configure: add 'warn' function
[libav.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken FFmpeg."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63 --help print this message
64 --logfile=FILE log tests and output to FILE [config.log]
65 --disable-logging do not log configure debug information
66 --prefix=PREFIX install in PREFIX [$prefix]
67 --bindir=DIR install binaries in DIR [PREFIX/bin]
68 --datadir=DIR install data files in DIR [PREFIX/share/ffmpeg]
69 --libdir=DIR install libs in DIR [PREFIX/lib]
70 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
71 --incdir=DIR install includes in DIR [PREFIX/include]
72 --mandir=DIR install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75 --disable-static do not build static libraries [no]
76 --enable-shared build shared libraries [no]
77 --enable-gpl allow use of GPL code, the resulting libs
78 and binaries will be under GPL [no]
79 --enable-version3 upgrade (L)GPL to version 3 [no]
80 --enable-nonfree allow use of nonfree code, the resulting libs
81 and binaries will be unredistributable [no]
82 --disable-doc do not build documentation
83 --disable-ffmpeg disable ffmpeg build
84 --disable-ffplay disable ffplay build
85 --disable-ffprobe disable ffprobe build
86 --disable-ffserver disable ffserver build
87 --disable-avdevice disable libavdevice build
88 --disable-avcodec disable libavcodec build
89 --disable-avformat disable libavformat build
90 --disable-swscale disable libswscale build
91 --enable-postproc enable GPLed postprocessing support [no]
92 --disable-avfilter disable video filter support [no]
93 --enable-avfilter-lavf video filters dependent on avformat [no]
94 --disable-pthreads disable pthreads [auto]
95 --enable-w32threads use Win32 threads [no]
96 --enable-x11grab enable X11 grabbing [no]
97 --disable-network disable network support [no]
98 --disable-mpegaudio-hp faster (but less accurate) MPEG audio decoding [no]
99 --enable-gray enable full grayscale support (slower color)
100 --disable-swscale-alpha disable alpha channel support in swscale
101 --disable-fastdiv disable table-based division
102 --enable-small optimize for size instead of speed
103 --disable-aandct disable AAN DCT code
104 --disable-dct disable DCT code
105 --disable-fft disable FFT code
106 --disable-golomb disable Golomb code
107 --disable-lpc disable LPC code
108 --disable-mdct disable MDCT code
109 --disable-rdft disable RDFT code
110 --disable-vaapi disable VAAPI code
111 --disable-vdpau disable VDPAU code
112 --disable-dxva2 disable DXVA2 code
113 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
114 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
115 --enable-memalign-hack emulate memalign, interferes with memory debuggers
116 --disable-everything disable all components listed below
117 --disable-encoder=NAME disable encoder NAME
118 --enable-encoder=NAME enable encoder NAME
119 --disable-encoders disable all encoders
120 --disable-decoder=NAME disable decoder NAME
121 --enable-decoder=NAME enable decoder NAME
122 --disable-decoders disable all decoders
123 --disable-hwaccel=NAME disable hwaccel NAME
124 --enable-hwaccel=NAME enable hwaccel NAME
125 --disable-hwaccels disable all hwaccels
126 --disable-muxer=NAME disable muxer NAME
127 --enable-muxer=NAME enable muxer NAME
128 --disable-muxers disable all muxers
129 --disable-demuxer=NAME disable demuxer NAME
130 --enable-demuxer=NAME enable demuxer NAME
131 --disable-demuxers disable all demuxers
132 --enable-parser=NAME enable parser NAME
133 --disable-parser=NAME disable parser NAME
134 --disable-parsers disable all parsers
135 --enable-bsf=NAME enable bitstream filter NAME
136 --disable-bsf=NAME disable bitstream filter NAME
137 --disable-bsfs disable all bitstream filters
138 --enable-protocol=NAME enable protocol NAME
139 --disable-protocol=NAME disable protocol NAME
140 --disable-protocols disable all protocols
141 --disable-indev=NAME disable input device NAME
142 --disable-outdev=NAME disable output device NAME
143 --disable-indevs disable input devices
144 --disable-outdevs disable output devices
145 --disable-devices disable all devices
146 --enable-filter=NAME enable filter NAME
147 --disable-filter=NAME disable filter NAME
148 --disable-filters disable all filters
149 --list-decoders show all available decoders
150 --list-encoders show all available encoders
151 --list-hwaccels show all available hardware accelerators
152 --list-muxers show all available muxers
153 --list-demuxers show all available demuxers
154 --list-parsers show all available parsers
155 --list-protocols show all available protocols
156 --list-bsfs show all available bitstream filters
157 --list-indevs show all available input devices
158 --list-outdevs show all available output devices
159 --list-filters show all available filters
160
161 External library support:
162 --enable-avisynth enable reading of AVISynth script files [no]
163 --enable-bzlib enable bzlib [autodetect]
164 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
165 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
166 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
167 and libraw1394 [no]
168 --enable-libdirac enable Dirac support via libdirac [no]
169 --enable-libfaac enable FAAC support via libfaac [no]
170 --enable-libgsm enable GSM support via libgsm [no]
171 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
172 --enable-libnut enable NUT (de)muxing via libnut,
173 native (de)muxer exists [no]
174 --enable-libopenjpeg enable JPEG 2000 decoding via OpenJPEG [no]
175 --enable-librtmp enable RTMP[E] support via librtmp [no]
176 --enable-libschroedinger enable Dirac support via libschroedinger [no]
177 --enable-libspeex enable Speex decoding via libspeex [no]
178 --enable-libtheora enable Theora encoding via libtheora [no]
179 --enable-libvorbis enable Vorbis encoding via libvorbis,
180 native implementation exists [no]
181 --enable-libvpx enable VP8 support via libvpx [no]
182 --enable-libx264 enable H.264 encoding via x264 [no]
183 --enable-libxvid enable Xvid encoding via xvidcore,
184 native MPEG-4/Xvid encoder exists [no]
185 --enable-mlib enable Sun medialib [no]
186 --enable-zlib enable zlib [autodetect]
187
188 Advanced options (experts only):
189 --source-path=PATH path to source code [$source_path]
190 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
191 --enable-cross-compile assume a cross-compiler is used
192 --sysroot=PATH root of cross-build tree
193 --sysinclude=PATH location of cross-build system headers
194 --target-os=OS compiler targets OS [$target_os]
195 --target-exec=CMD command to run executables on target
196 --target-path=DIR path to view of build directory on target
197 --nm=NM use nm tool
198 --ar=AR use archive tool AR [$ar_default]
199 --as=AS use assembler AS [$as_default]
200 --cc=CC use C compiler CC [$cc_default]
201 --ld=LD use linker LD
202 --host-cc=HOSTCC use host C compiler HOSTCC
203 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
204 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
205 --host-libs=HLIBS use libs HLIBS when linking for host
206 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
207 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
208 --extra-libs=ELIBS add ELIBS [$ELIBS]
209 --extra-version=STRING version string suffix []
210 --build-suffix=SUFFIX library name suffix []
211 --arch=ARCH select architecture [$arch]
212 --cpu=CPU select the minimum required CPU (affects
213 instruction selection, may crash on older CPUs)
214 --enable-powerpc-perf enable performance report on PPC
215 (requires enabling PMC)
216 --disable-asm disable all assembler optimizations
217 --disable-altivec disable AltiVec optimizations
218 --disable-amd3dnow disable 3DNow! optimizations
219 --disable-amd3dnowext disable 3DNow! extended optimizations
220 --disable-mmx disable MMX optimizations
221 --disable-mmx2 disable MMX2 optimizations
222 --disable-sse disable SSE optimizations
223 --disable-ssse3 disable SSSE3 optimizations
224 --disable-armv5te disable armv5te optimizations
225 --disable-armv6 disable armv6 optimizations
226 --disable-armv6t2 disable armv6t2 optimizations
227 --disable-armvfp disable ARM VFP optimizations
228 --disable-iwmmxt disable iwmmxt optimizations
229 --disable-mmi disable MMI optimizations
230 --disable-neon disable neon optimizations
231 --disable-vis disable VIS optimizations
232 --disable-yasm disable use of yasm assembler
233 --enable-pic build position-independent code
234 --malloc-prefix=PFX prefix malloc and related names with PFX
235 --enable-sram allow use of on-chip SRAM
236
237 Developer options (useful when working on FFmpeg itself):
238 --disable-debug disable debugging symbols
239 --enable-debug=LEVEL set the debug level [$debuglevel]
240 --enable-gprof enable profiling with gprof [$gprof]
241 --disable-optimizations disable compiler optimizations
242 --enable-extra-warnings enable more compiler warnings
243 --disable-stripping disable stripping of executables and shared libraries
244 --samples=PATH location of test samples for FATE
245
246 NOTE: Object files are built at the place where configure is launched.
247 EOF
248 exit 0
249 }
250
251 quotes='""'
252
253 log(){
254 echo "$@" >> $logfile
255 }
256
257 log_file(){
258 log BEGIN $1
259 pr -n -t $1 >> $logfile
260 log END $1
261 }
262
263 echolog(){
264 log "$@"
265 echo "$@"
266 }
267
268 warn(){
269 log "WARNING: $*"
270 WARNINGS="${WARNINGS}WARNING: $*\n"
271 }
272
273 die(){
274 echolog "$@"
275 cat <<EOF
276
277 If you think configure made a mistake, make sure you are using the latest
278 version from SVN. If the latest version fails, report the problem to the
279 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
280 EOF
281 if disabled logging; then
282 cat <<EOF
283 Rerun configure with logging enabled (do not use --disable-logging), and
284 include the log this produces with your report.
285 EOF
286 else
287 cat <<EOF
288 Include the log file "$logfile" produced by configure as this will help
289 solving the problem.
290 EOF
291 fi
292 exit 1
293 }
294
295 # Avoid locale weirdness, besides we really just want to translate ASCII.
296 toupper(){
297 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
298 }
299
300 tolower(){
301 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
302 }
303
304 c_escape(){
305 echo "$*" | sed 's/["\\]/\\\0/g'
306 }
307
308 sh_quote(){
309 v=$(echo "$1" | sed "s/'/'\\\\''/g")
310 test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
311 echo "$v"
312 }
313
314 filter(){
315 pat=$1
316 shift
317 for v; do
318 eval "case $v in $pat) echo $v ;; esac"
319 done
320 }
321
322 map(){
323 m=$1
324 shift
325 for v; do eval $m; done
326 }
327
328 set_all(){
329 value=$1
330 shift
331 for var in $*; do
332 eval $var=$value
333 done
334 }
335
336 set_weak(){
337 value=$1
338 shift
339 for var; do
340 eval : \${$var:=$value}
341 done
342 }
343
344 pushvar(){
345 for var in $*; do
346 eval level=\${${var}_level:=0}
347 eval ${var}_${level}="\$$var"
348 eval ${var}_level=$(($level+1))
349 done
350 }
351
352 popvar(){
353 for var in $*; do
354 eval level=\${${var}_level:-0}
355 test $level = 0 && continue
356 eval level=$(($level-1))
357 eval $var="\${${var}_${level}}"
358 eval ${var}_level=$level
359 eval unset ${var}_${level}
360 done
361 }
362
363 enable(){
364 set_all yes $*
365 }
366
367 disable(){
368 set_all no $*
369 }
370
371 enable_weak(){
372 set_weak yes $*
373 }
374
375 disable_weak(){
376 set_weak no $*
377 }
378
379 enable_safe(){
380 for var; do
381 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
382 done
383 }
384
385 disable_safe(){
386 for var; do
387 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
388 done
389 }
390
391 do_enable_deep(){
392 for var; do
393 enabled $var && continue
394 eval sel="\$${var}_select"
395 eval sgs="\$${var}_suggest"
396 pushvar var sgs
397 enable_deep $sel
398 popvar sgs
399 enable_deep_weak $sgs
400 popvar var
401 done
402 }
403
404 enable_deep(){
405 do_enable_deep $*
406 enable $*
407 }
408
409 enable_deep_weak(){
410 do_enable_deep $*
411 enable_weak $*
412 }
413
414 enabled(){
415 test "${1#!}" = "$1" && op== || op=!=
416 eval test "x\$${1#!}" $op "xyes"
417 }
418
419 disabled(){
420 test "${1#!}" = "$1" && op== || op=!=
421 eval test "x\$${1#!}" $op "xno"
422 }
423
424 enabled_all(){
425 for opt; do
426 enabled $opt || return 1
427 done
428 }
429
430 disabled_all(){
431 for opt; do
432 disabled $opt || return 1
433 done
434 }
435
436 enabled_any(){
437 for opt; do
438 enabled $opt && return 0
439 done
440 }
441
442 disabled_any(){
443 for opt; do
444 disabled $opt && return 0
445 done
446 return 1
447 }
448
449 set_default(){
450 for opt; do
451 eval : \${$opt:=\$${opt}_default}
452 done
453 }
454
455 is_in(){
456 value=$1
457 shift
458 for var in $*; do
459 [ $var = $value ] && return 0
460 done
461 return 1
462 }
463
464 check_deps(){
465 for cfg; do
466 cfg="${cfg#!}"
467 enabled ${cfg}_checking && die "Circular dependency for $cfg."
