configure: do not use $_
[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 --samples=PATH location of test samples for FATE
247
248 NOTE: Object files are built at the place where configure is launched.
249 EOF
250 exit 0
251 }
252
253 log(){
254 echo "$@" >> $logfile
255 }
256
257 log_file(){
258 log BEGIN $1
259 pr -n -t $1 >> $logfile
260 log END $1
261 }
262
263 echolog(){
264 log "$@"
265 echo "$@"
266 }
267
268 die(){
269 echolog "$@"
270 cat <<EOF
271
272 If you think configure made a mistake, make sure you are using the latest
273 version from SVN. If the latest version fails, report the problem to the
274 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
275 EOF
276 if disabled logging; then
277 cat <<EOF
278 Rerun configure with logging enabled (do not use --disable-logging), and
279 include the log this produces with your report.
280 EOF
281 else
282 cat <<EOF
283 Include the log file "$logfile" produced by configure as this will help
284 solving the problem.
285 EOF
286 fi
287 exit 1
288 }
289
290 # Avoid locale weirdness, besides we really just want to translate ASCII.
291 toupper(){
292 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
293 }
294
295 tolower(){
296 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
297 }
298
299 c_escape(){
300 echo "$*" | sed 's/["\\]/\\\0/g'
301 }
302
303 sh_quote(){
304 v=$(echo "$1" | sed "s/'/'\\\\''/g")
305 test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
306 echo "$v"
307 }
308
309 filter(){
310 pat=$1
311 shift
312 for v; do
313 eval "case $v in $pat) echo $v ;; esac"
314 done
315 }
316
317 map(){
318 m=$1
319 shift
320 for v; do eval $m; done
321 }
322
323 set_all(){
324 value=$1
325 shift
326 for var in $*; do
327 eval $var=$value
328 done
329 }
330
331 set_weak(){
332 value=$1
333 shift
334 for var; do
335 eval : \${$var:=$value}
336 done
337 }
338
339 pushvar(){
340 for var in $*; do
341 eval level=\${${var}_level:=0}
342 eval ${var}_${level}="\$$var"
343 eval ${var}_level=$(($level+1))
344 done
345 }
346
347 popvar(){
348 for var in $*; do
349 eval level=\${${var}_level:-0}
350 test $level = 0 && continue
351 eval level=$(($level-1))
352 eval $var="\${${var}_${level}}"
353 eval ${var}_level=$level
354 eval unset ${var}_${level}
355 done
356 }
357
358 enable(){
359 set_all yes $*
360 }
361
362 disable(){
363 set_all no $*
364 }
365
366 enable_weak(){
367 set_weak yes $*
368 }
369
370 disable_weak(){
371 set_weak no $*
372 }
373
374 enable_safe(){
375 for var; do
376 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
377 done
378 }
379
380 disable_safe(){
381 for var; do
382 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
383 done
384 }
385
386 do_enable_deep(){
387 for var; do
388 enabled $var && continue
389 eval sel="\$${var}_select"
390 eval sgs="\$${var}_suggest"
391 pushvar var sgs
392 enable_deep $sel
393 popvar sgs
394 enable_deep_weak $sgs
395 popvar var
396 done
397 }
398
399 enable_deep(){
400 do_enable_deep $*
401 enable $*
402 }
403
404 enable_deep_weak(){
405 do_enable_deep $*
406 enable_weak $*
407 }
408
409 enabled(){
410 test "${1#!}" = "$1" && op== || op=!=
411 eval test "x\$${1#!}" $op "xyes"
412 }
413
414 disabled(){
415 test "${1#!}" = "$1" && op== || op=!=
416 eval test "x\$${1#!}" $op "xno"
417 }
418
419 enabled_all(){
420 for opt; do
421 enabled $opt || return 1
422 done
423 }
424
425 disabled_all(){
426 for opt; do
427 disabled $opt || return 1
428 done
429 }
430
431 enabled_any(){
432 for opt; do
433 enabled $opt && return 0
434 done
435 }
436
437 disabled_any(){
438 for opt; do
439 disabled $opt && return 0
440 done
441 return 1
442 }
443
444 set_default(){
445 for opt; do
446 eval : \${$opt:=\$${opt}_default}
447 done
448 }
449
450 is_in(){
451 value=$1
452 shift
453 for var in $*; do
454 [ $var = $value ] && return 0
455 done
456 return 1
457 }
458
459 check_deps(){
460 for cfg; do
461 cfg="${cfg#!}"
462 enabled ${cfg}_checking && die "Circular dependency for $cfg."
463 disabled ${cfg}_checking && continue
464 enable ${cfg}_checking
465
466 eval dep_all="\$${cfg}_deps"
467 eval dep_any="\$${cfg}_deps_any"
468 eval dep_sel="\$${cfg}_select"
469 eval dep_sgs="\$${cfg}_suggest"
470 eval dep_ifa="\$${cfg}_if"
471 eval dep_ifn="\$${cfg}_if_any"
472
473 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
474 check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
475 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
476
477 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
478 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
479 enabled_all $dep_all || disable $cfg
480 enabled_any $dep_any || disable $cfg
481 disabled_any $dep_sel && disable $cfg
482
483 if enabled $cfg; then
484 eval dep_extralibs="\$${cfg}_extralibs"
485 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
486 enable_deep $dep_sel
487 enable_deep_weak $dep_sgs
488 fi
489
490 disable ${cfg}_checking
491 done
492 }
493
494 print_config(){
495 pfx=$1
496 header=$2
497 makefile=$3
498 shift 3
499 for cfg; do
500 ucname="$(toupper $cfg)"
501 if enabled $cfg; then
502 echo "#define ${pfx}${ucname} 1" >> $header
503 echo "${pfx}${ucname}=yes" >> $makefile
504 else
505 echo "#define ${pfx}${ucname} 0" >> $header
506 echo "!${pfx}${ucname}=yes" >> $makefile
507 fi
508 done
509 }
510
511 flags_saved(){
512 (: ${SAVE_CFLAGS?}) 2> /dev/null
513 }
514
515 save_flags(){
516 flags_saved && return
517 SAVE_CFLAGS="$CFLAGS"
518 SAVE_LDFLAGS="$LDFLAGS"
519 SAVE_extralibs="$extralibs"
520 }
521
522 restore_flags(){
523 flags_saved || return
524 CFLAGS="$SAVE_CFLAGS"
525 LDFLAGS="$SAVE_LDFLAGS"
526 extralibs="$SAVE_extralibs"
527 unset SAVE_CFLAGS
528 unset SAVE_LDFLAGS
529 unset SAVE_extralibs
530 }
531
532 temp_cflags(){
533 save_flags
534 CFLAGS="$CFLAGS $*"
535 }
536
537 temp_ldflags(){
538 save_flags
539 LDFLAGS="$LDFLAGS $*"
540 }
541
542 temp_extralibs(){
543 save_flags
544 extralibs="$extralibs $*"
545 }
546
547 append(){
548 var=$1
549 shift
550 flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
551 eval "$var=\"\$$var $*\""
552 }
553
554 add_cppflags(){
555 append CPPFLAGS $($filter_cppflags "$@")
556 }
557
558 add_cflags(){
559 append CFLAGS $($filter_cflags "$@")
560 }
561
562 add_asflags(){
563 append ASFLAGS $($filter_asflags "$@")
564 }
565
566 add_ldflags(){
567 append LDFLAGS "$@"
568 }
569
570 add_extralibs(){
571 append extralibs "$@"
572 }
573
574 check_cmd(){
575 log "$@"
576 "$@" >> $logfile 2>&1
577 }
578
579 check_cc(){
580 log check_cc "$@"
581 cat > $TMPC
582 log_file $TMPC
583 check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
584 }
585
586 check_cpp(){
587 log check_cpp "$@"
588 cat > $TMPC
589 log_file $TMPC
590 check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
591 }
592
593 check_as(){
594 log check_as "$@"
595 cat > $TMPC
596 log_file $TMPC
597 check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
598 }
599
600 check_asm(){
601 log check_asm "$@"
602 name="$1"
603 code="$2"
604 shift 2
605 disable $name
606 check_as "$@" <<EOF && enable $name
607 void foo(void){ __asm__ volatile($code); }
608 EOF
609 }
610
611 check_yasm(){
612 log check_yasm "$@"
613 echo "$1" > $TMPS
614 log_file $TMPS
615 shift 1
616 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
617 }
618
619 check_ld(){
620 log check_ld "$@"
621 flags=''
622 libs=''
623 for f; do
624 test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
625 done
626 check_cc $($filter_cflags $flags) || return
627 check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
628 }
629
630 check_cppflags(){
631 log check_cppflags "$@"
632 set -- $($filter_cppflags "$@")
633 check_cc "$@" <<EOF && append CPPFLAGS "$@"
634 int x;
635 EOF
636 }
637
638 check_cflags(){
639 log check_cflags "$@"
640 set -- $($filter_cflags "$@")
641 check_cc "$@" <<EOF && append CFLAGS "$@"
642 int x;
643 EOF
644 }
645
646 test_ldflags(){
647 log test_ldflags "$@"
648 check_ld "$@" <<EOF
649 int main(void){ return 0; }
650 EOF
651 }
652
653 check_ldflags(){
654 log check_ldflags "$@"
655 test_ldflags "$@" && add_ldflags "$@"
656 }
657
658 check_header(){
659 log check_header "$@"
660 header=$1
661 shift
662 disable_safe $header
663 check_cpp "$@" <<EOF && enable_safe $header
664 #include <$header>
665 int x;
666 EOF
667 }
668
669 check_func(){
670 log check_func "$@"
671 func=$1
672 shift
673 disable $func
674 check_ld "$@" <<EOF && enable $func
675 extern int $func();
676 int main(void){ $func(); }
677 EOF
678 }
679
680 check_mathfunc(){
681 log check_mathfunc "$@"
682 func=$1
683 shift
684 disable $func
685 check_ld "$@" <<EOF && enable $func
686 #include <math.h>
687 float foo(float f) { return $func(f); }
688 int main(void){ return 0; }
689 EOF
690 }
691
692 check_func_headers(){
693 log check_func_headers "$@"
694 headers=$1
695 func=$2
696 shift 2
697 disable $func
698 incs=""
699 for hdr in $headers; do
700 incs="$incs
701 #include <$hdr>"
702 done
703 check_ld "$@" <<EOF && enable $func && enable_safe $headers
704 $incs
705 int main(int argc, char **argv){
706 return (long) $func;
707 }
708 EOF
709 }
710
711 check_cpp_condition(){
712 log check_cpp_condition "$@"
713 header=$1
714 condition=$2
715 shift 2
716 check_cpp $($filter_cppflags "$@") <<EOF
717 #include <$header>
718 #if !($condition)
719 #error "unsatisfied condition: $condition"
720 #endif
721 EOF
722 }
723
724 check_lib(){
725 log check_lib "$@"
726 header="$1"
727 func="$2"
728 shift 2
729 temp_extralibs "$@"
730 check_header $header && check_func $func && add_extralibs "$@"
731 err=$?
