configure: remove unused flag save/restore functions
[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.log]
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 --disable-avfilter disable video filter support [no]
93 --enable-avfilter-lavf video filters dependent on avformat [no]
94 --disable-pthreads disable pthreads [auto]
95 --enable-w32threads use Win32 threads [no]
96 --enable-x11grab enable X11 grabbing [no]
97 --disable-network disable network support [no]
98 --disable-mpegaudio-hp faster (but less accurate) MPEG audio decoding [no]
99 --enable-gray enable full grayscale support (slower color)
100 --disable-swscale-alpha disable alpha channel support in swscale
101 --disable-fastdiv disable table-based division
102 --enable-small optimize for size instead of speed
103 --disable-aandct disable AAN DCT code
104 --disable-dct disable DCT code
105 --disable-fft disable FFT code
106 --disable-golomb disable Golomb code
107 --disable-lpc disable LPC code
108 --disable-mdct disable MDCT code
109 --disable-rdft disable RDFT code
110 --disable-vaapi disable VAAPI code
111 --disable-vdpau disable VDPAU code
112 --disable-dxva2 disable DXVA2 code
113 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
114 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
115 --enable-memalign-hack emulate memalign, interferes with memory debuggers
116 --disable-everything disable all components listed below
117 --disable-encoder=NAME disable encoder NAME
118 --enable-encoder=NAME enable encoder NAME
119 --disable-encoders disable all encoders
120 --disable-decoder=NAME disable decoder NAME
121 --enable-decoder=NAME enable decoder NAME
122 --disable-decoders disable all decoders
123 --disable-hwaccel=NAME disable hwaccel NAME
124 --enable-hwaccel=NAME enable hwaccel NAME
125 --disable-hwaccels disable all hwaccels
126 --disable-muxer=NAME disable muxer NAME
127 --enable-muxer=NAME enable muxer NAME
128 --disable-muxers disable all muxers
129 --disable-demuxer=NAME disable demuxer NAME
130 --enable-demuxer=NAME enable demuxer NAME
131 --disable-demuxers disable all demuxers
132 --enable-parser=NAME enable parser NAME
133 --disable-parser=NAME disable parser NAME
134 --disable-parsers disable all parsers
135 --enable-bsf=NAME enable bitstream filter NAME
136 --disable-bsf=NAME disable bitstream filter NAME
137 --disable-bsfs disable all bitstream filters
138 --enable-protocol=NAME enable protocol NAME
139 --disable-protocol=NAME disable protocol NAME
140 --disable-protocols disable all protocols
141 --disable-indev=NAME disable input device NAME
142 --disable-outdev=NAME disable output device NAME
143 --disable-indevs disable input devices
144 --disable-outdevs disable output devices
145 --disable-devices disable all devices
146 --enable-filter=NAME enable filter NAME
147 --disable-filter=NAME disable filter NAME
148 --disable-filters disable all filters
149 --list-decoders show all available decoders
150 --list-encoders show all available encoders
151 --list-hwaccels show all available hardware accelerators
152 --list-muxers show all available muxers
153 --list-demuxers show all available demuxers
154 --list-parsers show all available parsers
155 --list-protocols show all available protocols
156 --list-bsfs show all available bitstream filters
157 --list-indevs show all available input devices
158 --list-outdevs show all available output devices
159 --list-filters show all available filters
160
161 External library support:
162 --enable-avisynth enable reading of AVISynth script files [no]
163 --enable-bzlib enable bzlib [autodetect]
164 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
165 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
166 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
167 and libraw1394 [no]
168 --enable-libdirac enable Dirac support via libdirac [no]
169 --enable-libfaac enable FAAC support via libfaac [no]
170 --enable-libgsm enable GSM support via libgsm [no]
171 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
172 --enable-libnut enable NUT (de)muxing via libnut,
173 native (de)muxer exists [no]
174 --enable-libopenjpeg enable JPEG 2000 decoding via OpenJPEG [no]
175 --enable-librtmp enable RTMP[E] support via librtmp [no]
176 --enable-libschroedinger enable Dirac support via libschroedinger [no]
177 --enable-libspeex enable Speex decoding via libspeex [no]
178 --enable-libtheora enable Theora encoding via libtheora [no]
179 --enable-libvorbis enable Vorbis encoding via libvorbis,
180 native implementation exists [no]
181 --enable-libvpx enable VP8 support via libvpx [no]
182 --enable-libx264 enable H.264 encoding via x264 [no]
183 --enable-libxvid enable Xvid encoding via xvidcore,
184 native MPEG-4/Xvid encoder exists [no]
185 --enable-mlib enable Sun medialib [no]
186 --enable-zlib enable zlib [autodetect]
187
188 Advanced options (experts only):
189 --source-path=PATH path to source code [$source_path]
190 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
191 --enable-cross-compile assume a cross-compiler is used
192 --sysroot=PATH root of cross-build tree
193 --sysinclude=PATH location of cross-build system headers
194 --target-os=OS compiler targets OS [$target_os]
195 --target-exec=CMD command to run executables on target
196 --target-path=DIR path to view of build directory on target
197 --nm=NM use nm tool
198 --ar=AR use archive tool AR [$ar_default]
199 --as=AS use assembler AS [$as_default]
200 --cc=CC use C compiler CC [$cc_default]
201 --ld=LD use linker LD
202 --host-cc=HOSTCC use host C compiler HOSTCC
203 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
204 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
205 --host-libs=HLIBS use libs HLIBS when linking for host
206 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
207 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
208 --extra-libs=ELIBS add ELIBS [$ELIBS]
209 --extra-version=STRING version string suffix []
210 --build-suffix=SUFFIX library name suffix []
211 --arch=ARCH select architecture [$arch]
212 --cpu=CPU select the minimum required CPU (affects
213 instruction selection, may crash on older CPUs)
214 --enable-powerpc-perf enable performance report on PPC
215 (requires enabling PMC)
216 --disable-asm disable all assembler optimizations
217 --disable-altivec disable AltiVec optimizations
218 --disable-amd3dnow disable 3DNow! optimizations
219 --disable-amd3dnowext disable 3DNow! extended optimizations
220 --disable-mmx disable MMX optimizations
221 --disable-mmx2 disable MMX2 optimizations
222 --disable-sse disable SSE optimizations
223 --disable-ssse3 disable SSSE3 optimizations
224 --disable-armv5te disable armv5te optimizations
225 --disable-armv6 disable armv6 optimizations
226 --disable-armv6t2 disable armv6t2 optimizations
227 --disable-armvfp disable ARM VFP optimizations
228 --disable-iwmmxt disable iwmmxt optimizations
229 --disable-mmi disable MMI optimizations
230 --disable-neon disable neon optimizations
231 --disable-vis disable VIS optimizations
232 --disable-yasm disable use of yasm assembler
233 --enable-pic build position-independent code
234 --malloc-prefix=PFX prefix malloc and related names with PFX
235 --enable-sram allow use of on-chip SRAM
236
237 Developer options (useful when working on FFmpeg itself):
238 --disable-debug disable debugging symbols
239 --enable-debug=LEVEL set the debug level [$debuglevel]
240 --enable-gprof enable profiling with gprof [$gprof]
241 --disable-optimizations disable compiler optimizations
242 --enable-extra-warnings enable more compiler warnings
243 --disable-stripping disable stripping of executables and shared libraries
244 --samples=PATH location of test samples for FATE
245
246 NOTE: Object files are built at the place where configure is launched.
247 EOF
248 exit 0
249 }
250
251 quotes='""'
252
253 log(){
254 echo "$@" >> $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 warn(){
269 log "WARNING: $*"
270 WARNINGS="${WARNINGS}WARNING: $*\n"
271 }
272
273 die(){
274 echolog "$@"
275 cat <<EOF
276
277 If you think configure made a mistake, make sure you are using the latest
278 version from SVN. If the latest version fails, report the problem to the
279 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
280 EOF
281 if disabled logging; then
282 cat <<EOF
283 Rerun configure with logging enabled (do not use --disable-logging), and
284 include the log this produces with your report.
285 EOF
286 else
287 cat <<EOF
288 Include the log file "$logfile" produced by configure as this will help
289 solving the problem.
290 EOF
291 fi
292 exit 1
293 }
294
295 # Avoid locale weirdness, besides we really just want to translate ASCII.
296 toupper(){
297 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
298 }
299
300 tolower(){
301 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
302 }
303
304 c_escape(){
305 echo "$*" | sed 's/["\\]/\\\0/g'
306 }
307
308 sh_quote(){
309 v=$(echo "$1" | sed "s/'/'\\\\''/g")
310 test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
311 echo "$v"
312 }
313
314 filter(){
315 pat=$1
316 shift
317 for v; do
318 eval "case $v in $pat) echo $v ;; esac"
319 done
320 }
321
322 map(){
323 m=$1
324 shift
325 for v; do eval $m; done
326 }
327
328 set_all(){
329 value=$1
330 shift
331 for var in $*; do
332 eval $var=$value
333 done
334 }
335
336 set_weak(){
337 value=$1
338 shift
339 for var; do
340 eval : \${$var:=$value}
341 done
342 }
343
344 pushvar(){
345 for var in $*; do
346 eval level=\${${var}_level:=0}
347 eval ${var}_${level}="\$$var"
348 eval ${var}_level=$(($level+1))
349 done
350 }
351
352 popvar(){
353 for var in $*; do
354 eval level=\${${var}_level:-0}
355 test $level = 0 && continue
356 eval level=$(($level-1))
357 eval $var="\${${var}_${level}}"
358 eval ${var}_level=$level
359 eval unset ${var}_${level}
360 done
361 }
362
363 enable(){
364 set_all yes $*
365 }
366
367 disable(){
368 set_all no $*
369 }
370
371 enable_weak(){
372 set_weak yes $*
373 }
374
375 disable_weak(){
376 set_weak no $*
377 }
378
379 enable_safe(){
380 for var; do
381 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
382 done
383 }
384
385 disable_safe(){
386 for var; do
387 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
388 done
389 }
390
391 do_enable_deep(){
392 for var; do
393 enabled $var && continue
394 eval sel="\$${var}_select"
395 eval sgs="\$${var}_suggest"
396 pushvar var sgs
397 enable_deep $sel
398 popvar sgs
399 enable_deep_weak $sgs
400 popvar var
401 done
402 }
403
404 enable_deep(){
405 do_enable_deep $*
406 enable $*
407 }
408
409 enable_deep_weak(){
410 do_enable_deep $*
411 enable_weak $*
412 }
413
414 enabled(){
415 test "${1#!}" = "$1" && op== || op=!=
416 eval test "x\$${1#!}" $op "xyes"
417 }
418
419 disabled(){
420 test "${1#!}" = "$1" && op== || op=!=
421 eval test "x\$${1#!}" $op "xno"
422 }
423
424 enabled_all(){
425 for opt; do
426 enabled $opt || return 1
427 done
428 }
429
430 disabled_all(){
431 for opt; do
432 disabled $opt || return 1
433 done
434 }
435
436 enabled_any(){
437 for opt; do
438 enabled $opt && return 0
439 done
440 }
441
442 disabled_any(){
443 for opt; do
444 disabled $opt && return 0
445 done
446 return 1
447 }
448
449 set_default(){
450 for opt; do
451 eval : \${$opt:=\$${opt}_default}
452 done
453 }
454
455 is_in(){
456 value=$1
457 shift
458 for var in $*; do
459 [ $var = $value ] && return 0
460 done
461 return 1
462 }
463
464 check_deps(){
465 for cfg; do
466 cfg="${cfg#!}"
467 enabled ${cfg}_checking && die "Circular dependency for $cfg."
