"fast unaligned" bytestream functions
[libav.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000, 2001, 2002 Fabrice Bellard
6 # Copyright (c) 2005-2006 Diego Biurrun
7 # Copyright (c) 2005-2006 Mans Rullgard
8 #
9
10 # make sure we are running under a compatible shell
11 # try to make this part work with most shells
12
13 try_exec(){
14 echo "Trying shell $1"
15 type "$1" >/dev/null 2>&1 && exec "$@"
16 }
17
18 unset foo
19 (: ${foo%%bar}) 2>/dev/null
20 E1="$?"
21
22 (: ${foo?}) 2>/dev/null
23 E2="$?"
24
25 if test "$E1" != 0 || test "$E2" = 0; then
26 echo "Broken shell detected. Trying alternatives."
27 export FF_CONF_EXEC
28 if test "0$FF_CONF_EXEC" -lt 1; then
29 FF_CONF_EXEC=1
30 try_exec bash "$0" "$@"
31 fi
32 if test "0$FF_CONF_EXEC" -lt 2; then
33 FF_CONF_EXEC=2
34 try_exec ksh "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 3; then
37 FF_CONF_EXEC=3
38 try_exec /usr/xpg4/bin/sh "$0" "$@"
39 fi
40 echo "No compatible shell script interpreter found."
41 echo "This configure script requires a POSIX-compatible shell"
42 echo "such as bash or ksh."
43 echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
44 echo "Instead, install a working POSIX-compatible shell."
45 echo "Disabling this configure test will create a broken FFmpeg."
46 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
47 echo "This bash version ($BASH_VERSION) is broken on your platform."
48 echo "Upgrade to a later version if available."
49 fi
50 exit 1
51 fi
52
53 show_help(){
54 echo "Usage: configure [options]"
55 echo "Options: [defaults in brackets after descriptions]"
56 echo
57 echo "Standard options:"
58 echo " --help print this message"
59 echo " --log[=FILE|yes|no] log tests and output to FILE [config.err]"
60 echo " --prefix=PREFIX install in PREFIX [$PREFIX]"
61 echo " --libdir=DIR install libs in DIR [PREFIX/lib]"
62 echo " --shlibdir=DIR install shared libs in DIR [PREFIX/lib]"
63 echo " --incdir=DIR install includes in DIR [PREFIX/include/ffmpeg]"
64 echo " --mandir=DIR install man page in DIR [PREFIX/man]"
65 echo " --enable-static build static libraries [default=yes]"
66 echo " --disable-static do not build static libraries [default=no]"
67 echo " --enable-shared build shared libraries [default=no]"
68 echo " --disable-shared do not build shared libraries [default=yes]"
69 echo " --enable-gpl allow use of GPL code, the resulting libav*"
70 echo " and ffmpeg will be under GPL [default=no]"
71 echo " --enable-pp enable GPLed postprocessing support [default=no]"
72 echo " --enable-swscaler software scaler support [default=no]"
73 echo " --enable-beosthreads use BeOS threads [default=no]"
74 echo " --enable-os2threads use OS/2 threads [default=no]"
75 echo " --enable-pthreads use pthreads [default=no]"
76 echo " --enable-w32threads use Win32 threads [default=no]"
77 echo " --enable-x11grab enable X11 grabbing [default=no]"
78 echo
79 echo "External library support:"
80 echo " --enable-sunmlib use Sun medialib [default=no]"
81 echo " --enable-dc1394 enable IIDC-1394 grabbing using libdc1394"
82 echo " and libraw1394 [default=no]"
83 echo " --enable-liba52 enable GPLed liba52 support [default=no]"
84 echo " --enable-liba52bin open liba52.so.0 at runtime [default=no]"
85 echo " --enable-avisynth allow reading AVISynth script files [default=no]"
86 echo " --enable-libdts enable GPLed libdts support [default=no]"
87 echo " --enable-libfaac enable FAAC support via libfaac [default=no]"
88 echo " --enable-libfaad enable FAAD support via libfaad [default=no]"
89 echo " --enable-libfaadbin build FAAD support with runtime linking [default=no]"
90 echo " --enable-libgsm enable GSM support via libgsm [default=no]"
91 echo " --enable-libmp3lame enable MP3 encoding via libmp3lame [default=no]"
92 echo " --enable-libnut enable NUT (de)muxing via libnut,"
93 echo " native demuxer exists [default=no]"
94 echo " --enable-libogg enable Ogg muxing via libogg [default=no]"
95 echo " --enable-libtheora enable Theora encoding via libtheora [default=no]"
96 echo " --enable-libvorbis enable Vorbis en/decoding via libvorbis,"
97 echo " native implementations exist [default=no]"
98 echo " --enable-x264 enable H.264 encoding via x264 [default=no]"
99 echo " --enable-xvid enable Xvid encoding via xvidcore,"
100 echo " native MPEG-4/Xvid encoder exists [default=no]"
101 echo " --enable-amr-nb enable amr-nb floating point audio codec"
102 echo " --enable-amr-nb-fixed enable amr-nb fixed-point codec"
103 echo " --enable-amr-wb enable amr-wb floating point audio codec"
104 echo ""
105 echo "Advanced options (experts only):"
106 echo " --source-path=PATH path to source code [$source_path]"
107 echo " --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]"
108 echo " --cross-compile assume a cross-compiler is used"
109 echo " --target-os=OS compiler targets OS [$targetos]"
110 echo " --cc=CC use C compiler CC [$cc]"
111 echo " --make=MAKE use specified make [$make]"
112 echo " --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]"
113 echo " --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
114 echo " --extra-libs=ELIBS add ELIBS [$ELIBS]"
115 echo " --build-suffix=SUFFIX suffix for application specific build []"
116 echo " --arch=ARCH select architecture [$arch]"
117 echo " --cpu=CPU selects the minimum cpu required (affects"
118 echo " instruction selection, may crash on older CPUs)"
119 echo " --enable-powerpc-perf enable performance report on PPC"
120 echo " (requires enabling PMC)"
121 echo " --disable-mmx disable MMX usage"
122 echo " --disable-armv5te disable armv5te usage"
123 echo " --disable-armv6 disable armv6 usage"
124 echo " --disable-iwmmxt disable iwmmxt usage"
125 echo " --disable-altivec disable AltiVec usage"
126 echo " --disable-audio-oss disable OSS audio support [default=no]"
127 echo " --disable-audio-beos disable BeOS audio support [default=no]"
128 echo " --disable-v4l disable video4linux grabbing [default=no]"
129 echo " --disable-v4l2 disable video4linux2 grabbing [default=no]"
130 echo " --disable-bktr disable bktr video grabbing [default=no]"
131 echo " --disable-dv1394 disable DV1394 grabbing [default=no]"
132 echo " --disable-network disable network support [default=no]"
133 echo " --disable-ipv6 disable ipv6 support [default=no]"
134 echo " --disable-zlib disable zlib [default=no]"
135 echo " --disable-vhook disable video hooking support"
136 echo " --disable-debug disable debugging symbols"
137 echo " --disable-mpegaudio-hp faster (but less accurate)"
138 echo " MPEG audio decoding [default=no]"
139 echo " --disable-protocols disable I/O protocols support [default=no]"
140 echo " --disable-ffmpeg disable ffmpeg build"
141 echo " --disable-ffserver disable ffserver build"
142 echo " --disable-ffplay disable ffplay build"
143 echo " --enable-small optimize for size instead of speed"
144 echo " --enable-memalign-hack emulate memalign, interferes with memory debuggers"
145 echo " --disable-encoder=NAME disables encoder NAME"
146 echo " --enable-encoder=NAME enables encoder NAME"
147 echo " --disable-decoder=NAME disables decoder NAME"
148 echo " --enable-decoder=NAME enables decoder NAME"
149 echo " --disable-encoders disables all encoders"
150 echo " --disable-decoders disables all decoders"
151 echo " --disable-muxer=NAME disables muxer NAME"
152 echo " --enable-muxer=NAME enables muxer NAME"
153 echo " --disable-muxers disables all muxers"
154 echo " --disable-demuxer=NAME disables demuxer NAME"
155 echo " --enable-demuxer=NAME enables demuxer NAME"
156 echo " --disable-demuxers disables all demuxers"
157 echo " --enable-parser=NAME enables parser NAME"
158 echo " --disable-parser=NAME disables parser NAME"
159 echo " --disable-parsers disables all parsers"
160 echo
161 echo "Developer options (useful when working on FFmpeg itself):"
162 echo " --enable-gprof enable profiling with gprof [$gprof]"
163 echo " --disable-opts disable compiler optimizations"
164 echo " --enable-extra-warnings enable more compiler warnings"
165 echo " --disable-strip disable stripping of executables and shared libraries"
166 echo ""
167 echo "NOTE: Object files are built at the place where configure is launched."
168 exit 1
169 }
170
171 log(){
172 echo "$@" >>$logfile
173 }
174
175 log_file(){
176 log BEGIN $1
177 cat -n $1 >>$logfile
178 log END $1
179 }
180
181 echolog(){
182 log "$@"
183 echo "$@"
184 }
185
186 die(){
187 echolog "$@"
188 cat <<EOF
189 If you think configure made a mistake, make sure you are using the latest
190 version from SVN. If the latest version fails, report the problem to the
191 ffmpeg-devel@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
192 EOF
193 if enabled logging; then
194 cat <<EOF
195 Include the log file "$logfile" produced by configure as this will help
196 solving the problem.
197 EOF
198 else
199 cat <<EOF
200 Rerun configure with logging enabled (do not use --log=no), and include the
201 log this produces with your report.
