lavc: export DV profile API used by muxer/demuxer as public
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav 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 LIBAV, 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 Libav."
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 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91 --enable-gpl allow use of GPL code, the resulting libs
92 and binaries will be under GPL [no]
93 --enable-version3 upgrade (L)GPL to version 3 [no]
94 --enable-nonfree allow use of nonfree code, the resulting libs
95 and binaries will be unredistributable [no]
96
97 Configuration options:
98 --disable-static do not build static libraries [no]
99 --enable-shared build shared libraries [no]
100 --enable-small optimize for size instead of speed
101 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
102 --enable-gray enable full grayscale support (slower color)
103 --disable-swscale-alpha disable alpha channel support in swscale
104 --disable-all disable building components, libraries and programs
105
106 Program options:
107 --disable-programs do not build command line programs
108 --disable-avconv disable avconv build
109 --disable-avplay disable avplay build
110 --disable-avprobe disable avprobe build
111 --disable-avserver deprecated, does nothing
112
113 Component options:
114 --disable-doc do not build documentation
115 --disable-avdevice disable libavdevice build
116 --disable-avcodec disable libavcodec build
117 --disable-avformat disable libavformat build
118 --disable-avutil disable libavutil build
119 --disable-swscale disable libswscale build
120 --disable-avfilter disable video filter support [no]
121 --disable-avresample disable libavresample build [no]
122 --disable-pthreads disable pthreads [auto]
123 --disable-w32threads disable Win32 threads [auto]
124 --disable-network disable network support [no]
125 --disable-dct disable DCT code
126 --disable-error-resilience disable error resilience code
127 --disable-lsp disable LSP code
128 --disable-lzo disable LZO decoder code
129 --disable-mdct disable MDCT code
130 --disable-rdft disable RDFT code
131 --disable-fft disable FFT code
132
133 Hardware accelerators:
134 --enable-dxva2 enable DXVA2 code
135 --enable-vaapi enable VAAPI code
136 --enable-vda enable VDA code
137 --enable-vdpau enable VDPAU code
138
139 Individual component options:
140 --disable-everything disable all components listed below
141 --disable-encoder=NAME disable encoder NAME
142 --enable-encoder=NAME enable encoder NAME
143 --disable-encoders disable all encoders
144 --disable-decoder=NAME disable decoder NAME
145 --enable-decoder=NAME enable decoder NAME
146 --disable-decoders disable all decoders
147 --disable-hwaccel=NAME disable hwaccel NAME
148 --enable-hwaccel=NAME enable hwaccel NAME
149 --disable-hwaccels disable all hwaccels
150 --disable-muxer=NAME disable muxer NAME
151 --enable-muxer=NAME enable muxer NAME
152 --disable-muxers disable all muxers
153 --disable-demuxer=NAME disable demuxer NAME
154 --enable-demuxer=NAME enable demuxer NAME
155 --disable-demuxers disable all demuxers
156 --enable-parser=NAME enable parser NAME
157 --disable-parser=NAME disable parser NAME
158 --disable-parsers disable all parsers
159 --enable-bsf=NAME enable bitstream filter NAME
160 --disable-bsf=NAME disable bitstream filter NAME
161 --disable-bsfs disable all bitstream filters
162 --enable-protocol=NAME enable protocol NAME
163 --disable-protocol=NAME disable protocol NAME
164 --disable-protocols disable all protocols
165 --enable-indev=NAME enable input device NAME
166 --disable-indev=NAME disable input device NAME
167 --disable-indevs disable input devices
168 --enable-outdev=NAME enable output device NAME
169 --disable-outdev=NAME disable output device NAME
170 --disable-outdevs disable output devices
171 --disable-devices disable all devices
172 --enable-filter=NAME enable filter NAME
173 --disable-filter=NAME disable filter NAME
174 --disable-filters disable all filters
175
176 External library support:
177 --enable-avisynth enable reading of AviSynth script files [no]
178 --enable-bzlib enable bzlib [autodetect]
179 --enable-frei0r enable frei0r video filtering
180 --enable-gnutls enable gnutls [no]
181 --enable-libbs2b enable bs2b DSP library [no]
182 --enable-libcdio enable audio CD grabbing with libcdio
183 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
184 and libraw1394 [no]
185 --enable-libfaac enable AAC encoding via libfaac [no]
186 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
187 --enable-libfreetype enable libfreetype [no]
188 --enable-libgsm enable GSM de/encoding via libgsm [no]
189 --enable-libilbc enable iLBC de/encoding via libilbc [no]
190 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
191 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
192 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
193 --enable-libopencv enable video filtering via libopencv [no]
194 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
195 --enable-libopus enable Opus de/encoding via libopus [no]
196 --enable-libpulse enable Pulseaudio input via libpulse [no]
197 --enable-librtmp enable RTMP[E] support via librtmp [no]
198 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
199 --enable-libspeex enable Speex de/encoding via libspeex [no]
200 --enable-libtheora enable Theora encoding via libtheora [no]
201 --enable-libtwolame enable MP2 encoding via libtwolame [no]
202 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
203 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
204 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
205 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
206 --enable-libwavpack enable wavpack encoding via libwavpack [no]
207 --enable-libwebp enable WebP encoding via libwebp [no]
208 --enable-libx264 enable H.264 encoding via x264 [no]
209 --enable-libx265 enable HEVC encoding via x265 [no]
210 --enable-libxavs enable AVS encoding via xavs [no]
211 --enable-libxvid enable Xvid encoding via xvidcore,
212 native MPEG-4/Xvid encoder exists [no]
213 --enable-openssl enable openssl [no]
214 --enable-x11grab enable X11 grabbing [no]
215 --enable-zlib enable zlib [autodetect]
216
217 Toolchain options:
218 --arch=ARCH select architecture [$arch]
219 --cpu=CPU select the minimum required CPU (affects
220 instruction selection, may crash on older CPUs)
221 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
222 --enable-cross-compile assume a cross-compiler is used
223 --sysroot=PATH root of cross-build tree
224 --sysinclude=PATH location of cross-build system headers
225 --target-os=OS compiler targets OS [$target_os]
226 --target-exec=CMD command to run executables on target
227 --target-path=DIR path to view of build directory on target
228 --target-samples=DIR path to samples directory on target
229 --toolchain=NAME set tool defaults according to NAME
230 --nm=NM use nm tool
231 --ar=AR use archive tool AR [$ar_default]
232 --as=AS use assembler AS [$as_default]
233 --cc=CC use C compiler CC [$cc_default]
234 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
235 --ld=LD use linker LD
236 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
237 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
238 --host-cc=HOSTCC use host C compiler HOSTCC
239 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
240 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
241 --host-ld=HOSTLD use host linker HOSTLD
242 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
243 --host-libs=HLIBS use libs HLIBS when linking for host
244 --host-os=OS compiler host OS [$target_os]
245 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
246 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
247 --extra-libs=ELIBS add ELIBS [$ELIBS]
248 --extra-version=STRING version string suffix []
249 --optflags=OPTFLAGS override optimization-related compiler flags
250 --build-suffix=SUFFIX library name suffix []
251 --enable-pic build position-independent code
252 --enable-thumb compile for Thumb instruction set
253 --enable-lto use link-time optimization
254
255 Advanced options (experts only):
256 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
257 --disable-symver disable symbol versioning
258 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
259 --disable-safe-bitstream-reader
260 disable buffer boundary checking in bitreaders
261 (faster, but may crash)
262 --enable-memalign-hack emulate memalign, interferes with memory debuggers
263 --enable-sram allow use of on-chip SRAM
264
265 Optimization options (experts only):
266 --disable-asm disable all assembly optimizations
267 --disable-altivec disable AltiVec optimizations
268 --disable-amd3dnow disable 3DNow! optimizations
269 --disable-amd3dnowext disable 3DNow! extended optimizations
270 --disable-mmx disable MMX optimizations
271 --disable-mmxext disable MMXEXT optimizations
272 --disable-sse disable SSE optimizations
273 --disable-sse2 disable SSE2 optimizations
274 --disable-sse3 disable SSE3 optimizations
275 --disable-ssse3 disable SSSE3 optimizations
276 --disable-sse4 disable SSE4 optimizations
277 --disable-sse42 disable SSE4.2 optimizations
278 --disable-avx disable AVX optimizations
279 --disable-xop disable XOP optimizations
280 --disable-fma3 disable FMA3 optimizations
281 --disable-fma4 disable FMA4 optimizations
282 --disable-avx2 disable AVX2 optimizations
283 --disable-armv5te disable armv5te optimizations
284 --disable-armv6 disable armv6 optimizations
285 --disable-armv6t2 disable armv6t2 optimizations
286 --disable-vfp disable VFP optimizations
287 --disable-neon disable NEON optimizations
288 --disable-inline-asm disable use of inline assembly
289 --disable-yasm disable use of nasm/yasm assembly
290
291 Developer options (useful when working on Libav itself):
292 --disable-debug disable debugging symbols
293 --enable-debug=LEVEL set the debug level [$debuglevel]
294 --disable-optimizations disable compiler optimizations
295 --enable-extra-warnings enable more compiler warnings
296 --samples=PATH location of test samples for FATE, if not set use
297 \$LIBAV_SAMPLES at make invocation time.
298 --enable-neon-clobber-test check NEON registers for clobbering (should be
299 used only for debugging purposes)
300 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
301 should be used only for debugging purposes)
302 --enable-random randomly enable/disable components
303 --disable-random
304 --enable-random=LIST randomly enable/disable specific components or
305 --disable-random=LIST component groups. LIST is a comma-separated list
306 of NAME[:PROB] entries where NAME is a component
307 (group) and PROB the probability associated with
308 NAME (default 0.5).
309 --random-seed=VALUE seed value for --enable/disable-random
310
311 NOTE: Object files are built at the place where configure is launched.
312 EOF
313 exit 0
314 }
315
316 quotes='""'
317
318 log(){
319 echo "$@" >> $logfile
320 }
321
322 log_file(){
323 log BEGIN $1
324 pr -n -t $1 >> $logfile
325 log END $1
326 }
327
328 echolog(){
329 log "$@"
330 echo "$@"
331 }
332
333 warn(){
334 log "WARNING: $*"
335 WARNINGS="${WARNINGS}WARNING: $*\n"
336 }
337
338 die(){
339 echolog "$@"
340 cat <<EOF
341
342 If you think configure made a mistake, make sure you are using the latest
343 version from Git. If the latest version fails, report the problem to the
344 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
345 EOF
346 if disabled logging; then
347 cat <<EOF
348 Rerun configure with logging enabled (do not use --disable-logging), and
349 include the log this produces with your report.
350 EOF
351 else
352 cat <<EOF
353 Include the log file "$logfile" produced by configure as this will help
354 solving the problem.
355 EOF
356 fi
357 exit 1
358 }
359
360 # Avoid locale weirdness, besides we really just want to translate ASCII.
361 toupper(){
362 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
363 }
364
365 tolower(){
366 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
367 }
368
369 c_escape(){
370 echo "$*" | sed 's/["\\]/\\\0/g'
371 }
372
373 sh_quote(){
374 v=$(echo "$1" | sed "s/'/'\\\\''/g")
375 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
376 echo "$v"
377 }
378
379 cleanws(){
380 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
381 }
382
383 filter(){
384 pat=$1
385 shift
386 for v; do
387 eval "case $v in $pat) echo $v ;; esac"
388 done
389 }
390
391 filter_out(){
392 pat=$1
393 shift
394 for v; do
395 eval "case $v in $pat) ;; *) echo $v ;; esac"
396 done
397 }
398
399 map(){
400 m=$1
401 shift
402 for v; do eval $m; done
403 }
404
405 add_suffix(){
406 suffix=$1
407 shift
408 for v; do echo ${v}${suffix}; done
409 }
410
411 set_all(){
412 value=$1
413 shift
414 for var in $*; do
415 eval $var=$value
416 done
417 }
418
419 set_weak(){
420 value=$1
421 shift
422 for var; do
423 eval : \${$var:=$value}
424 done
425 }
426
427 sanitize_var_name(){
428 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
429 }
430
431 set_safe(){
432 var=$1
433 shift
434 eval $(sanitize_var_name "$var")='$*'
435 }
436
437 get_safe(){
438 eval echo \$$(sanitize_var_name "$1")
439 }
440
441 pushvar(){
442 for pvar in $*; do
443 eval level=\${${pvar}_level:=0}
444 eval ${pvar}_${level}="\$$pvar"
445 eval ${pvar}_level=$(($level+1))
446 done
447 }
448
449 popvar(){
450 for pvar in $*; do
451 eval level=\${${pvar}_level:-0}
452 test $level = 0 && continue
453 eval level=$(($level-1))
454 eval $pvar="\${${pvar}_${level}}"
455 eval ${pvar}_level=$level
456 eval unset ${pvar}_${level}
457 done
458 }
459
460 enable(){
461 set_all yes $*
462 }
463
464 disable(){
465 set_all no $*
466 }
467
468 enable_weak(){
469 set_weak yes $*
470 }
471
472 disable_weak(){
473 set_weak no $*
474 }
475
476 enable_safe(){
477 for var; do
478 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
479 done
480 }
481
482 disable_safe(){
483 for var; do
484 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
485 done
486 }
487
488 do_enable_deep(){
489 for var; do
490 enabled $var && continue
491 eval sel="\$${var}_select"
492 eval sgs="\$${var}_suggest"
493 pushvar var sgs
494 enable_deep $sel
495 popvar sgs
496 enable_deep_weak $sgs
497 popvar var
498 done
499 }
500
501 enable_deep(){
502 do_enable_deep $*
503 enable $*
504 }
505
506 enable_deep_weak(){
507 for var; do
508 disabled $var && continue
509 pushvar var
510 do_enable_deep $var
511 popvar var
512 enable_weak $var
513 done
514 }
515
516 enabled(){
517 test "${1#!}" = "$1" && op== || op=!=
518 eval test "x\$${1#!}" $op "xyes"
519 }
520
521 disabled(){
522 test "${1#!}" = "$1" && op== || op=!=
523 eval test "x\$${1#!}" $op "xno"
524 }
525
526 enabled_all(){
527 for opt; do
528 enabled $opt || return 1
529 done
530 }
531
532 disabled_all(){
533 for opt; do
534 disabled $opt || return 1
535 done
536 }
537
538 enabled_any(){
539 for opt; do
540 enabled $opt && return 0
541 done
542 }
543
544 disabled_any(){
545 for opt; do
546 disabled $opt && return 0
547 done
548 return 1
549 }
550
551 set_default(){
552 for opt; do
553 eval : \${$opt:=\$${opt}_default}
554 done
555 }
556
557 is_in(){
558 value=$1
559 shift
560 for var in $*; do
561 [ $var = $value ] && return 0
562 done
563 return 1
564 }
565
566 do_check_deps(){
567 for cfg; do
568 cfg="${cfg#!}"
569 enabled ${cfg}_checking && die "Circular dependency for $cfg."