468 disabled ${cfg}_checking && continue
469 enable ${cfg}_checking
470
471 eval dep_all="\$${cfg}_deps"
472 eval dep_any="\$${cfg}_deps_any"
473 eval dep_sel="\$${cfg}_select"
474 eval dep_sgs="\$${cfg}_suggest"
475 eval dep_ifa="\$${cfg}_if"
476 eval dep_ifn="\$${cfg}_if_any"
477
478 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
479 check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
480 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
481
482 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
483 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
484 enabled_all $dep_all || disable $cfg
485 enabled_any $dep_any || disable $cfg
486 disabled_any $dep_sel && disable $cfg
487
488 if enabled $cfg; then
489 eval dep_extralibs="\$${cfg}_extralibs"
490 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
491 enable_deep $dep_sel
492 enable_deep_weak $dep_sgs
493 fi
494
495 disable ${cfg}_checking
496 done
497 }
498
499 print_config(){
500 pfx=$1
501 header=$2
502 makefile=$3
503 shift 3
504 for cfg; do
505 ucname="$(toupper $cfg)"
506 if enabled $cfg; then
507 echo "#define ${pfx}${ucname} 1" >> $header
508 echo "${pfx}${ucname}=yes" >> $makefile
509 else
510 echo "#define ${pfx}${ucname} 0" >> $header
511 echo "!${pfx}${ucname}=yes" >> $makefile
512 fi
513 done
514 }
515
516 append(){
517 var=$1
518 shift
519 eval "$var=\"\$$var $*\""
520 }
521
522 add_cppflags(){
523 append CPPFLAGS $($filter_cppflags "$@")
524 }
525
526 add_cflags(){
527 append CFLAGS $($filter_cflags "$@")
528 }
529
530 add_asflags(){
531 append ASFLAGS $($filter_asflags "$@")
532 }
533
534 add_ldflags(){
535 append LDFLAGS "$@"
536 }
537
538 add_extralibs(){
539 append extralibs "$@"
540 }
541
542 check_cmd(){
543 log "$@"
544 "$@" >> $logfile 2>&1
545 }
546
547 check_cc(){
548 log check_cc "$@"
549 cat > $TMPC
550 log_file $TMPC
551 check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
552 }
553
554 check_cpp(){
555 log check_cpp "$@"
556 cat > $TMPC
557 log_file $TMPC
558 check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
559 }
560
561 check_as(){
562 log check_as "$@"
563 cat > $TMPC
564 log_file $TMPC
565 check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
566 }
567
568 check_asm(){
569 log check_asm "$@"
570 name="$1"
571 code="$2"
572 shift 2
573 disable $name
574 check_as "$@" <<EOF && enable $name
575 void foo(void){ __asm__ volatile($code); }
576 EOF
577 }
578
579 check_yasm(){
580 log check_yasm "$@"
581 echo "$1" > $TMPS
582 log_file $TMPS
583 shift 1
584 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
585 }
586
587 check_ld(){
588 log check_ld "$@"
589 flags=''
590 libs=''
591 for f; do
592 test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
593 done
594 check_cc $($filter_cflags $flags) || return
595 check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
596 }
597
598 check_cppflags(){
599 log check_cppflags "$@"
600 set -- $($filter_cppflags "$@")
601 check_cc "$@" <<EOF && append CPPFLAGS "$@"
602 int x;
603 EOF
604 }
605
606 check_cflags(){
607 log check_cflags "$@"
608 set -- $($filter_cflags "$@")
609 check_cc "$@" <<EOF && append CFLAGS "$@"
610 int x;
611 EOF
612 }
613
614 test_ldflags(){
615 log test_ldflags "$@"
616 check_ld "$@" <<EOF
617 int main(void){ return 0; }
618 EOF
619 }
620
621 check_ldflags(){
622 log check_ldflags "$@"
623 test_ldflags "$@" && add_ldflags "$@"
624 }
625
626 check_header(){
627 log check_header "$@"
628 header=$1
629 shift
630 disable_safe $header
631 check_cpp "$@" <<EOF && enable_safe $header
632 #include <$header>
633 int x;
634 EOF
635 }
636
637 check_func(){
638 log check_func "$@"
639 func=$1
640 shift
641 disable $func
642 check_ld "$@" <<EOF && enable $func
643 extern int $func();
644 int main(void){ $func(); }
645 EOF
646 }
647
648 check_mathfunc(){
649 log check_mathfunc "$@"
650 func=$1
651 shift
652 disable $func
653 check_ld "$@" <<EOF && enable $func
654 #include <math.h>
655 float foo(float f) { return $func(f); }
656 int main(void){ return 0; }
657 EOF
658 }
659
660 check_func_headers(){
661 log check_func_headers "$@"
662 headers=$1
663 func=$2
664 shift 2
665 disable $func
666 incs=""
667 for hdr in $headers; do
668 incs="$incs
669 #include <$hdr>"
670 done
671 check_ld "$@" <<EOF && enable $func && enable_safe $headers
672 $incs
673 int main(int argc, char **argv){
674 return (long) $func;
675 }
676 EOF
677 }
678
679 check_cpp_condition(){
680 log check_cpp_condition "$@"
681 header=$1
682 condition=$2
683 shift 2
684 check_cpp $($filter_cppflags "$@") <<EOF
685 #include <$header>
686 #if !($condition)
687 #error "unsatisfied condition: $condition"
688 #endif
689 EOF
690 }
691
692 check_lib(){
693 log check_lib "$@"
694 header="$1"
695 func="$2"
696 shift 2
697 check_header $header && check_func $func "$@" && add_extralibs "$@"
698 }
699
700 check_lib2(){
701 log check_lib2 "$@"
702 headers="$1"
703 func="$2"
704 shift 2
705 check_func_headers "$headers" $func "$@" && add_extralibs "$@"
706 }
707
708 check_exec(){
709 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
710 }
711
712 check_exec_crash(){
713 code=$(cat)
714
715 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
716 # are safe but may not be available everywhere. Thus we use
717 # raise(SIGTERM) instead. The check is run in a subshell so we
718 # can redirect the "Terminated" message from the shell. SIGBUS
719 # is not defined by standard C so it is used conditionally.
720
721 (check_exec "$@") >> $logfile 2>&1 <<EOF
722 #include <signal.h>
723 static void sighandler(int sig){
724 raise(SIGTERM);
725 }
726 int main(void){
727 signal(SIGILL, sighandler);
728 signal(SIGFPE, sighandler);
729 signal(SIGSEGV, sighandler);
730 #ifdef SIGBUS
731 signal(SIGBUS, sighandler);
732 #endif
733 { $code }
734 }
735 EOF
736 }
737
738 check_type(){
739 log check_type "$@"
740 headers=$1
741 type=$2
742 shift 2
743 disable_safe "$type"
744 incs=""
745 for hdr in $headers; do
746 incs="$incs
747 #include <$hdr>"
748 done
749 check_cc "$@" <<EOF && enable_safe "$type"
750 $incs
751 $type v;
752 EOF
753 }
754
755 check_struct(){
756 log check_type "$@"
757 headers=$1
758 struct=$2
759 member=$3
760 shift 3
761 disable_safe "${struct}_${member}"
762 incs=""
763 for hdr in $headers; do
764 incs="$incs
765 #include <$hdr>"
766 done
767 check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
768 $incs
769 const void *p = &(($struct *)0)->$member;
770 EOF
771 }
772
773 require(){
774 name="$1"
775 header="$2"
776 func="$3"
777 shift 3
778 check_lib $header $func "$@" || die "ERROR: $name not found"
779 }
780
781 require2(){
782 name="$1"
783 headers="$2"
784 func="$3"
785 shift 3
786 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
787 }
788
789 check_host_cc(){
790 log check_host_cc "$@"
791 cat > $TMPC
792 log_file $TMPC
793 check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
794 }
795
796 check_host_cflags(){
797 log check_host_cflags "$@"
798 check_host_cc "$@" <<EOF && append host_cflags "$@"
799 int x;
800 EOF
801 }
802
803 apply(){
804 file=$1
805 shift
806 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
807 }
808
809 cp_if_changed(){
810 cmp -s "$1" "$2" &&
811 echo "$2 is unchanged" ||
812 cp -f "$1" "$2"
813 }
814
815 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
816 # system-dependent things.