202 EOF
203 fi
204 rm -f $TMPC $TMPO $TMPE $TMPS $TMPH
205 exit 1
206 }
207
208 # "tr '[a-z]' '[A-Z]'" is a workaround for Solaris tr not grokking "tr a-z A-Z"
209 toupper(){
210 echo "$@" | tr '[a-z]' '[A-Z]'
211 }
212
213 tolower(){
214 echo "$@" | tr '[A-Z]' '[a-z]'
215 }
216
217 set_all(){
218 value=$1
219 shift
220 for var in $*; do
221 eval $var=$value
222 done
223 }
224
225 pushvar(){
226 for var in $*; do
227 eval level=\${${var}_level:=0}
228 eval ${var}_${level}="\$$var"
229 eval ${var}_level=$(($level+1))
230 done
231 }
232
233 popvar(){
234 for var in $*; do
235 eval level=\${${var}_level:-0}
236 test $level = 0 && continue
237 eval level=$(($level-1))
238 eval $var="\${${var}_${level}}"
239 eval ${var}_level=$level
240 eval unset ${var}_${level}
241 done
242 }
243
244 enable(){
245 set_all yes $*
246 }
247
248 disable(){
249 set_all no $*
250 }
251
252 enabled(){
253 eval test "x\$$1" = "xyes"
254 }
255
256 disabled(){
257 eval test "x\$$1" = "xno"
258 }
259
260 enabled_all(){
261 for opt; do
262 enabled $opt || return 1
263 done
264 }
265
266 disabled_all(){
267 for opt; do
268 disabled $opt || return 1
269 done
270 }
271
272 enabled_any(){
273 for opt; do
274 enabled $opt && return 0
275 done
276 }
277
278 disabled_any(){
279 for opt; do
280 disabled $opt && return 0
281 done
282 }
283
284 check_deps(){
285 for cfg; do
286 enabled ${cfg}_checking && die "Circular dependency for $cfg."
287 disabled ${cfg}_checking && continue
288 enable ${cfg}_checking
289
290 eval dep_all="\$${cfg}_deps"
291 eval dep_any="\$${cfg}_deps_any"
292
293 pushvar cfg dep_all dep_any
294 check_deps $dep_all $dep_any
295 popvar cfg dep_all dep_any
296
297 enabled_all $dep_all || disable $cfg
298 enabled_any $dep_any || disable $cfg
299
300 disable ${cfg}_checking
301 done
302 }
303
304 print_config(){
305 pfx=$1
306 header=$2
307 makefile=$3
308 shift 3
309 for cfg; do
310 if enabled $cfg; then
311 ucname="${pfx}`toupper $cfg`"
312 echo "#define ${ucname} 1" >> $header
313 echo "${ucname}=yes" >> $makefile
314 fi
315 done
316 }
317
318 flags_saved(){
319 (: ${SAVE_CFLAGS?}) 2>/dev/null
320 }
321
322 save_flags(){
323 flags_saved && return
324 SAVE_CFLAGS="$CFLAGS"
325 SAVE_LDFLAGS="$LDFLAGS"
326 SAVE_extralibs="$extralibs"
327 }
328
329 restore_flags(){
330 flags_saved || return
331 CFLAGS="$SAVE_CFLAGS"
332 LDFLAGS="$SAVE_LDFLAGS"
333 extralibs="$SAVE_extralibs"
334 unset SAVE_CFLAGS
335 unset SAVE_LDFLAGS
336 unset SAVE_extralibs
337 }
338
339 temp_cflags(){
340 save_flags
341 CFLAGS="$CFLAGS $*"
342 }
343
344 temp_ldflags(){
345 save_flags
346 LDFLAGS="$LDFLAGS $*"
347 }
348
349 temp_extralibs(){
350 save_flags
351 extralibs="$extralibs $*"
352 }
353
354 append(){
355 var=$1
356 shift
357 flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
358 eval "$var=\"\$$var $*\""
359 }
360
361 add_cflags(){
362 append CFLAGS "$@"
363 }
364
365 add_ldflags(){
366 append LDFLAGS "$@"
367 }
368
369 add_extralibs(){
370 append extralibs "$@"
371 }
372
373 check_cmd(){
374 log "$@"
375 "$@" >>$logfile 2>&1
376 }
377
378 check_cc(){
379 log check_cc "$@"
380 cat >$TMPC
381 log_file $TMPC
382 check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
383 }
384
385 check_cpp(){
386 log check_cpp "$@"
387 cat >$TMPC
388 log_file $TMPC
389 check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
390 }
391
392 check_ld(){
393 log check_ld "$@"
394 check_cc || return
395 check_cmd $cc $LDFLAGS "$@" -o $TMPE $TMPO $extralibs
396 }
397
398 check_cflags(){
399 log check_cflags "$@"
400 check_cc "$@" <<EOF && add_cflags "$@"
401 int x;
402 EOF
403 }
404
405 check_ldflags(){
406 log check_ldflags "$@"
407 check_ld "$@" <<EOF && add_ldflags "$@"
408 int main(){
409 return 0;
410 }
411 EOF
412 }
413
414 check_header(){
415 log check_header "$@"
416 header=$1
417 shift
418 var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
419 disable $var
420 check_cpp "$@" <<EOF && enable $var
421 #include <$header>
422 int x;
423 EOF
424 }
425
426 check_func(){
427 log check_func "$@"
428 func=$1
429 shift
430 disable $func
431 check_ld "$@" <<EOF && enable $func
432 extern int $func();
433 int main(){
434 $func();
435 }
436 EOF
437 }
438
439 check_func2(){
440 log check_func2 "$@"
441 headers=$1
442 func=$2
443 shift 2
444 disable $func
445 incs=""
446 for hdr in $headers; do
447 incs="$incs
448 #include <$hdr>"
449 done
450 check_ld "$@" <<EOF && enable $func
451 $incs
452 int main(){
453 (void) $func;
454 return 0;
455 }
456 EOF
457 }
458
459 check_lib(){
460 log check_lib "$@"
461 header="$1"
462 func="$2"
463 shift 2
464 temp_extralibs "$@"
465 check_header $header && check_func $func && add_extralibs "$@"
466 err=$?
467 restore_flags
468 return $err
469 }
470
471 check_lib2(){
472 log check_lib2 "$@"
473 headers="$1"
474 func="$2"
475 shift 2
476 temp_extralibs "$@"
477 check_func2 "$headers" $func && add_extralibs "$@"
478 err=$?
479 restore_flags
480 return $err
481 }
482
483 check_exec(){
484 check_ld "$@" && { enabled cross_compile || $TMPE >>$logfile 2>&1; }
485 }
486
487 check_exec_crash(){
488 code=`cat`
489
490 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
491 # are safe but may not be available everywhere. Thus we use
492 # raise(SIGTERM) instead. The check is run in a subshell so we
493 # can redirect the "Terminated" message from the shell. SIGBUS
494 # is not defined by standard C so it is used conditionally.
495
496 (check_exec "$@") >>$logfile 2>&1 <<EOF
497 #include <signal.h>
498 static void sighandler(int sig){
499 raise(SIGTERM);
500 }
501 int main(){
502 signal(SIGILL, sighandler);
503 signal(SIGFPE, sighandler);
504 signal(SIGSEGV, sighandler);
505 #ifdef SIGBUS
506 signal(SIGBUS, sighandler);
507 #endif
508 { $code }
509 }
510 EOF
511 }
512
513 require(){
514 name="$1"
515 header="$2"
516 func="$3"
517 shift 3
518 check_lib $header $func "$@" || die "ERROR: $name not found"
519 }
520
521 require2(){
522 name="$1"
523 headers="$2"
524 func="$3"
525 shift 3
526 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
527 }
528
529 check_foo_config(){
530 cfg=$1
531 pkg=$2
532 header=$3
533 func=$4
534 shift 4
535 disable $cfg
536 check_cmd ${pkg}-config --version
537 err=$?
