578a48d66db50efdbab84bc3d0ba4c3d28d3be46
[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-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
199 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
200 --enable-libopencv enable video filtering via libopencv [no]
201 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
202 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
203 --enable-libopus enable Opus de/encoding via libopus [no]
204 --enable-libpulse enable Pulseaudio input via libpulse [no]
205 --enable-librtmp enable RTMP[E] support via librtmp [no]
206 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
207 --enable-libsnappy enable Snappy compression [no]
208 --enable-libspeex enable Speex de/encoding via libspeex [no]
209 --enable-libtheora enable Theora encoding via libtheora [no]
210 --enable-libtwolame enable MP2 encoding via libtwolame [no]
211 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
212 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
213 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
214 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
215 --enable-libwavpack enable wavpack encoding via libwavpack [no]
216 --enable-libwebp enable WebP encoding via libwebp [no]
217 --enable-libx264 enable H.264 encoding via x264 [no]
218 --enable-libx265 enable HEVC encoding via x265 [no]
219 --enable-libxavs enable AVS encoding via xavs [no]
220 --enable-libxcb enable X11 grabbing using XCB [no]
221 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
222 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
223 --enable-libxvid enable Xvid encoding via xvidcore,
224 native MPEG-4/Xvid encoder exists [no]
225 --enable-mmal enable decoding via MMAL [no]
226 --enable-nvenc enable encoding via NVENC [no]
227 --enable-openssl enable openssl [no]
228 --enable-x11grab enable X11 grabbing (legacy) [no]
229 --enable-zlib enable zlib [autodetect]
230
231 Toolchain options:
232 --arch=ARCH select architecture [$arch]
233 --cpu=CPU select the minimum required CPU (affects
234 instruction selection, may crash on older CPUs)
235 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
236 --enable-cross-compile assume a cross-compiler is used
237 --sysroot=PATH root of cross-build tree
238 --sysinclude=PATH location of cross-build system headers
239 --target-os=OS compiler targets OS [$target_os]
240 --target-exec=CMD command to run executables on target
241 --target-path=DIR path to view of build directory on target
242 --target-samples=DIR path to samples directory on target
243 --toolchain=NAME set tool defaults according to NAME
244 --nm=NM use nm tool
245 --ar=AR use archive tool AR [$ar_default]
246 --as=AS use assembler AS [$as_default]
247 --cc=CC use C compiler CC [$cc_default]
248 --objcc=OCC use ObjC compiler OCC [$cc_default]
249 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
250 --ld=LD use linker LD
251 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
252 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
253 --host-cc=HOSTCC use host C compiler HOSTCC
254 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
255 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
256 --host-ld=HOSTLD use host linker HOSTLD
257 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
258 --host-libs=HLIBS use libs HLIBS when linking for host
259 --host-os=OS compiler host OS [$target_os]
260 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
261 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
262 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
263 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
264 --extra-libs=ELIBS add ELIBS [$ELIBS]
265 --extra-version=STRING version string suffix []
266 --optflags=OPTFLAGS override optimization-related compiler flags
267 --build-suffix=SUFFIX library name suffix []
268 --enable-pic build position-independent code
269 --enable-thumb compile for Thumb instruction set
270 --enable-lto use link-time optimization
271 --env="ENV=override" override the environment variables
272
273 Advanced options (experts only):
