Set default flag filters before compiler detection
[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 echo "Usage: configure [options]"
59 echo "Options: [defaults in brackets after descriptions]"
60 echo
61 echo "Standard options:"
62 echo " --help print this message"
63 echo " --logfile=FILE log tests and output to FILE [config.err]"
64 echo " --disable-logging do not log configure debug information"
65 echo " --prefix=PREFIX install in PREFIX [$prefix]"
66 echo " --bindir=DIR install binaries in DIR [PREFIX/bin]"
67 echo " --datadir=DIR install data files in DIR [PREFIX/share/ffmpeg]"
68 echo " --libdir=DIR install libs in DIR [PREFIX/lib]"
69 echo " --shlibdir=DIR install shared libs in DIR [PREFIX/lib]"
70 echo " --incdir=DIR install includes in DIR [PREFIX/include]"
71 echo " --mandir=DIR install man page in DIR [PREFIX/share/man]"
72 echo
73 echo "Configuration options:"
74 echo " --disable-static do not build static libraries [no]"
75 echo " --enable-shared build shared libraries [no]"
76 echo " --enable-gpl allow use of GPL code, the resulting libs"
77 echo " and binaries will be under GPL [no]"
78 echo " --enable-version3 upgrade (L)GPL to version 3 [no]"
79 echo " --enable-nonfree allow use of nonfree code, the resulting libs"
80 echo " and binaries will be unredistributable [no]"
81 echo " --disable-ffmpeg disable ffmpeg build"
82 echo " --disable-ffplay disable ffplay build"
83 echo " --disable-ffserver disable ffserver build"
84 echo " --enable-postproc enable GPLed postprocessing support [no]"
85 echo " --enable-avfilter video filter support [no]"
86 echo " --enable-avfilter-lavf video filters dependent on avformat [no]"
87 echo " --enable-beosthreads use BeOS threads [no]"
88 echo " --enable-os2threads use OS/2 threads [no]"
89 echo " --enable-pthreads use pthreads [no]"
90 echo " --enable-w32threads use Win32 threads [no]"
91 echo " --enable-x11grab enable X11 grabbing [no]"
92 echo " --disable-network disable network support [no]"
93 echo " --disable-ipv6 disable IPv6 support [no]"
94 echo " --disable-mpegaudio-hp faster (but less accurate) MPEG audio decoding [no]"
95 echo " --enable-gray enable full grayscale support (slower color)"
96 echo " --disable-swscale-alpha disable alpha channel support in swscale"
97 echo " --disable-fastdiv disable table-based division"
98 echo " --enable-small optimize for size instead of speed"
99 echo " --disable-aandct disable AAN DCT code"
100 echo " --disable-fft disable FFT code"
101 echo " --disable-golomb disable Golomb code"
102 echo " --disable-mdct disable MDCT code"
103 echo " --disable-rdft disable RDFT code"
104 echo " --disable-vaapi disable VAAPI code"
105 echo " --disable-vdpau disable VDPAU code"
106 echo " --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)"
107 echo " --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
108 echo " --enable-memalign-hack emulate memalign, interferes with memory debuggers"
109 echo " --enable-beos-netserver enable BeOS netserver"
110 echo " --disable-encoder=NAME disable encoder NAME"
111 echo " --enable-encoder=NAME enable encoder NAME"
112 echo " --disable-encoders disable all encoders"
113 echo " --disable-decoder=NAME disable decoder NAME"
114 echo " --enable-decoder=NAME enable decoder NAME"
115 echo " --disable-decoders disable all decoders"
116 echo " --disable-hwaccel=NAME disable hwaccel NAME"
117 echo " --enable-hwaccel=NAME enable hwaccel NAME"
118 echo " --disable-hwaccels disable all hwaccels"
119 echo " --disable-muxer=NAME disable muxer NAME"
120 echo " --enable-muxer=NAME enable muxer NAME"
121 echo " --disable-muxers disable all muxers"
122 echo " --disable-demuxer=NAME disable demuxer NAME"
123 echo " --enable-demuxer=NAME enable demuxer NAME"
124 echo " --disable-demuxers disable all demuxers"
125 echo " --enable-parser=NAME enable parser NAME"
126 echo " --disable-parser=NAME disable parser NAME"
127 echo " --disable-parsers disable all parsers"
128 echo " --enable-bsf=NAME enable bitstream filter NAME"
129 echo " --disable-bsf=NAME disable bitstream filter NAME"
130 echo " --disable-bsfs disable all bitstream filters"
131 echo " --enable-protocol=NAME enable protocol NAME"
132 echo " --disable-protocol=NAME disable protocol NAME"
133 echo " --disable-protocols disable all protocols"
134 echo " --disable-indev=NAME disable input device NAME"
135 echo " --disable-outdev=NAME disable output device NAME"
136 echo " --disable-indevs disable input devices"
137 echo " --disable-outdevs disable output devices"
138 echo " --disable-devices disable all devices"
139 echo " --enable-filter=NAME enable filter NAME"
140 echo " --disable-filter=NAME disable filter NAME"
141 echo " --disable-filters disable all filters"
142 echo " --list-decoders show all available decoders"
143 echo " --list-encoders show all available encoders"
144 echo " --list-hwaccels show all available hardware accelerators"
145 echo " --list-muxers show all available muxers"
146 echo " --list-demuxers show all available demuxers"
147 echo " --list-parsers show all available parsers"
148 echo " --list-protocols show all available protocols"
149 echo " --list-bsfs show all available bitstream filters"
150 echo " --list-indevs show all available input devices"
151 echo " --list-outdevs show all available output devices"
152 echo " --list-filters show all available filters"
153 echo
154 echo "External library support:"
155 echo " --enable-avisynth enable reading of AVISynth script files [no]"
156 echo " --enable-bzlib enable bzlib [autodetect]"
157 echo " --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]"
158 echo " --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]"
159 echo " --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394"
160 echo " and libraw1394 [no]"
161 echo " --enable-libdirac enable Dirac support via libdirac [no]"
162 echo " --enable-libfaac enable FAAC support via libfaac [no]"
163 echo " --enable-libfaad enable FAAD support via libfaad [no]"
164 echo " --enable-libfaadbin open libfaad.so.0 at runtime [no]"
165 echo " --enable-libgsm enable GSM support via libgsm [no]"
166 echo " --enable-libmp3lame enable MP3 encoding via libmp3lame [no]"
167 echo " --enable-libnut enable NUT (de)muxing via libnut,"
168 echo " native (de)muxer exists [no]"
169 echo " --enable-libopenjpeg enable JPEG 2000 decoding via OpenJPEG [no]"
170 echo " --enable-libschroedinger enable Dirac support via libschroedinger [no]"
171 echo " --enable-libspeex enable Speex decoding via libspeex [no]"
172 echo " --enable-libtheora enable Theora encoding via libtheora [no]"
173 echo " --enable-libvorbis enable Vorbis encoding via libvorbis,"
174 echo " native implementation exists [no]"
175 echo " --enable-libx264 enable H.264 encoding via x264 [no]"
176 echo " --enable-libxvid enable Xvid encoding via xvidcore,"
177 echo " native MPEG-4/Xvid encoder exists [no]"
178 echo " --enable-mlib enable Sun medialib [no]"
179 echo " --enable-zlib enable zlib [autodetect]"
180 echo ""
181 echo "Advanced options (experts only):"
182 echo " --source-path=PATH path to source code [$source_path]"
183 echo " --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]"
184 echo " --enable-cross-compile assume a cross-compiler is used"
185 echo " --sysroot=PATH root of cross-build tree"
186 echo " --sysinclude=PATH location of cross-build system headers"
187 echo " --target-os=OS compiler targets OS [$target_os]"
188 echo " --target-exec=CMD command to run executables on target"
189 echo " --target-path=DIR path to view of build directory on target"
190 echo " --nm=NM use nm tool"
191 echo " --as=AS use assembler AS [$as_default]"
192 echo " --cc=CC use C compiler CC [$cc_default]"
193 echo " --ld=LD use linker LD"
194 echo " --host-cc=HOSTCC use host C compiler HOSTCC"
195 echo " --host-cflags=HCFLAGS use HCFLAGS when compiling for host"
196 echo " --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host"
197 echo " --host-libs=HLIBS use libs HLIBS when linking for host"
198 echo " --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]"
199 echo " --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
200 echo " --extra-libs=ELIBS add ELIBS [$ELIBS]"
201 echo " --extra-version=STRING version string suffix []"
202 echo " --build-suffix=SUFFIX library name suffix []"
203 echo " --arch=ARCH select architecture [$arch]"
204 echo " --cpu=CPU select the minimum required CPU (affects"
205 echo " instruction selection, may crash on older CPUs)"
206 echo " --enable-powerpc-perf enable performance report on PPC"
207 echo " (requires enabling PMC)"
208 echo " --disable-altivec disable AltiVec optimizations"
209 echo " --disable-amd3dnow disable 3DNow! optimizations"
210 echo " --disable-amd3dnowext disable 3DNow! extended optimizations"
211 echo " --disable-mmx disable MMX optimizations"
212 echo " --disable-mmx2 disable MMX2 optimizations"
213 echo " --disable-sse disable SSE optimizations"
214 echo " --disable-ssse3 disable SSSE3 optimizations"
215 echo " --disable-armv5te disable armv5te optimizations"
216 echo " --disable-armv6 disable armv6 optimizations"
217 echo " --disable-armv6t2 disable armv6t2 optimizations"
218 echo " --disable-armvfp disable ARM VFP optimizations"
219 echo " --disable-iwmmxt disable iwmmxt optimizations"
220 echo " --disable-mmi disable MMI optimizations"
221 echo " --disable-neon disable neon optimizations"
222 echo " --disable-vis disable VIS optimizations"
223 echo " --disable-yasm disable use of yasm assembler"
224 echo
225 echo "Developer options (useful when working on FFmpeg itself):"
226 echo " --disable-debug disable debugging symbols"
227 echo " --enable-debug=LEVEL set the debug level [$debuglevel]"
228 echo " --enable-gprof enable profiling with gprof [$gprof]"
229 echo " --disable-optimizations disable compiler optimizations"
230 echo " --enable-extra-warnings enable more compiler warnings"
231 echo " --disable-stripping disable stripping of executables and shared libraries"
232 echo ""
233 echo "NOTE: Object files are built at the place where configure is launched."
234 exit 0
235 }
236
237 log(){
238 echo "$@" >> $logfile
239 }
240
241 log_file(){
242 log BEGIN $1
243 pr -n -t $1 >> $logfile
244 log END $1
245 }
246
247 echolog(){
248 log "$@"
249 echo "$@"
250 }
251
252 die(){
253 echolog "$@"
254 cat <<EOF
255
256 If you think configure made a mistake, make sure you are using the latest
257 version from SVN. If the latest version fails, report the problem to the
258 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
259 EOF
260 if disabled logging; then
261 cat <<EOF
262 Rerun configure with logging enabled (do not use --disable-logging), and
263 include the log this produces with your report.