538 if test "$err" = 0; then
539 temp_cflags `${pkg}-config --cflags`
540 temp_extralibs `${pkg}-config --libs`
541 check_lib "$@" $header $func && enable $cfg
542 fi
543 return $err
544 }
545
546 apply(){
547 file=$1
548 shift
549 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
550 }
551
552 CONFIG_LIST='
553 encoders
554 decoders
555 parsers
556 muxers
557 demuxers
558 amr
559 amr_nb
560 amr_nb_fixed
561 amr_wb
562 audio_beos
563 audio_oss
564 avisynth
565 beos_netserver
566 bktr
567 dc1394
568 dv1394
569 ffmpeg
570 ffplay
571 ffserver
572 gpl
573 gprof
574 ipv6
575 liba52
576 liba52bin
577 libdts
578 libfaac
579 libfaad
580 libfaadbin
581 libgsm
582 libmp3lame
583 libnut
584 libogg
585 libtheora
586 libvorbis
587 memalign_hack
588 mpegaudio_hp
589 network
590 powerpc_perf
591 pp
592 protocols
593 swscaler
594 vhook
595 v4l
596 v4l2
597 x11grab
598 x264
599 xvid
600 zlib
601 '
602
603 THREADS_LIST='
604 beosthreads
605 os2threads
606 pthreads
607 w32threads
608 '
609
610 HAVE_LIST="
611 $THREADS_LIST
612 altivec
613 altivec_h
614 armv5te
615 armv6
616 arpa_inet_h
617 byteswap_h
618 cmov
619 dcbzl
620 dev_bktr_ioctl_bt848_h
621 dev_bktr_ioctl_meteor_h
622 dev_ic_bt8xx_h
623 dev_video_meteor_ioctl_meteor_h
624 dev_video_bktr_ioctl_bt848_h
625 dlfcn_h
626 dlopen
627 ebp_available
628 ebx_available
629 fast_64bit
630 fast_cmov
631 fast_unaligned
632 freetype2
633 imlib2
634 inet_aton
635 iwmmxt
636 localtime_r
637 lrintf
638 machine_ioctl_bt848_h
639 machine_ioctl_meteor_h
640 malloc_h
641 memalign
642 mlib
643 mmi
644 mmx
645 os2
646 sdl
647 sdl_video_size
648 soundcard_h
649 sys_poll_h
650 sys_soundcard_h
651 threads
652 "
653
654 TARGET_LIST='
655 altivec
656 armv5te
657 armv6
658 iwmmxt
659 mmi
660 mmx
661 '
662
663 CMDLINE_SELECT="
664 $CONFIG_LIST
665 $TARGET_LIST
666 $THREADS_LIST
667 debug
668 extra_warnings
669 shared
670 static
671 "
672
673 dxa_decoder_deps="zlib"
674 flashsv_decoder_deps="zlib"
675 flashsv_encoder_deps="zlib"
676 mpeg_xvmc_decoder_deps="xvmc"
677 png_decoder_deps="zlib"
678 png_encoder_deps="zlib"
679 x264_encoder_deps="x264"
680 xvid_encoder_deps="xvid"
681 zmbv_decoder_deps="zlib"
682 zmbv_encoder_deps="zlib"
683
684 aac_decoder_deps="libfaad"
685 mpeg4aac_decoder_deps="libfaad"
686 amr_nb_decoder_deps_any="amr_nb amr_nb_fixed"
687 amr_nb_encoder_deps_any="amr_nb amr_nb_fixed"
688 amr_wb_decoder_deps="amr_wb"
689 amr_wb_encoder_deps="amr_wb"
690 dts_decoder_deps="libdts"
691 faac_encoder_deps="libfaac"
692 liba52_decoder_deps="liba52"
693 libgsm_decoder_deps="libgsm"
694 libgsm_encoder_deps="libgsm"
695 libgsm_ms_decoder_deps="libgsm"
696 libgsm_ms_encoder_deps="libgsm"
697 libtheora_encoder_deps="libtheora"
698 mp3lame_encoder_deps="libmp3lame"
699 oggvorbis_decoder_deps="libvorbis"
700 oggvorbis_encoder_deps="libvorbis"
701
702 ac3_demuxer_deps="ac3_parser"
703 audio_demuxer_deps_any="audio_oss audio_beos"
704 audio_muxer_deps_any="audio_oss audio_beos"
705 dc1394_demuxer_deps="dc1394"
706 dv1394_demuxer_deps="dv1394"
707 gxf_muxer_deps="gpl"
708 libnut_demuxer_deps="libnut"
709 libnut_muxer_deps="libnut"
710 ogg_muxer_deps="libogg"
711 redir_demuxer_deps="network"
712 rtp_muxer_deps="network"
713 rtsp_demuxer_deps="network"
714 sdp_demuxer_deps="network"
715 v4l2_demuxer_deps="v4l2"
716 video_grab_bktr_demuxer_deps="bktr"
717 video_grab_v4l_demuxer_deps="v4l"
718 x11_grab_device_demuxer_deps="x11grab"
719
720 ffplay_deps="sdl"
721 ffserver_deps="network protocols muxers"
722 network_deps="protocols"
723
724 # set temporary file name
725 if test ! -z "$TMPDIR" ; then
726 TMPDIR1="${TMPDIR}"
727 elif test ! -z "$TEMPDIR" ; then
728 TMPDIR1="${TEMPDIR}"
729 else
730 TMPDIR1="/tmp"
731 fi
732
733 TMPC="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.c"
734 TMPO="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.o"
735 TMPE="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}"
736 TMPS="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.S"
737 TMPH="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.h"
738
739 # default parameters
740
741 logging="yes"
742 logfile="config.err"
743
744 # installation paths
745 PREFIX="/usr/local"
746 libdir='${PREFIX}/lib'
747 shlibdir="$libdir"
748 incdir='${PREFIX}/include/ffmpeg'
749 mandir='${PREFIX}/man'
750 bindir='${PREFIX}/bin'
751
752 # toolchain
753 cross_prefix=""
754 cross_compile="no"
755 cc="gcc"
756 ar="ar"
757 ranlib="ranlib"
758 make="make"
759 strip="strip"
760 asmalign_pot="unknown"
761
762 # machine
763 arch=`uname -m`
764 cpu="generic"
765 powerpc_perf="no"
766 mmx="default"
767 cmov="no"
768 fast_cmov="no"
769 fast_unaligned="no"
770 armv5te="default"
771 armv6="default"
772 iwmmxt="default"
773 altivec="default"
774 dcbzl="no"
775 mmi="default"
776 bigendian="no"
777
778 # OS
779 targetos=$(tolower $(uname -s))
780 beos_netserver="no"
781 os2="no"
782
783 # non-library system interfaces
784 audio_beos="default"
785 audio_oss="yes"
786 bktr="yes"
787 dv1394="yes"
788 v4l2="yes"
789 v4l="yes"
790
791 # libraries
792 amr_nb="no"
793 amr_nb_fixed="no"
794 amr_wb="no"
795 avisynth="no"
796 dc1394="no"
797 dlfcn_h="no"
798 dlopen="no"
799 liba52="no"
800 liba52bin="no"
801 libdts="no"
802 libfaac="no"
803 libfaad2="no"
804 libfaad="no"
805 libfaadbin="no"
806 libgsm="no"
807 libmp3lame="no"
808 libnut="no"
809 libogg="no"
810 libtheora="no"
811 libvorbis="no"
812 mlib="no"
813 x11grab="no"
814 x264="no"
815 xvid="no"
816 zlib="yes"
817
818 # configurable options
819 debug="yes"
820 dostrip="yes"
821 extra_warnings="no"
822 ffmpeg="yes"
823 ffplay="yes"
824 ffserver="yes"
825 gpl="no"
826 gprof="no"
827 ipv6="yes"
828 shared="no"
829 static="yes"
830 memalign_hack="no"
831 mpegaudio_hp="yes"
832 network="yes"
833 optimize="yes"
834 pp="no"
835 protocols="yes"
836 swscaler="no"
837 vhook="default"
838
839 # threading
840 beosthreads="no"
841 os2threads="no"
842 pthreads="no"
843 w32threads="no"
844 thread_type="no"
845
846 # build settings
847 SHFLAGS='-shared -Wl,-soname,$@'
848 VHOOKSHFLAGS='$(SHFLAGS)'
849 LIBOBJFLAGS=""
850 FFLDFLAGS=-Wl,--warn-common
851 LDLATEFLAGS='-Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
852 FFSERVERLDFLAGS=-Wl,-E
853 LDCONFIG="ldconfig"
854 LIBPREF="lib"
855 LIBSUF=".a"
856 LIB='$(LIBPREF)$(NAME)$(LIBSUF)'
857 SLIBPREF="lib"
858 SLIBSUF=".so"
859 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
860 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
861 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
862 EXESUF=""
863 BUILDSUF=""
864 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(libdir)/$(LIB)"'
865
866 # find source path
867 source_path="`dirname \"$0\"`"
868 source_path_used="yes"
869 if test -z "$source_path" -o "$source_path" = "." ; then
870 source_path="`pwd`"
871 source_path_used="no"
872 else
873 source_path="`cd \"$source_path\"; pwd`"
874 echo "$source_path" | grep -q '[[:blank:]]' &&
875 die "Out of tree builds are impossible with whitespace in source path."
876 fi
877
878 if test x"$1" = x"-h" -o x"$1" = x"--help" ; then
879 show_help
880 fi
881
882 FFMPEG_CONFIGURATION="$@"
883
884 ENCODER_LIST=`sed -n 's/^[^#]*ENC.*, *\(.*\)).*/\1_encoder/p' "$source_path/libavcodec/allcodecs.c"`
885 DECODER_LIST=`sed -n 's/^[^#]*DEC.*, *\(.*\)).*/\1_decoder/p' "$source_path/libavcodec/allcodecs.c"`
886 PARSER_LIST=`sed -n 's/^[^#]*PARSER.*, *\(.*\)).*/\1_parser/p' "$source_path/libavcodec/allcodecs.c"`
887 MUXER_LIST=`sed -n 's/^[^#]*_MUX.*, *\(.*\)).*/\1_muxer/p' "$source_path/libavformat/allformats.c"`
888 DEMUXER_LIST=`sed -n 's/^[^#]*DEMUX.*, *\(.*\)).*/\1_demuxer/p' "$source_path/libavformat/allformats.c"`
889
890 enable $ENCODER_LIST $DECODER_LIST $PARSER_LIST $MUXER_LIST $DEMUXER_LIST
891
892 die_unknown(){
893 echo "Unknown option \"$1\"."
894 echo "See $0 --help for available options."