817
818 COMPONENT_LIST="
819 bsfs
820 decoders
821 demuxers
822 encoders
823 filters
824 hwaccels
825 indevs
826 muxers
827 outdevs
828 parsers
829 protocols
830 "
831
832 CONFIG_LIST="
833 $COMPONENT_LIST
834 aandct
835 avcodec
836 avdevice
837 avfilter
838 avfilter_lavf
839 avformat
840 avisynth
841 bzlib
842 dct
843 doc
844 dwt
845 dxva2
846 fastdiv
847 ffmpeg
848 ffplay
849 ffprobe
850 ffserver
851 fft
852 golomb
853 gpl
854 gprof
855 gray
856 h264dsp
857 hardcoded_tables
858 libdc1394
859 libdirac
860 libfaac
861 libgsm
862 libmp3lame
863 libnut
864 libopencore_amrnb
865 libopencore_amrwb
866 libopenjpeg
867 librtmp
868 libschroedinger
869 libspeex
870 libtheora
871 libvorbis
872 libvpx
873 libx264
874 libxvid
875 lpc
876 lsp
877 mdct
878 memalign_hack
879 mlib
880 mpegaudio_hp
881 network
882 nonfree
883 pic
884 postproc
885 powerpc_perf
886 rdft
887 runtime_cpudetect
888 shared
889 small
890 sram
891 static
892 swscale
893 swscale_alpha
894 vaapi
895 vdpau
896 version3
897 x11grab
898 zlib
899 "
900
901 THREADS_LIST='
902 pthreads
903 w32threads
904 '
905
906 ARCH_LIST='
907 alpha
908 arm
909 avr32
910 avr32_ap
911 avr32_uc
912 bfin
913 ia64
914 m68k
915 mips
916 mips64
917 parisc
918 ppc
919 ppc64
920 s390
921 sh4
922 sparc
923 sparc64
924 tomi
925 x86
926 x86_32
927 x86_64
928 '
929
930 ARCH_EXT_LIST='
931 altivec
932 amd3dnow
933 amd3dnowext
934 armv5te
935 armv6
936 armv6t2
937 armvfp
938 iwmmxt
939 mmi
940 mmx
941 mmx2
942 neon
943 ppc4xx
944 sse
945 ssse3
946 vis
947 '
948
949 HAVE_LIST_PUB='
950 bigendian
951 '
952
953 HAVE_LIST="
954 $ARCH_EXT_LIST
955 $HAVE_LIST_PUB
956 $THREADS_LIST
957 alsa_asoundlib_h
958 altivec_h
959 arpa_inet_h
960 attribute_may_alias
961 attribute_packed
962 bswap
963 closesocket
964 cmov
965 conio_h
966 dcbzl
967 dev_bktr_ioctl_bt848_h
968 dev_bktr_ioctl_meteor_h
969 dev_ic_bt8xx_h
970 dev_video_meteor_ioctl_meteor_h
971 dev_video_bktr_ioctl_bt848_h
972 dlfcn_h
973 dlopen
974 dos_paths
975 ebp_available
976 ebx_available
977 exp2
978 exp2f
979 fast_64bit
980 fast_clz
981 fast_cmov
982 fast_unaligned
983 fork
984 getaddrinfo
985 gethrtime
986 GetProcessMemoryInfo
987 GetProcessTimes
988 getrusage
989 struct_rusage_ru_maxrss
990 inet_aton
991 inline_asm
992 isatty
993 ldbrx
994 libdc1394_1
995 libdc1394_2
996 llrint
997 llrintf
998 local_aligned_16
999 local_aligned_8
1000 log2
1001 log2f
1002 loongson
1003 lrint
1004 lrintf
1005 lzo1x_999_compress
1006 machine_ioctl_bt848_h
1007 machine_ioctl_meteor_h
1008 malloc_h
1009 memalign
1010 mkstemp
1011 pld
1012 posix_memalign
1013 round
1014 roundf
1015 sdl
1016 sdl_video_size
1017 setmode
1018 socklen_t
1019 soundcard_h
1020 poll_h
1021 setrlimit
1022 strerror_r
1023 struct_addrinfo
1024 struct_ipv6_mreq
1025 struct_sockaddr_in6
1026 struct_sockaddr_sa_len
1027 struct_sockaddr_storage
1028 symver
1029 symver_gnu_asm
1030 symver_asm_label
1031 sys_mman_h
1032 sys_resource_h
1033 sys_select_h
1034 sys_soundcard_h
1035 sys_videoio_h
1036 ten_operands
1037 termios_h
1038 threads
1039 truncf
1040 vfp_args
1041 VirtualAlloc
1042 winsock2_h
1043 xform_asm
1044 yasm
1045 "
1046
1047 # options emitted with CONFIG_ prefix but not available on command line
1048 CONFIG_EXTRA="
1049 avutil
1050 gplv3
1051 lgplv3
1052 "
1053
1054 CMDLINE_SELECT="
1055 $ARCH_EXT_LIST
1056 $CONFIG_LIST
1057 $THREADS_LIST
1058 asm
1059 cross_compile
1060 debug
1061 extra_warnings
1062 logging
1063 optimizations
1064 stripping
1065 yasm
1066 "
1067
1068 PATHS_LIST='
1069 bindir
1070 datadir
1071 incdir
1072 libdir
1073 mandir
1074 prefix
1075 shlibdir
1076 '
1077
1078 CMDLINE_SET="
1079 $PATHS_LIST
1080 ar
1081 arch
1082 as
1083 build_suffix
1084 cc
1085 cpu
1086 cross_prefix
1087 dep_cc
1088 extra_version
1089 host_cc
1090 host_cflags
1091 host_ldflags
1092 host_libs
1093 host_os
1094 ld
1095 logfile
1096 malloc_prefix
1097 nm
1098 samples
1099 source_path
1100 strip
1101 sysinclude
1102 sysroot
1103 target_exec
1104 target_os
1105 target_path
1106 "
1107
1108 CMDLINE_APPEND="
1109 extra_cflags
1110 "
1111
1112 # code dependency declarations
1113
1114 # architecture extensions
1115
1116 armv5te_deps="arm"
1117 armv6_deps="arm"
1118 armv6t2_deps="arm"
1119 armvfp_deps="arm"
1120 iwmmxt_deps="arm"
1121 neon_deps="arm"
1122
1123 mmi_deps="mips"
1124
1125 altivec_deps="ppc"
1126 ppc4xx_deps="ppc"
1127
1128 vis_deps="sparc"
1129
1130 x86_64_suggest="cmov fast_cmov"
1131 amd3dnow_deps="mmx"
1132 amd3dnowext_deps="amd3dnow"
1133 mmx_deps="x86"
1134 mmx2_deps="mmx"
1135 sse_deps="mmx"
1136 ssse3_deps="sse"
1137
1138 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1139 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1140 fast_unaligned_if_any="armv6 ppc x86"
1141
1142 need_memalign="altivec neon sse"
1143 inline_asm_deps="!tms470"
1144
1145 symver_if_any="symver_asm_label symver_gnu_asm"
1146
1147 # subsystems
1148 mdct_select="fft"
1149 rdft_select="fft"
1150
1151 # decoders / encoders / hardware accelerators
1152 aac_decoder_select="mdct rdft aac_parser"
1153 aac_encoder_select="mdct"
1154 ac3_decoder_select="mdct ac3_parser"
1155 alac_encoder_select="lpc"
1156 amrnb_decoder_select="lsp"
1157 atrac1_decoder_select="mdct"
1158 atrac3_decoder_select="mdct"
1159 binkaudio_dct_decoder_select="mdct rdft dct"
1160 binkaudio_rdft_decoder_select="mdct rdft"
1161 cavs_decoder_select="golomb"
1162 cook_decoder_select="mdct"
1163 cscd_decoder_suggest="zlib"
1164 dca_decoder_select="mdct"
1165 dnxhd_encoder_select="aandct"
1166 dxa_decoder_select="zlib"
1167 eac3_decoder_select="ac3_decoder"
1168 eamad_decoder_select="aandct"
1169 eatgq_decoder_select="aandct"
1170 eatqi_decoder_select="aandct"
1171 ffv1_decoder_select="golomb"
1172 flac_decoder_select="golomb"
1173 flac_encoder_select="golomb lpc"
1174 flashsv_decoder_select="zlib"
1175 flashsv_encoder_select="zlib"
1176 flv_decoder_select="h263_decoder"
1177 flv_encoder_select="h263_encoder"
1178 h261_encoder_select="aandct"
1179 h263_decoder_select="h263_parser"
1180 h263_encoder_select="aandct"
1181 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1182 h263i_decoder_select="h263_decoder"
1183 h263p_encoder_select="h263_encoder"
1184 h264_decoder_select="golomb h264dsp"
1185 h264_dxva2_hwaccel_deps="dxva2api_h"
1186 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1187 h264_vaapi_hwaccel_select="vaapi"
1188 h264_vdpau_decoder_select="vdpau h264_decoder"
1189 imc_decoder_select="fft mdct"
1190 jpegls_decoder_select="golomb"
1191 jpegls_encoder_select="golomb"
1192 ljpeg_encoder_select="aandct"
1193 loco_decoder_select="golomb"
1194 mjpeg_encoder_select="aandct"
1195 mlp_decoder_select="mlp_parser"
1196 mpeg1video_encoder_select="aandct"
1197 mpeg2video_encoder_select="aandct"
1198 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1199 mpeg4_encoder_select="h263_encoder"
1200 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1201 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1202 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1203 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1204 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1205 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1206 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1207 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1208 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1209 msmpeg4v1_decoder_select="h263_decoder"
1210 msmpeg4v1_encoder_select="h263_encoder"
1211 msmpeg4v2_decoder_select="h263_decoder"
1212 msmpeg4v2_encoder_select="h263_encoder"
1213 msmpeg4v3_decoder_select="h263_decoder"
1214 msmpeg4v3_encoder_select="h263_encoder"
1215 nellymoser_decoder_select="mdct"
1216 nellymoser_encoder_select="mdct"
1217 png_decoder_select="zlib"
1218 png_encoder_select="zlib"
1219 qcelp_decoder_select="lsp"
1220 qdm2_decoder_select="mdct rdft"
1221 ra_144_encoder_select="lpc"
1222 rv10_decoder_select="h263_decoder"
1223 rv10_encoder_select="h263_encoder"
1224 rv20_decoder_select="h263_decoder"
1225 rv20_encoder_select="h263_encoder"
1226 rv30_decoder_select="golomb h264dsp"
1227 rv40_decoder_select="golomb h264dsp"
1228 shorten_decoder_select="golomb"
1229 sipr_decoder_select="lsp"
1230 snow_decoder_select="dwt"
1231 snow_encoder_select="aandct dwt"
1232 sonic_decoder_select="golomb"
1233 sonic_encoder_select="golomb"
1234 sonic_ls_encoder_select="golomb"
1235 svq1_encoder_select="aandct"
1236 svq3_decoder_select="golomb h264dsp"
1237 svq3_decoder_suggest="zlib"
1238 theora_decoder_select="vp3_decoder"
1239 tiff_decoder_suggest="zlib"
1240 tiff_encoder_suggest="zlib"
1241 truehd_decoder_select="mlp_decoder"
1242 tscc_decoder_select="zlib"
1243 twinvq_decoder_select="mdct lsp"
1244 vc1_decoder_select="h263_decoder"
1245 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1246 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1247 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1248 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1249 vorbis_decoder_select="mdct"
1250 vorbis_encoder_select="mdct"
1251 vp6a_decoder_select="vp6_decoder"
1252 vp6f_decoder_select="vp6_decoder"
1253 wmapro_decoder_select="mdct"
1254 wmav1_decoder_select="mdct"
1255 wmav1_encoder_select="mdct"
1256 wmav2_decoder_select="mdct"
1257 wmav2_encoder_select="mdct"
1258 wmavoice_decoder_select="lsp rdft dct"
1259 wmv1_decoder_select="h263_decoder"
1260 wmv1_encoder_select="h263_encoder"
1261 wmv2_decoder_select="h263_decoder"
1262 wmv2_encoder_select="h263_encoder"
1263 wmv3_decoder_select="vc1_decoder"
1264 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1265 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1266 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1267 zlib_decoder_select="zlib"
1268 zlib_encoder_select="zlib"
1269 zmbv_decoder_select="zlib"
1270 zmbv_encoder_select="zlib"
1271
1272 vaapi_deps="va_va_h"
1273 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1274
1275 # parsers
1276 h264_parser_select="golomb h264dsp"
1277
1278 # bitstream_filters
1279 aac_adtstoasc_bsf_select="aac_parser"
1280
1281 # external libraries
1282 libdirac_decoder_deps="libdirac !libschroedinger"
1283 libdirac_encoder_deps="libdirac"
1284 libfaac_encoder_deps="libfaac"
1285 libgsm_decoder_deps="libgsm"
1286 libgsm_encoder_deps="libgsm"
1287 libgsm_ms_decoder_deps="libgsm"
1288 libgsm_ms_encoder_deps="libgsm"
1289 libmp3lame_encoder_deps="libmp3lame"
1290 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1291 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1292 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1293 libopenjpeg_decoder_deps="libopenjpeg"
1294 libschroedinger_decoder_deps="libschroedinger"
1295 libschroedinger_encoder_deps="libschroedinger"
1296 libspeex_decoder_deps="libspeex"
1297 libtheora_encoder_deps="libtheora"
1298 libvorbis_encoder_deps="libvorbis"
1299 libvpx_decoder_deps="libvpx"
1300 libvpx_encoder_deps="libvpx"
1301 libx264_encoder_deps="libx264"
1302 libxvid_encoder_deps="libxvid"
1303
1304 # demuxers / muxers
1305 ac3_demuxer_deps="ac3_parser"
1306 asf_stream_muxer_select="asf_muxer"
1307 avisynth_demuxer_deps="avisynth"
1308 dirac_demuxer_deps="dirac_parser"
1309 eac3_demuxer_select="ac3_parser"
1310 ipod_muxer_select="mov_muxer"
1311 libnut_demuxer_deps="libnut"
1312 libnut_muxer_deps="libnut"
1313 matroska_audio_muxer_select="matroska_muxer"
