matroska: Support interlaced content correctly
[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 --enable-rpath use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
134
135 Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
141
142 Individual component options:
143 --disable-everything disable all components listed below
144 --disable-encoder=NAME disable encoder NAME
145 --enable-encoder=NAME enable encoder NAME
146 --disable-encoders disable all encoders
147 --disable-decoder=NAME disable decoder NAME
148 --enable-decoder=NAME enable decoder NAME
149 --disable-decoders disable all decoders
150 --disable-hwaccel=NAME disable hwaccel NAME
151 --enable-hwaccel=NAME enable hwaccel NAME
152 --disable-hwaccels disable all hwaccels
153 --disable-muxer=NAME disable muxer NAME
154 --enable-muxer=NAME enable muxer NAME
155 --disable-muxers disable all muxers
156 --disable-demuxer=NAME disable demuxer NAME
157 --enable-demuxer=NAME enable demuxer NAME
158 --disable-demuxers disable all demuxers
159 --enable-parser=NAME enable parser NAME
160 --disable-parser=NAME disable parser NAME
161 --disable-parsers disable all parsers
162 --enable-bsf=NAME enable bitstream filter NAME
163 --disable-bsf=NAME disable bitstream filter NAME
164 --disable-bsfs disable all bitstream filters
165 --enable-protocol=NAME enable protocol NAME
166 --disable-protocol=NAME disable protocol NAME
167 --disable-protocols disable all protocols
168 --enable-indev=NAME enable input device NAME
169 --disable-indev=NAME disable input device NAME
170 --disable-indevs disable input devices
171 --enable-outdev=NAME enable output device NAME
172 --disable-outdev=NAME disable output device NAME
173 --disable-outdevs disable output devices
174 --disable-devices disable all devices
175 --enable-filter=NAME enable filter NAME
176 --disable-filter=NAME disable filter NAME
177 --disable-filters disable all filters
178
179 External library support:
180 --enable-avisynth enable reading of AviSynth script files [no]
181 --enable-bzlib enable bzlib [autodetect]
182 --enable-cuda enable dynamically linked CUDA [no]
183 --enable-frei0r enable frei0r video filtering
184 --enable-gnutls enable gnutls [no]
185 --enable-libbs2b enable bs2b DSP library [no]
186 --enable-libcdio enable audio CD grabbing with libcdio
187 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
188 and libraw1394 [no]
189 --enable-libdcadec enable DCA decoding via libdcadec [no]
190 --enable-libfaac enable AAC encoding via libfaac [no]
191 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
192 --enable-libfreetype enable libfreetype [no]
193 --enable-libgsm enable GSM de/encoding via libgsm [no]
194 --enable-libilbc enable iLBC de/encoding via libilbc [no]
195 --enable-libkvazaar enable HEVC encoding via libkvazaar [no]
196 --enable-libmfx enable HW acceleration through libmfx
197 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
198 --enable-libnpp enable NVIDIA Performance Primitives-based code [no]
199 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
200 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
201 --enable-libopencv enable video filtering via libopencv [no]
202 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
203 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
204 --enable-libopus enable Opus de/encoding via libopus [no]
205 --enable-libpulse enable Pulseaudio input via libpulse [no]
206 --enable-librtmp enable RTMP[E] support via librtmp [no]
207 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
208 --enable-libsnappy enable Snappy compression [no]
209 --enable-libspeex enable Speex de/encoding via libspeex [no]
210 --enable-libtheora enable Theora encoding via libtheora [no]
211 --enable-libtwolame enable MP2 encoding via libtwolame [no]
212 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
213 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
214 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
215 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
216 --enable-libwavpack enable wavpack encoding via libwavpack [no]
217 --enable-libwebp enable WebP encoding via libwebp [no]
218 --enable-libx264 enable H.264 encoding via x264 [no]
219 --enable-libx265 enable HEVC encoding via x265 [no]
220 --enable-libxavs enable AVS encoding via xavs [no]
221 --enable-libxcb enable X11 grabbing using XCB [no]
222 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
223 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
224 --enable-libxvid enable Xvid encoding via xvidcore,
225 native MPEG-4/Xvid encoder exists [no]
226 --enable-mmal enable decoding via MMAL [no]
227 --enable-nvenc enable encoding via NVENC [no]
228 --enable-openssl enable openssl [no]
229 --enable-x11grab enable X11 grabbing (legacy) [no]
230 --enable-zlib enable zlib [autodetect]
231
232 Toolchain options:
233 --arch=ARCH select architecture [$arch]
234 --cpu=CPU select the minimum required CPU (affects
235 instruction selection, may crash on older CPUs)
236 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
237 --enable-cross-compile assume a cross-compiler is used
238 --sysroot=PATH root of cross-build tree
239 --sysinclude=PATH location of cross-build system headers
240 --target-os=OS compiler targets OS [$target_os]
241 --target-exec=CMD command to run executables on target
242 --target-path=DIR path to view of build directory on target
243 --target-samples=DIR path to samples directory on target
244 --toolchain=NAME set tool defaults according to NAME
245 --nm=NM use nm tool
246 --ar=AR use archive tool AR [$ar_default]
247 --as=AS use assembler AS [$as_default]
248 --cc=CC use C compiler CC [$cc_default]
249 --objcc=OCC use ObjC compiler OCC [$cc_default]
250 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
251 --ld=LD use linker LD
252 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
253 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
254 --host-cc=HOSTCC use host C compiler HOSTCC
255 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
256 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
257 --host-ld=HOSTLD use host linker HOSTLD
258 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
259 --host-libs=HLIBS use libs HLIBS when linking for host
260 --host-os=OS compiler host OS [$target_os]
261 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
262 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
263 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
264 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
265 --extra-libs=ELIBS add ELIBS [$ELIBS]
266 --extra-version=STRING version string suffix []
267 --optflags=OPTFLAGS override optimization-related compiler flags
268 --build-suffix=SUFFIX library name suffix []
269 --enable-pic build position-independent code
270 --enable-thumb compile for Thumb instruction set
271 --enable-lto use link-time optimization
272 --env="ENV=override" override the environment variables
273
274 Advanced options (experts only):
275 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
276 --custom-allocator=NAME use a supported custom allocator
277 --disable-symver disable symbol versioning
278 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
279 --disable-safe-bitstream-reader
280 disable buffer boundary checking in bitreaders
281 (faster, but may crash)
282 --enable-memalign-hack emulate memalign, interferes with memory debuggers
283 --enable-sram allow use of on-chip SRAM
284
285 Optimization options (experts only):
286 --disable-asm disable all assembly optimizations
287 --disable-altivec disable AltiVec optimizations
288 --disable-vsx disable VSX optimizations
289 --disable-power8 disable POWER8 optimizations
290 --disable-amd3dnow disable 3DNow! optimizations
291 --disable-amd3dnowext disable 3DNow! extended optimizations
292 --disable-mmx disable MMX optimizations
293 --disable-mmxext disable MMXEXT optimizations
294 --disable-sse disable SSE optimizations
295 --disable-sse2 disable SSE2 optimizations
296 --disable-sse3 disable SSE3 optimizations
297 --disable-ssse3 disable SSSE3 optimizations
298 --disable-sse4 disable SSE4 optimizations
299 --disable-sse42 disable SSE4.2 optimizations
300 --disable-avx disable AVX optimizations
301 --disable-xop disable XOP optimizations
302 --disable-fma3 disable FMA3 optimizations
303 --disable-fma4 disable FMA4 optimizations
304 --disable-avx2 disable AVX2 optimizations
305 --disable-armv5te disable armv5te optimizations
306 --disable-armv6 disable armv6 optimizations
307 --disable-armv6t2 disable armv6t2 optimizations
308 --disable-vfp disable VFP optimizations
309 --disable-neon disable NEON optimizations
310 --disable-inline-asm disable use of inline assembly
311 --disable-yasm disable use of nasm/yasm assembly
312
313 Developer options (useful when working on Libav itself):
314 --disable-debug disable debugging symbols
315 --enable-debug=LEVEL set the debug level [$debuglevel]
316 --disable-optimizations disable compiler optimizations
317 --enable-extra-warnings enable more compiler warnings
318 --samples=PATH location of test samples for FATE, if not set use
319 \$LIBAV_SAMPLES at make invocation time.
320 --enable-neon-clobber-test check NEON registers for clobbering (should be
321 used only for debugging purposes)
322 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
323 should be used only for debugging purposes)
324 --enable-random randomly enable/disable components
325 --disable-random
326 --enable-random=LIST randomly enable/disable specific components or
327 --disable-random=LIST component groups. LIST is a comma-separated list
328 of NAME[:PROB] entries where NAME is a component
329 (group) and PROB the probability associated with
330 NAME (default 0.5).
331 --random-seed=VALUE seed value for --enable/disable-random
332 --disable-valgrind-backtrace do not print a backtrace under Valgrind
333 (only applies to --disable-optimizations builds)
334
335 NOTE: Object files are built at the place where configure is launched.
336 EOF
337 exit 0
338 }
339
340 quotes='""'
341
342 log(){
343 echo "$@" >> $logfile
344 }
345
346 log_file(){
347 log BEGIN $1
348 i=1
349 while read line; do
350 printf '%5s %s\n' "${i}" "${line}"
351 i=$(($i+1))
352 done < $1 >> $logfile
353 log END $1
354 }
355
356 echolog(){
357 log "$@"
358 echo "$@"
359 }
360
361 warn(){
362 log "WARNING: $*"
363 WARNINGS="${WARNINGS}WARNING: $*\n"
364 }
365
366 die(){
367 echolog "$@"
368 cat <<EOF
369
370 If you think configure made a mistake, make sure you are using the latest
371 version from Git. If the latest version fails, report the problem to the
372 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
373 EOF
374 if disabled logging; then
375 cat <<EOF
376 Rerun configure with logging enabled (do not use --disable-logging), and
377 include the log this produces with your report.
378 EOF
379 else
380 cat <<EOF
381 Include the log file "$logfile" produced by configure as this will help
382 solving the problem.
383 EOF
384 fi
385 exit 1
386 }
387
388 # Avoid locale weirdness, besides we really just want to translate ASCII.
389 toupper(){
390 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
391 }
392
393 tolower(){
394 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
395 }
396
397 c_escape(){
398 echo "$*" | sed 's/["\\]/\\\0/g'
399 }
400
401 sh_quote(){
402 v=$(echo "$1" | sed "s/'/'\\\\''/g")
403 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
404 echo "$v"
405 }
406
407 cleanws(){
408 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
409 }
410
411 filter(){
412 pat=$1
413 shift
414 for v; do
415 eval "case $v in $pat) echo $v ;; esac"
416 done
417 }
418
419 filter_out(){
420 pat=$1
421 shift
422 for v; do
423 eval "case $v in $pat) ;; *) echo $v ;; esac"
424 done
425 }
426
427 map(){
428 m=$1
429 shift
430 for v; do eval $m; done
431 }
432
433 add_suffix(){
434 suffix=$1
435 shift
436 for v; do echo ${v}${suffix}; done
437 }
438
439 set_all(){
440 value=$1
441 shift
442 for var in $*; do
443 eval $var=$value
444 done
445 }
446
447 set_weak(){
448 value=$1
449 shift
450 for var; do
451 eval : \${$var:=$value}
452 done
453 }
454
455 sanitize_var_name(){
456 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
457 }
458
459 set_safe(){
460 var=$1
461 shift
462 eval $(sanitize_var_name "$var")='$*'
463 }
464
465 get_safe(){
466 eval echo \$$(sanitize_var_name "$1")
467 }
468
469 pushvar(){
470 for pvar in $*; do
471 eval level=\${${pvar}_level:=0}
472 eval ${pvar}_${level}="\$$pvar"
473 eval ${pvar}_level=$(($level+1))
474 done
475 }
476
477 popvar(){
478 for pvar in $*; do
479 eval level=\${${pvar}_level:-0}
480 test $level = 0 && continue
481 eval level=$(($level-1))
482 eval $pvar="\${${pvar}_${level}}"
483 eval ${pvar}_level=$level
484 eval unset ${pvar}_${level}
485 done
486 }
487
488 enable(){
489 set_all yes $*
490 }
491
492 disable(){
493 set_all no $*
494 }
495
496 enable_weak(){
497 set_weak yes $*
498 }
499
500 disable_weak(){
501 set_weak no $*
502 }
503
504 enable_safe(){
505 for var; do
506 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
507 done
508 }
509
510 disable_safe(){
511 for var; do
512 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
513 done
514 }
515
516 do_enable_deep(){
517 for var; do
518 enabled $var && continue
519 eval sel="\$${var}_select"
520 eval sgs="\$${var}_suggest"
521 pushvar var sgs
522 enable_deep $sel
523 popvar sgs
524 enable_deep_weak $sgs
525 popvar var
526 done
527 }
528
529 enable_deep(){
530 do_enable_deep $*
531 enable $*
532 }
533
534 enable_deep_weak(){
535 for var; do
536 disabled $var && continue
537 pushvar var
538 do_enable_deep $var
539 popvar var
540 enable_weak $var
541 done
542 }
543
544 enabled(){
545 test "${1#!}" = "$1" && op== || op=!=
546 eval test "x\$${1#!}" $op "xyes"
547 }
548
549 disabled(){
550 test "${1#!}" = "$1" && op== || op=!=
551 eval test "x\$${1#!}" $op "xno"
552 }
553
554 enabled_all(){
555 for opt; do
556 enabled $opt || return 1
557 done
558 }
559
560 disabled_all(){
561 for opt; do
562 disabled $opt || return 1
563 done
564 }
565
566 enabled_any(){
567 for opt; do
568 enabled $opt && return 0
569 done
570 }
571
572 disabled_any(){
573 for opt; do
574 disabled $opt && return 0
575 done
576 return 1
577 }
578
579 set_default(){
580 for opt; do
581 eval : \${$opt:=\$${opt}_default}
582 done
583 }
584
585 is_in(){
586 value=$1
587 shift
588 for var in $*; do
589 [ $var = $value ] && return 0
590 done
591 return 1
592 }
593
594 do_check_deps(){
595 for cfg; do
596 cfg="${cfg#!}"
597 enabled ${cfg}_checking && die "Circular dependency for $cfg."