264 EOF
265 else
266 cat <<EOF
267 Include the log file "$logfile" produced by configure as this will help
268 solving the problem.
269 EOF
270 fi
271 exit 1
272 }
273
274 # Avoid locale weirdness, besides we really just want to translate ASCII.
275 toupper(){
276 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
277 }
278
279 tolower(){
280 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
281 }
282
283 c_escape(){
284 echo "$*" | sed 's/["\\]/\\\0/g'
285 }
286
287 sh_quote(){
288 v=$(echo "$1" | sed "s/'/'\\\\''/g")
289 test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
290 echo "$v"
291 }
292
293 set_all(){
294 value=$1
295 shift
296 for var in $*; do
297 eval $var=$value
298 done
299 }
300
301 set_weak(){
302 value=$1
303 shift
304 for var; do
305 eval : \${$var:=$value}
306 done
307 }
308
309 pushvar(){
310 for var in $*; do
311 eval level=\${${var}_level:=0}
312 eval ${var}_${level}="\$$var"
313 eval ${var}_level=$(($level+1))
314 done
315 }
316
317 popvar(){
318 for var in $*; do
319 eval level=\${${var}_level:-0}
320 test $level = 0 && continue
321 eval level=$(($level-1))
322 eval $var="\${${var}_${level}}"
323 eval ${var}_level=$level
324 eval unset ${var}_${level}
325 done
326 }
327
328 enable(){
329 set_all yes $*
330 }
331
332 disable(){
333 set_all no $*
334 }
335
336 enable_weak(){
337 set_weak yes $*
338 }
339
340 disable_weak(){
341 set_weak no $*
342 }
343
344 enable_safe(){
345 enable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
346 }
347
348 disable_safe(){
349 disable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
350 }
351
352 do_enable_deep(){
353 for var; do
354 enabled $var && continue
355 eval sel="\$${var}_select"
356 eval sgs="\$${var}_suggest"
357 pushvar var sgs
358 enable_deep $sel
359 popvar sgs
360 enable_deep_weak $sgs
361 popvar var
362 done
363 }
364
365 enable_deep(){
366 do_enable_deep $*
367 enable $*
368 }
369
370 enable_deep_weak(){
371 do_enable_deep $*
372 enable_weak $*
373 }
374
375 enabled(){
376 test "${1#!}" = "$1" && op== || op=!=
377 eval test "x\$${1#!}" $op "xyes"
378 }
379
380 disabled(){
381 test "${1#!}" = "$1" && op== || op=!=
382 eval test "x\$${1#!}" $op "xno"
383 }
384
385 enabled_all(){
386 for opt; do
387 enabled $opt || return 1
388 done
389 }
390
391 disabled_all(){
392 for opt; do
393 disabled $opt || return 1
394 done
395 }
396
397 enabled_any(){
398 for opt; do
399 enabled $opt && return 0
400 done
401 }
402
403 disabled_any(){
404 for opt; do
405 disabled $opt && return 0
406 done
407 return 1
408 }
409
410 set_default(){
411 for opt; do
412 eval : \${$opt:=\$${opt}_default}
413 done
414 }
415
416 is_in(){
417 value=$1
418 shift
419 for var in $*; do
420 [ $var = $value ] && return 0
421 done
422 return 1
423 }
424
425 check_deps(){
426 for cfg; do
427 cfg="${cfg#!}"
428 enabled ${cfg}_checking && die "Circular dependency for $cfg."
429 disabled ${cfg}_checking && continue
430 enable ${cfg}_checking
431
432 eval dep_all="\$${cfg}_deps"
433 eval dep_any="\$${cfg}_deps_any"
434 eval dep_sel="\$${cfg}_select"
435 eval dep_sgs="\$${cfg}_suggest"
436
437 pushvar cfg dep_all dep_any dep_sel dep_sgs
438 check_deps $dep_all $dep_any $dep_sel $dep_sgs
439 popvar cfg dep_all dep_any dep_sel dep_sgs
440
441 enabled_all $dep_all || disable $cfg
442 enabled_any $dep_any || disable $cfg
443 disabled_any $dep_sel && disable $cfg
444
445 if enabled $cfg; then
446 eval dep_extralibs="\$${cfg}_extralibs"
447 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
448 enable_deep $dep_sel
449 enable_deep_weak $dep_sgs
450 fi
451
452 disable ${cfg}_checking
453 done
454 }
455
456 print_config(){
457 pfx=$1
458 header=$2
459 makefile=$3
460 shift 3
461 for cfg; do
462 ucname="$(toupper $cfg)"
463 if enabled $cfg; then
464 echo "#define ${pfx}${ucname} 1" >> $header
465 echo "${pfx}${ucname}=yes" >> $makefile
466 else
467 echo "#define ${pfx}${ucname} 0" >> $header
468 fi
469 done
470 }
471
472 flags_saved(){
473 (: ${SAVE_CFLAGS?}) 2> /dev/null
474 }
475
476 save_flags(){
477 flags_saved && return
478 SAVE_CFLAGS="$CFLAGS"
479 SAVE_LDFLAGS="$LDFLAGS"
480 SAVE_extralibs="$extralibs"
481 }
482
483 restore_flags(){
484 flags_saved || return
485 CFLAGS="$SAVE_CFLAGS"
486 LDFLAGS="$SAVE_LDFLAGS"
487 extralibs="$SAVE_extralibs"
488 unset SAVE_CFLAGS
489 unset SAVE_LDFLAGS
490 unset SAVE_extralibs
491 }
492
493 temp_cflags(){
494 save_flags
495 CFLAGS="$CFLAGS $*"
496 }
497
498 temp_ldflags(){
499 save_flags
500 LDFLAGS="$LDFLAGS $*"
501 }
502
503 temp_extralibs(){
504 save_flags
505 extralibs="$extralibs $*"
506 }
507
508 append(){
509 var=$1
510 shift
511 flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
512 eval "$var=\"\$$var $*\""
513 }
514
515 add_cppflags(){
516 append CPPFLAGS $($filter_cppflags "$@")
517 }
518
519 add_cflags(){
520 append CFLAGS $($filter_cflags "$@")
521 }
522
523 add_asflags(){
524 append ASFLAGS $($filter_asflags "$@")
525 }
526
527 add_ldflags(){
528 append LDFLAGS "$@"
529 }
530
531 add_extralibs(){
532 append extralibs "$@"
533 }
534
535 check_cmd(){
536 log "$@"
537 "$@" >> $logfile 2>&1
538 }
539
540 check_cc(){
541 log check_cc "$@"
542 cat > $TMPC
543 log_file $TMPC
544 check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
545 }
546
547 check_cpp(){
548 log check_cpp "$@"
549 cat > $TMPC
550 log_file $TMPC
551 check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
552 }
553
554 check_as(){
555 log check_as "$@"
556 cat > $TMPC
557 log_file $TMPC
558 check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
559 }
560
561 check_asm(){
562 log check_asm "$@"
563 name="$1"
564 asm="$2"
565 shift 2
566 check_as "$@" <<EOF && enable $name || disable $name
567 void foo(void){ __asm__ volatile($asm); }
568 EOF
569 }
570
571 check_yasm(){
572 log check_yasm "$@"
573 echo "$1" > $TMPS
574 log_file $TMPS
575 shift 1
576 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
577 }
578
579 check_ld(){
580 log check_ld "$@"
581 check_cc || return
582 flags=''
583 libs=''
584 for f; do
585 test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
586 done
587 check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
588 }
589
590 check_cppflags(){
591 log check_cppflags "$@"
592 set -- $($filter_cppflags "$@")
593 check_cc "$@" <<EOF && append CPPFLAGS "$@"
594 int x;
595 EOF
596 }
597
598 check_cflags(){
599 log check_cflags "$@"
600 set -- $($filter_cflags "$@")
601 check_cc "$@" <<EOF && append CFLAGS "$@"
602 int x;
603 EOF
604 }
605
606 check_ldflags(){
607 log check_ldflags "$@"
608 check_ld "$@" <<EOF && add_ldflags "$@"
609 int main(void){ return 0; }
610 EOF
611 }
612
613 check_header(){
614 log check_header "$@"
615 header=$1
616 shift
617 disable_safe $header
618 check_cpp "$@" <<EOF && enable_safe $header
619 #include <$header>
620 int x;
621 EOF
622 }
623
624 check_func(){
625 log check_func "$@"
626 func=$1
627 shift
628 disable $func
629 check_ld "$@" <<EOF && enable $func
630 extern int $func();
631 int main(void){ $func(); }
632 EOF
633 }
634
635 check_func_headers(){
636 log check_func_headers "$@"
637 headers=$1
638 func=$2
639 shift 2
640 disable $func
641 incs=""
642 for hdr in $headers; do
643 incs="$incs
644 #include <$hdr>"
645 done
646 check_ld "$@" <<EOF && enable $func && enable_safe $headers
647 $incs
648 int main(int argc, char **argv){
649 (void) $func;
650 return 0;
651 }
652 EOF
653 }
654
655 check_cpp_condition(){
656 log check_cpp_condition "$@"
657 header=$1
658 condition=$2
659 check_cpp <<EOF
660 #include <$header>
661 #if !($condition)
662 #error "unsatisfied condition: $condition"
663 #endif
664 EOF
665 }
666
667 check_lib(){
668 log check_lib "$@"
669 header="$1"
670 func="$2"
671 shift 2
672 temp_extralibs "$@"
673 check_header $header && check_func $func && add_extralibs "$@"
674 err=$?
675 restore_flags
676 return $err
677 }
678
679 check_lib2(){
680 log check_lib2 "$@"
681 headers="$1"
682 func="$2"
683 shift 2
684 temp_extralibs "$@"
685 check_func_headers "$headers" $func && add_extralibs "$@"
686 err=$?
687 restore_flags
688 return $err
689 }
690
691 check_exec(){
692 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
693 }
694
695 check_exec_crash(){
696 code=$(cat)
697
698 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
699 # are safe but may not be available everywhere. Thus we use
700 # raise(SIGTERM) instead. The check is run in a subshell so we
701 # can redirect the "Terminated" message from the shell. SIGBUS
702 # is not defined by standard C so it is used conditionally.