732 restore_flags
733 return $err
734 }
735
736 check_lib2(){
737 log check_lib2 "$@"
738 headers="$1"
739 func="$2"
740 shift 2
741 check_func_headers "$headers" $func "$@" && add_extralibs "$@"
742 }
743
744 check_exec(){
745 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
746 }
747
748 check_exec_crash(){
749 code=$(cat)
750
751 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
752 # are safe but may not be available everywhere. Thus we use
753 # raise(SIGTERM) instead. The check is run in a subshell so we
754 # can redirect the "Terminated" message from the shell. SIGBUS
755 # is not defined by standard C so it is used conditionally.
756
757 (check_exec "$@") >> $logfile 2>&1 <<EOF
758 #include <signal.h>
759 static void sighandler(int sig){
760 raise(SIGTERM);
761 }
762 int main(void){
763 signal(SIGILL, sighandler);
764 signal(SIGFPE, sighandler);
765 signal(SIGSEGV, sighandler);
766 #ifdef SIGBUS
767 signal(SIGBUS, sighandler);
768 #endif
769 { $code }
770 }
771 EOF
772 }
773
774 check_type(){
775 log check_type "$@"
776 headers=$1
777 type=$2
778 shift 2
779 disable_safe "$type"
780 incs=""
781 for hdr in $headers; do
782 incs="$incs
783 #include <$hdr>"
784 done
785 check_cc "$@" <<EOF && enable_safe "$type"
786 $incs
787 $type v;
788 EOF
789 }
790
791 check_struct(){
792 log check_type "$@"
793 headers=$1
794 struct=$2
795 member=$3
796 shift 3
797 disable_safe "${struct}_${member}"
798 incs=""
799 for hdr in $headers; do
800 incs="$incs
801 #include <$hdr>"
802 done
803 check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
804 $incs
805 const void *p = &(($struct *)0)->$member;
806 EOF
807 }
808
809 require(){
810 name="$1"
811 header="$2"
812 func="$3"
813 shift 3
814 check_lib $header $func "$@" || die "ERROR: $name not found"
815 }
816
817 require2(){
818 name="$1"
819 headers="$2"
820 func="$3"
821 shift 3
822 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
823 }
824
825 check_foo_config(){
826 cfg=$1
827 pkg=$2
828 header=$3
829 func=$4
830 shift 4
831 disable $cfg
832 check_cmd ${pkg}-config --version
833 err=$?
834 if test "$err" = 0; then
835 temp_cflags $(${pkg}-config --cflags)
836 temp_extralibs $(${pkg}-config --libs)
837 check_lib "$@" $header $func && enable $cfg
838 fi
839 return $err
840 }
841
842 check_host_cc(){
843 log check_host_cc "$@"
844 cat > $TMPC
845 log_file $TMPC
846 check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
847 }
848
849 check_host_cflags(){
850 log check_host_cflags "$@"
851 check_host_cc "$@" <<EOF && append host_cflags "$@"
852 int x;
853 EOF
854 }
855
856 apply(){
857 file=$1
858 shift
859 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
860 }
861
862 cp_if_changed(){
863 cmp -s "$1" "$2" &&
864 echo "$2 is unchanged" ||
865 cp -f "$1" "$2"
866 }
867
868 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
869 # system-dependent things.
870
871 COMPONENT_LIST="
872 bsfs
873 decoders
874 demuxers
875 encoders
876 filters
877 hwaccels
878 indevs
879 muxers
880 outdevs
881 parsers
882 protocols
883 "
884
885 CONFIG_LIST="
886 $COMPONENT_LIST
887 aandct
888 avcodec
889 avdevice
890 avfilter
891 avfilter_lavf
892 avformat
893 avisynth
894 beos_netserver
895 bzlib
896 dct
897 doc
898 dwt
899 dxva2
900 fastdiv
901 ffmpeg
902 ffplay
903 ffprobe
904 ffserver
905 fft
906 golomb
907 gpl
908 gprof
909 gray
910 h264dsp
911 hardcoded_tables
912 libdc1394
913 libdirac
914 libfaac
915 libfaad
916 libfaadbin
917 libgsm
918 libmp3lame
919 libnut
920 libopencore_amrnb
921 libopencore_amrwb
922 libopenjpeg
923 libschroedinger
924 libspeex
925 libtheora
926 libvorbis
927 libx264
928 libxvid
929 lpc
930 lsp
931 mdct
932 memalign_hack
933 mlib
934 mpegaudio_hp
935 network
936 nonfree
937 pic
938 postproc
939 powerpc_perf
940 rdft
941 runtime_cpudetect
942 shared
943 small
944 sram
945 static
946 swscale
947 swscale_alpha
948 vaapi
949 vdpau
950 version3
951 x11grab
952 zlib
953 "
954
955 THREADS_LIST='
956 beosthreads
957 os2threads
958 pthreads
959 w32threads
960 '
961
962 ARCH_LIST='
963 alpha
964 arm
965 avr32
966 avr32_ap
967 avr32_uc
968 bfin
969 ia64
970 m68k
971 mips
972 mips64
973 parisc
974 ppc
975 ppc64
976 s390
977 sh4
978 sparc
979 sparc64
980 tomi
981 x86
982 x86_32
983 x86_64
984 '
985
986 ARCH_EXT_LIST='
987 altivec
988 amd3dnow
989 amd3dnowext
990 armv5te
991 armv6
992 armv6t2
993 armvfp
994 iwmmxt
995 mmi
996 mmx
997 mmx2
998 neon
999 ppc4xx
1000 sse
1001 ssse3
1002 vis
1003 '
1004
1005 HAVE_LIST_PUB='
1006 bigendian
1007 '
1008
1009 HAVE_LIST="
1010 $ARCH_EXT_LIST
1011 $HAVE_LIST_PUB
1012 $THREADS_LIST
1013 alsa_asoundlib_h
1014 altivec_h
1015 arpa_inet_h
1016 attribute_may_alias
1017 attribute_packed
1018 bswap
1019 closesocket
1020 cmov
1021 conio_h
1022 dcbzl
1023 dev_bktr_ioctl_bt848_h
1024 dev_bktr_ioctl_meteor_h
1025 dev_ic_bt8xx_h
1026 dev_video_meteor_ioctl_meteor_h
1027 dev_video_bktr_ioctl_bt848_h
1028 dlfcn_h
1029 dlopen
1030 dos_paths
1031 ebp_available
1032 ebx_available
1033 exp2
1034 exp2f
1035 fast_64bit
1036 fast_clz
1037 fast_cmov
1038 fast_unaligned
1039 fork
1040 getaddrinfo
1041 gethrtime
1042 GetProcessMemoryInfo
1043 GetProcessTimes
1044 getrusage
1045 struct_rusage_ru_maxrss
1046 inet_aton
1047 inline_asm
1048 isatty
1049 ldbrx
1050 libdc1394_1
1051 libdc1394_2
1052 llrint
1053 local_aligned_16
1054 local_aligned_8
1055 log2
1056 log2f
1057 loongson
1058 lrint
1059 lrintf
1060 lzo1x_999_compress
1061 machine_ioctl_bt848_h
1062 machine_ioctl_meteor_h
1063 malloc_h
1064 memalign
1065 mkstemp
1066 pld
1067 posix_memalign
1068 round
1069 roundf
1070 sdl
1071 sdl_video_size
1072 setmode
1073 socklen_t
1074 soundcard_h
1075 poll_h
1076 setrlimit
1077 struct_addrinfo
1078 struct_ipv6_mreq
1079 struct_sockaddr_in6
1080 struct_sockaddr_sa_len
1081 struct_sockaddr_storage
1082 sys_mman_h
1083 sys_resource_h
1084 sys_select_h
1085 sys_soundcard_h
1086 sys_videoio_h
1087 ten_operands
1088 termios_h
1089 threads
1090 truncf
1091 vfp_args
1092 VirtualAlloc
1093 winsock2_h
1094 xform_asm
1095 yasm
1096 "
1097
1098 # options emitted with CONFIG_ prefix but not available on command line
1099 CONFIG_EXTRA="
1100 avutil
1101 gplv3
1102 lgplv3
1103 "
1104
1105 CMDLINE_SELECT="
1106 $ARCH_EXT_LIST
1107 $CONFIG_LIST
1108 $THREADS_LIST
1109 asm
1110 cross_compile
1111 debug
1112 extra_warnings
1113 logging
1114 optimizations
1115 stripping
1116 yasm
1117 "
1118
1119 PATHS_LIST='
1120 bindir
1121 datadir
1122 incdir
1123 libdir
1124 mandir
1125 prefix
1126 shlibdir
1127 '
1128
1129 CMDLINE_SET="
1130 $PATHS_LIST
1131 arch
1132 as
1133 build_suffix
1134 cc
1135 cpu
1136 cross_prefix
1137 dep_cc
1138 extra_version
1139 host_cc
1140 host_cflags
1141 host_ldflags
1142 host_libs
1143 host_os
1144 ld
1145 logfile
1146 malloc_prefix
1147 nm
1148 samples
1149 source_path
1150 strip
1151 sysinclude
1152 sysroot
1153 target_exec
1154 target_os
1155 target_path
1156 "
1157
1158 CMDLINE_APPEND="
1159 extra_cflags
1160 "
1161
1162 # code dependency declarations
1163
1164 # architecture extensions
1165
1166 armv5te_deps="arm"
1167 armv6_deps="arm"
1168 armv6t2_deps="arm"
1169 armvfp_deps="arm"
1170 iwmmxt_deps="arm"
1171 neon_deps="arm"
1172
1173 mmi_deps="mips"
1174
1175 altivec_deps="ppc"
1176 ppc4xx_deps="ppc"
1177
1178 vis_deps="sparc"
1179
1180 x86_64_suggest="cmov fast_cmov"
1181 amd3dnow_deps="mmx"
1182 amd3dnowext_deps="amd3dnow"
1183 mmx_deps="x86"
1184 mmx2_deps="mmx"
1185 sse_deps="mmx"
1186 ssse3_deps="sse"
1187
1188 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1189 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1190 fast_unaligned_if_any="armv6 ppc x86"
1191
1192 need_memalign="altivec neon sse"
1193 inline_asm_deps="!tms470"
1194
1195 # subsystems
1196 mdct_select="fft"
1197 rdft_select="fft"
1198
1199 # decoders / encoders / hardware accelerators
1200 aac_decoder_select="mdct rdft aac_parser"
1201 aac_encoder_select="mdct"
1202 ac3_decoder_select="mdct ac3_parser"
1203 alac_encoder_select="lpc"
1204 amrnb_decoder_select="lsp"
1205 atrac1_decoder_select="mdct"
1206 atrac3_decoder_select="mdct"
1207 binkaudio_dct_decoder_select="mdct rdft dct"
1208 binkaudio_rdft_decoder_select="mdct rdft"
1209 cavs_decoder_select="golomb"
1210 cook_decoder_select="mdct"
1211 cscd_decoder_suggest="zlib"
1212 dca_decoder_select="mdct"
1213 dnxhd_encoder_select="aandct"
1214 dxa_decoder_select="zlib"
1215 eac3_decoder_select="ac3_decoder"
1216 eamad_decoder_select="aandct"
1217 eatgq_decoder_select="aandct"
1218 eatqi_decoder_select="aandct"
1219 ffv1_decoder_select="golomb"
1220 flac_decoder_select="golomb"
1221 flac_encoder_select="golomb lpc"
1222 flashsv_decoder_select="zlib"
1223 flashsv_encoder_select="zlib"
1224 flv_decoder_select="h263_decoder"
1225 flv_encoder_select="h263_encoder"
1226 h261_encoder_select="aandct"
1227 h263_decoder_select="h263_parser"
1228 h263_encoder_select="aandct"
1229 h263_vaapi_hwaccel_deps="va_va_h"
1230 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1231 h263i_decoder_select="h263_decoder"
1232 h263p_encoder_select="h263_encoder"
1233 h264_decoder_select="golomb h264dsp"
1234 h264_dxva2_hwaccel_deps="dxva2api_h"
1235 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1236 h264_vaapi_hwaccel_deps="va_va_h"
1237 h264_vaapi_hwaccel_select="vaapi"
1238 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1239 h264_vdpau_decoder_select="vdpau h264_decoder"
1240 imc_decoder_select="fft mdct"
1241 jpegls_decoder_select="golomb"