468 disabled ${cfg}_checking && continue
469 enable ${cfg}_checking
470
471 eval dep_all="\$${cfg}_deps"
472 eval dep_any="\$${cfg}_deps_any"
473 eval dep_sel="\$${cfg}_select"
474 eval dep_sgs="\$${cfg}_suggest"
475 eval dep_ifa="\$${cfg}_if"
476 eval dep_ifn="\$${cfg}_if_any"
477
478 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
479 check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
480 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
481
482 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
483 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
484 enabled_all $dep_all || disable $cfg
485 enabled_any $dep_any || disable $cfg
486 disabled_any $dep_sel && disable $cfg
487
488 if enabled $cfg; then
489 eval dep_extralibs="\$${cfg}_extralibs"
490 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
491 enable_deep $dep_sel
492 enable_deep_weak $dep_sgs
493 fi
494
495 disable ${cfg}_checking
496 done
497 }
498
499 print_config(){
500 pfx=$1
501 header=$2
502 makefile=$3
503 shift 3
504 for cfg; do
505 ucname="$(toupper $cfg)"
506 if enabled $cfg; then
507 echo "#define ${pfx}${ucname} 1" >> $header
508 echo "${pfx}${ucname}=yes" >> $makefile
509 else
510 echo "#define ${pfx}${ucname} 0" >> $header
511 echo "!${pfx}${ucname}=yes" >> $makefile
512 fi
513 done
514 }
515
516 flags_saved(){
517 (: ${SAVE_CFLAGS?}) 2> /dev/null
518 }
519
520 save_flags(){
521 flags_saved && return
522 SAVE_CFLAGS="$CFLAGS"
523 SAVE_LDFLAGS="$LDFLAGS"
524 SAVE_extralibs="$extralibs"
525 }
526
527 restore_flags(){
528 flags_saved || return
529 CFLAGS="$SAVE_CFLAGS"
530 LDFLAGS="$SAVE_LDFLAGS"
531 extralibs="$SAVE_extralibs"
532 unset SAVE_CFLAGS
533 unset SAVE_LDFLAGS
534 unset SAVE_extralibs
535 }
536
537 temp_cflags(){
538 save_flags
539 CFLAGS="$CFLAGS $*"
540 }
541
542 temp_ldflags(){
543 save_flags
544 LDFLAGS="$LDFLAGS $*"
545 }
546
547 temp_extralibs(){
548 save_flags
549 extralibs="$extralibs $*"
550 }
551
552 append(){
553 var=$1
554 shift
555 flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
556 eval "$var=\"\$$var $*\""
557 }
558
559 add_cppflags(){
560 append CPPFLAGS $($filter_cppflags "$@")
561 }
562
563 add_cflags(){
564 append CFLAGS $($filter_cflags "$@")
565 }
566
567 add_asflags(){
568 append ASFLAGS $($filter_asflags "$@")
569 }
570
571 add_ldflags(){
572 append LDFLAGS "$@"
573 }
574
575 add_extralibs(){
576 append extralibs "$@"
577 }
578
579 check_cmd(){
580 log "$@"
581 "$@" >> $logfile 2>&1
582 }
583
584 check_cc(){
585 log check_cc "$@"
586 cat > $TMPC
587 log_file $TMPC
588 check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
589 }
590
591 check_cpp(){
592 log check_cpp "$@"
593 cat > $TMPC
594 log_file $TMPC
595 check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
596 }
597
598 check_as(){
599 log check_as "$@"
600 cat > $TMPC
601 log_file $TMPC
602 check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
603 }
604
605 check_asm(){
606 log check_asm "$@"
607 name="$1"
608 code="$2"
609 shift 2
610 disable $name
611 check_as "$@" <<EOF && enable $name
612 void foo(void){ __asm__ volatile($code); }
613 EOF
614 }
615
616 check_yasm(){
617 log check_yasm "$@"
618 echo "$1" > $TMPS
619 log_file $TMPS
620 shift 1
621 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
622 }
623
624 check_ld(){
625 log check_ld "$@"
626 flags=''
627 libs=''
628 for f; do
629 test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
630 done
631 check_cc $($filter_cflags $flags) || return
632 check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
633 }
634
635 check_cppflags(){
636 log check_cppflags "$@"
637 set -- $($filter_cppflags "$@")
638 check_cc "$@" <<EOF && append CPPFLAGS "$@"
639 int x;
640 EOF
641 }
642
643 check_cflags(){
644 log check_cflags "$@"
645 set -- $($filter_cflags "$@")
646 check_cc "$@" <<EOF && append CFLAGS "$@"
647 int x;
648 EOF
649 }
650
651 test_ldflags(){
652 log test_ldflags "$@"
653 check_ld "$@" <<EOF
654 int main(void){ return 0; }
655 EOF
656 }
657
658 check_ldflags(){
659 log check_ldflags "$@"
660 test_ldflags "$@" && add_ldflags "$@"
661 }
662
663 check_header(){
664 log check_header "$@"
665 header=$1
666 shift
667 disable_safe $header
668 check_cpp "$@" <<EOF && enable_safe $header
669 #include <$header>
670 int x;
671 EOF
672 }
673
674 check_func(){
675 log check_func "$@"
676 func=$1
677 shift
678 disable $func
679 check_ld "$@" <<EOF && enable $func
680 extern int $func();
681 int main(void){ $func(); }
682 EOF
683 }
684
685 check_mathfunc(){
686 log check_mathfunc "$@"
687 func=$1
688 shift
689 disable $func
690 check_ld "$@" <<EOF && enable $func
691 #include <math.h>
692 float foo(float f) { return $func(f); }
693 int main(void){ return 0; }
694 EOF
695 }
696
697 check_func_headers(){
698 log check_func_headers "$@"
699 headers=$1
700 func=$2
701 shift 2
702 disable $func
703 incs=""
704 for hdr in $headers; do
705 incs="$incs
706 #include <$hdr>"
707 done
708 check_ld "$@" <<EOF && enable $func && enable_safe $headers
709 $incs
710 int main(int argc, char **argv){
711 return (long) $func;
712 }
713 EOF
714 }
715
716 check_cpp_condition(){
717 log check_cpp_condition "$@"
718 header=$1
719 condition=$2
720 shift 2
721 check_cpp $($filter_cppflags "$@") <<EOF
722 #include <$header>
723 #if !($condition)
724 #error "unsatisfied condition: $condition"
725 #endif
726 EOF
727 }
728
729 check_lib(){
730 log check_lib "$@"
731 header="$1"
732 func="$2"
733 shift 2
734 temp_extralibs "$@"
735 check_header $header && check_func $func && add_extralibs "$@"
736 err=$?
737 restore_flags
738 return $err
739 }
740
741 check_lib2(){
742 log check_lib2 "$@"
743 headers="$1"
744 func="$2"
745 shift 2
746 check_func_headers "$headers" $func "$@" && add_extralibs "$@"
747 }
748
749 check_exec(){
750 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
751 }
752
753 check_exec_crash(){
754 code=$(cat)
755
756 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
757 # are safe but may not be available everywhere. Thus we use
758 # raise(SIGTERM) instead. The check is run in a subshell so we
759 # can redirect the "Terminated" message from the shell. SIGBUS
760 # is not defined by standard C so it is used conditionally.
761
762 (check_exec "$@") >> $logfile 2>&1 <<EOF
763 #include <signal.h>
764 static void sighandler(int sig){
765 raise(SIGTERM);
766 }
767 int main(void){
768 signal(SIGILL, sighandler);
769 signal(SIGFPE, sighandler);
770 signal(SIGSEGV, sighandler);
771 #ifdef SIGBUS
772 signal(SIGBUS, sighandler);
773 #endif
774 { $code }
775 }
776 EOF
777 }
778
779 check_type(){
780 log check_type "$@"
781 headers=$1
782 type=$2
783 shift 2
784 disable_safe "$type"
785 incs=""
786 for hdr in $headers; do
787 incs="$incs
788 #include <$hdr>"
789 done
790 check_cc "$@" <<EOF && enable_safe "$type"
791 $incs
792 $type v;
793 EOF
794 }
795
796 check_struct(){
797 log check_type "$@"
798 headers=$1
799 struct=$2
800 member=$3
801 shift 3
802 disable_safe "${struct}_${member}"
803 incs=""
804 for hdr in $headers; do
805 incs="$incs
806 #include <$hdr>"
807 done
808 check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
809 $incs
810 const void *p = &(($struct *)0)->$member;
811 EOF
812 }
813
814 require(){
815 name="$1"
816 header="$2"
817 func="$3"
818 shift 3
819 check_lib $header $func "$@" || die "ERROR: $name not found"
820 }
821
822 require2(){
823 name="$1"
824 headers="$2"
825 func="$3"
826 shift 3
827 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
828 }
829
830 check_foo_config(){
831 cfg=$1
832 pkg=$2
833 header=$3
834 func=$4
835 shift 4
836 disable $cfg
837 check_cmd ${pkg}-config --version
838 err=$?
839 if test "$err" = 0; then
840 temp_cflags $(${pkg}-config --cflags)
841 temp_extralibs $(${pkg}-config --libs)
842 check_lib "$@" $header $func && enable $cfg
843 fi
844 return $err
845 }
846
847 check_host_cc(){
848 log check_host_cc "$@"
849 cat > $TMPC
850 log_file $TMPC
851 check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
852 }
853
854 check_host_cflags(){
855 log check_host_cflags "$@"
856 check_host_cc "$@" <<EOF && append host_cflags "$@"
857 int x;
858 EOF
859 }
860
861 apply(){
862 file=$1
863 shift
864 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
865 }
866
867 cp_if_changed(){
868 cmp -s "$1" "$2" &&
869 echo "$2 is unchanged" ||
870 cp -f "$1" "$2"
871 }
872
873 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
874 # system-dependent things.