703
704 (check_exec "$@") >> $logfile 2>&1 <<EOF
705 #include <signal.h>
706 static void sighandler(int sig){
707 raise(SIGTERM);
708 }
709 int main(void){
710 signal(SIGILL, sighandler);
711 signal(SIGFPE, sighandler);
712 signal(SIGSEGV, sighandler);
713 #ifdef SIGBUS
714 signal(SIGBUS, sighandler);
715 #endif
716 { $code }
717 }
718 EOF
719 }
720
721 check_type(){
722 log check_type "$@"
723 headers=$1
724 type=$2
725 shift 2
726 disable $type
727 incs=""
728 for hdr in $headers; do
729 incs="$incs
730 #include <$hdr>"
731 done
732 check_cc "$@" <<EOF && enable $type
733 $incs
734 $type v;
735 EOF
736 }
737
738 require(){
739 name="$1"
740 header="$2"
741 func="$3"
742 shift 3
743 check_lib $header $func "$@" || die "ERROR: $name not found"
744 }
745
746 require2(){
747 name="$1"
748 headers="$2"
749 func="$3"
750 shift 3
751 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
752 }
753
754 check_foo_config(){
755 cfg=$1
756 pkg=$2
757 header=$3
758 func=$4
759 shift 4
760 disable $cfg
761 check_cmd ${pkg}-config --version
762 err=$?
763 if test "$err" = 0; then
764 temp_cflags $(${pkg}-config --cflags)
765 temp_extralibs $(${pkg}-config --libs)
766 check_lib "$@" $header $func && enable $cfg
767 fi
768 return $err
769 }
770
771 apply(){
772 file=$1
773 shift
774 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
775 }
776
777 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
778 # system-dependent things.
779
780 COMPONENT_LIST="
781 bsfs
782 decoders
783 demuxers
784 encoders
785 filters
786 hwaccels
787 indevs
788 muxers
789 outdevs
790 parsers
791 protocols
792 "
793
794 CONFIG_LIST="
795 $COMPONENT_LIST
796 aandct
797 avfilter
798 avfilter_lavf
799 avisynth
800 beos_netserver
801 bzlib
802 fastdiv
803 ffmpeg
804 ffplay
805 ffserver
806 fft
807 golomb
808 gpl
809 gprof
810 gray
811 hardcoded_tables
812 ipv6
813 libdc1394
814 libdirac
815 libfaac
816 libfaad
817 libfaadbin
818 libgsm
819 libmp3lame
820 libnut
821 libopencore_amrnb
822 libopencore_amrwb
823 libopenjpeg
824 libschroedinger
825 libspeex
826 libtheora
827 libvorbis
828 libx264
829 libxvid
830 mdct
831 memalign_hack
832 mlib
833 mpegaudio_hp
834 network
835 nonfree
836 postproc
837 powerpc_perf
838 rdft
839 runtime_cpudetect
840 shared
841 small
842 static
843 swscale_alpha
844 vaapi
845 vdpau
846 version3
847 x11grab
848 zlib
849 "
850
851 THREADS_LIST='
852 beosthreads
853 os2threads
854 pthreads
855 w32threads
856 '
857
858 ARCH_LIST='
859 alpha
860 arm
861 bfin
862 ia64
863 m68k
864 mips
865 mips64
866 parisc
867 ppc
868 ppc64
869 s390
870 sh4
871 sparc
872 sparc64
873 x86
874 x86_32
875 x86_64
876 '
877
878 ARCH_EXT_LIST='
879 altivec
880 amd3dnow
881 amd3dnowext
882 armv5te
883 armv6
884 armv6t2
885 armvfp
886 iwmmxt
887 mmi
888 mmx
889 mmx2
890 neon
891 ppc4xx
892 sse
893 ssse3
894 vis
895 '
896
897 HAVE_LIST="
898 $ARCH_EXT_LIST
899 $THREADS_LIST
900 alsa_asoundlib_h
901 altivec_h
902 arpa_inet_h
903 bigendian
904 bswap
905 closesocket
906 cmov
907 conio_h
908 dcbzl
909 dev_bktr_ioctl_bt848_h
910 dev_bktr_ioctl_meteor_h
911 dev_ic_bt8xx_h
912 dev_video_meteor_ioctl_meteor_h
913 dev_video_bktr_ioctl_bt848_h
914 dlfcn_h
915 dlopen
916 dos_paths
917 ebp_available
918 ebx_available
919 fast_64bit
920 fast_cmov
921 fast_unaligned
922 fork
923 gethrtime
924 GetProcessTimes
925 getrusage
926 inet_aton
927 inline_asm
928 ldbrx
929 libdc1394_1
930 libdc1394_2
931 llrint
932 log2
933 loongson
934 lrint
935 lrintf
936 lzo1x_999_compress
937 machine_ioctl_bt848_h
938 machine_ioctl_meteor_h
939 malloc_h
940 memalign
941 mkstemp
942 pld
943 posix_memalign
944 round
945 roundf
946 sdl
947 sdl_video_size
948 setmode
949 socklen_t
950 soundcard_h
951 poll_h
952 sys_mman_h
953 sys_resource_h
954 sys_select_h
955 sys_soundcard_h
956 sys_videoio_h
957 ten_operands
958 termios_h
959 threads
960 truncf
961 VirtualAlloc
962 winsock2_h
963 xform_asm
964 yasm
965 "
966
967 # options emitted with CONFIG_ prefix but not available on command line
968 CONFIG_EXTRA="
969 gplv3
970 lgplv3
971 "
972
973 CMDLINE_SELECT="
974 $ARCH_EXT_LIST
975 $CONFIG_LIST
976 $THREADS_LIST
977 cross_compile
978 debug
979 extra_warnings
980 logging
981 optimizations
982 stripping
983 yasm
984 "
985
986 PATHS_LIST='
987 bindir
988 datadir
989 incdir
990 libdir
991 mandir
992 prefix
993 shlibdir
994 '
995
996 CMDLINE_SET="
997 $PATHS_LIST
998 arch
999 as
1000 build_suffix
1001 cc
1002 cpu
1003 cross_prefix
1004 dep_cc
1005 extra_cflags
1006 extra_version
1007 host_cc
1008 host_cflags
1009 host_ldflags
1010 host_libs
1011 host_os
1012 ld
1013 logfile
1014 nm
1015 source_path
1016 sysinclude
1017 sysroot
1018 target_exec
1019 target_os
1020 target_path
1021 "
1022
1023 # code dependency declarations
1024
1025 # architecture extensions
1026 altivec_deps="ppc"
1027 amd3dnow_deps="mmx"
1028 amd3dnowext_deps="amd3dnow"
1029 armv5te_deps="arm"
1030 armv6_deps="arm"
1031 armv6t2_deps="arm"
1032 armvfp_deps="arm"
1033 iwmmxt_deps="arm"
1034 mmi_deps="mips"
1035 mmx_deps="x86"
1036 mmx2_deps="mmx"
1037 neon_deps="arm"
1038 ppc4xx_deps="ppc"
1039 sse_deps="mmx"
1040 ssse3_deps="sse"
1041 vis_deps="sparc"
1042
1043 # decoders / encoders / hardware accelerators
1044 aac_decoder_select="fft mdct"
1045 ac3_decoder_select="fft mdct"
1046 atrac3_decoder_select="fft mdct"
1047 cavs_decoder_select="golomb"
1048 cook_decoder_select="fft mdct"
1049 cscd_decoder_suggest="zlib"
1050 dca_decoder_select="fft mdct"
1051 dnxhd_encoder_select="aandct"
1052 dxa_decoder_select="zlib"
1053 eac3_decoder_select="fft mdct"
1054 eatgq_decoder_select="aandct"
1055 eatqi_decoder_select="aandct"
1056 ffv1_decoder_select="golomb"
1057 flac_decoder_select="golomb"
1058 flac_encoder_select="golomb"
1059 flashsv_decoder_select="zlib"
1060 flashsv_encoder_select="zlib"
1061 flv_encoder_select="aandct"
1062 h261_encoder_select="aandct"
1063 h263_encoder_select="aandct"
1064 h263_vaapi_hwaccel_deps="va_va_h"
1065 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1066 h263p_encoder_select="aandct"
1067 h264_decoder_select="golomb"
1068 h264_vaapi_hwaccel_deps="va_va_h"
1069 h264_vaapi_hwaccel_select="vaapi"
1070 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1071 h264_vdpau_decoder_select="vdpau h264_decoder"
1072 imc_decoder_select="fft mdct"
1073 jpegls_decoder_select="golomb"
1074 jpegls_encoder_select="golomb"
1075 ljpeg_encoder_select="aandct"
1076 loco_decoder_select="golomb"
1077 mjpeg_encoder_select="aandct"
1078 mpeg1video_encoder_select="aandct"
1079 mpeg2video_encoder_select="aandct"
1080 mpeg4_encoder_select="aandct"
1081 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1082 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1083 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1084 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1085 mpeg2_vaapi_hwaccel_deps="va_va_h"
1086 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1087 mpeg4_vaapi_hwaccel_deps="va_va_h"
1088 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1089 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1090 msmpeg4v1_encoder_select="aandct"
1091 msmpeg4v2_encoder_select="aandct"
1092 msmpeg4v3_encoder_select="aandct"
1093 nellymoser_decoder_select="fft mdct"
1094 nellymoser_encoder_select="fft mdct"
1095 png_decoder_select="zlib"
1096 png_encoder_select="zlib"
1097 qdm2_decoder_select="fft mdct rdft"
1098 rv10_encoder_select="aandct"
1099 rv20_encoder_select="aandct"
1100 rv30_decoder_select="golomb"
1101 rv40_decoder_select="golomb"
1102 shorten_decoder_select="golomb"
1103 sonic_decoder_select="golomb"
1104 sonic_encoder_select="golomb"
1105 sonic_ls_encoder_select="golomb"
1106 svq3_decoder_select="golomb"
1107 svq3_decoder_suggest="zlib"
1108 tiff_decoder_suggest="zlib"
1109 tiff_encoder_suggest="zlib"
1110 tscc_decoder_select="zlib"
1111 vc1_vaapi_hwaccel_deps="va_va_h"
1112 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1113 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1114 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1115 vorbis_decoder_select="fft mdct"
1116 vorbis_encoder_select="fft mdct"
1117 wmav1_decoder_select="fft mdct"
1118 wmav1_encoder_select="fft mdct"
1119 wmav2_decoder_select="fft mdct"
1120 wmav2_encoder_select="fft mdct"
1121 wmv1_encoder_select="aandct"
1122 wmv2_encoder_select="aandct"
1123 wmv3_vaapi_hwaccel_deps="va_va_h"
1124 wmv3_vaapi_hwaccel_select="vaapi wmv3_decoder"
1125 wmv3_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1126 wmv3_vdpau_decoder_select="vdpau wmv3_decoder"
1127 zlib_decoder_select="zlib"
1128 zlib_encoder_select="zlib"
1129 zmbv_decoder_select="zlib"
1130 zmbv_encoder_select="zlib"
1131
1132 # parsers
1133 h264_parser_select="golomb"
1134
1135 # external libraries
1136 libdirac_decoder_deps="libdirac !libschroedinger"
1137 libdirac_encoder_deps="libdirac"
1138 libfaac_encoder_deps="libfaac"
1139 libfaad_decoder_deps="libfaad"
1140 libfaadbin_decoder_extralibs='$ldl'
1141 libgsm_decoder_deps="libgsm"
1142 libgsm_encoder_deps="libgsm"
1143 libgsm_ms_decoder_deps="libgsm"
1144 libgsm_ms_encoder_deps="libgsm"
1145 libmp3lame_encoder_deps="libmp3lame"
1146 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1147 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1148 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1149 libopenjpeg_decoder_deps="libopenjpeg"
1150 libschroedinger_decoder_deps="libschroedinger"
1151 libschroedinger_encoder_deps="libschroedinger"
1152 libspeex_decoder_deps="libspeex"