274 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
275 --custom-allocator=NAME use a supported custom allocator
276 --disable-symver disable symbol versioning
277 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
278 --disable-safe-bitstream-reader
279 disable buffer boundary checking in bitreaders
280 (faster, but may crash)
281 --enable-memalign-hack emulate memalign, interferes with memory debuggers
282 --enable-sram allow use of on-chip SRAM
283
284 Optimization options (experts only):
285 --disable-asm disable all assembly optimizations
286 --disable-altivec disable AltiVec optimizations
287 --disable-vsx disable VSX optimizations
288 --disable-power8 disable POWER8 optimizations
289 --disable-amd3dnow disable 3DNow! optimizations
290 --disable-amd3dnowext disable 3DNow! extended optimizations
291 --disable-mmx disable MMX optimizations
292 --disable-mmxext disable MMXEXT optimizations
293 --disable-sse disable SSE optimizations
294 --disable-sse2 disable SSE2 optimizations
295 --disable-sse3 disable SSE3 optimizations
296 --disable-ssse3 disable SSSE3 optimizations
297 --disable-sse4 disable SSE4 optimizations
298 --disable-sse42 disable SSE4.2 optimizations
299 --disable-avx disable AVX optimizations
300 --disable-xop disable XOP optimizations
301 --disable-fma3 disable FMA3 optimizations
302 --disable-fma4 disable FMA4 optimizations
303 --disable-avx2 disable AVX2 optimizations
304 --disable-armv5te disable armv5te optimizations
305 --disable-armv6 disable armv6 optimizations
306 --disable-armv6t2 disable armv6t2 optimizations
307 --disable-vfp disable VFP optimizations
308 --disable-neon disable NEON optimizations
309 --disable-inline-asm disable use of inline assembly
310 --disable-yasm disable use of nasm/yasm assembly
311
312 Developer options (useful when working on Libav itself):
313 --disable-debug disable debugging symbols
314 --enable-debug=LEVEL set the debug level [$debuglevel]
315 --disable-optimizations disable compiler optimizations
316 --enable-extra-warnings enable more compiler warnings
317 --samples=PATH location of test samples for FATE, if not set use
318 \$LIBAV_SAMPLES at make invocation time.
319 --enable-neon-clobber-test check NEON registers for clobbering (should be
320 used only for debugging purposes)
321 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
322 should be used only for debugging purposes)
323 --enable-random randomly enable/disable components
324 --disable-random
325 --enable-random=LIST randomly enable/disable specific components or
326 --disable-random=LIST component groups. LIST is a comma-separated list
327 of NAME[:PROB] entries where NAME is a component
328 (group) and PROB the probability associated with
329 NAME (default 0.5).
330 --random-seed=VALUE seed value for --enable/disable-random
331 --disable-valgrind-backtrace do not print a backtrace under Valgrind
332 (only applies to --disable-optimizations builds)
333
334 NOTE: Object files are built at the place where configure is launched.
335 EOF
336 exit 0
337 }
338
339 quotes='""'
340
341 log(){
342 echo "$@" >> $logfile
343 }
344
345 log_file(){
346 log BEGIN $1
347 i=1
348 while read line; do
349 printf '%5s %s\n' "${i}" "${line}"
350 i=$(($i+1))
351 done < $1 >> $logfile
352 log END $1
353 }
354
355 echolog(){
356 log "$@"
357 echo "$@"
358 }
359
360 warn(){
361 log "WARNING: $*"
362 WARNINGS="${WARNINGS}WARNING: $*\n"
363 }
364
365 die(){
366 echolog "$@"
367 cat <<EOF
368
369 If you think configure made a mistake, make sure you are using the latest
370 version from Git. If the latest version fails, report the problem to the
371 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
372 EOF
373 if disabled logging; then
374 cat <<EOF
375 Rerun configure with logging enabled (do not use --disable-logging), and
376 include the log this produces with your report.
377 EOF
378 else
379 cat <<EOF
380 Include the log file "$logfile" produced by configure as this will help
381 solving the problem.
382 EOF
383 fi
384 exit 1
385 }
386
387 # Avoid locale weirdness, besides we really just want to translate ASCII.