1314 matroska_demuxer_suggest="zlib bzlib"
1315 mov_demuxer_suggest="zlib"
1316 mp3_demuxer_deps="mpegaudio_parser"
1317 mp4_muxer_select="mov_muxer"
1318 mpegtsraw_demuxer_select="mpegts_demuxer"
1319 mxf_d10_muxer_select="mxf_muxer"
1320 ogg_demuxer_select="golomb"
1321 psp_muxer_select="mov_muxer"
1322 rtsp_demuxer_deps="sdp_demuxer"
1323 rtsp_muxer_deps="sdp_demuxer"
1324 rtsp_muxer_select="rtp_muxer"
1325 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1326 sdp_demuxer_select="asf_demuxer rm_demuxer"
1327 spdif_muxer_select="aac_parser"
1328 tg2_muxer_select="mov_muxer"
1329 tgp_muxer_select="mov_muxer"
1330 w64_demuxer_deps="wav_demuxer"
1331
1332 # indevs / outdevs
1333 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1334 alsa_indev_extralibs="-lasound"
1335 alsa_outdev_deps="alsa_asoundlib_h"
1336 alsa_outdev_extralibs="-lasound"
1337 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1338 dv1394_indev_deps="dv1394 dv_demuxer"
1339 jack_indev_deps="jack_jack_h"
1340 jack_indev_extralibs="-ljack"
1341 libdc1394_indev_deps="libdc1394"
1342 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1343 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1344 v4l_indev_deps="linux_videodev_h"
1345 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1346 vfwcap_indev_deps="capCreateCaptureWindow"
1347 vfwcap_indev_extralibs="-lavicap32"
1348 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1349 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1350
1351 # protocols
1352 gopher_protocol_deps="network"
1353 http_protocol_deps="network"
1354 http_protocol_select="tcp_protocol"
1355 mmst_protocol_deps="network"
1356 rtmp_protocol_select="tcp_protocol"
1357 rtp_protocol_select="udp_protocol"
1358 tcp_protocol_deps="network"
1359 udp_protocol_deps="network"
1360
1361 # filters
1362 movie_filter_deps="avfilter_lavf"
1363 avfilter_lavf_deps="avformat"
1364
1365 # libraries
1366 avdevice_deps="avcodec avformat"
1367 avformat_deps="avcodec"
1368
1369 # programs
1370 ffmpeg_deps="avcodec avformat swscale"
1371 ffmpeg_select="buffer_filter"
1372 ffplay_deps="avcodec avformat swscale sdl"
1373 ffplay_select="rdft"
1374 ffprobe_deps="avcodec avformat"
1375 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1376 ffserver_extralibs='$ldl'
1377
1378 doc_deps="texi2html"
1379
1380 # default parameters
1381
1382 logfile="config.log"
1383
1384 # installation paths
1385 prefix_default="/usr/local"
1386 bindir_default='${prefix}/bin'
1387 datadir_default='${prefix}/share/ffmpeg'
1388 incdir_default='${prefix}/include'
1389 libdir_default='${prefix}/lib'
1390 mandir_default='${prefix}/share/man'
1391 shlibdir_default="$libdir_default"
1392
1393 # toolchain
1394 ar_default="ar"
1395 cc_default="gcc"
1396 cc_version=\"unknown\"
1397 host_cc_default="gcc"
1398 ln_s="ln -sf"
1399 nm_default="nm"
1400 objformat="elf"
1401 ranlib="ranlib"
1402 strip_default="strip"
1403 yasmexe="yasm"
1404
1405 nm_opts='-g'
1406
1407 # machine
1408 arch_default=$(uname -m)
1409 cpu="generic"
1410
1411 # OS
1412 target_os_default=$(tolower $(uname -s))
1413 host_os=$target_os_default
1414
1415 # configurable options
1416 enable avcodec
1417 enable avdevice
1418 enable avfilter
1419 enable avformat
1420 enable avutil
1421 enable asm
1422 enable debug
1423 enable doc
1424 enable fastdiv
1425 enable ffmpeg
1426 enable ffplay
1427 enable ffprobe
1428 enable ffserver
1429 enable mpegaudio_hp
1430 enable network
1431 enable optimizations
1432 enable protocols
1433 enable static
1434 enable stripping
1435 enable swscale
1436 enable swscale_alpha
1437
1438 # build settings
1439 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1440 FFSERVERLDFLAGS=-Wl,-E
1441 LIBPREF="lib"
1442 LIBSUF=".a"
1443 FULLNAME='$(NAME)$(BUILDSUF)'
1444 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1445 SLIBPREF="lib"
1446 SLIBSUF=".so"
1447 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1448 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1449 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1450 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1451
1452 CC_O='-o $@'
1453
1454 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1455 host_libs='-lm'
1456
1457 target_path='$(CURDIR)'
1458
1459 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1460 # full relative path for objects in subdirectories for non-recursive Make.
1461 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1462 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1463
1464 # find source path
1465 source_path="$(dirname "$0")"
1466 enable source_path_used
1467 if test -f configure; then
1468 source_path="$(pwd)"
1469 disable source_path_used
1470 else
1471 source_path="$(cd "$source_path"; pwd)"
1472 echo "$source_path" | grep -q '[[:blank:]]' &&
1473 die "Out of tree builds are impossible with whitespace in source path."
1474 test -e "$source_path/config.h" &&
1475 die "Out of tree builds are impossible with config.h in source dir."
1476 fi
1477
1478 for v in "$@"; do
1479 r=${v#*=}
1480 l=${v%"$r"}
1481 r=$(sh_quote "$r")
1482 FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1483 done
1484
1485 find_things(){
1486 thing=$1
1487 pattern=$2
1488 file=$source_path/$3
1489 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1490 }
1491
1492 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
1493 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
1494 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
1495 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
1496 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
1497 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
1498 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
1499 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
1500 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
1501 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1502 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
1503
1504 for n in $COMPONENT_LIST; do
1505 v=$(toupper ${n%s})_LIST
1506 eval enable \$$v
1507 eval ${n}_if_any="\$$v"
1508 done
1509
1510 enable $ARCH_EXT_LIST
1511
1512 die_unknown(){
1513 echo "Unknown option \"$1\"."
1514 echo "See $0 --help for available options."
1515 exit 1
1516 }
1517
1518 show_list() {
1519 suffix=_$1
1520 shift
1521 echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1522 exit 0
1523 }
1524
1525 for opt do
1526 optval="${opt#*=}"
1527 case "$opt" in
1528 --extra-ldflags=*) add_ldflags $optval
1529 ;;
1530 --extra-libs=*) add_extralibs $optval
1531 ;;
1532 --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1533 ;;
1534 --enable-debug=*) debuglevel="$optval"
1535 ;;
1536 --disable-everything)
1537 map 'eval disable \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1538 ;;
1539 --enable-*=*|--disable-*=*)
1540 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1541 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1542 eval list=\$$(toupper $thing)_LIST
1543 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1544 $action $(filter "$name" $list)
1545 ;;
1546 --enable-?*|--disable-?*)
1547 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1548 if is_in $option $COMPONENT_LIST; then
1549 test $action = disable && action=unset
1550 eval $action \$$(toupper ${option%s})_LIST
1551 elif is_in $option $CMDLINE_SELECT; then
1552 $action $option
1553 else
1554 die_unknown $opt
1555 fi
1556 ;;
1557 --list-*)
1558 NAME="${opt#--list-}"
1559 is_in $NAME $COMPONENT_LIST || die_unknown $opt
1560 NAME=${NAME%s}
1561 eval show_list $NAME \$$(toupper $NAME)_LIST
1562 ;;
1563 --help|-h) show_help
1564 ;;
1565 *)
1566 optname="${opt%%=*}"
1567 optname="${optname#--}"
1568 optname=$(echo "$optname" | sed 's/-/_/g')
1569 if is_in $optname $CMDLINE_SET; then
1570 eval $optname='$optval'
1571 elif is_in $optname $CMDLINE_APPEND; then
1572 append $optname "$optval"
1573 else
1574 die_unknown $opt
1575 fi
1576 ;;
1577 esac
1578 done
1579
1580 disabled logging && logfile=/dev/null
1581
1582 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1583 set >> $logfile
1584
1585 test -n "$cross_prefix" && enable cross_compile
1586
1587 if enabled cross_compile; then
1588 test -n "$arch" && test -n "$target_os" ||
1589 die "Must specify target arch and OS when cross-compiling"
1590 fi
1591
1592 set_default arch target_os
1593
1594 ar_default="${cross_prefix}${ar_default}"
1595 cc_default="${cross_prefix}${cc_default}"
1596 nm_default="${cross_prefix}${nm_default}"
1597 ranlib="${cross_prefix}${ranlib}"
1598 strip_default="${cross_prefix}${strip_default}"
1599
1600 sysinclude_default="${sysroot}/usr/include"
1601
1602 set_default cc nm strip sysinclude
1603 enabled cross_compile || host_cc_default=$cc
1604 set_default host_cc
1605
1606 exesuf() {
1607 case $1 in
1608 mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1609 esac
1610 }
1611
1612 EXESUF=$(exesuf $target_os)
1613 HOSTEXESUF=$(exesuf $host_os)
1614
1615 # set temporary file name
1616 : ${TMPDIR:=$TEMPDIR}
1617 : ${TMPDIR:=$TMP}
1618 : ${TMPDIR:=/tmp}
1619
1620 if ! check_cmd type mktemp; then
1621 # simple replacement for missing mktemp
1622 # NOT SAFE FOR GENERAL USE
1623 mktemp(){
1624 echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1625 }
1626 fi
1627
1628 tmpfile(){
1629 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1630 (set -C; exec > $tmp) 2>/dev/null ||
1631 die "Unable to create temporary file in $TMPDIR."
1632 append TMPFILES $tmp
1633 eval $1=$tmp
1634 }
1635
1636 trap 'rm -f -- $TMPFILES' EXIT
1637 trap exit HUP INT TERM
1638
1639 tmpfile TMPC .c
1640 tmpfile TMPE $EXESUF
1641 tmpfile TMPH .h
1642 tmpfile TMPO .o
1643 tmpfile TMPS .S
1644 tmpfile TMPV .ver
1645 tmpfile TMPSH .sh
1646
1647 unset -f mktemp
1648
1649 # make sure we can execute files in $TMPDIR
1650 cat > $TMPSH 2>> $logfile <<EOF
1651 #! /bin/sh
1652 EOF
1653 chmod +x $TMPSH >> $logfile 2>&1
1654 if ! $TMPSH >> $logfile 2>&1; then
1655 cat <<EOF
1656 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
1657 variable to another directory and make sure that it is not mounted noexec.
1658 EOF
1659 die "Sanity test failed."
1660 fi
1661
1662 filter_cflags=echo
1663 filter_cppflags=echo
1664 filter_asflags=echo
1665
1666 if $cc -v 2>&1 | grep -qi ^gcc; then
1667 cc_type=gcc
1668 cc_version=__VERSION__
1669 if ! $cc -dumpversion | grep -q '^2\.'; then
1670 CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1671 AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1672 fi
1673 speed_cflags='-O3'
1674 size_cflags='-Os'
1675 elif $cc --version 2>/dev/null | grep -q Intel; then
1676 cc_type=icc
1677 cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1678 CC_DEPFLAGS='-MMD'
1679 AS_DEPFLAGS='-MMD'
1680 speed_cflags='-O3'
1681 size_cflags='-Os'
1682 noopt_cflags='-O1'
1683 elif $cc -v 2>&1 | grep -q xlc; then
1684 cc_type=xlc
1685 cc_version="AV_STRINGIFY(__IBMC__)"
1686 speed_cflags='-O5'
1687 size_cflags='-O5 -qcompact'
1688 elif $cc -V 2>/dev/null | grep -q Compaq; then
1689 cc_type=ccc
1690 cc_version="AV_STRINGIFY(__DECC_VER)"
1691 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1692 debuglevel=3
1693 add_ldflags -Wl,-z,now # calls to libots crash without this
1694 speed_cflags='-fast'
1695 size_cflags='-O1'
1696 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1697 test -d "$sysroot" || die "No valid sysroot specified."
