflags -D__EXTENSIONS__
2148 nm_opts='-P -g'
2149 ;;
2150 netbsd)
2151 oss_indev_extralibs="-lossaudio"
2152 oss_outdev_extralibs="-lossaudio"
2153 ;;
2154 openbsd)
2155 enable malloc_aligned
2156 # On OpenBSD 4.5. the compiler does not use PIC unless
2157 # explicitly using -fPIC. FFmpeg builds fine without PIC,
2158 # however the generated executable will not do anything
2159 # (simply quits with exit-code 1, no crash, no output).
2160 # Thus explicitly enable PIC here.
2161 enable pic
2162 SHFLAGS='-shared'
2163 oss_indev_extralibs="-lossaudio"
2164 oss_outdev_extralibs="-lossaudio"
2165 ;;
2166 freebsd|dragonfly)
2167 enable malloc_aligned
2168 ;;
2169 bsd/os)
2170 osextralibs="-lpoll -lgnugetopt"
2171 strip="strip -d"
2172 ;;
2173 darwin)
2174 enable malloc_aligned
2175 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2176 strip="strip -x"
2177 FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
2178 SLIBSUF=".dylib"
2179 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2180 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2181 FFSERVERLDFLAGS=-Wl,-bind_at_load
2182 objformat="macho"
2183 enabled x86_64 && objformat="macho64"
2184 enabled_any pic shared ||
2185 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2186 ;;
2187 mingw32*)
2188 if test $target_os = "mingw32ce"; then
2189 disable network
2190 else
2191 target_os=mingw32
2192 fi
2193 LIBTARGET=i386
2194 if enabled x86_64; then
2195 enable malloc_aligned
2196 LIBTARGET=x64
2197 elif enabled arm; then
2198 LIBTARGET=arm
2199 fi
2200 shlibdir_default="$bindir_default"
2201 disable ffserver
2202 SLIBPREF=""
2203 SLIBSUF=".dll"
2204 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2205 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2206 SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2207 SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2208 install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2209 install -d "$(LIBDIR)"; \
2210 install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2211 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2212 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2213 objformat="win32"
2214 enable dos_paths
2215 check_cflags -fno-common
2216 if ! enabled x86_64; then
2217 check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2218 die "ERROR: MinGW runtime version must be >= 3.15."
2219 enabled_any avisynth vfwcap_indev &&
2220 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
2221 die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
2222 fi
2223 ;;
2224 cygwin*)
2225 target_os=cygwin
2226 shlibdir_default="$bindir_default"
2227 SLIBPREF="cyg"
2228 SLIBSUF=".dll"
2229 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2230 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2231 SHFLAGS='-shared -Wl,--enable-auto-image-base'
2232 objformat="win32"
2233 enable dos_paths
2234 check_cflags -fno-common
2235 ;;
2236 *-dos|freedos|opendos)
2237 disable ffplay ffserver
2238 disable $INDEV_LIST $OUTDEV_LIST
2239 network_extralibs="-lsocket"
2240 objformat="coff"
2241 enable dos_paths
2242 ;;
2243 linux)
2244 enable dv1394
2245 ;;
2246 irix*)
2247 target_os=irix
2248 ranlib="echo ignoring ranlib"
2249 ;;
2250 os/2*)
2251 strip="lxlite"
2252 ln_s="cp -f"
2253 FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
2254 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2255 FFSERVERLDFLAGS=""
2256 LIBSUF="_s.a"
2257 SLIBPREF=""
2258 SLIBSUF=".dll"
2259 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2260 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2261 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2262 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2263 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2264 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2265 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2266 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2267 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2268 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2269 SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2270 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2271 enable dos_paths
2272 ;;
2273 gnu/kfreebsd)
2274 ;;
2275 gnu)
2276 ;;
2277 none)
2278 ;;
2279 *)
2280 die "Unknown OS '$target_os'."
2281 ;;
2282 esac
2283
2284 set_default $PATHS_LIST
2285
2286 add_extralibs $osextralibs
2287
2288 # Combine FFLDFLAGS and the LDFLAGS environment variable.
2289 LDFLAGS="$FFLDFLAGS $LDFLAGS"
2290
2291 # we need to build at least one lib type
2292 if ! enabled_any static shared; then
2293 cat <<EOF
2294 At least one library type must be built.
2295 Specify --enable-static to build the static libraries or --enable-shared to
2296 build the shared libraries as well. To only build the shared libraries specify
2297 --disable-static in addition to --enable-shared.