388 toupper(){
389 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
390 }
391
392 tolower(){
393 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
394 }
395
396 c_escape(){
397 echo "$*" | sed 's/["\\]/\\\0/g'
398 }
399
400 sh_quote(){
401 v=$(echo "$1" | sed "s/'/'\\\\''/g")
402 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
403 echo "$v"
404 }
405
406 cleanws(){
407 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
408 }
409
410 filter(){
411 pat=$1
412 shift
413 for v; do
414 eval "case $v in $pat) echo $v ;; esac"
415 done
416 }
417
418 filter_out(){
419 pat=$1
420 shift
421 for v; do
422 eval "case $v in $pat) ;; *) echo $v ;; esac"
423 done
424 }
425
426 map(){
427 m=$1
428 shift
429 for v; do eval $m; done
430 }
431
432 add_suffix(){
433 suffix=$1
434 shift
435 for v; do echo ${v}${suffix}; done
436 }
437
438 set_all(){
439 value=$1
440 shift
441 for var in $*; do
442 eval $var=$value
443 done
444 }
445
446 set_weak(){
447 value=$1
448 shift
449 for var; do
450 eval : \${$var:=$value}
451 done
452 }
453
454 sanitize_var_name(){
455 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
456 }
457
458 set_safe(){
459 var=$1
460 shift
461 eval $(sanitize_var_name "$var")='$*'
462 }
463
464 get_safe(){
465 eval echo \$$(sanitize_var_name "$1")
466 }
467
468 pushvar(){
469 for pvar in $*; do
470 eval level=\${${pvar}_level:=0}
471 eval ${pvar}_${level}="\$$pvar"
472 eval ${pvar}_level=$(($level+1))
473 done
474 }
475
476 popvar(){
477 for pvar in $*; do
478 eval level=\${${pvar}_level:-0}
479 test $level = 0 && continue
480 eval level=$(($level-1))
481 eval $pvar="\${${pvar}_${level}}"
482 eval ${pvar}_level=$level
483 eval unset ${pvar}_${level}
484 done
485 }
486
487 enable(){
488 set_all yes $*
489 }
490
491 disable(){
492 set_all no $*
493 }
494
495 enable_weak(){
496 set_weak yes $*
497 }
498
499 disable_weak(){
500 set_weak no $*
501 }
502
503 enable_safe(){
504 for var; do
505 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
506 done
507 }
508
509 disable_safe(){
510 for var; do
511 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
512 done
513 }
514
515 do_enable_deep(){
516 for var; do
517 enabled $var && continue
518 eval sel="\$${var}_select"
519 eval sgs="\$${var}_suggest"
520 pushvar var sgs
521 enable_deep $sel
522 popvar sgs
523 enable_deep_weak $sgs
524 popvar var
525 done
526 }
527
528 enable_deep(){
529 do_enable_deep $*
530 enable $*
531 }
532
533 enable_deep_weak(){
534 for var; do
535 disabled $var && continue
536 pushvar var
537 do_enable_deep $var
538 popvar var
539 enable_weak $var
540 done
541 }
542
543 enabled(){
544 test "${1#!}" = "$1" && op== || op=!=
545 eval test "x\$${1#!}" $op "xyes"
546 }
547
548 disabled(){
549 test "${1#!}" = "$1" && op== || op=!=
550 eval test "x\$${1#!}" $op "xno"
551 }
552
553 enabled_all(){
554 for opt; do
555 enabled $opt || return 1
556 done
557 }
558
559 disabled_all(){
560 for opt; do
561 disabled $opt || return 1
562 done
563 }
564
565 enabled_any(){
566 for opt; do
567 enabled $opt && return 0
568 done
569 }
570
571 disabled_any(){
572 for opt; do
573 disabled $opt && return 0
574 done
575 return 1
576 }
577
578 set_default(){
579 for opt; do
580 eval : \${$opt:=\$${opt}_default}
581 done
582 }
583
584 is_in(){
585 value=$1
586 shift
587 for var in $*; do
588 [ $var = $value ] && return 0
589 done
590 return 1
591 }
592
593 do_check_deps(){
594 for cfg; do
595 cfg="${cfg#!}"
596 enabled ${cfg}_checking && die "Circular dependency for $cfg."