598 disabled ${cfg}_checking && continue
599 enable ${cfg}_checking
600 append allopts $cfg
601
602 eval dep_all="\$${cfg}_deps"
603 eval dep_any="\$${cfg}_deps_any"
604 eval dep_sel="\$${cfg}_select"
605 eval dep_sgs="\$${cfg}_suggest"
606 eval dep_ifa="\$${cfg}_if"
607 eval dep_ifn="\$${cfg}_if_any"
608
609 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
610 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
611 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
612
613 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
614 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
615 enabled_all $dep_all || disable $cfg
616 enabled_any $dep_any || disable $cfg
617 disabled_any $dep_sel && disable $cfg
618
619 if enabled $cfg; then
620 enable_deep $dep_sel
621 enable_deep_weak $dep_sgs
622 fi
623
624 disable ${cfg}_checking
625 done
626 }
627
628 check_deps(){
629 unset allopts
630
631 do_check_deps "$@"
632
633 for cfg in $allopts; do
634 enabled $cfg || continue
635 eval dep_extralibs="\$${cfg}_extralibs"
636 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
637 done
638 }
639
640 print_config(){
641 pfx=$1
642 files=$2
643 shift 2
644 map 'eval echo "$v \${$v:-no}"' "$@" |
645 awk "BEGIN { split(\"$files\", files) }
646 {
647 c = \"$pfx\" toupper(\$1);
648 v = \$2;
649 sub(/yes/, 1, v);
650 sub(/no/, 0, v);
651 for (f in files) {
652 file = files[f];
653 if (file ~ /\\.h\$/) {
654 printf(\"#define %s %d\\n\", c, v) >>file;
655 } else if (file ~ /\\.asm\$/) {
656 printf(\"%%define %s %d\\n\", c, v) >>file;
657 } else if (file ~ /\\.mak\$/) {
658 n = -v ? \"\" : \"!\";
659 printf(\"%s%s=yes\\n\", n, c) >>file;
660 }
661 }
662 }"
663 }
664
665 print_enabled(){
666 suf=$1
667 shift
668 for v; do
669 enabled $v && printf "%s\n" ${v%$suf};
670 done
671 }
672
673 append(){
674 var=$1
675 shift
676 eval "$var=\"\$$var $*\""
677 }
678
679 prepend(){
680 var=$1
681 shift
682 eval "$var=\"$* \$$var\""
683 }
684
685 unique(){
686 var=$1
687 uniq_list=""
688 for tok in $(eval echo \$$var); do
689 uniq_list="$(filter_out $tok $uniq_list) $tok"
690 done
691 eval "$var=\"${uniq_list}\""
692 }
693
694 add_cppflags(){
695 append CPPFLAGS "$@"
696 }
697
698 add_cflags(){
699 append CFLAGS $($cflags_filter "$@")
700 }
701
702 add_asflags(){
703 append ASFLAGS $($asflags_filter "$@")
704 }
705
706 add_objcflags(){
707 append OBJCFLAGS $($objcflags_filter "$@")
708 }
709
710 add_ldflags(){
711 append LDFLAGS $($ldflags_filter "$@")
712 }
713
714 add_ldexeflags(){
715 append LDEXEFLAGS $($ldflags_filter "$@")
716 }
717
718 add_stripflags(){
719 append STRIPFLAGS "$@"
720 }
721
722 add_extralibs(){
723 prepend extralibs $($ldflags_filter "$@")
724 }
725
726 add_host_cppflags(){
727 append host_cppflags "$@"
728 }
729
730 add_host_cflags(){
731 append host_cflags $($host_cflags_filter "$@")
732 }
733
734 add_host_ldflags(){
735 append host_ldflags $($host_ldflags_filter "$@")
736 }
737
738 add_compat(){
739 append compat_objs $1
740 shift
741 map 'add_cppflags -D$v' "$@"
742 }
743
744 check_cmd(){
745 log "$@"
746 "$@" >> $logfile 2>&1
747 }
748
749 cc_o(){
750 eval printf '%s\\n' $CC_O
751 }
752
753 cc_e(){
754 eval printf '%s\\n' $CC_E
755 }
756
757 check_cc(){
758 log check_cc "$@"
759 cat > $TMPC
760 log_file $TMPC
761 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
762 }
763
764 check_objcc(){
765 log check_objcc "$@"
766 cat > $TMPC
767 log_file $TMPC
768 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
769 }
770
771 check_cpp(){
772 log check_cpp "$@"
773 cat > $TMPC
774 log_file $TMPC
775 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
776 }
777
778 as_o(){
779 eval printf '%s\\n' $AS_O
780 }
781
782 check_as(){
783 log check_as "$@"
784 cat > $TMPS
785 log_file $TMPS
786 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
787 }
788
789 check_inline_asm(){
790 log check_inline_asm "$@"
791 name="$1"
792 code="$2"
793 shift 2
794 disable $name
795 check_cc "$@" <<EOF && enable $name
796 void foo(void){ __asm__ volatile($code); }
797 EOF
798 }
799
800 check_insn(){
801 log check_insn "$@"
802 check_inline_asm ${1}_inline "\"$2\""
803 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
804 }
805
806 check_yasm(){
807 log check_yasm "$@"
808 echo "$1" > $TMPS
809 log_file $TMPS
810 shift 1
811 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
812 }
813
814 ld_o(){
815 eval printf '%s\\n' $LD_O
816 }
817
818 check_ld(){
819 log check_ld "$@"
820 flags=$(filter_out '-l*' "$@")
821 libs=$(filter '-l*' "$@")
822 check_cc $($cflags_filter $flags) || return
823 flags=$($ldflags_filter $flags)
824 libs=$($ldflags_filter $libs)
825 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
826 }
827
828 print_include(){
829 hdr=$1
830 test "${hdr%.h}" = "${hdr}" &&
831 echo "#include $hdr" ||
832 echo "#include <$hdr>"
833 }
834
835 check_code(){
836 log check_code "$@"
837 check=$1
838 headers=$2
839 code=$3
840 shift 3
841 {
842 for hdr in $headers; do
843 print_include $hdr
844 done
845 echo "int main(void) { $code; return 0; }"
846 } | check_$check "$@"
847 }
848
849 check_cppflags(){
850 log check_cppflags "$@"
851 check_cc "$@" <<EOF && append CPPFLAGS "$@"
852 int x;
853 EOF
854 }
855
856 test_cflags(){
857 log test_cflags "$@"
858 set -- $($cflags_filter "$@")
859 check_cc "$@" <<EOF
860 int x;
861 EOF
862 }
863
864 check_cflags(){
865 log check_cflags "$@"
866 test_cflags "$@" && add_cflags "$@"
867 }
868
869 test_objcflags(){
870 log test_cflags "$@"
871 set -- $($cflags_filter "$@")
872 check_objcc "$@" <<EOF
873 int x;
874 EOF
875 }
876
877 check_objcflags(){
878 log check_cflags "$@"
879 test_objcflags "$@" && add_objcflags "$@"
880 }
881
882 test_ldflags(){
883 log test_ldflags "$@"
884 check_ld "$@" <<EOF
885 int main(void){ return 0; }
886 EOF
887 }
888
889 check_ldflags(){
890 log check_ldflags "$@"
891 test_ldflags "$@" && add_ldflags "$@"
892 }
893
894 test_stripflags(){
895 log test_stripflags "$@"
896 # call check_cc to get a fresh TMPO
897 check_cc <<EOF
898 int main(void) { return 0; }
899 EOF
900 check_cmd $strip $STRIPFLAGS "$@" $TMPO
901 }
902
903 check_stripflags(){
904 log check_stripflags "$@"
905 test_stripflags "$@" && add_stripflags "$@"
906 }
907
908 check_header(){
909 log check_header "$@"
910 header=$1
911 shift
912 disable_safe $header
913 check_cpp "$@" <<EOF && enable_safe $header
914 #include <$header>
915 int x;
916 EOF
917 }
918
919 check_func(){
920 log check_func "$@"
921 func=$1
922 shift
923 disable $func
924 check_ld "$@" <<EOF && enable $func
925 extern int $func();
926 int main(void){ $func(); }
927 EOF
928 }
929
930 check_mathfunc(){
931 log check_mathfunc "$@"
932 func=$1
933 narg=$2
934 shift 2
935 test $narg = 2 && args="f, g" || args="f"
936 disable $func
937 check_ld "$@" <<EOF && enable $func
938 #include <math.h>
939 float foo(float f, float g) { return $func($args); }
940 int main(void){ return 0; }
941 EOF
942 }
943
944 check_func_headers(){
945 log check_func_headers "$@"
946 headers=$1
947 funcs=$2
948 shift 2
949 {
950 for hdr in $headers; do
951 print_include $hdr
952 done
953 for func in $funcs; do
954 echo "long check_$func(void) { return (long) $func; }"
955 done
956 echo "int main(void) { return 0; }"
957 } | check_ld "$@" && enable $funcs && enable_safe $headers
958 }
959
960 check_cpp_condition(){
961 log check_cpp_condition "$@"
962 header=$1
963 condition=$2
964 shift 2
965 check_cpp "$@" <<EOF
966 #include <$header>
967 #if !($condition)
968 #error "unsatisfied condition: $condition"
969 #endif
970 EOF
971 }
972
973 check_lib(){
974 log check_lib "$@"
975 header="$1"
976 func="$2"
977 shift 2
978 check_header $header && check_func $func "$@" && add_extralibs "$@"
979 }
980
981 check_lib2(){
982 log check_lib2 "$@"
983 headers="$1"
984 funcs="$2"
985 shift 2
986 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
987 }
988
989 check_pkg_config(){
990 log check_pkg_config "$@"
991 pkg="$1"
992 headers="$2"
993 funcs="$3"
994 shift 3
995 check_cmd $pkg_config --exists --print-errors $pkg || return
996 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
997 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
998 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
999 set_safe "${pkg}_cflags" $pkg_cflags &&
1000 set_safe "${pkg}_libs" $pkg_libs
1001 }
1002
1003 check_exec(){
1004 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1005 }
1006
1007 check_exec_crash(){
1008 code=$(cat)
1009
1010 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1011 # are safe but may not be available everywhere. Thus we use
1012 # raise(SIGTERM) instead. The check is run in a subshell so we
1013 # can redirect the "Terminated" message from the shell. SIGBUS
1014 # is not defined by standard C so it is used conditionally.
1015
1016 (check_exec "$@") >> $logfile 2>&1 <<EOF
1017 #include <signal.h>
1018 static void sighandler(int sig){
1019 raise(SIGTERM);
1020 }
1021 int foo(void){
1022 $code
1023 }
1024 int (*func_ptr)(void) = foo;
1025 int main(void){
1026 signal(SIGILL, sighandler);
1027 signal(SIGFPE, sighandler);
1028 signal(SIGSEGV, sighandler);
1029 #ifdef SIGBUS
1030 signal(SIGBUS, sighandler);
1031 #endif
1032 return func_ptr();
1033 }
1034 EOF
1035 }
1036
1037 check_type(){
1038 log check_type "$@"
1039 headers=$1
1040 type=$2
1041 shift 2
1042 disable_safe "$type"
1043 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1044 }
1045
1046 check_struct(){
1047 log check_struct "$@"
1048 headers=$1
1049 struct=$2
1050 member=$3
1051 shift 3
1052 disable_safe "${struct}_${member}"
1053 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1054 enable_safe "${struct}_${member}"
1055 }
1056
1057 check_builtin(){
1058 log check_builtin "$@"
1059 name=$1
1060 headers=$2
1061 builtin=$3
1062 shift 3
1063 disable "$name"
1064 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1065 }
1066
1067 check_compile_assert(){
1068 log check_compile_assert "$@"
1069 name=$1
1070 headers=$2
1071 condition=$3
1072 shift 3
1073 disable "$name"
1074 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1075 }
1076
1077 require(){
1078 name="$1"
1079 header="$2"
1080 func="$3"
1081 shift 3
1082 check_lib $header $func "$@" || die "ERROR: $name not found"
1083 }
1084
1085 require2(){
1086 name="$1"
1087 headers="$2"
1088 func="$3"
1089 shift 3
1090 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1091 }
1092
1093 require_pkg_config(){
1094 pkg="$1"
1095 check_pkg_config "$@" || die "ERROR: $pkg not found"
1096 add_cflags $(get_safe "${pkg}_cflags")
1097 add_extralibs $(get_safe "${pkg}_libs")
1098 }
1099
1100 hostcc_e(){
1101 eval printf '%s\\n' $HOSTCC_E
1102 }
1103
1104 hostcc_o(){
1105 eval printf '%s\\n' $HOSTCC_O
1106 }
1107
1108 check_host_cc(){
1109 log check_host_cc "$@"
1110 cat > $TMPC
1111 log_file $TMPC
1112 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1113 }
1114
1115 check_host_cpp(){
1116 log check_host_cpp "$@"
1117 cat > $TMPC
1118 log_file $TMPC
1119 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1120 }
1121
1122 check_host_cppflags(){
1123 log check_host_cppflags "$@"
1124 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1125 int x;
1126 EOF
1127 }
1128
1129 check_host_cflags(){
1130 log check_host_cflags "$@"
1131 set -- $($host_cflags_filter "$@")
1132 check_host_cc "$@" <<EOF && append host_cflags "$@"
1133 int x;
1134 EOF
1135 }
1136
1137 check_host_cpp_condition(){
1138 log check_host_cpp_condition "$@"
1139 header=$1
1140 condition=$2
1141 shift 2
1142 check_host_cpp "$@" <<EOF
1143 #include <$header>
1144 #if !($condition)
1145 #error "unsatisfied condition: $condition"
1146 #endif
1147 EOF
1148 }
1149
1150 apply(){
1151 file=$1
1152 shift
1153 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1154 }
1155
1156 cp_if_changed(){
1157 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1158 mkdir -p "$(dirname $2)"
1159 $cp_f "$1" "$2"
1160 }
1161
1162 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1163 # system-dependent things.