570 disabled ${cfg}_checking && continue
571 enable ${cfg}_checking
572 append allopts $cfg
573
574 eval dep_all="\$${cfg}_deps"
575 eval dep_any="\$${cfg}_deps_any"
576 eval dep_sel="\$${cfg}_select"
577 eval dep_sgs="\$${cfg}_suggest"
578 eval dep_ifa="\$${cfg}_if"
579 eval dep_ifn="\$${cfg}_if_any"
580
581 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
582 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
583 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
584
585 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
586 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
587 enabled_all $dep_all || disable $cfg
588 enabled_any $dep_any || disable $cfg
589 disabled_any $dep_sel && disable $cfg
590
591 if enabled $cfg; then
592 enable_deep $dep_sel
593 enable_deep_weak $dep_sgs
594 fi
595
596 disable ${cfg}_checking
597 done
598 }
599
600 check_deps(){
601 unset allopts
602
603 do_check_deps "$@"
604
605 for cfg in $allopts; do
606 enabled $cfg || continue
607 eval dep_extralibs="\$${cfg}_extralibs"
608 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
609 done
610 }
611
612 print_config(){
613 pfx=$1
614 files=$2
615 shift 2
616 map 'eval echo "$v \${$v:-no}"' "$@" |
617 awk "BEGIN { split(\"$files\", files) }
618 {
619 c = \"$pfx\" toupper(\$1);
620 v = \$2;
621 sub(/yes/, 1, v);
622 sub(/no/, 0, v);
623 for (f in files) {
624 file = files[f];
625 if (file ~ /\\.h\$/) {
626 printf(\"#define %s %d\\n\", c, v) >>file;
627 } else if (file ~ /\\.asm\$/) {
628 printf(\"%%define %s %d\\n\", c, v) >>file;
629 } else if (file ~ /\\.mak\$/) {
630 n = -v ? \"\" : \"!\";
631 printf(\"%s%s=yes\\n\", n, c) >>file;
632 }
633 }
634 }"
635 }
636
637 print_enabled(){
638 suf=$1
639 shift
640 for v; do
641 enabled $v && printf "%s\n" ${v%$suf};
642 done
643 }
644
645 append(){
646 var=$1
647 shift
648 eval "$var=\"\$$var $*\""
649 }
650
651 prepend(){
652 var=$1
653 shift
654 eval "$var=\"$* \$$var\""
655 }
656
657 unique(){
658 var=$1
659 uniq_list=""
660 for tok in $(eval echo \$$var); do
661 uniq_list="$(filter_out $tok $uniq_list) $tok"
662 done
663 eval "$var=\"${uniq_list}\""
664 }
665
666 add_cppflags(){
667 append CPPFLAGS "$@"
668 }
669
670 add_cflags(){
671 append CFLAGS $($cflags_filter "$@")
672 }
673
674 add_asflags(){
675 append ASFLAGS $($asflags_filter "$@")
676 }
677
678 add_ldflags(){
679 append LDFLAGS $($ldflags_filter "$@")
680 }
681
682 add_stripflags(){
683 append STRIPFLAGS "$@"
684 }
685
686 add_extralibs(){
687 prepend extralibs $($ldflags_filter "$@")
688 }
689
690 add_host_cppflags(){
691 append host_cppflags "$@"
692 }
693
694 add_host_cflags(){
695 append host_cflags $($host_cflags_filter "$@")
696 }
697
698 add_host_ldflags(){
699 append host_ldflags $($host_ldflags_filter "$@")
700 }
701
702 add_compat(){
703 append compat_objs $1
704 shift
705 map 'add_cppflags -D$v' "$@"
706 }
707
708 check_cmd(){
709 log "$@"
710 "$@" >> $logfile 2>&1
711 }
712
713 cc_o(){
714 eval printf '%s\\n' $CC_O
715 }
716
717 cc_e(){
718 eval printf '%s\\n' $CC_E
719 }
720
721 check_cc(){
722 log check_cc "$@"
723 cat > $TMPC
724 log_file $TMPC
725 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
726 }
727
728 check_cpp(){
729 log check_cpp "$@"
730 cat > $TMPC
731 log_file $TMPC
732 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
733 }
734
735 as_o(){
736 eval printf '%s\\n' $AS_O
737 }
738
739 check_as(){
740 log check_as "$@"
741 cat > $TMPS
742 log_file $TMPS
743 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
744 }
745
746 check_inline_asm(){
747 log check_inline_asm "$@"
748 name="$1"
749 code="$2"
750 shift 2
751 disable $name
752 check_cc "$@" <<EOF && enable $name
753 void foo(void){ __asm__ volatile($code); }
754 EOF
755 }
756
757 check_insn(){
758 log check_insn "$@"
759 check_inline_asm ${1}_inline "\"$2\""
760 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
761 }
762
763 check_yasm(){
764 log check_yasm "$@"
765 echo "$1" > $TMPS
766 log_file $TMPS
767 shift 1
768 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
769 }
770
771 ld_o(){
772 eval printf '%s\\n' $LD_O
773 }
774
775 check_ld(){
776 log check_ld "$@"
777 flags=$(filter_out '-l*' "$@")
778 libs=$(filter '-l*' "$@")
779 check_cc $($cflags_filter $flags) || return
780 flags=$($ldflags_filter $flags)
781 libs=$($ldflags_filter $libs)
782 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
783 }
784
785 print_include(){
786 hdr=$1
787 test "${hdr%.h}" = "${hdr}" &&
788 echo "#include $hdr" ||
789 echo "#include <$hdr>"
790 }
791
792 check_code(){
793 log check_code "$@"
794 check=$1
795 headers=$2
796 code=$3
797 shift 3
798 {
799 for hdr in $headers; do
800 print_include $hdr
801 done
802 echo "int main(void) { $code; return 0; }"
803 } | check_$check "$@"
804 }
805
806 check_cppflags(){
807 log check_cppflags "$@"
808 check_cc "$@" <<EOF && append CPPFLAGS "$@"
809 int x;
810 EOF
811 }
812
813 test_cflags(){
814 log test_cflags "$@"
815 set -- $($cflags_filter "$@")
816 check_cc "$@" <<EOF
817 int x;
818 EOF
819 }
820
821 check_cflags(){
822 log check_cflags "$@"
823 test_cflags "$@" && add_cflags "$@"
824 }
825
826 test_ldflags(){
827 log test_ldflags "$@"
828 check_ld "$@" <<EOF
829 int main(void){ return 0; }
830 EOF
831 }
832
833 check_ldflags(){
834 log check_ldflags "$@"
835 test_ldflags "$@" && add_ldflags "$@"
836 }
837
838 test_stripflags(){
839 log test_stripflags "$@"
840 # call check_cc to get a fresh TMPO
841 check_cc <<EOF
842 int main(void) { return 0; }
843 EOF
844 check_cmd $strip $STRIPFLAGS "$@" $TMPO
845 }
846
847 check_stripflags(){
848 log check_stripflags "$@"
849 test_stripflags "$@" && add_stripflags "$@"
850 }
851
852 check_header(){
853 log check_header "$@"
854 header=$1
855 shift
856 disable_safe $header
857 check_cpp "$@" <<EOF && enable_safe $header
858 #include <$header>
859 int x;
860 EOF
861 }
862
863 check_func(){
864 log check_func "$@"
865 func=$1
866 shift
867 disable $func
868 check_ld "$@" <<EOF && enable $func
869 extern int $func();
870 int main(void){ $func(); }
871 EOF
872 }
873
874 check_mathfunc(){
875 log check_mathfunc "$@"
876 func=$1
877 narg=$2
878 shift 2
879 test $narg = 2 && args="f, g" || args="f"
880 disable $func
881 check_ld "$@" <<EOF && enable $func
882 #include <math.h>
883 float foo(float f, float g) { return $func($args); }
884 int main(void){ return 0; }
885 EOF
886 }
887
888 check_func_headers(){
889 log check_func_headers "$@"
890 headers=$1
891 funcs=$2
892 shift 2
893 {
894 for hdr in $headers; do
895 print_include $hdr
896 done
897 for func in $funcs; do
898 echo "long check_$func(void) { return (long) $func; }"
899 done
900 echo "int main(void) { return 0; }"
901 } | check_ld "$@" && enable $funcs && enable_safe $headers
902 }
903
904 check_cpp_condition(){
905 log check_cpp_condition "$@"
906 header=$1
907 condition=$2
908 shift 2
909 check_cpp "$@" <<EOF
910 #include <$header>
911 #if !($condition)
912 #error "unsatisfied condition: $condition"
913 #endif
914 EOF
915 }
916
917 check_lib(){
918 log check_lib "$@"
919 header="$1"
920 func="$2"
921 shift 2
922 check_header $header && check_func $func "$@" && add_extralibs "$@"
923 }
924
925 check_lib2(){
926 log check_lib2 "$@"
927 headers="$1"
928 funcs="$2"
929 shift 2
930 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
931 }
932
933 check_pkg_config(){
934 log check_pkg_config "$@"
935 pkg="$1"
936 headers="$2"
937 funcs="$3"
938 shift 3
939 check_cmd $pkg_config --exists --print-errors $pkg || return
940 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
941 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
942 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
943 set_safe ${pkg}_cflags $pkg_cflags &&
944 set_safe ${pkg}_libs $pkg_libs
945 }
946
947 check_exec(){
948 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
949 }
950
951 check_exec_crash(){
952 code=$(cat)
953
954 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
955 # are safe but may not be available everywhere. Thus we use
956 # raise(SIGTERM) instead. The check is run in a subshell so we
957 # can redirect the "Terminated" message from the shell. SIGBUS
958 # is not defined by standard C so it is used conditionally.
959
960 (check_exec "$@") >> $logfile 2>&1 <<EOF
961 #include <signal.h>
962 static void sighandler(int sig){
963 raise(SIGTERM);
964 }
965 int foo(void){
966 $code
967 }
968 int (*func_ptr)(void) = foo;
969 int main(void){
970 signal(SIGILL, sighandler);
971 signal(SIGFPE, sighandler);
972 signal(SIGSEGV, sighandler);
973 #ifdef SIGBUS
974 signal(SIGBUS, sighandler);
975 #endif
976 return func_ptr();
977 }
978 EOF
979 }
980
981 check_type(){
982 log check_type "$@"
983 headers=$1
984 type=$2
985 shift 2
986 disable_safe "$type"
987 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
988 }
989
990 check_struct(){
991 log check_struct "$@"
992 headers=$1
993 struct=$2
994 member=$3
995 shift 3
996 disable_safe "${struct}_${member}"
997 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
998 enable_safe "${struct}_${member}"
999 }
1000
1001 check_builtin(){
1002 log check_builtin "$@"
1003 name=$1
1004 headers=$2
1005 builtin=$3
1006 shift 3
1007 disable "$name"
1008 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1009 }
1010
1011 check_compile_assert(){
1012 log check_compile_assert "$@"
1013 name=$1
1014 headers=$2
1015 condition=$3
1016 shift 3
1017 disable "$name"
1018 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1019 }
1020
1021 require(){
1022 name="$1"
1023 header="$2"
1024 func="$3"
1025 shift 3
1026 check_lib $header $func "$@" || die "ERROR: $name not found"
1027 }
1028
1029 require2(){
1030 name="$1"
1031 headers="$2"
1032 func="$3"
1033 shift 3
1034 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1035 }
1036
1037 require_pkg_config(){
1038 pkg="$1"
1039 check_pkg_config "$@" || die "ERROR: $pkg not found"
1040 add_cflags $(get_safe ${pkg}_cflags)
1041 add_extralibs $(get_safe ${pkg}_libs)
1042 }
1043
1044 hostcc_e(){
1045 eval printf '%s\\n' $HOSTCC_E
1046 }
1047
1048 hostcc_o(){
1049 eval printf '%s\\n' $HOSTCC_O
1050 }
1051
1052 check_host_cc(){
1053 log check_host_cc "$@"
1054 cat > $TMPC
1055 log_file $TMPC
1056 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1057 }
1058
1059 check_host_cpp(){
1060 log check_host_cpp "$@"
1061 cat > $TMPC
1062 log_file $TMPC
1063 check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1064 }
1065
1066 check_host_cppflags(){
1067 log check_host_cppflags "$@"
1068 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1069 int x;
1070 EOF
1071 }
1072
1073 check_host_cflags(){
1074 log check_host_cflags "$@"
1075 set -- $($host_cflags_filter "$@")
1076 check_host_cc "$@" <<EOF && append host_cflags "$@"
1077 int x;
1078 EOF
1079 }
1080
1081 check_host_cpp_condition(){
1082 log check_host_cpp_condition "$@"
1083 header=$1
1084 condition=$2
1085 shift 2
1086 check_host_cpp "$@" <<EOF
1087 #include <$header>
1088 #if !($condition)
1089 #error "unsatisfied condition: $condition"
1090 #endif
1091 EOF
1092 }
1093
1094 apply(){
1095 file=$1
1096 shift
1097 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1098 }
1099
1100 cp_if_changed(){
1101 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1102 mkdir -p "$(dirname $2)"
1103 $cp_f "$1" "$2"
1104 }
1105
1106 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1107 # system-dependent things.