597 disabled ${cfg}_checking && continue
598 enable ${cfg}_checking
599 append allopts $cfg
600
601 eval dep_all="\$${cfg}_deps"
602 eval dep_any="\$${cfg}_deps_any"
603 eval dep_sel="\$${cfg}_select"
604 eval dep_sgs="\$${cfg}_suggest"
605 eval dep_ifa="\$${cfg}_if"
606 eval dep_ifn="\$${cfg}_if_any"
607
608 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
609 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
610 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
611
612 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
613 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
614 enabled_all $dep_all || disable $cfg
615 enabled_any $dep_any || disable $cfg
616 disabled_any $dep_sel && disable $cfg
617
618 if enabled $cfg; then
619 enable_deep $dep_sel
620 enable_deep_weak $dep_sgs
621 fi
622
623 disable ${cfg}_checking
624 done
625 }
626
627 check_deps(){
628 unset allopts
629
630 do_check_deps "$@"
631
632 for cfg in $allopts; do
633 enabled $cfg || continue
634 eval dep_extralibs="\$${cfg}_extralibs"
635 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
636 done
637 }
638
639 print_config(){
640 pfx=$1
641 files=$2
642 shift 2
643 map 'eval echo "$v \${$v:-no}"' "$@" |
644 awk "BEGIN { split(\"$files\", files) }
645 {
646 c = \"$pfx\" toupper(\$1);
647 v = \$2;
648 sub(/yes/, 1, v);
649 sub(/no/, 0, v);
650 for (f in files) {
651 file = files[f];
652 if (file ~ /\\.h\$/) {
653 printf(\"#define %s %d\\n\", c, v) >>file;
654 } else if (file ~ /\\.asm\$/) {
655 printf(\"%%define %s %d\\n\", c, v) >>file;
656 } else if (file ~ /\\.mak\$/) {
657 n = -v ? \"\" : \"!\";
658 printf(\"%s%s=yes\\n\", n, c) >>file;
659 }
660 }
661 }"
662 }
663
664 print_enabled(){
665 suf=$1
666 shift
667 for v; do
668 enabled $v && printf "%s\n" ${v%$suf};
669 done
670 }
671
672 append(){
673 var=$1
674 shift
675 eval "$var=\"\$$var $*\""
676 }
677
678 prepend(){
679 var=$1
680 shift
681 eval "$var=\"$* \$$var\""
682 }
683
684 unique(){
685 var=$1
686 uniq_list=""
687 for tok in $(eval echo \$$var); do
688 uniq_list="$(filter_out $tok $uniq_list) $tok"
689 done
690 eval "$var=\"${uniq_list}\""
691 }
692
693 add_cppflags(){
694 append CPPFLAGS "$@"
695 }
696
697 add_cflags(){
698 append CFLAGS $($cflags_filter "$@")
699 }
700
701 add_asflags(){
702 append ASFLAGS $($asflags_filter "$@")
703 }
704
705 add_objcflags(){
706 append OBJCFLAGS $($objcflags_filter "$@")
707 }
708
709 add_ldflags(){
710 append LDFLAGS $($ldflags_filter "$@")
711 }
712
713 add_ldexeflags(){
714 append LDEXEFLAGS $($ldflags_filter "$@")
715 }
716
717 add_stripflags(){
718 append STRIPFLAGS "$@"
719 }
720
721 add_extralibs(){
722 prepend extralibs $($ldflags_filter "$@")
723 }
724
725 add_host_cppflags(){
726 append host_cppflags "$@"
727 }
728
729 add_host_cflags(){
730 append host_cflags $($host_cflags_filter "$@")
731 }
732
733 add_host_ldflags(){
734 append host_ldflags $($host_ldflags_filter "$@")
735 }
736
737 add_compat(){
738 append compat_objs $1
739 shift
740 map 'add_cppflags -D$v' "$@"
741 }
742
743 check_cmd(){
744 log "$@"
745 "$@" >> $logfile 2>&1
746 }
747
748 cc_o(){
749 eval printf '%s\\n' $CC_O
750 }
751
752 cc_e(){
753 eval printf '%s\\n' $CC_E
754 }
755
756 check_cc(){
757 log check_cc "$@"
758 cat > $TMPC
759 log_file $TMPC
760 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
761 }
762
763 check_objcc(){
764 log check_objcc "$@"
765 cat > $TMPC
766 log_file $TMPC
767 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
768 }
769
770 check_cpp(){
771 log check_cpp "$@"
772 cat > $TMPC
773 log_file $TMPC
774 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
775 }
776
777 as_o(){
778 eval printf '%s\\n' $AS_O
779 }
780
781 check_as(){
782 log check_as "$@"
783 cat > $TMPS