1242 jpegls_encoder_select="golomb"
1243 ljpeg_encoder_select="aandct"
1244 loco_decoder_select="golomb"
1245 mjpeg_encoder_select="aandct"
1246 mlp_decoder_select="mlp_parser"
1247 mpeg1video_encoder_select="aandct"
1248 mpeg2video_encoder_select="aandct"
1249 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1250 mpeg4_encoder_select="h263_encoder"
1251 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1252 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1253 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1254 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1255 mpeg2_vaapi_hwaccel_deps="va_va_h"
1256 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1257 mpeg4_vaapi_hwaccel_deps="va_va_h"
1258 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1259 mpeg4_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1260 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1261 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1262 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1263 msmpeg4v1_decoder_select="h263_decoder"
1264 msmpeg4v1_encoder_select="h263_encoder"
1265 msmpeg4v2_decoder_select="h263_decoder"
1266 msmpeg4v2_encoder_select="h263_encoder"
1267 msmpeg4v3_decoder_select="h263_decoder"
1268 msmpeg4v3_encoder_select="h263_encoder"
1269 nellymoser_decoder_select="mdct"
1270 nellymoser_encoder_select="mdct"
1271 png_decoder_select="zlib"
1272 png_encoder_select="zlib"
1273 qcelp_decoder_select="lsp"
1274 qdm2_decoder_select="mdct rdft"
1275 rv10_decoder_select="h263_decoder"
1276 rv10_encoder_select="h263_encoder"
1277 rv20_decoder_select="h263_decoder"
1278 rv20_encoder_select="h263_encoder"
1279 rv30_decoder_select="golomb h264dsp"
1280 rv40_decoder_select="golomb h264dsp"
1281 shorten_decoder_select="golomb"
1282 sipr_decoder_select="lsp"
1283 snow_decoder_select="dwt"
1284 snow_encoder_select="aandct dwt"
1285 sonic_decoder_select="golomb"
1286 sonic_encoder_select="golomb"
1287 sonic_ls_encoder_select="golomb"
1288 svq1_encoder_select="aandct"
1289 svq3_decoder_select="golomb h264dsp"
1290 svq3_decoder_suggest="zlib"
1291 theora_decoder_select="vp3_decoder"
1292 tiff_decoder_suggest="zlib"
1293 tiff_encoder_suggest="zlib"
1294 truehd_decoder_select="mlp_decoder"
1295 tscc_decoder_select="zlib"
1296 twinvq_decoder_select="mdct lsp"
1297 vc1_decoder_select="h263_decoder"
1298 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1299 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1300 vc1_vaapi_hwaccel_deps="va_va_h"
1301 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1302 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1303 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1304 vorbis_decoder_select="mdct"
1305 vorbis_encoder_select="mdct"
1306 vp6a_decoder_select="vp6_decoder"
1307 vp6f_decoder_select="vp6_decoder"
1308 wmapro_decoder_select="mdct"
1309 wmav1_decoder_select="mdct"
1310 wmav1_encoder_select="mdct"
1311 wmav2_decoder_select="mdct"
1312 wmav2_encoder_select="mdct"
1313 wmavoice_decoder_select="lsp"
1314 wmv1_decoder_select="h263_decoder"
1315 wmv1_encoder_select="h263_encoder"
1316 wmv2_decoder_select="h263_decoder"
1317 wmv2_encoder_select="h263_encoder"
1318 wmv3_decoder_select="vc1_decoder"
1319 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1320 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1321 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1322 zlib_decoder_select="zlib"
1323 zlib_encoder_select="zlib"
1324 zmbv_decoder_select="zlib"
1325 zmbv_encoder_select="zlib"
1326
1327 # parsers
1328 h264_parser_select="golomb h264dsp"
1329
1330 # bitstream_filters
1331 aac_adtstoasc_bsf_select="aac_parser"
1332
1333 # external libraries
1334 libdirac_decoder_deps="libdirac !libschroedinger"
1335 libdirac_encoder_deps="libdirac"
1336 libfaac_encoder_deps="libfaac"
1337 libfaad_decoder_deps="libfaad"
1338 libfaadbin_decoder_extralibs='$ldl'
1339 libgsm_decoder_deps="libgsm"
1340 libgsm_encoder_deps="libgsm"
1341 libgsm_ms_decoder_deps="libgsm"
1342 libgsm_ms_encoder_deps="libgsm"
1343 libmp3lame_encoder_deps="libmp3lame"
1344 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1345 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1346 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1347 libopenjpeg_decoder_deps="libopenjpeg"
1348 libschroedinger_decoder_deps="libschroedinger"
1349 libschroedinger_encoder_deps="libschroedinger"
1350 libspeex_decoder_deps="libspeex"
1351 libtheora_encoder_deps="libtheora"
1352 libvorbis_encoder_deps="libvorbis"
1353 libx264_encoder_deps="libx264"
1354 libxvid_encoder_deps="libxvid"
1355
1356 # demuxers / muxers
1357 ac3_demuxer_deps="ac3_parser"
1358 asf_stream_muxer_select="asf_muxer"
1359 avisynth_demuxer_deps="avisynth"
1360 dirac_demuxer_deps="dirac_parser"
1361 eac3_demuxer_select="ac3_parser"
1362 ipod_muxer_select="mov_muxer"
1363 libnut_demuxer_deps="libnut"
1364 libnut_muxer_deps="libnut"
1365 matroska_audio_muxer_select="matroska_muxer"
1366 matroska_demuxer_suggest="zlib bzlib"
1367 mov_demuxer_suggest="zlib"
1368 mp3_demuxer_deps="mpegaudio_parser"
1369 mp4_muxer_select="mov_muxer"
1370 mpegtsraw_demuxer_select="mpegts_demuxer"
1371 mxf_d10_muxer_select="mxf_muxer"
1372 ogg_demuxer_select="golomb"
1373 psp_muxer_select="mov_muxer"
1374 rtsp_demuxer_deps="sdp_demuxer"
1375 rtsp_muxer_deps="sdp_demuxer"
1376 rtsp_muxer_select="rtp_muxer"
1377 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1378 sdp_demuxer_select="asf_demuxer rm_demuxer"
1379 spdif_muxer_select="aac_parser"
1380 tg2_muxer_select="mov_muxer"
1381 tgp_muxer_select="mov_muxer"
1382 w64_demuxer_deps="wav_demuxer"
1383
1384 # indevs / outdevs
1385 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1386 alsa_indev_extralibs="-lasound"
1387 alsa_outdev_deps="alsa_asoundlib_h"
1388 alsa_outdev_extralibs="-lasound"
1389 audio_beos_indev_deps="audio_beos"
1390 audio_beos_indev_extralibs="-lmedia -lbe"
1391 audio_beos_outdev_deps="audio_beos"
1392 audio_beos_outdev_extralibs="-lmedia -lbe"
1393 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1394 dv1394_indev_deps="dv1394 dv_demuxer"
1395 jack_indev_deps="jack_jack_h"
1396 jack_indev_extralibs="-ljack"
1397 libdc1394_indev_deps="libdc1394"
1398 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1399 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1400 v4l_indev_deps="linux_videodev_h"
1401 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1402 vfwcap_indev_deps="capCreateCaptureWindow"
1403 vfwcap_indev_extralibs="-lavicap32"
1404 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1405 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1406
1407 # protocols
1408 gopher_protocol_deps="network"
1409 http_protocol_deps="network"
1410 http_protocol_select="tcp_protocol"
1411 rtmp_protocol_deps="tcp_protocol"
1412 rtp_protocol_deps="udp_protocol"
1413 tcp_protocol_deps="network"
1414 udp_protocol_deps="network"
1415
1416 # filters
1417 movie_filter_deps="avfilter_lavf"
1418 avfilter_lavf_deps="avformat"
1419
1420 # libraries
1421 avdevice_deps="avcodec avformat"
1422 avformat_deps="avcodec"
1423
1424 # programs
1425 ffmpeg_deps="avcodec avformat swscale"
1426 ffplay_deps="avcodec avformat swscale sdl"
1427 ffplay_select="rdft"
1428 ffprobe_deps="avcodec avformat"
1429 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1430 ffserver_extralibs='$ldl'
1431
1432 doc_deps="texi2html"
1433
1434 # default parameters
1435
1436 logfile="config.err"
1437
1438 # installation paths
1439 prefix_default="/usr/local"
1440 bindir_default='${prefix}/bin'
1441 datadir_default='${prefix}/share/ffmpeg'
1442 incdir_default='${prefix}/include'
1443 libdir_default='${prefix}/lib'
1444 mandir_default='${prefix}/share/man'
1445 shlibdir_default="$libdir_default"
1446
1447 # toolchain
1448 ar="ar"
1449 cc_default="gcc"
1450 cc_version=\"unknown\"
1451 host_cc_default="gcc"
1452 ln_s="ln -sf"
1453 nm_default="nm"
1454 objformat="elf"
1455 ranlib="ranlib"
1456 strip_default="strip"
1457 yasmexe="yasm"
1458
1459 nm_opts='-g'
1460
1461 # machine
1462 arch_default=$(uname -m)
1463 cpu="generic"
1464
1465 # OS
1466 target_os_default=$(tolower $(uname -s))
1467 host_os=$target_os_default
1468
1469 # configurable options
1470 enable avcodec
1471 enable avdevice
1472 enable avformat
1473 enable avutil
1474 enable asm
1475 enable debug
1476 enable doc
1477 enable fastdiv
1478 enable ffmpeg
1479 enable ffplay
1480 enable ffprobe
1481 enable ffserver
1482 enable mpegaudio_hp
1483 enable network
1484 enable optimizations
1485 enable protocols
1486 enable static
1487 enable stripping
1488 enable swscale
1489 enable swscale_alpha
1490
1491 # build settings
1492 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1493 FFSERVERLDFLAGS=-Wl,-E
1494 LIBPREF="lib"
1495 LIBSUF=".a"
1496 FULLNAME='$(NAME)$(BUILDSUF)'
1497 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1498 SLIBPREF="lib"
1499 SLIBSUF=".so"
1500 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1501 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1502 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1503 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1504
1505 CC_O='-o $@'
1506
1507 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1508 host_libs='-lm'
1509
1510 target_path='$(CURDIR)'
1511
1512 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1513 # full relative path for objects in subdirectories for non-recursive Make.