1153 libtheora_encoder_deps="libtheora"
1154 libvorbis_encoder_deps="libvorbis"
1155 libx264_encoder_deps="libx264"
1156 libxvid_encoder_deps="libxvid"
1157
1158 # demuxers / muxers
1159 ac3_demuxer_deps="ac3_parser"
1160 asf_stream_muxer_select="asf_muxer"
1161 avisynth_demuxer_deps="avisynth"
1162 dirac_demuxer_deps="dirac_parser"
1163 ipod_muxer_select="mov_muxer"
1164 libnut_demuxer_deps="libnut"
1165 libnut_muxer_deps="libnut"
1166 matroska_audio_muxer_select="matroska_muxer"
1167 matroska_demuxer_suggest="zlib bzlib"
1168 mov_demuxer_suggest="zlib"
1169 mp3_demuxer_deps="mpegaudio_parser"
1170 mp4_muxer_select="mov_muxer"
1171 mpegtsraw_demuxer_select="mpegts_demuxer"
1172 mxf_d10_muxer_select="mxf_muxer"
1173 psp_muxer_select="mov_muxer"
1174 redir_demuxer_deps="network"
1175 rtp_muxer_deps="network rtp_protocol"
1176 rtsp_demuxer_deps="sdp_demuxer"
1177 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1178 tg2_muxer_select="mov_muxer"
1179 tgp_muxer_select="mov_muxer"
1180
1181 # indevs / outdevs
1182 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1183 alsa_indev_extralibs="-lasound"
1184 alsa_outdev_deps="alsa_asoundlib_h"
1185 alsa_outdev_extralibs="-lasound"
1186 audio_beos_indev_deps="audio_beos"
1187 audio_beos_indev_extralibs="-lmedia -lbe"
1188 audio_beos_outdev_deps="audio_beos"
1189 audio_beos_outdev_extralibs="-lmedia -lbe"
1190 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1191 dv1394_indev_deps="dv1394 dv_demuxer"
1192 jack_indev_deps="jack_jack_h"
1193 jack_indev_extralibs="-ljack"
1194 libdc1394_indev_deps="libdc1394"
1195 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1196 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1197 v4l_indev_deps="linux_videodev_h"
1198 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1199 vfwcap_indev_deps="capCreateCaptureWindow"
1200 vfwcap_indev_extralibs="-lvfw32"
1201 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1202 x11_grab_device_indev_extralibs="-lX11 -lXext"
1203
1204 # protocols
1205 gopher_protocol_deps="network"
1206 http_protocol_deps="network"
1207 rtp_protocol_deps="udp_protocol"
1208 tcp_protocol_deps="network"
1209 udp_protocol_deps="network"
1210
1211 # filters
1212 movie_filter_deps="avfilter_lavf"
1213
1214 # programs
1215 ffplay_deps="sdl"
1216 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1217 ffserver_extralibs='$ldl'
1218
1219
1220 # default parameters
1221
1222 logfile="config.err"
1223
1224 # installation paths
1225 prefix_default="/usr/local"
1226 bindir_default='${prefix}/bin'
1227 datadir_default='${prefix}/share/ffmpeg'
1228 incdir_default='${prefix}/include'
1229 libdir_default='${prefix}/lib'
1230 mandir_default='${prefix}/share/man'
1231 shlibdir_default="$libdir_default"
1232
1233 # toolchain
1234 ar="ar"
1235 cc_default="gcc"
1236 host_cc_default="gcc"
1237 ln_s="ln -sf"
1238 nm_default="nm"
1239 objformat="elf"
1240 ranlib="ranlib"
1241 strip="strip"
1242 yasmexe="yasm"
1243
1244 # machine
1245 arch=$(uname -m)
1246 cpu="generic"
1247
1248 # OS
1249 target_os=$(tolower $(uname -s))
1250 host_os=$target_os
1251
1252 # configurable options
1253 enable debug
1254 enable fastdiv
1255 enable ffmpeg
1256 enable ffplay
1257 enable ffserver
1258 enable ipv6
1259 enable mpegaudio_hp
1260 enable network
1261 enable optimizations
1262 enable protocols
1263 enable static
1264 enable stripping
1265 enable swscale_alpha
1266
1267 # build settings
1268 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1269 FFSERVERLDFLAGS=-Wl,-E
1270 LIBPREF="lib"
1271 LIBSUF=".a"
1272 FULLNAME='$(NAME)$(BUILDSUF)'
1273 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1274 SLIBPREF="lib"
1275 SLIBSUF=".so"
1276 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1277 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1278 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1279 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1280
1281 CC_O='-o $@'
1282
1283 host_cflags='-O3 -g -Wall'
1284 host_libs='-lm'
1285
1286 target_path='.'
1287
1288 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1289 # full relative path for objects in subdirectories for non-recursive Make.
1290 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1291 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1292
1293 # find source path
1294 source_path="$(dirname "$0")"
1295 enable source_path_used
1296 if test -z "$source_path" -o "$source_path" = "." ; then
1297 source_path="$(pwd)"
1298 disable source_path_used
1299 else
1300 source_path="$(cd "$source_path"; pwd)"
1301 echo "$source_path" | grep -q '[[:blank:]]' &&
1302 die "Out of tree builds are impossible with whitespace in source path."
1303 test -e "$source_path/config.h" &&
1304 die "Out of tree builds are impossible with config.h in source dir."
1305 fi
1306
1307 for v in "$@"; do
1308 r=${v#*=}
1309 l=${v%"$r"}
1310 r=$(sh_quote "$r")
1311 FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1312 done
1313
1314 find_things(){
1315 thing=$1
1316 pattern=$2
1317 file=$source_path/$3
1318 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1319 }
1320
1321 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
1322 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
1323 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
1324 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
1325 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
1326 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
1327 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
1328 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
1329 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
1330 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1331 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
1332
1333 enable $ARCH_EXT_LIST \
1334 $DECODER_LIST \
1335 $ENCODER_LIST \
1336 $HWACCEL_LIST \
1337 $PARSER_LIST \
1338 $BSF_LIST \
1339 $DEMUXER_LIST \
1340 $MUXER_LIST \
1341 $FILTER_LIST \
1342 $PROTOCOL_LIST \
1343 $INDEV_LIST \
1344 $OUTDEV_LIST \
1345
1346 die_unknown(){
1347 echo "Unknown option \"$1\"."
1348 echo "See $0 --help for available options."
1349 exit 1
1350 }
1351
1352 show_list() {
1353 suffix=_$1
1354 shift
1355 echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1356 exit 0
1357 }
1358
1359 for opt do
1360 optval="${opt#*=}"
1361 case "$opt" in
1362 --extra-ldflags=*) add_ldflags $optval
1363 ;;
1364 --extra-libs=*) add_extralibs $optval
1365 ;;
1366 --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1367 ;;
1368 --enable-debug=*) debuglevel="$optval"
1369 ;;
1370 --enable-*=*|--disable-*=*)
1371 eval $(echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/')
1372 case "$thing" in
1373 encoder|decoder|hwaccel|muxer|demuxer|indev|outdev|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
1374 *) die_unknown "$opt" ;;
1375 esac
1376 ;;
1377 --enable-?*|--disable-?*)
1378 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1379 if is_in $option $COMPONENT_LIST; then
1380 test $action = disable && action=unset
1381 eval $action \$$(toupper ${option%s})_LIST
1382 elif is_in $option $CMDLINE_SELECT; then
1383 $action $option
1384 else
1385 die_unknown $opt
1386 fi
1387 ;;
1388 --list-*)
1389 NAME="${opt#--list-}"
1390 is_in $NAME $COMPONENT_LIST || die_unknown $opt
1391 NAME=${NAME%s}
1392 eval show_list $NAME \$$(toupper $NAME)_LIST
1393 ;;
1394 --help|-h) show_help
1395 ;;
1396 *)
1397 optname="${opt%%=*}"
1398 optname="${optname#--}"
1399 optname=$(echo "$optname" | sed 's/-/_/g')
1400 is_in $optname $CMDLINE_SET || die_unknown $opt
1401 eval $optname='$optval'
1402 ;;
1403 esac
1404 done
1405
1406 disabled logging && logfile=/dev/null
1407
1408 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1409 set >> $logfile
1410
1411 test -n "$cross_prefix" && enable cross_compile
1412
1413 ar="${cross_prefix}${ar}"
1414 cc_default="${cross_prefix}${cc_default}"
1415 nm_default="${cross_prefix}${nm_default}"
1416 ranlib="${cross_prefix}${ranlib}"
1417 strip="${cross_prefix}${strip}"
1418
1419 sysinclude_default="${sysroot}/usr/include"
1420
1421 set_default cc nm sysinclude
1422 enabled cross_compile || host_cc_default=$cc
1423 set_default host_cc
1424
1425 exesuf() {
1426 case $1 in
1427 mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1428 esac
1429 }
1430
1431 EXESUF=$(exesuf $target_os)
1432 HOSTEXESUF=$(exesuf $host_os)
1433
1434 # set temporary file name
1435 : ${TMPDIR:=$TEMPDIR}
1436 : ${TMPDIR:=$TMP}
1437 : ${TMPDIR:=/tmp}
1438
1439 if ! check_cmd type mktemp; then
1440 # simple replacement for missing mktemp
1441 # NOT SAFE FOR GENERAL USE
1442 mktemp(){
1443 echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1444 }
1445 fi
1446
1447 tmpfile(){
1448 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1449 (set -C; exec > $tmp) 2>/dev/null ||
1450 die "Unable to create temoporary file in $TMPDIR."
1451 append TMPFILES $tmp
1452 eval $1=$tmp
1453 }
1454
1455 trap 'rm -f -- $TMPFILES' EXIT
1456 trap exit HUP INT TERM
1457
1458 tmpfile TMPC .c
1459 tmpfile TMPE $EXESUF
1460 tmpfile TMPH .h
1461 tmpfile TMPO .o
1462 tmpfile TMPS .S
1463 tmpfile TMPSH .sh
1464
1465 unset -f mktemp
1466
1467 # make sure we can execute files in $TMPDIR
1468 cat > $TMPSH 2>> $logfile <<EOF
1469 #! /bin/sh
1470 EOF
1471 chmod +x $TMPSH >> $logfile 2>&1
1472 if ! $TMPSH >> $logfile 2>&1; then
1473 cat <<EOF
1474 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
1475 variable to another directory and make sure that it is not mounted noexec.