2298 EOF
2299 exit 1;
2300 fi
2301
2302 disabled static && LIBNAME=""
2303
2304 if enabled_any libfaad libfaadbin ; then
2305 if check_header faad.h; then
2306 check_cc <<EOF
2307 #include <faad.h>
2308 #ifndef FAAD2_VERSION
2309 ok faad1
2310 #endif
2311 int main(void) { return 0; }
2312 EOF
2313 test $? = 0 && enable libfaad2
2314 else
2315 die "FAAD test failed."
2316 fi
2317 fi
2318
2319
2320 die_license_disabled() {
2321 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2322 }
2323
2324 die_license_disabled gpl libfaad2
2325 die_license_disabled gpl libx264
2326 die_license_disabled gpl libxvid
2327 die_license_disabled gpl postproc
2328 die_license_disabled gpl x11grab
2329
2330 die_license_disabled nonfree libfaac
2331
2332 die_license_disabled version3 libopencore_amrnb
2333 die_license_disabled version3 libopencore_amrwb
2334
2335 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2336
2337 check_deps $ARCH_EXT_LIST
2338
2339 disabled optimizations || check_cflags -fomit-frame-pointer
2340
2341 enable_pic() {
2342 enable pic
2343 add_cppflags -DPIC
2344 add_cflags -fPIC
2345 add_asflags -fPIC
2346 }
2347
2348 enabled pic && enable_pic
2349
2350 check_cc <<EOF || die "Symbol mangling check failed."
2351 int ff_extern;
2352 EOF
2353 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2354 extern_prefix=${sym%%ff_extern*}
2355
2356 check_cc <<EOF && enable inline_asm
2357 void foo(void) { __asm__ volatile ("" ::); }
2358 EOF
2359
2360 _restrict=
2361 for restrict_keyword in restrict __restrict__ __restrict; do
2362 check_cc <<EOF && _restrict=$restrict_keyword && break
2363 void foo(char * $restrict_keyword p);
2364 EOF
2365 done
2366
2367 check_cc <<EOF && enable attribute_packed
2368 struct { int x; } __attribute__((packed)) x;
2369 EOF
2370
2371 check_cc <<EOF && enable attribute_may_alias
2372 union { int x; } __attribute__((may_alias)) x;
2373 EOF
2374
2375 check_cc <<EOF || die "endian test failed"
2376 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2377 EOF
2378 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2379
2380 if enabled alpha; then
2381
2382 check_cflags -mieee
2383
2384 elif enabled arm; then
2385
2386 check_cflags -marm
2387
2388 check_ld <<EOF && enable vfp_args
2389 __asm__ (".eabi_attribute 28, 1");
2390 int main(void) { return 0; }
2391 EOF
2392
2393 # We have to check if pld is a nop and disable it.
2394 check_asm pld '"pld [r0]"'
2395
2396 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2397 enabled armv6 && check_asm armv6 '"sadd16 r0, r0, r0"'
2398 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2399 enabled armvfp && check_asm armvfp '"fadds s0, s0, s0"'
2400 enabled iwmmxt && check_asm iwmmxt '"wunpckelub wr6, wr4"'
2401 enabled neon && check_asm neon '"vadd.i16 q0, q0, q0"'
2402
2403 enabled_all armv6t2 shared !pic && enable_pic
2404
2405 elif enabled ia64; then
2406
2407 # HACK: currently fails to build if .bss is > 4MB and shared libs are built
2408 enabled shared && enable_weak hardcoded_tables
2409
2410 elif enabled mips; then
2411
2412 check_asm loongson '"dmult.g $1, $2, $3"'
2413 enabled mmi && check_asm mmi '"lq $2, 0($2)"'
2414
2415 elif enabled ppc; then
2416
2417 enable local_aligned_8 local_aligned_16
2418
2419 check_asm dcbzl '"dcbzl 0, 1"'
2420 check_asm ppc4xx '"maclhw r10, r11, r12"'
2421 check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2422
2423 # AltiVec flags: The FSF version of GCC differs from the Apple version
2424 if enabled altivec; then
2425 check_cflags -maltivec -mabi=altivec &&
2426 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2427 check_cflags -faltivec
2428
2429 # check if our compiler supports Motorola AltiVec C API
2430 check_cc <<EOF || disable altivec
2431 $inc_altivec_h
2432 int main(void) {
2433 vector signed int v1, v2, v3;
2434 v1 = vec_add(v2,v3);
2435 return 0;
2436 }
2437 EOF
2438
2439 # check if our compiler supports braces for vector declarations
2440 check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2441 $inc_altivec_h
2442 int main (void) { (vector int) {1}; return 0; }
2443 EOF
2444 fi
2445
2446 elif enabled sparc; then
2447
2448 enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2449 add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2450
2451 elif enabled x86; then
2452
2453 enable local_aligned_8 local_aligned_16
2454
2455 # check whether EBP is available on x86
2456 # As 'i' is stored on the stack, this program will crash
2457 # if the base pointer is used to access it because the
2458 # base pointer is cleared in the inline assembly code.