1514 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1515 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1516
1517 # find source path
1518 source_path="$(dirname "$0")"
1519 enable source_path_used
1520 if test -f configure; then
1521 source_path="$(pwd)"
1522 disable source_path_used
1523 else
1524 source_path="$(cd "$source_path"; pwd)"
1525 echo "$source_path" | grep -q '[[:blank:]]' &&
1526 die "Out of tree builds are impossible with whitespace in source path."
1527 test -e "$source_path/config.h" &&
1528 die "Out of tree builds are impossible with config.h in source dir."
1529 fi
1530
1531 for v in "$@"; do
1532 r=${v#*=}
1533 l=${v%"$r"}
1534 r=$(sh_quote "$r")
1535 FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1536 done
1537
1538 find_things(){
1539 thing=$1
1540 pattern=$2
1541 file=$source_path/$3
1542 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1543 }
1544
1545 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
1546 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
1547 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
1548 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
1549 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
1550 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
1551 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
1552 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
1553 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
1554 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1555 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
1556
1557 enable $ARCH_EXT_LIST \
1558 $DECODER_LIST \
1559 $ENCODER_LIST \
1560 $HWACCEL_LIST \
1561 $PARSER_LIST \
1562 $BSF_LIST \
1563 $DEMUXER_LIST \
1564 $MUXER_LIST \
1565 $FILTER_LIST \
1566 $PROTOCOL_LIST \
1567 $INDEV_LIST \
1568 $OUTDEV_LIST \
1569
1570 die_unknown(){
1571 echo "Unknown option \"$1\"."
1572 echo "See $0 --help for available options."
1573 exit 1
1574 }
1575
1576 show_list() {
1577 suffix=_$1
1578 shift
1579 echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1580 exit 0
1581 }
1582
1583 for opt do
1584 optval="${opt#*=}"
1585 case "$opt" in
1586 --extra-ldflags=*) add_ldflags $optval
1587 ;;
1588 --extra-libs=*) add_extralibs $optval
1589 ;;
1590 --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1591 ;;
1592 --enable-debug=*) debuglevel="$optval"
1593 ;;
1594 --disable-everything)
1595 map 'eval disable \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1596 ;;
1597 --enable-*=*|--disable-*=*)
1598 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1599 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1600 eval list=\$$(toupper $thing)_LIST
1601 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1602 $action $(filter "$name" $list)
1603 ;;
1604 --enable-?*|--disable-?*)
1605 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1606 if is_in $option $COMPONENT_LIST; then
1607 test $action = disable && action=unset
1608 eval $action \$$(toupper ${option%s})_LIST
1609 elif is_in $option $CMDLINE_SELECT; then
1610 $action $option
1611 else
1612 die_unknown $opt
1613 fi
1614 ;;
1615 --list-*)
1616 NAME="${opt#--list-}"
1617 is_in $NAME $COMPONENT_LIST || die_unknown $opt
1618 NAME=${NAME%s}
1619 eval show_list $NAME \$$(toupper $NAME)_LIST
1620 ;;
1621 --help|-h) show_help
1622 ;;
1623 *)
1624 optname="${opt%%=*}"
1625 optname="${optname#--}"
1626 optname=$(echo "$optname" | sed 's/-/_/g')
1627 if is_in $optname $CMDLINE_SET; then
1628 eval $optname='$optval'
1629 elif is_in $optname $CMDLINE_APPEND; then
1630 append $optname "$optval"
1631 else
1632 die_unknown $opt
1633 fi
1634 ;;
1635 esac
1636 done
1637
1638 disabled logging && logfile=/dev/null
1639
1640 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1641 set >> $logfile
1642
1643 test -n "$cross_prefix" && enable cross_compile
1644
1645 if enabled cross_compile; then
1646 test -n "$arch" && test -n "$target_os" ||
1647 die "Must specify target arch and OS when cross-compiling"
1648 fi
1649
1650 set_default arch target_os
1651
1652 ar="${cross_prefix}${ar}"
1653 cc_default="${cross_prefix}${cc_default}"
1654 nm_default="${cross_prefix}${nm_default}"
1655 ranlib="${cross_prefix}${ranlib}"
1656 strip_default="${cross_prefix}${strip_default}"
1657
1658 sysinclude_default="${sysroot}/usr/include"
1659
1660 set_default cc nm strip sysinclude
1661 enabled cross_compile || host_cc_default=$cc
1662 set_default host_cc
1663
1664 exesuf() {
1665 case $1 in
1666 mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1667 esac
1668 }
1669
1670 EXESUF=$(exesuf $target_os)
1671 HOSTEXESUF=$(exesuf $host_os)
1672
1673 # set temporary file name
1674 : ${TMPDIR:=$TEMPDIR}
1675 : ${TMPDIR:=$TMP}
1676 : ${TMPDIR:=/tmp}
1677
1678 if ! check_cmd type mktemp; then
1679 # simple replacement for missing mktemp
1680 # NOT SAFE FOR GENERAL USE
1681 mktemp(){
1682 echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1683 }
1684 fi
1685
1686 tmpfile(){
1687 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1688 (set -C; exec > $tmp) 2>/dev/null ||
1689 die "Unable to create temporary file in $TMPDIR."
1690 append TMPFILES $tmp
1691 eval $1=$tmp
1692 }
1693
1694 trap 'rm -f -- $TMPFILES' EXIT
1695 trap exit HUP INT TERM
1696
1697 tmpfile TMPC .c
1698 tmpfile TMPE $EXESUF
1699 tmpfile TMPH .h
1700 tmpfile TMPO .o
1701 tmpfile TMPS .S
1702 tmpfile TMPV .ver
1703 tmpfile TMPSH .sh
1704
1705 unset -f mktemp
1706
1707 # make sure we can execute files in $TMPDIR
1708 cat > $TMPSH 2>> $logfile <<EOF
1709 #! /bin/sh
1710 EOF
1711 chmod +x $TMPSH >> $logfile 2>&1
1712 if ! $TMPSH >> $logfile 2>&1; then
1713 cat <<EOF
1714 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
1715 variable to another directory and make sure that it is not mounted noexec.
1716 EOF
1717 die "Sanity test failed."
1718 fi
1719
1720 filter_cflags=echo
1721 filter_cppflags=echo
1722 filter_asflags=echo
1723
1724 if $cc -v 2>&1 | grep -qi ^gcc; then
1725 cc_type=gcc
1726 cc_version=__VERSION__
1727 if ! $cc -dumpversion | grep -q '^2\.'; then
1728 CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1729 AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1730 fi
1731 speed_cflags='-O3'
1732 size_cflags='-Os'
1733 elif $cc --version 2>/dev/null | grep -q Intel; then
1734 cc_type=icc
1735 cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1736 CC_DEPFLAGS='-MMD'
1737 AS_DEPFLAGS='-MMD'
1738 speed_cflags='-O3'
1739 size_cflags='-Os'
1740 elif $cc -v 2>&1 | grep -q xlc; then
1741 cc_type=xlc
1742 cc_version="AV_STRINGIFY(__IBMC__)"
1743 speed_cflags='-O5'
1744 size_cflags='-O5 -qcompact'
1745 elif $cc -V 2>/dev/null | grep -q Compaq; then
1746 cc_type=ccc
1747 cc_version="AV_STRINGIFY(__DECC_VER)"
1748 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1749 debuglevel=3
1750 add_ldflags -Wl,-z,now # calls to libots crash without this
1751 speed_cflags='-fast'
1752 size_cflags='-O1'
1753 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1754 test -d "$sysroot" || die "No valid sysroot specified."
1755 cc_type=armcc
1756 cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1757 armcc_conf="$PWD/armcc.conf"
1758 $cc --arm_linux_configure \
1759 --arm_linux_config_file="$armcc_conf" \
1760 --configure_sysroot="$sysroot" \
1761 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1762 die "Error creating armcc configuration file."