1476 EOF
1477 die "Sanity test failed."
1478 fi
1479
1480 filter_cflags=echo
1481 filter_cppflags=echo
1482 filter_asflags=echo
1483
1484 if $cc --version 2>/dev/null | grep -qi gcc; then
1485 cc_type=gcc
1486 elif $cc --version 2>/dev/null | grep -q Intel; then
1487 cc_type=icc
1488 elif $cc -v 2>&1 | grep -q xlc; then
1489 cc_type=xlc
1490 elif $cc -V 2>/dev/null | grep -q Compaq; then
1491 cc_type=ccc
1492 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1493 debuglevel=3
1494 add_ldflags -Wl,-z,now # calls to libots crash without this
1495 elif $cc --vsn 2>/dev/null | grep -q RVCT; then
1496 test -d "$sysroot" || die "No valid sysroot specified."
1497 cc_type=armcc
1498 armcc_conf="$PWD/armcc.conf"
1499 $cc --arm_linux_configure \
1500 --arm_linux_config_file="$armcc_conf" \
1501 --configure_sysroot="$sysroot" \
1502 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1503 die "Error creating armcc configuration file."
1504 cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1505 as_default="${cross_prefix}gcc"
1506 fi
1507
1508 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1509
1510 : ${as_default:=$cc}
1511 : ${dep_cc_default:=$cc}
1512 : ${ld_default:=$cc}
1513 set_default as dep_cc ld
1514
1515 add_cflags $extra_cflags
1516 add_asflags $extra_cflags
1517
1518 if test -n "$sysroot"; then
1519 case "$cc_type" in
1520 gcc)
1521 add_cppflags --sysroot="$sysroot"
1522 add_ldflags --sysroot="$sysroot"
1523 ;;
1524 esac
1525 fi
1526
1527 # compiler sanity check
1528 check_exec <<EOF
1529 int main(void){ return 0; }
1530 EOF
1531 if test "$?" != 0; then
1532 echo "$cc is unable to create an executable file."
1533 if test -z "$cross_prefix" && ! enabled cross_compile ; then
1534 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1535 echo "Only do this if you know what cross compiling means."
1536 fi
1537 die "C compiler test failed."
1538 fi
1539
1540 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1541 check_cflags -std=c99
1542 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
1543 #include <stdlib.h>
1544 EOF
1545 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
1546 #include <stdlib.h>
1547 EOF
1548
1549 case "$arch" in
1550 alpha)
1551 arch="alpha"
1552 enable fast_64bit
1553 check_cflags -mieee
1554 ;;
1555 arm|armv[4567]*l)
1556 arch="arm"
1557 ;;
1558 avr32)
1559 ;;
1560 bfin)
1561 arch="bfin"
1562 ;;
1563 ia64)
1564 arch="ia64"
1565 enable fast_64bit
1566 ;;
1567 m68k)
1568 arch="m68k"
1569 ;;
1570 mips|mipsel|IP*)
1571 arch="mips"
1572 ;;
1573 mips64)
1574 arch="mips"
1575 subarch="mips64"
1576 enable fast_64bit
1577 ;;
1578 parisc|hppa)
1579 arch="parisc"
1580 ;;
1581 parisc64|hppa64)
1582 arch="parisc"
1583 enable fast_64bit
1584 ;;
1585 "Power Macintosh"|ppc|powerpc)
1586 arch="ppc"
1587 enable fast_unaligned
1588 ;;
1589 ppc64)
1590 arch="ppc"
1591 subarch="ppc64"
1592 enable fast_64bit
1593 enable fast_unaligned
1594 ;;
1595 s390|s390x)
1596 arch="s390"
1597 ;;
1598 sh4|sh)
1599 arch="sh4"
1600 ;;
1601 sparc)
1602 arch="sparc"
1603 ;;
1604 sun4u|sparc64)
1605 arch="sparc"
1606 subarch="sparc64"
1607 enable fast_64bit
1608 ;;
1609 i386|i486|i586|i686|i86pc|BePC)
1610 arch="x86"
1611 subarch="x86_32"
1612 enable fast_unaligned
1613 ;;
1614 x86_64|amd64)
1615 arch="x86"
1616 subarch="x86_32"
1617 enable cmov
1618 enable fast_cmov
1619 enable fast_unaligned
1620 check_cc <<EOF && enable fast_64bit && subarch="x86_64"
1621 int test[sizeof(char*) - 7];
1622 EOF
1623 ;;
1624 *)
1625 arch="unknown"
1626 ;;
1627 esac
1628
1629 enable $arch $subarch
1630
1631 # OS specific
1632 case $target_os in
1633 beos|haiku|zeta)
1634 prefix_default="$HOME/config"
1635 # helps building libavcodec
1636 add_cppflags -DPIC
1637 add_cflags -fomit-frame-pointer
1638 # 3 gcc releases known for BeOS, each with ugly bugs
1639 gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1640 case "$gcc_version" in
1641 2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1642 disable mmx
1643 ;;
1644 *20010315*) echo "BeBits gcc"
1645 add_cflags -fno-expensive-optimizations
1646 ;;
1647 esac
1648 SHFLAGS=-nostart
1649 # enable BeOS things
1650 enable audio_beos
1651 # no need for libm, but the inet stuff
1652 # Check for BONE
1653 # XXX: actually should check for NOT net_server
1654 if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1655 network_extralibs="-lbind -lsocket"
1656 else
1657 enable beos_netserver
1658 network_extralibs="-lnet"
1659 fi ;;
1660 sunos)
1661 FFSERVERLDFLAGS=""
1662 SHFLAGS='-shared -Wl,-h,$$(@F)'
1663 network_extralibs="-lsocket -lnsl"
1664 add_cppflags -D__EXTENSIONS__
1665 ;;
1666 netbsd)
1667 oss_indev_extralibs="-lossaudio"
1668 oss_outdev_extralibs="-lossaudio"
1669 ;;
1670 openbsd)
1671 disable need_memalign
1672 LIBOBJFLAGS='$(PIC)'
1673 SHFLAGS='-shared'
1674 oss_indev_extralibs="-lossaudio"
1675 oss_outdev_extralibs="-lossaudio"
1676 ;;
1677 freebsd|dragonfly)
1678 disable need_memalign
1679 ;;
1680 bsd/os)
1681 osextralibs="-lpoll -lgnugetopt"
1682 strip="strip -d"
1683 ;;
1684 darwin)
1685 disable need_memalign
1686 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1687 strip="strip -x"
1688 FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1689 SLIBSUF=".dylib"
1690 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1691 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1692 FFSERVERLDFLAGS=-Wl,-bind_at_load
1693 objformat="macho"
1694 enabled x86_64 && objformat="macho64"
1695 ;;
1696 mingw32*)
1697 target_os=mingw32
1698 LIBTARGET=i386
1699 if enabled x86_64; then
1700 disable need_memalign
1701 LIBTARGET=x64
1702 elif enabled arm; then
1703 LIBTARGET=arm
1704 fi
1705 shlibdir_default="$bindir_default"
1706 disable ffserver
1707 SLIBPREF=""
1708 SLIBSUF=".dll"
1709 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1710 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1711 SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1712 SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1713 install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
1714 install -d "$(LIBDIR)"; \
1715 install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
1716 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1717 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1718 objformat="win32"
1719 enable dos_paths
1720 check_cflags -fno-common
1721 if ! enabled x86_64; then
1722 check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1723 die "ERROR: MinGW runtime version must be >= 3.15."
1724 enabled_any avisynth vfwcap_demuxer &&
1725 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1726 die "ERROR: avisynth and vfwcap_demuxer require w32api version 3.13 or later."; }
1727 fi
1728 ;;
1729 cygwin*)
1730 target_os=cygwin
1731 shlibdir_default="$bindir_default"
1732 SLIBPREF="cyg"
1733 SLIBSUF=".dll"
1734 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1735 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1736 SHFLAGS='-shared -Wl,--enable-auto-image-base'
1737 objformat="win32"
1738 enable dos_paths
1739 check_cflags -fno-common
1740 ;;
1741 *-dos|freedos|opendos)
1742 disable ffplay ffserver
1743 disable $INDEV_LIST $OUTDEV_LIST
1744 network_extralibs="-lsocket"
1745 objformat="coff"
1746 enable dos_paths
1747 ;;
1748 linux)
1749 enable dv1394
1750 ;;
1751 irix*)
1752 target_os=irix
1753 ranlib="echo ignoring ranlib"
1754 ;;
1755 os/2*)
1756 strip="lxlite"
1757 ln_s="cp -f"
1758 FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1759 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1760 FFSERVERLDFLAGS=""
1761 LIBSUF="_s.a"
1762 SLIBPREF=""
1763 SLIBSUF=".dll"
1764 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1765 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1766 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1767 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1768 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1769 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1770 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1771 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1772 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1773 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1774 SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1775 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1776 enable dos_paths
1777 ;;
1778 gnu/kfreebsd)
1779 ;;
1780 gnu)
1781 ;;
1782
1783 *)
1784 die "Unknown OS '$target_os'."
1785 ;;
1786 esac
1787
1788 set_default $PATHS_LIST
1789
1790 add_extralibs $osextralibs
1791
1792 # Combine FFLDFLAGS and the LDFLAGS environment variable.
1793 LDFLAGS="$FFLDFLAGS $LDFLAGS"
1794
1795 # we need to build at least one lib type
1796 if ! enabled_any static shared; then
1797 cat <<EOF
1798 At least one library type must be built.
1799 Specify --enable-static to build the static libraries or --enable-shared to
1800 build the shared libraries as well. To only build the shared libraries specify
1801 --disable-static in addition to --enable-shared.
1802 EOF
1803 exit 1;
1804 fi
1805
1806 disabled static && LIBNAME=""
1807
1808 if enabled_any libfaad libfaadbin ; then
1809 if check_header faad.h; then
1810 check_cc <<EOF
1811 #include <faad.h>
1812 #ifndef FAAD2_VERSION
1813 ok faad1
1814 #endif
1815 int main(void) { return 0; }
1816 EOF
1817 test $? = 0 && enable libfaad2
1818 else
1819 die "FAAD test failed."