1108
1109 COMPONENT_LIST="
1110 bsfs
1111 decoders
1112 demuxers
1113 encoders
1114 filters
1115 hwaccels
1116 indevs
1117 muxers
1118 outdevs
1119 parsers
1120 protocols
1121 "
1122
1123 EXAMPLE_LIST="
1124 avcodec_example
1125 filter_audio_example
1126 metadata_example
1127 output_example
1128 transcode_aac_example
1129 "
1130
1131 EXTERNAL_LIBRARY_LIST="
1132 avisynth
1133 bzlib
1134 frei0r
1135 gnutls
1136 libbs2b
1137 libcdio
1138 libdc1394
1139 libfaac
1140 libfdk_aac
1141 libfontconfig
1142 libfreetype
1143 libgsm
1144 libilbc
1145 libmp3lame
1146 libopencore_amrnb
1147 libopencore_amrwb
1148 libopencv
1149 libopenjpeg
1150 libopus
1151 libpulse
1152 librtmp
1153 libschroedinger
1154 libspeex
1155 libtheora
1156 libtwolame
1157 libvo_aacenc
1158 libvo_amrwbenc
1159 libvorbis
1160 libvpx
1161 libwavpack
1162 libwebp
1163 libx264
1164 libx265
1165 libxavs
1166 libxvid
1167 openssl
1168 x11grab
1169 zlib
1170 "
1171
1172 FEATURE_LIST="
1173 gray
1174 hardcoded_tables
1175 runtime_cpudetect
1176 safe_bitstream_reader
1177 shared
1178 small
1179 sram
1180 static
1181 swscale_alpha
1182 "
1183
1184 HWACCEL_LIST="
1185 dxva2
1186 vaapi
1187 vda
1188 vdpau
1189 "
1190
1191 LIBRARY_LIST="
1192 avcodec
1193 avdevice
1194 avfilter
1195 avformat
1196 avresample
1197 avutil
1198 swscale
1199 "
1200
1201 LICENSE_LIST="
1202 gpl
1203 nonfree
1204 version3
1205 "
1206
1207 PROGRAM_LIST="
1208 avconv
1209 avplay
1210 avprobe
1211 "
1212
1213 SUBSYSTEM_LIST="
1214 dct
1215 doc
1216 error_resilience
1217 fft
1218 lsp
1219 lzo
1220 mdct
1221 network
1222 rdft
1223 "
1224
1225 CONFIG_LIST="
1226 $COMPONENT_LIST
1227 $EXAMPLE_LIST
1228 $EXTERNAL_LIBRARY_LIST
1229 $FEATURE_LIST
1230 $HWACCEL_LIST
1231 $LICENSE_LIST
1232 $LIBRARY_LIST
1233 $PROGRAM_LIST
1234 $SUBSYSTEM_LIST
1235 memalign_hack
1236 neon_clobber_test
1237 pic
1238 pod2man
1239 texi2html
1240 thumb
1241 xmm_clobber_test
1242 "
1243
1244 THREADS_LIST="
1245 pthreads
1246 w32threads
1247 "
1248
1249 ATOMICS_LIST="
1250 atomics_gcc
1251 atomics_suncc
1252 atomics_win32
1253 "
1254
1255 ARCH_LIST="
1256 aarch64
1257 alpha
1258 arm
1259 avr32
1260 avr32_ap
1261 avr32_uc
1262 bfin
1263 ia64
1264 m68k
1265 mips
1266 mips64
1267 parisc
1268 ppc
1269 ppc64
1270 s390
1271 sh4
1272 sparc
1273 sparc64
1274 tilegx
1275 tilepro
1276 tomi
1277 x86
1278 x86_32
1279 x86_64
1280 "
1281
1282 ARCH_EXT_LIST_ARM="
1283 armv5te
1284 armv6
1285 armv6t2
1286 armv8
1287 neon
1288 vfp
1289 vfpv3
1290 "
1291
1292 ARCH_EXT_LIST_X86_SIMD="
1293 amd3dnow
1294 amd3dnowext
1295 avx
1296 avx2
1297 fma3
1298 fma4
1299 mmx
1300 mmxext
1301 sse
1302 sse2
1303 sse3
1304 sse4
1305 sse42
1306 ssse3
1307 xop
1308 "
1309
1310 ARCH_EXT_LIST_PPC="
1311 altivec
1312 dcbzl
1313 ldbrx
1314 ppc4xx
1315 "
1316
1317 ARCH_EXT_LIST_X86="
1318 $ARCH_EXT_LIST_X86_SIMD
1319 cpunop
1320 i686
1321 "
1322
1323 ARCH_EXT_LIST="
1324 $ARCH_EXT_LIST_ARM
1325 $ARCH_EXT_LIST_PPC
1326 $ARCH_EXT_LIST_X86
1327 loongson
1328 vis
1329 "
1330
1331 ARCH_FEATURES="
1332 aligned_stack
1333 fast_64bit
1334 fast_clz
1335 fast_cmov
1336 local_aligned_8
1337 local_aligned_16
1338 "
1339
1340 BUILTIN_LIST="
1341 atomic_cas_ptr
1342 machine_rw_barrier
1343 MemoryBarrier
1344 mm_empty
1345 rdtsc
1346 sync_val_compare_and_swap
1347 "
1348 HAVE_LIST_CMDLINE="
1349 inline_asm
1350 symver
1351 yasm
1352 "
1353
1354 HAVE_LIST_PUB="
1355 bigendian
1356 fast_unaligned
1357 "
1358
1359 HEADERS_LIST="
1360 alsa_asoundlib_h
1361 altivec_h
1362 arpa_inet_h
1363 cdio_paranoia_h
1364 cdio_paranoia_paranoia_h
1365 dev_bktr_ioctl_bt848_h
1366 dev_bktr_ioctl_meteor_h
1367 dev_ic_bt8xx_h
1368 dev_video_bktr_ioctl_bt848_h
1369 dev_video_meteor_ioctl_meteor_h
1370 direct_h
1371 dlfcn_h
1372 dxva_h
1373 gsm_h
1374 io_h
1375 mach_mach_time_h
1376 machine_ioctl_bt848_h
1377 machine_ioctl_meteor_h
1378 malloc_h
1379 poll_h
1380 sndio_h
1381 soundcard_h
1382 sys_mman_h
1383 sys_param_h
1384 sys_resource_h
1385 sys_select_h
1386 sys_soundcard_h
1387 sys_time_h
1388 sys_un_h
1389 sys_videoio_h
1390 unistd_h
1391 windows_h
1392 winsock2_h
1393 "
1394
1395 MATH_FUNCS="
1396 atanf
1397 atan2f
1398 cbrtf
1399 cosf
1400 exp2
1401 exp2f
1402 expf
1403 isinf
1404 isnan
1405 ldexpf
1406 llrint
1407 llrintf
1408 log2
1409 log2f
1410 log10f
1411 lrint
1412 lrintf
1413 powf
1414 rint
1415 round
1416 roundf
1417 sinf
1418 trunc
1419 truncf
1420 "
1421
1422 SYSTEM_FUNCS="
1423 aligned_malloc
1424 closesocket
1425 CommandLineToArgvW
1426 CoTaskMemFree
1427 CryptGenRandom
1428 dlopen
1429 fcntl
1430 flt_lim
1431 fork
1432 getaddrinfo
1433 gethrtime
1434 getopt
1435 GetProcessAffinityMask
1436 GetProcessMemoryInfo
1437 GetProcessTimes
1438 getrusage
1439 getservbyport
1440 GetSystemTimeAsFileTime
1441 gettimeofday
1442 inet_aton
1443 isatty
1444 jack_port_get_latency_range
1445 localtime_r
1446 mach_absolute_time
1447 MapViewOfFile
1448 memalign
1449 mkstemp
1450 mmap
1451 mprotect
1452 nanosleep
1453 posix_memalign
1454 sched_getaffinity
1455 SetConsoleTextAttribute
1456 setmode
1457 setrlimit
1458 Sleep
1459 strerror_r
1460 strptime
1461 sysconf
1462 sysctl
1463 usleep
1464 VirtualAlloc
1465 "
1466
1467 TOOLCHAIN_FEATURES="
1468 as_dn_directive
1469 as_func
1470 asm_mod_q
1471 attribute_may_alias
1472 attribute_packed
1473 ebp_available
1474 ebx_available
1475 gnu_as
1476 ibm_asm
1477 inline_asm_labels
1478 pragma_deprecated
1479 symver_asm_label
1480 symver_gnu_asm
1481 vfp_args
1482 xform_asm
1483 xmm_clobbers
1484 "
1485
1486 TYPES_LIST="
1487 socklen_t
1488 struct_addrinfo
1489 struct_group_source_req
1490 struct_ip_mreq_source
1491 struct_ipv6_mreq
1492 struct_pollfd
1493 struct_rusage_ru_maxrss
1494 struct_sockaddr_in6
1495 struct_sockaddr_sa_len
1496 struct_sockaddr_storage
1497 struct_v4l2_frmivalenum_discrete
1498 "
1499
1500 HAVE_LIST="
1501 $ARCH_EXT_LIST
1502 $(add_suffix _external $ARCH_EXT_LIST)
1503 $(add_suffix _inline $ARCH_EXT_LIST)
1504 $ARCH_FEATURES
1505 $ATOMICS_LIST
1506 $BUILTIN_LIST
1507 $HAVE_LIST_CMDLINE
1508 $HAVE_LIST_PUB
1509 $HEADERS_LIST
1510 $MATH_FUNCS
1511 $SYSTEM_FUNCS
1512 $THREADS_LIST
1513 $TOOLCHAIN_FEATURES
1514 $TYPES_LIST
1515 atomics_native
1516 dos_paths
1517 dxva2_lib
1518 libc_msvcrt
1519 libdc1394_1
1520 libdc1394_2
1521 sdl
1522 threads
1523 vdpau_x11
1524 xlib
1525 "
1526
1527 # options emitted with CONFIG_ prefix but not available on the command line
1528 CONFIG_EXTRA="
1529 aandcttables
1530 ac3dsp
1531 audio_frame_queue
1532 audiodsp
1533 blockdsp
1534 bswapdsp
1535 cabac
1536 dsputil
1537 dvprofile
1538 fdctdsp
1539 gcrypt
1540 golomb
1541 gplv3
1542 h263dsp
1543 h264chroma
1544 h264dsp
1545 h264pred
1546 h264qpel
1547 hpeldsp
1548 huffman
1549 huffyuvdsp
1550 huffyuvencdsp
1551 idctdsp
1552 intrax8
1553 lgplv3
1554 lpc
1555 mpeg_er
1556 mpegaudio
1557 mpegaudiodsp
1558 mpegvideo
1559 mpegvideoenc
1560 nettle
1561 qpeldsp
1562 rangecoder
1563 riffdec
1564 riffenc
1565 rtpdec
1566 rtpenc_chain
1567 sinewin
1568 tpeldsp
1569 videodsp
1570 vp3dsp
1571 "
1572
1573 CMDLINE_SELECT="
1574 $ARCH_EXT_LIST
1575 $CONFIG_LIST
1576 $HAVE_LIST_CMDLINE
1577 $THREADS_LIST
1578 asm
1579 cross_compile
1580 debug
1581 extra_warnings
1582 logging
1583 lto
1584 optimizations
1585 "
1586
1587 PATHS_LIST="
1588 bindir
1589 datadir
1590 docdir
1591 incdir
1592 libdir
1593 mandir
1594 prefix
1595 shlibdir
1596 "
1597
1598 CMDLINE_SET="
1599 $PATHS_LIST
1600 ar
1601 arch
1602 as
1603 build_suffix
1604 cc
1605 cpu
1606 cross_prefix
1607 dep_cc
1608 extra_version
1609 host_cc
1610 host_cflags
1611 host_ld
1612 host_ldflags
1613 host_libs
1614 host_os
1615 ld
1616 logfile
1617 malloc_prefix
1618 nm
1619 optflags
1620 pkg_config
1621 pkg_config_flags
1622 random_seed
1623 samples
1624 sysinclude
1625 sysroot
1626 target_exec
1627 target_os
1628 target_path
1629 target_samples
1630 toolchain
1631 "
1632
1633 CMDLINE_APPEND="
1634 extra_cflags
1635 host_cppflags
1636 "
1637
1638 # code dependency declarations
1639
1640 # architecture extensions
1641
1642 armv5te_deps="arm"
1643 armv6_deps="arm"
1644 armv6t2_deps="arm"
1645 armv8_deps="aarch64"
1646 neon_deps_any="aarch64 arm"
1647 vfp_deps_any="aarch64 arm"
1648 vfpv3_deps="vfp"
1649
1650 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1651
1652 altivec_deps="ppc"
1653 ppc4xx_deps="ppc"
1654
1655 cpunop_deps="i686"
1656 x86_64_select="i686"
1657 x86_64_suggest="fast_cmov"
1658
1659 amd3dnow_deps="mmx"
1660 amd3dnowext_deps="amd3dnow"
1661 i686_deps="x86"
1662 mmx_deps="x86"
1663 mmxext_deps="mmx"
1664 sse_deps="mmxext"
1665 sse2_deps="sse"
1666 sse3_deps="sse2"
1667 ssse3_deps="sse3"
1668 sse4_deps="ssse3"
1669 sse42_deps="sse4"
1670 avx_deps="sse42"
1671 xop_deps="avx"
1672 fma3_deps="avx"
1673 fma4_deps="avx"
1674 avx2_deps="avx"
1675
1676 mmx_external_deps="yasm"
1677 mmx_inline_deps="inline_asm"
1678 mmx_suggest="mmx_external mmx_inline"
1679
1680 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1681 eval dep=\$${ext}_deps
1682 eval ${ext}_external_deps='"${dep}_external"'
1683 eval ${ext}_inline_deps='"${dep}_inline"'
1684 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1685 done
1686
1687 aligned_stack_if_any="aarch64 ppc x86"
1688 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1689 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1690 fast_unaligned_if_any="aarch64 ppc x86"
1691
1692 need_memalign="altivec neon sse"
1693
1694 # system capabilities
1695 log2_deps="!libc_msvcrt"
1696
1697 symver_if_any="symver_asm_label symver_gnu_asm"
1698
1699 # threading support
1700 atomics_gcc_if="sync_val_compare_and_swap"
1701 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1702 atomics_win32_if="MemoryBarrier"
1703 atomics_native_if_any="$ATOMICS_LIST"
1704 w32threads_deps="atomics_native"
1705 threads_if_any="$THREADS_LIST"
1706
1707 # subsystems
1708 dct_select="rdft"
1709 dsputil_select="fdctdsp idctdsp"
1710 error_resilience_select="dsputil"
1711 intrax8_select="error_resilience"
1712 mdct_select="fft"
1713 rdft_select="fft"
1714 mpeg_er_select="error_resilience"
1715 mpegaudio_select="mpegaudiodsp"
1716 mpegaudiodsp_select="dct"
1717 mpegvideo_select="blockdsp dsputil hpeldsp idctdsp videodsp"
1718 mpegvideoenc_select="dsputil mpegvideo qpeldsp"
1719
1720 # decoders / encoders
1721 aac_decoder_select="mdct sinewin"
1722 aac_encoder_select="audio_frame_queue mdct sinewin"
1723 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1724 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
1725 ac3_encoder_select="ac3dsp audiodsp dsputil mdct"
1726 ac3_fixed_encoder_select="ac3dsp audiodsp dsputil mdct"
1727 aic_decoder_select="golomb idctdsp"
1728 alac_encoder_select="lpc"
1729 als_decoder_select="bswapdsp"
1730 amrnb_decoder_select="lsp"
1731 amrwb_decoder_select="lsp"
1732 amv_decoder_select="sp5x_decoder"
1733 ape_decoder_select="bswapdsp"
1734 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1735 asv1_encoder_select="bswapdsp dsputil fdctdsp"