1763 cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1764 as_default="${cross_prefix}gcc"
1765 CC_DEPFLAGS='-MMD'
1766 AS_DEPFLAGS='-MMD'
1767 speed_cflags='-O3'
1768 size_cflags='-Os'
1769 elif $cc -version 2>/dev/null | grep -q TMS470; then
1770 cc_type=tms470
1771 cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1772 cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1773 CC_O='-fr=$(@D)'
1774 as_default="${cross_prefix}gcc"
1775 ld_default="${cross_prefix}gcc"
1776 TMPO=$(basename $TMPC .c).o
1777 append TMPFILES $TMPO
1778 add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1779 CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1780 AS_DEPFLAGS='-MMD'
1781 speed_cflags='-O3 -mf=5'
1782 size_cflags='-O3 -mf=2'
1783 filter_cflags=tms470_flags
1784 tms470_flags(){
1785 for flag; do
1786 case $flag in
1787 -march=*|-mcpu=*)
1788 case "${flag#*=}" in
1789 armv7-a|cortex-a*) echo -mv=7a8 ;;
1790 armv7-r|cortex-r*) echo -mv=7r4 ;;
1791 armv7-m|cortex-m*) echo -mv=7m3 ;;
1792 armv6*|arm11*) echo -mv=6 ;;
1793 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1794 echo -mv=5e ;;
1795 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
1796 esac
1797 ;;
1798 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
1799 -mfpu=vfp) echo --float_support=vfpv2 ;;
1800 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
1801 -msoft-float) echo --float_support=vfplib ;;
1802 -O[0-3]|-mf=*) echo $flag ;;
1803 -g) echo -g -mn ;;
1804 -pds=*) echo $flag ;;
1805 esac
1806 done
1807 }
1808 elif $cc -v 2>&1 | grep -q clang; then
1809 cc_type=clang
1810 cc_version=__VERSION__
1811 CC_DEPFLAGS='-MMD'
1812 AS_DEPFLAGS='-MMD'
1813 speed_cflags='-O3'
1814 size_cflags='-Os'
1815 elif $cc -V 2>&1 | grep -q Sun; then
1816 cc_type=suncc
1817 cc_version="AV_STRINGIFY(__SUNPRO_C)"
1818 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1819 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1820 speed_cflags='-O5'
1821 size_cflags='-O5 -xspace'
1822 filter_cflags=suncc_flags
1823 suncc_flags(){
1824 for flag; do
1825 case $flag in
1826 -march=*|-mcpu=*)
1827 case "${flag#*=}" in
1828 native) echo -xtarget=native ;;
1829 v9) echo -xarch=sparc ;;
1830 ultrasparc) echo -xarch=sparcvis ;;
1831 ultrasparc3|niagara*) echo -xarch=sparcvis2 ;;
1832 i586|pentium) echo -xchip=pentium ;;
1833 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
1834 pentium3*|c3-2) echo -xtarget=pentium3 ;;
1835 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
1836 pentium4*) echo -xtarget=pentium4 ;;
1837 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
1838 *-sse3) echo -xarch=sse3 ;;
1839 core2) echo -xarch=ssse3 -xchip=core2 ;;
1840 amdfam10|barcelona) echo -xarch=sse4_1 ;;
1841 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
1842 k8|opteron|athlon64|athlon-fx)
1843 echo -xarch=sse2a ;;
1844 athlon*) echo -xarch=pentium_proa ;;
1845 esac
1846 ;;
1847 -std=c99) echo -xc99 ;;
1848 -fomit-frame-pointer) echo -xregs=frameptr ;;
1849 -fPIC) echo -KPIC -xcode=pic32 ;;
1850 -W*,*) echo $flag ;;
1851 -f*-*|-W*) ;;
1852 *) echo $flag ;;
1853 esac
1854 done
1855 }
1856 fi
1857
1858 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1859
1860 : ${as_default:=$cc}
1861 : ${dep_cc_default:=$cc}
1862 : ${ld_default:=$cc}
1863 set_default as dep_cc ld
1864
1865 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1866 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1867
1868 add_cflags $extra_cflags
1869 add_asflags $extra_cflags
1870
1871 if test -n "$sysroot"; then
1872 case "$cc_type" in
1873 gcc)
1874 add_cppflags --sysroot="$sysroot"
1875 add_ldflags --sysroot="$sysroot"
1876 ;;
1877 tms470)
1878 add_cppflags -I"$sysinclude"
1879 add_ldflags --sysroot="$sysroot"
1880 ;;
1881 clang)
1882 add_cppflags -isysroot "$sysroot"
1883 add_ldflags -isysroot "$sysroot"
1884 ;;
1885 esac
1886 fi
1887
1888 if test "$cpu" = host; then
1889 enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1890
1891 case "$cc_type" in
1892 gcc)
1893 check_native(){
1894 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1895 sed -n "/$1=/{
1896 s/.*$1=\\([^ ]*\\).*/\\1/
1897 p
1898 q
1899 }" $TMPE
1900 }
1901 cpu=$(check_native -march || check_native -mcpu)
1902 ;;
1903 esac
1904
1905 test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1906 fi
1907
1908 # Deal with common $arch aliases
1909 case "$arch" in
1910 arm*)
1911 arch="arm"
1912 ;;
1913 mips|mipsel|IP*)
1914 arch="mips"
1915 ;;
1916 mips64*)
1917 arch="mips"
1918 subarch="mips64"
1919 ;;
1920 parisc|hppa)
1921 arch="parisc"
1922 ;;
1923 parisc64|hppa64)
1924 arch="parisc"
1925 subarch="parisc64"
1926 ;;
1927 "Power Macintosh"|ppc|powerpc)
1928 arch="ppc"
1929 ;;
1930 ppc64|powerpc64)
1931 arch="ppc"
1932 subarch="ppc64"
1933 ;;
1934 s390|s390x)
1935 arch="s390"
1936 ;;
1937 sh4|sh)
1938 arch="sh4"
1939 ;;
1940 sun4u|sparc64)
1941 arch="sparc"
1942 subarch="sparc64"
1943 ;;
1944 i[3-6]86|i86pc|BePC|x86_64|amd64)
1945 arch="x86"
1946 ;;
1947 esac
1948
1949 is_in $arch $ARCH_LIST || echo "WARNING: unknown arch $arch"
1950 enable $arch
1951
1952 # Add processor-specific flags
1953 if test "$cpu" = generic; then
1954 : do nothing
1955 elif enabled ppc; then
1956
1957 case $(tolower $cpu) in
1958 601|ppc601|powerpc601)
1959 cpuflags="-mcpu=601"
1960 disable altivec
1961 ;;
1962 603*|ppc603*|powerpc603*)
1963 cpuflags="-mcpu=603"
1964 disable altivec
1965 ;;
1966 604*|ppc604*|powerpc604*)
1967 cpuflags="-mcpu=604"
1968 disable altivec
1969 ;;
1970 g3|75*|ppc75*|powerpc75*)
1971 cpuflags="-mcpu=750 -mpowerpc-gfxopt"
1972 disable altivec
1973 ;;
1974 g4|745*|ppc745*|powerpc745*)
1975 cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
1976 ;;
1977 74*|ppc74*|powerpc74*)
1978 cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
1979 ;;
1980 g5|970|ppc970|powerpc970|power4*)
1981 cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1982 ;;
1983 cell)
1984 cpuflags="-mcpu=cell"
1985 enable ldbrx
1986 ;;
1987 e500v2)
1988 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
1989 disable altivec
1990 ;;
1991 e500)
1992 cpuflags="-mcpu=8540 -mhard-float"
1993 disable altivec
1994 ;;
1995 esac
1996
1997 elif enabled x86; then
1998
1999 case $cpu in
2000 i[345]86|pentium)
2001 cpuflags="-march=$cpu"
2002 disable mmx
2003 ;;
2004 # targets that do NOT support conditional mov (cmov)
2005 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2006 cpuflags="-march=$cpu"
2007 disable cmov
2008 ;;
2009 # targets that do support conditional mov (cmov)
2010 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10)
2011 cpuflags="-march=$cpu"
2012 enable cmov
2013 enable fast_cmov
2014 ;;
2015 # targets that do support conditional mov but on which it's slow
2016 pentium4|pentium4m|prescott|nocona)
2017 cpuflags="-march=$cpu"
2018 enable cmov
2019 disable fast_cmov
2020 ;;
2021 esac
2022
2023 elif enabled sparc; then
2024
2025 case $cpu in
2026 sparc64)
2027 cpuflags="-mcpu=v9"
2028 ;;
2029 esac
2030
2031 elif enabled arm; then
2032
2033 case $cpu in
2034 armv*)
2035 cpuflags="-march=$cpu"
2036 ;;
2037 *)
2038 cpuflags="-mcpu=$cpu"
2039 ;;
2040 esac
2041
2042 elif enabled alpha; then
2043
2044 enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2045
2046 elif enabled bfin; then
2047
2048 cpuflags="-mcpu=$cpu"
2049
2050 elif enabled mips; then
2051
2052 cpuflags="-march=$cpu"
2053
2054 elif enabled avr32; then
2055
2056 case $cpu in
2057 ap7[02]0[0-2])
2058 subarch="avr32_ap"
2059 cpuflags="-mpart=$cpu"
2060 ;;
2061 ap)
2062 subarch="avr32_ap"
2063 cpuflags="-march=$cpu"
2064 ;;
2065 uc3[ab]*)
2066 subarch="avr32_uc"
2067 cpuflags="-mcpu=$cpu"
2068 ;;
2069 uc)
2070 subarch="avr32_uc"
2071 cpuflags="-march=$cpu"
2072 ;;
2073 esac
2074
2075 fi
2076
2077 add_cflags $cpuflags
2078 add_asflags $cpuflags
2079
2080 # compiler sanity check
2081 check_exec <<EOF
2082 int main(void){ return 0; }
2083 EOF
2084 if test "$?" != 0; then
2085 echo "$cc is unable to create an executable file."
2086 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2087 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2088 echo "Only do this if you know what cross compiling means."
2089 fi
2090 die "C compiler test failed."
2091 fi
2092
2093 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2094 check_cflags -std=c99
2095 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2096 #include <stdlib.h>
2097 EOF
2098 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2099 #include <stdlib.h>
2100 EOF
2101
2102 check_host_cflags -std=c99
2103
2104 case "$arch" in
2105 alpha|ia64|mips|parisc|sparc)
2106 spic=$shared
2107 ;;
2108 x86)
2109 subarch="x86_32"
2110 check_cc <<EOF && subarch="x86_64"
2111 int test[(int)sizeof(char*) - 7];
2112 EOF
2113 if test "$subarch" = "x86_64"; then
2114 spic=$shared
2115 fi
2116 ;;
2117 esac
2118
2119 enable $subarch
2120 enabled spic && enable pic
2121 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2122
2123 # OS specific
2124 case $target_os in
2125 beos|haiku|zeta)
2126 prefix_default="$HOME/config"
2127 # 3 gcc releases known for BeOS, each with ugly bugs
2128 gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
2129 case "$gcc_version" in
2130 2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
2131 disable mmx
2132 ;;
2133 *20010315*) echo "BeBits gcc"
2134 add_cflags -fno-expensive-optimizations
2135 ;;
2136 esac
2137 SHFLAGS=-nostart
2138 # enable BeOS things
2139 enable audio_beos
2140 # no need for libm, but the inet stuff
2141 # Check for BONE
2142 # XXX: actually should check for NOT net_server
2143 if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
2144 network_extralibs="-lbind -lsocket"
2145 else
2146 enable beos_netserver
2147 network_extralibs="-lnet"
2148 fi ;;
2149 sunos)
2150 FFSERVERLDFLAGS=""
2151 SHFLAGS='-shared -Wl,-h,$$(@F)'
2152 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2153 network_extralibs="-lsocket -lnsl"
2154 add_cppflags -D__EXTENSIONS__
2155 nm_opts='-P -g'
2156 ;;
2157 netbsd)
2158 oss_indev_extralibs="-lossaudio"
2159 oss_outdev_extralibs="-lossaudio"
2160 add_cppflags -D_XOPEN_SOURCE=600
2161 ;;
2162 openbsd)
2163 enable malloc_aligned
2164 # On OpenBSD 4.5. the compiler does not use PIC unless
2165 # explicitly using -fPIC. FFmpeg builds fine without PIC,
2166 # however the generated executable will not do anything
2167 # (simply quits with exit-code 1, no crash, no output).
2168 # Thus explicitly enable PIC here.