875
876 COMPONENT_LIST="
877 bsfs
878 decoders
879 demuxers
880 encoders
881 filters
882 hwaccels
883 indevs
884 muxers
885 outdevs
886 parsers
887 protocols
888 "
889
890 CONFIG_LIST="
891 $COMPONENT_LIST
892 aandct
893 avcodec
894 avdevice
895 avfilter
896 avfilter_lavf
897 avformat
898 avisynth
899 bzlib
900 dct
901 doc
902 dwt
903 dxva2
904 fastdiv
905 ffmpeg
906 ffplay
907 ffprobe
908 ffserver
909 fft
910 golomb
911 gpl
912 gprof
913 gray
914 h264dsp
915 hardcoded_tables
916 libdc1394
917 libdirac
918 libfaac
919 libgsm
920 libmp3lame
921 libnut
922 libopencore_amrnb
923 libopencore_amrwb
924 libopenjpeg
925 librtmp
926 libschroedinger
927 libspeex
928 libtheora
929 libvorbis
930 libvpx
931 libx264
932 libxvid
933 lpc
934 lsp
935 mdct
936 memalign_hack
937 mlib
938 mpegaudio_hp
939 network
940 nonfree
941 pic
942 postproc
943 powerpc_perf
944 rdft
945 runtime_cpudetect
946 shared
947 small
948 sram
949 static
950 swscale
951 swscale_alpha
952 vaapi
953 vdpau
954 version3
955 x11grab
956 zlib
957 "
958
959 THREADS_LIST='
960 pthreads
961 w32threads
962 '
963
964 ARCH_LIST='
965 alpha
966 arm
967 avr32
968 avr32_ap
969 avr32_uc
970 bfin
971 ia64
972 m68k
973 mips
974 mips64
975 parisc
976 ppc
977 ppc64
978 s390
979 sh4
980 sparc
981 sparc64
982 tomi
983 x86
984 x86_32
985 x86_64
986 '
987
988 ARCH_EXT_LIST='
989 altivec
990 amd3dnow
991 amd3dnowext
992 armv5te
993 armv6
994 armv6t2
995 armvfp
996 iwmmxt
997 mmi
998 mmx
999 mmx2
1000 neon
1001 ppc4xx
1002 sse
1003 ssse3
1004 vis
1005 '
1006
1007 HAVE_LIST_PUB='
1008 bigendian
1009 '
1010
1011 HAVE_LIST="
1012 $ARCH_EXT_LIST
1013 $HAVE_LIST_PUB
1014 $THREADS_LIST
1015 alsa_asoundlib_h
1016 altivec_h
1017 arpa_inet_h
1018 attribute_may_alias
1019 attribute_packed
1020 bswap
1021 closesocket
1022 cmov
1023 conio_h
1024 dcbzl
1025 dev_bktr_ioctl_bt848_h
1026 dev_bktr_ioctl_meteor_h
1027 dev_ic_bt8xx_h
1028 dev_video_meteor_ioctl_meteor_h
1029 dev_video_bktr_ioctl_bt848_h
1030 dlfcn_h
1031 dlopen
1032 dos_paths
1033 ebp_available
1034 ebx_available
1035 exp2
1036 exp2f
1037 fast_64bit
1038 fast_clz
1039 fast_cmov
1040 fast_unaligned
1041 fork
1042 getaddrinfo
1043 gethrtime
1044 GetProcessMemoryInfo
1045 GetProcessTimes
1046 getrusage
1047 struct_rusage_ru_maxrss
1048 inet_aton
1049 inline_asm
1050 isatty
1051 ldbrx
1052 libdc1394_1
1053 libdc1394_2
1054 llrint
1055 llrintf
1056 local_aligned_16
1057 local_aligned_8
1058 log2
1059 log2f
1060 loongson
1061 lrint
1062 lrintf
1063 lzo1x_999_compress
1064 machine_ioctl_bt848_h
1065 machine_ioctl_meteor_h
1066 malloc_h
1067 memalign
1068 mkstemp
1069 pld
1070 posix_memalign
1071 round
1072 roundf
1073 sdl
1074 sdl_video_size
1075 setmode
1076 socklen_t
1077 soundcard_h
1078 poll_h
1079 setrlimit
1080 strerror_r
1081 struct_addrinfo
1082 struct_ipv6_mreq
1083 struct_sockaddr_in6
1084 struct_sockaddr_sa_len
1085 struct_sockaddr_storage
1086 symver
1087 symver_gnu_asm
1088 symver_asm_label
1089 sys_mman_h
1090 sys_resource_h
1091 sys_select_h
1092 sys_soundcard_h
1093 sys_videoio_h
1094 ten_operands
1095 termios_h
1096 threads
1097 truncf
1098 vfp_args
1099 VirtualAlloc
1100 winsock2_h
1101 xform_asm
1102 yasm
1103 "
1104
1105 # options emitted with CONFIG_ prefix but not available on command line
1106 CONFIG_EXTRA="
1107 avutil
1108 gplv3
1109 lgplv3
1110 "
1111
1112 CMDLINE_SELECT="
1113 $ARCH_EXT_LIST
1114 $CONFIG_LIST
1115 $THREADS_LIST
1116 asm
1117 cross_compile
1118 debug
1119 extra_warnings
1120 logging
1121 optimizations
1122 stripping
1123 yasm
1124 "
1125
1126 PATHS_LIST='
1127 bindir
1128 datadir
1129 incdir
1130 libdir
1131 mandir
1132 prefix
1133 shlibdir
1134 '
1135
1136 CMDLINE_SET="
1137 $PATHS_LIST
1138 ar
1139 arch
1140 as
1141 build_suffix
1142 cc
1143 cpu
1144 cross_prefix
1145 dep_cc
1146 extra_version
1147 host_cc
1148 host_cflags
1149 host_ldflags
1150 host_libs
1151 host_os
1152 ld
1153 logfile
1154 malloc_prefix
1155 nm
1156 samples
1157 source_path
1158 strip
1159 sysinclude
1160 sysroot
1161 target_exec
1162 target_os
1163 target_path
1164 "
1165
1166 CMDLINE_APPEND="
1167 extra_cflags
1168 "
1169
1170 # code dependency declarations
1171
1172 # architecture extensions
1173
1174 armv5te_deps="arm"
1175 armv6_deps="arm"
1176 armv6t2_deps="arm"
1177 armvfp_deps="arm"
1178 iwmmxt_deps="arm"
1179 neon_deps="arm"
1180
1181 mmi_deps="mips"
1182
1183 altivec_deps="ppc"
1184 ppc4xx_deps="ppc"
1185
1186 vis_deps="sparc"
1187
1188 x86_64_suggest="cmov fast_cmov"
1189 amd3dnow_deps="mmx"
1190 amd3dnowext_deps="amd3dnow"
1191 mmx_deps="x86"
1192 mmx2_deps="mmx"
1193 sse_deps="mmx"
1194 ssse3_deps="sse"
1195
1196 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1197 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1198 fast_unaligned_if_any="armv6 ppc x86"
1199
1200 need_memalign="altivec neon sse"
1201 inline_asm_deps="!tms470"
1202
1203 symver_if_any="symver_asm_label symver_gnu_asm"
1204
1205 # subsystems
1206 mdct_select="fft"
1207 rdft_select="fft"
1208
1209 # decoders / encoders / hardware accelerators
1210 aac_decoder_select="mdct rdft aac_parser"
1211 aac_encoder_select="mdct"
1212 ac3_decoder_select="mdct ac3_parser"
1213 alac_encoder_select="lpc"
1214 amrnb_decoder_select="lsp"
1215 atrac1_decoder_select="mdct"
1216 atrac3_decoder_select="mdct"
1217 binkaudio_dct_decoder_select="mdct rdft dct"
1218 binkaudio_rdft_decoder_select="mdct rdft"
1219 cavs_decoder_select="golomb"
1220 cook_decoder_select="mdct"
1221 cscd_decoder_suggest="zlib"
1222 dca_decoder_select="mdct"
1223 dnxhd_encoder_select="aandct"
1224 dxa_decoder_select="zlib"
1225 eac3_decoder_select="ac3_decoder"
1226 eamad_decoder_select="aandct"
1227 eatgq_decoder_select="aandct"
1228 eatqi_decoder_select="aandct"
1229 ffv1_decoder_select="golomb"
1230 flac_decoder_select="golomb"
1231 flac_encoder_select="golomb lpc"
1232 flashsv_decoder_select="zlib"
1233 flashsv_encoder_select="zlib"
1234 flv_decoder_select="h263_decoder"
1235 flv_encoder_select="h263_encoder"
1236 h261_encoder_select="aandct"
1237 h263_decoder_select="h263_parser"
1238 h263_encoder_select="aandct"
1239 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1240 h263i_decoder_select="h263_decoder"
1241 h263p_encoder_select="h263_encoder"
1242 h264_decoder_select="golomb h264dsp"
1243 h264_dxva2_hwaccel_deps="dxva2api_h"
1244 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1245 h264_vaapi_hwaccel_select="vaapi"
1246 h264_vdpau_decoder_select="vdpau h264_decoder"
1247 imc_decoder_select="fft mdct"
1248 jpegls_decoder_select="golomb"
1249 jpegls_encoder_select="golomb"
1250 ljpeg_encoder_select="aandct"
1251 loco_decoder_select="golomb"
1252 mjpeg_encoder_select="aandct"
1253 mlp_decoder_select="mlp_parser"
1254 mpeg1video_encoder_select="aandct"
1255 mpeg2video_encoder_select="aandct"
1256 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1257 mpeg4_encoder_select="h263_encoder"
1258 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1259 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1260 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1261 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1262 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1263 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1264 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1265 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1266 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1267 msmpeg4v1_decoder_select="h263_decoder"
1268 msmpeg4v1_encoder_select="h263_encoder"
1269 msmpeg4v2_decoder_select="h263_decoder"
1270 msmpeg4v2_encoder_select="h263_encoder"
1271 msmpeg4v3_decoder_select="h263_decoder"
1272 msmpeg4v3_encoder_select="h263_encoder"
1273 nellymoser_decoder_select="mdct"
1274 nellymoser_encoder_select="mdct"
1275 png_decoder_select="zlib"
1276 png_encoder_select="zlib"
1277 qcelp_decoder_select="lsp"
1278 qdm2_decoder_select="mdct rdft"
1279 ra_144_encoder_select="lpc"
1280 rv10_decoder_select="h263_decoder"
1281 rv10_encoder_select="h263_encoder"
1282 rv20_decoder_select="h263_decoder"
1283 rv20_encoder_select="h263_encoder"
1284 rv30_decoder_select="golomb h264dsp"
1285 rv40_decoder_select="golomb h264dsp"
1286 shorten_decoder_select="golomb"
1287 sipr_decoder_select="lsp"
1288 snow_decoder_select="dwt"
1289 snow_encoder_select="aandct dwt"
1290 sonic_decoder_select="golomb"
1291 sonic_encoder_select="golomb"
1292 sonic_ls_encoder_select="golomb"
1293 svq1_encoder_select="aandct"
1294 svq3_decoder_select="golomb h264dsp"
1295 svq3_decoder_suggest="zlib"
1296 theora_decoder_select="vp3_decoder"
1297 tiff_decoder_suggest="zlib"
1298 tiff_encoder_suggest="zlib"
1299 truehd_decoder_select="mlp_decoder"
1300 tscc_decoder_select="zlib"
1301 twinvq_decoder_select="mdct lsp"
1302 vc1_decoder_select="h263_decoder"
1303 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1304 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1305 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1306 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1307 vorbis_decoder_select="mdct"
1308 vorbis_encoder_select="mdct"
1309 vp6a_decoder_select="vp6_decoder"
1310 vp6f_decoder_select="vp6_decoder"
1311 wmapro_decoder_select="mdct"
1312 wmav1_decoder_select="mdct"
1313 wmav1_encoder_select="mdct"
1314 wmav2_decoder_select="mdct"
1315 wmav2_encoder_select="mdct"
1316 wmavoice_decoder_select="lsp rdft dct"
1317 wmv1_decoder_select="h263_decoder"
1318 wmv1_encoder_select="h263_encoder"
1319 wmv2_decoder_select="h263_decoder"
1320 wmv2_encoder_select="h263_encoder"
1321 wmv3_decoder_select="vc1_decoder"
1322 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1323 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1324 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1325 zlib_decoder_select="zlib"
1326 zlib_encoder_select="zlib"
1327 zmbv_decoder_select="zlib"
1328 zmbv_encoder_select="zlib"
1329
1330 vaapi_deps="va_va_h"
1331 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1332
1333 # parsers
1334 h264_parser_select="golomb h264dsp"
1335
1336 # bitstream_filters
1337 aac_adtstoasc_bsf_select="aac_parser"
1338
1339 # external libraries
1340 libdirac_decoder_deps="libdirac !libschroedinger"
1341 libdirac_encoder_deps="libdirac"
1342 libfaac_encoder_deps="libfaac"
1343 libgsm_decoder_deps="libgsm"
1344 libgsm_encoder_deps="libgsm"
1345 libgsm_ms_decoder_deps="libgsm"
1346 libgsm_ms_encoder_deps="libgsm"