1698 cc_type=armcc
1699 cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1700 armcc_conf="$PWD/armcc.conf"
1701 $cc --arm_linux_configure \
1702 --arm_linux_config_file="$armcc_conf" \
1703 --configure_sysroot="$sysroot" \
1704 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1705 die "Error creating armcc configuration file."
1706 cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1707 as_default="${cross_prefix}gcc"
1708 CC_DEPFLAGS='-MMD'
1709 AS_DEPFLAGS='-MMD'
1710 speed_cflags='-O3'
1711 size_cflags='-Os'
1712 elif $cc -version 2>/dev/null | grep -q TMS470; then
1713 cc_type=tms470
1714 cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1715 cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1716 CC_O='-fr=$(@D)'
1717 as_default="${cross_prefix}gcc"
1718 ld_default="${cross_prefix}gcc"
1719 TMPO=$(basename $TMPC .c).o
1720 append TMPFILES $TMPO
1721 add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1722 CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1723 AS_DEPFLAGS='-MMD'
1724 speed_cflags='-O3 -mf=5'
1725 size_cflags='-O3 -mf=2'
1726 filter_cflags=tms470_flags
1727 tms470_flags(){
1728 for flag; do
1729 case $flag in
1730 -march=*|-mcpu=*)
1731 case "${flag#*=}" in
1732 armv7-a|cortex-a*) echo -mv=7a8 ;;
1733 armv7-r|cortex-r*) echo -mv=7r4 ;;
1734 armv7-m|cortex-m*) echo -mv=7m3 ;;
1735 armv6*|arm11*) echo -mv=6 ;;
1736 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1737 echo -mv=5e ;;
1738 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
1739 esac
1740 ;;
1741 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
1742 -mfpu=vfp) echo --float_support=vfpv2 ;;
1743 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
1744 -msoft-float) echo --float_support=vfplib ;;
1745 -O[0-3]|-mf=*) echo $flag ;;
1746 -g) echo -g -mn ;;
1747 -pds=*) echo $flag ;;
1748 esac
1749 done
1750 }
1751 elif $cc -v 2>&1 | grep -q clang; then
1752 cc_type=clang
1753 cc_version=__VERSION__
1754 CC_DEPFLAGS='-MMD'
1755 AS_DEPFLAGS='-MMD'
1756 speed_cflags='-O3'
1757 size_cflags='-Os'
1758 elif $cc -V 2>&1 | grep -q Sun; then
1759 cc_type=suncc
1760 cc_version="AV_STRINGIFY(__SUNPRO_C)"
1761 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1762 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1763 speed_cflags='-O5'
1764 size_cflags='-O5 -xspace'
1765 filter_cflags=suncc_flags
1766 suncc_flags(){
1767 for flag; do
1768 case $flag in
1769 -march=*|-mcpu=*)
1770 case "${flag#*=}" in
1771 native) echo -xtarget=native ;;
1772 v9|niagara) echo -xarch=sparc ;;
1773 ultrasparc) echo -xarch=sparcvis ;;
1774 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
1775 i586|pentium) echo -xchip=pentium ;;
1776 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
1777 pentium3*|c3-2) echo -xtarget=pentium3 ;;
1778 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
1779 pentium4*) echo -xtarget=pentium4 ;;
1780 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
1781 *-sse3) echo -xarch=sse3 ;;
1782 core2) echo -xarch=ssse3 -xchip=core2 ;;
1783 amdfam10|barcelona) echo -xarch=sse4_1 ;;
1784 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
1785 k8|opteron|athlon64|athlon-fx)
1786 echo -xarch=sse2a ;;
1787 athlon*) echo -xarch=pentium_proa ;;
1788 esac
1789 ;;
1790 -std=c99) echo -xc99 ;;
1791 -fomit-frame-pointer) echo -xregs=frameptr ;;
1792 -fPIC) echo -KPIC -xcode=pic32 ;;
1793 -W*,*) echo $flag ;;
1794 -f*-*|-W*) ;;
1795 *) echo $flag ;;
1796 esac
1797 done
1798 }
1799 fi
1800
1801 test -n "$cc_type" && enable $cc_type ||
1802 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1803
1804 : ${as_default:=$cc}
1805 : ${dep_cc_default:=$cc}
1806 : ${ld_default:=$cc}
1807 set_default ar as dep_cc ld
1808
1809 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1810 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1811
1812 add_cflags $extra_cflags
1813 add_asflags $extra_cflags
1814
1815 if test -n "$sysroot"; then
1816 case "$cc_type" in
1817 gcc)
1818 add_cppflags --sysroot="$sysroot"
1819 add_ldflags --sysroot="$sysroot"
1820 ;;
1821 tms470)
1822 add_cppflags -I"$sysinclude"
1823 add_ldflags --sysroot="$sysroot"
1824 ;;
1825 clang)
1826 add_cppflags -isysroot "$sysroot"
1827 add_ldflags -isysroot "$sysroot"
1828 ;;
1829 esac
1830 fi
1831
1832 if test "$cpu" = host; then
1833 enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1834
1835 case "$cc_type" in
1836 gcc)
1837 check_native(){
1838 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1839 sed -n "/$1=/{
1840 s/.*$1=\\([^ ]*\\).*/\\1/
1841 p
1842 q
1843 }" $TMPE
1844 }
1845 cpu=$(check_native -march || check_native -mcpu)
1846 ;;
1847 esac
1848
1849 test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1850 fi
1851
1852 # Deal with common $arch aliases
1853 case "$arch" in
1854 arm*)
1855 arch="arm"
1856 ;;
1857 mips|mipsel|IP*)
1858 arch="mips"
1859 ;;
1860 mips64*)
1861 arch="mips"
1862 subarch="mips64"
1863 ;;
1864 parisc|hppa)
1865 arch="parisc"
1866 ;;
1867 parisc64|hppa64)
1868 arch="parisc"
1869 subarch="parisc64"
1870 ;;
1871 "Power Macintosh"|ppc|powerpc)
1872 arch="ppc"
1873 ;;
1874 ppc64|powerpc64)
1875 arch="ppc"
1876 subarch="ppc64"
1877 ;;
1878 s390|s390x)
1879 arch="s390"
1880 ;;
1881 sh4|sh)
1882 arch="sh4"
1883 ;;
1884 sun4u|sparc64)
1885 arch="sparc"
1886 subarch="sparc64"
1887 ;;
1888 i[3-6]86|i86pc|BePC|x86_64|amd64)
1889 arch="x86"
1890 ;;
1891 esac
1892
1893 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
1894 enable $arch
1895
1896 # Add processor-specific flags
1897 if test "$cpu" = generic; then
1898 : do nothing
1899 elif enabled ppc; then
1900
1901 case $(tolower $cpu) in
1902 601|ppc601|powerpc601)
1903 cpuflags="-mcpu=601"
1904 disable altivec
1905 ;;
1906 603*|ppc603*|powerpc603*)
1907 cpuflags="-mcpu=603"
1908 disable altivec
1909 ;;
1910 604*|ppc604*|powerpc604*)
1911 cpuflags="-mcpu=604"
1912 disable altivec
1913 ;;
1914 g3|75*|ppc75*|powerpc75*)
1915 cpuflags="-mcpu=750 -mpowerpc-gfxopt"
1916 disable altivec
1917 ;;
1918 g4|745*|ppc745*|powerpc745*)
1919 cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
1920 ;;
1921 74*|ppc74*|powerpc74*)
1922 cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
1923 ;;
1924 g5|970|ppc970|powerpc970|power4*)
1925 cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1926 ;;
1927 cell)
1928 cpuflags="-mcpu=cell"
1929 enable ldbrx
1930 ;;
1931 e500v2)
1932 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
1933 disable altivec
1934 ;;
1935 e500)
1936 cpuflags="-mcpu=8540 -mhard-float"
1937 disable altivec
1938 ;;
1939 esac
1940
1941 elif enabled x86; then
1942
1943 case $cpu in
1944 i[345]86|pentium)
1945 cpuflags="-march=$cpu"
1946 disable mmx
1947 ;;
1948 # targets that do NOT support conditional mov (cmov)
1949 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1950 cpuflags="-march=$cpu"
1951 disable cmov
1952 ;;
1953 # targets that do support conditional mov (cmov)
1954 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona)
1955 cpuflags="-march=$cpu"
1956 enable cmov
1957 enable fast_cmov
1958 ;;
1959 # targets that do support conditional mov but on which it's slow
1960 pentium4|pentium4m|prescott|nocona)
1961 cpuflags="-march=$cpu"
1962 enable cmov
1963 disable fast_cmov
1964 ;;
1965 esac
1966
1967 elif enabled sparc; then
1968
1969 case $cpu in
1970 niagara)
1971 cpuflags="-mcpu=$cpu"
1972 disable vis
1973 ;;
1974 sparc64)
1975 cpuflags="-mcpu=v9"
1976 ;;
1977 esac
1978
1979 elif enabled arm; then
1980
1981 case $cpu in
1982 armv*)
1983 cpuflags="-march=$cpu"
1984 ;;
1985 *)
1986 cpuflags="-mcpu=$cpu"
1987 ;;
1988 esac
1989
1990 elif enabled alpha; then
1991
1992 enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
1993
1994 elif enabled bfin; then
1995
1996 cpuflags="-mcpu=$cpu"
1997
1998 elif enabled mips; then
1999
2000 cpuflags="-march=$cpu"
2001
2002 elif enabled avr32; then
2003
2004 case $cpu in
2005 ap7[02]0[0-2])
2006 subarch="avr32_ap"
2007 cpuflags="-mpart=$cpu"
2008 ;;
2009 ap)
2010 subarch="avr32_ap"
2011 cpuflags="-march=$cpu"
2012 ;;
2013 uc3[ab]*)
2014 subarch="avr32_uc"
2015 cpuflags="-mcpu=$cpu"
2016 ;;
2017 uc)
2018 subarch="avr32_uc"
2019 cpuflags="-march=$cpu"
2020 ;;
2021 esac
2022
2023 fi
2024
2025 add_cflags $cpuflags
2026 add_asflags $cpuflags
2027
2028 # compiler sanity check
2029 check_exec <<EOF
2030 int main(void){ return 0; }
2031 EOF
2032 if test "$?" != 0; then
2033 echo "$cc is unable to create an executable file."
2034 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2035 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2036 echo "Only do this if you know what cross compiling means."
2037 fi
2038 die "C compiler test failed."