1736 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1737 asv2_encoder_select="bswapdsp dsputil fdctdsp"
1738 atrac1_decoder_select="mdct sinewin"
1739 atrac3_decoder_select="mdct"
1740 atrac3p_decoder_select="mdct sinewin"
1741 bink_decoder_select="blockdsp hpeldsp"
1742 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1743 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1744 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1745 cllc_decoder_select="bswapdsp"
1746 comfortnoise_encoder_select="lpc"
1747 cook_decoder_select="audiodsp mdct sinewin"
1748 cscd_decoder_select="lzo"
1749 cscd_decoder_suggest="zlib"
1750 dca_decoder_select="mdct"
1751 dnxhd_decoder_select="blockdsp idctdsp"
1752 dnxhd_encoder_select="aandcttables blockdsp dsputil fdctdsp idctdsp mpegvideoenc"
1753 dvvideo_decoder_select="dvprofile idctdsp"
1754 dvvideo_encoder_select="dsputil dvprofile fdctdsp"
1755 dxa_decoder_deps="zlib"
1756 eac3_decoder_select="ac3_decoder"
1757 eac3_encoder_select="ac3_encoder"
1758 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1759 eatgq_decoder_select="aandcttables idctdsp"
1760 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1761 exr_decoder_deps="zlib"
1762 ffv1_decoder_select="golomb rangecoder"
1763 ffv1_encoder_select="rangecoder"
1764 ffvhuff_decoder_select="huffyuv_decoder"
1765 ffvhuff_encoder_select="huffyuv_encoder"
1766 fic_decoder_select="golomb"
1767 flac_decoder_select="golomb"
1768 flac_encoder_select="bswapdsp golomb lpc"
1769 flashsv_decoder_deps="zlib"
1770 flashsv_encoder_deps="zlib"
1771 flashsv2_decoder_deps="zlib"
1772 flv_decoder_select="h263_decoder"
1773 flv_encoder_select="h263_encoder"
1774 fourxm_decoder_select="blockdsp bswapdsp"
1775 fraps_decoder_select="bswapdsp huffman"
1776 g2m_decoder_deps="zlib"
1777 g2m_decoder_select="blockdsp idctdsp"
1778 h261_decoder_select="mpeg_er mpegvideo"
1779 h261_encoder_select="aandcttables mpegvideoenc"
1780 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1781 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1782 h263i_decoder_select="h263_decoder"
1783 h263p_encoder_select="h263_encoder"
1784 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1785 h264_decoder_suggest="error_resilience"
1786 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1787 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1788 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1789 iac_decoder_select="imc_decoder"
1790 imc_decoder_select="bswapdsp fft mdct sinewin"
1791 indeo3_decoder_select="hpeldsp"
1792 interplay_video_decoder_select="hpeldsp"
1793 jpegls_decoder_select="golomb mjpeg_decoder"
1794 jpegls_encoder_select="golomb"
1795 jv_decoder_select="blockdsp"
1796 lagarith_decoder_select="huffyuvdsp"
1797 ljpeg_encoder_select="aandcttables idctdsp"
1798 loco_decoder_select="golomb"
1799 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1800 metasound_decoder_select="lsp mdct sinewin"
1801 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1802 mjpeg_decoder_select="blockdsp hpeldsp idctdsp"
1803 mjpeg_encoder_select="aandcttables mpegvideoenc"
1804 mjpegb_decoder_select="mjpeg_decoder"
1805 mlp_decoder_select="mlp_parser"
1806 motionpixels_decoder_select="bswapdsp"
1807 mp1_decoder_select="mpegaudio"
1808 mp1float_decoder_select="mpegaudio"
1809 mp2_decoder_select="mpegaudio"
1810 mp2float_decoder_select="mpegaudio"
1811 mp3_decoder_select="mpegaudio"
1812 mp3adu_decoder_select="mpegaudio"
1813 mp3adufloat_decoder_select="mpegaudio"
1814 mp3float_decoder_select="mpegaudio"
1815 mp3on4_decoder_select="mpegaudio"
1816 mp3on4float_decoder_select="mpegaudio"
1817 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1818 mpc8_decoder_select="mpegaudiodsp"
1819 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1820 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1821 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1822 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1823 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1824 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1825 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1826 mpeg4_encoder_select="h263_encoder"
1827 msmpeg4v1_decoder_select="h263_decoder"
1828 msmpeg4v2_decoder_select="h263_decoder"
1829 msmpeg4v2_encoder_select="h263_encoder"
1830 msmpeg4v3_decoder_select="h263_decoder"
1831 msmpeg4v3_encoder_select="h263_encoder"
1832 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
1833 mxpeg_decoder_select="mjpeg_decoder"
1834 nellymoser_decoder_select="mdct sinewin"
1835 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1836 nuv_decoder_select="idctdsp lzo"
1837 on2avc_decoder_select="mdct"
1838 opus_decoder_deps="avresample"
1839 png_decoder_deps="zlib"
1840 png_encoder_deps="zlib"
1841 png_encoder_select="huffyuvencdsp"
1842 prores_decoder_select="idctdsp"
1843 prores_encoder_select="fdctdsp"
1844 qcelp_decoder_select="lsp"
1845 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1846 ra_144_encoder_select="audio_frame_queue lpc"
1847 ralf_decoder_select="golomb"
1848 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1849 rv10_encoder_select="h263_encoder"
1850 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1851 rv20_encoder_select="h263_encoder"
1852 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1853 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1854 shorten_decoder_select="golomb"
1855 sipr_decoder_select="lsp"
1856 sp5x_decoder_select="mjpeg_decoder"
1857 svq1_decoder_select="hpeldsp"
1858 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1859 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1860 svq3_decoder_suggest="zlib"
1861 tak_decoder_select="audiodsp"
1862 theora_decoder_select="vp3_decoder"
1863 thp_decoder_select="mjpeg_decoder"
1864 tiff_decoder_suggest="zlib"
1865 tiff_encoder_suggest="zlib"
1866 truehd_decoder_select="mlp_decoder"
1867 truemotion2_decoder_select="bswapdsp"
1868 truespeech_decoder_select="bswapdsp"
1869 tscc_decoder_deps="zlib"
1870 twinvq_decoder_select="mdct lsp sinewin"
1871 utvideo_decoder_select="bswapdsp"
1872 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
1873 vble_decoder_select="huffyuvdsp"
1874 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp"
1875 vc1image_decoder_select="vc1_decoder"
1876 vorbis_decoder_select="mdct"
1877 vorbis_encoder_select="mdct"
1878 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1879 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1880 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1881 vp6a_decoder_select="vp6_decoder"
1882 vp6f_decoder_select="vp6_decoder"
1883 vp7_decoder_select="h264pred videodsp"
1884 vp8_decoder_select="h264pred videodsp"
1885 vp9_decoder_select="videodsp"
1886 webp_decoder_select="vp8_decoder"
1887 wmapro_decoder_select="mdct sinewin"
1888 wmav1_decoder_select="mdct sinewin"
1889 wmav1_encoder_select="mdct sinewin"
1890 wmav2_decoder_select="mdct sinewin"
1891 wmav2_encoder_select="mdct sinewin"
1892 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1893 wmv1_decoder_select="h263_decoder"
1894 wmv1_encoder_select="h263_encoder"
1895 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
1896 wmv2_encoder_select="h263_encoder"
1897 wmv3_decoder_select="vc1_decoder"
1898 wmv3image_decoder_select="wmv3_decoder"
1899 zerocodec_decoder_deps="zlib"
1900 zlib_decoder_deps="zlib"
1901 zlib_encoder_deps="zlib"
1902 zmbv_decoder_deps="zlib"
1903 zmbv_encoder_deps="zlib"
1904
1905 # hardware accelerators
1906 dxva2_deps="dxva2api_h"
1907 vaapi_deps="va_va_h"
1908 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1909 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1910 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1911
1912 h263_vaapi_hwaccel_deps="vaapi"
1913 h263_vaapi_hwaccel_select="h263_decoder"
1914 h263_vdpau_hwaccel_deps="vdpau"
1915 h263_vdpau_hwaccel_select="h263_decoder"
1916 h264_dxva2_hwaccel_deps="dxva2"
1917 h264_dxva2_hwaccel_select="h264_decoder"
1918 h264_vaapi_hwaccel_deps="vaapi"
1919 h264_vaapi_hwaccel_select="h264_decoder"
1920 h264_vda_hwaccel_deps="vda"
1921 h264_vda_hwaccel_select="h264_decoder"
1922 h264_vda_old_hwaccel_deps="vda"
1923 h264_vda_old_hwaccel_select="h264_decoder"
1924 h264_vdpau_hwaccel_deps="vdpau"
1925 h264_vdpau_hwaccel_select="h264_decoder"
1926 mpeg1_vdpau_hwaccel_deps="vdpau"
1927 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1928 mpeg2_dxva2_hwaccel_deps="dxva2"
1929 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1930 mpeg2_vaapi_hwaccel_deps="vaapi"
1931 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1932 mpeg2_vdpau_hwaccel_deps="vdpau"
1933 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1934 mpeg4_vaapi_hwaccel_deps="vaapi"
1935 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1936 mpeg4_vdpau_hwaccel_deps="vdpau"
1937 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1938 vc1_dxva2_hwaccel_deps="dxva2"
1939 vc1_dxva2_hwaccel_select="vc1_decoder"
1940 vc1_vaapi_hwaccel_deps="vaapi"
1941 vc1_vaapi_hwaccel_select="vc1_decoder"
1942 vc1_vdpau_hwaccel_deps="vdpau"
1943 vc1_vdpau_hwaccel_select="vc1_decoder"
1944 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1945 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1946 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1947
1948 # parsers
1949 h264_parser_select="h264_decoder"
1950 mpegvideo_parser_select="mpegvideo"
1951 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
1952 vc1_parser_select="mpegvideo"
1953
1954 # external libraries
1955 libfaac_encoder_deps="libfaac"
1956 libfaac_encoder_select="audio_frame_queue"
1957 libfdk_aac_decoder_deps="libfdk_aac"
1958 libfdk_aac_encoder_deps="libfdk_aac"
1959 libfdk_aac_encoder_select="audio_frame_queue"
1960 libgsm_decoder_deps="libgsm"
1961 libgsm_encoder_deps="libgsm"
1962 libgsm_ms_decoder_deps="libgsm"
1963 libgsm_ms_encoder_deps="libgsm"
1964 libilbc_decoder_deps="libilbc"
1965 libilbc_encoder_deps="libilbc"
1966 libmp3lame_encoder_deps="libmp3lame"
1967 libmp3lame_encoder_select="audio_frame_queue"
1968 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1969 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1970 libopencore_amrnb_encoder_select="audio_frame_queue"
1971 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1972 libopenjpeg_decoder_deps="libopenjpeg"
1973 libopenjpeg_encoder_deps="libopenjpeg"
1974 libopus_decoder_deps="libopus"
1975 libopus_encoder_deps="libopus"
1976 libopus_encoder_select="audio_frame_queue"
1977 libschroedinger_decoder_deps="libschroedinger"
1978 libschroedinger_encoder_deps="libschroedinger"
1979 libspeex_decoder_deps="libspeex"
1980 libspeex_encoder_deps="libspeex"
1981 libspeex_encoder_select="audio_frame_queue"
1982 libtheora_encoder_deps="libtheora"
1983 libtwolame_encoder_deps="libtwolame"
1984 libvo_aacenc_encoder_deps="libvo_aacenc"
1985 libvo_aacenc_encoder_select="audio_frame_queue"