1164
1165 AVCODEC_COMPONENTS="
1166 bsfs
1167 decoders
1168 encoders
1169 hwaccels
1170 parsers
1171 "
1172
1173 AVDEVICE_COMPONENTS="
1174 indevs
1175 outdevs
1176 "
1177 AVFILTER_COMPONENTS="
1178 filters
1179 "
1180 AVFORMAT_COMPONENTS="
1181 demuxers
1182 muxers
1183 protocols
1184 "
1185
1186 AVRESAMPLE_COMPONENTS=""
1187 AVUTIL_COMPONENTS=""
1188
1189 COMPONENT_LIST="
1190 $AVCODEC_COMPONENTS
1191 $AVDEVICE_COMPONENTS
1192 $AVFILTER_COMPONENTS
1193 $AVFORMAT_COMPONENTS
1194 $AVRESAMPLE_COMPONENTS
1195 $AVUTIL_COMPONENTS
1196 "
1197
1198 EXAMPLE_LIST="
1199 avcodec_example
1200 filter_audio_example
1201 metadata_example
1202 output_example
1203 qsvdec_example
1204 transcode_aac_example
1205 "
1206
1207 EXTERNAL_LIBRARY_LIST="
1208 avisynth
1209 bzlib
1210 cuda
1211 frei0r
1212 gnutls
1213 libbs2b
1214 libcdio
1215 libdc1394
1216 libdcadec
1217 libfaac
1218 libfdk_aac
1219 libfontconfig
1220 libfreetype
1221 libgsm
1222 libilbc
1223 libkvazaar
1224 libmfx
1225 libmp3lame
1226 libnpp
1227 libopencore_amrnb
1228 libopencore_amrwb
1229 libopencv
1230 libopenh264
1231 libopenjpeg
1232 libopus
1233 libpulse
1234 librtmp
1235 libschroedinger
1236 libsnappy
1237 libspeex
1238 libtheora
1239 libtwolame
1240 libvo_aacenc
1241 libvo_amrwbenc
1242 libvorbis
1243 libvpx
1244 libwavpack
1245 libwebp
1246 libx264
1247 libx265
1248 libxavs
1249 libxcb
1250 libxcb_shm
1251 libxcb_xfixes
1252 libxvid
1253 mmal
1254 nvenc
1255 openssl
1256 x11grab
1257 zlib
1258 "
1259
1260 FEATURE_LIST="
1261 gray
1262 hardcoded_tables
1263 runtime_cpudetect
1264 safe_bitstream_reader
1265 shared
1266 small
1267 sram
1268 static
1269 swscale_alpha
1270 "
1271
1272 HWACCEL_LIST="
1273 d3d11va
1274 dxva2
1275 vaapi
1276 vda
1277 vdpau
1278 "
1279
1280 LIBRARY_LIST="
1281 avcodec
1282 avdevice
1283 avfilter
1284 avformat
1285 avresample
1286 avutil
1287 swscale
1288 "
1289
1290 LICENSE_LIST="
1291 gpl
1292 nonfree
1293 version3
1294 "
1295
1296 PROGRAM_LIST="
1297 avconv
1298 avplay
1299 avprobe
1300 "
1301
1302 SUBSYSTEM_LIST="
1303 dct
1304 doc
1305 error_resilience
1306 faan
1307 fft
1308 lsp
1309 lzo
1310 mdct
1311 network
1312 rdft
1313 "
1314
1315 CONFIG_LIST="
1316 $COMPONENT_LIST
1317 $EXAMPLE_LIST
1318 $EXTERNAL_LIBRARY_LIST
1319 $FEATURE_LIST
1320 $HWACCEL_LIST
1321 $LICENSE_LIST
1322 $LIBRARY_LIST
1323 $PROGRAM_LIST
1324 $SUBSYSTEM_LIST
1325 memalign_hack
1326 neon_clobber_test
1327 pic
1328 pod2man
1329 texi2html
1330 thumb
1331 valgrind_backtrace
1332 xmm_clobber_test
1333 "
1334
1335 THREADS_LIST="
1336 pthreads
1337 w32threads
1338 "
1339
1340 ATOMICS_LIST="
1341 atomics_gcc
1342 atomics_suncc
1343 atomics_win32
1344 "
1345
1346 ARCH_LIST="
1347 aarch64
1348 alpha
1349 arm
1350 avr32
1351 avr32_ap
1352 avr32_uc
1353 bfin
1354 ia64
1355 m68k
1356 mips
1357 mips64
1358 parisc
1359 ppc
1360 ppc64
1361 s390
1362 sh4
1363 sparc
1364 sparc64
1365 tilegx
1366 tilepro
1367 tomi
1368 x86
1369 x86_32
1370 x86_64
1371 "
1372
1373 ARCH_EXT_LIST_ARM="
1374 armv5te
1375 armv6
1376 armv6t2
1377 armv8
1378 neon
1379 vfp
1380 vfpv3
1381 "
1382
1383 ARCH_EXT_LIST_X86_SIMD="
1384 amd3dnow
1385 amd3dnowext
1386 avx
1387 avx2
1388 fma3
1389 fma4
1390 mmx
1391 mmxext
1392 sse
1393 sse2
1394 sse3
1395 sse4
1396 sse42
1397 ssse3
1398 xop
1399 "
1400
1401 ARCH_EXT_LIST_PPC="
1402 altivec
1403 dcbzl
1404 ldbrx
1405 power8
1406 ppc4xx
1407 vsx
1408 "
1409
1410 ARCH_EXT_LIST_X86="
1411 $ARCH_EXT_LIST_X86_SIMD
1412 cpunop
1413 i686
1414 "
1415
1416 ARCH_EXT_LIST_MIPS="
1417 loongson
1418 mips32r1
1419 mips64r1
1420 mips32r2
1421 mips64r2
1422 mips32r6
1423 mips64r6
1424 "
1425
1426 ARCH_EXT_LIST="
1427 $ARCH_EXT_LIST_ARM
1428 $ARCH_EXT_LIST_MIPS
1429 $ARCH_EXT_LIST_PPC
1430 $ARCH_EXT_LIST_X86
1431 vis
1432 "
1433
1434 ARCH_FEATURES="
1435 aligned_stack
1436 fast_64bit
1437 fast_clz
1438 fast_cmov
1439 local_aligned_8
1440 local_aligned_16
1441 simd_align_16
1442 "
1443
1444 BUILTIN_LIST="
1445 atomic_cas_ptr
1446 machine_rw_barrier
1447 MemoryBarrier
1448 mm_empty
1449 rdtsc
1450 sync_val_compare_and_swap
1451 "
1452 HAVE_LIST_CMDLINE="
1453 inline_asm
1454 symver
1455 yasm
1456 "
1457
1458 HAVE_LIST_PUB="
1459 bigendian
1460 fast_unaligned
1461 "
1462
1463 HEADERS_LIST="
1464 AVFoundation_AVFoundation_h
1465 alsa_asoundlib_h
1466 altivec_h
1467 arpa_inet_h
1468 cdio_paranoia_h
1469 cdio_paranoia_paranoia_h
1470 dev_bktr_ioctl_bt848_h
1471 dev_bktr_ioctl_meteor_h
1472 dev_ic_bt8xx_h
1473 dev_video_bktr_ioctl_bt848_h
1474 dev_video_meteor_ioctl_meteor_h
1475 direct_h
1476 dlfcn_h
1477 d3d11_h
1478 dxva_h
1479 gsm_h
1480 io_h
1481 mach_mach_time_h
1482 machine_ioctl_bt848_h
1483 machine_ioctl_meteor_h
1484 malloc_h
1485 poll_h
1486 sndio_h
1487 soundcard_h
1488 sys_mman_h
1489 sys_param_h
1490 sys_resource_h
1491 sys_select_h
1492 sys_soundcard_h
1493 sys_time_h
1494 sys_un_h
1495 sys_videoio_h
1496 unistd_h
1497 valgrind_valgrind_h
1498 windows_h
1499 winsock2_h
1500 "
1501
1502 INTRINSICS_LIST="
1503 intrinsics_neon
1504 "
1505
1506 MATH_FUNCS="
1507 atanf
1508 atan2f
1509 cbrtf
1510 cosf
1511 exp2
1512 exp2f
1513 expf
1514 isinf
1515 isnan
1516 ldexpf
1517 llrint
1518 llrintf
1519 log2
1520 log2f
1521 log10f
1522 lrint
1523 lrintf
1524 powf
1525 rint
1526 round
1527 roundf
1528 sinf
1529 trunc
1530 truncf
1531 "
1532
1533 SYSTEM_FUNCS="
1534 aligned_malloc
1535 clock_gettime
1536 closesocket
1537 CommandLineToArgvW
1538 CoTaskMemFree
1539 CryptGenRandom
1540 dlopen
1541 fcntl
1542 flt_lim
1543 fork
1544 getaddrinfo
1545 gethrtime
1546 getopt
1547 GetProcessAffinityMask
1548 GetProcessMemoryInfo
1549 GetProcessTimes
1550 getrusage
1551 GetSystemTimeAsFileTime
1552 gettimeofday
1553 gmtime_r
1554 inet_aton
1555 isatty
1556 jack_port_get_latency_range
1557 LoadLibrary
1558 localtime_r
1559 mach_absolute_time
1560 MapViewOfFile
1561 memalign
1562 mkstemp
1563 mmap
1564 mprotect
1565 nanosleep
1566 posix_memalign
1567 sched_getaffinity
1568 SetConsoleTextAttribute
1569 setmode
1570 setrlimit
1571 Sleep
1572 strerror_r
1573 sysconf
1574 sysctl
1575 usleep
1576 VirtualAlloc
1577 "
1578
1579 TOOLCHAIN_FEATURES="
1580 as_dn_directive
1581 as_func
1582 as_object_arch
1583 asm_mod_q
1584 attribute_may_alias
1585 attribute_packed
1586 ebp_available
1587 ebx_available
1588 gnu_as
1589 ibm_asm
1590 inline_asm_labels
1591 pragma_deprecated
1592 symver_asm_label
1593 symver_gnu_asm
1594 vfp_args
1595 xform_asm
1596 xmm_clobbers
1597 "
1598
1599 TYPES_LIST="
1600 CONDITION_VARIABLE_Ptr
1601 socklen_t
1602 struct_addrinfo
1603 struct_group_source_req
1604 struct_ip_mreq_source
1605 struct_ipv6_mreq
1606 struct_pollfd
1607 struct_rusage_ru_maxrss
1608 struct_sockaddr_in6
1609 struct_sockaddr_sa_len
1610 struct_sockaddr_storage
1611 struct_v4l2_frmivalenum_discrete
1612 "
1613
1614 HAVE_LIST="
1615 $ARCH_EXT_LIST
1616 $(add_suffix _external $ARCH_EXT_LIST)
1617 $(add_suffix _inline $ARCH_EXT_LIST)
1618 $ARCH_FEATURES
1619 $ATOMICS_LIST
1620 $BUILTIN_LIST
1621 $HAVE_LIST_CMDLINE
1622 $HAVE_LIST_PUB
1623 $HEADERS_LIST
1624 $INTRINSICS_LIST
1625 $MATH_FUNCS
1626 $SYSTEM_FUNCS
1627 $THREADS_LIST
1628 $TOOLCHAIN_FEATURES
1629 $TYPES_LIST
1630 atomics_native
1631 dos_paths
1632 dxva2_lib
1633 libc_msvcrt
1634 libdc1394_1
1635 libdc1394_2
1636 sdl
1637 section_data_rel_ro
1638 threads
1639 vaapi_drm
1640 vaapi_x11
1641 vdpau_x11
1642 xlib
1643 "
1644
1645 # options emitted with CONFIG_ prefix but not available on the command line
1646 CONFIG_EXTRA="
1647 aandcttables
1648 ac3dsp
1649 audio_frame_queue
1650 audiodsp
1651 blockdsp
1652 bswapdsp
1653 cabac
1654 dirac_parse
1655 dvprofile
1656 faandct
1657 faanidct
1658 fdctdsp
1659 flacdsp
1660 fmtconvert
1661 g722dsp
1662 gcrypt
1663 gmp
1664 golomb
1665 gplv3
1666 h263dsp
1667 h264chroma
1668 h264dsp
1669 h264pred
1670 h264qpel
1671 hpeldsp
1672 huffman
1673 huffyuvdsp
1674 huffyuvencdsp
1675 idctdsp
1676 iirfilter
1677 imdct15
1678 intrax8
1679 iso_media
1680 ividsp
1681 jpegtables
1682 libx262
1683 lgplv3
1684 lpc
1685 lzf
1686 me_cmp
1687 mpeg_er
1688 mpegaudio
1689 mpegaudiodsp
1690 mpegvideo
1691 mpegvideoenc
1692 mss34dsp
1693 pixblockdsp
1694 qpeldsp
1695 qsv
1696 qsvdec
1697 qsvenc
1698 rangecoder
1699 riffdec
1700 riffenc
1701 rtpdec
1702 rtpenc_chain
1703 rv34dsp
1704 sinewin
1705 snappy
1706 srtp
1707 startcode
1708 texturedsp
1709 texturedspenc
1710 tpeldsp
1711 vaapi_encode
1712 vc1dsp
1713 videodsp
1714 vp3dsp
1715 vp56dsp
1716 vp8dsp
1717 wma_freqs
1718 wmv2dsp
1719 "
1720
1721 CMDLINE_SELECT="
1722 $ARCH_EXT_LIST
1723 $CONFIG_LIST
1724 $HAVE_LIST_CMDLINE
1725 $THREADS_LIST
1726 asm
1727 cross_compile
1728 debug
1729 extra_warnings
1730 logging
1731 lto
1732 optimizations
1733 rpath
1734 "
1735
1736 PATHS_LIST="
1737 bindir
1738 datadir
1739 docdir
1740 incdir
1741 libdir
1742 mandir
1743 prefix
1744 shlibdir
1745 "
1746
1747 CMDLINE_SET="
1748 $PATHS_LIST
1749 ar
1750 arch
1751 as
1752 build_suffix
1753 cc
1754 objcc
1755 cpu
1756 cross_prefix
1757 custom_allocator
1758 dep_cc
1759 env
1760 extra_version
1761 host_cc
1762 host_cflags
1763 host_ld
1764 host_ldflags
1765 host_libs
1766 host_os
1767 ld
1768 logfile
1769 malloc_prefix
1770 nm
1771 optflags
1772 pkg_config
1773 pkg_config_flags
1774 random_seed
1775 samples
1776 sysinclude
1777 sysroot
1778 target_exec
1779 target_os
1780 target_path
1781 target_samples
1782 toolchain
1783 "
1784
1785 CMDLINE_APPEND="
1786 extra_cflags
1787 extra_objcflags
1788 host_cppflags
1789 "
1790
1791 # code dependency declarations
1792
1793 # architecture extensions
1794
1795 armv5te_deps="arm"
1796 armv6_deps="arm"
1797 armv6t2_deps="arm"
1798 armv8_deps="aarch64"
1799 neon_deps_any="aarch64 arm"
1800 intrinsics_neon_deps="neon"
1801 vfp_deps_any="aarch64 arm"
1802 vfpv3_deps="vfp"
1803
1804 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1805
1806 altivec_deps="ppc"
1807 ppc4xx_deps="ppc"
1808 vsx_deps="altivec"
1809 power8_deps="vsx"
1810
1811 cpunop_deps="i686"
1812 x86_64_select="i686"
1813 x86_64_suggest="fast_cmov"
1814
1815 amd3dnow_deps="mmx"
1816 amd3dnowext_deps="amd3dnow"
1817 i686_deps="x86"
1818 mmx_deps="x86"
1819 mmxext_deps="mmx"
1820 sse_deps="mmxext"
1821 sse2_deps="sse"
1822 sse3_deps="sse2"
1823 ssse3_deps="sse3"
1824 sse4_deps="ssse3"
1825 sse42_deps="sse4"
1826 avx_deps="sse42"
1827 xop_deps="avx"
1828 fma3_deps="avx"
1829 fma4_deps="avx"
1830 avx2_deps="avx"
1831
1832 mmx_external_deps="yasm"
1833 mmx_inline_deps="inline_asm"
1834 mmx_suggest="mmx_external mmx_inline"
1835
1836 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1837 eval dep=\$${ext}_deps
1838 eval ${ext}_external_deps='"${dep}_external"'
1839 eval ${ext}_inline_deps='"${dep}_inline"'
1840 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1841 done
1842
1843 aligned_stack_if_any="aarch64 ppc x86"
1844 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1845 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1846 fast_unaligned_if_any="aarch64 ppc x86"
1847 simd_align_16_if_any="altivec neon sse"
1848
1849 # system capabilities
1850 symver_if_any="symver_asm_label symver_gnu_asm"
1851 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1852
1853 # threading support
1854 atomics_gcc_if="sync_val_compare_and_swap"
1855 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1856 atomics_win32_if="MemoryBarrier"
1857 atomics_native_if_any="$ATOMICS_LIST"
1858 w32threads_deps="atomics_native"
1859 threads_if_any="$THREADS_LIST"
1860
1861 # subsystems
1862 dct_select="rdft"
1863 dirac_parse_select="golomb"
1864 error_resilience_select="me_cmp"
1865 faandct_deps="faan fdctdsp"
1866 faanidct_deps="faan idctdsp"
1867 h264dsp_select="startcode"
1868 intrax8_select="blockdsp idctdsp"
1869 mdct_select="fft"
1870 rdft_select="fft"
1871 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1872 mpeg_er_select="error_resilience"
1873 mpegaudio_select="mpegaudiodsp"