1820 fi
1821 fi
1822
1823
1824 die_license_disabled() {
1825 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
1826 }
1827
1828 die_license_disabled gpl libfaad2
1829 die_license_disabled gpl libx264
1830 die_license_disabled gpl libxvid
1831 die_license_disabled gpl postproc
1832 die_license_disabled gpl x11grab
1833
1834 die_license_disabled nonfree libfaac
1835
1836 die_license_disabled version3 libopencore_amrnb
1837 die_license_disabled version3 libopencore_amrwb
1838
1839 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
1840
1841 check_deps $ARCH_EXT_LIST
1842
1843 test -z "$need_memalign" && need_memalign="$mmx"
1844
1845 #Darwin CC versions
1846 if test $target_os = darwin; then
1847 if enabled xlc; then
1848 add_cflags -qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto
1849 else
1850 add_cflags -pipe
1851 check_cflags -force_cpusubtype_ALL
1852 check_cflags -Wno-sign-compare
1853 enabled shared || check_cflags -mdynamic-no-pic
1854 fi
1855 fi
1856
1857 disabled optimizations || check_cflags -fomit-frame-pointer
1858
1859 # Add processor-specific flags
1860 if test $cpu != "generic"; then
1861 warn_altivec(){
1862 $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1863 }
1864 case $cpu in
1865 601|ppc601|PowerPC601)
1866 cpuflags="-mcpu=601"
1867 warn_altivec enabled PPC601
1868 ;;
1869 603*|ppc603*|PowerPC603*)
1870 cpuflags="-mcpu=603"
1871 warn_altivec enabled PPC603
1872 ;;
1873 604*|ppc604*|PowerPC604*)
1874 cpuflags="-mcpu=604"
1875 warn_altivec enabled PPC604
1876 ;;
1877 G3|g3|75*|ppc75*|PowerPC75*)
1878 cpuflags="-mcpu=750 -mpowerpc-gfxopt"
1879 warn_altivec enabled PPC75x
1880 ;;
1881 G4|g4|745*|ppc745*|PowerPC745*)
1882 cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
1883 warn_altivec disabled PPC745x
1884 ;;
1885 74*|ppc74*|PowerPC74*)
1886 cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
1887 warn_altivec disabled PPC74xx
1888 ;;
1889 G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1890 cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1891 warn_altivec disabled PPC970
1892 ;;
1893 Cell|CELL|cell)
1894 cpuflags="-mcpu=cell"
1895 warn_altivec disabled Cell
1896 enable ldbrx
1897 ;;
1898 # targets that do NOT support conditional mov (cmov)
1899 i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1900 cpuflags="-march=$cpu"
1901 disable cmov
1902 ;;
1903 # targets that do support conditional mov (cmov)
1904 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1905 cpuflags="-march=$cpu"
1906 enable cmov
1907 enable fast_cmov
1908 ;;
1909 # targets that do support conditional mov but on which it's slow
1910 pentium4|pentium4m|prescott|nocona)
1911 cpuflags="-march=$cpu"
1912 enable cmov
1913 disable fast_cmov
1914 ;;
1915 sparc64)
1916 cpuflags="-mcpu=v9"
1917 ;;
1918 arm11*|cortex*)
1919 cpuflags="-mcpu=$cpu"
1920 enable fast_unaligned
1921 ;;
1922 armv[67]*)
1923 cpuflags="-march=$cpu"
1924 enable fast_unaligned
1925 ;;
1926 armv*)
1927 cpuflags="-march=$cpu"
1928 ;;
1929 arm*)
1930 cpuflags="-mcpu=$cpu"
1931 ;;
1932 ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1933 enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
1934 ;;
1935 bf*)
1936 cpuflags="-mcpu=$cpu"
1937 ;;
1938 mips*|[45]k*|[237]4k*|m4k|r*000|loongson2[ef])
1939 cpuflags="-march=$cpu"
1940 ;;
1941 *)
1942 echo "WARNING: Unknown CPU \"$cpu\", ignored."
1943 ;;
1944 esac
1945 fi
1946
1947 add_cflags $cpuflags
1948 add_asflags $cpuflags
1949
1950 check_cc <<EOF || die "Symbol mangling check failed."
1951 int ff_extern;
1952 EOF
1953 sym=$($nm -P -g $TMPO | grep ff_extern)
1954 extern_prefix=${sym%%ff_extern*}
1955
1956 check_cc <<EOF && enable inline_asm
1957 void foo(void) { __asm__ volatile ("" ::); }
1958 EOF
1959
1960 if enabled x86; then
1961 # check whether EBP is available on x86
1962 # As 'i' is stored on the stack, this program will crash
1963 # if the base pointer is used to access it because the
1964 # base pointer is cleared in the inline assembly code.
1965 check_exec_crash <<EOF && enable ebp_available
1966 volatile int i=0;
1967 __asm__ volatile (
1968 "xorl %%ebp, %%ebp"
1969 ::: "%ebp");
1970 return i;
1971 EOF
1972
1973 # check wether EBX is available on x86
1974 check_asm ebx_available '"":::"%ebx"'
1975
1976 # check whether more than 10 operands are supported
1977 check_cc <<EOF && enable ten_operands
1978 int main(void) {
1979 int x=0;
1980 __asm__ volatile(
1981 ""
1982 :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
1983 );
1984 return 0;
1985 }
1986 EOF
1987
1988 # check whether binutils is new enough to compile SSSE3/MMX2
1989 enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
1990 enabled mmx2 && check_asm mmx2 '"pmaxub %mm0, %mm1"'
1991
1992 check_asm bswap '"bswap %%eax" ::: "%eax"'
1993
1994 YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
1995 enabled x86_64 && append YASMFLAGS "-m amd64"
1996 enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
1997 case "$objformat" in
1998 elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
1999 macho64) append YASMFLAGS "-DPIC -DPREFIX" ;;
2000 *) append YASMFLAGS "-DPREFIX" ;;
2001 esac
2002 disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
2003 fi
2004
2005 # check for assembler specific support
2006
2007 enabled mips && check_asm loongson '"dmult.g $1, $2, $3"'
2008
2009 enabled ppc && check_asm dcbzl '"dcbzl 0, 1"'
2010 enabled ppc && check_asm ppc4xx '"maclhw r10, r11, r12"'
2011 enabled ppc && check_asm xform_asm '"lwzx 0, %y0" :: "Z"(*(int*)0)'
2012
2013 # check for SIMD availability
2014
2015 # AltiVec flags: The FSF version of GCC differs from the Apple version
2016 if enabled altivec; then
2017 check_cflags -maltivec -mabi=altivec &&
2018 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2019 check_cflags -faltivec
2020
2021 # check if our compiler supports Motorola AltiVec C API
2022 check_cc <<EOF || disable altivec
2023 $inc_altivec_h
2024 int main(void) {
2025 vector signed int v1, v2, v3;
2026 v1 = vec_add(v2,v3);
2027 return 0;
2028 }
2029 EOF
2030
2031 # check if our compiler supports braces for vector declarations
2032 check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2033 $inc_altivec_h
2034 int main (void) { (vector int) {1}; return 0; }
2035 EOF
2036 fi
2037
2038 # We have to check if pld is a nop and disable it.
2039 enabled arm && check_asm pld '"pld [r0]"'
2040 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2041 enabled armv6 && check_asm armv6 '"sadd16 r0, r0, r0"'
2042 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2043 enabled armvfp && check_asm armvfp '"fadds s0, s0, s0"'
2044 enabled iwmmxt && check_asm iwmmxt '"wunpckelub wr6, wr4"'
2045 enabled mmi && check_asm mmi '"lq $2, 0($2)"'
2046 enabled neon && check_asm neon '"vadd.i16 q0, q0, q0"'
2047 enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc
2048
2049 enabled vis && add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2050
2051 # ---
2052 # big/little-endian test
2053 check_cc <<EOF || die "endian test failed"
2054 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2055 EOF
2056 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2057
2058 # ---
2059 # check availability of some header files
2060
2061 if check_func dlopen; then
2062 ldl=
2063 elif check_func dlopen -ldl; then
2064 ldl=-ldl
2065 fi
2066
2067 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2068 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2069
2070 check_func fork
2071 check_func gethrtime
2072 check_func getrusage
2073 check_func inet_aton $network_extralibs
2074 check_func memalign
2075 check_func mkstemp
2076 check_func posix_memalign
2077 check_func_headers io.h setmode
2078 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2079 check_func_headers windows.h GetProcessTimes
2080 check_func_headers windows.h VirtualAlloc
2081
2082 check_header conio.h
2083 check_header dlfcn.h
2084 check_header malloc.h
2085 check_header poll.h
2086 check_header sys/mman.h
2087 check_header sys/resource.h
2088 check_header sys/select.h
2089 check_header termios.h
2090 check_header vdpau/vdpau.h
2091 check_header vdpau/vdpau_x11.h
2092 check_header X11/extensions/XvMClib.h
2093
2094 if ! enabled_any memalign memalign_hack posix_memalign && enabled need_memalign ; then
2095 die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2096 fi
2097
2098 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
2099 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2100
2101 # check for some common methods of building with pthread support
2102 # do this before the optional library checks as some of them require pthreads
2103 if enabled pthreads; then
2104 if check_func pthread_create; then
2105 :
2106 elif check_func pthread_create -pthread; then
2107 add_cflags -pthread
2108 add_extralibs -pthread
2109 elif check_func pthread_create -pthreads; then
2110 add_cflags -pthreads
2111 add_extralibs -pthreads
2112 elif check_func pthread_create -lpthreadGC2; then
2113 add_extralibs -lpthreadGC2
2114 elif ! check_lib pthread.h pthread_create -lpthread; then
2115 die "ERROR: can't find pthreads library"
2116 fi
2117 fi
2118
2119 for thread in $THREADS_LIST; do
2120 if enabled $thread; then
2121 test -n "$thread_type" &&
2122 die "ERROR: Only one thread type must be selected." ||
2123 thread_type="$thread"
2124 fi
2125 done
2126
2127 check_lib math.h sin -lm
2128 check_lib va/va.h vaInitialize -lva
2129
2130 # test for C99 functions in math.h
2131 for func in llrint log2 lrint lrintf round roundf truncf; do
2132 check_exec <<EOF && enable $func || disable $func
2133 #include <math.h>
2134 int main(void) { return ($func(3.999f) > 0)?0:1; }
2135 EOF
2136 done
2137
2138 # these are off by default, so fail if requested and not available
2139 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2140 enabled libdirac && add_cflags $(pkg-config --cflags dirac) &&
2141 require libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
2142 require libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
2143 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2144 enabled libfaad && require2 libfaad faad.h faacDecOpen -lfaad
2145 enabled libgsm && require libgsm gsm.h gsm_create -lgsm
2146 enabled libmp3lame && require libmp3lame lame/lame.h lame_init -lmp3lame -lm
2147 enabled libnut && require libnut libnut.h nut_demuxer_init -lnut
2148 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2149 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2150 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2151 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2152 require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2153 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
2154 enabled libtheora && require libtheora theora/theora.h theora_info_init -ltheora -logg
2155 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2156 enabled libx264 && require libx264 x264.h x264_encoder_open -lx264 -lm &&
2157 { check_cpp_condition x264.h "X264_BUILD >= 65" ||