1986 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1987 libvorbis_encoder_deps="libvorbis"
1988 libvorbis_encoder_select="audio_frame_queue"
1989 libvpx_vp8_decoder_deps="libvpx"
1990 libvpx_vp8_encoder_deps="libvpx"
1991 libvpx_vp9_decoder_deps="libvpx"
1992 libvpx_vp9_encoder_deps="libvpx"
1993 libwavpack_encoder_deps="libwavpack"
1994 libwebp_encoder_deps="libwebp"
1995 libx264_encoder_deps="libx264"
1996 libx265_encoder_deps="libx265"
1997 libxavs_encoder_deps="libxavs"
1998 libxvid_encoder_deps="libxvid"
1999
2000 # demuxers / muxers
2001 ac3_demuxer_select="ac3_parser"
2002 asf_demuxer_select="riffdec"
2003 asf_muxer_select="riffenc"
2004 asf_stream_muxer_select="asf_muxer"
2005 avi_demuxer_select="riffdec"
2006 avi_muxer_select="riffenc"
2007 avisynth_demuxer_deps="avisynth"
2008 avisynth_demuxer_select="riffdec"
2009 caf_demuxer_select="riffdec"
2010 dirac_demuxer_select="dirac_parser"
2011 dv_demuxer_select="dvprofile"
2012 dv_muxer_select="dvprofile"
2013 dxa_demuxer_select="riffdec"
2014 eac3_demuxer_select="ac3_parser"
2015 f4v_muxer_select="mov_muxer"
2016 flac_demuxer_select="flac_parser"
2017 hds_muxer_select="flv_muxer"
2018 hls_muxer_select="mpegts_muxer"
2019 ipod_muxer_select="mov_muxer"
2020 ismv_muxer_select="mov_muxer"
2021 matroska_audio_muxer_select="matroska_muxer"
2022 matroska_demuxer_select="riffdec"
2023 matroska_demuxer_suggest="bzlib lzo zlib"
2024 matroska_muxer_select="riffenc"
2025 mmf_muxer_select="riffenc"
2026 mov_demuxer_select="riffdec"
2027 mov_demuxer_suggest="zlib"
2028 mov_muxer_select="riffenc rtpenc_chain"
2029 mp3_demuxer_select="mpegaudio_parser"
2030 mp4_muxer_select="mov_muxer"
2031 mpegts_muxer_select="adts_muxer latm_muxer"
2032 mpegtsraw_demuxer_select="mpegts_demuxer"
2033 mxf_d10_muxer_select="mxf_muxer"
2034 nut_muxer_select="riffenc"
2035 nuv_demuxer_select="riffdec"
2036 ogg_demuxer_select="golomb"
2037 psp_muxer_select="mov_muxer"
2038 rtp_demuxer_select="sdp_demuxer"
2039 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2040 rtsp_demuxer_select="http_protocol rtpdec"
2041 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2042 sap_demuxer_select="sdp_demuxer"
2043 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2044 sdp_demuxer_select="rtpdec"
2045 smoothstreaming_muxer_select="ismv_muxer"
2046 spdif_muxer_select="aac_parser"
2047 tak_demuxer_select="tak_parser"
2048 tg2_muxer_select="mov_muxer"
2049 tgp_muxer_select="mov_muxer"
2050 w64_demuxer_select="wav_demuxer"
2051 wav_demuxer_select="riffdec"
2052 wav_muxer_select="riffenc"
2053 webm_muxer_select="riffenc"
2054 wtv_demuxer_select="riffdec"
2055 xmv_demuxer_select="riffdec"
2056 xwma_demuxer_select="riffdec"
2057
2058 # indevs / outdevs
2059 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2060 alsa_outdev_deps="alsa_asoundlib_h"
2061 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2062 dv1394_indev_deps="dv1394"
2063 dv1394_indev_select="dv_demuxer"
2064 fbdev_indev_deps="linux_fb_h"
2065 jack_indev_deps="jack_jack_h pthreads"
2066 libcdio_indev_deps="libcdio"
2067 libdc1394_indev_deps="libdc1394"
2068 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2069 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2070 pulse_indev_deps="libpulse"
2071 sndio_indev_deps="sndio_h"
2072 sndio_outdev_deps="sndio_h"
2073 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2074 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2075 vfwcap_indev_extralibs="-lavicap32"
2076 x11grab_indev_deps="x11grab XShmCreateImage"
2077
2078 # protocols
2079 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2080 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2081 ffrtmpcrypt_protocol_select="tcp_protocol"
2082 ffrtmphttp_protocol_deps="!librtmp_protocol"
2083 ffrtmphttp_protocol_select="http_protocol"
2084 gopher_protocol_select="network"
2085 http_protocol_select="tcp_protocol"
2086 httpproxy_protocol_select="tcp_protocol"
2087 https_protocol_select="tls_protocol"
2088 librtmp_protocol_deps="librtmp"
2089 librtmpe_protocol_deps="librtmp"
2090 librtmps_protocol_deps="librtmp"
2091 librtmpt_protocol_deps="librtmp"
2092 librtmpte_protocol_deps="librtmp"
2093 mmsh_protocol_select="http_protocol"
2094 mmst_protocol_select="network"
2095 rtmp_protocol_deps="!librtmp_protocol"
2096 rtmp_protocol_select="tcp_protocol"
2097 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2098 rtmps_protocol_deps="!librtmp_protocol"
2099 rtmps_protocol_select="tls_protocol"
2100 rtmpt_protocol_select="ffrtmphttp_protocol"
2101 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2102 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2103 rtp_protocol_select="udp_protocol"
2104 sctp_protocol_deps="struct_sctp_event_subscribe"
2105 sctp_protocol_select="network"
2106 srtp_protocol_select="rtp_protocol"
2107 tcp_protocol_select="network"
2108 tls_protocol_deps_any="openssl gnutls"
2109 tls_protocol_select="tcp_protocol"
2110 udp_protocol_select="network"
2111 unix_protocol_deps="sys_un_h"
2112 unix_protocol_select="network"
2113
2114 # filters
2115 blackframe_filter_deps="gpl"
2116 boxblur_filter_deps="gpl"
2117 bs2b_filter_deps="libbs2b"
2118 cropdetect_filter_deps="gpl"
2119 delogo_filter_deps="gpl"
2120 drawtext_filter_deps="libfreetype"
2121 frei0r_filter_deps="frei0r dlopen"
2122 frei0r_filter_extralibs='$ldl'
2123 frei0r_src_filter_deps="frei0r dlopen"
2124 frei0r_src_filter_extralibs='$ldl'
2125 hqdn3d_filter_deps="gpl"
2126 interlace_filter_deps="gpl"
2127 ocv_filter_deps="libopencv"
2128 resample_filter_deps="avresample"
2129 scale_filter_deps="swscale"
2130
2131 # examples
2132 avcodec_example_deps="avcodec avutil"
2133 filter_audio_example_deps="avfilter avutil"
2134 metadata_example_deps="avformat avutil"
2135 output_example_deps="avcodec avformat avutil swscale"
2136 transcode_aac_example_deps="avcodec avformat avresample"
2137
2138 # libraries, in linking order
2139 avcodec_deps="avutil"
2140 avdevice_deps="avformat avcodec avutil"
2141 avfilter_deps="avutil"
2142 avformat_deps="avcodec avutil"
2143 avresample_deps="avutil"
2144 swscale_deps="avutil"
2145
2146 # programs
2147 avconv_deps="avcodec avfilter avformat avresample swscale"
2148 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2149 fps_filter null_filter resample_filter scale_filter
2150 setpts_filter trim_filter"
2151 avplay_deps="avcodec avformat avresample swscale sdl"
2152 avplay_libs='$sdl_libs'
2153 avplay_select="rdft"
2154 avprobe_deps="avcodec avformat"
2155
2156 # documentation
2157 pod2man_deps="doc"
2158 texi2html_deps="doc"
2159
2160 # default parameters
2161
2162 logfile="config.log"
2163
2164 # installation paths
2165 prefix_default="/usr/local"
2166 bindir_default='${prefix}/bin'
2167 datadir_default='${prefix}/share/avconv'
2168 docdir_default='${prefix}/share/doc/libav'
2169 incdir_default='${prefix}/include'
2170 libdir_default='${prefix}/lib'
2171 mandir_default='${prefix}/share/man'
2172 shlibdir_default="$libdir_default"
2173
2174 # toolchain
2175 ar_default="ar"
2176 cc_default="gcc"
2177 host_cc_default="gcc"
2178 cp_f="cp -f"
2179 ln_s="ln -s -f"
2180 nm_default="nm -g"
2181 objformat="elf"
2182 pkg_config_default=pkg-config
2183 ranlib="ranlib"
2184 strip="strip"
2185 yasmexe="yasm"
2186
2187 nogas=":"
2188
2189 # machine
2190 arch_default=$(uname -m)
2191 cpu="generic"
2192
2193 # OS
2194 target_os_default=$(tolower $(uname -s))
2195 host_os=$target_os_default
2196
2197 # configurable options
2198 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2199
2200 enable asm
2201 enable debug
2202 enable doc
2203 enable optimizations
2204 enable safe_bitstream_reader
2205 enable static
2206 enable swscale_alpha
2207
2208 # By default, enable only those hwaccels that have no external dependencies.
2209 enable dxva2 vdpau
2210
2211 # build settings
2212 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2213 LIBPREF="lib"
2214 LIBSUF=".a"
2215 FULLNAME='$(NAME)$(BUILDSUF)'
2216 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2217 SLIBPREF="lib"
2218 SLIBSUF=".so"
2219 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2220 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2221 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2222 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2223 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2224 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2225
2226 asflags_filter=echo
2227 cflags_filter=echo
2228 ldflags_filter=echo
2229
2230 AS_C='-c'
2231 AS_O='-o $@'
2232 CC_C='-c'
2233 CC_E='-E -o $@'
2234 CC_O='-o $@'
2235 LD_O='-o $@'
2236 LD_LIB='-l%'
2237 LD_PATH='-L'
2238 HOSTCC_C='-c'
2239 HOSTCC_E='-E -o $@'
2240 HOSTCC_O='-o $@'
2241 HOSTLD_O='-o $@'
2242
2243 host_libs='-lm'
2244 host_cflags_filter=echo
2245 host_ldflags_filter=echo
2246
2247 target_path='$(CURDIR)'
2248
2249 # since the object filename is not given with the -MM flag, the compiler
2250 # is only able to print the basename, and we must add the path ourselves
2251 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2252 DEPFLAGS='-MM'
2253
2254 # find source path
2255 if test -f configure; then
2256 source_path=.
2257 else
2258 source_path=$(cd $(dirname "$0"); pwd)
2259 echo "$source_path" | grep -q '[[:blank:]]' &&
2260 die "Out of tree builds are impossible with whitespace in source path."
2261 test -e "$source_path/config.h" &&
2262 die "Out of tree builds are impossible with config.h in source dir."
2263 fi
2264
2265 for v in "$@"; do
2266 r=${v#*=}
2267 l=${v%"$r"}
2268 r=$(sh_quote "$r")
2269 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2270 done
2271
2272 find_things(){
2273 thing=$1
2274 pattern=$2
2275 file=$source_path/$3
2276 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2277 }
2278
2279 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2280 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2281 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2282 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2283 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2284 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2285 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2286 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2287 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2288 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2289 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2290
2291 ALL_COMPONENTS="
2292 $BSF_LIST
2293 $DECODER_LIST
2294 $DEMUXER_LIST
2295 $ENCODER_LIST
2296 $FILTER_LIST
2297 $HWACCEL_LIST
2298 $INDEV_LIST
2299 $MUXER_LIST
2300 $OUTDEV_LIST
2301 $PARSER_LIST
2302 $PROTOCOL_LIST
2303 "
2304
2305 for n in $COMPONENT_LIST; do
2306 v=$(toupper ${n%s})_LIST
2307 eval enable \$$v
2308 eval ${n}_if_any="\$$v"
2309 done
2310
2311 enable $ARCH_EXT_LIST
2312
2313 die_unknown(){
2314 echo "Unknown option \"$1\"."
2315 echo "See $0 --help for available options."