895 exit 1
896 }
897
898 for opt do
899 optval="${opt#*=}"
900 case "$opt" in
901 --log)
902 ;;
903 --log=*) logging="$optval"
904 ;;
905 --prefix=*) PREFIX="$optval"
906 ;;
907 --libdir=*) libdir="$optval"
908 ;;
909 --shlibdir=*) shlibdir="$optval"
910 ;;
911 --incdir=*) incdir="$optval"
912 ;;
913 --mandir=*) mandir="$optval"
914 ;;
915 --source-path=*) source_path="$optval"
916 ;;
917 --cross-prefix=*) cross_prefix="$optval"
918 ;;
919 --cross-compile) cross_compile="yes"
920 ;;
921 --target-os=*) targetos="$optval"
922 ;;
923 --cc=*) cc="$optval"
924 ;;
925 --make=*) make="$optval"
926 ;;
927 --extra-cflags=*) add_cflags "$optval"
928 ;;
929 --extra-ldflags=*) add_ldflags "$optval"
930 ;;
931 --extra-libs=*) add_extralibs "$optval"
932 ;;
933 --build-suffix=*) BUILDSUF="$optval"
934 ;;
935 --arch=*) arch="$optval"
936 ;;
937 --cpu=*) cpu="$optval"
938 ;;
939 --disable-opts) optimize="no"
940 ;;
941 --enable-small) optimize="small"
942 ;;
943 --enable-sunmlib) mlib="yes"
944 ;;
945 --disable-strip) dostrip="no"
946 ;;
947 --disable-encoders) disable $ENCODER_LIST
948 ;;
949 --disable-decoders) disable $DECODER_LIST
950 ;;
951 --disable-muxers) disable $MUXER_LIST
952 ;;
953 --disable-demuxers) disable $DEMUXER_LIST
954 ;;
955 --disable-parsers) disable $PARSER_LIST
956 ;;
957 --enable-*=*|--disable-*=*)
958 eval `echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/'`
959 case "$thing" in
960 encoder|decoder|muxer|demuxer|parser) $action ${optval}_${thing} ;;
961 *) die_unknown "$opt" ;;
962 esac
963 ;;
964 --enable-?*|--disable-?*)
965 eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
966 echo "$CMDLINE_SELECT" | grep -q "^ *$option\$" || die_unknown $opt
967 $action $option
968 ;;
969 --help) show_help
970 ;;
971 *)
972 die_unknown $opt
973 ;;
974 esac
975 done
976
977 case "$arch" in
978 i386|i486|i586|i686|i86pc|BePC)
979 arch="x86_32"
980 enable fast_unaligned
981 ;;
982 x86_64|amd64)
983 arch="x86_32"
984 enable fast_unaligned
985 canon_arch="`$cc -dumpmachine | sed -e 's,\([^-]*\)-.*,\1,'`"
986 if [ x"$canon_arch" = x"x86_64" -o x"$canon_arch" = x"amd64" ]; then
987 if [ -z "`echo $CFLAGS | grep -- -m32`" ]; then
988 arch="x86_64"
989 enable fast_64bit
990 fi
991 fi
992 ;;
993 # armv4l is a subset of armv[567]*l
994 arm|armv[4567]*l)
995 arch="armv4l"
996 ;;
997 alpha)
998 arch="alpha"
999 enable fast_64bit
1000 ;;
1001 "Power Macintosh"|ppc|powerpc)
1002 arch="powerpc"
1003 ;;
1004 ppc64)
1005 arch="powerpc"
1006 enable fast_64bit
1007 ;;
1008 mips|mipsel|IP*)
1009 arch="mips"
1010 ;;
1011 sun4u|sparc64)
1012 arch="sparc64"
1013 enable fast_64bit
1014 ;;
1015 sparc)
1016 arch="sparc"
1017 ;;
1018 sh4)
1019 arch="sh4"
1020 ;;
1021 parisc)
1022 arch="parisc"
1023 ;;
1024 parisc64)
1025 arch="parisc"
1026 enable fast_64bit
1027 ;;
1028 s390|s390x)
1029 arch="s390"
1030 ;;
1031 m68k)
1032 arch="m68k"
1033 ;;
1034 ia64)
1035 arch="ia64"
1036 enable fast_64bit
1037 ;;
1038 bfin)
1039 arch="bfin"
1040 ;;
1041 *)
1042 arch="unknown"
1043 ;;
1044 esac
1045
1046 # OS specific
1047 osextralibs="-lm"
1048 case $targetos in
1049 beos|haiku|zeta)
1050 PREFIX="$HOME/config"
1051 # helps building libavcodec
1052 add_cflags "-DPIC -fomit-frame-pointer"
1053 # 3 gcc releases known for BeOS, each with ugly bugs
1054 gcc_version="`$cc -v 2>&1 | grep version | cut -d ' ' -f3-`"
1055 case "$gcc_version" in
1056 2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1057 mmx="no"
1058 ;;
1059 *20010315*) echo "BeBits gcc"
1060 add_cflags "-fno-expensive-optimizations"
1061 ;;
1062 esac
1063 LDCONFIG="echo ignoring ldconfig"
1064 SHFLAGS=-nostart
1065 # disable Linux things
1066 dv1394="no"
1067 # enable BeOS things
1068 disabled audio_beos || enable_audio_beos
1069 # no need for libm, but the inet stuff
1070 # Check for BONE
1071 # XXX: actually should check for NOT net_server
1072 if (echo $BEINCLUDES|grep 'headers/be/bone' >/dev/null); then
1073 osextralibs="-lbind -lsocket"
1074 else
1075 beos_netserver="yes"
1076 osextralibs="-lnet"
1077 fi ;;
1078 sunos)
1079 dv1394="no"
1080 FFLDFLAGS=""
1081 FFSERVERLDFLAGS=""
1082 SHFLAGS="-shared -Wl,-h,\$@"
1083 add_extralibs "-lsocket -lnsl"
1084 ;;
1085 netbsd)
1086 dv1394="no"
1087 add_extralibs "-lossaudio"
1088 ;;
1089 openbsd)
1090 dv1394="no"
1091 need_memalign="no"
1092 LIBOBJFLAGS="\$(PIC)"
1093 LDCONFIG="ldconfig -m \$(shlibdir)"
1094 SHFLAGS='-shared'
1095 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF).$(LIBVERSION)'
1096 SLIBNAME_WITH_VERSION='$(SLIBNAME)'
1097 SLIBNAME_WITH_MAJOR='$(SLIBNAME)'
1098 add_extralibs "-lossaudio"
1099 ;;
1100 freebsd)
1101 dv1394="no"
1102 need_memalign="no"
1103 add_cflags "-pthread"
1104 ;;
1105 gnu/kfreebsd)
1106 dv1394="no"
1107 add_cflags "-pthread"
1108 ;;
1109 bsd/os)
1110 dv1394="no"
1111 osextralibs="-lpoll -lgnugetopt -lm"
1112 strip="strip -d"
1113 ;;
1114 darwin)
1115 dv1394="no"
1116 need_memalign="no"
1117 SHFLAGS="-dynamiclib -Wl,-single_module -Wl,-install_name,\$(shlibdir)/\$(SLIBNAME),-current_version,\$(SPPVERSION),-compatibility_version,\$(SPPVERSION) -Wl,-read_only_relocs,suppress"
1118 VHOOKSHFLAGS='-dynamiclib -Wl,-single_module -flat_namespace -undefined suppress -Wl,-install_name,$(shlibdir)/vhook/$@'
1119 osextralibs=""
1120 strip="strip -x"
1121 FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1122 SLIBSUF=".dylib"
1123 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
1124 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
1125 FFSERVERLDFLAGS=-Wl,-bind_at_load
1126 ;;
1127 mingw32*)
1128 targetos=mingw32
1129 if enabled_all shared static; then
1130 cat <<EOF
1131 You can only build one library type at once on MinGW.
1132 Specify --disable-static --enable-shared to only build
1133 the shared libraries. To build only the static libraries
1134 you do not need to pass additional options.
1135 EOF
1136 exit 1
1137 fi
1138 dv1394="no"
1139 ffserver="no"
1140 network="no"
1141 SLIBPREF=""
1142 SLIBSUF=".dll"
1143 EXESUF=".exe"
1144 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1145 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
1146 SLIB_EXTRA_CMD="-lib /machine:i386 /def:\$(@:${SLIBSUF}=.def)"
1147 SLIB_INSTALL_EXTRA_CMD="-install -m 644 \$(SLIBNAME_WITH_MAJOR:\$(SLIBSUF)=.lib) \"\$(shlibdir)/\$(SLIBNAME_WITH_MAJOR:\$(SLIBSUF)=.lib)\""
1148 SHFLAGS="-shared -Wl,--output-def,\$(@:${SLIBSUF}=.def),--out-implib,lib\$(SLIBNAME:\$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc"
1149 add_extralibs -lws2_32
1150 ;;
1151 cygwin*)
1152 targetos=cygwin
1153 shlibdir="$bindir"
1154 dv1394="no"
1155 VHOOKSHFLAGS='-shared -L$(BUILD_ROOT)/libavformat -L$(BUILD_ROOT)/libavcodec -L$(BUILD_ROOT)/libswscale -L$(BUILD_ROOT)/libavutil'
1156 VHOOKLIBS='-lavformat$(BUILDSUF) -lavcodec$(BUILDSUF) -lswscale$(BUILDSUF) -lavutil$(BUILDSUF) $(EXTRALIBS)'
1157 osextralibs=""
1158 EXESUF=".exe"
1159 SLIBPREF="cyg"
1160 SLIBSUF=".dll"
1161 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1162 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
1163 SHFLAGS='-shared -Wl,--out-implib=lib$(NAME).dll.a'
1164 ;;
1165 linux)
1166 LDLATEFLAGS="-Wl,--as-needed $LDLATEFLAGS"
1167 ;;
1168 irix*)
1169 targetos=irix
1170 ranlib="echo ignoring ranlib"
1171 ;;
1172 os/2)
1173 TMPE=$TMPE".exe"
1174 ar="emxomfar -p128"
1175 ranlib="echo ignoring ranlib"
1176 strip="echo ignoring strip"
1177 add_cflags "-Zomf"
1178 FFLDFLAGS="-Zomf -Zstack 16384 -s"
1179 SHFLAGS="-Zdll -Zomf"
1180 FFSERVERLDFLAGS=""
1181 LIBPREF=""
1182 LIBSUF=".lib"
1183 SLIBPREF=""
1184 SLIBSUF=".dll"
1185 EXESUF=".exe"
1186 osextralibs=""
1187 pkg_requires=""
1188 dv1394="no"
1189 ffserver="no"
1190 vhook="no"
1191 os2="yes"
1192 ;;
1193 *)
1194 targetos="${targetos}-UNKNOWN"
1195 ;;
1196 esac
1197
1198 add_extralibs $osextralibs
1199
1200 if ! disabled logging ; then
1201 enabled logging || logfile="$logging"
1202 echo "# $0 $@" >$logfile
1203 set >>$logfile
1204 else
1205 logfile=/dev/null
1206 fi
1207
1208 # Combine FFLDFLAGS and the LDFLAGS environment variable.