2039 fi
2040
2041 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2042 check_cflags -std=c99
2043 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2044 #include <stdlib.h>
2045 EOF
2046 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2047 #include <stdlib.h>
2048 EOF
2049
2050 check_host_cflags -std=c99
2051
2052 case "$arch" in
2053 alpha|ia64|mips|parisc|sparc)
2054 spic=$shared
2055 ;;
2056 x86)
2057 subarch="x86_32"
2058 check_cc <<EOF && subarch="x86_64"
2059 int test[(int)sizeof(char*) - 7];
2060 EOF
2061 if test "$subarch" = "x86_64"; then
2062 spic=$shared
2063 fi
2064 ;;
2065 esac
2066
2067 enable $subarch
2068 enabled spic && enable pic
2069
2070 # OS specific
2071 case $target_os in
2072 haiku)
2073 prefix_default="/boot/common"
2074 network_extralibs="-lnetwork"
2075 ;;
2076 sunos)
2077 FFSERVERLDFLAGS=""
2078 SHFLAGS='-shared -Wl,-h,$$(@F)'
2079 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2080 network_extralibs="-lsocket -lnsl"
2081 add_cppflags -D__EXTENSIONS__
2082 nm_opts='-P -g'
2083 ;;
2084 netbsd)
2085 oss_indev_extralibs="-lossaudio"
2086 oss_outdev_extralibs="-lossaudio"
2087 add_cppflags -D_XOPEN_SOURCE=600
2088 ;;
2089 openbsd)
2090 enable malloc_aligned
2091 # On OpenBSD 4.5. the compiler does not use PIC unless
2092 # explicitly using -fPIC. FFmpeg builds fine without PIC,
2093 # however the generated executable will not do anything
2094 # (simply quits with exit-code 1, no crash, no output).
2095 # Thus explicitly enable PIC here.
2096 enable pic
2097 SHFLAGS='-shared'
2098 oss_indev_extralibs="-lossaudio"
2099 oss_outdev_extralibs="-lossaudio"
2100 ;;
2101 freebsd|dragonfly)
2102 enable malloc_aligned
2103 ;;
2104 bsd/os)
2105 osextralibs="-lpoll -lgnugetopt"
2106 strip="strip -d"
2107 ;;
2108 darwin)
2109 enable malloc_aligned
2110 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2111 strip="${strip} -x"
2112 FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
2113 SLIBSUF=".dylib"
2114 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2115 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2116 FFSERVERLDFLAGS=-Wl,-bind_at_load
2117 objformat="macho"
2118 enabled x86_64 && objformat="macho64"
2119 enabled_any pic shared ||
2120 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2121 ;;
2122 mingw32*)
2123 if test $target_os = "mingw32ce"; then
2124 disable network
2125 else
2126 target_os=mingw32
2127 fi
2128 LIBTARGET=i386
2129 if enabled x86_64; then
2130 enable malloc_aligned
2131 LIBTARGET=x64
2132 elif enabled arm; then
2133 LIBTARGET=arm
2134 fi
2135 shlibdir_default="$bindir_default"
2136 disable ffserver
2137 SLIBPREF=""
2138 SLIBSUF=".dll"
2139 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2140 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2141 SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2142 SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2143 install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2144 install -d "$(LIBDIR)"; \
2145 install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2146 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2147 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2148 objformat="win32"
2149 enable dos_paths
2150 check_cflags -fno-common
2151 if ! enabled x86_64; then
2152 check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2153 die "ERROR: MinGW runtime version must be >= 3.15."
2154 enabled_any avisynth vfwcap_indev &&
2155 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
2156 die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
2157 fi
2158 ;;
2159 cygwin*)
2160 target_os=cygwin
2161 shlibdir_default="$bindir_default"
2162 SLIBPREF="cyg"
2163 SLIBSUF=".dll"
2164 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2165 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2166 SHFLAGS='-shared -Wl,--enable-auto-image-base'
2167 objformat="win32"
2168 enable dos_paths
2169 check_cflags -fno-common
2170 ;;
2171 *-dos|freedos|opendos)
2172 disable ffplay ffserver
2173 disable $INDEV_LIST $OUTDEV_LIST
2174 network_extralibs="-lsocket"
2175 objformat="coff"
2176 enable dos_paths
2177 ;;
2178 linux)
2179 enable dv1394
2180 ;;
2181 irix*)
2182 target_os=irix
2183 ranlib="echo ignoring ranlib"
2184 ;;
2185 os/2*)
2186 strip="lxlite"
2187 ln_s="cp -f"
2188 FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
2189 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2190 FFSERVERLDFLAGS=""
2191 LIBSUF="_s.a"
2192 SLIBPREF=""
2193 SLIBSUF=".dll"
2194 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2195 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2196 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2197 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2198 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2199 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2200 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2201 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2202 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2203 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2204 SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2205 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2206 enable dos_paths
2207 ;;
2208 gnu/kfreebsd)
2209 ;;
2210 gnu)
2211 ;;
2212 none)
2213 ;;
2214 *)
2215 die "Unknown OS '$target_os'."
2216 ;;
2217 esac
2218
2219 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2220
2221 set_default $PATHS_LIST
2222
2223 add_extralibs $osextralibs
2224
2225 # Combine FFLDFLAGS and the LDFLAGS environment variable.
2226 LDFLAGS="$FFLDFLAGS $LDFLAGS"
2227
2228 # we need to build at least one lib type
2229 if ! enabled_any static shared; then
2230 cat <<EOF
2231 At least one library type must be built.
2232 Specify --enable-static to build the static libraries or --enable-shared to
2233 build the shared libraries as well. To only build the shared libraries specify
2234 --disable-static in addition to --enable-shared.
2235 EOF
2236 exit 1;
2237 fi
2238
2239 disabled static && LIBNAME=""
2240
2241 die_license_disabled() {
2242 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2243 }
2244
2245 die_license_disabled gpl libx264
2246 die_license_disabled gpl libxvid
2247 die_license_disabled gpl postproc
2248 die_license_disabled gpl x11grab
2249
2250 die_license_disabled nonfree libfaac
2251
2252 die_license_disabled version3 libopencore_amrnb
2253 die_license_disabled version3 libopencore_amrwb
2254
2255 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2256
2257 check_deps $ARCH_EXT_LIST
2258
2259 disabled optimizations || check_cflags -fomit-frame-pointer
2260
2261 enable_pic() {
2262 enable pic
2263 add_cppflags -DPIC
2264 add_cflags -fPIC
2265 add_asflags -fPIC
2266 }
2267
2268 enabled pic && enable_pic
2269
2270 check_cc <<EOF || die "Symbol mangling check failed."
2271 int ff_extern;
2272 EOF
2273 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2274 extern_prefix=${sym%%ff_extern*}
2275
2276 check_cc <<EOF && enable inline_asm
2277 void foo(void) { __asm__ volatile ("" ::); }
2278 EOF
2279
2280 _restrict=
2281 for restrict_keyword in restrict __restrict__ __restrict; do
2282 check_cc <<EOF && _restrict=$restrict_keyword && break
2283 void foo(char * $restrict_keyword p);
2284 EOF
2285 done
2286
2287 check_cc <<EOF && enable attribute_packed
2288 struct { int x; } __attribute__((packed)) x;
2289 EOF
2290
2291 check_cc <<EOF && enable attribute_may_alias
2292 union { int x; } __attribute__((may_alias)) x;
2293 EOF
2294
2295 check_cc <<EOF || die "endian test failed"
2296 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2297 EOF
2298 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2299
2300 if enabled alpha; then
2301
2302 check_cflags -mieee
2303
2304 elif enabled arm; then
2305
2306 check_cflags -marm
2307
2308 check_ld <<EOF && enable vfp_args
2309 __asm__ (".eabi_attribute 28, 1");
2310 int main(void) { return 0; }
2311 EOF
2312
2313 # We have to check if pld is a nop and disable it.
2314 check_asm pld '"pld [r0]"'
2315
2316 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2317 enabled armv6 && check_asm armv6 '"sadd16 r0, r0, r0"'
2318 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2319 enabled armvfp && check_asm armvfp '"fadds s0, s0, s0"'
2320 enabled iwmmxt && check_asm iwmmxt '"wunpckelub wr6, wr4"'
2321 enabled neon && check_asm neon '"vadd.i16 q0, q0, q0"'
2322
2323 enabled_all armv6t2 shared !pic && enable_pic
2324
2325 elif enabled mips; then
2326
2327 check_asm loongson '"dmult.g $1, $2, $3"'
2328 enabled mmi && check_asm mmi '"lq $2, 0($2)"'
2329
2330 elif enabled ppc; then
2331
2332 enable local_aligned_8 local_aligned_16
2333
2334 check_asm dcbzl '"dcbzl 0, 1"'
2335 check_asm ppc4xx '"maclhw r10, r11, r12"'
2336 check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2337
2338 # AltiVec flags: The FSF version of GCC differs from the Apple version
2339 if enabled altivec; then
2340 check_cflags -maltivec -mabi=altivec &&
2341 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2342 check_cflags -faltivec
2343
2344 # check if our compiler supports Motorola AltiVec C API
2345 check_cc <<EOF || disable altivec
2346 $inc_altivec_h
2347 int main(void) {
2348 vector signed int v1, v2, v3;
2349 v1 = vec_add(v2,v3);
2350 return 0;
2351 }
2352 EOF
2353
2354 # check if our compiler supports braces for vector declarations
2355 check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2356 $inc_altivec_h
2357 int main (void) { (vector int) {1}; return 0; }
2358 EOF
2359 fi
2360
2361 elif enabled sparc; then
2362
2363 enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2364 add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2365
2366 elif enabled x86; then
2367
2368 enable local_aligned_8 local_aligned_16
2369
2370 # check whether EBP is available on x86
2371 # As 'i' is stored on the stack, this program will crash
2372 # if the base pointer is used to access it because the
2373 # base pointer is cleared in the inline assembly code.