2316 exit 1
2317 }
2318
2319 print_3_columns() {
2320 cat | tr ' ' '\n' | sort | pr -r -3 -t
2321 }
2322
2323 show_list() {
2324 suffix=_$1
2325 shift
2326 echo $* | sed s/$suffix//g | print_3_columns
2327 exit 0
2328 }
2329
2330 rand_list(){
2331 IFS=', '
2332 set -- $*
2333 unset IFS
2334 for thing; do
2335 comp=${thing%:*}
2336 prob=${thing#$comp}
2337 prob=${prob#:}
2338 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2339 echo "prob ${prob:-0.5}"
2340 printf '%s\n' $comp
2341 done
2342 }
2343
2344 do_random(){
2345 action=$1
2346 shift
2347 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2348 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2349 }
2350
2351 for opt do
2352 optval="${opt#*=}"
2353 case "$opt" in
2354 --extra-ldflags=*)
2355 add_ldflags $optval
2356 ;;
2357 --extra-libs=*)
2358 add_extralibs $optval
2359 ;;
2360 --disable-devices)
2361 disable $INDEV_LIST $OUTDEV_LIST
2362 ;;
2363 --enable-debug=*)
2364 debuglevel="$optval"
2365 ;;
2366 --disable-programs)
2367 disable $PROGRAM_LIST
2368 ;;
2369 --disable-everything)
2370 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2371 ;;
2372 --disable-all)
2373 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2374 disable $LIBRARY_LIST $PROGRAM_LIST doc
2375 ;;
2376 --enable-random|--disable-random)
2377 action=${opt%%-random}
2378 do_random ${action#--} $COMPONENT_LIST
2379 ;;
2380 --enable-random=*|--disable-random=*)
2381 action=${opt%%-random=*}
2382 do_random ${action#--} $optval
2383 ;;
2384 --enable-*=*|--disable-*=*)
2385 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2386 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2387 eval list=\$$(toupper $thing)_LIST
2388 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2389 $action $(filter "$name" $list)
2390 ;;
2391 --enable-avserver|--disable-avserver*)
2392 warn "avserver has been removed, the ${opt} option is only"\
2393 "provided for compatibility and will be removed in the future"
2394 ;;
2395 --enable-?*|--disable-?*)
2396 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2397 if is_in $option $COMPONENT_LIST; then
2398 test $action = disable && action=unset
2399 eval $action \$$(toupper ${option%s})_LIST
2400 elif is_in $option $CMDLINE_SELECT; then
2401 $action $option
2402 else
2403 die_unknown $opt
2404 fi
2405 ;;
2406 --list-*)
2407 NAME="${opt#--list-}"
2408 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2409 NAME=${NAME%s}
2410 eval show_list $NAME \$$(toupper $NAME)_LIST
2411 ;;
2412 --help|-h) show_help
2413 ;;
2414 *)
2415 optname="${opt%%=*}"
2416 optname="${optname#--}"
2417 optname=$(echo "$optname" | sed 's/-/_/g')
2418 if is_in $optname $CMDLINE_SET; then
2419 eval $optname='$optval'
2420 elif is_in $optname $CMDLINE_APPEND; then
2421 append $optname "$optval"
2422 else
2423 die_unknown $opt
2424 fi
2425 ;;
2426 esac
2427 done
2428
2429 disabled logging && logfile=/dev/null
2430
2431 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2432 set >> $logfile
2433
2434 test -n "$cross_prefix" && enable cross_compile
2435
2436 if enabled cross_compile; then
2437 test -n "$arch" && test -n "$target_os" ||
2438 die "Must specify target arch and OS when cross-compiling"
2439 fi
2440
2441 ar_default="${cross_prefix}${ar_default}"
2442 cc_default="${cross_prefix}${cc_default}"
2443 nm_default="${cross_prefix}${nm_default}"
2444 pkg_config_default="${cross_prefix}${pkg_config_default}"
2445 ranlib="${cross_prefix}${ranlib}"
2446 strip="${cross_prefix}${strip}"
2447
2448 sysinclude_default="${sysroot}/usr/include"
2449
2450 case "$toolchain" in
2451 clang-asan)
2452 cc_default="clang"
2453 add_cflags -fsanitize=address
2454 add_ldflags -fsanitize=address
2455 ;;
2456 clang-tsan)
2457 cc_default="clang"
2458 add_cflags -fsanitize=thread -pie
2459 add_ldflags -fsanitize=thread -pie
2460 ;;
2461 clang-usan)
2462 cc_default="clang"
2463 add_cflags -fsanitize=undefined -O1
2464 add_ldflags -fsanitize=undefined
2465 ;;
2466 gcc-asan)
2467 cc_default="gcc"
2468 add_cflags -fsanitize=address
2469 add_ldflags -fsanitize=address
2470 ;;
2471 gcc-tsan)
2472 cc_default="gcc"
2473 add_cflags -fsanitize=thread -pie -fPIC
2474 add_ldflags -fsanitize=thread -pie -fPIC
2475 ;;
2476 gcc-usan)
2477 cc_default="gcc"
2478 add_cflags -fsanitize=undefined
2479 add_ldflags -fsanitize=undefined
2480 ;;
2481 valgrind-massif)
2482 target_exec_default="valgrind"
2483 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2484 ;;
2485 valgrind-memcheck)
2486 target_exec_default="valgrind"
2487 target_exec_args="--track-origins=yes --leak-check=full"
2488 ;;
2489 msvc)
2490 # Check whether the current MSVC version needs the C99 converter.
2491 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2492 # support enough of C99 to build libav. Default to the new
2493 # behaviour if the regexp was unable to match anything, since this
2494 # successfully parses the version number of existing supported
2495 # versions that require the converter (MSVC 2010 and 2012).
2496 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2497 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2498 cc_default="cl"
2499 else
2500 cc_default="c99wrap cl"
2501 fi
2502 ld_default="link"
2503 nm_default="dumpbin -symbols"
2504 ar_default="lib"
2505 target_os_default="win32"
2506 # Use a relative path for TMPDIR. This makes sure all the
2507 # ffconf temp files are written with a relative path, avoiding
2508 # issues with msys/win32 path conversion for MSVC parameters
2509 # such as -Fo<file> or -out:<file>.
2510 TMPDIR=.
2511 ;;
2512 icl)
2513 cc_default="icl"
2514 ld_default="xilink"
2515 nm_default="dumpbin -symbols"
2516 ar_default="xilib"
2517 target_os_default="win32"
2518 TMPDIR=.
2519 ;;
2520 gcov)
2521 add_cflags -fprofile-arcs -ftest-coverage
2522 add_ldflags -fprofile-arcs -ftest-coverage
2523 ;;
2524 hardened)
2525 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2526 add_ldflags -Wl,-z,relro -Wl,-z,now
2527 ;;
2528 ?*)
2529 die "Unknown toolchain $toolchain"
2530 ;;
2531 esac
2532
2533 set_default arch cc pkg_config sysinclude target_exec target_os
2534 enabled cross_compile || host_cc_default=$cc
2535 set_default host_cc
2536
2537 if ! $pkg_config --version >/dev/null 2>&1; then
2538 warn "$pkg_config not found, library detection may fail."
2539 pkg_config=false
2540 fi
2541
2542 exesuf() {
2543 case $1 in
2544 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2545 esac
2546 }
2547
2548 EXESUF=$(exesuf $target_os)
2549 HOSTEXESUF=$(exesuf $host_os)
2550
2551 # set temporary file name
2552 : ${TMPDIR:=$TEMPDIR}
2553 : ${TMPDIR:=$TMP}
2554 : ${TMPDIR:=/tmp}
2555
2556 if ! check_cmd mktemp -u XXXXXX; then
2557 # simple replacement for missing mktemp
2558 # NOT SAFE FOR GENERAL USE
2559 mktemp(){
2560 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2561 }
2562 fi
2563
2564 tmpfile(){
2565 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2566 (set -C; exec > $tmp) 2>/dev/null ||
2567 die "Unable to create temporary file in $TMPDIR."
2568 append TMPFILES $tmp
2569 eval $1=$tmp
2570 }
2571
2572 trap 'rm -f -- $TMPFILES' EXIT
2573
2574 tmpfile TMPASM .asm
2575 tmpfile TMPC .c
2576 tmpfile TMPE $EXESUF
2577 tmpfile TMPH .h
2578 tmpfile TMPO .o
2579 tmpfile TMPS .S
2580 tmpfile TMPSH .sh
2581 tmpfile TMPV .ver
2582
2583 unset -f mktemp
2584
2585 chmod +x $TMPE
2586
2587 # make sure we can execute files in $TMPDIR
2588 cat > $TMPSH 2>> $logfile <<EOF
2589 #! /bin/sh
2590 EOF
2591 chmod +x $TMPSH >> $logfile 2>&1
2592 if ! $TMPSH >> $logfile 2>&1; then
2593 cat <<EOF
2594 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2595 variable to another directory and make sure that it is not mounted noexec.
2596 EOF
2597 die "Sanity test failed."
2598 fi
2599
2600 ccc_flags(){
2601 for flag; do
2602 case $flag in
2603 -std=c99) echo -c99 ;;
2604 -mcpu=*) echo -arch ${flag#*=} ;;
2605 -mieee) echo -ieee ;;
2606 -O*|-fast) echo $flag ;;
2607 -fno-math-errno) echo -assume nomath_errno ;;
2608 -g) echo -g3 ;;
2609 -Wall) echo -msg_enable level2 ;;
2610 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2611 -Wl,*) echo $flag ;;
2612 -f*|-W*) ;;
2613 *) echo $flag ;;
2614 esac
2615 done
2616 }
2617
2618 cparser_flags(){
2619 for flag; do
2620 case $flag in
2621 -Wno-switch) echo -Wno-switch-enum ;;
2622 -Wno-format-zero-length) ;;
2623 -Wdisabled-optimization) ;;
2624 -Wno-pointer-sign) echo -Wno-other ;;
2625 *) echo $flag ;;
2626 esac
2627 done
2628 }
2629
2630 msvc_common_flags(){
2631 for flag; do
2632 case $flag in
2633 # In addition to specifying certain flags under the compiler
2634 # specific filters, they must be specified here as well or else the
2635 # generic catch all at the bottom will print the original flag.
2636 -Wall) ;;
2637 -std=c99) ;;
2638 # Common flags
2639 -fomit-frame-pointer) ;;
2640 -g) echo -Z7 ;;
2641 -fno-math-errno) ;;
2642 -fno-common) ;;
2643 -fno-signed-zeros) ;;
2644 -fPIC) ;;
2645 -mthumb) ;;
2646 -march=*) ;;
2647 -lz) echo zlib.lib ;;
2648 -lavifil32) echo vfw32.lib ;;
2649 -lavicap32) echo vfw32.lib user32.lib ;;
2650 -l*) echo ${flag#-l}.lib ;;
2651 *) echo $flag ;;
2652 esac
2653 done
2654 }
2655
2656 msvc_flags(){
2657 msvc_common_flags "$@"
2658 for flag; do
2659 case $flag in
2660 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2661 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2662 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2663 -wd4273 ;;
2664 esac
2665 done
2666 }
2667
2668 icl_flags(){
2669 msvc_common_flags "$@"
2670 for flag; do
2671 case $flag in
2672 # Despite what Intel's documentation says -Wall, which is supported
2673 # on Windows, does enable remarks so disable them here.
2674 -Wall) echo $flag -Qdiag-disable:remark ;;
2675 -std=c99) echo -Qstd=c99 ;;
2676 esac
2677 done
2678 }
2679
2680 pgi_flags(){
2681 for flag; do
2682 case $flag in
2683 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2684 -fomit-frame-pointer) echo -Mnoframe ;;
2685 -g) echo -gopt ;;
2686 *) echo $flag ;;
2687 esac
2688 done
2689 }
2690
2691 suncc_flags(){
2692 for flag; do
2693 case $flag in
2694 -march=*|-mcpu=*)
2695 case "${flag#*=}" in
2696 native) echo -xtarget=native ;;
2697 v9|niagara) echo -xarch=sparc ;;
2698 ultrasparc) echo -xarch=sparcvis ;;
2699 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2700 i586|pentium) echo -xchip=pentium ;;
2701 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2702 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2703 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2704 pentium4*) echo -xtarget=pentium4 ;;
2705 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2706 *-sse3) echo -xarch=sse3 ;;
2707 core2) echo -xarch=ssse3 -xchip=core2 ;;
2708 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2709 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2710 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2711 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2712 k8|opteron|athlon64|athlon-fx)
2713 echo -xarch=sse2a ;;
2714 athlon*) echo -xarch=pentium_proa ;;
2715 esac
2716 ;;
2717 -std=c99) echo -xc99 ;;
2718 -fomit-frame-pointer) echo -xregs=frameptr ;;
2719 -fPIC) echo -KPIC -xcode=pic32 ;;
2720 -W*,*) echo $flag ;;
2721 -f*-*|-W*|-mimpure-text) ;;
2722 -shared) echo -G ;;
2723 *) echo $flag ;;
2724 esac
2725 done
2726 }
2727
2728 tms470_flags(){
2729 for flag; do
2730 case $flag in
2731 -march=*|-mcpu=*)
2732 case "${flag#*=}" in
2733 armv7-a|cortex-a*) echo -mv=7a8 ;;
2734 armv7-r|cortex-r*) echo -mv=7r4 ;;
2735 armv7-m|cortex-m*) echo -mv=7m3 ;;
2736 armv6*|arm11*) echo -mv=6 ;;
2737 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2738 echo -mv=5e ;;
2739 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2740 esac
2741 ;;
2742 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2743 -mfpu=vfp) echo --float_support=vfpv2 ;;
2744 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2745 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2746 -msoft-float) echo --float_support=vfplib ;;
2747 -O[0-3]|-mf=*) echo $flag ;;
2748 -g) echo -g -mn ;;
2749 -pds=*) echo $flag ;;
2750 -D*|-I*) echo $flag ;;
2751 --gcc|--abi=*) echo $flag ;;
2752 -me) echo $flag ;;
2753 esac
2754 done
2755 }
2756
2757 probe_cc(){
2758 pfx=$1
2759 _cc=$2
2760
2761 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2762 unset _ld_o _ldflags _ld_lib _ld_path
2763 unset _depflags _DEPCMD _DEPFLAGS
2764 _flags_filter=echo
2765
2766 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2767 _type=llvm_gcc
2768 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2769 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2770 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2771 _cflags_speed='-O3'
2772 _cflags_size='-Os'
2773 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2774 _type=gcc
2775 gcc_version=$($_cc --version | head -n1)
2776 gcc_basever=$($_cc -dumpversion)
2777 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2778 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2779 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2780 if ! $_cc -dumpversion | grep -q '^2\.'; then
2781 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2782 fi
2783 _cflags_speed='-O3'
2784 _cflags_size='-Os'
2785 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2786 _type=icc
2787 _ident=$($_cc --version | head -n1)
2788 _depflags='-MMD'
2789 _cflags_speed='-O3'
2790 _cflags_size='-Os'
2791 _cflags_noopt='-O1'
2792 elif $_cc -v 2>&1 | grep -q xlc; then
2793 _type=xlc
2794 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2795 _cflags_speed='-O5'
2796 _cflags_size='-O5 -qcompact'
2797 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2798 _type=ccc
2799 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2800 _DEPFLAGS='-M'
2801 _cflags_speed='-fast'
2802 _cflags_size='-O1'
2803 _flags_filter=ccc_flags
2804 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2805 test -d "$sysroot" || die "No valid sysroot specified."