1209 LDFLAGS="$FFLDFLAGS $LDFLAGS"
1210
1211 test -n "$cross_prefix" && cross_compile=yes
1212 cc="${cross_prefix}${cc}"
1213 ar="${cross_prefix}${ar}"
1214 ranlib="${cross_prefix}${ranlib}"
1215 strip="${cross_prefix}${strip}"
1216
1217 # we need to build at least one lib type
1218 if disabled_all static shared; then
1219 cat <<EOF
1220 At least one library type must be built.
1221 Specify --enable-static to build the static libraries or --enable-shared to
1222 build the shared libraries as well. To only build the shared libraries specify
1223 --disable-static in addition to --enable-shared.
1224 EOF
1225 exit 1;
1226 fi
1227
1228 if disabled libogg; then
1229 enabled libtheora && die "libogg must be enabled to enable libtheora."
1230 enabled libvorbis && die "libogg must be enabled to enable libvorbis."
1231 fi
1232
1233 if enabled_any libfaad libfaadbin ; then
1234 if check_header faad.h; then
1235 check_cc << EOF
1236 #include <faad.h>
1237 #ifndef FAAD2_VERSION
1238 ok faad1
1239 #endif
1240 int main( void ) { return 0; }
1241 EOF
1242 test $? = 0 && enable libfaad2
1243 else
1244 die "FAAD test failed."
1245 fi
1246 fi
1247
1248
1249 if disabled gpl ; then
1250 die_gpl_disabled(){
1251 name=$1
1252 shift
1253 enabled_any $@ && die "$name is under GPL and --enable-gpl is not specified."
1254 }
1255 die_gpl_disabled "The Postprocessing code" pp
1256 die_gpl_disabled "liba52" liba52
1257 die_gpl_disabled "libxvidcore" xvid
1258 die_gpl_disabled "x264" x264
1259 die_gpl_disabled "libdts" libdts
1260 die_gpl_disabled "FAAD2" libfaad2
1261 die_gpl_disabled "The X11 grabber" x11grab
1262 die_gpl_disabled "The software scaler" swscaler
1263 fi
1264
1265 # compute MMX state
1266 if test $mmx = "default"; then
1267 if test $arch = "x86_32" -o $arch = "x86_64"; then
1268 mmx="yes"
1269 else
1270 mmx="no"
1271 fi
1272 fi
1273
1274 test -z "$need_memalign" && need_memalign="$mmx"
1275
1276 #Darwin CC versions
1277 needmdynamicnopic="no"
1278 if test $targetos = darwin; then
1279 if test -n "`$cc -v 2>&1 | grep xlc`"; then
1280 add_cflags "-qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto"
1281 else
1282 add_cflags "-no-cpp-precomp -pipe"
1283 check_cflags "-force_cpusubtype_ALL"
1284 check_cflags "-Wno-sign-compare"
1285 disabled shared && needmdynamicnopic="yes"
1286 fi
1287 fi
1288
1289 disabled optimize || add_cflags -fomit-frame-pointer
1290
1291 # Can only do AltiVec on PowerPC
1292 if test $altivec = "default"; then
1293 if test $arch = "powerpc"; then
1294 altivec="yes"
1295 else
1296 altivec="no"
1297 fi
1298 fi
1299
1300 # Add processor-specific flags
1301 POWERPCMODE="32bits"
1302 if test $cpu != "generic"; then
1303 warn_altivec(){
1304 $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1305 }
1306 case $cpu in
1307 601|ppc601|PowerPC601)
1308 add_cflags "-mcpu=601"
1309 warn_altivec enabled PPC601
1310 ;;
1311 603*|ppc603*|PowerPC603*)
1312 add_cflags "-mcpu=603"
1313 warn_altivec enabled PPC603
1314 ;;
1315 604*|ppc604*|PowerPC604*)
1316 add_cflags "-mcpu=604"
1317 warn_altivec enabled PPC604
1318 ;;
1319 G3|g3|75*|ppc75*|PowerPC75*)
1320 add_cflags "-mcpu=750 -mpowerpc-gfxopt"
1321 warn_altivec enabled PPC75x
1322 ;;
1323 G4|g4|745*|ppc745*|PowerPC745*)
1324 add_cflags "-mcpu=7450 -mpowerpc-gfxopt"
1325 warn_altivec disabled PPC745x
1326 ;;
1327 74*|ppc74*|PowerPC74*)
1328 add_cflags "-mcpu=7400 -mpowerpc-gfxopt"
1329 warn_altivec disabled PPC74xx
1330 ;;
1331 G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1332 add_cflags "-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1333 warn_altivec disabled PPC970
1334 POWERPCMODE="64bits"
1335 ;;
1336 # targets that do NOT support conditional mov (cmov)
1337 i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1338 add_cflags "-march=$cpu"
1339 cmov="no"
1340 ;;
1341 # targets that do support conditional mov (cmov)
1342 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1343 add_cflags "-march=$cpu"
1344 cmov="yes"
1345 fast_cmov="yes"
1346 ;;
1347 # targets that do support conditional mov but on which it's slow
1348 pentium4|prescott|nocona)
1349 add_cflags "-march=$cpu"
1350 cmov="yes"
1351 fast_cmov="no"
1352 ;;
1353 sparc64)
1354 add_cflags "-mcpu=v9"
1355 ;;
1356 bf*) #bf531 bf532 bf533 bf561 bf5xx all get this config
1357 add_cflags "-mfdpic"
1358 add_ldflags "-mfdpic"
1359 ;;
1360 *)
1361 echo "WARNING: Unknown CPU \"$cpu\", ignored."
1362 ;;
1363 esac
1364 fi
1365
1366 gnu_make(){
1367 $1 --version 2>&1 | grep -q GNU
1368 }
1369
1370 if ! gnu_make $make; then
1371 gnu_make gmake && make=gmake || die "GNU make not found."
1372 fi
1373
1374 # make sure we can execute files in $TMPDIR
1375 cat >$TMPE 2>>$logfile <<EOF
1376 #! /bin/sh
1377 EOF
1378 chmod +x $TMPE >>$logfile 2>&1
1379 if ! $TMPE >>$logfile 2>&1; then
1380 cat <<EOF
1381 Unable to create and execute files in $TMPDIR1. Set the TMPDIR environment
1382 variable to another directory and make sure that $TMPDIR1 is not mounted
1383 noexec.
1384 EOF
1385 die "Sanity test failed."
1386 fi
1387 rm $TMPE
1388
1389 # compiler sanity check
1390 check_exec <<EOF
1391 int main(){
1392 return 0;
1393 }
1394 EOF
1395 if test "$?" != 0; then
1396 echo "$cc is unable to create an executable file."
1397 if test -z "$cross_prefix" && disabled cross_compile ; then
1398 echo "If $cc is a cross-compiler, use the --cross-compile option."
1399 echo "Only do this if you know what cross compiling means."
1400 fi
1401 die "C compiler test failed."
1402 fi
1403
1404 if test $arch = "x86_32" -o $arch = "x86_64"; then
1405 # check whether EBP is available on x86
1406 # As 'i' is stored on the stack, this program will crash
1407 # if the base pointer is used to access it because the
1408 # base pointer is cleared in the inline assembly code.