1347 libmp3lame_encoder_deps="libmp3lame"
1348 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1349 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1350 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1351 libopenjpeg_decoder_deps="libopenjpeg"
1352 libschroedinger_decoder_deps="libschroedinger"
1353 libschroedinger_encoder_deps="libschroedinger"
1354 libspeex_decoder_deps="libspeex"
1355 libtheora_encoder_deps="libtheora"
1356 libvorbis_encoder_deps="libvorbis"
1357 libvpx_decoder_deps="libvpx"
1358 libvpx_encoder_deps="libvpx"
1359 libx264_encoder_deps="libx264"
1360 libxvid_encoder_deps="libxvid"
1361
1362 # demuxers / muxers
1363 ac3_demuxer_deps="ac3_parser"
1364 asf_stream_muxer_select="asf_muxer"
1365 avisynth_demuxer_deps="avisynth"
1366 dirac_demuxer_deps="dirac_parser"
1367 eac3_demuxer_select="ac3_parser"
1368 ipod_muxer_select="mov_muxer"
1369 libnut_demuxer_deps="libnut"
1370 libnut_muxer_deps="libnut"
1371 matroska_audio_muxer_select="matroska_muxer"
1372 matroska_demuxer_suggest="zlib bzlib"
1373 mov_demuxer_suggest="zlib"
1374 mp3_demuxer_deps="mpegaudio_parser"
1375 mp4_muxer_select="mov_muxer"
1376 mpegtsraw_demuxer_select="mpegts_demuxer"
1377 mxf_d10_muxer_select="mxf_muxer"
1378 ogg_demuxer_select="golomb"
1379 psp_muxer_select="mov_muxer"
1380 rtsp_demuxer_deps="sdp_demuxer"
1381 rtsp_muxer_deps="sdp_demuxer"
1382 rtsp_muxer_select="rtp_muxer"
1383 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1384 sdp_demuxer_select="asf_demuxer rm_demuxer"
1385 spdif_muxer_select="aac_parser"
1386 tg2_muxer_select="mov_muxer"
1387 tgp_muxer_select="mov_muxer"
1388 w64_demuxer_deps="wav_demuxer"
1389
1390 # indevs / outdevs
1391 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1392 alsa_indev_extralibs="-lasound"
1393 alsa_outdev_deps="alsa_asoundlib_h"
1394 alsa_outdev_extralibs="-lasound"
1395 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1396 dv1394_indev_deps="dv1394 dv_demuxer"
1397 jack_indev_deps="jack_jack_h"
1398 jack_indev_extralibs="-ljack"
1399 libdc1394_indev_deps="libdc1394"
1400 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1401 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1402 v4l_indev_deps="linux_videodev_h"
1403 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1404 vfwcap_indev_deps="capCreateCaptureWindow"
1405 vfwcap_indev_extralibs="-lavicap32"
1406 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1407 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1408
1409 # protocols
1410 gopher_protocol_deps="network"
1411 http_protocol_deps="network"
1412 http_protocol_select="tcp_protocol"
1413 mmst_protocol_deps="network"
1414 rtmp_protocol_select="tcp_protocol"
1415 rtp_protocol_select="udp_protocol"
1416 tcp_protocol_deps="network"
1417 udp_protocol_deps="network"
1418
1419 # filters
1420 movie_filter_deps="avfilter_lavf"
1421 avfilter_lavf_deps="avformat"
1422
1423 # libraries
1424 avdevice_deps="avcodec avformat"
1425 avformat_deps="avcodec"
1426
1427 # programs
1428 ffmpeg_deps="avcodec avformat swscale"
1429 ffmpeg_select="buffer_filter"
1430 ffplay_deps="avcodec avformat swscale sdl"
1431 ffplay_select="rdft"
1432 ffprobe_deps="avcodec avformat"
1433 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1434 ffserver_extralibs='$ldl'
1435
1436 doc_deps="texi2html"
1437
1438 # default parameters
1439
1440 logfile="config.log"
1441
1442 # installation paths
1443 prefix_default="/usr/local"
1444 bindir_default='${prefix}/bin'
1445 datadir_default='${prefix}/share/ffmpeg'
1446 incdir_default='${prefix}/include'
1447 libdir_default='${prefix}/lib'
1448 mandir_default='${prefix}/share/man'
1449 shlibdir_default="$libdir_default"
1450
1451 # toolchain
1452 ar_default="ar"
1453 cc_default="gcc"
1454 cc_version=\"unknown\"
1455 host_cc_default="gcc"
1456 ln_s="ln -sf"
1457 nm_default="nm"
1458 objformat="elf"
1459 ranlib="ranlib"
1460 strip_default="strip"
1461 yasmexe="yasm"
1462
1463 nm_opts='-g'
1464
1465 # machine
1466 arch_default=$(uname -m)
1467 cpu="generic"
1468
1469 # OS
1470 target_os_default=$(tolower $(uname -s))
1471 host_os=$target_os_default
1472
1473 # configurable options
1474 enable avcodec
1475 enable avdevice
1476 enable avfilter
1477 enable avformat
1478 enable avutil
1479 enable asm
1480 enable debug
1481 enable doc
1482 enable fastdiv
1483 enable ffmpeg
1484 enable ffplay
1485 enable ffprobe
1486 enable ffserver
1487 enable mpegaudio_hp
1488 enable network
1489 enable optimizations
1490 enable protocols
1491 enable static
1492 enable stripping
1493 enable swscale
1494 enable swscale_alpha
1495
1496 # build settings
1497 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1498 FFSERVERLDFLAGS=-Wl,-E
1499 LIBPREF="lib"
1500 LIBSUF=".a"
1501 FULLNAME='$(NAME)$(BUILDSUF)'
1502 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1503 SLIBPREF="lib"
1504 SLIBSUF=".so"
1505 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1506 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1507 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1508 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1509
1510 CC_O='-o $@'
1511
1512 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1513 host_libs='-lm'
1514
1515 target_path='$(CURDIR)'
1516
1517 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1518 # full relative path for objects in subdirectories for non-recursive Make.
1519 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1520 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1521
1522 # find source path
1523 source_path="$(dirname "$0")"
1524 enable source_path_used
1525 if test -f configure; then
1526 source_path="$(pwd)"
1527 disable source_path_used
1528 else
1529 source_path="$(cd "$source_path"; pwd)"
1530 echo "$source_path" | grep -q '[[:blank:]]' &&
1531 die "Out of tree builds are impossible with whitespace in source path."
1532 test -e "$source_path/config.h" &&
1533 die "Out of tree builds are impossible with config.h in source dir."
1534 fi
1535
1536 for v in "$@"; do
1537 r=${v#*=}
1538 l=${v%"$r"}
1539 r=$(sh_quote "$r")
1540 FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1541 done
1542
1543 find_things(){
1544 thing=$1
1545 pattern=$2
1546 file=$source_path/$3
1547 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1548 }
1549
1550 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
1551 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
1552 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
1553 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
1554 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
1555 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
1556 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
1557 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
1558 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
1559 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1560 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
1561
1562 for n in $COMPONENT_LIST; do
1563 v=$(toupper ${n%s})_LIST
1564 eval enable \$$v
1565 eval ${n}_if_any="\$$v"
1566 done
1567
1568 enable $ARCH_EXT_LIST
1569
1570 die_unknown(){
1571 echo "Unknown option \"$1\"."
1572 echo "See $0 --help for available options."
1573 exit 1
1574 }
1575
1576 show_list() {
1577 suffix=_$1
1578 shift
1579 echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1580 exit 0
1581 }
1582
1583 for opt do
1584 optval="${opt#*=}"
1585 case "$opt" in
1586 --extra-ldflags=*) add_ldflags $optval
1587 ;;
1588 --extra-libs=*) add_extralibs $optval
1589 ;;
1590 --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1591 ;;
1592 --enable-debug=*) debuglevel="$optval"
1593 ;;
1594 --disable-everything)
1595 map 'eval disable \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1596 ;;
1597 --enable-*=*|--disable-*=*)
1598 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1599 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1600 eval list=\$$(toupper $thing)_LIST
1601 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1602 $action $(filter "$name" $list)
1603 ;;
1604 --enable-?*|--disable-?*)
1605 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1606 if is_in $option $COMPONENT_LIST; then
1607 test $action = disable && action=unset
1608 eval $action \$$(toupper ${option%s})_LIST
1609 elif is_in $option $CMDLINE_SELECT; then
1610 $action $option
1611 else
1612 die_unknown $opt
1613 fi
1614 ;;
1615 --list-*)
1616 NAME="${opt#--list-}"
1617 is_in $NAME $COMPONENT_LIST || die_unknown $opt
1618 NAME=${NAME%s}
1619 eval show_list $NAME \$$(toupper $NAME)_LIST
1620 ;;
1621 --help|-h) show_help
1622 ;;
1623 *)
1624 optname="${opt%%=*}"
1625 optname="${optname#--}"
1626 optname=$(echo "$optname" | sed 's/-/_/g')
1627 if is_in $optname $CMDLINE_SET; then
1628 eval $optname='$optval'
1629 elif is_in $optname $CMDLINE_APPEND; then
1630 append $optname "$optval"
1631 else
1632 die_unknown $opt
1633 fi
1634 ;;
1635 esac
1636 done
1637
1638 disabled logging && logfile=/dev/null
1639
1640 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1641 set >> $logfile
1642
1643 test -n "$cross_prefix" && enable cross_compile
1644
1645 if enabled cross_compile; then
1646 test -n "$arch" && test -n "$target_os" ||
1647 die "Must specify target arch and OS when cross-compiling"
1648 fi
1649
1650 set_default arch target_os
1651
1652 ar_default="${cross_prefix}${ar_default}"
1653 cc_default="${cross_prefix}${cc_default}"
1654 nm_default="${cross_prefix}${nm_default}"
1655 ranlib="${cross_prefix}${ranlib}"
1656 strip_default="${cross_prefix}${strip_default}"
1657
1658 sysinclude_default="${sysroot}/usr/include"
1659
1660 set_default cc nm strip sysinclude
1661 enabled cross_compile || host_cc_default=$cc
1662 set_default host_cc
1663
1664 exesuf() {
1665 case $1 in
1666 mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1667 esac
1668 }
1669
1670 EXESUF=$(exesuf $target_os)
1671 HOSTEXESUF=$(exesuf $host_os)
1672
1673 # set temporary file name
1674 : ${TMPDIR:=$TEMPDIR}
1675 : ${TMPDIR:=$TMP}
1676 : ${TMPDIR:=/tmp}
1677
1678 if ! check_cmd type mktemp; then
1679 # simple replacement for missing mktemp
1680 # NOT SAFE FOR GENERAL USE
1681 mktemp(){
1682 echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1683 }
1684 fi
1685
1686 tmpfile(){
1687 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1688 (set -C; exec > $tmp) 2>/dev/null ||
1689 die "Unable to create temporary file in $TMPDIR."