2806 _type=armcc
2807 _ident=$($_cc --vsn | head -n1 | sed 's/.*: //')
2808 armcc_conf="$PWD/armcc.conf"
2809 $_cc --arm_linux_configure \
2810 --arm_linux_config_file="$armcc_conf" \
2811 --configure_sysroot="$sysroot" \
2812 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2813 die "Error creating armcc configuration file."
2814 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2815 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2816 as_default="${cross_prefix}gcc"
2817 _depflags='-MMD'
2818 _cflags_speed='-O3'
2819 _cflags_size='-Os'
2820 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2821 _type=tms470
2822 _ident=$($_cc -version | head -n1 | tr -s ' ')
2823 _flags='--gcc --abi=eabi -me'
2824 _cc_e='-ppl -fe=$@'
2825 _cc_o='-fe=$@'
2826 _depflags='-ppa -ppd=$(@:.o=.d)'
2827 _cflags_speed='-O3 -mf=5'
2828 _cflags_size='-O3 -mf=2'
2829 _flags_filter=tms470_flags
2830 elif $_cc -v 2>&1 | grep -q clang; then
2831 _type=clang
2832 _ident=$($_cc --version | head -n1)
2833 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2834 _cflags_speed='-O3'
2835 _cflags_size='-Os'
2836 elif $_cc -V 2>&1 | grep -q Sun; then
2837 _type=suncc
2838 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2839 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2840 _DEPFLAGS='-xM1 -xc99'
2841 _ldflags='-std=c99'
2842 _cflags_speed='-O5'
2843 _cflags_size='-O5 -xspace'
2844 _flags_filter=suncc_flags
2845 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2846 _type=pathscale
2847 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2848 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2849 _cflags_speed='-O2'
2850 _cflags_size='-Os'
2851 _flags_filter='filter_out -Wdisabled-optimization'
2852 elif $_cc -v 2>&1 | grep -q Open64; then
2853 _type=open64
2854 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2855 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2856 _cflags_speed='-O2'
2857 _cflags_size='-Os'
2858 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2859 elif $_cc -V 2>&1 | grep -q Portland; then
2860 _type=pgi
2861 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2862 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2863 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2864 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2865 _cflags_noopt="-O1"
2866 _flags_filter=pgi_flags
2867 elif $_cc 2>&1 | grep -q Microsoft; then
2868 _type=msvc
2869 _ident=$($cc 2>&1 | head -n1)
2870 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2871 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2872 _cflags_speed="-O2"
2873 _cflags_size="-O1"
2874 if $_cc 2>&1 | grep -q Linker; then
2875 _ld_o='-out:$@'
2876 else
2877 _ld_o='-Fe$@'
2878 fi
2879 _cc_o='-Fo$@'
2880 _cc_e='-P -Fi$@'
2881 _flags_filter=msvc_flags
2882 _ld_lib='lib%.a'
2883 _ld_path='-libpath:'
2884 _flags='-nologo'
2885 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2886 if [ $pfx = hostcc ]; then
2887 append _cflags -Dsnprintf=_snprintf
2888 fi
2889 elif $_cc 2>&1 | grep -q Intel; then
2890 _type=icl
2891 _ident=$($cc 2>&1 | head -n1)
2892 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2893 # Not only is O3 broken on 13.x+ but it is slower on all previous
2894 # versions (tested) as well.
2895 _cflags_speed="-O2"
2896 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2897 if $_cc 2>&1 | grep -q Linker; then
2898 _ld_o='-out:$@'
2899 else
2900 _ld_o='-Fe$@'
2901 fi
2902 _cc_o='-Fo$@'
2903 _cc_e='-P'
2904 _flags_filter=icl_flags
2905 _ld_lib='lib%.a'
2906 _ld_path='-libpath:'
2907 # -Qdiag-error to make icl error when seeing certain unknown arguments
2908 _flags='-nologo -Qdiag-error:4044,10157'
2909 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2910 # with MSVC which enables it by default.
2911 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2912 if [ $pfx = hostcc ]; then
2913 append _cflags -Dsnprintf=_snprintf
2914 fi
2915 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2916 _type=cparser
2917 _ident=$($_cc --version | head -n1)
2918 _depflags='-MMD'
2919 _cflags_speed='-O4'
2920 _cflags_size='-O2'
2921 _flags_filter=cparser_flags
2922 fi
2923
2924 eval ${pfx}_type=\$_type
2925 eval ${pfx}_ident=\$_ident
2926 }
2927
2928 set_ccvars(){
2929 eval ${1}_C=\${_cc_c-\${${1}_C}}
2930 eval ${1}_E=\${_cc_e-\${${1}_E}}
2931 eval ${1}_O=\${_cc_o-\${${1}_O}}
2932
2933 if [ -n "$_depflags" ]; then
2934 eval ${1}_DEPFLAGS=\$_depflags
2935 else
2936 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2937 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2938 eval DEP${1}FLAGS=\$_flags
2939 fi
2940 }
2941
2942 probe_cc cc "$cc"
2943 cflags_filter=$_flags_filter
2944 cflags_speed=$_cflags_speed
2945 cflags_size=$_cflags_size
2946 cflags_noopt=$_cflags_noopt
2947 add_cflags $_flags $_cflags
2948 cc_ldflags=$_ldflags
2949 set_ccvars CC
2950
2951 probe_cc hostcc "$host_cc"
2952 host_cflags_filter=$_flags_filter
2953 add_host_cflags $_flags $_cflags
2954 set_ccvars HOSTCC
2955
2956 test -n "$cc_type" && enable $cc_type ||
2957 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2958
2959 : ${as_default:=$cc}
2960 : ${dep_cc_default:=$cc}
2961 : ${ld_default:=$cc}
2962 : ${host_ld_default:=$host_cc}
2963 set_default ar as dep_cc ld host_ld
2964
2965 probe_cc as "$as"
2966 asflags_filter=$_flags_filter
2967 add_asflags $_flags $_cflags
2968 set_ccvars AS
2969
2970 probe_cc ld "$ld"
2971 ldflags_filter=$_flags_filter
2972 add_ldflags $_flags $_ldflags
2973 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2974 LD_O=${_ld_o-$LD_O}
2975 LD_LIB=${_ld_lib-$LD_LIB}
2976 LD_PATH=${_ld_path-$LD_PATH}
2977
2978 probe_cc hostld "$host_ld"
2979 host_ldflags_filter=$_flags_filter
2980 add_host_ldflags $_flags $_ldflags
2981 HOSTLD_O=${_ld_o-$HOSTLD_O}
2982
2983 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2984 probe_cc depcc "$dep_cc"
2985 CCDEP=${_DEPCMD:-$DEPCMD}
2986 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2987 DEPCCFLAGS=$_flags
2988 fi
2989
2990 if $ar 2>&1 | grep -q Microsoft; then
2991 arflags="-nologo"
2992 ar_o='-out:$@'
2993 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2994 arflags="rq"
2995 ar_o='$@'
2996 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2997 arflags='-Xany -r -c'
2998 ar_o='$@'
2999 else
3000 arflags="rc"
3001 ar_o='$@'
3002 fi
3003
3004 add_cflags $extra_cflags
3005 add_asflags $extra_cflags
3006
3007 if test -n "$sysroot"; then
3008 case "$cc_type" in
3009 gcc|llvm_gcc|clang)
3010 add_cppflags --sysroot="$sysroot"
3011 add_ldflags --sysroot="$sysroot"
3012 ;;
3013 tms470)
3014 add_cppflags -I"$sysinclude"
3015 add_ldflags --sysroot="$sysroot"
3016 ;;
3017 esac
3018 fi
3019
3020 if test "$cpu" = host; then
3021 enabled cross_compile &&
3022 die "--cpu=host makes no sense when cross-compiling."
3023
3024 case "$cc_type" in
3025 gcc|llvm_gcc)
3026 check_native(){
3027 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3028 sed -n "/cc1.*$1=/{
3029 s/.*$1=\\([^ ]*\\).*/\\1/
3030 p
3031 q
3032 }" $TMPE
3033 }
3034 cpu=$(check_native -march || check_native -mcpu)
3035 ;;
3036 esac
3037
3038 test "${cpu:-host}" = host &&
3039 die "--cpu=host not supported with compiler $cc"
3040 fi
3041
3042 # Deal with common $arch aliases
3043 case "$arch" in
3044 aarch64|arm64)
3045 arch="aarch64"
3046 ;;
3047 arm*)
3048 arch="arm"
3049 ;;
3050 mips*|IP*)
3051 arch="mips"
3052 ;;
3053 parisc*|hppa*)
3054 arch="parisc"
3055 ;;
3056 "Power Macintosh"|ppc*|powerpc*)
3057 arch="ppc"
3058 ;;
3059 s390|s390x)
3060 arch="s390"
3061 ;;
3062 sh4|sh)
3063 arch="sh4"
3064 ;;
3065 sun4u|sparc*)
3066 arch="sparc"
3067 ;;
3068 tilegx|tile-gx)
3069 arch="tilegx"
3070 ;;
3071 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3072 arch="x86"
3073 ;;
3074 esac
3075
3076 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3077 enable $arch
3078
3079 # Add processor-specific flags
3080 if enabled aarch64; then
3081
3082 case $cpu in
3083 armv*)
3084 cpuflags="-march=$cpu"
3085 ;;
3086 *)
3087 cpuflags="-mcpu=$cpu"
3088 ;;
3089 esac
3090
3091 elif enabled alpha; then
3092
3093 cpuflags="-mcpu=$cpu"
3094
3095 elif enabled arm; then
3096
3097 check_arm_arch() {
3098 check_cpp_condition stddef.h \
3099 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3100 $cpuflags
3101 }
3102
3103 probe_arm_arch() {
3104 if check_arm_arch 4; then echo armv4;
3105 elif check_arm_arch 4T; then echo armv4t;
3106 elif check_arm_arch 5; then echo armv5;
3107 elif check_arm_arch 5E; then echo armv5e;
3108 elif check_arm_arch 5T; then echo armv5t;
3109 elif check_arm_arch 5TE; then echo armv5te;
3110 elif check_arm_arch 5TEJ; then echo armv5te;
3111 elif check_arm_arch 6; then echo armv6;
3112 elif check_arm_arch 6J; then echo armv6j;
3113 elif check_arm_arch 6K; then echo armv6k;
3114 elif check_arm_arch 6Z; then echo armv6z;
3115 elif check_arm_arch 6ZK; then echo armv6zk;
3116 elif check_arm_arch 6T2; then echo armv6t2;
3117 elif check_arm_arch 7; then echo armv7;
3118 elif check_arm_arch 7A 7_A; then echo armv7-a;
3119 elif check_arm_arch 7R 7_R; then echo armv7-r;
3120 elif check_arm_arch 7M 7_M; then echo armv7-m;
3121 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3122 elif check_arm_arch 8A 8_A; then echo armv8-a;
3123 fi
3124 }
3125
3126 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3127
3128 case $cpu in
3129 armv*)
3130 cpuflags="-march=$cpu"
3131 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3132 ;;
3133 *)
3134 cpuflags="-mcpu=$cpu"
3135 case $cpu in
3136 cortex-a*) subarch=armv7a ;;
3137 cortex-r*) subarch=armv7r ;;
3138 cortex-m*) enable thumb; subarch=armv7m ;;
3139 arm11*) subarch=armv6 ;;
3140 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3141 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3142 *) subarch=$(probe_arm_arch) ;;
3143 esac
3144 ;;
3145 esac
3146
3147 case "$subarch" in
3148 armv5t*) enable fast_clz ;;
3149 armv[6-8]*) enable fast_clz fast_unaligned ;;
3150 esac
3151
3152 elif enabled avr32; then
3153
3154 case $cpu in
3155 ap7[02]0[0-2])
3156 subarch="avr32_ap"
3157 cpuflags="-mpart=$cpu"
3158 ;;
3159 ap)
3160 subarch="avr32_ap"
3161 cpuflags="-march=$cpu"
3162 ;;
3163 uc3[ab]*)
3164 subarch="avr32_uc"
3165 cpuflags="-mcpu=$cpu"
3166 ;;
3167 uc)
3168 subarch="avr32_uc"
3169 cpuflags="-march=$cpu"
3170 ;;
3171 esac
3172
3173 elif enabled bfin; then
3174
3175 cpuflags="-mcpu=$cpu"
3176
3177 elif enabled mips; then
3178
3179 cpuflags="-march=$cpu"
3180
3181 elif enabled ppc; then
3182
3183 disable ldbrx
3184
3185 case $(tolower $cpu) in
3186 601|ppc601|powerpc601)
3187 cpuflags="-mcpu=601"
3188 disable altivec
3189 ;;
3190 603*|ppc603*|powerpc603*)
3191 cpuflags="-mcpu=603"
3192 disable altivec
3193 ;;
3194 604*|ppc604*|powerpc604*)
3195 cpuflags="-mcpu=604"
3196 disable altivec
3197 ;;
3198 g3|75*|ppc75*|powerpc75*)
3199 cpuflags="-mcpu=750"
3200 disable altivec
3201 ;;
3202 g4|745*|ppc745*|powerpc745*)
3203 cpuflags="-mcpu=7450"
3204 ;;
3205 74*|ppc74*|powerpc74*)
3206 cpuflags="-mcpu=7400"
3207 ;;
3208 g5|970|ppc970|powerpc970)
3209 cpuflags="-mcpu=970"
3210 ;;
3211 power[3-7]*)
3212 cpuflags="-mcpu=$cpu"
3213 ;;
3214 cell)
3215 cpuflags="-mcpu=cell"
3216 enable ldbrx
3217 ;;
3218 e500mc)
3219 cpuflags="-mcpu=e500mc"
3220 disable altivec
3221 ;;
3222 e500v2)
3223 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3224 disable altivec
3225 disable dcbzl
3226 ;;
3227 e500)
3228 cpuflags="-mcpu=8540 -mhard-float"
3229 disable altivec
3230 disable dcbzl
3231 ;;
3232 esac
3233
3234 elif enabled sparc; then
3235
3236 case $cpu in
3237 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3238 cpuflags="-mcpu=$cpu"
3239 ;;
3240 ultrasparc*|niagara[234])
3241 cpuflags="-mcpu=$cpu"
3242 ;;
3243 esac
3244
3245 elif enabled x86; then
3246
3247 case $cpu in
3248 i[345]86|pentium)
3249 cpuflags="-march=$cpu"
3250 disable mmx
3251 ;;
3252 # targets that do NOT support nopl and conditional mov (cmov)
3253 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3254 cpuflags="-march=$cpu"
3255 disable i686
3256 ;;
3257 # targets that do support nopl and conditional mov (cmov)
3258 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3259 cpuflags="-march=$cpu"
3260 enable i686
3261 enable fast_cmov
3262 ;;
3263 # targets that do support conditional mov but on which it's slow
3264 pentium4|pentium4m|prescott|nocona)
3265 cpuflags="-march=$cpu"
3266 enable i686
3267 disable fast_cmov
3268 ;;
3269 esac
3270
3271 fi
3272
3273 if [ "$cpu" != generic ]; then
3274 add_cflags $cpuflags
3275 add_asflags $cpuflags
3276 fi
3277
3278 # compiler sanity check
3279 check_exec <<EOF
3280 int main(void){ return 0; }
3281 EOF
3282 if test "$?" != 0; then
3283 echo "$cc is unable to create an executable file."