1409 check_exec_crash <<EOF && enable ebp_available
1410 volatile int i=0;
1411 asm volatile (
1412 "xorl %%ebp, %%ebp"
1413 ::: "%ebp");
1414 return i;
1415 EOF
1416
1417 # check wether EBX is available on x86
1418 check_cc <<EOF && enable ebx_available
1419 int main(){
1420 asm volatile ("":::"%ebx");
1421 }
1422 EOF
1423 fi
1424
1425 # check for assembler specific support
1426
1427 if test $arch = "powerpc"; then
1428 check_cc <<EOF && dcbzl=yes
1429 int main(void) {
1430 register long zero = 0;
1431 char data[1024];
1432 asm volatile("dcbzl %0, %1" : : "b" (data), "r" (zero));
1433 return 0;
1434 }
1435 EOF
1436 fi
1437
1438 # check for SIMD availability
1439
1440 # AltiVec flags: The FSF version of GCC differs from the Apple version
1441 if test $arch = "powerpc"; then
1442 if enabled altivec; then
1443 if test -n "`$cc -v 2>&1 | grep version | grep Apple`"; then
1444 add_cflags "-faltivec"
1445 else
1446 add_cflags "-maltivec -mabi=altivec"
1447 fi
1448 fi
1449 fi
1450
1451 check_header altivec.h
1452
1453 # check if our compiler supports Motorola AltiVec C API
1454 if enabled altivec; then
1455 if enabled altivec_h; then
1456 inc_altivec_h="#include <altivec.h>"
1457 else
1458 inc_altivec_h=
1459 fi
1460 check_cc <<EOF || altivec=no
1461 $inc_altivec_h
1462 int main(void) {
1463 vector signed int v1, v2, v3;
1464 v1 = vec_add(v2,v3);
1465 return 0;
1466 }
1467 EOF
1468 fi
1469
1470 # check armv5te instructions support
1471 if test $armv5te = "default" -a $arch = "armv4l"; then
1472 armv5te=no
1473 check_cc <<EOF && armv5te=yes
1474 int main(void) {
1475 __asm__ __volatile__ ("qadd r0, r0, r0");
1476 }
1477 EOF
1478 fi
1479
1480 if test $armv6 = "default" -a $arch = "armv4l"; then
1481 check_cc <<EOF && armv6=yes || armv6=no
1482 int main(void) {
1483 __asm__ __volatile__ ("sadd16 r0, r0, r0");
1484 }
1485 EOF
1486 fi
1487
1488 # check iwmmxt support
1489 if test $iwmmxt = "default" -a $arch = "armv4l"; then
1490 iwmmxt=no
1491 check_cc <<EOF && iwmmxt=yes
1492 int main(void) {
1493 __asm__ __volatile__ ("wunpckelub wr6, wr4");
1494 }
1495 EOF
1496 fi
1497
1498 # mmi only available on mips
1499 if test $mmi = "default"; then
1500 if test $arch = "mips"; then
1501 mmi="yes"
1502 else
1503 mmi="no"
1504 fi
1505 fi
1506
1507 # check if our compiler supports mmi
1508 enabled mmi && check_cc <<EOF || mmi="no"
1509 int main(void) {
1510 __asm__ ("lq \$2, 0(\$2)");
1511 return 0;
1512 }
1513 EOF
1514
1515 # ---
1516 # big/little-endian test
1517 if disabled cross_compile; then
1518 check_ld <<EOF || die "endian test failed" && $TMPE && bigendian="yes"
1519 #include <inttypes.h>
1520 int main(int argc, char ** argv){
1521 volatile uint32_t i=0x01234567;
1522 return (*((uint8_t*)(&i))) == 0x67;
1523 }
1524 EOF
1525 else
1526 # programs cannot be launched if cross compiling, so make a static guess
1527 if test "$arch" = "powerpc" -o "$arch" = "mips" ; then
1528 bigendian="yes"
1529 fi
1530 fi
1531
1532 # ---
1533 # check availability of some header files
1534
1535 check_header malloc.h
1536 check_func memalign
1537
1538 if disabled_all memalign memalign_hack && enabled need_memalign ; then
1539 die "Error, no memalign() but SSE enabled, disable it or use --enable-memalign-hack."
1540 fi
1541
1542 check_header byteswap.h
1543
1544 check_header arpa/inet.h
1545
1546 check_func inet_aton
1547 check_func localtime_r
1548 enabled zlib && check_lib zlib.h zlibVersion -lz || zlib="no"
1549
1550 # ffserver uses poll(),
1551 # if it's not found we can emulate it using select().
1552 if enabled ffserver; then
1553 check_header sys/poll.h
1554 fi
1555
1556 # check for some common methods of building with pthread support
1557 # do this before the optional library checks as some of them require pthreads
1558 if enabled pthreads; then
1559 if check_func pthread_create; then
1560 :
1561 elif check_func pthread_create -pthread; then
1562 add_cflags -pthread
1563 add_ldflags -pthread
1564 elif check_func pthread_create -pthreads; then
1565 add_cflags -pthreads
1566 add_ldflags -pthreads
1567 elif ! check_lib pthread.h pthread_create -lpthread; then
1568 die "ERROR: can't find pthreads library"
1569 fi
1570 fi
1571
1572 for thread in $THREADS_LIST; do
1573 if enabled $thread; then
1574 if ! disabled thread_type ; then
1575 die "ERROR: Only one thread type must be selected."
1576 else
1577 thread_type="$thread"
1578 fi
1579 fi
1580 done
1581
1582 enabled_any amr_nb amr_nb_fixed amr_wb && enable amr
1583 enabled_all amr_nb amr_nb_fixed &&
1584 die "Only one of amr_nb and amr_nb_fixed may be enabled."
1585
1586 # these are off by default, so fail if requested and not available
1587 enabled amr_nb && require libamrnb amrnb/interf_dec.h Speech_Decode_Frame_init -lamrnb -lm
1588 enabled amr_wb && require libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
1589 enabled liba52 && require liba52 a52dec/a52.h a52_init -la52
1590 enabled libdts && require libdts dts.h dts_init -ldts -lm
1591 enabled libgsm && require libgsm gsm.h gsm_create -lgsm
1592 enabled libmp3lame && require LAME lame/lame.h lame_init -lmp3lame -lm
1593 enabled libtheora && require libtheora theora/theora.h theora_info_init -ltheora -logg
1594 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbis -lvorbisenc -logg
1595 enabled libogg && require libogg ogg/ogg.h ogg_sync_init -logg
1596 enabled libnut && require libnut libnut.h nut_demuxer_init -lnut
1597 enabled xvid && require XviD xvid.h xvid_global -lxvidcore
1598 enabled x264 && require x264 x264.h x264_encoder_open -lx264
1599 enabled dc1394 && require libdc1394 libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394
1600 enabled mlib && require mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
1601 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
1602 enabled libfaad && require2 libfaad faad.h faacDecOpen -lfaad
1603 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
1604
1605 # test for lrintf in math.h
1606 check_exec <<EOF && lrintf=yes || lrintf=no
1607 #define _ISOC9X_SOURCE 1
1608 #include <math.h>
1609 int main( void ) { return (lrintf(3.999f) > 0)?0:1; }
1610 EOF
1611
1612 _restrict=
1613 for restrict_keyword in restrict __restrict__ __restrict; do
1614 check_cc <<EOF && _restrict=$restrict_keyword && break
1615 void foo(char * $restrict_keyword p);
1616 EOF
1617 done
1618
1619 # dlopen/dlfcn.h probing
1620
1621 check_header dlfcn.h
1622
1623 if check_func dlopen; then
1624 ldl=
1625 elif check_func dlopen -ldl; then
1626 ldl=-ldl
1627 fi
1628
1629 test "$vhook" = "default" && vhook="$dlopen"
1630
1631 enabled_any vhook liba52bin libfaadbin ffserver && add_extralibs $ldl
1632
1633 if test "$targetos" = cygwin && enabled static ; then
1634 vhook="no"
1635 echo
1636 echo "At the moment vhooks don't work on Cygwin static builds."
1637 echo "Patches welcome."