1690 append TMPFILES $tmp
1691 eval $1=$tmp
1692 }
1693
1694 trap 'rm -f -- $TMPFILES' EXIT
1695 trap exit HUP INT TERM
1696
1697 tmpfile TMPC .c
1698 tmpfile TMPE $EXESUF
1699 tmpfile TMPH .h
1700 tmpfile TMPO .o
1701 tmpfile TMPS .S
1702 tmpfile TMPV .ver
1703 tmpfile TMPSH .sh
1704
1705 unset -f mktemp
1706
1707 # make sure we can execute files in $TMPDIR
1708 cat > $TMPSH 2>> $logfile <<EOF
1709 #! /bin/sh
1710 EOF
1711 chmod +x $TMPSH >> $logfile 2>&1
1712 if ! $TMPSH >> $logfile 2>&1; then
1713 cat <<EOF
1714 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
1715 variable to another directory and make sure that it is not mounted noexec.
1716 EOF
1717 die "Sanity test failed."
1718 fi
1719
1720 filter_cflags=echo
1721 filter_cppflags=echo
1722 filter_asflags=echo
1723
1724 if $cc -v 2>&1 | grep -qi ^gcc; then
1725 cc_type=gcc
1726 cc_version=__VERSION__
1727 if ! $cc -dumpversion | grep -q '^2\.'; then
1728 CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1729 AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1730 fi
1731 speed_cflags='-O3'
1732 size_cflags='-Os'
1733 elif $cc --version 2>/dev/null | grep -q Intel; then
1734 cc_type=icc
1735 cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1736 CC_DEPFLAGS='-MMD'
1737 AS_DEPFLAGS='-MMD'
1738 speed_cflags='-O3'
1739 size_cflags='-Os'
1740 noopt_cflags='-O1'
1741 elif $cc -v 2>&1 | grep -q xlc; then
1742 cc_type=xlc
1743 cc_version="AV_STRINGIFY(__IBMC__)"
1744 speed_cflags='-O5'
1745 size_cflags='-O5 -qcompact'
1746 elif $cc -V 2>/dev/null | grep -q Compaq; then
1747 cc_type=ccc
1748 cc_version="AV_STRINGIFY(__DECC_VER)"
1749 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1750 debuglevel=3
1751 add_ldflags -Wl,-z,now # calls to libots crash without this
1752 speed_cflags='-fast'
1753 size_cflags='-O1'
1754 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1755 test -d "$sysroot" || die "No valid sysroot specified."
1756 cc_type=armcc
1757 cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1758 armcc_conf="$PWD/armcc.conf"
1759 $cc --arm_linux_configure \
1760 --arm_linux_config_file="$armcc_conf" \
1761 --configure_sysroot="$sysroot" \
1762 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1763 die "Error creating armcc configuration file."
1764 cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1765 as_default="${cross_prefix}gcc"
1766 CC_DEPFLAGS='-MMD'
1767 AS_DEPFLAGS='-MMD'
1768 speed_cflags='-O3'
1769 size_cflags='-Os'
1770 elif $cc -version 2>/dev/null | grep -q TMS470; then
1771 cc_type=tms470
1772 cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1773 cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1774 CC_O='-fr=$(@D)'
1775 as_default="${cross_prefix}gcc"
1776 ld_default="${cross_prefix}gcc"
1777 TMPO=$(basename $TMPC .c).o
1778 append TMPFILES $TMPO
1779 add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1780 CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1781 AS_DEPFLAGS='-MMD'
1782 speed_cflags='-O3 -mf=5'
1783 size_cflags='-O3 -mf=2'
1784 filter_cflags=tms470_flags
1785 tms470_flags(){
1786 for flag; do
1787 case $flag in
1788 -march=*|-mcpu=*)
1789 case "${flag#*=}" in
1790 armv7-a|cortex-a*) echo -mv=7a8 ;;
1791 armv7-r|cortex-r*) echo -mv=7r4 ;;
1792 armv7-m|cortex-m*) echo -mv=7m3 ;;
1793 armv6*|arm11*) echo -mv=6 ;;
1794 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1795 echo -mv=5e ;;
1796 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
1797 esac
1798 ;;
1799 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
1800 -mfpu=vfp) echo --float_support=vfpv2 ;;
1801 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
1802 -msoft-float) echo --float_support=vfplib ;;
1803 -O[0-3]|-mf=*) echo $flag ;;
1804 -g) echo -g -mn ;;
1805 -pds=*) echo $flag ;;
1806 esac
1807 done
1808 }
1809 elif $cc -v 2>&1 | grep -q clang; then
1810 cc_type=clang
1811 cc_version=__VERSION__
1812 CC_DEPFLAGS='-MMD'
1813 AS_DEPFLAGS='-MMD'
1814 speed_cflags='-O3'
1815 size_cflags='-Os'
1816 elif $cc -V 2>&1 | grep -q Sun; then
1817 cc_type=suncc
1818 cc_version="AV_STRINGIFY(__SUNPRO_C)"
1819 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1820 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1821 speed_cflags='-O5'
1822 size_cflags='-O5 -xspace'
1823 filter_cflags=suncc_flags
1824 suncc_flags(){
1825 for flag; do
1826 case $flag in
1827 -march=*|-mcpu=*)
1828 case "${flag#*=}" in
1829 native) echo -xtarget=native ;;
1830 v9|niagara) echo -xarch=sparc ;;
1831 ultrasparc) echo -xarch=sparcvis ;;
1832 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
1833 i586|pentium) echo -xchip=pentium ;;
1834 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
1835 pentium3*|c3-2) echo -xtarget=pentium3 ;;
1836 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
1837 pentium4*) echo -xtarget=pentium4 ;;
1838 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
1839 *-sse3) echo -xarch=sse3 ;;
1840 core2) echo -xarch=ssse3 -xchip=core2 ;;
1841 amdfam10|barcelona) echo -xarch=sse4_1 ;;
1842 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
1843 k8|opteron|athlon64|athlon-fx)
1844 echo -xarch=sse2a ;;
1845 athlon*) echo -xarch=pentium_proa ;;
1846 esac
1847 ;;
1848 -std=c99) echo -xc99 ;;
1849 -fomit-frame-pointer) echo -xregs=frameptr ;;
1850 -fPIC) echo -KPIC -xcode=pic32 ;;
1851 -W*,*) echo $flag ;;
1852 -f*-*|-W*) ;;
1853 *) echo $flag ;;
1854 esac
1855 done
1856 }
1857 fi
1858
1859 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1860
1861 : ${as_default:=$cc}
1862 : ${dep_cc_default:=$cc}
1863 : ${ld_default:=$cc}
1864 set_default ar as dep_cc ld
1865
1866 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1867 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1868
1869 add_cflags $extra_cflags
1870 add_asflags $extra_cflags
1871
1872 if test -n "$sysroot"; then
1873 case "$cc_type" in
1874 gcc)
1875 add_cppflags --sysroot="$sysroot"
1876 add_ldflags --sysroot="$sysroot"
1877 ;;
1878 tms470)
1879 add_cppflags -I"$sysinclude"
1880 add_ldflags --sysroot="$sysroot"
1881 ;;
1882 clang)
1883 add_cppflags -isysroot "$sysroot"
1884 add_ldflags -isysroot "$sysroot"
1885 ;;
1886 esac
1887 fi
1888
1889 if test "$cpu" = host; then
1890 enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1891
1892 case "$cc_type" in
1893 gcc)
1894 check_native(){
1895 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1896 sed -n "/$1=/{
1897 s/.*$1=\\([^ ]*\\).*/\\1/
1898 p
1899 q
1900 }" $TMPE
1901 }
1902 cpu=$(check_native -march || check_native -mcpu)
1903 ;;
1904 esac
1905
1906 test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1907 fi
1908
1909 # Deal with common $arch aliases
1910 case "$arch" in
1911 arm*)
1912 arch="arm"
1913 ;;
1914 mips|mipsel|IP*)
1915 arch="mips"
1916 ;;
1917 mips64*)
1918 arch="mips"
1919 subarch="mips64"
1920 ;;
1921 parisc|hppa)
1922 arch="parisc"
1923 ;;
1924 parisc64|hppa64)
1925 arch="parisc"
1926 subarch="parisc64"
1927 ;;
1928 "Power Macintosh"|ppc|powerpc)
1929 arch="ppc"
1930 ;;
1931 ppc64|powerpc64)
1932 arch="ppc"
1933 subarch="ppc64"
1934 ;;
1935 s390|s390x)
1936 arch="s390"
1937 ;;
1938 sh4|sh)
1939 arch="sh4"
1940 ;;
1941 sun4u|sparc64)
1942 arch="sparc"
1943 subarch="sparc64"
1944 ;;
1945 i[3-6]86|i86pc|BePC|x86_64|amd64)
1946 arch="x86"
1947 ;;
1948 esac
1949
1950 is_in $arch $ARCH_LIST || echo "WARNING: unknown arch $arch"
1951 enable $arch
1952
1953 # Add processor-specific flags
1954 if test "$cpu" = generic; then
1955 : do nothing
1956 elif enabled ppc; then
1957
1958 case $(tolower $cpu) in
1959 601|ppc601|powerpc601)
1960 cpuflags="-mcpu=601"
1961 disable altivec
1962 ;;
1963 603*|ppc603*|powerpc603*)
1964 cpuflags="-mcpu=603"
1965 disable altivec
1966 ;;
1967 604*|ppc604*|powerpc604*)
1968 cpuflags="-mcpu=604"
1969 disable altivec
1970 ;;
1971 g3|75*|ppc75*|powerpc75*)
1972 cpuflags="-mcpu=750 -mpowerpc-gfxopt"
1973 disable altivec
1974 ;;
1975 g4|745*|ppc745*|powerpc745*)
1976 cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
1977 ;;
1978 74*|ppc74*|powerpc74*)
1979 cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
1980 ;;
1981 g5|970|ppc970|powerpc970|power4*)
1982 cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1983 ;;
1984 cell)
1985 cpuflags="-mcpu=cell"
1986 enable ldbrx
1987 ;;
1988 e500v2)
1989 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
1990 disable altivec
1991 ;;
1992 e500)
1993 cpuflags="-mcpu=8540 -mhard-float"
1994 disable altivec
1995 ;;
1996 esac
1997
1998 elif enabled x86; then
1999
2000 case $cpu in
2001 i[345]86|pentium)
2002 cpuflags="-march=$cpu"
2003 disable mmx
2004 ;;
2005 # targets that do NOT support conditional mov (cmov)
2006 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2007 cpuflags="-march=$cpu"
2008 disable cmov
2009 ;;
2010 # targets that do support conditional mov (cmov)
2011 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona)
2012 cpuflags="-march=$cpu"
2013 enable cmov
2014 enable fast_cmov
2015 ;;
2016 # targets that do support conditional mov but on which it's slow
2017 pentium4|pentium4m|prescott|nocona)
2018 cpuflags="-march=$cpu"
2019 enable cmov
2020 disable fast_cmov
2021 ;;
2022 esac
2023
2024 elif enabled sparc; then
2025
2026 case $cpu in
2027 niagara)
2028 cpuflags="-mcpu=$cpu"
2029 disable vis
2030 ;;
2031 sparc64)
2032 cpuflags="-mcpu=v9"
2033 ;;
2034 esac
2035
2036 elif enabled arm; then
2037
2038 case $cpu in
2039 armv*)
2040 cpuflags="-march=$cpu"
2041 ;;
2042 *)
2043 cpuflags="-mcpu=$cpu"
2044 ;;
2045 esac
2046
2047 elif enabled alpha; then
2048
2049 enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2050
2051 elif enabled bfin; then
2052
2053 cpuflags="-mcpu=$cpu"
2054
2055 elif enabled mips; then
2056
2057 cpuflags="-march=$cpu"
2058
2059 elif enabled avr32; then
2060
2061 case $cpu in
2062 ap7[02]0[0-2])
2063 subarch="avr32_ap"
2064 cpuflags="-mpart=$cpu"
2065 ;;
2066 ap)
2067 subarch="avr32_ap"
2068 cpuflags="-march=$cpu"
2069 ;;
2070 uc3[ab]*)
2071 subarch="avr32_uc"
2072 cpuflags="-mcpu=$cpu"
2073 ;;
2074 uc)
2075 subarch="avr32_uc"
2076 cpuflags="-march=$cpu"
2077 ;;
2078 esac
2079
2080 fi
2081
2082 add_cflags $cpuflags
2083 add_asflags $cpuflags
2084
2085 # compiler sanity check
2086 check_exec <<EOF
2087 int main(void){ return 0; }
2088 EOF
2089 if test "$?" != 0; then
2090 echo "$cc is unable to create an executable file."