2459 check_exec_crash <<EOF && enable ebp_available
2460 volatile int i=0;
2461 __asm__ volatile (
2462 "xorl %%ebp, %%ebp"
2463 ::: "%ebp");
2464 return i;
2465 EOF
2466
2467 # check whether EBX is available on x86
2468 check_asm ebx_available '""::"b"(0)' &&
2469 check_asm ebx_available '"":::"%ebx"'
2470
2471 # check whether more than 10 operands are supported
2472 check_cc <<EOF && enable ten_operands
2473 int main(void) {
2474 int x=0;
2475 __asm__ volatile(
2476 ""
2477 :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2478 );
2479 return 0;
2480 }
2481 EOF
2482
2483 # check whether binutils is new enough to compile SSSE3/MMX2
2484 enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2485 enabled mmx2 && check_asm mmx2 '"pmaxub %mm0, %mm1"'
2486
2487 check_asm bswap '"bswap %%eax" ::: "%eax"'
2488
2489 YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2490 enabled x86_64 && append YASMFLAGS "-m amd64"
2491 enabled pic && append YASMFLAGS "-DPIC"
2492 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
2493 case "$objformat" in
2494 elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2495 esac
2496 disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
2497
2498 case "$cpu" in
2499 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2500 disable fast_clz
2501 ;;
2502 esac
2503
2504 fi
2505
2506 if check_func dlopen; then
2507 ldl=
2508 elif check_func dlopen -ldl; then
2509 ldl=-ldl
2510 fi
2511
2512 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2513 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2514
2515 check_func fork
2516 check_func getaddrinfo $network_extralibs
2517 check_func gethrtime
2518 check_func getrusage
2519 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2520 check_func inet_aton $network_extralibs
2521 check_func isatty
2522 check_func ${malloc_prefix}memalign && enable memalign
2523 check_func mkstemp
2524 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
2525 check_func setrlimit
2526 check_func_headers io.h setmode
2527 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2528 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2529 check_func_headers windows.h GetProcessTimes
2530 check_func_headers windows.h VirtualAlloc
2531
2532 check_header conio.h
2533 check_header dlfcn.h
2534 check_header dxva2api.h
2535 check_header malloc.h
2536 check_header poll.h
2537 check_header sys/mman.h
2538 check_header sys/resource.h
2539 check_header sys/select.h
2540 check_header termios.h
2541 check_header vdpau/vdpau.h
2542 check_header vdpau/vdpau_x11.h
2543 check_header X11/extensions/XvMClib.h
2544
2545 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2546
2547 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2548 enabled_any $need_memalign ; then
2549 die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2550 fi
2551
2552 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
2553 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2554
2555 # check for some common methods of building with pthread support
2556 # do this before the optional library checks as some of them require pthreads
2557 if enabled pthreads; then
2558 if check_func pthread_create; then
2559 :
2560 elif check_func pthread_create -pthread; then
2561 add_cflags -pthread
2562 add_extralibs -pthread
2563 elif check_func pthread_create -pthreads; then
2564 add_cflags -pthreads
2565 add_extralibs -pthreads
2566 elif check_func pthread_create -lpthreadGC2; then
2567 add_extralibs -lpthreadGC2
2568 elif ! check_lib pthread.h pthread_create -lpthread; then
2569 die "ERROR: can't find pthreads library"
2570 fi
2571 fi
2572
2573 for thread in $THREADS_LIST; do
2574 if enabled $thread; then
2575 test -n "$thread_type" &&
2576 die "ERROR: Only one thread type must be selected." ||
2577 thread_type="$thread"