1638 echo
1639 fi
1640
1641 if enabled vhook; then
1642 check_ldflags -rdynamic
1643 check_ldflags -export-dynamic
1644 fi
1645
1646 enabled audio_beos && add_extralibs "-lmedia -lbe"
1647
1648 check_foo_config imlib2 imlib2 Imlib2.h imlib_load_font
1649 check_foo_config freetype2 freetype ft2build.h FT_Init_FreeType
1650
1651 ##########################################
1652 # SDL check
1653
1654 sdl_too_old=no
1655 sdl=no
1656 SDL_CONFIG="${cross_prefix}sdl-config"
1657 if "${SDL_CONFIG}" --version >/dev/null 2>&1; then
1658 sdl_cflags=`"${SDL_CONFIG}" --cflags`
1659 temp_cflags $sdl_cflags
1660 temp_extralibs `"${SDL_CONFIG}" --libs`
1661 if check_lib SDL.h SDL_Init; then
1662 _sdlversion=`"${SDL_CONFIG}" --version | sed 's/[^0-9]//g'`
1663 if test "$_sdlversion" -lt 121 ; then
1664 sdl_too_old=yes
1665 else
1666 sdl=yes
1667 check_cc $sdl_cflags <<EOF && enable sdl_video_size
1668 #include <SDL.h>
1669 int main(void){
1670 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
1671 int w = vi->current_w;
1672 return 0;
1673 }
1674 EOF
1675 fi
1676 fi
1677 restore_flags
1678 fi
1679
1680 texi2html -version >/dev/null 2>&1 && enable texi2html || disable texi2html
1681
1682 ##########################################
1683 # IPv6 check
1684
1685 enabled network && enabled ipv6 && check_ld <<EOF && ipv6=yes || ipv6=no
1686 #include <sys/types.h>
1687 #include <sys/socket.h>
1688 #include <netinet/in.h>
1689 #include <netdb.h>
1690 int main( void ) {
1691 struct sockaddr_storage saddr;
1692 struct ipv6_mreq mreq6;
1693 getaddrinfo(0,0,0,0);
1694 getnameinfo(0,0,0,0,0,0,0);
1695 IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
1696 }
1697 EOF
1698
1699 enabled v4l && check_header linux/videodev.h || disable v4l
1700 enabled v4l2 && check_header linux/videodev2.h || disable v4l2
1701
1702 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
1703 if enabled bktr; then
1704 { check_header dev/bktr/ioctl_meteor.h &&
1705 check_header dev/bktr/ioctl_bt848.h; } ||
1706 { check_header machine/ioctl_meteor.h &&
1707 check_header machine/ioctl_bt848.h; } ||
1708 { check_header dev/video/meteor/ioctl_meteor.h &&
1709 check_header dev/video/bktr/ioctl_bt848.h; } ||
1710 check_header dev/ic/bt8xx.h ||
1711 disable bktr
1712 fi
1713
1714 enabled audio_oss &&
1715 check_header sys/soundcard.h ||
1716 check_header soundcard.h ||
1717 disable audio_oss
1718
1719 # Deal with the x11 frame grabber
1720 enabled x11grab &&
1721 enabled gpl &&
1722 enabled x11_grab_device_demuxer &&
1723 check_header X11/Xlib.h &&
1724 check_header X11/extensions/XShm.h &&
1725 check_func XOpenDisplay -lX11 &&
1726 check_func XShmCreateImage -lX11 -lXext &&
1727 add_extralibs -lX11 -lXext ||
1728 disable x11_grab_device_demuxer
1729
1730 enabled debug && add_cflags -g
1731
1732 # add some useful compiler flags if supported
1733 check_cflags -Wdeclaration-after-statement
1734 check_cflags -Wall
1735 check_cflags -Wno-switch
1736 check_cflags -Wdisabled-optimization
1737 check_cflags -Wpointer-arith
1738 check_cflags -Wredundant-decls
1739 check_cflags -Wno-pointer-sign
1740 enabled extra_warnings && check_cflags -Winline
1741
1742 # add some linker flags
1743 check_ldflags $LDLATEFLAGS
1744
1745 # not all compilers support -Os
1746 test "$optimize" = "small" && check_cflags -Os
1747
1748 if enabled optimize; then
1749 if test -n "`$cc -v 2>&1 | grep xlc`"; then
1750 add_cflags "-O5"
1751 add_ldflags "-O5"
1752 else
1753 add_cflags "-O3"
1754 fi
1755 fi
1756
1757 # PIC flags for shared library objects where they are needed
1758 if enabled shared; then
1759 # LIBOBJFLAGS may have already been set in the OS configuration
1760 if test -z "$LIBOBJFLAGS" ; then
1761 case "$arch" in
1762 x86_64|ia64|alpha|sparc*|power*) LIBOBJFLAGS="\$(PIC)" ;;
1763 esac
1764 fi
1765 fi
1766
1767 if enabled gprof; then
1768 add_cflags "-p"
1769 add_ldflags "-p"
1770 fi
1771
1772 VHOOKCFLAGS="-fPIC $CFLAGS"
1773 enabled needmdynamicnopic && add_cflags -mdynamic-no-pic
1774
1775 # find if .align arg is power-of-two or not
1776 if test $asmalign_pot = "unknown"; then
1777 asmalign_pot="no"
1778 echo 'asm (".align 3");' | check_cc && asmalign_pot="yes"
1779 fi
1780
1781 enabled_any $ENCODER_LIST && enable encoders
1782 enabled_any $DECODER_LIST && enable decoders
1783 enabled_any $MUXER_LIST && enable muxers
1784 enabled_any $DEMUXER_LIST && enable demuxers
1785
1786 enabled_any $THREADS_LIST && enable threads
1787
1788 check_deps $CONFIG_LIST $HAVE_LIST $DECODER_LIST $ENCODER_LIST $PARSER_LIST \
1789 $DEMUXER_LIST $MUXER_LIST
1790
1791 enabled libogg && append pkg_requires "ogg >= 1.1"
1792 enabled libtheora && append pkg_requires "theora"
1793 enabled libvorbis && append pkg_requires "vorbis vorbisenc"
1794 enabled dc1394 && append pkg_requires "libraw1394"
1795
1796 echo "install prefix $PREFIX"
1797 echo "source path $source_path"
1798 echo "C compiler $cc"
1799 echo "make $make"
1800 echo ".align is power-of-two $asmalign_pot"
1801 echo "ARCH $arch ($cpu)"
1802 if test "$BUILDSUF" != ""; then
1803 echo "build suffix $BUILDSUF"
1804 fi
1805 echo "big-endian $bigendian"
1806 if test $arch = "x86_32" -o $arch = "x86_64"; then
1807 echo "MMX enabled $mmx"
1808 echo "CMOV enabled $cmov"
1809 echo "CMOV is fast $fast_cmov"
1810 fi
1811 if test $arch = "armv4l"; then
1812 echo "ARMv5TE enabled $armv5te"
1813 echo "ARMv6 enabled $armv6"
1814 echo "IWMMXT enabled $iwmmxt"
1815 fi
1816 if test $arch = "mips"; then
1817 echo "MMI enabled $mmi"
1818 fi
1819 if test $arch = "powerpc"; then
1820 echo "AltiVec enabled $altivec"
1821 echo "dcbzl available $dcbzl"
1822 fi
1823 echo "gprof enabled $gprof"
1824 echo "debug symbols $debug"
1825 echo "strip symbols $dostrip"
1826 echo "optimize $optimize"
1827 echo "static $static"
1828 echo "shared $shared"
1829 echo "postprocessing support $pp"
1830 echo "software scaler enabled $swscaler"
1831 echo "video hooking $vhook"
1832 if enabled vhook; then
1833 echo "Imlib2 support $imlib2"
1834 echo "FreeType support $freetype2"
1835 fi
1836 echo "network support $network"
1837 if enabled network; then
1838 echo "IPv6 support $ipv6"
1839 fi
1840 echo "threading support $thread_type"
1841 echo "SDL support $sdl"
1842 if enabled sdl_too_old; then
1843 echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
1844 fi
1845 echo "Sun medialib support $mlib"
1846 echo "AVISynth enabled $avisynth"
1847 echo "liba52 support $liba52"
1848 echo "liba52 dlopened $liba52bin"
1849 echo "libdts support $libdts"
1850 echo "libfaac enabled $libfaac"
1851 echo "libfaad enabled $libfaad"
1852 echo "faadbin enabled $libfaadbin"
1853 echo "libgsm enabled $libgsm"
1854 echo "libmp3lame enabled $libmp3lame"
1855 echo "libnut enabled $libnut"
1856 echo "libogg enabled $libogg"
1857 echo "libtheora enabled $libtheora"
1858 echo "libvorbis enabled $libvorbis"
1859 echo "x264 enabled $x264"
1860 echo "XviD enabled $xvid"
1861 echo "zlib enabled $zlib"
1862 echo "AMR-NB float support $amr_nb"
1863 echo "AMR-NB fixed support $amr_nb_fixed"
1864 echo "AMR-WB float support $amr_wb"
1865 if disabled gpl; then
1866 echo "License: LGPL"
1867 else
1868 echo "License: GPL"
1869 fi
1870
1871 echo "Creating config.mak and config.h..."
1872
1873 echo "# Automatically generated by configure - do not modify!" > config.mak
1874 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
1875 echo "#define FFMPEG_CONFIGURATION \"$FFMPEG_CONFIGURATION\"" >> $TMPH
1876
1877 echo "PREFIX=$PREFIX" >> config.mak
1878 echo "prefix=\$(DESTDIR)\${PREFIX}" >> config.mak
1879 echo "libdir=\$(DESTDIR)$libdir" >> config.mak
1880 echo "shlibdir=\$(DESTDIR)$shlibdir" >> config.mak
1881 echo "incdir=\$(DESTDIR)$incdir" >> config.mak
1882 echo "bindir=\$(DESTDIR)$bindir" >> config.mak
1883 echo "mandir=\$(DESTDIR)$mandir" >> config.mak
1884 echo "MAKE=$make" >> config.mak
1885 echo "CC=$cc" >> config.mak
1886 echo "AR=$ar" >> config.mak
1887 echo "RANLIB=$ranlib" >> config.mak
1888 if enabled dostrip; then
1889 echo "STRIP=$strip" >> config.mak
1890 else
1891 echo "STRIP=echo ignoring strip" >> config.mak
1892 fi
1893
1894 echo "OPTFLAGS=$CFLAGS" >> config.mak
1895 echo "VHOOKCFLAGS=$VHOOKCFLAGS">>config.mak
1896 echo "LDFLAGS=$LDFLAGS" >> config.mak
1897 echo "LDCONFIG=$LDCONFIG" >> config.mak
1898 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
1899 echo "SHFLAGS=$SHFLAGS" >> config.mak
1900 echo "VHOOKSHFLAGS=$VHOOKSHFLAGS" >> config.mak
1901 echo "VHOOKLIBS=$VHOOKLIBS" >> config.mak
1902 echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
1903 echo "BUILD_STATIC=$static" >> config.mak
1904 echo "BUILDSUF=$BUILDSUF" >> config.mak
1905 echo "LIBPREF=$LIBPREF" >> config.mak
1906 echo "LIBSUF=\${BUILDSUF}$LIBSUF" >> config.mak
1907 if enabled static; then
1908 echo "LIB=$LIB" >> config.mak
1909 else # Some Make complain if this variable does not exist.