784 log_file $TMPS
785 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
786 }
787
788 check_inline_asm(){
789 log check_inline_asm "$@"
790 name="$1"
791 code="$2"
792 shift 2
793 disable $name
794 check_cc "$@" <<EOF && enable $name
795 void foo(void){ __asm__ volatile($code); }
796 EOF
797 }
798
799 check_insn(){
800 log check_insn "$@"
801 check_inline_asm ${1}_inline "\"$2\""
802 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
803 }
804
805 check_yasm(){
806 log check_yasm "$@"
807 echo "$1" > $TMPS
808 log_file $TMPS
809 shift 1
810 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
811 }
812
813 ld_o(){
814 eval printf '%s\\n' $LD_O
815 }
816
817 check_ld(){
818 log check_ld "$@"
819 flags=$(filter_out '-l*' "$@")
820 libs=$(filter '-l*' "$@")
821 check_cc $($cflags_filter $flags) || return
822 flags=$($ldflags_filter $flags)
823 libs=$($ldflags_filter $libs)
824 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
825 }
826
827 print_include(){
828 hdr=$1
829 test "${hdr%.h}" = "${hdr}" &&
830 echo "#include $hdr" ||
831 echo "#include <$hdr>"
832 }
833
834 check_code(){
835 log check_code "$@"
836 check=$1
837 headers=$2
838 code=$3
839 shift 3
840 {
841 for hdr in $headers; do
842 print_include $hdr
843 done
844 echo "int main(void) { $code; return 0; }"
845 } | check_$check "$@"
846 }
847
848 check_cppflags(){
849 log check_cppflags "$@"
850 check_cc "$@" <<EOF && append CPPFLAGS "$@"
851 int x;
852 EOF
853 }
854
855 test_cflags(){
856 log test_cflags "$@"
857 set -- $($cflags_filter "$@")
858 check_cc "$@" <<EOF
859 int x;
860 EOF
861 }
862
863 check_cflags(){
864 log check_cflags "$@"
865 test_cflags "$@" && add_cflags "$@"
866 }
867
868 test_objcflags(){
869 log test_cflags "$@"
870 set -- $($cflags_filter "$@")
871 check_objcc "$@" <<EOF
872 int x;
873 EOF
874 }
875
876 check_objcflags(){
877 log check_cflags "$@"
878 test_objcflags "$@" && add_objcflags "$@"
879 }
880
881 test_ldflags(){
882 log test_ldflags "$@"
883 check_ld "$@" <<EOF
884 int main(void){ return 0; }
885 EOF
886 }
887
888 check_ldflags(){
889 log check_ldflags "$@"
890 test_ldflags "$@" && add_ldflags "$@"
891 }
892
893 test_stripflags(){
894 log test_stripflags "$@"
895 # call check_cc to get a fresh TMPO
896 check_cc <<EOF
897 int main(void) { return 0; }
898 EOF
899 check_cmd $strip $STRIPFLAGS "$@" $TMPO
900 }
901
902 check_stripflags(){
903 log check_stripflags "$@"
904 test_stripflags "$@" && add_stripflags "$@"
905 }
906
907 check_header(){
908 log check_header "$@"
909 header=$1
910 shift
911 disable_safe $header
912 check_cpp "$@" <<EOF && enable_safe $header
913 #include <$header>
914 int x;
915 EOF
916 }
917
918 check_func(){
919 log check_func "$@"
920 func=$1
921 shift
922 disable $func
923 check_ld "$@" <<EOF && enable $func
924 extern int $func();
925 int main(void){ $func(); }
926 EOF
927 }
928
929 check_mathfunc(){
930 log check_mathfunc "$@"
931 func=$1
932 narg=$2
933 shift 2
934 test $narg = 2 && args="f, g" || args="f"
935 disable $func
936 check_ld "$@" <<EOF && enable $func
937 #include <math.h>
938 float foo(float f, float g) { return $func($args); }
939 int main(void){ return 0; }
940 EOF
941 }
942
943 check_func_headers(){
944 log check_func_headers "$@"
945 headers=$1
946 funcs=$2
947 shift 2
948 {
949 for hdr in $headers; do
950 print_include $hdr
951 done
952 for func in $funcs; do
953 echo "long check_$func(void) { return (long) $func; }"
954 done
955 echo "int main(void) { return 0; }"
956 } | check_ld "$@" && enable $funcs && enable_safe $headers
957 }
958
959 check_cpp_condition(){
960 log check_cpp_condition "$@"
961 header=$1
962 condition=$2
963 shift 2
964 check_cpp "$@" <<EOF
965 #include <$header>
966 #if !($condition)