2169 enable pic
2170 SHFLAGS='-shared'
2171 oss_indev_extralibs="-lossaudio"
2172 oss_outdev_extralibs="-lossaudio"
2173 ;;
2174 freebsd|dragonfly)
2175 enable malloc_aligned
2176 ;;
2177 bsd/os)
2178 osextralibs="-lpoll -lgnugetopt"
2179 strip="strip -d"
2180 ;;
2181 darwin)
2182 enable malloc_aligned
2183 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2184 strip="strip -x"
2185 FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
2186 SLIBSUF=".dylib"
2187 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2188 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2189 FFSERVERLDFLAGS=-Wl,-bind_at_load
2190 objformat="macho"
2191 enabled x86_64 && objformat="macho64"
2192 enabled_any pic shared ||
2193 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2194 ;;
2195 mingw32*)
2196 if test $target_os = "mingw32ce"; then
2197 disable network
2198 else
2199 target_os=mingw32
2200 fi
2201 LIBTARGET=i386
2202 if enabled x86_64; then
2203 enable malloc_aligned
2204 LIBTARGET=x64
2205 elif enabled arm; then
2206 LIBTARGET=arm
2207 fi
2208 shlibdir_default="$bindir_default"
2209 disable ffserver
2210 SLIBPREF=""
2211 SLIBSUF=".dll"
2212 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2213 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2214 SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2215 SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2216 install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2217 install -d "$(LIBDIR)"; \
2218 install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2219 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2220 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2221 objformat="win32"
2222 enable dos_paths
2223 check_cflags -fno-common
2224 if ! enabled x86_64; then
2225 check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2226 die "ERROR: MinGW runtime version must be >= 3.15."
2227 enabled_any avisynth vfwcap_indev &&
2228 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
2229 die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
2230 fi
2231 ;;
2232 cygwin*)
2233 target_os=cygwin
2234 shlibdir_default="$bindir_default"
2235 SLIBPREF="cyg"
2236 SLIBSUF=".dll"
2237 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2238 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2239 SHFLAGS='-shared -Wl,--enable-auto-image-base'
2240 objformat="win32"
2241 enable dos_paths
2242 check_cflags -fno-common
2243 ;;
2244 *-dos|freedos|opendos)
2245 disable ffplay ffserver
2246 disable $INDEV_LIST $OUTDEV_LIST
2247 network_extralibs="-lsocket"
2248 objformat="coff"
2249 enable dos_paths
2250 ;;
2251 linux)
2252 enable dv1394
2253 ;;
2254 irix*)
2255 target_os=irix
2256 ranlib="echo ignoring ranlib"
2257 ;;
2258 os/2*)
2259 strip="lxlite"
2260 ln_s="cp -f"
2261 FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
2262 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2263 FFSERVERLDFLAGS=""
2264 LIBSUF="_s.a"
2265 SLIBPREF=""
2266 SLIBSUF=".dll"
2267 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2268 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2269 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2270 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2271 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2272 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2273 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2274 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2275 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2276 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2277 SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2278 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2279 enable dos_paths
2280 ;;
2281 gnu/kfreebsd)
2282 ;;
2283 gnu)
2284 ;;
2285 none)
2286 ;;
2287 *)
2288 die "Unknown OS '$target_os'."
2289 ;;
2290 esac
2291
2292 set_default $PATHS_LIST
2293
2294 add_extralibs $osextralibs
2295
2296 # Combine FFLDFLAGS and the LDFLAGS environment variable.
2297 LDFLAGS="$FFLDFLAGS $LDFLAGS"
2298
2299 # we need to build at least one lib type
2300 if ! enabled_any static shared; then
2301 cat <<EOF
2302 At least one library type must be built.
2303 Specify --enable-static to build the static libraries or --enable-shared to
2304 build the shared libraries as well. To only build the shared libraries specify
2305 --disable-static in addition to --enable-shared.
2306 EOF
2307 exit 1;
2308 fi
2309
2310 disabled static && LIBNAME=""
2311
2312 if enabled_any libfaad libfaadbin ; then
2313 if check_header faad.h; then
2314 check_cc <<EOF
2315 #include <faad.h>
2316 #ifndef FAAD2_VERSION
2317 ok faad1
2318 #endif
2319 int main(void) { return 0; }
2320 EOF
2321 test $? = 0 && enable libfaad2
2322 else
2323 die "FAAD test failed."
2324 fi
2325 fi
2326
2327
2328 die_license_disabled() {
2329 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2330 }
2331
2332 die_license_disabled gpl libfaad2
2333 die_license_disabled gpl libx264
2334 die_license_disabled gpl libxvid
2335 die_license_disabled gpl postproc
2336 die_license_disabled gpl x11grab
2337
2338 die_license_disabled nonfree libfaac
2339
2340 die_license_disabled version3 libopencore_amrnb
2341 die_license_disabled version3 libopencore_amrwb
2342
2343 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2344
2345 check_deps $ARCH_EXT_LIST
2346
2347 disabled optimizations || check_cflags -fomit-frame-pointer
2348
2349 enable_pic() {
2350 enable pic
2351 add_cppflags -DPIC
2352 add_cflags -fPIC
2353 add_asflags -fPIC
2354 }
2355
2356 enabled pic && enable_pic
2357
2358 check_cc <<EOF || die "Symbol mangling check failed."
2359 int ff_extern;
2360 EOF
2361 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2362 extern_prefix=${sym%%ff_extern*}
2363
2364 check_cc <<EOF && enable inline_asm
2365 void foo(void) { __asm__ volatile ("" ::); }
2366 EOF
2367
2368 _restrict=
2369 for restrict_keyword in restrict __restrict__ __restrict; do
2370 check_cc <<EOF && _restrict=$restrict_keyword && break
2371 void foo(char * $restrict_keyword p);
2372 EOF
2373 done
2374
2375 check_cc <<EOF && enable attribute_packed
2376 struct { int x; } __attribute__((packed)) x;
2377 EOF
2378
2379 check_cc <<EOF && enable attribute_may_alias
2380 union { int x; } __attribute__((may_alias)) x;
2381 EOF
2382
2383 check_cc <<EOF || die "endian test failed"
2384 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2385 EOF
2386 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2387
2388 if enabled alpha; then
2389
2390 check_cflags -mieee
2391
2392 elif enabled arm; then
2393
2394 check_cflags -marm
2395
2396 check_ld <<EOF && enable vfp_args
2397 __asm__ (".eabi_attribute 28, 1");
2398 int main(void) { return 0; }
2399 EOF
2400
2401 # We have to check if pld is a nop and disable it.
2402 check_asm pld '"pld [r0]"'
2403
2404 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2405 enabled armv6 && check_asm armv6 '"sadd16 r0, r0, r0"'
2406 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2407 enabled armvfp && check_asm armvfp '"fadds s0, s0, s0"'
2408 enabled iwmmxt && check_asm iwmmxt '"wunpckelub wr6, wr4"'
2409 enabled neon && check_asm neon '"vadd.i16 q0, q0, q0"'
2410
2411 enabled_all armv6t2 shared !pic && enable_pic
2412
2413 elif enabled ia64; then
2414
2415 # HACK: currently fails to build if .bss is > 4MB and shared libs are built
2416 enabled shared && enable_weak hardcoded_tables
2417
2418 elif enabled mips; then
2419
2420 check_asm loongson '"dmult.g $1, $2, $3"'
2421 enabled mmi && check_asm mmi '"lq $2, 0($2)"'
2422
2423 elif enabled ppc; then
2424
2425 enable local_aligned_8 local_aligned_16
2426
2427 check_asm dcbzl '"dcbzl 0, 1"'
2428 check_asm ppc4xx '"maclhw r10, r11, r12"'
2429 check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2430
2431 # AltiVec flags: The FSF version of GCC differs from the Apple version
2432 if enabled altivec; then
2433 check_cflags -maltivec -mabi=altivec &&
2434 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2435 check_cflags -faltivec
2436
2437 # check if our compiler supports Motorola AltiVec C API
2438 check_cc <<EOF || disable altivec
2439 $inc_altivec_h
2440 int main(void) {
2441 vector signed int v1, v2, v3;
2442 v1 = vec_add(v2,v3);
2443 return 0;
2444 }
2445 EOF
2446
2447 # check if our compiler supports braces for vector declarations
2448 check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2449 $inc_altivec_h
2450 int main (void) { (vector int) {1}; return 0; }
2451 EOF
2452 fi
2453
2454 elif enabled sparc; then
2455
2456 enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2457 add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2458
2459 elif enabled x86; then
2460
2461 enable local_aligned_8 local_aligned_16
2462
2463 # check whether EBP is available on x86
2464 # As 'i' is stored on the stack, this program will crash
2465 # if the base pointer is used to access it because the
2466 # base pointer is cleared in the inline assembly code.