2578 fi
2579 done
2580
2581 check_lib math.h sin -lm
2582 check_lib va/va.h vaInitialize -lva
2583
2584 check_mathfunc exp2
2585 check_mathfunc exp2f
2586 check_mathfunc llrint
2587 check_mathfunc log2
2588 check_mathfunc log2f
2589 check_mathfunc lrint
2590 check_mathfunc lrintf
2591 check_mathfunc round
2592 check_mathfunc roundf
2593 check_mathfunc truncf
2594
2595 # these are off by default, so fail if requested and not available
2596 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2597 enabled libdirac && add_cflags $(pkg-config --cflags dirac) &&
2598 require libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2599 require libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2600 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2601 enabled libfaad && require2 libfaad faad.h faacDecOpen -lfaad
2602 enabled libgsm && require libgsm gsm/gsm.h gsm_create -lgsm
2603 enabled libmp3lame && require libmp3lame lame/lame.h lame_init -lmp3lame -lm
2604 enabled libnut && require libnut libnut.h nut_demuxer_init -lnut
2605 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2606 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2607 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2608 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2609 require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2610 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
2611 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2612 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2613 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 -lm &&
2614 { check_cpp_condition x264.h "X264_BUILD >= 83" ||
2615 die "ERROR: libx264 version must be >= 0.83."; }
2616 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
2617 enabled mlib && require mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2618
2619 # libdc1394 check
2620 if enabled libdc1394; then
2621 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2622 enable libdc1394_2; } ||
2623 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2624 enable libdc1394_1; } ||
2625 die "ERROR: No version of libdc1394 found "
2626 fi
2627
2628 SDL_CONFIG="${cross_prefix}sdl-config"
2629 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2630 sdl_cflags=$("${SDL_CONFIG}" --cflags)
2631 sdl_libs=$("${SDL_CONFIG}" --libs)
2632 check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2633 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2634 enable sdl &&
2635 check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2636 fi
2637
2638 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2639
2640 if enabled network; then
2641 check_type "sys/types.h sys/socket.h" socklen_t
2642 check_type netdb.h "struct addrinfo"
2643 check_type netinet/in.h "struct ipv6_mreq"
2644 check_type netinet/in.h "struct sockaddr_in6"
2645 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2646 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2647 # Prefer arpa/inet.h over winsock2
2648 if check_header arpa/inet.h ; then
2649 check_func closesocket
2650 elif check_header winsock2.h ; then
2651 check_func_headers winsock2.h closesocket -lws2 && \
2652 network_extralibs="-lws2" || \
2653 { check_func_headers winsock2.h closesocket -lws2_32 && \
2654 network_extralibs="-lws2_32"; }
2655 check_type ws2tcpip.h socklen_t
2656 check_type ws2tcpip.h "struct addrinfo"
2657 check_type ws2tcpip.h "struct ipv6_mreq"
2658 check_type ws2tcpip.h "struct sockaddr_in6"
2659 check_type ws2tcpip.h "struct sockaddr_storage"
2660 check_struct winsock2.h "struct sockaddr" sa_len
2661 else
2662 disable network
2663 fi
2664 fi
2665
2666 check_header linux/videodev.h
2667 check_header linux/videodev2.h
2668 check_header sys/videoio.h
2669
2670 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2671