1874 mpegaudiodsp_select="dct"
1875 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1876 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1877 nvenc_deps_any="dlopen LoadLibrary"
1878 nvenc_extralibs='$ldl'
1879 qsvdec_select="qsv"
1880 qsvenc_select="qsv"
1881 vaapi_encode_deps="vaapi"
1882 vc1dsp_select="h264chroma qpeldsp startcode"
1883
1884 # decoders / encoders
1885 aac_decoder_select="imdct15 mdct sinewin"
1886 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1887 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1888 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1889 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1890 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1891 adpcm_g722_decoder_select="g722dsp"
1892 adpcm_g722_encoder_select="g722dsp"
1893 aic_decoder_select="golomb idctdsp"
1894 alac_encoder_select="lpc"
1895 als_decoder_select="bswapdsp"
1896 amrnb_decoder_select="lsp"
1897 amrwb_decoder_select="lsp"
1898 amv_decoder_select="sp5x_decoder"
1899 ape_decoder_select="bswapdsp"
1900 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1901 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1902 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1903 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1904 atrac1_decoder_select="mdct sinewin"
1905 atrac3_decoder_select="mdct"
1906 atrac3p_decoder_select="mdct sinewin"
1907 bink_decoder_select="blockdsp hpeldsp"
1908 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1909 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1910 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1911 cllc_decoder_select="bswapdsp"
1912 comfortnoise_encoder_select="lpc"
1913 cook_decoder_select="audiodsp mdct sinewin"
1914 cscd_decoder_select="lzo"
1915 cscd_decoder_suggest="zlib"
1916 dca_decoder_select="fmtconvert mdct"
1917 dds_decoder_select="texturedsp"
1918 dnxhd_decoder_select="blockdsp idctdsp"
1919 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1920 dvvideo_decoder_select="dvprofile idctdsp"
1921 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1922 dxa_decoder_deps="zlib"
1923 dxv_decoder_select="lzf texturedsp"
1924 eac3_decoder_select="ac3_decoder"
1925 eac3_encoder_select="ac3_encoder"
1926 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1927 eatgq_decoder_select="aandcttables idctdsp"
1928 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1929 exr_decoder_deps="zlib"
1930 ffv1_decoder_select="golomb rangecoder"
1931 ffv1_encoder_select="rangecoder"
1932 ffvhuff_decoder_select="huffyuv_decoder"
1933 ffvhuff_encoder_select="huffyuv_encoder"
1934 fic_decoder_select="golomb"
1935 flac_decoder_select="flacdsp golomb"
1936 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1937 flashsv_decoder_deps="zlib"
1938 flashsv_encoder_deps="zlib"
1939 flashsv2_decoder_deps="zlib"
1940 flv_decoder_select="h263_decoder"
1941 flv_encoder_select="h263_encoder"
1942 fourxm_decoder_select="blockdsp bswapdsp"
1943 fraps_decoder_select="bswapdsp huffman"
1944 g2m_decoder_deps="zlib"
1945 g2m_decoder_select="blockdsp idctdsp jpegtables"
1946 h261_decoder_select="mpeg_er mpegvideo"
1947 h261_encoder_select="aandcttables mpegvideoenc"
1948 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1949 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1950 h263i_decoder_select="h263_decoder"
1951 h263p_encoder_select="h263_encoder"
1952 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1953 h264_decoder_suggest="error_resilience"
1954 h264_nvenc_encoder_deps="nvenc"
1955 h264_qsv_decoder_deps="libmfx"
1956 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1957 h264_qsv_encoder_deps="libmfx"
1958 h264_qsv_encoder_select="qsvenc"
1959 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
1960 h264_vaapi_encoder_select="vaapi_encode golomb"
1961 hap_decoder_select="snappy texturedsp"
1962 hap_encoder_deps="libsnappy"
1963 hap_encoder_select="texturedspenc"
1964 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1965 hevc_nvenc_encoder_deps="nvenc"
1966 hevc_qsv_encoder_deps="libmfx"
1967 hevc_qsv_decoder_deps="libmfx"
1968 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1969 hevc_qsv_encoder_select="qsvenc"
1970 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
1971 hevc_vaapi_encoder_select="vaapi_encode golomb"
1972 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1973 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1974 iac_decoder_select="imc_decoder"
1975 imc_decoder_select="bswapdsp fft mdct sinewin"
1976 indeo3_decoder_select="hpeldsp"
1977 indeo4_decoder_select="ividsp"
1978 indeo5_decoder_select="ividsp"
1979 interplay_video_decoder_select="hpeldsp"
1980 jpegls_decoder_select="golomb mjpeg_decoder"
1981 jpegls_encoder_select="golomb"
1982 jv_decoder_select="blockdsp"
1983 lagarith_decoder_select="huffyuvdsp"
1984 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1985 loco_decoder_select="golomb"
1986 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1987 metasound_decoder_select="lsp mdct sinewin"
1988 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1989 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1990 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1991 mjpegb_decoder_select="mjpeg_decoder"
1992 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
1993 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
1994 mlp_decoder_select="mlp_parser"
1995 motionpixels_decoder_select="bswapdsp"
1996 mp1_decoder_select="mpegaudio"
1997 mp1float_decoder_select="mpegaudio"
1998 mp2_decoder_select="mpegaudio"
1999 mp2float_decoder_select="mpegaudio"
2000 mp3_decoder_select="mpegaudio"
2001 mp3adu_decoder_select="mpegaudio"
2002 mp3adufloat_decoder_select="mpegaudio"
2003 mp3float_decoder_select="mpegaudio"
2004 mp3on4_decoder_select="mpegaudio"
2005 mp3on4float_decoder_select="mpegaudio"
2006 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2007 mpc8_decoder_select="mpegaudiodsp"
2008 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2009 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2010 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2011 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2012 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2013 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2014 mpeg2_qsv_decoder_deps="libmfx"
2015 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2016 mpeg2_qsv_encoder_deps="libmfx"
2017 mpeg2_qsv_encoder_select="qsvenc"
2018 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2019 mpeg4_encoder_select="h263_encoder"
2020 msa1_decoder_select="mss34dsp"
2021 msmpeg4v1_decoder_select="h263_decoder"
2022 msmpeg4v2_decoder_select="h263_decoder"
2023 msmpeg4v2_encoder_select="h263_encoder"
2024 msmpeg4v3_decoder_select="h263_decoder"
2025 msmpeg4v3_encoder_select="h263_encoder"
2026 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2027 mts2_decoder_select="mss34dsp"
2028 mxpeg_decoder_select="mjpeg_decoder"
2029 nellymoser_decoder_select="mdct sinewin"
2030 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2031 nuv_decoder_select="idctdsp lzo"
2032 nvenc_h264_encoder_deps="nvenc"
2033 nvenc_hevc_encoder_deps="nvenc"
2034 on2avc_decoder_select="mdct"
2035 opus_decoder_deps="avresample"
2036 opus_decoder_select="imdct15"
2037 png_decoder_deps="zlib"
2038 png_encoder_deps="zlib"
2039 png_encoder_select="huffyuvencdsp"
2040 prores_decoder_select="idctdsp"
2041 prores_encoder_select="fdctdsp"
2042 qcelp_decoder_select="lsp"
2043 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2044 ra_144_encoder_select="audio_frame_queue lpc"
2045 ralf_decoder_select="golomb"
2046 rscc_decoder_deps="zlib"
2047 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2048 rv10_encoder_select="h263_encoder"
2049 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2050 rv20_encoder_select="h263_encoder"
2051 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2052 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2053 screenpresso_decoder_deps="zlib"
2054 shorten_decoder_select="golomb"
2055 sipr_decoder_select="lsp"
2056 sp5x_decoder_select="mjpeg_decoder"
2057 svq1_decoder_select="hpeldsp"
2058 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2059 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2060 svq3_decoder_suggest="zlib"
2061 tak_decoder_select="audiodsp"
2062 tdsc_decoder_deps="zlib"
2063 tdsc_decoder_select="mjpeg_decoder"
2064 theora_decoder_select="vp3_decoder"
2065 thp_decoder_select="mjpeg_decoder"
2066 tiff_decoder_suggest="zlib"
2067 tiff_encoder_suggest="zlib"
2068 truehd_decoder_select="mlp_decoder"
2069 truemotion2_decoder_select="bswapdsp"
2070 truespeech_decoder_select="bswapdsp"
2071 tscc_decoder_deps="zlib"
2072 txd_decoder_select="texturedsp"
2073 twinvq_decoder_select="mdct lsp sinewin"
2074 utvideo_decoder_select="bswapdsp"
2075 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2076 vble_decoder_select="huffyuvdsp"
2077 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2078 vc1image_decoder_select="vc1_decoder"
2079 vorbis_decoder_select="mdct"
2080 vorbis_encoder_select="mdct"
2081 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2082 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2083 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2084 vp6a_decoder_select="vp6_decoder"
2085 vp6f_decoder_select="vp6_decoder"
2086 vp7_decoder_select="h264pred videodsp vp8dsp"
2087 vp8_decoder_select="h264pred videodsp vp8dsp"
2088 vp9_decoder_select="videodsp"
2089 webp_decoder_select="vp8_decoder"
2090 wmapro_decoder_select="mdct sinewin wma_freqs"
2091 wmav1_decoder_select="mdct sinewin wma_freqs"
2092 wmav1_encoder_select="mdct sinewin wma_freqs"
2093 wmav2_decoder_select="mdct sinewin wma_freqs"
2094 wmav2_encoder_select="mdct sinewin wma_freqs"
2095 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2096 wmv1_decoder_select="h263_decoder"
2097 wmv1_encoder_select="h263_encoder"
2098 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2099 wmv2_encoder_select="h263_encoder wmv2dsp"
2100 wmv3_decoder_select="vc1_decoder"
2101 wmv3image_decoder_select="wmv3_decoder"
2102 zerocodec_decoder_deps="zlib"
2103 zlib_decoder_deps="zlib"
2104 zlib_encoder_deps="zlib"
2105 zmbv_decoder_deps="zlib"
2106 zmbv_encoder_deps="zlib"
2107
2108 # hardware accelerators
2109 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2110 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2111 vaapi_deps="va_va_h"
2112 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2113 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2114 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2115
2116 h263_vaapi_hwaccel_deps="vaapi"
2117 h263_vaapi_hwaccel_select="h263_decoder"
2118 h264_d3d11va_hwaccel_deps="d3d11va"
2119 h264_d3d11va_hwaccel_select="h264_decoder"
2120 h264_dxva2_hwaccel_deps="dxva2"
2121 h264_dxva2_hwaccel_select="h264_decoder"
2122 h264_mmal_decoder_deps="mmal"
2123 h264_mmal_hwaccel_deps="mmal"
2124 h264_mmal_decoder_select="h264_decoder"
2125 h264_mmal_encoder_deps="mmal"
2126 h264_qsv_hwaccel_deps="libmfx"
2127 h264_vaapi_hwaccel_deps="vaapi"
2128 h264_vaapi_hwaccel_select="h264_decoder"
2129 h264_vda_hwaccel_deps="vda"
2130 h264_vda_hwaccel_select="h264_decoder"
2131 h264_vda_old_hwaccel_deps="vda"
2132 h264_vda_old_hwaccel_select="h264_decoder"
2133 h264_vdpau_hwaccel_deps="vdpau"
2134 h264_vdpau_hwaccel_select="h264_decoder"
2135 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2136 hevc_d3d11va_hwaccel_select="hevc_decoder"
2137 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2138 hevc_dxva2_hwaccel_select="hevc_decoder"
2139 hevc_qsv_hwaccel_deps="libmfx"
2140 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2141 hevc_vdpau_hwaccel_select="hevc_decoder"
2142 mpeg1_vdpau_hwaccel_deps="vdpau"