2467 check_exec_crash <<EOF && enable ebp_available
2468 volatile int i=0;
2469 __asm__ volatile (
2470 "xorl %%ebp, %%ebp"
2471 ::: "%ebp");
2472 return i;
2473 EOF
2474
2475 # check whether EBX is available on x86
2476 check_asm ebx_available '""::"b"(0)' &&
2477 check_asm ebx_available '"":::"%ebx"'
2478
2479 # check whether more than 10 operands are supported
2480 check_cc <<EOF && enable ten_operands
2481 int main(void) {
2482 int x=0;
2483 __asm__ volatile(
2484 ""
2485 :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2486 );
2487 return 0;
2488 }
2489 EOF
2490
2491 # check whether binutils is new enough to compile SSSE3/MMX2
2492 enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2493 enabled mmx2 && check_asm mmx2 '"pmaxub %mm0, %mm1"'
2494
2495 check_asm bswap '"bswap %%eax" ::: "%eax"'
2496
2497 YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2498 enabled x86_64 && append YASMFLAGS "-m amd64"
2499 enabled pic && append YASMFLAGS "-DPIC"
2500 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
2501 case "$objformat" in
2502 elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2503 esac
2504 disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
2505
2506 case "$cpu" in
2507 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2508 disable fast_clz
2509 ;;
2510 esac
2511
2512 fi
2513
2514 if check_func dlopen; then
2515 ldl=
2516 elif check_func dlopen -ldl; then
2517 ldl=-ldl
2518 fi
2519
2520 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2521 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2522
2523 check_func fork
2524 check_func getaddrinfo $network_extralibs
2525 check_func gethrtime
2526 check_func getrusage
2527 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2528 check_func inet_aton $network_extralibs
2529 check_func isatty
2530 check_func ${malloc_prefix}memalign && enable memalign
2531 check_func mkstemp
2532 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
2533 check_func setrlimit
2534 check_func_headers io.h setmode
2535 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2536 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2537 check_func_headers windows.h GetProcessTimes
2538 check_func_headers windows.h VirtualAlloc
2539
2540 check_header conio.h
2541 check_header dlfcn.h
2542 check_header dxva2api.h
2543 check_header malloc.h
2544 check_header poll.h
2545 check_header sys/mman.h
2546 check_header sys/resource.h
2547 check_header sys/select.h
2548 check_header termios.h
2549 check_header vdpau/vdpau.h
2550 check_header vdpau/vdpau_x11.h
2551 check_header X11/extensions/XvMClib.h
2552
2553 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2554
2555 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2556 enabled_any $need_memalign ; then
2557 die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2558 fi
2559
2560 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
2561 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2562
2563 # check for some common methods of building with pthread support
2564 # do this before the optional library checks as some of them require pthreads
2565 if enabled pthreads; then
2566 if check_func pthread_create; then
2567 :
2568 elif check_func pthread_create -pthread; then
2569 add_cflags -pthread
2570 add_extralibs -pthread
2571 elif check_func pthread_create -pthreads; then
2572 add_cflags -pthreads
2573 add_extralibs -pthreads
2574 elif check_func pthread_create -lpthreadGC2; then
2575 add_extralibs -lpthreadGC2
2576 elif ! check_lib pthread.h pthread_create -lpthread; then
2577 die "ERROR: can't find pthreads library"
2578 fi
2579 fi
2580
2581 for thread in $THREADS_LIST; do
2582 if enabled $thread; then
2583 test -n "$thread_type" &&
2584 die "ERROR: Only one thread type must be selected." ||
2585 thread_type="$thread"
2586 fi
2587 done
2588
2589 check_lib math.h sin -lm
2590 check_lib va/va.h vaInitialize -lva
2591
2592 check_mathfunc exp2
2593 check_mathfunc exp2f
2594 check_mathfunc llrint
2595 check_mathfunc log2
2596 check_mathfunc log2f
2597 check_mathfunc lrint
2598 check_mathfunc lrintf
2599 check_mathfunc round
2600 check_mathfunc roundf
2601 check_mathfunc truncf
2602
2603 # these are off by default, so fail if requested and not available
2604 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2605 enabled libdirac && add_cflags $(pkg-config --cflags dirac) &&
2606 require libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2607 require libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2608 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2609 enabled libfaad && require2 libfaad faad.h faacDecOpen -lfaad
2610 enabled libgsm && require libgsm gsm/gsm.h gsm_create -lgsm
2611 enabled libmp3lame && require libmp3lame lame/lame.h lame_init -lmp3lame -lm
2612 enabled libnut && require libnut libnut.h nut_demuxer_init -lnut
2613 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2614 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2615 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2616 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2617 require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2618 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
2619 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2620 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2621 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 -lm &&
2622 { check_cpp_condition x264.h "X264_BUILD >= 83" ||
2623 die "ERROR: libx264 version must be >= 0.83."; }
2624 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
2625 enabled mlib && require mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2626
2627 # libdc1394 check
2628 if enabled libdc1394; then
2629 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2630 enable libdc1394_2; } ||
2631 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2632 enable libdc1394_1; } ||
2633 die "ERROR: No version of libdc1394 found "
2634 fi
2635
2636 SDL_CONFIG="${cross_prefix}sdl-config"
2637 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2638 sdl_cflags=$("${SDL_CONFIG}" --cflags)
2639 sdl_libs=$("${SDL_CONFIG}" --libs)
2640 check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2641 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2642 enable sdl &&
2643 check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2644 fi
2645
2646 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2647
2648 if enabled network; then
2649 check_type "sys/types.h sys/socket.h" socklen_t
2650 check_type netdb.h "struct addrinfo"
2651 check_type netinet/in.h "struct ipv6_mreq"
2652 check_type netinet/in.h "struct sockaddr_in6"
2653 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2654 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2655 # Prefer arpa/inet.h over winsock2
2656 if check_header arpa/inet.h ; then
2657 check_func closesocket
2658 elif check_header winsock2.h ; then
2659 check_func_headers winsock2.h closesocket -lws2 && \
2660 network_extralibs="-lws2" || \
2661 { check_func_headers winsock2.h closesocket -lws2_32 && \
2662 network_extralibs="-lws2_32"; }
2663 check_type ws2tcpip.h socklen_t
2664 check_type ws2tcpip.h "struct addrinfo"
2665 check_type ws2tcpip.h "struct ipv6_mreq"
2666 check_type ws2tcpip.h "struct sockaddr_in6"
2667 check_type ws2tcpip.h "struct sockaddr_storage"
2668 check_struct winsock2.h "struct sockaddr" sa_len
2669 else
2670 disable network
2671 fi
2672 fi
2673
2674 check_header linux/videodev.h
2675 check_header linux/videodev2.h
2676 check_header sys/videoio.h
2677
2678 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2679
2680 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2681 { check_header dev/bktr/ioctl_meteor.h &&
2682 check_header dev/bktr/ioctl_bt848.h; } ||
2683 { check_header machine/ioctl_meteor.h &&
2684 check_header machine/ioctl_bt848.h; } ||
2685 { check_header dev/video/meteor/ioctl_meteor.h &&
2686 check_header dev/video/bktr/ioctl_bt848.h; } ||
2687 check_header dev/ic/bt8xx.h
2688
2689 check_header sys/soundcard.h
2690 check_header soundcard.h
2691
2692 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2693
2694 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2695
2696 enabled x11grab &&
2697 check_header X11/Xlib.h &&
2698 check_header X11/extensions/XShm.h &&
2699 check_header X11/extensions/Xfixes.h &&
2700 check_func XOpenDisplay -lX11 &&
2701 check_func XShmCreateImage -lX11 -lXext &&
2702 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2703
2704 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2705 check_cpp_condition \
2706 vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2707 { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2708 disable vdpau; }
2709 fi
2710
2711 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2712
2713 # add some useful compiler flags if supported
2714 check_cflags -Wdeclaration-after-statement
2715 check_cflags -Wall
2716 check_cflags -Wno-switch
2717 check_cflags -Wdisabled-optimization
2718 check_cflags -Wpointer-arith
2719 check_cflags -Wredundant-decls
2720 check_cflags -Wno-pointer-sign
2721 check_cflags -Wcast-qual
2722 check_cflags -Wwrite-strings
2723 check_cflags -Wtype-limits
2724 check_cflags -Wundef
2725 check_cflags -Wmissing-prototypes
2726 enabled extra_warnings && check_cflags -Winline
2727
2728 # add some linker flags
2729 check_ldflags -Wl,--warn-common
2730 check_ldflags -Wl,--as-needed
2731 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'
2732 check_ldflags -Wl,-Bsymbolic
2733
2734 echo "X{};" > $TMPV
2735 test_ldflags -Wl,--version-script,$TMPV &&
2736 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2737
2738 if enabled small; then
2739 add_cflags $size_cflags
2740 optimizations="small"
2741 elif enabled optimizations; then
2742 add_cflags $speed_cflags
2743 fi
2744 check_cflags -fno-math-errno
2745 check_cflags -fno-signed-zeros
2746
2747 if enabled icc; then
2748 # Just warnings, no remarks
2749 check_cflags -w1
2750 # -wd: Disable following warnings
2751 # 144, 167, 556: -Wno-pointer-sign
2752 # 10006: ignoring unknown option -fno-signed-zeros
2753 # 10156: ignoring option '-W'; no argument required
2754 check_cflags -wd144,167,556,10006,10156
2755 # 11030: Warning unknown option --as-needed
2756 # 10156: ignoring option '-export'; no argument required
2757 check_ldflags -wd10156,11030
2758 # Allow to compile with optimizations
2759 check_ldflags -march=$cpu
2760 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2761 enable ebp_available
2762 elif enabled ccc; then
2763 # disable some annoying warnings
2764 add_cflags -msg_disable cvtu32to64
2765 add_cflags -msg_disable embedcomment
2766 add_cflags -msg_disable needconstext
2767 add_cflags -msg_disable nomainieee
2768 add_cflags -msg_disable ptrmismatch1
2769 add_cflags -msg_disable unreachcode
2770 elif enabled gcc; then
2771 check_cflags -fno-tree-vectorize
2772 check_cflags -Werror=implicit
2773 check_cflags -Werror=missing-prototypes
2774 elif enabled clang; then
2775 check_cflags -Qunused-arguments
2776 elif enabled armcc; then
2777 # 2523: use of inline assembler is deprecated
2778 add_cflags -Wrvct,--diag_suppress=2523
2779 add_cflags -Wrvct,--diag_suppress=1207
2780 elif enabled tms470; then
2781 add_cflags -pds=824 -pds=837
2782 fi
2783
2784 if enabled gprof; then
2785 add_cflags -p
2786 add_ldflags -p
2787 fi
2788
2789 # Find out if the .align argument is a power of two or not.
2790 check_asm asmalign_pot '".align 3"'
2791
2792 enabled_any $DECODER_LIST && enable decoders
2793 enabled_any $ENCODER_LIST && enable encoders
2794 enabled_any $HWACCEL_LIST && enable hwaccels
2795 enabled_any $BSF_LIST && enable bsfs
2796 enabled_any $DEMUXER_LIST && enable demuxers
2797 enabled_any $MUXER_LIST && enable muxers
2798 enabled_any $FILTER_LIST && enable filters
2799 enabled_any $INDEV_LIST && enable indevs
2800 enabled_any $OUTDEV_LIST && enable outdevs
2801 enabled_any $PROTOCOL_LIST && enable protocols
2802
2803 enabled_any $THREADS_LIST && enable threads
2804
2805 check_deps $CONFIG_LIST \
2806 $CONFIG_EXTRA \
2807 $HAVE_LIST \
2808 $DECODER_LIST \
2809 $ENCODER_LIST \
2810 $HWACCEL_LIST \
2811 $PARSER_LIST \
2812 $BSF_LIST \
2813 $DEMUXER_LIST \
2814 $MUXER_LIST \
2815 $FILTER_LIST \
2816 $INDEV_LIST \
2817 $OUTDEV_LIST \
2818 $PROTOCOL_LIST \
2819
2820 enabled asm || disable $ARCH_LIST $ARCH_EXT_LIST
2821
2822 echo "install prefix $prefix"
2823 echo "source path $source_path"
2824 echo "C compiler $cc"
2825 echo ".align is power-of-two $asmalign_pot"
2826 echo "ARCH $arch ($cpu)"
2827 if test "$build_suffix" != ""; then
2828 echo "build suffix $build_suffix"
2829 fi
2830 if test "$extra_version" != ""; then
2831 echo "version string suffix $extra_version"
2832 fi
2833 echo "big-endian ${bigendian-no}"
2834 echo "runtime cpu detection ${runtime_cpudetect-no}"
2835 if enabled x86; then
2836 echo "yasm ${yasm-no}"
2837 echo "MMX enabled ${mmx-no}"
2838 echo "MMX2 enabled ${mmx2-no}"
2839 echo "3DNow! enabled ${amd3dnow-no}"
2840 echo "3DNow! extended enabled ${amd3dnowext-no}"
2841 echo "SSE enabled ${sse-no}"
2842 echo "SSSE3 enabled ${ssse3-no}"
2843 echo "CMOV enabled ${cmov-no}"
2844 echo "CMOV is fast ${fast_cmov-no}"
2845 echo "EBX available ${ebx_available-no}"
2846 echo "EBP available ${ebp_available-no}"
2847 echo "10 operands supported ${ten_operands-no}"
2848 fi
2849 if enabled arm; then
2850 echo "ARMv5TE enabled ${armv5te-no}"
2851 echo "ARMv6 enabled ${armv6-no}"
2852 echo "ARMv6T2 enabled ${armv6t2-no}"
2853 echo "ARM VFP enabled ${armvfp-no}"
2854 echo "IWMMXT enabled ${iwmmxt-no}"
2855 echo "NEON enabled ${neon-no}"
2856 fi
2857 if enabled mips; then
2858 echo "MMI enabled ${mmi-no}"
2859 fi
2860 if enabled ppc; then
2861 echo "AltiVec enabled ${altivec-no}"
2862 echo "PPC 4xx optimizations ${ppc4xx-no}"
2863 echo "dcbzl available ${dcbzl-no}"
2864 echo "performance report ${powerpc_perf-no}"
2865 fi
2866 if enabled sparc; then
2867 echo "VIS enabled ${vis-no}"
2868 fi
2869 echo "gprof enabled ${gprof-no}"
2870 echo "debug symbols ${debug-no}"
2871 echo "strip symbols ${stripping-no}"
2872 echo "optimizations ${optimizations-no}"
2873 echo "static ${static-no}"
2874 echo "shared ${shared-no}"
2875 echo "postprocessing support ${postproc-no}"
2876 echo "new filter support ${avfilter-no}"
2877 echo "filters using lavformat ${avfilter_lavf-no}"
2878 echo "network support ${network-no}"
2879 echo "threading support ${thread_type-no}"
2880 echo "SDL support ${sdl-no}"
2881 echo "Sun medialib support ${mlib-no}"
2882 echo "AVISynth enabled ${avisynth-no}"
2883 echo "libdc1394 support ${libdc1394-no}"
2884 echo "libdirac enabled ${libdirac-no}"
2885 echo "libfaac enabled ${libfaac-no}"
2886 echo "libfaad enabled ${libfaad-no}"
2887 echo "libfaad dlopened ${libfaadbin-no}"
2888 echo "libgsm enabled ${libgsm-no}"
2889 echo "libmp3lame enabled ${libmp3lame-no}"
2890 echo "libnut enabled ${libnut-no}"
2891 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2892 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2893 echo "libopenjpeg enabled ${libopenjpeg-no}"
2894 echo "libschroedinger enabled ${libschroedinger-no}"
2895 echo "libspeex enabled ${libspeex-no}"
2896 echo "libtheora enabled ${libtheora-no}"
2897 echo "libvorbis enabled ${libvorbis-no}"
2898 echo "libx264 enabled ${libx264-no}"
2899 echo "libxvid enabled ${libxvid-no}"
2900 echo "zlib enabled ${zlib-no}"
2901 echo "bzlib enabled ${bzlib-no}"
2902 echo
2903
2904 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2905 echo "Enabled ${type}s:"
2906 eval list=\$$(toupper $type)_LIST
2907 for part in $list; do
2908 enabled $part && echo ${part%_*}
2909 done | sort | pr -3 -t
2910 echo
2911 done
2912
2913 license="LGPL version 2.1 or later"
2914 if enabled nonfree; then
2915 license="nonfree and unredistributable"
2916 elif enabled gplv3; then
2917 license="GPL version 3 or later"
2918 elif enabled lgplv3; then
2919 license="LGPL version 3 or later"
2920 elif enabled gpl; then
2921 license="GPL version 2 or later"
2922 fi
2923
2924 echo "License: $license"
2925
2926 echo "Creating config.mak and config.h..."