2374 check_exec_crash <<EOF && enable ebp_available
2375 volatile int i=0;
2376 __asm__ volatile (
2377 "xorl %%ebp, %%ebp"
2378 ::: "%ebp");
2379 return i;
2380 EOF
2381
2382 # check whether EBX is available on x86
2383 check_asm ebx_available '""::"b"(0)' &&
2384 check_asm ebx_available '"":::"%ebx"'
2385
2386 # check whether more than 10 operands are supported
2387 check_cc <<EOF && enable ten_operands
2388 int main(void) {
2389 int x=0;
2390 __asm__ volatile(
2391 ""
2392 :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2393 );
2394 return 0;
2395 }
2396 EOF
2397
2398 # check whether binutils is new enough to compile SSSE3/MMX2
2399 enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2400 enabled mmx2 && check_asm mmx2 '"pmaxub %mm0, %mm1"'
2401
2402 check_asm bswap '"bswap %%eax" ::: "%eax"'
2403
2404 YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2405 enabled x86_64 && append YASMFLAGS "-m amd64"
2406 enabled pic && append YASMFLAGS "-DPIC"
2407 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
2408 case "$objformat" in
2409 elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2410 esac
2411 if ! disabled yasm; then
2412 check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2413 warn "yasm not found, performance will suffer"
2414 fi
2415
2416 case "$cpu" in
2417 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2418 disable fast_clz
2419 ;;
2420 esac
2421
2422 fi
2423
2424 if check_func dlopen; then
2425 ldl=
2426 elif check_func dlopen -ldl; then
2427 ldl=-ldl
2428 fi
2429
2430 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2431 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2432
2433 check_func fork
2434 check_func getaddrinfo $network_extralibs
2435 check_func gethrtime
2436 check_func getrusage
2437 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2438 check_func inet_aton $network_extralibs
2439 check_func isatty
2440 check_func ${malloc_prefix}memalign && enable memalign
2441 check_func mkstemp
2442 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
2443 check_func setrlimit
2444 check_func strerror_r
2445 check_func_headers io.h setmode
2446 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2447 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2448 check_func_headers windows.h GetProcessTimes
2449 check_func_headers windows.h VirtualAlloc
2450
2451 check_header conio.h
2452 check_header dlfcn.h
2453 check_header dxva2api.h
2454 check_header malloc.h
2455 check_header poll.h
2456 check_header sys/mman.h
2457 check_header sys/resource.h
2458 check_header sys/select.h
2459 check_header termios.h
2460 check_header vdpau/vdpau.h
2461 check_header vdpau/vdpau_x11.h
2462 check_header X11/extensions/XvMClib.h
2463
2464 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2465
2466 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2467 enabled_any $need_memalign ; then
2468 die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2469 fi
2470
2471 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
2472 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2473
2474 # check for some common methods of building with pthread support
2475 # do this before the optional library checks as some of them require pthreads
2476 if ! disabled pthreads && ! enabled w32threads; then
2477 enable pthreads
2478 if check_func pthread_create; then
2479 :
2480 elif check_func pthread_create -pthread; then
2481 add_cflags -pthread
2482 add_extralibs -pthread
2483 elif check_func pthread_create -pthreads; then
2484 add_cflags -pthreads
2485 add_extralibs -pthreads
2486 elif check_func pthread_create -lpthreadGC2; then
2487 add_extralibs -lpthreadGC2
2488 elif ! check_lib pthread.h pthread_create -lpthread; then
2489 disable pthreads
2490 fi
2491 fi
2492
2493 for thread in $THREADS_LIST; do
2494 if enabled $thread; then
2495 test -n "$thread_type" &&
2496 die "ERROR: Only one thread type must be selected." ||
2497 thread_type="$thread"
2498 fi
2499 done
2500
2501 check_lib math.h sin -lm
2502 disabled vaapi || check_lib va/va.h vaInitialize -lva
2503
2504 check_mathfunc exp2
2505 check_mathfunc exp2f
2506 check_mathfunc llrint
2507 check_mathfunc llrintf
2508 check_mathfunc log2
2509 check_mathfunc log2f
2510 check_mathfunc lrint
2511 check_mathfunc lrintf
2512 check_mathfunc round
2513 check_mathfunc roundf
2514 check_mathfunc truncf
2515
2516 # these are off by default, so fail if requested and not available
2517 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2518 enabled libdirac && add_cflags $(pkg-config --cflags dirac) &&
2519 require libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2520 require libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2521 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2522 enabled libgsm && require libgsm gsm/gsm.h gsm_create -lgsm
2523 enabled libmp3lame && require libmp3lame lame/lame.h lame_init -lmp3lame -lm
2524 enabled libnut && require libnut libnut.h nut_demuxer_init -lnut
2525 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2526 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2527 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2528 enabled librtmp && require librtmp librtmp/rtmp.h RTMP_Init $(pkg-config --libs librtmp)
2529 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2530 require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2531 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
2532 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2533 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2534 enabled libvpx && require2 libvpx "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_dec_init_ver" -lvpx &&
2535 require2 libvpx "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver" -lvpx
2536 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 -lm &&
2537 { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2538 die "ERROR: libx264 version must be >= 0.98."; }
2539 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
2540 enabled mlib && require mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2541
2542 # libdc1394 check
2543 if enabled libdc1394; then
2544 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2545 enable libdc1394_2; } ||
2546 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2547 enable libdc1394_1; } ||
2548 die "ERROR: No version of libdc1394 found "
2549 fi
2550
2551 SDL_CONFIG="${cross_prefix}sdl-config"
2552 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2553 sdl_cflags=$("${SDL_CONFIG}" --cflags)
2554 sdl_libs=$("${SDL_CONFIG}" --libs)
2555 check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2556 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2557 enable sdl &&
2558 check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2559 fi
2560
2561 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2562
2563 if enabled network; then
2564 check_type "sys/types.h sys/socket.h" socklen_t
2565 check_type netdb.h "struct addrinfo"
2566 check_type netinet/in.h "struct ipv6_mreq"
2567 check_type netinet/in.h "struct sockaddr_in6"
2568 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2569 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2570 # Prefer arpa/inet.h over winsock2
2571 if check_header arpa/inet.h ; then
2572 check_func closesocket
2573 elif check_header winsock2.h ; then
2574 check_func_headers winsock2.h closesocket -lws2 && \
2575 network_extralibs="-lws2" || \
2576 { check_func_headers winsock2.h closesocket -lws2_32 && \
2577 network_extralibs="-lws2_32"; }
2578 check_type ws2tcpip.h socklen_t
2579 check_type ws2tcpip.h "struct addrinfo"
2580 check_type ws2tcpip.h "struct ipv6_mreq"
2581 check_type ws2tcpip.h "struct sockaddr_in6"
2582 check_type ws2tcpip.h "struct sockaddr_storage"
2583 check_struct winsock2.h "struct sockaddr" sa_len
2584 else
2585 disable network
2586 fi
2587 fi
2588
2589 check_header linux/videodev.h
2590 check_header linux/videodev2.h
2591 check_header sys/videoio.h
2592
2593 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2594
2595 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2596 { check_header dev/bktr/ioctl_meteor.h &&
2597 check_header dev/bktr/ioctl_bt848.h; } ||
2598 { check_header machine/ioctl_meteor.h &&
2599 check_header machine/ioctl_bt848.h; } ||
2600 { check_header dev/video/meteor/ioctl_meteor.h &&
2601 check_header dev/video/bktr/ioctl_bt848.h; } ||
2602 check_header dev/ic/bt8xx.h
2603
2604 check_header sys/soundcard.h
2605 check_header soundcard.h
2606
2607 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2608
2609 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2610
2611 enabled x11grab &&
2612 check_header X11/Xlib.h &&
2613 check_header X11/extensions/XShm.h &&
2614 check_header X11/extensions/Xfixes.h &&
2615 check_func XOpenDisplay -lX11 &&
2616 check_func XShmCreateImage -lX11 -lXext &&
2617 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2618
2619 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2620 check_cpp_condition \
2621 vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2622 { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2623 disable vdpau; }
2624 fi
2625
2626 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2627
2628 # add some useful compiler flags if supported
2629 check_cflags -Wdeclaration-after-statement
2630 check_cflags -Wall
2631 check_cflags -Wno-switch
2632 check_cflags -Wdisabled-optimization
2633 check_cflags -Wpointer-arith
2634 check_cflags -Wredundant-decls
2635 check_cflags -Wno-pointer-sign
2636 check_cflags -Wcast-qual
2637 check_cflags -Wwrite-strings
2638 check_cflags -Wtype-limits
2639 check_cflags -Wundef
2640 check_cflags -Wmissing-prototypes
2641 enabled extra_warnings && check_cflags -Winline
2642
2643 # add some linker flags
2644 check_ldflags -Wl,--warn-common
2645 check_ldflags -Wl,--as-needed
2646 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'
2647 check_ldflags -Wl,-Bsymbolic
2648
2649 echo "X{};" > $TMPV
2650 if test_ldflags -Wl,--version-script,$TMPV; then
2651 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2652 check_cc <<EOF && enable symver_asm_label
2653 void ff_foo(void) __asm__ ("av_foo@VERSION");
2654 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2655 EOF
2656 check_cc <<EOF && enable symver_gnu_asm
2657 __asm__(".symver ff_foo,av_foo@VERSION");
2658 void ff_foo(void) {}
2659 EOF
2660 fi
2661
2662 if enabled small; then
2663 add_cflags $size_cflags
2664 optimizations="small"
2665 elif enabled optimizations; then
2666 add_cflags $speed_cflags
2667 else
2668 add_cflags $noopt_cflags
2669 fi
2670 check_cflags -fno-math-errno
2671 check_cflags -fno-signed-zeros
2672
2673 if enabled icc; then
2674 # Just warnings, no remarks
2675 check_cflags -w1
2676 # -wd: Disable following warnings
2677 # 144, 167, 556: -Wno-pointer-sign
2678 # 10006: ignoring unknown option -fno-signed-zeros
2679 # 10156: ignoring option '-W'; no argument required
2680 check_cflags -wd144,167,556,10006,10156
2681 # 11030: Warning unknown option --as-needed
2682 # 10156: ignoring option '-export'; no argument required
2683 check_ldflags -wd10156,11030
2684 # Allow to compile with optimizations
2685 check_ldflags -march=$cpu
2686 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2687 enable ebp_available
2688 elif enabled ccc; then
2689 # disable some annoying warnings
2690 add_cflags -msg_disable cvtu32to64
2691 add_cflags -msg_disable embedcomment
2692 add_cflags -msg_disable needconstext
2693 add_cflags -msg_disable nomainieee
2694 add_cflags -msg_disable ptrmismatch1