3284 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3285 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3286 echo "Only do this if you know what cross compiling means."
3287 fi
3288 die "C compiler test failed."
3289 fi
3290
3291 add_cppflags -D_ISOC99_SOURCE
3292 check_cflags -std=c99
3293 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3294 #include <stdlib.h>
3295 EOF
3296 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3297 #include <stdlib.h>
3298 EOF
3299
3300 add_host_cppflags -D_ISOC99_SOURCE
3301 check_host_cflags -std=c99
3302 check_host_cflags -Wall
3303 check_host_cflags -O3
3304
3305 check_64bit(){
3306 arch32=$1
3307 arch64=$2
3308 expr=$3
3309 check_code cc "" "int test[2*($expr) - 1]" &&
3310 subarch=$arch64 || subarch=$arch32
3311 }
3312
3313 case "$arch" in
3314 aarch64|alpha|ia64)
3315 spic=$shared
3316 ;;
3317 mips)
3318 check_64bit mips mips64 '_MIPS_SIM > 1'
3319 spic=$shared
3320 ;;
3321 parisc)
3322 check_64bit parisc parisc64 'sizeof(void *) > 4'
3323 spic=$shared
3324 ;;
3325 ppc)
3326 check_64bit ppc ppc64 'sizeof(void *) > 4'
3327 spic=$shared
3328 ;;
3329 s390)
3330 check_64bit s390 s390x 'sizeof(void *) > 4'
3331 spic=$shared
3332 ;;
3333 sparc)
3334 check_64bit sparc sparc64 'sizeof(void *) > 4'
3335 spic=$shared
3336 ;;
3337 x86)
3338 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3339 if test "$subarch" = "x86_64"; then
3340 spic=$shared
3341 fi
3342 ;;
3343 esac
3344
3345 enable $subarch
3346 enabled spic && enable_weak pic
3347
3348 # OS specific
3349 case $target_os in
3350 aix)
3351 SHFLAGS=-shared
3352 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3353 enabled shared && add_ldflags -Wl,-brtl
3354 ;;
3355 android)
3356 disable symver
3357 SLIB_INSTALL_NAME='$(SLIBNAME)'
3358 SLIB_INSTALL_LINKS=
3359 # soname not set on purpose
3360 SHFLAGS=-shared
3361 ;;
3362 haiku)
3363 prefix_default="/boot/common"
3364 network_extralibs="-lnetwork"
3365 host_libs=
3366 ;;
3367 sunos)
3368 SHFLAGS='-shared -Wl,-h,$$(@F)'
3369 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3370 network_extralibs="-lsocket -lnsl"
3371 # When using suncc to build, the Solaris linker will mark
3372 # an executable with each instruction set encountered by
3373 # the Solaris assembler. As our libraries contain their own
3374 # guards for processor-specific code, instead suppress
3375 # generation of the HWCAPS ELF section on Solaris x86 only.
3376 enabled_all suncc x86 &&
3377 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3378 add_ldflags -Wl,-M,mapfile
3379 nm_default='nm -P -g'
3380 ;;
3381 netbsd)
3382 disable symver
3383 oss_indev_extralibs="-lossaudio"
3384 oss_outdev_extralibs="-lossaudio"
3385 ;;
3386 openbsd|bitrig)
3387 disable symver
3388 SHFLAGS='-shared'
3389 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3390 SLIB_INSTALL_LINKS=
3391 oss_indev_extralibs="-lossaudio"
3392 oss_outdev_extralibs="-lossaudio"
3393 ;;
3394 dragonfly)
3395 disable symver
3396 ;;
3397 freebsd)
3398 ;;
3399 bsd/os)
3400 add_extralibs -lpoll -lgnugetopt
3401 ;;
3402 darwin)
3403 gas="gas-preprocessor.pl $cc"
3404 enabled ppc && add_asflags -force_cpusubtype_ALL
3405 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3406 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3407 add_ldflags -Wl,-dynamic,-search_paths_first
3408 SLIBSUF=".dylib"
3409 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3410 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3411 objformat="macho"
3412 enabled x86_64 && objformat="macho64"
3413 enabled_any pic shared ||
3414 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3415 ;;
3416 mingw32*)
3417 if test $target_os = "mingw32ce"; then
3418 disable network
3419 else
3420 target_os=mingw32
3421 fi
3422 LIBTARGET=i386
3423 if enabled x86_64; then
3424 LIBTARGET="i386:x86-64"
3425 elif enabled arm; then
3426 LIBTARGET=arm-wince
3427 fi
3428 check_ldflags -Wl,--nxcompat
3429 check_ldflags -Wl,--dynamicbase
3430 shlibdir_default="$bindir_default"
3431 SLIBPREF=""
3432 SLIBSUF=".dll"
3433 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3434 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3435 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3436 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3437 SLIB_INSTALL_LINKS=
3438 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3439 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3440 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3441 objformat="win32"
3442 dlltool="${cross_prefix}dlltool"
3443 ranlib=:
3444 enable dos_paths
3445 ;;
3446 win32|win64)
3447 disable symver
3448 if enabled shared; then
3449 # Link to the import library instead of the normal static library
3450 # for shared libs.
3451 LD_LIB='%.lib'
3452 # Cannot build both shared and static libs with MSVC or icl.
3453 disable static
3454 fi
3455 shlibdir_default="$bindir_default"
3456 SLIBPREF=""
3457 SLIBSUF=".dll"
3458 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3459 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3460 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3461 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3462 SLIB_INSTALL_LINKS=
3463 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3464 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3465 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3466 objformat="win32"
3467 ranlib=:
3468 enable dos_paths
3469 ;;
3470 cygwin*)
3471 target_os=cygwin
3472 shlibdir_default="$bindir_default"
3473 SLIBPREF="cyg"
3474 SLIBSUF=".dll"
3475 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3476 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3477 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3478 SLIB_INSTALL_LINKS=
3479 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3480 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3481 objformat="win32"
3482 enable dos_paths
3483 ;;
3484 *-dos|freedos|opendos)
3485 network_extralibs="-lsocket"
3486 objformat="coff"
3487 enable dos_paths
3488 add_cppflags -U__STRICT_ANSI__
3489 ;;
3490 linux)
3491 enable dv1394
3492 ;;
3493 irix*)
3494 target_os=irix
3495 ranlib="echo ignoring ranlib"
3496 ;;
3497 os/2*)
3498 ln_s="cp -f"
3499 objformat="aout"
3500 add_cppflags -D_GNU_SOURCE
3501 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3502 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3503 LIBSUF="_s.a"
3504 SLIBPREF=""
3505 SLIBSUF=".dll"
3506 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3507 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3508 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3509 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3510 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3511 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3512 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3513 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3514 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3515 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3516 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3517 enable dos_paths
3518 ;;
3519 gnu/kfreebsd)
3520 add_cppflags -D_BSD_SOURCE
3521 ;;
3522 gnu)
3523 ;;
3524 qnx)
3525 add_cppflags -D_QNX_SOURCE
3526 network_extralibs="-lsocket"
3527 ;;
3528 symbian)
3529 SLIBSUF=".dll"
3530 enable dos_paths
3531 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3532 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3533 add_ldflags -Wl,--target1-abs,--no-undefined \
3534 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3535 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3536 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3537 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3538 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3539 ;;
3540 osf1)
3541 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3542 ;;
3543 minix)
3544 ;;
3545 plan9)
3546 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3547 -D_REENTRANT_SOURCE \
3548 -D_RESEARCH_SOURCE \
3549 -DFD_SETSIZE=96 \
3550 -DHAVE_SOCK_OPTS
3551 add_compat strtod.o strtod=avpriv_strtod
3552 network_extralibs='-lbsd'
3553 exeobjs=compat/plan9/main.o
3554 cp_f='cp'
3555 ;;
3556 none)
3557 ;;
3558 *)
3559 die "Unknown OS '$target_os'."
3560 ;;
3561 esac
3562
3563 # determine libc flavour
3564
3565 probe_libc(){
3566 pfx=$1
3567 pfx_no_=${pfx%_}
3568 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3569 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3570 eval ${pfx}libc_type=uclibc
3571 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3572 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3573 eval ${pfx}libc_type=glibc
3574 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3575 # MinGW headers can be installed on Cygwin, so check for newlib first.
3576 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3577 eval ${pfx}libc_type=newlib
3578 add_${pfx}cppflags -U__STRICT_ANSI__
3579 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3580 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3581 eval ${pfx}libc_type=mingw64
3582 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3583 eval test \$${pfx_no_}cc_type = "gcc" &&
3584 add_${pfx}cppflags -D__printf__=__gnu_printf__
3585 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3586 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3587 eval ${pfx}libc_type=mingw32
3588 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3589 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3590 die "ERROR: MinGW32 runtime version must be >= 3.15."
3591 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3592 eval test \$${pfx_no_}cc_type = "gcc" &&
3593 add_${pfx}cppflags -D__printf__=__gnu_printf__
3594 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3595 eval ${pfx}libc_type=msvcrt
3596 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3597 # 0x601 by default unless something else is set by the user.
3598 # This can easily lead to us detecting functions only present
3599 # in such new versions and producing binaries requiring windows 7.0.
3600 # Therefore explicitly set the default to XP unless the user has
3601 # set something else on the command line.
3602 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3603 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3604 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3605 eval ${pfx}libc_type=klibc
3606 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3607 eval ${pfx}libc_type=bionic
3608 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3609 eval ${pfx}libc_type=solaris
3610 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3611 fi
3612 }
3613
3614 probe_libc
3615 test -n "$libc_type" && enable libc_$libc_type
3616 probe_libc host_
3617 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3618
3619 case $libc_type in
3620 bionic)
3621 add_compat strtod.o strtod=avpriv_strtod
3622 ;;
3623 msvcrt)
3624 add_compat strtod.o strtod=avpriv_strtod
3625 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3626 _snprintf=avpriv_snprintf \
3627 vsnprintf=avpriv_vsnprintf
3628 ;;
3629 esac
3630
3631 # hacks for compiler/libc/os combinations
3632
3633 if enabled_all tms470 libc_glibc; then
3634 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3635 add_cppflags -D__USER_LABEL_PREFIX__=
3636 add_cppflags -D__builtin_memset=memset
3637 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3638 add_cflags -pds=48 # incompatible redefinition of macro
3639 fi
3640
3641 if enabled_all ccc libc_glibc; then
3642 add_ldflags -Wl,-z,now # calls to libots crash without this
3643 fi
3644
3645 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3646 add_cppflags '-I\$(SRC_PATH)/compat/float'
3647
3648 esc(){
3649 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3650 }
3651
3652 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3653
3654 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3655
3656 set_default $PATHS_LIST
3657 set_default nm
3658
3659 # we need to build at least one lib type
3660 if ! enabled_any static shared; then
3661 cat <<EOF
3662 At least one library type must be built.
3663 Specify --enable-static to build the static libraries or --enable-shared to
3664 build the shared libraries as well. To only build the shared libraries specify
3665 --disable-static in addition to --enable-shared.
3666 EOF
3667 exit 1;
3668 fi
3669
3670 die_license_disabled() {
3671 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3672 }
3673
3674 die_license_disabled gpl libcdio
3675 die_license_disabled gpl libx264
3676 die_license_disabled gpl libx265
3677 die_license_disabled gpl libxavs
3678 die_license_disabled gpl libxvid
3679 die_license_disabled gpl x11grab
3680
3681 die_license_disabled nonfree libfaac
3682 die_license_disabled nonfree libfdk_aac
3683 die_license_disabled nonfree openssl
3684
3685 die_license_disabled version3 libopencore_amrnb
3686 die_license_disabled version3 libopencore_amrwb
3687 die_license_disabled version3 libvo_aacenc
3688 die_license_disabled version3 libvo_amrwbenc
3689
3690 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3691
3692 disabled optimizations || check_cflags -fomit-frame-pointer
3693
3694 enable_weak_pic() {
3695 disabled pic && return
3696 enable pic
3697 add_cppflags -DPIC
3698 case "$target_os" in
3699 mingw*|cygwin*)
3700 ;;
3701 *)
3702 add_cflags -fPIC
3703 ;;