2091 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2092 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2093 echo "Only do this if you know what cross compiling means."
2094 fi
2095 die "C compiler test failed."
2096 fi
2097
2098 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2099 check_cflags -std=c99
2100 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2101 #include <stdlib.h>
2102 EOF
2103 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2104 #include <stdlib.h>
2105 EOF
2106
2107 check_host_cflags -std=c99
2108
2109 case "$arch" in
2110 alpha|ia64|mips|parisc|sparc)
2111 spic=$shared
2112 ;;
2113 x86)
2114 subarch="x86_32"
2115 check_cc <<EOF && subarch="x86_64"
2116 int test[(int)sizeof(char*) - 7];
2117 EOF
2118 if test "$subarch" = "x86_64"; then
2119 spic=$shared
2120 fi
2121 ;;
2122 esac
2123
2124 enable $subarch
2125 enabled spic && enable pic
2126
2127 # OS specific
2128 case $target_os in
2129 haiku)
2130 prefix_default="/boot/common"
2131 network_extralibs="-lnetwork"
2132 ;;
2133 sunos)
2134 FFSERVERLDFLAGS=""
2135 SHFLAGS='-shared -Wl,-h,$$(@F)'
2136 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2137 network_extralibs="-lsocket -lnsl"
2138 add_cppflags -D__EXTENSIONS__
2139 nm_opts='-P -g'
2140 ;;
2141 netbsd)
2142 oss_indev_extralibs="-lossaudio"
2143 oss_outdev_extralibs="-lossaudio"
2144 add_cppflags -D_XOPEN_SOURCE=600
2145 ;;
2146 openbsd)
2147 enable malloc_aligned
2148 # On OpenBSD 4.5. the compiler does not use PIC unless
2149 # explicitly using -fPIC. FFmpeg builds fine without PIC,
2150 # however the generated executable will not do anything
2151 # (simply quits with exit-code 1, no crash, no output).
2152 # Thus explicitly enable PIC here.
2153 enable pic
2154 SHFLAGS='-shared'
2155 oss_indev_extralibs="-lossaudio"
2156 oss_outdev_extralibs="-lossaudio"
2157 ;;
2158 freebsd|dragonfly)
2159 enable malloc_aligned
2160 ;;
2161 bsd/os)
2162 osextralibs="-lpoll -lgnugetopt"
2163 strip="strip -d"
2164 ;;
2165 darwin)
2166 enable malloc_aligned
2167 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2168 strip="${strip} -x"
2169 FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
2170 SLIBSUF=".dylib"
2171 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2172 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2173 FFSERVERLDFLAGS=-Wl,-bind_at_load
2174 objformat="macho"
2175 enabled x86_64 && objformat="macho64"
2176 enabled_any pic shared ||
2177 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2178 ;;
2179 mingw32*)
2180 if test $target_os = "mingw32ce"; then
2181 disable network
2182 else
2183 target_os=mingw32
2184 fi
2185 LIBTARGET=i386
2186 if enabled x86_64; then
2187 enable malloc_aligned
2188 LIBTARGET=x64
2189 elif enabled arm; then
2190 LIBTARGET=arm
2191 fi
2192 shlibdir_default="$bindir_default"
2193 disable ffserver
2194 SLIBPREF=""
2195 SLIBSUF=".dll"
2196 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2197 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2198 SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2199 SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2200 install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2201 install -d "$(LIBDIR)"; \
2202 install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2203 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2204 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2205 objformat="win32"
2206 enable dos_paths
2207 check_cflags -fno-common
2208 if ! enabled x86_64; then
2209 check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2210 die "ERROR: MinGW runtime version must be >= 3.15."
2211 enabled_any avisynth vfwcap_indev &&
2212 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
2213 die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
2214 fi
2215 ;;
2216 cygwin*)
2217 target_os=cygwin
2218 shlibdir_default="$bindir_default"
2219 SLIBPREF="cyg"
2220 SLIBSUF=".dll"
2221 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2222 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2223 SHFLAGS='-shared -Wl,--enable-auto-image-base'
2224 objformat="win32"
2225 enable dos_paths
2226 check_cflags -fno-common
2227 ;;
2228 *-dos|freedos|opendos)
2229 disable ffplay ffserver
2230 disable $INDEV_LIST $OUTDEV_LIST
2231 network_extralibs="-lsocket"
2232 objformat="coff"
2233 enable dos_paths
2234 ;;
2235 linux)
2236 enable dv1394
2237 ;;
2238 irix*)
2239 target_os=irix
2240 ranlib="echo ignoring ranlib"
2241 ;;
2242 os/2*)
2243 strip="lxlite"
2244 ln_s="cp -f"
2245 FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
2246 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2247 FFSERVERLDFLAGS=""
2248 LIBSUF="_s.a"
2249 SLIBPREF=""
2250 SLIBSUF=".dll"
2251 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2252 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2253 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2254 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2255 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2256 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2257 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2258 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2259 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2260 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2261 SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2262 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2263 enable dos_paths
2264 ;;
2265 gnu/kfreebsd)
2266 ;;
2267 gnu)
2268 ;;
2269 none)
2270 ;;
2271 *)
2272 die "Unknown OS '$target_os'."
2273 ;;
2274 esac
2275
2276 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2277
2278 set_default $PATHS_LIST
2279
2280 add_extralibs $osextralibs
2281
2282 # Combine FFLDFLAGS and the LDFLAGS environment variable.
2283 LDFLAGS="$FFLDFLAGS $LDFLAGS"
2284
2285 # we need to build at least one lib type
2286 if ! enabled_any static shared; then
2287 cat <<EOF
2288 At least one library type must be built.
2289 Specify --enable-static to build the static libraries or --enable-shared to
2290 build the shared libraries as well. To only build the shared libraries specify
2291 --disable-static in addition to --enable-shared.
2292 EOF
2293 exit 1;
2294 fi
2295
2296 disabled static && LIBNAME=""
2297
2298 die_license_disabled() {
2299 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2300 }
2301
2302 die_license_disabled gpl libx264
2303 die_license_disabled gpl libxvid
2304 die_license_disabled gpl postproc
2305 die_license_disabled gpl x11grab
2306
2307 die_license_disabled nonfree libfaac
2308
2309 die_license_disabled version3 libopencore_amrnb
2310 die_license_disabled version3 libopencore_amrwb
2311
2312 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2313
2314 check_deps $ARCH_EXT_LIST
2315
2316 disabled optimizations || check_cflags -fomit-frame-pointer
2317
2318 enable_pic() {
2319 enable pic
2320 add_cppflags -DPIC
2321 add_cflags -fPIC
2322 add_asflags -fPIC
2323 }
2324
2325 enabled pic && enable_pic
2326
2327 check_cc <<EOF || die "Symbol mangling check failed."
2328 int ff_extern;
2329 EOF
2330 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2331 extern_prefix=${sym%%ff_extern*}
2332
2333 check_cc <<EOF && enable inline_asm
2334 void foo(void) { __asm__ volatile ("" ::); }
2335 EOF
2336
2337 _restrict=
2338 for restrict_keyword in restrict __restrict__ __restrict; do
2339 check_cc <<EOF && _restrict=$restrict_keyword && break
2340 void foo(char * $restrict_keyword p);
2341 EOF
2342 done
2343
2344 check_cc <<EOF && enable attribute_packed
2345 struct { int x; } __attribute__((packed)) x;
2346 EOF
2347
2348 check_cc <<EOF && enable attribute_may_alias
2349 union { int x; } __attribute__((may_alias)) x;
2350 EOF
2351
2352 check_cc <<EOF || die "endian test failed"
2353 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2354 EOF
2355 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2356
2357 if enabled alpha; then
2358
2359 check_cflags -mieee
2360
2361 elif enabled arm; then
2362
2363 check_cflags -marm
2364
2365 check_ld <<EOF && enable vfp_args
2366 __asm__ (".eabi_attribute 28, 1");
2367 int main(void) { return 0; }
2368 EOF
2369
2370 # We have to check if pld is a nop and disable it.
2371 check_asm pld '"pld [r0]"'
2372
2373 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2374 enabled armv6 && check_asm armv6 '"sadd16 r0, r0, r0"'
2375 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2376 enabled armvfp && check_asm armvfp '"fadds s0, s0, s0"'
2377 enabled iwmmxt && check_asm iwmmxt '"wunpckelub wr6, wr4"'
2378 enabled neon && check_asm neon '"vadd.i16 q0, q0, q0"'
2379
2380 enabled_all armv6t2 shared !pic && enable_pic
2381
2382 elif enabled mips; then
2383
2384 check_asm loongson '"dmult.g $1, $2, $3"'
2385 enabled mmi && check_asm mmi '"lq $2, 0($2)"'
2386
2387 elif enabled ppc; then
2388
2389 enable local_aligned_8 local_aligned_16
2390
2391 check_asm dcbzl '"dcbzl 0, 1"'
2392 check_asm ppc4xx '"maclhw r10, r11, r12"'
2393 check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2394
2395 # AltiVec flags: The FSF version of GCC differs from the Apple version
2396 if enabled altivec; then
2397 check_cflags -maltivec -mabi=altivec &&
2398 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2399 check_cflags -faltivec
2400
2401 # check if our compiler supports Motorola AltiVec C API
2402 check_cc <<EOF || disable altivec
2403 $inc_altivec_h
2404 int main(void) {
2405 vector signed int v1, v2, v3;
2406 v1 = vec_add(v2,v3);
2407 return 0;
2408 }
2409 EOF
2410
2411 # check if our compiler supports braces for vector declarations
2412 check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2413 $inc_altivec_h
2414 int main (void) { (vector int) {1}; return 0; }
2415 EOF
2416 fi
2417
2418 elif enabled sparc; then
2419
2420 enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2421 add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2422
2423 elif enabled x86; then
2424
2425 enable local_aligned_8 local_aligned_16
2426
2427 # check whether EBP is available on x86
2428 # As 'i' is stored on the stack, this program will crash
2429 # if the base pointer is used to access it because the
2430 # base pointer is cleared in the inline assembly code.