2672 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2673 { check_header dev/bktr/ioctl_meteor.h &&
2674 check_header dev/bktr/ioctl_bt848.h; } ||
2675 { check_header machine/ioctl_meteor.h &&
2676 check_header machine/ioctl_bt848.h; } ||
2677 { check_header dev/video/meteor/ioctl_meteor.h &&
2678 check_header dev/video/bktr/ioctl_bt848.h; } ||
2679 check_header dev/ic/bt8xx.h
2680
2681 check_header sys/soundcard.h
2682 check_header soundcard.h
2683
2684 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2685
2686 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2687
2688 enabled x11grab &&
2689 check_header X11/Xlib.h &&
2690 check_header X11/extensions/XShm.h &&
2691 check_header X11/extensions/Xfixes.h &&
2692 check_func XOpenDisplay -lX11 &&
2693 check_func XShmCreateImage -lX11 -lXext &&
2694 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2695
2696 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2697 check_cpp_condition \
2698 vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2699 { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2700 disable vdpau; }
2701 fi
2702
2703 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2704
2705 # add some useful compiler flags if supported
2706 check_cflags -Wdeclaration-after-statement
2707 check_cflags -Wall
2708 check_cflags -Wno-switch
2709 check_cflags -Wdisabled-optimization
2710 check_cflags -Wpointer-arith
2711 check_cflags -Wredundant-decls
2712 check_cflags -Wno-pointer-sign
2713 check_cflags -Wcast-qual
2714 check_cflags -Wwrite-strings
2715 check_cflags -Wtype-limits
2716 check_cflags -Wundef
2717 check_cflags -Wmissing-prototypes
2718 enabled extra_warnings && check_cflags -Winline
2719
2720 # add some linker flags
2721 check_ldflags -Wl,--warn-common
2722 check_ldflags -Wl,--as-needed
2723 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2724 check_ldflags -Wl,-Bsymbolic
2725
2726 echo "X{};" > $TMPV
2727 test_ldflags -Wl,--version-script,$TMPV &&
2728 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2729
2730 if enabled small; then
2731 add_cflags $size_cflags
2732 optimizations="small"
2733 elif enabled optimizations; then
2734 add_cflags $speed_cflags
2735 fi
2736 check_cflags -fno-math-errno
2737 check_cflags -fno-signed-zeros
2738
2739 if enabled icc; then
2740 # Just warnings, no remarks
2741 check_cflags -w1
2742 # -wd: Disable following warnings
2743 # 144, 167, 556: -Wno-pointer-sign
2744 # 10006: ignoring unknown option -fno-signed-zeros
2745 # 10156: ignoring option '-W'; no argument required
2746 check_cflags -wd144,167,556,10006,10156
2747 # 11030: Warning unknown option --as-needed
2748 # 10156: ignoring option '-export'; no argument required
2749 check_ldflags -wd10156,11030
2750 # Allow to compile with optimizations
2751 check_ldflags -march=$cpu
2752 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2753 enable ebp_available
2754 elif enabled ccc; then
2755 # disable some annoying warnings
2756 add_cflags -msg_disable cvtu32to64
2757 add_cflags -msg_disable embedcomment
2758 add_cflags -msg_disable needconstext
2759 add_cflags -msg_disable nomainieee
2760 add_cflags -msg_disable ptrmismatch1
2761 add_cflags -msg_disable unreachcode
2762 elif enabled gcc; then
2763 check_cflags -fno-tree-vectorize
2764 check_cflags -Werror=implicit
2765 check_cflags -Werror=missing-prototypes
2766 elif enabled clang; then
2767 check_cflags -Qunused-arguments
2768 elif enabled armcc; then
2769 # 2523: use of inline assembler is deprecated
2770 add_cflags -Wrvct,--diag_suppress=2523
2771 add_cflags -Wrvct,--diag_suppress=1207
2772 elif enabled tms470; then
2773 add_cflags -pds=824 -pds=837
2774 fi
2775
2776 if enabled gprof; then
2777 add_cflags -p
2778 add_ldflags -p
2779 fi
2780
2781 # Find out if the .align argument is a power of two or not.
