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