2431 check_exec_crash <<EOF && enable ebp_available
2432 volatile int i=0;
2433 __asm__ volatile (
2434 "xorl %%ebp, %%ebp"
2435 ::: "%ebp");
2436 return i;
2437 EOF
2438
2439 # check whether EBX is available on x86
2440 check_asm ebx_available '""::"b"(0)' &&
2441 check_asm ebx_available '"":::"%ebx"'
2442
2443 # check whether more than 10 operands are supported
2444 check_cc <<EOF && enable ten_operands
2445 int main(void) {
2446 int x=0;
2447 __asm__ volatile(
2448 ""
2449 :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2450 );
2451 return 0;
2452 }
2453 EOF
2454
2455 # check whether binutils is new enough to compile SSSE3/MMX2
2456 enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2457 enabled mmx2 && check_asm mmx2 '"pmaxub %mm0, %mm1"'
2458
2459 check_asm bswap '"bswap %%eax" ::: "%eax"'
2460
2461 YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2462 enabled x86_64 && append YASMFLAGS "-m amd64"
2463 enabled pic && append YASMFLAGS "-DPIC"
2464 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
2465 case "$objformat" in
2466 elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2467 esac
2468 disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
2469
2470 case "$cpu" in
2471 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2472 disable fast_clz
2473 ;;
2474 esac
2475
2476 fi
2477
2478 if check_func dlopen; then
2479 ldl=
2480 elif check_func dlopen -ldl; then
2481 ldl=-ldl
2482 fi
2483
2484 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2485 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2486
2487 check_func fork
2488 check_func getaddrinfo $network_extralibs
2489 check_func gethrtime
2490 check_func getrusage
2491 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2492 check_func inet_aton $network_extralibs
2493 check_func isatty
2494 check_func ${malloc_prefix}memalign && enable memalign
2495 check_func mkstemp
2496 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
2497 check_func setrlimit
2498 check_func strerror_r
2499 check_func_headers io.h setmode
2500 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2501 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2502 check_func_headers windows.h GetProcessTimes
2503 check_func_headers windows.h VirtualAlloc
2504
2505 check_header conio.h
2506 check_header dlfcn.h
2507 check_header dxva2api.h
2508 check_header malloc.h
2509 check_header poll.h
2510 check_header sys/mman.h
2511 check_header sys/resource.h
2512 check_header sys/select.h
2513 check_header termios.h
2514 check_header vdpau/vdpau.h
2515 check_header vdpau/vdpau_x11.h
2516 check_header X11/extensions/XvMClib.h
2517
2518 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2519
2520 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2521 enabled_any $need_memalign ; then
2522 die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2523 fi
2524
2525 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
2526 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2527
2528 # check for some common methods of building with pthread support
2529 # do this before the optional library checks as some of them require pthreads
2530 if ! disabled pthreads && ! enabled w32threads; then
2531 enable pthreads
2532 if check_func pthread_create; then
2533 :
2534 elif check_func pthread_create -pthread; then
2535 add_cflags -pthread
2536 add_extralibs -pthread
2537 elif check_func pthread_create -pthreads; then
2538 add_cflags -pthreads
2539 add_extralibs -pthreads
2540 elif check_func pthread_create -lpthreadGC2; then
2541 add_extralibs -lpthreadGC2
2542 elif ! check_lib pthread.h pthread_create -lpthread; then
2543 disable pthreads
2544 fi
2545 fi
2546
2547 for thread in $THREADS_LIST; do
2548 if enabled $thread; then
2549 test -n "$thread_type" &&
2550 die "ERROR: Only one thread type must be selected." ||
2551 thread_type="$thread"
2552 fi
2553 done
2554
2555 check_lib math.h sin -lm
2556 disabled vaapi || check_lib va/va.h vaInitialize -lva
2557
2558 check_mathfunc exp2
2559 check_mathfunc exp2f
2560 check_mathfunc llrint
2561 check_mathfunc llrintf
2562 check_mathfunc log2
2563 check_mathfunc log2f
2564 check_mathfunc lrint
2565 check_mathfunc lrintf
2566 check_mathfunc round
2567 check_mathfunc roundf
2568 check_mathfunc truncf
2569
2570 # these are off by default, so fail if requested and not available
2571 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2572 enabled libdirac && add_cflags $(pkg-config --cflags dirac) &&
2573 require libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2574 require libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2575 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2576 enabled libgsm && require libgsm gsm/gsm.h gsm_create -lgsm
2577 enabled libmp3lame && require libmp3lame lame/lame.h lame_init -lmp3lame -lm
2578 enabled libnut && require libnut libnut.h nut_demuxer_init -lnut
2579 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2580 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2581 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2582 enabled librtmp && require librtmp librtmp/rtmp.h RTMP_Init $(pkg-config --libs librtmp)
2583 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2584 require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2585 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
2586 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2587 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2588 enabled libvpx && require2 libvpx "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_dec_init_ver" -lvpx &&
2589 require2 libvpx "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver" -lvpx
2590 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 -lm &&
2591 { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2592 die "ERROR: libx264 version must be >= 0.98."; }
2593 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
2594 enabled mlib && require mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2595
2596 # libdc1394 check
2597 if enabled libdc1394; then
2598 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2599 enable libdc1394_2; } ||
2600 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2601 enable libdc1394_1; } ||
2602 die "ERROR: No version of libdc1394 found "
2603 fi
2604
2605 SDL_CONFIG="${cross_prefix}sdl-config"
2606 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2607 sdl_cflags=$("${SDL_CONFIG}" --cflags)
2608 sdl_libs=$("${SDL_CONFIG}" --libs)
2609 check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2610 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2611 enable sdl &&
2612 check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2613 fi
2614
2615 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2616
2617 if enabled network; then
2618 check_type "sys/types.h sys/socket.h" socklen_t
2619 check_type netdb.h "struct addrinfo"
2620 check_type netinet/in.h "struct ipv6_mreq"
2621 check_type netinet/in.h "struct sockaddr_in6"
2622 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2623 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2624 # Prefer arpa/inet.h over winsock2
2625 if check_header arpa/inet.h ; then
2626 check_func closesocket
2627 elif check_header winsock2.h ; then
2628 check_func_headers winsock2.h closesocket -lws2 && \
2629 network_extralibs="-lws2" || \
2630 { check_func_headers winsock2.h closesocket -lws2_32 && \
2631 network_extralibs="-lws2_32"; }
2632 check_type ws2tcpip.h socklen_t
2633 check_type ws2tcpip.h "struct addrinfo"
2634 check_type ws2tcpip.h "struct ipv6_mreq"
2635 check_type ws2tcpip.h "struct sockaddr_in6"
2636 check_type ws2tcpip.h "struct sockaddr_storage"
2637 check_struct winsock2.h "struct sockaddr" sa_len
2638 else
2639 disable network
2640 fi
2641 fi
2642
2643 check_header linux/videodev.h
2644 check_header linux/videodev2.h
2645 check_header sys/videoio.h
2646
2647 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2648
2649 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2650 { check_header dev/bktr/ioctl_meteor.h &&
2651 check_header dev/bktr/ioctl_bt848.h; } ||
2652 { check_header machine/ioctl_meteor.h &&
2653 check_header machine/ioctl_bt848.h; } ||
2654 { check_header dev/video/meteor/ioctl_meteor.h &&
2655 check_header dev/video/bktr/ioctl_bt848.h; } ||
2656 check_header dev/ic/bt8xx.h
2657
2658 check_header sys/soundcard.h
2659 check_header soundcard.h
2660
2661 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2662
2663 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2664
2665 enabled x11grab &&
2666 check_header X11/Xlib.h &&
2667 check_header X11/extensions/XShm.h &&
2668 check_header X11/extensions/Xfixes.h &&
2669 check_func XOpenDisplay -lX11 &&
2670 check_func XShmCreateImage -lX11 -lXext &&
2671 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2672
2673 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2674 check_cpp_condition \
2675 vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2676 { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2677 disable vdpau; }
2678 fi
2679
2680 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2681
2682 # add some useful compiler flags if supported
2683 check_cflags -Wdeclaration-after-statement
2684 check_cflags -Wall
2685 check_cflags -Wno-switch
2686 check_cflags -Wdisabled-optimization
2687 check_cflags -Wpointer-arith
2688 check_cflags -Wredundant-decls
2689 check_cflags -Wno-pointer-sign
2690 check_cflags -Wcast-qual
2691 check_cflags -Wwrite-strings
2692 check_cflags -Wtype-limits
2693 check_cflags -Wundef
2694 check_cflags -Wmissing-prototypes
2695 enabled extra_warnings && check_cflags -Winline
2696
2697 # add some linker flags
2698 check_ldflags -Wl,--warn-common
2699 check_ldflags -Wl,--as-needed
2700 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'
2701 check_ldflags -Wl,-Bsymbolic
2702
2703 echo "X{};" > $TMPV
2704 if test_ldflags -Wl,--version-script,$TMPV; then
2705 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2706 check_cc <<EOF && enable symver_asm_label
2707 void ff_foo(void) __asm__ ("av_foo@VERSION");
2708 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2709 EOF
2710 check_cc <<EOF && enable symver_gnu_asm
2711 __asm__(".symver ff_foo,av_foo@VERSION");
2712 void ff_foo(void) {}
2713 EOF
2714 fi
2715
2716 if enabled small; then
2717 add_cflags $size_cflags
2718 optimizations="small"
2719 elif enabled optimizations; then
2720 add_cflags $speed_cflags
2721 else
2722 add_cflags $noopt_cflags
2723 fi
2724 check_cflags -fno-math-errno
2725 check_cflags -fno-signed-zeros
2726
2727 if enabled icc; then
2728 # Just warnings, no remarks
2729 check_cflags -w1
2730 # -wd: Disable following warnings
2731 # 144, 167, 556: -Wno-pointer-sign
2732 # 10006: ignoring unknown option -fno-signed-zeros
2733 # 10156: ignoring option '-W'; no argument required
2734 check_cflags -wd144,167,556,10006,10156
2735 # 11030: Warning unknown option --as-needed
2736 # 10156: ignoring option '-export'; no argument required
2737 check_ldflags -wd10156,11030
2738 # Allow to compile with optimizations
2739 check_ldflags -march=$cpu
2740 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2741 enable ebp_available
2742 elif enabled ccc; then
2743 # disable some annoying warnings
2744 add_cflags -msg_disable cvtu32to64
2745 add_cflags -msg_disable embedcomment
2746 add_cflags -msg_disable needconstext
2747 add_cflags -msg_disable nomainieee
2748 add_cflags -msg_disable ptrmismatch1
2749 add_cflags -msg_disable unreachcode