2782 check_asm asmalign_pot '".align 3"'
2783
2784 enabled_any $DECODER_LIST && enable decoders
2785 enabled_any $ENCODER_LIST && enable encoders
2786 enabled_any $HWACCEL_LIST && enable hwaccels
2787 enabled_any $BSF_LIST && enable bsfs
2788 enabled_any $DEMUXER_LIST && enable demuxers
2789 enabled_any $MUXER_LIST && enable muxers
2790 enabled_any $FILTER_LIST && enable filters
2791 enabled_any $INDEV_LIST && enable indevs
2792 enabled_any $OUTDEV_LIST && enable outdevs
2793 enabled_any $PROTOCOL_LIST && enable protocols
2794
2795 enabled_any $THREADS_LIST && enable threads
2796
2797 check_deps $CONFIG_LIST \
2798 $CONFIG_EXTRA \
2799 $HAVE_LIST \
2800 $DECODER_LIST \
2801 $ENCODER_LIST \
2802 $HWACCEL_LIST \
2803 $PARSER_LIST \
2804 $BSF_LIST \
2805 $DEMUXER_LIST \
2806 $MUXER_LIST \
2807 $FILTER_LIST \
2808 $INDEV_LIST \
2809 $OUTDEV_LIST \
2810 $PROTOCOL_LIST \
2811
2812 enabled asm || disable $ARCH_LIST $ARCH_EXT_LIST
2813
2814 echo "install prefix $prefix"
2815 echo "source path $source_path"
2816 echo "C compiler $cc"
2817 echo ".align is power-of-two $asmalign_pot"
2818 echo "ARCH $arch ($cpu)"
2819 if test "$build_suffix" != ""; then
2820 echo "build suffix $build_suffix"
2821 fi
2822 if test "$extra_version" != ""; then
2823 echo "version string suffix $extra_version"
2824 fi
2825 echo "big-endian ${bigendian-no}"
2826 echo "runtime cpu detection ${runtime_cpudetect-no}"
2827 if enabled x86; then
2828 echo "yasm ${yasm-no}"
2829 echo "MMX enabled ${mmx-no}"
2830 echo "MMX2 enabled ${mmx2-no}"
2831 echo "3DNow! enabled ${amd3dnow-no}"
2832 echo "3DNow! extended enabled ${amd3dnowext-no}"
2833 echo "SSE enabled ${sse-no}"
2834 echo "SSSE3 enabled ${ssse3-no}"
2835 echo "CMOV enabled ${cmov-no}"
2836 echo "CMOV is fast ${fast_cmov-no}"
2837 echo "EBX available ${ebx_available-no}"
2838 echo "EBP available ${ebp_available-no}"
2839 echo "10 operands supported ${ten_operands-no}"
2840 fi
2841 if enabled arm; then
2842 echo "ARMv5TE enabled ${armv5te-no}"
2843 echo "ARMv6 enabled ${armv6-no}"
2844 echo "ARMv6T2 enabled ${armv6t2-no}"
2845 echo "ARM VFP enabled ${armvfp-no}"
2846 echo "IWMMXT enabled ${iwmmxt-no}"
2847 echo "NEON enabled ${neon-no}"
2848 fi
2849 if enabled mips; then
2850 echo "MMI enabled ${mmi-no}"
2851 fi
2852 if enabled ppc; then
2853 echo "AltiVec enabled ${altivec-no}"
2854 echo "PPC 4xx optimizations ${ppc4xx-no}"
2855 echo "dcbzl available ${dcbzl-no}"
2856 echo "performance report ${powerpc_perf-no}"
2857 fi
2858 if enabled sparc; then
2859 echo "VIS enabled ${vis-no}"
2860 fi
2861 echo "gprof enabled ${gprof-no}"
2862 echo "debug symbols ${debug-no}"
2863 echo "strip symbols ${stripping-no}"
2864 echo "optimizations ${optimizations-no}"
2865 echo "static ${static-no}"
2866 echo "shared ${shared-no}"
2867 echo "postprocessing support ${postproc-no}"
2868 echo "new filter support ${avfilter-no}"
2869 echo "filters using lavformat ${avfilter_lavf-no}"
2870 echo "network support ${network-no}"
2871 echo "threading support ${thread_type-no}"
2872 echo "SDL support ${sdl-no}"
2873 echo "Sun medialib support ${mlib-no}"
2874 echo "AVISynth enabled ${avisynth-no}"
2875 echo "libdc1394 support ${libdc1394-no}"
2876 echo "libdirac enabled ${libdirac-no}"
2877 echo "libfaac enabled ${libfaac-no}"
2878 echo "libfaad enabled ${libfaad-no}"
2879 echo "libfaad dlopened ${libfaadbin-no}"
2880 echo "libgsm enabled ${libgsm-no}"
2881 echo "libmp3lame enabled ${libmp3lame-no}"
2882 echo "libnut enabled ${libnut-no}"
2883 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2884 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2885 echo "libopenjpeg enabled ${libopenjpeg-no}"
2886 echo "libschroedinger enabled ${libschroedinger-no}"
2887 echo "libspeex enabled ${libspeex-no}"
2888 echo "libtheora enabled ${libtheora-no}"
2889 echo "libvorbis enabled ${libvorbis-no}"
2890 echo "libx264 enabled ${libx264-no}"
2891 echo "libxvid enabled ${libxvid-no}"
2892 echo "zlib enabled ${zlib-no}"
2893 echo "bzlib enabled ${bzlib-no}"
2894 echo
2895
2896 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2897 echo "Enabled ${type}s:"
2898 eval list=\$$(toupper $type)_LIST
2899 for part in $list; do
2900 enabled $part && echo ${part%_*}
2901 done | sort | pr -3 -t
2902 echo
2903 done
2904
2905 license="LGPL version 2.1 or later"
2906 if enabled nonfree; then
2907 license="nonfree and unredistributable"
2908 elif enabled gplv3; then
2909 license="GPL version 3 or later"
2910 elif enabled lgplv3; then
2911 license="LGPL version 3 or later"
2912 elif enabled gpl; then
2913 license="GPL version 2 or later"
2914 fi
2915
2916 echo "License: $license"
2917
2918 echo "Creating config.mak and config.h..."