2158 die "ERROR: libx264 version must be >= 0.65."; }
2159 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
2160 enabled mlib && require mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2161
2162 # libdc1394 check
2163 if enabled libdc1394; then
2164 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2165 enable libdc1394_2; } ||
2166 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2167 enable libdc1394_1; } ||
2168 die "ERROR: No version of libdc1394 found "
2169 fi
2170
2171
2172 _restrict=
2173 for restrict_keyword in restrict __restrict__ __restrict; do
2174 check_cc <<EOF && _restrict=$restrict_keyword && break
2175 void foo(char * $restrict_keyword p);
2176 EOF
2177 done
2178
2179 ##########################################
2180 # SDL check
2181
2182 disable sdl_too_old
2183 disable sdl
2184 SDL_CONFIG="${cross_prefix}sdl-config"
2185 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2186 sdl_cflags=$("${SDL_CONFIG}" --cflags)
2187 temp_cflags $sdl_cflags
2188 temp_extralibs $("${SDL_CONFIG}" --libs)
2189 if check_lib2 SDL.h SDL_Init; then
2190 _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2191 if test "$_sdlversion" -lt 121 ; then
2192 enable sdl_too_old
2193 else
2194 enable sdl
2195 check_cc $sdl_cflags <<EOF && enable sdl_video_size
2196 #include <SDL.h>
2197 int main(int argc, char **argv){
2198 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2199 int w = vi->current_w;
2200 return 0;
2201 }
2202 EOF
2203 fi
2204 fi
2205 restore_flags
2206 fi
2207
2208 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2209
2210 ##########################################
2211 # Network check
2212
2213 if enabled network; then
2214 check_type "sys/types.h sys/socket.h" socklen_t
2215 # Prefer arpa/inet.h over winsock2
2216 if check_header arpa/inet.h ; then
2217 check_func closesocket
2218 elif check_header winsock2.h ; then
2219 network_extralibs="-lws2_32"
2220 check_type ws2tcpip.h socklen_t
2221 check_func_headers winsock2.h closesocket
2222 else
2223 disable network
2224 fi
2225 fi
2226
2227 ##########################################
2228 # IPv6 check
2229
2230 enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
2231 #include <sys/types.h>
2232 #include <sys/socket.h>
2233 #include <netinet/in.h>
2234 #include <netdb.h>
2235 int main(void) {
2236 struct sockaddr_storage saddr;
2237 struct ipv6_mreq mreq6;
2238 getaddrinfo(0,0,0,0);
2239 getnameinfo(0,0,0,0,0,0,0);
2240 IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2241 }
2242 EOF
2243
2244 check_header linux/videodev.h
2245 check_header linux/videodev2.h
2246 check_header sys/videoio.h
2247
2248 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2249
2250 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2251 { check_header dev/bktr/ioctl_meteor.h &&
2252 check_header dev/bktr/ioctl_bt848.h; } ||
2253 { check_header machine/ioctl_meteor.h &&
2254 check_header machine/ioctl_bt848.h; } ||
2255 { check_header dev/video/meteor/ioctl_meteor.h &&
2256 check_header dev/video/bktr/ioctl_bt848.h; } ||
2257 check_header dev/ic/bt8xx.h
2258
2259 check_header sys/soundcard.h
2260 check_header soundcard.h
2261
2262 enabled alsa_demuxer || enabled alsa_muxer && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2263
2264 enabled jack_demuxer && check_lib2 jack/jack.h jack_client_open -ljack
2265
2266 # deal with the X11 frame grabber
2267 enabled x11grab &&
2268 check_header X11/Xlib.h &&
2269 check_header X11/extensions/XShm.h &&
2270 check_func XOpenDisplay -lX11 &&
2271 check_func XShmCreateImage -lX11 -lXext
2272
2273 enabled debug && add_cflags -g"$debuglevel"
2274
2275 # add some useful compiler flags if supported
2276 check_cflags -Wdeclaration-after-statement
2277 check_cflags -Wall
2278 check_cflags -Wno-switch
2279 check_cflags -Wdisabled-optimization
2280 check_cflags -Wpointer-arith
2281 check_cflags -Wredundant-decls
2282 check_cflags -Wno-pointer-sign
2283 check_cflags -Wcast-qual
2284 check_cflags -Wwrite-strings
2285 check_cflags -Wtype-limits
2286 check_cflags -Wundef
2287 enabled extra_warnings && check_cflags -Winline
2288
2289 # add some linker flags
2290 check_ldflags -Wl,--warn-common
2291 check_ldflags -Wl,--as-needed
2292 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'
2293 check_ldflags -Wl,-Bsymbolic
2294
2295 if enabled small; then
2296 check_cflags -Os # not all compilers support -Os
2297 optimizations="small"
2298 elif enabled optimizations; then
2299 if enabled xlc; then
2300 add_cflags -O5
2301 add_ldflags -O5
2302 elif enabled ccc; then
2303 add_cflags -fast
2304 else
2305 add_cflags -O3
2306 fi
2307 fi
2308 check_cflags -fno-math-errno
2309 check_cflags -fno-signed-zeros
2310
2311 # add some flags for Intel C Compiler
2312 if enabled icc; then
2313 # Just warnings, no remarks
2314 check_cflags -w1
2315 # -wd: Disable following warnings
2316 # 144, 167, 556: -Wno-pointer-sign
2317 # 10006: ignoring unknown option -fno-signed-zeros
2318 # 10156: ignoring option '-W'; no argument required
2319 check_cflags -wd144,167,556,10006,10156
2320 # 11030: Warning unknown option --as-needed
2321 # 10156: ignoring option '-export'; no argument required
2322 check_ldflags -wd10156,11030
2323 # Allow to compile with optimizations
2324 check_ldflags -march=$cpu
2325 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2326 enable ebp_available
2327 elif enabled ccc; then
2328 # disable some annoying warnings
2329 add_cflags -msg_disable cvtu32to64
2330 add_cflags -msg_disable embedcomment
2331 add_cflags -msg_disable needconstext
2332 add_cflags -msg_disable nomainieee
2333 add_cflags -msg_disable ptrmismatch1
2334 add_cflags -msg_disable unreachcode
2335 fi
2336
2337 # PIC flags for shared library objects where they are needed
2338 if enabled shared; then
2339 # LIBOBJFLAGS may have already been set in the OS configuration
2340 if test -z "$LIBOBJFLAGS" ; then
2341 case "${subarch-$arch}" in
2342 x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
2343 esac
2344 fi
2345 fi
2346
2347 if enabled gprof; then
2348 add_cflags -p
2349 add_ldflags -p
2350 fi
2351
2352 # Find out if the .align argument is a power of two or not.
2353 check_asm asmalign_pot '".align 3"'
2354
2355 enabled_any $DECODER_LIST && enable decoders
2356 enabled_any $ENCODER_LIST && enable encoders
2357 enabled_any $HWACCEL_LIST && enable hwaccels
2358 enabled_any $BSF_LIST && enable bsfs
2359 enabled_any $DEMUXER_LIST && enable demuxers
2360 enabled_any $MUXER_LIST && enable muxers
2361 enabled_any $FILTER_LIST && enable filters
2362 enabled_any $INDEV_LIST && enable demuxers
2363 enabled_any $OUTDEV_LIST && enable muxers
2364 enabled_any $PROTOCOL_LIST && enable protocols
2365
2366 enabled_any $THREADS_LIST && enable threads
2367
2368 check_deps $CONFIG_LIST \
2369 $CONFIG_EXTRA \
2370 $HAVE_LIST \
2371 $DECODER_LIST \
2372 $ENCODER_LIST \
2373 $HWACCEL_LIST \
2374 $PARSER_LIST \
2375 $BSF_LIST \
2376 $DEMUXER_LIST \
2377 $MUXER_LIST \
2378 $FILTER_LIST \
2379 $INDEV_LIST \
2380 $OUTDEV_LIST \
2381 $PROTOCOL_LIST \
2382
2383 echo "install prefix $prefix"
2384 echo "source path $source_path"
2385 echo "C compiler $cc"
2386 echo ".align is power-of-two $asmalign_pot"
2387 echo "ARCH $arch ($cpu)"
2388 if test "$build_suffix" != ""; then
2389 echo "build suffix $build_suffix"
2390 fi
2391 if test "$extra_version" != ""; then
2392 echo "version string suffix $extra_version"
2393 fi
2394 echo "big-endian ${bigendian-no}"
2395 echo "runtime cpu detection ${runtime_cpudetect-no}"
2396 if enabled x86; then
2397 echo "yasm ${yasm-no}"
2398 echo "MMX enabled ${mmx-no}"
2399 echo "MMX2 enabled ${mmx2-no}"
2400 echo "3DNow! enabled ${amd3dnow-no}"
2401 echo "3DNow! extended enabled ${amd3dnowext-no}"
2402 echo "SSE enabled ${sse-no}"
2403 echo "SSSE3 enabled ${ssse3-no}"
2404 echo "CMOV enabled ${cmov-no}"
2405 echo "CMOV is fast ${fast_cmov-no}"
2406 echo "EBX available ${ebx_available-no}"
2407 echo "EBP available ${ebp_available-no}"
2408 echo "10 operands supported ${ten_operands-no}"
2409 fi
2410 if enabled arm; then
2411 echo "ARMv5TE enabled ${armv5te-no}"
2412 echo "ARMv6 enabled ${armv6-no}"
2413 echo "ARMv6T2 enabled ${armv6t2-no}"
2414 echo "ARM VFP enabled ${armvfp-no}"
2415 echo "IWMMXT enabled ${iwmmxt-no}"
2416 echo "NEON enabled ${neon-no}"
2417 fi
2418 if enabled mips; then
2419 echo "MMI enabled ${mmi-no}"
2420 fi
2421 if enabled ppc; then
2422 echo "AltiVec enabled ${altivec-no}"
2423 echo "PPC 4xx optimizations ${ppc4xx-no}"
2424 echo "dcbzl available ${dcbzl-no}"
2425 echo "performance report ${powerpc_perf-no}"
2426 fi
2427 if enabled sparc; then
2428 echo "VIS enabled ${vis-no}"
2429 fi
2430 echo "gprof enabled ${gprof-no}"
2431 echo "debug symbols ${debug-no}"
2432 echo "strip symbols ${stripping-no}"
2433 echo "optimizations ${optimizations-no}"
2434 echo "static ${static-no}"
2435 echo "shared ${shared-no}"
2436 echo "postprocessing support ${postproc-no}"
2437 echo "new filter support ${avfilter-no}"
2438 echo "filters using lavformat ${avfilter_lavf-no}"
2439 echo "network support ${network-no}"
2440 if enabled network; then
2441 echo "IPv6 support ${ipv6-no}"
2442 fi
2443 echo "threading support ${thread_type-no}"
2444 echo "SDL support ${sdl-no}"
2445 if enabled sdl_too_old; then
2446 echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2447 fi
2448 echo "Sun medialib support ${mlib-no}"
2449 echo "AVISynth enabled ${avisynth-no}"
2450 echo "libdc1394 support ${libdc1394-no}"
2451 echo "libdirac enabled ${libdirac-no}"
2452 echo "libfaac enabled ${libfaac-no}"
2453 echo "libfaad enabled ${libfaad-no}"
2454 echo "libfaad dlopened ${libfaadbin-no}"
2455 echo "libgsm enabled ${libgsm-no}"
2456 echo "libmp3lame enabled ${libmp3lame-no}"
2457 echo "libnut enabled ${libnut-no}"
2458 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2459 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2460 echo "libopenjpeg enabled ${libopenjpeg-no}"
2461 echo "libschroedinger enabled ${libschroedinger-no}"
2462 echo "libspeex enabled ${libspeex-no}"
2463 echo "libtheora enabled ${libtheora-no}"
2464 echo "libvorbis enabled ${libvorbis-no}"
2465 echo "libx264 enabled ${libx264-no}"
2466 echo "libxvid enabled ${libxvid-no}"
2467 echo "zlib enabled ${zlib-no}"
2468 echo "bzlib enabled ${bzlib-no}"
2469 echo
2470
2471 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2472 echo "Enabled ${type}s:"
2473 eval list=\$$(toupper $type)_LIST
2474 for part in $list; do
2475 enabled $part && echo ${part%_*}
2476 done | sort | pr -3 -t
2477 echo
2478 done
2479
2480 license="LGPL version 2.1 or later"
2481 if enabled nonfree; then
2482 license="nonfree and unredistributable"
2483 elif enabled gplv3; then
2484 license="GPL version 3 or later"
2485 elif enabled lgplv3; then
2486 license="LGPL version 3 or later"
2487 elif enabled gpl; then
2488 license="GPL version 2 or later"
2489 fi
2490
2491 echo "License: $license"
2492
2493 echo "Creating config.mak and config.h..."