2143 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2144 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2145 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2146 mpeg2_dxva2_hwaccel_deps="dxva2"
2147 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2148 mpeg2_qsv_hwaccel_deps="libmfx"
2149 mpeg2_vaapi_hwaccel_deps="vaapi"
2150 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2151 mpeg2_vdpau_hwaccel_deps="vdpau"
2152 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2153 mpeg4_vaapi_hwaccel_deps="vaapi"
2154 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2155 mpeg4_vdpau_hwaccel_deps="vdpau"
2156 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2157 vc1_d3d11va_hwaccel_deps="d3d11va"
2158 vc1_d3d11va_hwaccel_select="vc1_decoder"
2159 vc1_dxva2_hwaccel_deps="dxva2"
2160 vc1_dxva2_hwaccel_select="vc1_decoder"
2161 vc1_vaapi_hwaccel_deps="vaapi"
2162 vc1_vaapi_hwaccel_select="vc1_decoder"
2163 vc1_vdpau_hwaccel_deps="vdpau"
2164 vc1_vdpau_hwaccel_select="vc1_decoder"
2165 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2166 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2167 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2168 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2169
2170 # parsers
2171 h264_parser_select="h264_decoder"
2172 hevc_parser_select="golomb"
2173 mpegvideo_parser_select="mpegvideo"
2174 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2175 vc1_parser_select="vc1dsp"
2176
2177 # bitstream_filters
2178 mjpeg2jpeg_bsf_select="jpegtables"
2179
2180 # external libraries
2181 libdcadec_decoder_deps="libdcadec"
2182 libfaac_encoder_deps="libfaac"
2183 libfaac_encoder_select="audio_frame_queue"
2184 libfdk_aac_decoder_deps="libfdk_aac"
2185 libfdk_aac_encoder_deps="libfdk_aac"
2186 libfdk_aac_encoder_select="audio_frame_queue"
2187 libgsm_decoder_deps="libgsm"
2188 libgsm_encoder_deps="libgsm"
2189 libgsm_ms_decoder_deps="libgsm"
2190 libgsm_ms_encoder_deps="libgsm"
2191 libilbc_decoder_deps="libilbc"
2192 libilbc_encoder_deps="libilbc"
2193 libkvazaar_encoder_deps="libkvazaar"
2194 libmp3lame_encoder_deps="libmp3lame"
2195 libmp3lame_encoder_select="audio_frame_queue"
2196 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2197 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2198 libopencore_amrnb_encoder_select="audio_frame_queue"
2199 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2200 libopenh264_encoder_deps="libopenh264"
2201 libopenjpeg_decoder_deps="libopenjpeg"
2202 libopenjpeg_encoder_deps="libopenjpeg"
2203 libopus_decoder_deps="libopus"
2204 libopus_encoder_deps="libopus"
2205 libopus_encoder_select="audio_frame_queue"
2206 libschroedinger_decoder_deps="libschroedinger"
2207 libschroedinger_encoder_deps="libschroedinger"
2208 libspeex_decoder_deps="libspeex"
2209 libspeex_encoder_deps="libspeex"
2210 libspeex_encoder_select="audio_frame_queue"
2211 libtheora_encoder_deps="libtheora"
2212 libtwolame_encoder_deps="libtwolame"
2213 libvo_aacenc_encoder_deps="libvo_aacenc"
2214 libvo_aacenc_encoder_select="audio_frame_queue"
2215 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2216 libvorbis_encoder_deps="libvorbis"
2217 libvorbis_encoder_select="audio_frame_queue"
2218 libvpx_vp8_decoder_deps="libvpx"
2219 libvpx_vp8_encoder_deps="libvpx"
2220 libvpx_vp9_decoder_deps="libvpx"
2221 libvpx_vp9_encoder_deps="libvpx"
2222 libwavpack_encoder_deps="libwavpack"
2223 libwebp_encoder_deps="libwebp"
2224 libx262_encoder_deps="libx262"
2225 libx264_encoder_deps="libx264"
2226 libx265_encoder_deps="libx265"
2227 libxavs_encoder_deps="libxavs"
2228 libxvid_encoder_deps="libxvid"
2229
2230 # demuxers / muxers
2231 ac3_demuxer_select="ac3_parser"
2232 asf_demuxer_select="riffdec"
2233 asf_muxer_select="riffenc"
2234 asf_stream_muxer_select="asf_muxer"
2235 avi_demuxer_select="iso_media riffdec"
2236 avi_muxer_select="riffenc"
2237 avisynth_demuxer_deps="avisynth"
2238 avisynth_demuxer_select="riffdec"
2239 caf_demuxer_select="iso_media riffdec"
2240 dash_muxer_select="mp4_muxer"
2241 dirac_demuxer_select="dirac_parser"
2242 dv_demuxer_select="dvprofile"
2243 dv_muxer_select="dvprofile"
2244 dxa_demuxer_select="riffdec"
2245 eac3_demuxer_select="ac3_parser"
2246 f4v_muxer_select="mov_muxer"
2247 flac_demuxer_select="flac_parser"
2248 hds_muxer_select="flv_muxer"
2249 hls_muxer_select="mpegts_muxer"
2250 ipod_muxer_select="mov_muxer"
2251 ismv_muxer_select="mov_muxer"
2252 matroska_audio_muxer_select="matroska_muxer"
2253 matroska_demuxer_select="iso_media riffdec"
2254 matroska_demuxer_suggest="bzlib lzo zlib"
2255 matroska_muxer_select="iso_media riffenc"
2256 mmf_muxer_select="riffenc"
2257 mov_demuxer_select="iso_media riffdec"
2258 mov_demuxer_suggest="zlib"
2259 mov_muxer_select="iso_media riffenc rtpenc_chain"
2260 mp3_demuxer_select="mpegaudio_parser"
2261 mp4_muxer_select="mov_muxer"
2262 mpegts_demuxer_select="iso_media"
2263 mpegts_muxer_select="adts_muxer latm_muxer"
2264 mpegtsraw_demuxer_select="mpegts_demuxer"
2265 mxf_d10_muxer_select="mxf_muxer"
2266 nut_muxer_select="riffenc"
2267 nuv_demuxer_select="riffdec"
2268 oga_muxer_select="ogg_muxer"
2269 ogg_demuxer_select="dirac_parse"
2270 opus_muxer_select="ogg_muxer"
2271 psp_muxer_select="mov_muxer"
2272 rtp_demuxer_select="sdp_demuxer"
2273 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2274 rtsp_demuxer_select="http_protocol rtpdec"
2275 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2276 sap_demuxer_select="sdp_demuxer"
2277 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2278 sdp_demuxer_select="rtpdec"
2279 smoothstreaming_muxer_select="ismv_muxer"
2280 spdif_muxer_select="aac_parser"
2281 spx_muxer_select="ogg_muxer"
2282 swf_demuxer_suggest="zlib"
2283 tak_demuxer_select="tak_parser"
2284 tg2_muxer_select="mov_muxer"
2285 tgp_muxer_select="mov_muxer"
2286 w64_demuxer_select="wav_demuxer"
2287 wav_demuxer_select="riffdec"
2288 wav_muxer_select="riffenc"
2289 webm_muxer_select="iso_media riffenc"
2290 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2291 wtv_demuxer_select="mpegts_demuxer riffdec"
2292 xmv_demuxer_select="riffdec"
2293 xwma_demuxer_select="riffdec"
2294
2295 # indevs / outdevs
2296 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2297 alsa_outdev_deps="alsa_asoundlib_h"
2298 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2299 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2300 dv1394_indev_deps="dv1394"
2301 dv1394_indev_select="dv_demuxer"
2302 fbdev_indev_deps="linux_fb_h"
2303 jack_indev_deps="jack_jack_h pthreads"
2304 libcdio_indev_deps="libcdio"
2305 libdc1394_indev_deps="libdc1394"
2306 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2307 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2308 pulse_indev_deps="libpulse"
2309 sndio_indev_deps="sndio_h"
2310 sndio_outdev_deps="sndio_h"
2311 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2312 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2313 vfwcap_indev_extralibs="-lavicap32"
2314 x11grab_indev_deps="x11grab"
2315 x11grab_xcb_indev_deps="libxcb"
2316
2317 # protocols
2318 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2319 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2320 ffrtmpcrypt_protocol_select="tcp_protocol"
2321 ffrtmphttp_protocol_deps="!librtmp_protocol"
2322 ffrtmphttp_protocol_select="http_protocol"
2323 gopher_protocol_select="network"
2324 http_protocol_select="tcp_protocol"
2325 httpproxy_protocol_select="tcp_protocol"
2326 https_protocol_select="tls_protocol"
2327 icecast_protocol_select="http_protocol"
2328 librtmp_protocol_deps="librtmp"
2329 librtmpe_protocol_deps="librtmp"
2330 librtmps_protocol_deps="librtmp"
2331 librtmpt_protocol_deps="librtmp"
2332 librtmpte_protocol_deps="librtmp"
2333 mmsh_protocol_select="http_protocol"
2334 mmst_protocol_select="network"
2335 rtmp_protocol_deps="!librtmp_protocol"
2336 rtmp_protocol_select="tcp_protocol"
2337 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2338 rtmps_protocol_deps="!librtmp_protocol"
2339 rtmps_protocol_select="tls_protocol"
2340 rtmpt_protocol_select="ffrtmphttp_protocol"
2341 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2342 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2343 rtp_protocol_select="udp_protocol"
2344 sctp_protocol_deps="struct_sctp_event_subscribe"
2345 sctp_protocol_select="network"
2346 srtp_protocol_select="rtp_protocol srtp"
2347 tcp_protocol_select="network"
2348 tls_gnutls_protocol_deps="gnutls"
2349 tls_gnutls_protocol_select="tcp_protocol"
2350 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2351 tls_openssl_protocol_select="tcp_protocol"
2352 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2353 udp_protocol_select="network"
2354 unix_protocol_deps="sys_un_h"
2355 unix_protocol_select="network"
2356
2357 # filters
2358 blackframe_filter_deps="gpl"
2359 boxblur_filter_deps="gpl"
2360 bs2b_filter_deps="libbs2b"
2361 cropdetect_filter_deps="gpl"
2362 delogo_filter_deps="gpl"
2363 drawtext_filter_deps="libfreetype"
2364 frei0r_filter_deps="frei0r dlopen"
2365 frei0r_filter_extralibs='$ldl'
2366 frei0r_src_filter_deps="frei0r dlopen"
2367 frei0r_src_filter_extralibs='$ldl'
2368 hqdn3d_filter_deps="gpl"
2369 hwupload_cuda_filter_deps="cuda"
2370 interlace_filter_deps="gpl"
2371 ocv_filter_deps="libopencv"
2372 resample_filter_deps="avresample"
2373 scale_filter_deps="swscale"
2374 scale_npp_filter_deps="cuda libnpp"
2375 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2376
2377 # examples
2378 avcodec_example_deps="avcodec avutil"
2379 filter_audio_example_deps="avfilter avutil"
2380 metadata_example_deps="avformat avutil"
2381 output_example_deps="avcodec avformat avutil swscale"
2382 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2383 transcode_aac_example_deps="avcodec avformat avresample"
2384
2385 # libraries, in linking order
2386 avcodec_deps="avutil"
2387 avdevice_deps="avformat avcodec avutil"
2388 avfilter_deps="avutil"
2389 avformat_deps="avcodec avutil"
2390 avresample_deps="avutil"
2391 swscale_deps="avutil"
2392
2393 # programs
2394 avconv_deps="avcodec avfilter avformat avresample swscale"
2395 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2396 fps_filter null_filter resample_filter scale_filter
2397 setpts_filter trim_filter"
2398 avplay_deps="avcodec avfilter avformat avresample sdl"
2399 avplay_libs='$sdl_libs'
2400 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2401 avprobe_deps="avcodec avformat"
2402
2403 # documentation
2404 pod2man_deps="doc"
2405 texi2html_deps="doc"
2406
2407 # default parameters
2408
2409 logfile="config.log"
2410
2411 # installation paths
2412 prefix_default="/usr/local"
2413 bindir_default='${prefix}/bin'
2414 datadir_default='${prefix}/share/avconv'
2415 docdir_default='${prefix}/share/doc/libav'
2416 incdir_default='${prefix}/include'
2417 libdir_default='${prefix}/lib'
2418 mandir_default='${prefix}/share/man'
2419 shlibdir_default="$libdir_default"
2420
2421 # toolchain
2422 ar_default="ar"
2423 cc_default="gcc"
2424 host_cc_default="gcc"
2425 cp_f="cp -f"
2426 ln_s="ln -s -f"
2427 nm_default="nm -g"
2428 objformat="elf"
2429 pkg_config_default=pkg-config
2430 ranlib="ranlib"
2431 strip="strip"
2432 yasmexe="yasm"
2433
2434 # machine
2435 arch_default=$(uname -m)
2436 cpu="generic"
2437 intrinsics="none"
2438
2439 # OS
2440 target_os_default=$(tolower $(uname -s))
2441 host_os=$target_os_default
2442
2443 # configurable options
2444 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2445
2446 enable asm
2447 enable debug
2448 enable doc
2449 enable faan faandct faanidct
2450 enable optimizations
2451 enable safe_bitstream_reader
2452 enable static
2453 enable swscale_alpha
2454 enable valgrind_backtrace
2455
2456 # By default, enable only those hwaccels that have no external dependencies.