2750 elif enabled gcc; then
2751 check_cflags -fno-tree-vectorize
2752 check_cflags -Werror=implicit
2753 check_cflags -Werror=missing-prototypes
2754 elif enabled clang; then
2755 check_cflags -Qunused-arguments
2756 elif enabled armcc; then
2757 # 2523: use of inline assembler is deprecated
2758 add_cflags -Wrvct,--diag_suppress=2523
2759 add_cflags -Wrvct,--diag_suppress=1207
2760 elif enabled tms470; then
2761 add_cflags -pds=824 -pds=837
2762 fi
2763
2764 if enabled gprof; then
2765 add_cflags -p
2766 add_ldflags -p
2767 fi
2768
2769 enabled_any $THREADS_LIST && enable threads
2770
2771 check_deps $CONFIG_LIST \
2772 $CONFIG_EXTRA \
2773 $HAVE_LIST \
2774 $DECODER_LIST \
2775 $ENCODER_LIST \
2776 $HWACCEL_LIST \
2777 $PARSER_LIST \
2778 $BSF_LIST \
2779 $DEMUXER_LIST \
2780 $MUXER_LIST \
2781 $FILTER_LIST \
2782 $INDEV_LIST \
2783 $OUTDEV_LIST \
2784 $PROTOCOL_LIST \
2785
2786 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2787
2788 echo "install prefix $prefix"
2789 echo "source path $source_path"
2790 echo "C compiler $cc"
2791 echo "ARCH $arch ($cpu)"
2792 if test "$build_suffix" != ""; then
2793 echo "build suffix $build_suffix"
2794 fi
2795 if test "$extra_version" != ""; then
2796 echo "version string suffix $extra_version"
2797 fi
2798 echo "big-endian ${bigendian-no}"
2799 echo "runtime cpu detection ${runtime_cpudetect-no}"
2800 if enabled x86; then
2801 echo "yasm ${yasm-no}"
2802 echo "MMX enabled ${mmx-no}"
2803 echo "MMX2 enabled ${mmx2-no}"
2804 echo "3DNow! enabled ${amd3dnow-no}"
2805 echo "3DNow! extended enabled ${amd3dnowext-no}"
2806 echo "SSE enabled ${sse-no}"
2807 echo "SSSE3 enabled ${ssse3-no}"
2808 echo "CMOV enabled ${cmov-no}"
2809 echo "CMOV is fast ${fast_cmov-no}"
2810 echo "EBX available ${ebx_available-no}"
2811 echo "EBP available ${ebp_available-no}"
2812 echo "10 operands supported ${ten_operands-no}"
2813 fi
2814 if enabled arm; then
2815 echo "ARMv5TE enabled ${armv5te-no}"
2816 echo "ARMv6 enabled ${armv6-no}"
2817 echo "ARMv6T2 enabled ${armv6t2-no}"
2818 echo "ARM VFP enabled ${armvfp-no}"
2819 echo "IWMMXT enabled ${iwmmxt-no}"
2820 echo "NEON enabled ${neon-no}"
2821 fi
2822 if enabled mips; then
2823 echo "MMI enabled ${mmi-no}"
2824 fi
2825 if enabled ppc; then
2826 echo "AltiVec enabled ${altivec-no}"
2827 echo "PPC 4xx optimizations ${ppc4xx-no}"
2828 echo "dcbzl available ${dcbzl-no}"
2829 echo "performance report ${powerpc_perf-no}"
2830 fi
2831 if enabled sparc; then
2832 echo "VIS enabled ${vis-no}"
2833 fi
2834 echo "gprof enabled ${gprof-no}"
2835 echo "debug symbols ${debug-no}"
2836 echo "strip symbols ${stripping-no}"
2837 echo "optimizations ${optimizations-no}"
2838 echo "static ${static-no}"
2839 echo "shared ${shared-no}"
2840 echo "postprocessing support ${postproc-no}"
2841 echo "new filter support ${avfilter-no}"
2842 echo "filters using lavformat ${avfilter_lavf-no}"
2843 echo "network support ${network-no}"
2844 echo "threading support ${thread_type-no}"
2845 echo "SDL support ${sdl-no}"
2846 echo "Sun medialib support ${mlib-no}"
2847 echo "AVISynth enabled ${avisynth-no}"
2848 echo "libdc1394 support ${libdc1394-no}"
2849 echo "libdirac enabled ${libdirac-no}"
2850 echo "libfaac enabled ${libfaac-no}"
2851 echo "libgsm enabled ${libgsm-no}"
2852 echo "libmp3lame enabled ${libmp3lame-no}"
2853 echo "libnut enabled ${libnut-no}"
2854 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2855 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2856 echo "libopenjpeg enabled ${libopenjpeg-no}"
2857 echo "librtmp enabled ${librtmp-no}"
2858 echo "libschroedinger enabled ${libschroedinger-no}"
2859 echo "libspeex enabled ${libspeex-no}"
2860 echo "libtheora enabled ${libtheora-no}"
2861 echo "libvorbis enabled ${libvorbis-no}"
2862 echo "libvpx enabled ${libvpx-no}"
2863 echo "libx264 enabled ${libx264-no}"
2864 echo "libxvid enabled ${libxvid-no}"
2865 echo "zlib enabled ${zlib-no}"
2866 echo "bzlib enabled ${bzlib-no}"
2867 echo
2868
2869 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2870 echo "Enabled ${type}s:"
2871 eval list=\$$(toupper $type)_LIST
2872 for part in $list; do
2873 enabled $part && echo ${part%_*}
2874 done | sort | pr -3 -t
2875 echo
2876 done
2877
2878 license="LGPL version 2.1 or later"
2879 if enabled nonfree; then
2880 license="nonfree and unredistributable"
2881 elif enabled gplv3; then
2882 license="GPL version 3 or later"
2883 elif enabled lgplv3; then
2884 license="LGPL version 3 or later"
2885 elif enabled gpl; then
2886 license="GPL version 2 or later"
2887 fi
2888
2889 echo "License: $license"
2890
2891 echo "Creating config.mak and config.h..."
2892
2893 # build tree in object directory if source path is different from current one
2894 if enabled source_path_used; then
2895 DIRS="
2896 doc
2897 libavcodec
2898 libavcodec/$arch
2899 libavdevice
2900 libavfilter
2901 libavformat
2902 libavutil
2903 libavutil/$arch
2904 libpostproc
2905 libswscale
2906 libswscale/$arch
2907 tests
2908 tools
2909 "
2910 FILES="
2911 Makefile
2912 common.mak
2913 subdir.mak
2914 doc/texi2pod.pl
2915 libavcodec/Makefile
2916 libavcodec/${arch}/Makefile
2917 libavdevice/Makefile
2918 libavfilter/Makefile
2919 libavformat/Makefile
2920 libavutil/Makefile
2921 libpostproc/Makefile
2922 libswscale/Makefile
2923 "
2924 map 'mkdir -p $v' $DIRS;
2925 map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
2926 fi
2927
2928 enabled stripping || strip="echo skipping strip"
2929
2930 cat > config.mak <<EOF
2931 # Automatically generated by configure - do not modify!
2932 ifndef FFMPEG_CONFIG_MAK
2933 FFMPEG_CONFIG_MAK=1
2934 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
2935 prefix=$prefix
2936 LIBDIR=\$(DESTDIR)$libdir
2937 SHLIBDIR=\$(DESTDIR)$shlibdir
2938 INCDIR=\$(DESTDIR)$incdir
2939 BINDIR=\$(DESTDIR)$bindir
2940 DATADIR=\$(DESTDIR)$datadir
2941 MANDIR=\$(DESTDIR)$mandir
2942 SRC_PATH="$source_path"
2943 SRC_PATH_BARE=$source_path
2944 BUILD_ROOT="$PWD"
2945 ARCH=$arch
2946 CC=$cc
2947 AS=$as
2948 LD=$ld
2949 DEPCC=$dep_cc
2950 YASM=$yasmexe
2951 YASMDEP=$yasmexe
2952 AR=$ar
2953 RANLIB=$ranlib
2954 CP=cp -p
2955 LN_S=$ln_s
2956 STRIP=$strip
2957 CPPFLAGS=$CPPFLAGS
2958 CFLAGS=$CFLAGS
2959 ASFLAGS=$ASFLAGS
2960 CC_O=$CC_O
2961 LDFLAGS=$LDFLAGS
2962 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
2963 SHFLAGS=$SHFLAGS
2964 YASMFLAGS=$YASMFLAGS
2965 BUILDSUF=$build_suffix
2966 FULLNAME=$FULLNAME
2967 LIBPREF=$LIBPREF
2968 LIBSUF=$LIBSUF
2969 LIBNAME=$LIBNAME
2970 SLIBPREF=$SLIBPREF
2971 SLIBSUF=$SLIBSUF
2972 EXESUF=$EXESUF
2973 EXTRA_VERSION=$extra_version
2974 DEPFLAGS=$DEPFLAGS
2975 CCDEP=$CCDEP
2976 ASDEP=$ASDEP
2977 CC_DEPFLAGS=$CC_DEPFLAGS
2978 AS_DEPFLAGS=$AS_DEPFLAGS
2979 HOSTCC=$host_cc
2980 HOSTCFLAGS=$host_cflags
2981 HOSTEXESUF=$HOSTEXESUF
2982 HOSTLDFLAGS=$host_ldflags
2983 HOSTLIBS=$host_libs
2984 TARGET_EXEC=$target_exec
2985 TARGET_PATH=$target_path
2986 SDL_LIBS=$sdl_libs
2987 SDL_CFLAGS=$sdl_cflags
2988 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
2989 EXTRALIBS=$extralibs
2990 INSTALL=install
2991 LIBTARGET=${LIBTARGET}
2992 SLIBNAME=${SLIBNAME}
2993 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
2994 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
2995 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
2996 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
2997 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
2998 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
2999 SAMPLES=$samples
3000 EOF
3001
3002 get_version(){
3003 name=$1
3004 file=$source_path/$2
3005 eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3006 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3007 lcname=$(tolower $name)
3008 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3009 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3010 }
3011
3012 get_version LIBSWSCALE libswscale/swscale.h
3013 get_version LIBPOSTPROC libpostproc/postprocess.h
3014 get_version LIBAVCODEC libavcodec/avcodec.h
3015 get_version LIBAVDEVICE libavdevice/avdevice.h
3016 get_version LIBAVFORMAT libavformat/avformat.h
3017 get_version LIBAVUTIL libavutil/avutil.h
3018 get_version LIBAVFILTER libavfilter/avfilter.h
3019
3020 cat > $TMPH <<EOF
3021 /* Automatically generated by configure - do not modify! */
3022 #ifndef FFMPEG_CONFIG_H
3023 #define FFMPEG_CONFIG_H
3024 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3025 #define FFMPEG_LICENSE "$(c_escape $license)"
3026 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3027 #define CC_TYPE "$cc_type"
3028 #define CC_VERSION $cc_version
3029 #define restrict $_restrict
3030 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3031 #define EXTERN_PREFIX "${extern_prefix}"
3032 #define EXTERN_ASM ${extern_prefix}
3033 EOF
3034
3035 test -n "$malloc_prefix" &&
3036 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3037
3038 if enabled small || disabled optimizations; then
3039 echo "#undef av_always_inline" >> $TMPH
3040 echo "#define av_always_inline" >> $TMPH
3041 fi
3042
3043 print_config ARCH_ $TMPH config.mak $ARCH_LIST
3044 print_config HAVE_ $TMPH config.mak $HAVE_LIST
3045 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST \
3046 $CONFIG_EXTRA \
3047 $DECODER_LIST \
3048 $ENCODER_LIST \
3049 $HWACCEL_LIST \
3050 $PARSER_LIST \
3051 $BSF_LIST \
3052 $DEMUXER_LIST \
3053 $MUXER_LIST \
3054 $FILTER_LIST \
3055 $PROTOCOL_LIST \
3056 $INDEV_LIST \
3057 $OUTDEV_LIST \
3058
3059 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3060 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3061
3062 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3063 cp_if_changed $TMPH config.h
3064
3065 cat > $TMPH <<EOF
3066 /* Generated by ffconf */
3067 #ifndef AVUTIL_AVCONFIG_H
3068 #define AVUTIL_AVCONFIG_H
3069 EOF
3070
3071 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3072
3073 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3074
3075 cp_if_changed $TMPH libavutil/avconfig.h
3076
3077 test -n "$WARNINGS" && printf "\n$WARNINGS"
3078
3079 # build pkg-config files
3080
3081 pkgconfig_generate(){
3082 name=$1
3083 shortname=${name#lib}${build_suffix}
3084 comment=$2
3085 version=$3
3086 libs=$4
3087 requires=$5
3088 cat <<EOF > $name/$name.pc
3089 prefix=$prefix
3090 exec_prefix=\${prefix}
3091 libdir=$libdir
3092 includedir=$incdir
3093
3094 Name: $name
3095 Description: $comment
3096 Version: $version
3097 Requires: $(enabled shared || echo $requires)
3098 Requires.private: $(enabled shared && echo $requires)
3099 Conflicts:
3100 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3101 Libs.private: $(enabled shared && echo $libs)
3102 Cflags: -I\${includedir}
3103 EOF
3104 cat <<EOF > $name/$name-uninstalled.pc
3105 prefix=
3106 exec_prefix=
3107 libdir=\${pcfiledir}
3108 includedir=${source_path}
3109
3110 Name: $name
3111 Description: $comment
3112 Version: $version
3113 Requires: $requires
3114 Conflicts:
3115 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3116 Cflags: -I\${includedir}
3117 EOF
3118 }
3119
3120 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3121 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3122 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3123 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3124 enabled avfilter &&
3125 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3126 enabled postproc &&
3127 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3128 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"