2695 add_cflags -msg_disable unreachcode
2696 elif enabled gcc; then
2697 check_cflags -fno-tree-vectorize
2698 check_cflags -Werror=implicit
2699 check_cflags -Werror=missing-prototypes
2700 elif enabled clang; then
2701 check_cflags -Qunused-arguments
2702 elif enabled armcc; then
2703 # 2523: use of inline assembler is deprecated
2704 add_cflags -Wrvct,--diag_suppress=2523
2705 add_cflags -Wrvct,--diag_suppress=1207
2706 elif enabled tms470; then
2707 add_cflags -pds=824 -pds=837
2708 fi
2709
2710 if enabled gprof; then
2711 add_cflags -p
2712 add_ldflags -p
2713 fi
2714
2715 enabled_any $THREADS_LIST && enable threads
2716
2717 check_deps $CONFIG_LIST \
2718 $CONFIG_EXTRA \
2719 $HAVE_LIST \
2720 $DECODER_LIST \
2721 $ENCODER_LIST \
2722 $HWACCEL_LIST \
2723 $PARSER_LIST \
2724 $BSF_LIST \
2725 $DEMUXER_LIST \
2726 $MUXER_LIST \
2727 $FILTER_LIST \
2728 $INDEV_LIST \
2729 $OUTDEV_LIST \
2730 $PROTOCOL_LIST \
2731
2732 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2733
2734 echo "install prefix $prefix"
2735 echo "source path $source_path"
2736 echo "C compiler $cc"
2737 echo "ARCH $arch ($cpu)"
2738 if test "$build_suffix" != ""; then
2739 echo "build suffix $build_suffix"
2740 fi
2741 if test "$extra_version" != ""; then
2742 echo "version string suffix $extra_version"
2743 fi
2744 echo "big-endian ${bigendian-no}"
2745 echo "runtime cpu detection ${runtime_cpudetect-no}"
2746 if enabled x86; then
2747 echo "yasm ${yasm-no}"
2748 echo "MMX enabled ${mmx-no}"
2749 echo "MMX2 enabled ${mmx2-no}"
2750 echo "3DNow! enabled ${amd3dnow-no}"
2751 echo "3DNow! extended enabled ${amd3dnowext-no}"
2752 echo "SSE enabled ${sse-no}"
2753 echo "SSSE3 enabled ${ssse3-no}"
2754 echo "CMOV enabled ${cmov-no}"
2755 echo "CMOV is fast ${fast_cmov-no}"
2756 echo "EBX available ${ebx_available-no}"
2757 echo "EBP available ${ebp_available-no}"
2758 echo "10 operands supported ${ten_operands-no}"
2759 fi
2760 if enabled arm; then
2761 echo "ARMv5TE enabled ${armv5te-no}"
2762 echo "ARMv6 enabled ${armv6-no}"
2763 echo "ARMv6T2 enabled ${armv6t2-no}"
2764 echo "ARM VFP enabled ${armvfp-no}"
2765 echo "IWMMXT enabled ${iwmmxt-no}"
2766 echo "NEON enabled ${neon-no}"
2767 fi
2768 if enabled mips; then
2769 echo "MMI enabled ${mmi-no}"
2770 fi
2771 if enabled ppc; then
2772 echo "AltiVec enabled ${altivec-no}"
2773 echo "PPC 4xx optimizations ${ppc4xx-no}"
2774 echo "dcbzl available ${dcbzl-no}"
2775 echo "performance report ${powerpc_perf-no}"
2776 fi
2777 if enabled sparc; then
2778 echo "VIS enabled ${vis-no}"
2779 fi
2780 echo "gprof enabled ${gprof-no}"
2781 echo "debug symbols ${debug-no}"
2782 echo "strip symbols ${stripping-no}"
2783 echo "optimizations ${optimizations-no}"
2784 echo "static ${static-no}"
2785 echo "shared ${shared-no}"
2786 echo "postprocessing support ${postproc-no}"
2787 echo "new filter support ${avfilter-no}"
2788 echo "filters using lavformat ${avfilter_lavf-no}"
2789 echo "network support ${network-no}"
2790 echo "threading support ${thread_type-no}"
2791 echo "SDL support ${sdl-no}"
2792 echo "Sun medialib support ${mlib-no}"
2793 echo "AVISynth enabled ${avisynth-no}"
2794 echo "libdc1394 support ${libdc1394-no}"
2795 echo "libdirac enabled ${libdirac-no}"
2796 echo "libfaac enabled ${libfaac-no}"
2797 echo "libgsm enabled ${libgsm-no}"
2798 echo "libmp3lame enabled ${libmp3lame-no}"
2799 echo "libnut enabled ${libnut-no}"
2800 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2801 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2802 echo "libopenjpeg enabled ${libopenjpeg-no}"
2803 echo "librtmp enabled ${librtmp-no}"
2804 echo "libschroedinger enabled ${libschroedinger-no}"
2805 echo "libspeex enabled ${libspeex-no}"
2806 echo "libtheora enabled ${libtheora-no}"
2807 echo "libvorbis enabled ${libvorbis-no}"
2808 echo "libvpx enabled ${libvpx-no}"
2809 echo "libx264 enabled ${libx264-no}"
2810 echo "libxvid enabled ${libxvid-no}"
2811 echo "zlib enabled ${zlib-no}"
2812 echo "bzlib enabled ${bzlib-no}"
2813 echo
2814
2815 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2816 echo "Enabled ${type}s:"
2817 eval list=\$$(toupper $type)_LIST
2818 for part in $list; do
2819 enabled $part && echo ${part%_*}
2820 done | sort | pr -3 -t
2821 echo
2822 done
2823
2824 license="LGPL version 2.1 or later"
2825 if enabled nonfree; then
2826 license="nonfree and unredistributable"
2827 elif enabled gplv3; then
2828 license="GPL version 3 or later"
2829 elif enabled lgplv3; then
2830 license="LGPL version 3 or later"
2831 elif enabled gpl; then
2832 license="GPL version 2 or later"
2833 fi
2834
2835 echo "License: $license"
2836
2837 echo "Creating config.mak and config.h..."
2838
2839 # build tree in object directory if source path is different from current one
2840 if enabled source_path_used; then
2841 DIRS="
2842 doc
2843 libavcodec
2844 libavcodec/$arch
2845 libavdevice
2846 libavfilter
2847 libavformat
2848 libavutil
2849 libavutil/$arch
2850 libpostproc
2851 libswscale
2852 libswscale/$arch
2853 tests
2854 tools
2855 "
2856 FILES="
2857 Makefile
2858 common.mak
2859 subdir.mak
2860 doc/texi2pod.pl
2861 libavcodec/Makefile
2862 libavcodec/${arch}/Makefile
2863 libavdevice/Makefile
2864 libavfilter/Makefile
2865 libavformat/Makefile
2866 libavutil/Makefile
2867 libpostproc/Makefile
2868 libswscale/Makefile
2869 "
2870 map 'mkdir -p $v' $DIRS;
2871 map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
2872 fi
2873
2874 enabled stripping || strip="echo skipping strip"
2875
2876 cat > config.mak <<EOF
2877 # Automatically generated by configure - do not modify!
2878 ifndef FFMPEG_CONFIG_MAK
2879 FFMPEG_CONFIG_MAK=1
2880 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
2881 prefix=$prefix
2882 LIBDIR=\$(DESTDIR)$libdir
2883 SHLIBDIR=\$(DESTDIR)$shlibdir
2884 INCDIR=\$(DESTDIR)$incdir
2885 BINDIR=\$(DESTDIR)$bindir
2886 DATADIR=\$(DESTDIR)$datadir
2887 MANDIR=\$(DESTDIR)$mandir
2888 SRC_PATH="$source_path"
2889 SRC_PATH_BARE=$source_path
2890 BUILD_ROOT="$PWD"
2891 ARCH=$arch
2892 CC=$cc
2893 AS=$as
2894 LD=$ld
2895 DEPCC=$dep_cc
2896 YASM=$yasmexe
2897 YASMDEP=$yasmexe
2898 AR=$ar
2899 RANLIB=$ranlib
2900 CP=cp -p
2901 LN_S=$ln_s
2902 STRIP=$strip
2903 CPPFLAGS=$CPPFLAGS
2904 CFLAGS=$CFLAGS
2905 ASFLAGS=$ASFLAGS
2906 CC_O=$CC_O
2907 LDFLAGS=$LDFLAGS
2908 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
2909 SHFLAGS=$SHFLAGS
2910 YASMFLAGS=$YASMFLAGS
2911 BUILDSUF=$build_suffix
2912 FULLNAME=$FULLNAME
2913 LIBPREF=$LIBPREF
2914 LIBSUF=$LIBSUF
2915 LIBNAME=$LIBNAME
2916 SLIBPREF=$SLIBPREF
2917 SLIBSUF=$SLIBSUF
2918 EXESUF=$EXESUF
2919 EXTRA_VERSION=$extra_version
2920 DEPFLAGS=$DEPFLAGS
2921 CCDEP=$CCDEP
2922 ASDEP=$ASDEP
2923 CC_DEPFLAGS=$CC_DEPFLAGS
2924 AS_DEPFLAGS=$AS_DEPFLAGS
2925 HOSTCC=$host_cc
2926 HOSTCFLAGS=$host_cflags
2927 HOSTEXESUF=$HOSTEXESUF
2928 HOSTLDFLAGS=$host_ldflags
2929 HOSTLIBS=$host_libs
2930 TARGET_EXEC=$target_exec
2931 TARGET_PATH=$target_path
2932 SDL_LIBS=$sdl_libs
2933 SDL_CFLAGS=$sdl_cflags
2934 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
2935 EXTRALIBS=$extralibs
2936 INSTALL=install
2937 LIBTARGET=${LIBTARGET}
2938 SLIBNAME=${SLIBNAME}
2939 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
2940 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
2941 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
2942 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
2943 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
2944 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
2945 SAMPLES=$samples
2946 EOF
2947
2948 get_version(){
2949 name=$1
2950 file=$source_path/$2
2951 eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2952 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2953 lcname=$(tolower $name)
2954 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2955 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2956 }
2957
2958 get_version LIBSWSCALE libswscale/swscale.h
2959 get_version LIBPOSTPROC libpostproc/postprocess.h
2960 get_version LIBAVCODEC libavcodec/avcodec.h
2961 get_version LIBAVDEVICE libavdevice/avdevice.h
2962 get_version LIBAVFORMAT libavformat/avformat.h
2963 get_version LIBAVUTIL libavutil/avutil.h
2964 get_version LIBAVFILTER libavfilter/avfilter.h
2965
2966 cat > $TMPH <<EOF
2967 /* Automatically generated by configure - do not modify! */
2968 #ifndef FFMPEG_CONFIG_H
2969 #define FFMPEG_CONFIG_H
2970 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
2971 #define FFMPEG_LICENSE "$(c_escape $license)"
2972 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
2973 #define CC_TYPE "$cc_type"
2974 #define CC_VERSION $cc_version
2975 #define restrict $_restrict
2976 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
2977 #define EXTERN_PREFIX "${extern_prefix}"
2978 #define EXTERN_ASM ${extern_prefix}
2979 EOF
2980
2981 test -n "$malloc_prefix" &&
2982 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
2983
2984 if enabled small || disabled optimizations; then
2985 echo "#undef av_always_inline" >> $TMPH
2986 echo "#define av_always_inline" >> $TMPH
2987 fi
2988
2989 print_config ARCH_ $TMPH config.mak $ARCH_LIST
2990 print_config HAVE_ $TMPH config.mak $HAVE_LIST
2991 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST \
2992 $CONFIG_EXTRA \
2993 $DECODER_LIST \
2994 $ENCODER_LIST \
2995 $HWACCEL_LIST \
2996 $PARSER_LIST \
2997 $BSF_LIST \
2998 $DEMUXER_LIST \
2999 $MUXER_LIST \
3000 $FILTER_LIST \
3001 $PROTOCOL_LIST \
3002 $INDEV_LIST \
3003 $OUTDEV_LIST \
3004
3005 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3006 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3007
3008 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3009 cp_if_changed $TMPH config.h
3010
3011 cat > $TMPH <<EOF
3012 /* Generated by ffconf */
3013 #ifndef AVUTIL_AVCONFIG_H
3014 #define AVUTIL_AVCONFIG_H
3015 EOF
3016
3017 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3018
3019 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3020
3021 cp_if_changed $TMPH libavutil/avconfig.h
3022
3023 test -n "$WARNINGS" && printf "\n$WARNINGS"
3024
3025 # build pkg-config files
3026
3027 pkgconfig_generate(){
3028 name=$1
3029 shortname=${name#lib}${build_suffix}
3030 comment=$2
3031 version=$3
3032 libs=$4
3033 requires=$5
3034 cat <<EOF > $name/$name.pc
3035 prefix=$prefix
3036 exec_prefix=\${prefix}
3037 libdir=$libdir
3038 includedir=$incdir
3039
3040 Name: $name
3041 Description: $comment
3042 Version: $version
3043 Requires: $(enabled shared || echo $requires)
3044 Requires.private: $(enabled shared && echo $requires)
3045 Conflicts:
3046 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3047 Libs.private: $(enabled shared && echo $libs)
3048 Cflags: -I\${includedir}
3049 EOF
3050 cat <<EOF > $name/$name-uninstalled.pc
3051 prefix=
3052 exec_prefix=
3053 libdir=\${pcfiledir}
3054 includedir=${source_path}
3055
3056 Name: $name
3057 Description: $comment
3058 Version: $version
3059 Requires: $requires
3060 Conflicts:
3061 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3062 Cflags: -I\${includedir}
3063 EOF
3064 }
3065
3066 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3067 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3068 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3069 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3070 enabled avfilter &&
3071 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3072 enabled postproc &&
3073 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3074 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"