1910 echo "LIB=" >> config.mak
1911 fi
1912 echo "SLIBPREF=$SLIBPREF" >> config.mak
1913 echo "SLIBSUF=\${BUILDSUF}$SLIBSUF" >> config.mak
1914 echo "EXESUF=\${BUILDSUF}$EXESUF" >> config.mak
1915
1916 ucarch=`toupper $arch`
1917 echo "TARGET_ARCH_${ucarch}=yes" >> config.mak
1918 echo "#define ARCH_${ucarch} 1" >> $TMPH
1919
1920 # special cases
1921 case "$arch" in
1922 x86_32|x86_64)
1923 echo "TARGET_ARCH_X86=yes" >> config.mak
1924 echo "#define ARCH_X86 1" >> $TMPH
1925 ;;
1926 powerpc)
1927 if test "$POWERPCMODE" = "64bits"; then
1928 echo "#define POWERPC_MODE_64BITS 1" >> $TMPH
1929 fi
1930 ;;
1931 sparc64)
1932 echo "TARGET_ARCH_SPARC=yes" >> config.mak
1933 echo "#define ARCH_SPARC 1" >> $TMPH
1934 ;;
1935 esac
1936
1937 if enabled bigendian; then
1938 echo "WORDS_BIGENDIAN=yes" >> config.mak
1939 echo "#define WORDS_BIGENDIAN 1" >> $TMPH
1940 fi
1941 if enabled mmx; then
1942 echo "#define __CPU__ 586" >> $TMPH
1943 fi
1944
1945 if enabled sdl; then
1946 echo "SDL_LIBS=`"${SDL_CONFIG}" --libs`" >> config.mak
1947 echo "SDL_CFLAGS=`"${SDL_CONFIG}" --cflags`" >> config.mak
1948 fi
1949 if enabled texi2html; then
1950 echo "BUILD_DOC=yes" >> config.mak
1951 fi
1952
1953 sws_version=`grep '#define LIBSWSCALE_VERSION ' "$source_path/libswscale/swscale.h" | sed 's/[^0-9\.]//g'`
1954 pp_version=`grep '#define LIBPOSTPROC_VERSION ' "$source_path/libpostproc/postprocess.h" | sed 's/[^0-9\.]//g'`
1955 lavc_version=`grep '#define LIBAVCODEC_VERSION ' "$source_path/libavcodec/avcodec.h" | sed 's/[^0-9\.]//g'`
1956 lavf_version=`grep '#define LIBAVFORMAT_VERSION ' "$source_path/libavformat/avformat.h" | sed 's/[^0-9\.]//g'`
1957 lavu_version=`grep '#define LIBAVUTIL_VERSION ' "$source_path/libavutil/avutil.h" | sed 's/[^0-9\.]//g'`
1958
1959
1960
1961 if enabled shared; then
1962 echo "BUILD_SHARED=yes" >> config.mak
1963 echo "PIC=-fPIC -DPIC" >> config.mak
1964 echo "SPPMAJOR=${pp_version%%.*}" >> config.mak
1965 echo "SPPVERSION=$pp_version" >> config.mak
1966 echo "LAVCMAJOR=${lavc_version%%.*}" >> config.mak
1967 echo "LAVCVERSION=$lavc_version" >> config.mak
1968 echo "LAVFMAJOR=${lavf_version%%.*}" >> config.mak
1969 echo "LAVFVERSION=$lavf_version" >> config.mak
1970 echo "LAVUMAJOR=${lavu_version%%.*}" >> config.mak
1971 echo "LAVUVERSION=$lavu_version" >> config.mak
1972 echo "SWSMAJOR=${sws_version%%.*}" >> config.mak
1973 echo "SWSVERSION=$sws_version" >> config.mak
1974 echo "SLIBNAME=${SLIBNAME}" >> config.mak
1975 echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
1976 echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
1977 echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
1978 echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
1979 fi
1980 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
1981 echo "EXTRALIBS=$extralibs" >> config.mak
1982
1983 print_config HAVE_ $TMPH config.mak $HAVE_LIST
1984 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST
1985 print_config TARGET_ $TMPH config.mak $TARGET_LIST
1986
1987 if test "$targetos" = darwin; then
1988 echo "#define CONFIG_DARWIN 1" >> $TMPH
1989 fi
1990
1991 echo "#define restrict $_restrict" >> $TMPH
1992
1993 if test "$optimize" = "small"; then
1994 echo "#define always_inline" >> $TMPH
1995 echo "#define CONFIG_SMALL 1" >> $TMPH
1996 fi
1997
1998 echo "SRC_PATH=\"$source_path\"" >> config.mak
1999 echo "SRC_PATH_BARE=$source_path" >> config.mak
2000 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2001
2002 # Apparently it's not possible to portably echo a backslash.
2003 if enabled asmalign_pot; then
2004 printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH
2005 else
2006 printf '#define ASMALIGN(ZEROBITS) ".align 1<<" #ZEROBITS "\\n\\t"\n' >> $TMPH
2007 fi
2008
2009
2010 for part in $DECODER_LIST $ENCODER_LIST $PARSER_LIST $DEMUXER_LIST $MUXER_LIST; do
2011 ucname="`toupper $part`"
2012 config_name="CONFIG_$ucname"
2013 enabled_name="ENABLE_$ucname"
2014 if enabled $part; then
2015 echo "#define $config_name 1" >> $TMPH
2016 echo "#define $enabled_name 1" >> $TMPH
2017 echo "$config_name=yes" >> config.mak
2018 else
2019 echo "#define $enabled_name 0" >> $TMPH
2020 fi
2021 done
2022
2023 # Do not overwrite config.h if unchanged to avoid superfluous rebuilds.
2024 if ! cmp -s $TMPH config.h; then
2025 mv -f $TMPH config.h
2026 else
2027 echo "config.h is unchanged"
2028 fi
2029
2030 rm -f $TMPO $TMPC $TMPE $TMPS $TMPH
2031
2032 # build tree in object directory if source path is different from current one
2033 if enabled source_path_used; then
2034 DIRS="\
2035 doc \
2036 libavformat \
2037 libavcodec \
2038 libavcodec/alpha \
2039 libavcodec/armv4l \
2040 libavcodec/bfin \
2041 libavcodec/i386 \
2042 libavcodec/sparc \
2043 libavcodec/mlib \
2044 libavcodec/ppc \
2045 libavcodec/amr \
2046 libpostproc \
2047 libavutil \
2048 libswscale \
2049 tests \
2050 vhook \
2051 "
2052 FILES="\
2053 Makefile \
2054 common.mak \
2055 libavformat/Makefile \
2056 libavcodec/Makefile \
2057 libpostproc/Makefile \
2058 libavutil/Makefile \
2059 libswscale/Makefile \
2060 tests/Makefile \
2061 vhook/Makefile \
2062 doc/Makefile \
2063 doc/texi2pod.pl \
2064 "
2065 for dir in $DIRS ; do
2066 mkdir -p $dir
2067 done
2068 for f in $FILES ; do
2069 ln -sf "$source_path/$f" $f
2070 done
2071 fi
2072
2073
2074 # build pkg-config files
2075 # FIXME: libdir and includedir are hardcoded and may differ from the real path.
2076
2077 pkgconfig_generate(){
2078 name=$1
2079 comment=$2
2080 version=$3
2081 libs=$4
2082 requires=$5
2083 include=$6
2084 cat <<EOF >$name.pc
2085 prefix=$PREFIX
2086 exec_prefix=\${prefix}
2087 libdir=\${exec_prefix}/lib
2088 includedir=\${prefix}/include
2089
2090 Name: $name
2091 Description: $comment
2092 Version: $version
2093 Requires: $requires
2094 Conflicts:
2095 Libs: -L\${libdir} $libs
2096 Cflags: -I\${includedir} -I\${includedir}/$include
2097 EOF
2098 }
2099
2100 pkgconfig_generate_uninstalled(){
2101 name=$1
2102 shortname=${name#lib}
2103 comment=$2
2104 version=$3
2105 libs=$4
2106 requires=$5
2107 cat <<EOF >$name-uninstalled.pc
2108 prefix=
2109 exec_prefix=
2110 libdir=\${pcfiledir}/$name
2111 includedir=\${pcfiledir}/$name
2112
2113 Name: $name
2114 Description: $comment
2115 Version: $version
2116 Requires: $requires
2117 Conflicts:
2118 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2119 Cflags: -I\${includedir}
2120 EOF
2121 }
2122
2123 pkgconfig_generate libavutil "FFmpeg utility library" "$lavu_version" -lavutil "" ffmpeg
2124 pkgconfig_generate_uninstalled libavutil "FFmpeg utility library" "$lavu_version"
2125
2126 pkgconfig_generate libavcodec "FFmpeg codec library" "$lavc_version" "-lavcodec $extralibs" "$pkg_requires libavutil = $lavu_version" ffmpeg
2127 pkgconfig_generate_uninstalled libavcodec "FFmpeg codec library" "$lavc_version" "$extralibs" "$pkg_requires libavutil = $lavu_version"
2128
2129 pkgconfig_generate libavformat "FFmpeg container format library" "$lavf_version" "-lavformat $extralibs" "$pkg_requires libavcodec = $lavc_version" ffmpeg
2130 pkgconfig_generate_uninstalled libavformat "FFmpeg container format library" "$lavf_version" "$extralibs" "$pkg_requires libavcodec = $lavc_version"
2131
2132 if enabled pp; then
2133 pkgconfig_generate libpostproc "FFmpeg post processing library" "$pp_version" -lpostproc "" postproc
2134 pkgconfig_generate_uninstalled libpostproc "FFmpeg post processing library" "$pp_version"
2135 fi
2136
2137 if enabled swscaler; then
2138 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$sws_version" -lswscale "libavutil = $lavu_version" ffmpeg
2139 pkgconfig_generate_uninstalled libswscale "FFmpeg image rescaling library" "$sws_version" "" "libavutil = $lavu_version"
2140 else
2141 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$sws_version" "" "$pkg_requires libavcodec = $lavc_version" ffmpeg
2142 pkgconfig_generate_uninstalled libswscale "FFmpeg image rescaling library" "$sws_version" "" "$pkg_requires libavcodec = $lavc_version"
2143 apply libswscale.pc sed s/^Libs:.*$/Libs:/
2144 apply libswscale-uninstalled.pc sed s/^Libs:.*$/Libs:/
2145 fi