2927
2928 # build tree in object directory if source path is different from current one
2929 if enabled source_path_used; then
2930 DIRS="
2931 doc
2932 libavcodec
2933 libavcodec/$arch
2934 libavdevice
2935 libavfilter
2936 libavformat
2937 libavutil
2938 libavutil/$arch
2939 libpostproc
2940 libswscale
2941 libswscale/$arch
2942 tests
2943 tools
2944 "
2945 FILES="
2946 Makefile
2947 common.mak
2948 subdir.mak
2949 doc/texi2pod.pl
2950 libavcodec/Makefile
2951 libavdevice/Makefile
2952 libavfilter/Makefile
2953 libavformat/Makefile
2954 libavutil/Makefile
2955 libpostproc/Makefile
2956 libswscale/Makefile
2957 "
2958 map 'mkdir -p $v' $DIRS;
2959 map '$ln_s "$source_path/$v" $v' $FILES
2960 fi
2961
2962 enabled stripping || strip="echo skipping strip"
2963
2964 cat > config.mak <<EOF
2965 # Automatically generated by configure - do not modify!
2966 ifndef FFMPEG_CONFIG_MAK
2967 FFMPEG_CONFIG_MAK=1
2968 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
2969 prefix=$prefix
2970 LIBDIR=\$(DESTDIR)$libdir
2971 SHLIBDIR=\$(DESTDIR)$shlibdir
2972 INCDIR=\$(DESTDIR)$incdir
2973 BINDIR=\$(DESTDIR)$bindir
2974 DATADIR=\$(DESTDIR)$datadir
2975 MANDIR=\$(DESTDIR)$mandir
2976 SRC_PATH="$source_path"
2977 SRC_PATH_BARE=$source_path
2978 BUILD_ROOT="$PWD"
2979 ARCH=$arch
2980 CC=$cc
2981 AS=$as
2982 LD=$ld
2983 DEPCC=$dep_cc
2984 YASM=$yasmexe
2985 YASMDEP=$yasmexe
2986 AR=$ar
2987 RANLIB=$ranlib
2988 CP=cp -p
2989 LN_S=$ln_s
2990 STRIP=$strip
2991 CPPFLAGS=$CPPFLAGS
2992 CFLAGS=$CFLAGS
2993 ASFLAGS=$ASFLAGS
2994 CC_O=$CC_O
2995 LDFLAGS=$LDFLAGS
2996 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
2997 SHFLAGS=$SHFLAGS
2998 YASMFLAGS=$YASMFLAGS
2999 BUILDSUF=$build_suffix
3000 FULLNAME=$FULLNAME
3001 LIBPREF=$LIBPREF
3002 LIBSUF=$LIBSUF
3003 LIBNAME=$LIBNAME
3004 SLIBPREF=$SLIBPREF
3005 SLIBSUF=$SLIBSUF
3006 EXESUF=$EXESUF
3007 EXTRA_VERSION=$extra_version
3008 DEPFLAGS=$DEPFLAGS
3009 CCDEP=$CCDEP
3010 ASDEP=$ASDEP
3011 CC_DEPFLAGS=$CC_DEPFLAGS
3012 AS_DEPFLAGS=$AS_DEPFLAGS
3013 HOSTCC=$host_cc
3014 HOSTCFLAGS=$host_cflags
3015 HOSTEXESUF=$HOSTEXESUF
3016 HOSTLDFLAGS=$host_ldflags
3017 HOSTLIBS=$host_libs
3018 TARGET_EXEC=$target_exec
3019 TARGET_PATH=$target_path
3020 SDL_LIBS=$sdl_libs
3021 SDL_CFLAGS=$sdl_cflags
3022 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3023 EXTRALIBS=$extralibs
3024 INSTALL=install
3025 LIBTARGET=${LIBTARGET}
3026 SLIBNAME=${SLIBNAME}
3027 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3028 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3029 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3030 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3031 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3032 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3033 SAMPLES=$samples
3034 EOF
3035
3036 get_version(){
3037 name=$1
3038 file=$source_path/$2
3039 eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3040 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3041 lcname=$(tolower $name)
3042 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3043 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3044 }
3045
3046 get_version LIBSWSCALE libswscale/swscale.h
3047 get_version LIBPOSTPROC libpostproc/postprocess.h
3048 get_version LIBAVCODEC libavcodec/avcodec.h
3049 get_version LIBAVDEVICE libavdevice/avdevice.h
3050 get_version LIBAVFORMAT libavformat/avformat.h
3051 get_version LIBAVUTIL libavutil/avutil.h
3052 get_version LIBAVFILTER libavfilter/avfilter.h
3053
3054 enabled asmalign_pot || align_shift="1 <<"
3055
3056 cat > $TMPH <<EOF
3057 /* Automatically generated by configure - do not modify! */
3058 #ifndef FFMPEG_CONFIG_H
3059 #define FFMPEG_CONFIG_H
3060 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3061 #define FFMPEG_LICENSE "$(c_escape $license)"
3062 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3063 #define CC_TYPE "$cc_type"
3064 #define CC_VERSION $cc_version
3065 #define restrict $_restrict
3066 #define ASMALIGN(ZEROBITS) ".align $align_shift " #ZEROBITS "\\n\\t"
3067 #define EXTERN_PREFIX "${extern_prefix}"
3068 #define EXTERN_ASM ${extern_prefix}
3069 EOF
3070
3071 test -n "$malloc_prefix" &&
3072 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3073
3074 if enabled small || disabled optimizations; then
3075 echo "#undef av_always_inline" >> $TMPH
3076 echo "#define av_always_inline" >> $TMPH
3077 fi
3078
3079 print_config ARCH_ $TMPH config.mak $ARCH_LIST
3080 print_config HAVE_ $TMPH config.mak $HAVE_LIST
3081 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST \
3082 $CONFIG_EXTRA \
3083 $DECODER_LIST \
3084 $ENCODER_LIST \
3085 $HWACCEL_LIST \
3086 $PARSER_LIST \
3087 $BSF_LIST \
3088 $DEMUXER_LIST \
3089 $MUXER_LIST \
3090 $FILTER_LIST \
3091 $PROTOCOL_LIST \
3092 $INDEV_LIST \
3093 $OUTDEV_LIST \
3094
3095 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3096 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3097
3098 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3099 cp_if_changed $TMPH config.h
3100
3101 cat > $TMPH <<EOF
3102 /* Generated by ffconf */
3103 #ifndef AVUTIL_AVCONFIG_H
3104 #define AVUTIL_AVCONFIG_H
3105 EOF
3106
3107 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3108
3109 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3110
3111 cp_if_changed $TMPH libavutil/avconfig.h
3112
3113 # build pkg-config files
3114
3115 pkgconfig_generate(){
3116 name=$1
3117 shortname=${name#lib}${build_suffix}
3118 comment=$2
3119 version=$3
3120 libs=$4
3121 requires=$5
3122 cat <<EOF > $name/$name.pc
3123 prefix=$prefix
3124 exec_prefix=\${prefix}
3125 libdir=$libdir
3126 includedir=$incdir
3127
3128 Name: $name
3129 Description: $comment
3130 Version: $version
3131 Requires: $(enabled shared || echo $requires)
3132 Requires.private: $(enabled shared && echo $requires)
3133 Conflicts:
3134 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3135 Libs.private: $(enabled shared && echo $libs)
3136 Cflags: -I\${includedir}
3137 EOF
3138 cat <<EOF > $name/$name-uninstalled.pc
3139 prefix=
3140 exec_prefix=
3141 libdir=\${pcfiledir}
3142 includedir=${source_path}
3143
3144 Name: $name
3145 Description: $comment
3146 Version: $version
3147 Requires: $requires
3148 Conflicts:
3149 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3150 Cflags: -I\${includedir}
3151 EOF
3152 }
3153
3154 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3155 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3156 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3157 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3158 enabled avfilter &&
3159 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3160 enabled postproc &&
3161 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3162 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"