2457 enable d3d11va dxva2 vda vdpau
2458
2459 # build settings
2460 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2461 LIBPREF="lib"
2462 LIBSUF=".a"
2463 FULLNAME='$(NAME)$(BUILDSUF)'
2464 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2465 SLIBPREF="lib"
2466 SLIBSUF=".so"
2467 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2468 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2469 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2470 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2471 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2472 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2473
2474 asflags_filter=echo
2475 cflags_filter=echo
2476 ldflags_filter=echo
2477
2478 AS_C='-c'
2479 AS_O='-o $@'
2480 CC_C='-c'
2481 CC_E='-E -o $@'
2482 CC_O='-o $@'
2483 OBJCC_C='-c'
2484 OBJCC_E='-E -o $@'
2485 OBJCC_O='-o $@'
2486 LD_O='-o $@'
2487 LD_LIB='-l%'
2488 LD_PATH='-L'
2489 HOSTCC_C='-c'
2490 HOSTCC_E='-E -o $@'
2491 HOSTCC_O='-o $@'
2492 HOSTLD_O='-o $@'
2493
2494 host_libs='-lm'
2495 host_cflags_filter=echo
2496 host_ldflags_filter=echo
2497
2498 target_path='$(CURDIR)'
2499
2500 # since the object filename is not given with the -MM flag, the compiler
2501 # is only able to print the basename, and we must add the path ourselves
2502 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2503 DEPFLAGS='-MM'
2504
2505 # find source path
2506 if test -f configure; then
2507 source_path=.
2508 else
2509 source_path=$(cd $(dirname "$0"); pwd)
2510 echo "$source_path" | grep -q '[[:blank:]]' &&
2511 die "Out of tree builds are impossible with whitespace in source path."
2512 test -e "$source_path/config.h" &&
2513 die "Out of tree builds are impossible with config.h in source dir."
2514 fi
2515
2516 for v in "$@"; do
2517 r=${v#*=}
2518 l=${v%"$r"}
2519 r=$(sh_quote "$r")
2520 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2521 done
2522
2523 find_things(){
2524 thing=$1
2525 pattern=$2
2526 file=$source_path/$3
2527 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2528 }
2529
2530 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2531 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2532 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2533 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2534 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2535 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2536 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2537 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2538 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2539
2540 find_things_extern(){
2541 thing=$1
2542 pattern=$2
2543 file=$source_path/$3
2544 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2545 }
2546
2547 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2548 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2549
2550 ALL_COMPONENTS="
2551 $BSF_LIST
2552 $DECODER_LIST
2553 $DEMUXER_LIST
2554 $ENCODER_LIST
2555 $FILTER_LIST
2556 $HWACCEL_LIST
2557 $INDEV_LIST
2558 $MUXER_LIST
2559 $OUTDEV_LIST
2560 $PARSER_LIST
2561 $PROTOCOL_LIST
2562 "
2563
2564 for n in $COMPONENT_LIST; do
2565 v=$(toupper ${n%s})_LIST
2566 eval enable \$$v
2567 eval ${n}_if_any="\$$v"
2568 done
2569
2570 enable $ARCH_EXT_LIST
2571
2572 die_unknown(){
2573 echo "Unknown option \"$1\"."
2574 echo "See $0 --help for available options."
2575 exit 1
2576 }
2577
2578 print_3_columns() {
2579 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2580 }
2581
2582 show_list() {
2583 suffix=_$1
2584 shift
2585 echo $* | sed s/$suffix//g | print_3_columns
2586 exit 0
2587 }
2588
2589 rand_list(){
2590 IFS=', '
2591 set -- $*
2592 unset IFS
2593 for thing; do
2594 comp=${thing%:*}
2595 prob=${thing#$comp}
2596 prob=${prob#:}
2597 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2598 echo "prob ${prob:-0.5}"
2599 printf '%s\n' $comp
2600 done
2601 }
2602
2603 do_random(){
2604 action=$1
2605 shift
2606 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2607 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2608 }
2609
2610 for opt do
2611 optval="${opt#*=}"
2612 case "$opt" in
2613 --extra-ldflags=*)
2614 add_ldflags $optval
2615 ;;
2616 --extra-ldexeflags=*)
2617 add_ldexeflags $optval
2618 ;;
2619 --extra-libs=*)
2620 add_extralibs $optval
2621 ;;
2622 --disable-devices)
2623 disable $INDEV_LIST $OUTDEV_LIST
2624 ;;
2625 --enable-debug=*)
2626 debuglevel="$optval"
2627 ;;
2628 --disable-programs)
2629 disable $PROGRAM_LIST
2630 ;;
2631 --disable-everything)
2632 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2633 ;;
2634 --disable-all)
2635 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2636 disable $LIBRARY_LIST $PROGRAM_LIST doc
2637 ;;
2638 --enable-random|--disable-random)
2639 action=${opt%%-random}
2640 do_random ${action#--} $COMPONENT_LIST
2641 ;;
2642 --enable-random=*|--disable-random=*)
2643 action=${opt%%-random=*}
2644 do_random ${action#--} $optval
2645 ;;
2646 --enable-*=*|--disable-*=*)
2647 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2648 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2649 eval list=\$$(toupper $thing)_LIST
2650 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2651 $action $(filter "$name" $list)
2652 ;;
2653 --enable-avserver|--disable-avserver*)
2654 warn "avserver has been removed, the ${opt} option is only"\
2655 "provided for compatibility and will be removed in the future"
2656 ;;
2657 --enable-?*|--disable-?*)
2658 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2659 if is_in $option $COMPONENT_LIST; then
2660 test $action = disable && action=unset
2661 eval $action \$$(toupper ${option%s})_LIST
2662 elif is_in $option $CMDLINE_SELECT; then
2663 $action $option
2664 else
2665 die_unknown $opt
2666 fi
2667 ;;
2668 --list-*)
2669 NAME="${opt#--list-}"
2670 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2671 NAME=${NAME%s}
2672 eval show_list $NAME \$$(toupper $NAME)_LIST
2673 ;;
2674 --help|-h) show_help
2675 ;;
2676 *)
2677 optname="${opt%%=*}"
2678 optname="${optname#--}"
2679 optname=$(echo "$optname" | sed 's/-/_/g')
2680 if is_in $optname $CMDLINE_SET; then
2681 eval $optname='$optval'
2682 elif is_in $optname $CMDLINE_APPEND; then
2683 append $optname "$optval"
2684 else
2685 die_unknown $opt
2686 fi
2687 ;;
2688 esac
2689 done
2690
2691 for e in $env; do
2692 eval "export $e"
2693 done
2694
2695 disabled logging && logfile=/dev/null
2696
2697 # Disable all the library-specific components if the library itself
2698 # is disabled, see AVCODEC_LIST and following _LIST variables.
2699
2700 disable_components(){
2701 disabled ${1} && disable $(
2702 eval components="\$$(toupper ${1})_COMPONENTS"
2703 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2704 )
2705 }
2706
2707 map 'disable_components $v' $LIBRARY_LIST
2708
2709 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2710 set >> $logfile
2711
2712 case "$toolchain" in
2713 *-asan)
2714 cc_default="${toolchain%-asan}"
2715 add_cflags -fsanitize=address
2716 add_ldflags -fsanitize=address
2717 ;;
2718 *-msan)
2719 cc_default="${toolchain%-msan}"
2720 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2721 add_ldflags -fsanitize=memory
2722 ;;
2723 *-tsan)
2724 cc_default="${toolchain%-tsan}"
2725 add_cflags -fsanitize=thread -pie
2726 add_ldflags -fsanitize=thread -pie
2727 case "$toolchain" in
2728 gcc-tsan)
2729 add_cflags -fPIC
2730 add_ldflags -fPIC
2731 ;;
2732 esac
2733 ;;
2734 *-usan)
2735 cc_default="${toolchain%-usan}"
2736 add_cflags -fsanitize=undefined
2737 add_ldflags -fsanitize=undefined
2738 case "$toolchain" in
2739 clang-usan)
2740 add_cflags -O1
2741 ;;
2742 esac
2743 ;;
2744 valgrind-*)
2745 target_exec_default="valgrind"
2746 case "$toolchain" in
2747 valgrind-massif)
2748 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2749 ;;
2750 valgrind-memcheck)
2751 target_exec_args="--track-origins=yes --leak-check=full"
2752 ;;
2753 esac
2754 ;;
2755 msvc)
2756 # Check whether the current MSVC version needs the C99 converter.
2757 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2758 # support enough of C99 to build libav. Default to the new
2759 # behaviour if the regexp was unable to match anything, since this
2760 # successfully parses the version number of existing supported
2761 # versions that require the converter (MSVC 2010 and 2012).
2762 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2763 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2764 cc_default="cl"
2765 else
2766 cc_default="c99wrap cl"
2767 fi
2768 ld_default="$source_path/compat/windows/mslink"
2769 nm_default="dumpbin -symbols"
2770 ar_default="lib"
2771 case "$arch" in
2772 arm*)
2773 as_default="armasm"
2774 ;;
2775 esac
2776 target_os_default="win32"
2777 # Use a relative path for TMPDIR. This makes sure all the
2778 # ffconf temp files are written with a relative path, avoiding
2779 # issues with msys/win32 path conversion for MSVC parameters
2780 # such as -Fo<file> or -out:<file>.
2781 TMPDIR=.
2782 ;;
2783 icl)
2784 cc_default="icl"
2785 ld_default="xilink"
2786 nm_default="dumpbin -symbols"
2787 ar_default="xilib"
2788 target_os_default="win32"
2789 TMPDIR=.
2790 ;;
2791 gcov)
2792 add_cflags -fprofile-arcs -ftest-coverage
2793 add_ldflags -fprofile-arcs -ftest-coverage
2794 ;;
2795 llvm-cov)
2796 add_cflags -fprofile-arcs -ftest-coverage
2797 add_ldflags --coverage
2798 ;;
2799 hardened)
2800 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2801 add_cflags -fno-strict-overflow -fstack-protector-all
2802 add_ldflags -Wl,-z,relro -Wl,-z,now
2803 ;;
2804 ?*)
2805 die "Unknown toolchain $toolchain"
2806 ;;
2807 esac
2808
2809 test -n "$cross_prefix" && enable cross_compile
2810
2811 if enabled cross_compile; then
2812 test -n "$arch" && test -n "$target_os" ||
2813 die "Must specify target arch and OS when cross-compiling"
2814 fi
2815
2816 ar_default="${cross_prefix}${ar_default}"
2817 cc_default="${cross_prefix}${cc_default}"
2818 occ_default="${cross_prefix}${occ_default}"
2819 nm_default="${cross_prefix}${nm_default}"
2820 pkg_config_default="${cross_prefix}${pkg_config_default}"
2821 ranlib="${cross_prefix}${ranlib}"
2822 strip="${cross_prefix}${strip}"
2823
2824 sysinclude_default="${sysroot}/usr/include"
2825
2826 set_default arch cc pkg_config sysinclude target_exec target_os
2827 enabled cross_compile || host_cc_default=$cc
2828 set_default host_cc
2829
2830 if ! $pkg_config --version >/dev/null 2>&1; then
2831 warn "$pkg_config not found, library detection may fail."
2832 pkg_config=false
2833 fi
2834
2835 exesuf() {
2836 case $1 in
2837 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2838 esac
2839 }
2840
2841 EXESUF=$(exesuf $target_os)
2842 HOSTEXESUF=$(exesuf $host_os)
2843
2844 # set temporary file name
2845 : ${TMPDIR:=$TEMPDIR}
2846 : ${TMPDIR:=$TMP}
2847 : ${TMPDIR:=/tmp}
2848
2849 if ! check_cmd mktemp -u XXXXXX; then
2850 # simple replacement for missing mktemp
2851 # NOT SAFE FOR GENERAL USE
2852 mktemp(){
2853 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2854 }
2855 fi
2856
2857 tmpfile(){
2858 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2859 (set -C; exec > $tmp) 2>/dev/null ||
2860 die "Unable to create temporary file in $TMPDIR."