2919
2920 # build tree in object directory if source path is different from current one
2921 if enabled source_path_used; then
2922 DIRS="
2923 doc
2924 libavcodec
2925 libavcodec/$arch
2926 libavdevice
2927 libavfilter
2928 libavformat
2929 libavutil
2930 libavutil/$arch
2931 libpostproc
2932 libswscale
2933 libswscale/$arch
2934 tests
2935 tools
2936 "
2937 FILES="
2938 Makefile
2939 common.mak
2940 subdir.mak
2941 doc/texi2pod.pl
2942 libavcodec/Makefile
2943 libavdevice/Makefile
2944 libavfilter/Makefile
2945 libavformat/Makefile
2946 libavutil/Makefile
2947 libpostproc/Makefile
2948 libswscale/Makefile
2949 "
2950 for dir in $DIRS ; do
2951 mkdir -p $dir
2952 done
2953 for f in $FILES ; do
2954 $ln_s "$source_path/$f" $f
2955 done
2956 fi
2957
2958 enabled stripping || strip="echo skipping strip"
2959
2960 cat > config.mak <<EOF
2961 # Automatically generated by configure - do not modify!
2962 ifndef FFMPEG_CONFIG_MAK
2963 FFMPEG_CONFIG_MAK=1
2964 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
2965 prefix=$prefix
2966 LIBDIR=\$(DESTDIR)$libdir
2967 SHLIBDIR=\$(DESTDIR)$shlibdir
2968 INCDIR=\$(DESTDIR)$incdir
2969 BINDIR=\$(DESTDIR)$bindir
2970 DATADIR=\$(DESTDIR)$datadir
2971 MANDIR=\$(DESTDIR)$mandir
2972 SRC_PATH="$source_path"
2973 SRC_PATH_BARE=$source_path
2974 BUILD_ROOT="$PWD"
2975 ARCH=$arch
2976 CC=$cc
2977 AS=$as
2978 LD=$ld
2979 DEPCC=$dep_cc
2980 YASM=$yasmexe
2981 YASMDEP=$yasmexe
2982 AR=$ar
2983 RANLIB=$ranlib
2984 CP=cp -p
2985 LN_S=$ln_s
2986 STRIP=$strip
2987 CPPFLAGS=$CPPFLAGS
2988 CFLAGS=$CFLAGS
2989 ASFLAGS=$ASFLAGS
2990 CC_O=$CC_O
2991 LDFLAGS=$LDFLAGS
2992 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
2993 SHFLAGS=$SHFLAGS
2994 YASMFLAGS=$YASMFLAGS
2995 BUILDSUF=$build_suffix
2996 FULLNAME=$FULLNAME
2997 LIBPREF=$LIBPREF
2998 LIBSUF=$LIBSUF
2999 LIBNAME=$LIBNAME
3000 SLIBPREF=$SLIBPREF
3001 SLIBSUF=$SLIBSUF
3002 EXESUF=$EXESUF
3003 EXTRA_VERSION=$extra_version
3004 DEPFLAGS=$DEPFLAGS
3005 CCDEP=$CCDEP
3006 ASDEP=$ASDEP
3007 CC_DEPFLAGS=$CC_DEPFLAGS
3008 AS_DEPFLAGS=$AS_DEPFLAGS
3009 HOSTCC=$host_cc
3010 HOSTCFLAGS=$host_cflags
3011 HOSTEXESUF=$HOSTEXESUF
3012 HOSTLDFLAGS=$host_ldflags
3013 HOSTLIBS=$host_libs
3014 TARGET_EXEC=$target_exec
3015 TARGET_PATH=$target_path
3016 SDL_LIBS=$sdl_libs
3017 SDL_CFLAGS=$sdl_cflags
3018 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3019 EXTRALIBS=$extralibs
3020 INSTALL=install
3021 LIBTARGET=${LIBTARGET}
3022 SLIBNAME=${SLIBNAME}
3023 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3024 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3025 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3026 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3027 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3028 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3029 EOF
3030
3031 get_version(){
3032 name=$1
3033 file=$source_path/$2
3034 eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3035 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3036 lcname=$(tolower $name)
3037 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3038 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3039 }
3040
3041 get_version LIBSWSCALE libswscale/swscale.h
3042 get_version LIBPOSTPROC libpostproc/postprocess.h
3043 get_version LIBAVCODEC libavcodec/avcodec.h
3044 get_version LIBAVDEVICE libavdevice/avdevice.h
3045 get_version LIBAVFORMAT libavformat/avformat.h