2494
2495 echo "# Automatically generated by configure - do not modify!" > config.mak
2496 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2497 echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2498 echo "#define FFMPEG_CONFIG_H" >> $TMPH
2499 echo "#define FFMPEG_CONFIGURATION \"$(c_escape $FFMPEG_CONFIGURATION)\"" >> $TMPH
2500 echo "#define FFMPEG_DATADIR \"$(eval c_escape $datadir)\"" >> $TMPH
2501
2502 echo "ifndef FFMPEG_CONFIG_MAK" >> config.mak
2503 echo "FFMPEG_CONFIG_MAK=1" >> config.mak
2504
2505 echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2506 echo "prefix=$prefix" >> config.mak
2507 echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2508 echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2509 echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2510 echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2511 echo "DATADIR=\$(DESTDIR)$datadir" >> config.mak
2512 echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2513 echo "SRC_PATH=\"$source_path\"" >> config.mak
2514 echo "SRC_PATH_BARE=$source_path" >> config.mak
2515 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2516 echo "CC=$cc" >> config.mak
2517 echo "AS=$as" >> config.mak
2518 echo "LD=$ld" >> config.mak
2519 echo "DEPCC=$dep_cc" >> config.mak
2520 echo "YASM=$yasmexe" >> config.mak
2521 echo "AR=$ar" >> config.mak
2522 echo "RANLIB=$ranlib" >> config.mak
2523 echo "LN_S=$ln_s" >> config.mak
2524 enabled stripping &&
2525 echo "STRIP=$strip" >> config.mak ||
2526 echo "STRIP=echo ignoring strip" >> config.mak
2527
2528 echo "CPPFLAGS=$CPPFLAGS" >> config.mak
2529 echo "CFLAGS=$CFLAGS" >> config.mak
2530 echo "ASFLAGS=$ASFLAGS" >> config.mak
2531 echo "CC_O=$CC_O" >> config.mak
2532 echo "LDFLAGS=$LDFLAGS" >> config.mak
2533 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2534 echo "SHFLAGS=$SHFLAGS" >> config.mak
2535 echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2536 echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
2537 echo "BUILD_STATIC=$static" >> config.mak
2538 echo "BUILDSUF=$build_suffix" >> config.mak
2539 echo "FULLNAME=$FULLNAME" >> config.mak
2540 echo "LIBPREF=$LIBPREF" >> config.mak
2541 echo "LIBSUF=$LIBSUF" >> config.mak
2542 echo "LIBNAME=$LIBNAME" >> config.mak
2543 echo "SLIBPREF=$SLIBPREF" >> config.mak
2544 echo "SLIBSUF=$SLIBSUF" >> config.mak
2545 echo "EXESUF=$EXESUF" >> config.mak
2546 echo "EXTRA_VERSION=$extra_version" >> config.mak
2547 echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
2548 echo "DEPFLAGS=$DEPFLAGS" >> config.mak
2549 echo "HOSTCC=$host_cc" >> config.mak
2550 echo "HOSTCFLAGS=$host_cflags" >> config.mak
2551 echo "HOSTEXESUF=$HOSTEXESUF" >> config.mak
2552 echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2553 echo "HOSTLIBS=$host_libs" >> config.mak
2554 echo "TARGET_EXEC=$target_exec" >> config.mak
2555 echo "TARGET_PATH=$target_path" >> config.mak
2556
2557 if enabled bigendian; then
2558 echo "WORDS_BIGENDIAN=yes" >> config.mak
2559 echo "#define WORDS_BIGENDIAN 1" >> $TMPH
2560 fi
2561
2562 if enabled sdl; then
2563 echo "SDL_LIBS=$("${SDL_CONFIG}" --libs)" >> config.mak
2564 echo "SDL_CFLAGS=$("${SDL_CONFIG}" --cflags)" >> config.mak
2565 fi
2566 if enabled texi2html; then
2567 echo "BUILD_DOC=yes" >> config.mak
2568 fi
2569
2570 get_version(){
2571 name=$1
2572 file=$source_path/$2
2573 eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2574 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2575 lcname=$(tolower $name)
2576 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2577 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2578 }
2579
2580 get_version LIBSWSCALE libswscale/swscale.h
2581 get_version LIBPOSTPROC libpostproc/postprocess.h
2582 get_version LIBAVCODEC libavcodec/avcodec.h
2583 get_version LIBAVDEVICE libavdevice/avdevice.h
2584 get_version LIBAVFORMAT libavformat/avformat.h
2585 get_version LIBAVUTIL libavutil/avutil.h
2586 get_version LIBAVFILTER libavfilter/avfilter.h
2587
2588 if enabled shared; then
2589 echo "BUILD_SHARED=yes" >> config.mak
2590 echo "PIC=-fPIC -DPIC" >> config.mak
2591 echo "LIBTARGET=${LIBTARGET}" >> config.mak
2592 echo "SLIBNAME=${SLIBNAME}" >> config.mak
2593 echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2594 echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2595 echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2596 echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2597 echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2598 echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2599 fi
2600 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2601 echo "EXTRALIBS=$extralibs" >> config.mak
2602
2603 echo "ARCH=$arch" >> config.mak
2604
2605 print_config ARCH_ $TMPH config.mak $ARCH_LIST
2606 print_config HAVE_ $TMPH config.mak $HAVE_LIST
2607 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST \
2608 $CONFIG_EXTRA \
2609 $DECODER_LIST \
2610 $ENCODER_LIST \
2611 $HWACCEL_LIST \
2612 $PARSER_LIST \
2613 $BSF_LIST \
2614 $DEMUXER_LIST \
2615 $MUXER_LIST \
2616 $FILTER_LIST \
2617 $PROTOCOL_LIST \
2618 $INDEV_LIST \
2619 $OUTDEV_LIST \
2620
2621 echo "#define restrict $_restrict" >> $TMPH
2622
2623 if enabled small; then
2624 echo "#define av_always_inline" >> $TMPH
2625 fi
2626
2627
2628 # Apparently it's not possible to portably echo a backslash.
2629 enabled asmalign_pot &&
2630 printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2631 printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2632
2633 echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2634
2635 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2636 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
2637
2638 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2639 cmp -s $TMPH config.h &&
2640 echo "config.h is unchanged" ||
2641 mv -f $TMPH config.h
2642
2643 # build tree in object directory if source path is different from current one
2644 if enabled source_path_used; then
2645 DIRS="\
2646 doc \
2647 libavcodec \
2648 libavcodec/alpha \
2649 libavcodec/arm \
2650 libavcodec/bfin \
2651 libavcodec/mlib \
2652 libavcodec/ppc \
2653 libavcodec/sh4 \
2654 libavcodec/sparc \
2655 libavcodec/x86 \
2656 libavdevice \
2657 libavfilter \
2658 libavformat \
2659 libavutil \
2660 libpostproc \
2661 libswscale \
2662 libswscale/bfin \
2663 libswscale/mlib \
2664 libswscale/ppc \
2665 libswscale/sparc \
2666 libswscale/x86 \
2667 tests \
2668 tools \
2669 "
2670 FILES="\
2671 Makefile \
2672 common.mak \
2673 subdir.mak \
2674 doc/texi2pod.pl \
2675 libavcodec/Makefile \
2676 libavdevice/Makefile \
2677 libavfilter/Makefile \
2678 libavformat/Makefile \
2679 libavutil/Makefile \
2680 libpostproc/Makefile \
2681 libswscale/Makefile \
2682 "
2683 for dir in $DIRS ; do
2684 mkdir -p $dir
2685 done
2686 for f in $FILES ; do
2687 $ln_s "$source_path/$f" $f
2688 done
2689 fi
2690
2691
2692 # build pkg-config files
2693
2694 pkgconfig_generate(){
2695 name=$1
2696 shortname=${name#lib}${build_suffix}
2697 comment=$2
2698 version=$3
2699 libs=$4
2700 requires=$5
2701 cat <<EOF > $name/$name.pc
2702 prefix=$prefix
2703 exec_prefix=\${prefix}
2704 libdir=$libdir
2705 includedir=$incdir
2706
2707 Name: $name
2708 Description: $comment
2709 Version: $version
2710 Requires: $(disabled shared && echo $requires)
2711 Requires.private: $(enabled shared && echo $requires)
2712 Conflicts:
2713 Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
2714 Libs.private: $(enabled shared && echo $libs)
2715 Cflags: -I\${includedir}
2716 EOF
2717 cat <<EOF > $name/$name-uninstalled.pc
2718 prefix=
2719 exec_prefix=
2720 libdir=\${pcfiledir}
2721 includedir=${source_path}
2722
2723 Name: $name
2724 Description: $comment
2725 Version: $version
2726 Requires: $requires
2727 Conflicts:
2728 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2729 Cflags: -I\${includedir}
2730 EOF
2731 }
2732
2733 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2734 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2735 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2736 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2737 enabled avfilter &&
2738 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2739 enabled postproc &&
2740 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2741 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"