2861 append TMPFILES $tmp
2862 eval $1=$tmp
2863 }
2864
2865 trap 'rm -f -- $TMPFILES' EXIT
2866
2867 tmpfile TMPASM .asm
2868 tmpfile TMPC .c
2869 tmpfile TMPE $EXESUF
2870 tmpfile TMPH .h
2871 tmpfile TMPO .o
2872 tmpfile TMPS .S
2873 tmpfile TMPSH .sh
2874 tmpfile TMPV .ver
2875
2876 unset -f mktemp
2877
2878 chmod +x $TMPE
2879
2880 # make sure we can execute files in $TMPDIR
2881 cat > $TMPSH 2>> $logfile <<EOF
2882 #! /bin/sh
2883 EOF
2884 chmod +x $TMPSH >> $logfile 2>&1
2885 if ! $TMPSH >> $logfile 2>&1; then
2886 cat <<EOF
2887 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2888 variable to another directory and make sure that it is not mounted noexec.
2889 EOF
2890 die "Sanity test failed."
2891 fi
2892
2893 armasm_flags(){
2894 for flag; do
2895 case $flag in
2896 # Filter out MSVC cl.exe options from cflags that shouldn't
2897 # be passed to gas-preprocessor
2898 -M[TD]*) ;;
2899 *) echo $flag ;;
2900 esac
2901 done
2902 }
2903
2904 ccc_flags(){
2905 for flag; do
2906 case $flag in
2907 -std=c99) echo -c99 ;;
2908 -mcpu=*) echo -arch ${flag#*=} ;;
2909 -mieee) echo -ieee ;;
2910 -O*|-fast) echo $flag ;;
2911 -fno-math-errno) echo -assume nomath_errno ;;
2912 -g) echo -g3 ;;
2913 -Wall) echo -msg_enable level2 ;;
2914 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2915 -Wl,*) echo $flag ;;
2916 -f*|-W*) ;;
2917 *) echo $flag ;;
2918 esac
2919 done
2920 }
2921
2922 cparser_flags(){
2923 for flag; do
2924 case $flag in
2925 -Wno-switch) echo -Wno-switch-enum ;;
2926 -Wno-format-zero-length) ;;
2927 -Wdisabled-optimization) ;;
2928 -Wno-pointer-sign) echo -Wno-other ;;
2929 *) echo $flag ;;
2930 esac
2931 done
2932 }
2933
2934 msvc_common_flags(){
2935 for flag; do
2936 case $flag in
2937 # In addition to specifying certain flags under the compiler
2938 # specific filters, they must be specified here as well or else the
2939 # generic catch all at the bottom will print the original flag.
2940 -Wall) ;;
2941 -std=c99) ;;
2942 # Common flags
2943 -fomit-frame-pointer) ;;
2944 -g) echo -Z7 ;;
2945 -fno-math-errno) ;;
2946 -fno-common) ;;
2947 -fno-signed-zeros) ;;
2948 -fPIC) ;;
2949 -mthumb) ;;
2950 -march=*) ;;
2951 -lz) echo zlib.lib ;;
2952 -lavifil32) echo vfw32.lib ;;
2953 -lavicap32) echo vfw32.lib user32.lib ;;
2954 -lx264) echo libx264.lib ;;
2955 -l*) echo ${flag#-l}.lib ;;
2956 -L*) echo -libpath:${flag#-L} ;;
2957 *) echo $flag ;;
2958 esac
2959 done
2960 }
2961
2962 msvc_flags(){
2963 msvc_common_flags "$@"
2964 for flag; do
2965 case $flag in
2966 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2967 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2968 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2969 -wd4273 -wd4554 -wd4701 ;;
2970 esac
2971 done
2972 }
2973
2974 icl_flags(){
2975 msvc_common_flags "$@"
2976 for flag; do
2977 case $flag in
2978 # Despite what Intel's documentation says -Wall, which is supported
2979 # on Windows, does enable remarks so disable them here.
2980 -Wall) echo $flag -Qdiag-disable:remark ;;
2981 -std=c99) echo -Qstd=c99 ;;
2982 esac
2983 done
2984 }
2985
2986 pgi_flags(){
2987 for flag; do
2988 case $flag in
2989 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2990 -fomit-frame-pointer) echo -Mnoframe ;;
2991 -g) echo -gopt ;;
2992 *) echo $flag ;;
2993 esac
2994 done
2995 }
2996
2997 suncc_flags(){
2998 for flag; do
2999 case $flag in
3000 -march=*|-mcpu=*)
3001 case "${flag#*=}" in
3002 native) echo -xtarget=native ;;
3003 v9|niagara) echo -xarch=sparc ;;
3004 ultrasparc) echo -xarch=sparcvis ;;
3005 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3006 i586|pentium) echo -xchip=pentium ;;
3007 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3008 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3009 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3010 pentium4*) echo -xtarget=pentium4 ;;
3011 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3012 *-sse3) echo -xarch=sse3 ;;
3013 core2) echo -xarch=ssse3 -xchip=core2 ;;
3014 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3015 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3016 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3017 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3018 k8|opteron|athlon64|athlon-fx)
3019 echo -xarch=sse2a ;;
3020 athlon*) echo -xarch=pentium_proa ;;
3021 esac
3022 ;;
3023 -std=c99) echo -xc99 ;;
3024 -fomit-frame-pointer) echo -xregs=frameptr ;;
3025 -fPIC) echo -KPIC -xcode=pic32 ;;
3026 -W*,*) echo $flag ;;
3027 -f*-*|-W*|-mimpure-text) ;;
3028 -shared) echo -G ;;
3029 *) echo $flag ;;
3030 esac
3031 done
3032 }
3033
3034 tms470_flags(){
3035 for flag; do
3036 case $flag in
3037 -march=*|-mcpu=*)
3038 case "${flag#*=}" in
3039 armv7-a|cortex-a*) echo -mv=7a8 ;;
3040 armv7-r|cortex-r*) echo -mv=7r4 ;;
3041 armv7-m|cortex-m*) echo -mv=7m3 ;;
3042 armv6*|arm11*) echo -mv=6 ;;
3043 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3044 echo -mv=5e ;;
3045 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3046 esac
3047 ;;
3048 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3049 -mfpu=vfp) echo --float_support=vfpv2 ;;
3050 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3051 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3052 -msoft-float) echo --float_support=vfplib ;;
3053 -O[0-3]|-mf=*) echo $flag ;;
3054 -g) echo -g -mn ;;
3055 -pds=*) echo $flag ;;
3056 -D*|-I*) echo $flag ;;
3057 --gcc|--abi=*) echo $flag ;;
3058 -me) echo $flag ;;
3059 esac
3060 done
3061 }
3062
3063 probe_cc(){
3064 pfx=$1
3065 _cc=$2
3066
3067 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3068 unset _ld_o _ldflags _ld_lib _ld_path
3069 unset _depflags _DEPCMD _DEPFLAGS
3070 _flags_filter=echo
3071
3072 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3073 _type=llvm_gcc
3074 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3075 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3076 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3077 _cflags_speed='-O3'
3078 _cflags_size='-Os'
3079 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3080 _type=gcc
3081 gcc_version=$($_cc --version | head -n1)
3082 gcc_basever=$($_cc -dumpversion)
3083 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3084 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3085 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3086 if ! $_cc -dumpversion | grep -q '^2\.'; then
3087 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3088 fi
3089 _cflags_speed='-O3'
3090 _cflags_size='-Os'
3091 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3092 _type=icc
3093 _ident=$($_cc --version | head -n1)
3094 _depflags='-MMD'
3095 _cflags_speed='-O3'
3096 _cflags_size='-Os'
3097 _cflags_noopt='-O1'
3098 elif $_cc -v 2>&1 | grep -q xlc; then
3099 _type=xlc
3100 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3101 _cflags_speed='-O5'
3102 _cflags_size='-O5 -qcompact'
3103 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3104 _type=ccc
3105 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3106 _DEPFLAGS='-M'
3107 _cflags_speed='-fast'
3108 _cflags_size='-O1'
3109 _flags_filter=ccc_flags
3110 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3111 test -d "$sysroot" || die "No valid sysroot specified."
3112 _type=armcc
3113 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3114 armcc_conf="$PWD/armcc.conf"
3115 $_cc --arm_linux_configure \
3116 --arm_linux_config_file="$armcc_conf" \
3117 --configure_sysroot="$sysroot" \
3118 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3119 die "Error creating armcc configuration file."
3120 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3121 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3122 as_default="${cross_prefix}gcc"
3123 _depflags='-MMD'
3124 _cflags_speed='-O3'
3125 _cflags_size='-Os'
3126 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3127 _type=tms470
3128 _ident=$($_cc -version | head -n1 | tr -s ' ')
3129 _flags='--gcc --abi=eabi -me'
3130 _cc_e='-ppl -fe=$@'
3131 _cc_o='-fe=$@'
3132 _depflags='-ppa -ppd=$(@:.o=.d)'
3133 _cflags_speed='-O3 -mf=5'
3134 _cflags_size='-O3 -mf=2'
3135 _flags_filter=tms470_flags
3136 elif $_cc -v 2>&1 | grep -q clang; then
3137 _type=clang
3138 _ident=$($_cc --version 2>/dev/null | head -n1)
3139 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3140 _cflags_speed='-O3'
3141 _cflags_size='-Os'
3142 elif $_cc -V 2>&1 | grep -q Sun; then
3143 _type=suncc
3144 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3145 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3146 _DEPFLAGS='-xM1 -xc99'
3147 _ldflags='-std=c99'
3148 _cflags_speed='-O5'
3149 _cflags_size='-O5 -xspace'
3150 _flags_filter=suncc_flags
3151 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3152 _type=pathscale
3153 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3154 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3155 _cflags_speed='-O2'
3156 _cflags_size='-Os'
3157 _flags_filter='filter_out -Wdisabled-optimization'
3158 elif $_cc -v 2>&1 | grep -q Open64; then
3159 _type=open64
3160 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3161 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3162 _cflags_speed='-O2'
3163 _cflags_size='-Os'
3164 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3165 elif $_cc -V 2>&1 | grep -q Portland; then
3166 _type=pgi
3167 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3168 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3169 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3170 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3171 _cflags_noopt="-O1"
3172 _flags_filter=pgi_flags
3173 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3174 _type=armasm
3175 _ident=$($_cc | head -n1)
3176 # 4509: "This form of conditional instruction is deprecated"
3177 _flags="-nologo -ignore 4509"
3178 _flags_filter=armasm_flags
3179 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3180 _type=msvc
3181 _ident=$($_cc 2>&1 | head -n1)
3182 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3183 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3184 _cflags_speed="-O2"
3185 _cflags_size="-O1"
3186 if $_cc -nologo- 2>&1 | grep -q Linker; then
3187 _ld_o='-out:$@'
3188 else
3189 _ld_o='-Fe$@'
3190 fi
3191 _cc_o='-Fo$@'
3192 _cc_e='-P -Fi$@'
3193 _flags_filter=msvc_flags
3194 _ld_lib='lib%.a'
3195 _ld_path='-libpath:'
3196 _flags='-nologo'
3197 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3198 elif $_cc 2>&1 | grep -q Intel; then
3199 _type=icl
3200 _ident=$($_cc 2>&1 | head -n1)
3201 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3202 # Not only is O3 broken on 13.x+ but it is slower on all previous
3203 # versions (tested) as well.
3204 _cflags_speed="-O2"
3205 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3206 if $_cc 2>&1 | grep -q Linker; then
3207 _ld_o='-out:$@'
3208 else
3209 _ld_o='-Fe$@'
3210 fi
3211 _cc_o='-Fo$@'
3212 _cc_e='-P'
3213 _flags_filter=icl_flags
3214 _ld_lib='lib%.a'
3215 _ld_path='-libpath:'
3216 # -Qdiag-error to make icl error when seeing certain unknown arguments
3217 _flags='-nologo -Qdiag-error:4044,10157'
3218 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3219 # with MSVC which enables it by default.