3046 get_version LIBAVUTIL libavutil/avutil.h
3047 get_version LIBAVFILTER libavfilter/avfilter.h
3048
3049 enabled asmalign_pot || align_shift="1 <<"
3050
3051 cat > $TMPH <<EOF
3052 /* Automatically generated by configure - do not modify! */
3053 #ifndef FFMPEG_CONFIG_H
3054 #define FFMPEG_CONFIG_H
3055 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3056 #define FFMPEG_LICENSE "$(c_escape $license)"
3057 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3058 #define CC_TYPE "$cc_type"
3059 #define CC_VERSION $cc_version
3060 #define restrict $_restrict
3061 #define ASMALIGN(ZEROBITS) ".align $align_shift " #ZEROBITS "\\n\\t"
3062 #define EXTERN_PREFIX "${extern_prefix}"
3063 #define EXTERN_ASM ${extern_prefix}
3064 EOF
3065
3066 test -n "$malloc_prefix" &&
3067 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3068
3069 if enabled small || disabled optimizations; then
3070 echo "#undef av_always_inline" >> $TMPH
3071 echo "#define av_always_inline" >> $TMPH
3072 fi
3073
3074 print_config ARCH_ $TMPH config.mak $ARCH_LIST
3075 print_config HAVE_ $TMPH config.mak $HAVE_LIST
3076 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST \
3077 $CONFIG_EXTRA \
3078 $DECODER_LIST \
3079 $ENCODER_LIST \
3080 $HWACCEL_LIST \
3081 $PARSER_LIST \
3082 $BSF_LIST \
3083 $DEMUXER_LIST \
3084 $MUXER_LIST \
3085 $FILTER_LIST \
3086 $PROTOCOL_LIST \
3087 $INDEV_LIST \
3088 $OUTDEV_LIST \
3089
3090 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3091 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3092
3093 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3094 cp_if_changed $TMPH config.h
3095
3096 cat > $TMPH <<EOF
3097 /* Generated by ffconf */
3098 #ifndef AVUTIL_AVCONFIG_H
3099 #define AVUTIL_AVCONFIG_H
3100 EOF
3101
3102 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3103
3104 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3105
3106 cp_if_changed $TMPH libavutil/avconfig.h
3107
3108 # build pkg-config files
3109
3110 pkgconfig_generate(){
3111 name=$1
3112 shortname=${name#lib}${build_suffix}
3113 comment=$2
3114 version=$3
3115 libs=$4
3116 requires=$5
3117 cat <<EOF > $name/$name.pc
3118 prefix=$prefix
3119 exec_prefix=\${prefix}
3120 libdir=$libdir
3121 includedir=$incdir
3122
3123 Name: $name
3124 Description: $comment
3125 Version: $version
3126 Requires: $(enabled shared || echo $requires)
3127 Requires.private: $(enabled shared && echo $requires)
3128 Conflicts:
3129 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3130 Libs.private: $(enabled shared && echo $libs)
3131 Cflags: -I\${includedir}
3132 EOF
3133 cat <<EOF > $name/$name-uninstalled.pc
3134 prefix=
3135 exec_prefix=
3136 libdir=\${pcfiledir}
3137 includedir=${source_path}
3138
3139 Name: $name
3140 Description: $comment
3141 Version: $version
3142 Requires: $requires
3143 Conflicts:
3144 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3145 Cflags: -I\${includedir}
3146 EOF
3147 }
3148
3149 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3150 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3151 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3152 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3153 enabled avfilter &&
3154 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3155 enabled postproc &&
3156 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3157 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"