3220 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3221 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3222 _type=cparser
3223 _ident=$($_cc --version | head -n1)
3224 _depflags='-MMD'
3225 _cflags_speed='-O4'
3226 _cflags_size='-O2'
3227 _flags_filter=cparser_flags
3228 fi
3229
3230 eval ${pfx}_type=\$_type
3231 eval ${pfx}_ident=\$_ident
3232 }
3233
3234 set_ccvars(){
3235 eval ${1}_C=\${_cc_c-\${${1}_C}}
3236 eval ${1}_E=\${_cc_e-\${${1}_E}}
3237 eval ${1}_O=\${_cc_o-\${${1}_O}}
3238
3239 if [ -n "$_depflags" ]; then
3240 eval ${1}_DEPFLAGS=\$_depflags
3241 else
3242 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3243 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3244 eval DEP${1}FLAGS=\$_flags
3245 fi
3246 }
3247
3248 probe_cc cc "$cc"
3249 cflags_filter=$_flags_filter
3250 cflags_speed=$_cflags_speed
3251 cflags_size=$_cflags_size
3252 cflags_noopt=$_cflags_noopt
3253 add_cflags $_flags $_cflags
3254 cc_ldflags=$_ldflags
3255 set_ccvars CC
3256
3257 probe_cc hostcc "$host_cc"
3258 host_cflags_filter=$_flags_filter
3259 add_host_cflags $_flags $_cflags
3260 set_ccvars HOSTCC
3261
3262 test -n "$cc_type" && enable $cc_type ||
3263 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3264
3265 : ${as_default:=$cc}
3266 : ${objcc_default:=$cc}
3267 : ${dep_cc_default:=$cc}
3268 : ${ld_default:=$cc}
3269 : ${host_ld_default:=$host_cc}
3270 set_default ar as objcc dep_cc ld host_ld
3271
3272 probe_cc as "$as"
3273 asflags_filter=$_flags_filter
3274 add_asflags $_flags $_cflags
3275 set_ccvars AS
3276
3277 probe_cc objcc "$objcc"
3278 objcflags_filter=$_flags_filter
3279 add_objcflags $_flags $_cflags
3280 set_ccvars OBJC
3281
3282 probe_cc ld "$ld"
3283 ldflags_filter=$_flags_filter
3284 add_ldflags $_flags $_ldflags
3285 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3286 LD_O=${_ld_o-$LD_O}
3287 LD_LIB=${_ld_lib-$LD_LIB}
3288 LD_PATH=${_ld_path-$LD_PATH}
3289
3290 probe_cc hostld "$host_ld"
3291 host_ldflags_filter=$_flags_filter
3292 add_host_ldflags $_flags $_ldflags
3293 HOSTLD_O=${_ld_o-$HOSTLD_O}
3294
3295 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3296 probe_cc depcc "$dep_cc"
3297 CCDEP=${_DEPCMD:-$DEPCMD}
3298 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3299 DEPCCFLAGS=$_flags
3300 fi
3301
3302 if $ar 2>&1 | grep -q Microsoft; then
3303 arflags="-nologo"
3304 ar_o='-out:$@'
3305 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3306 arflags="rq"
3307 ar_o='$@'
3308 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3309 arflags='-Xany -r -c'
3310 ar_o='$@'
3311 else
3312 arflags="rc"
3313 ar_o='$@'
3314 fi
3315
3316 add_cflags $extra_cflags
3317 add_objcflags $extra_objcflags
3318 add_asflags $extra_cflags
3319
3320 if test -n "$sysroot"; then
3321 case "$cc_type" in
3322 gcc|llvm_gcc|clang)
3323 add_cppflags --sysroot="$sysroot"
3324 add_ldflags --sysroot="$sysroot"
3325 ;;
3326 tms470)
3327 add_cppflags -I"$sysinclude"
3328 add_ldflags --sysroot="$sysroot"
3329 ;;
3330 esac
3331 fi
3332
3333 if test "$cpu" = host; then
3334 enabled cross_compile &&
3335 die "--cpu=host makes no sense when cross-compiling."
3336
3337 case "$cc_type" in
3338 gcc|llvm_gcc)
3339 check_native(){
3340 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3341 sed -n "/cc1.*$1=/{
3342 s/.*$1=\\([^ ]*\\).*/\\1/
3343 p
3344 q
3345 }" $TMPE
3346 }
3347 cpu=$(check_native -march || check_native -mcpu)
3348 ;;
3349 esac
3350
3351 test "${cpu:-host}" = host &&
3352 die "--cpu=host not supported with compiler $cc"
3353 fi
3354
3355 # Deal with common $arch aliases
3356 case "$arch" in
3357 aarch64|arm64)
3358 arch="aarch64"
3359 ;;
3360 arm*)
3361 arch="arm"
3362 ;;
3363 mips*|IP*)
3364 case "$arch" in
3365 *el)
3366 add_cppflags -EL
3367 add_ldflags -EL
3368 ;;
3369 *eb)
3370 add_cppflags -EB
3371 add_ldflags -EB
3372 ;;
3373 esac
3374 arch="mips"
3375 ;;
3376 parisc*|hppa*)
3377 arch="parisc"
3378 ;;
3379 "Power Macintosh"|ppc*|powerpc*)
3380 arch="ppc"
3381 ;;
3382 s390|s390x)
3383 arch="s390"
3384 ;;
3385 sh4|sh)
3386 arch="sh4"
3387 ;;
3388 sun4u|sparc*)
3389 arch="sparc"
3390 ;;
3391 tilegx|tile-gx)
3392 arch="tilegx"
3393 ;;
3394 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3395 arch="x86"
3396 ;;
3397 esac
3398
3399 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3400 enable $arch
3401
3402 # Add processor-specific flags
3403 if enabled aarch64; then
3404
3405 case $cpu in
3406 armv*)
3407 cpuflags="-march=$cpu"
3408 ;;
3409 *)
3410 cpuflags="-mcpu=$cpu"
3411 ;;
3412 esac
3413
3414 elif enabled alpha; then
3415
3416 cpuflags="-mcpu=$cpu"
3417
3418 elif enabled arm; then
3419
3420 check_arm_arch() {
3421 check_cpp_condition stddef.h \
3422 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3423 $cpuflags
3424 }
3425
3426 probe_arm_arch() {
3427 if check_arm_arch 4; then echo armv4;
3428 elif check_arm_arch 4T; then echo armv4t;
3429 elif check_arm_arch 5; then echo armv5;
3430 elif check_arm_arch 5E; then echo armv5e;
3431 elif check_arm_arch 5T; then echo armv5t;
3432 elif check_arm_arch 5TE; then echo armv5te;
3433 elif check_arm_arch 5TEJ; then echo armv5te;
3434 elif check_arm_arch 6; then echo armv6;
3435 elif check_arm_arch 6J; then echo armv6j;
3436 elif check_arm_arch 6K; then echo armv6k;
3437 elif check_arm_arch 6Z; then echo armv6z;
3438 elif check_arm_arch 6ZK; then echo armv6zk;
3439 elif check_arm_arch 6T2; then echo armv6t2;
3440 elif check_arm_arch 7; then echo armv7;
3441 elif check_arm_arch 7A 7_A; then echo armv7-a;
3442 elif check_arm_arch 7S; then echo armv7-a;
3443 elif check_arm_arch 7R 7_R; then echo armv7-r;
3444 elif check_arm_arch 7M 7_M; then echo armv7-m;
3445 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3446 elif check_arm_arch 8A 8_A; then echo armv8-a;
3447 fi
3448 }
3449
3450 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3451
3452 case $cpu in
3453 armv*)
3454 cpuflags="-march=$cpu"
3455 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3456 ;;
3457 *)
3458 cpuflags="-mcpu=$cpu"
3459 case $cpu in
3460 cortex-a*) subarch=armv7a ;;
3461 cortex-r*) subarch=armv7r ;;
3462 cortex-m*) enable thumb; subarch=armv7m ;;
3463 arm11*) subarch=armv6 ;;
3464 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3465 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3466 *) subarch=$(probe_arm_arch) ;;
3467 esac
3468 ;;
3469 esac
3470
3471 case "$subarch" in
3472 armv5t*) enable fast_clz ;;
3473 armv[6-8]*) enable fast_clz fast_unaligned ;;
3474 esac
3475
3476 elif enabled avr32; then
3477
3478 case $cpu in
3479 ap7[02]0[0-2])
3480 subarch="avr32_ap"
3481 cpuflags="-mpart=$cpu"
3482 ;;
3483 ap)
3484 subarch="avr32_ap"
3485 cpuflags="-march=$cpu"
3486 ;;
3487 uc3[ab]*)
3488 subarch="avr32_uc"
3489 cpuflags="-mcpu=$cpu"
3490 ;;
3491 uc)
3492 subarch="avr32_uc"
3493 cpuflags="-march=$cpu"
3494 ;;
3495 esac
3496
3497 elif enabled bfin; then
3498
3499 cpuflags="-mcpu=$cpu"
3500
3501 elif enabled mips; then
3502
3503 cpuflags="-march=$cpu"
3504
3505 elif enabled ppc; then
3506
3507 disable ldbrx
3508
3509 case $(tolower $cpu) in
3510 601|ppc601|powerpc601)
3511 cpuflags="-mcpu=601"
3512 disable altivec
3513 ;;
3514 603*|ppc603*|powerpc603*)
3515 cpuflags="-mcpu=603"
3516 disable altivec
3517 ;;
3518 604*|ppc604*|powerpc604*)
3519 cpuflags="-mcpu=604"
3520 disable altivec
3521 ;;
3522 g3|75*|ppc75*|powerpc75*)
3523 cpuflags="-mcpu=750"
3524 disable altivec
3525 ;;
3526 g4|745*|ppc745*|powerpc745*)
3527 cpuflags="-mcpu=7450"
3528 disable vsx
3529 ;;
3530 74*|ppc74*|powerpc74*)
3531 cpuflags="-mcpu=7400"
3532 disable vsx
3533 ;;
3534 g5|970|ppc970|powerpc970)
3535 cpuflags="-mcpu=970"
3536 disable vsx
3537 ;;
3538 power[3-6]*)
3539 cpuflags="-mcpu=$cpu"
3540 disable vsx
3541 ;;
3542 power[7-8]*)
3543 cpuflags="-mcpu=$cpu"
3544 enable ldbrx
3545 ;;
3546 cell)
3547 cpuflags="-mcpu=cell"
3548 enable ldbrx
3549 disable vsx
3550 ;;
3551 e500mc)
3552 cpuflags="-mcpu=e500mc"
3553 disable altivec
3554 ;;
3555 e500v2)
3556 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3557 disable altivec
3558 disable dcbzl
3559 ;;
3560 e500)
3561 cpuflags="-mcpu=8540 -mhard-float"
3562 disable altivec
3563 disable dcbzl
3564 ;;
3565 esac
3566
3567 elif enabled sparc; then
3568
3569 case $cpu in
3570 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3571 cpuflags="-mcpu=$cpu"
3572 ;;
3573 ultrasparc*|niagara[234])
3574 cpuflags="-mcpu=$cpu"
3575 ;;
3576 esac
3577
3578 elif enabled x86; then
3579
3580 case $cpu in
3581 i[345]86|pentium)
3582 cpuflags="-march=$cpu"
3583 disable i686
3584 disable mmx
3585 ;;
3586 # targets that do NOT support nopl and conditional mov (cmov)
3587 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3588 cpuflags="-march=$cpu"
3589 disable i686
3590 ;;
3591 # targets that do support nopl and conditional mov (cmov)
3592 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3593 cpuflags="-march=$cpu"
3594 enable i686
3595 enable fast_cmov
3596 ;;
3597 # targets that do support conditional mov but on which it's slow
3598 pentium4|pentium4m|prescott|nocona)
3599 cpuflags="-march=$cpu"
3600 enable i686
3601 disable fast_cmov
3602 ;;
3603 esac
3604
3605 fi
3606
3607 if [ "$cpu" != generic ]; then
3608 add_cflags $cpuflags
3609 add_asflags $cpuflags
3610 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3611 fi
3612
3613 # compiler sanity check
3614 check_exec <<EOF
3615 int main(void){ return 0; }
3616 EOF
3617 if test "$?" != 0; then
3618 echo "$cc is unable to create an executable file."
3619 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3620 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3621 echo "Only do this if you know what cross compiling means."
3622 fi
3623 die "C compiler test failed."
3624 fi
3625
3626 add_cppflags -D_ISOC99_SOURCE
3627 check_cflags -std=c99
3628 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3629 #include <stdlib.h>
3630 EOF
3631 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3632 #include <stdlib.h>
3633 EOF
3634
3635 add_host_cppflags -D_ISOC99_SOURCE
3636 check_host_cflags -std=c99
3637 check_host_cflags -Wall
3638 check_host_cflags -O3
3639
3640 check_64bit(){
3641 arch32=$1
3642 arch64=$2
3643 expr=$3
3644 check_code cc "" "int test[2*($expr) - 1]" &&
3645 subarch=$arch64 || subarch=$arch32
3646 }
3647
3648 case "$arch" in
3649 aarch64|alpha|ia64)
3650 spic=$shared
3651 ;;
3652 mips)
3653 check_64bit mips mips64 '_MIPS_SIM > 1'
3654 spic=$shared
3655 ;;
3656 parisc)
3657 check_64bit parisc parisc64 'sizeof(void *) > 4'
3658 spic=$shared
3659 ;;
3660 ppc)
3661 check_64bit ppc ppc64 'sizeof(void *) > 4'
3662 spic=$shared
3663 ;;
3664 s390)
3665 check_64bit s390 s390x 'sizeof(void *) > 4'
3666 spic=$shared
3667 ;;
3668 sparc)
3669 check_64bit sparc sparc64 'sizeof(void *) > 4'
3670 spic=$shared
3671 ;;
3672 x86)
3673 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3674 if test "$subarch" = "x86_64"; then
3675 spic=$shared
3676 fi
3677 ;;
3678 esac
3679
3680 enable $subarch
3681 enabled spic && enable_weak pic
3682
3683 # OS specific
3684 case $target_os in
3685 aix)
3686 SHFLAGS=-shared
3687 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3688 enabled shared && add_ldflags -Wl,-brtl
3689 ;;
3690 android)
3691 disable symver
3692 enable section_data_rel_ro
3693 SLIB_INSTALL_NAME='$(SLIBNAME)'
3694 SLIB_INSTALL_LINKS=
3695 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3696 ;;
3697 haiku)
3698 prefix_default="/boot/common"
3699 network_extralibs="-lnetwork"
3700 host_libs=
3701 ;;
3702 sunos)
3703 SHFLAGS='-shared -Wl,-h,$$(@F)'
3704 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3705 network_extralibs="-lsocket -lnsl"
3706 # When using suncc to build, the Solaris linker will mark
3707 # an executable with each instruction set encountered by
3708 # the Solaris assembler. As our libraries contain their own
3709 # guards for processor-specific code, instead suppress
3710 # generation of the HWCAPS ELF section on Solaris x86 only.
3711 enabled_all suncc x86 &&
3712 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3713 add_ldflags -Wl,-M,mapfile
3714 nm_default='nm -P -g'