967 #error "unsatisfied condition: $condition"
968 #endif
969 EOF
970 }
971
972 check_lib(){
973 log check_lib "$@"
974 header="$1"
975 func="$2"
976 shift 2
977 check_header $header && check_func $func "$@" && add_extralibs "$@"
978 }
979
980 check_lib2(){
981 log check_lib2 "$@"
982 headers="$1"
983 funcs="$2"
984 shift 2
985 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
986 }
987
988 check_pkg_config(){
989 log check_pkg_config "$@"
990 pkg="$1"
991 headers="$2"
992 funcs="$3"
993 shift 3
994 check_cmd $pkg_config --exists --print-errors $pkg || return
995 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
996 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
997 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
998 set_safe "${pkg}_cflags" $pkg_cflags &&
999 set_safe "${pkg}_libs" $pkg_libs
1000 }
1001
1002 check_exec(){
1003 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1004 }
1005
1006 check_exec_crash(){
1007 code=$(cat)
1008
1009 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1010 # are safe but may not be available everywhere. Thus we use
1011 # raise(SIGTERM) instead. The check is run in a subshell so we
1012 # can redirect the "Terminated" message from the shell. SIGBUS
1013 # is not defined by standard C so it is used conditionally.
1014
1015 (check_exec "$@") >> $logfile 2>&1 <<EOF
1016 #include <signal.h>
1017 static void sighandler(int sig){
1018 raise(SIGTERM);
1019 }
1020 int foo(void){
1021 $code
1022 }
1023 int (*func_ptr)(void) = foo;
1024 int main(void){
1025 signal(SIGILL, sighandler);
1026 signal(SIGFPE, sighandler);
1027 signal(SIGSEGV, sighandler);
1028 #ifdef SIGBUS
1029 signal(SIGBUS, sighandler);
1030 #endif
1031 return func_ptr();
1032 }
1033 EOF
1034 }
1035
1036 check_type(){
1037 log check_type "$@"
1038 headers=$1
1039 type=$2
1040 shift 2
1041 disable_safe "$type"
1042 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1043 }
1044
1045 check_struct(){
1046 log check_struct "$@"
1047 headers=$1
1048 struct=$2
1049 member=$3
1050 shift 3
1051 disable_safe "${struct}_${member}"
1052 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1053 enable_safe "${struct}_${member}"
1054 }
1055
1056 check_builtin(){
1057 log check_builtin "$@"
1058 name=$1
1059 headers=$2
1060 builtin=$3
1061 shift 3
1062 disable "$name"
1063 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1064 }
1065
1066 check_compile_assert(){
1067 log check_compile_assert "$@"
1068 name=$1
1069 headers=$2
1070 condition=$3
1071 shift 3
1072 disable "$name"
1073 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1074 }
1075
1076 require(){
1077 name="$1"
1078 header="$2"
1079 func="$3"
1080 shift 3
1081 check_lib $header $func "$@" || die "ERROR: $name not found"
1082 }
1083
1084 require2(){
1085 name="$1"
1086 headers="$2"
1087 func="$3"
1088 shift 3
1089 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1090 }
1091
1092 require_pkg_config(){
1093 pkg="$1"
1094 check_pkg_config "$@" || die "ERROR: $pkg not found"
1095 add_cflags $(get_safe "${pkg}_cflags")
1096 add_extralibs $(get_safe "${pkg}_libs")
1097 }
1098
1099 hostcc_e(){
1100 eval printf '%s\\n' $HOSTCC_E
1101 }
1102
1103 hostcc_o(){
1104 eval printf '%s\\n' $HOSTCC_O
1105 }
1106
1107 check_host_cc(){
1108 log check_host_cc "$@"
1109 cat > $TMPC
1110 log_file $TMPC
1111 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1112 }
1113
1114 check_host_cpp(){
1115 log check_host_cpp "$@"
1116 cat > $TMPC
1117 log_file $TMPC
1118 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1119 }
1120
1121 check_host_cppflags(){
1122 log check_host_cppflags "$@"
1123 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1124 int x;
1125 EOF
1126 }
1127
1128 check_host_cflags(){
1129 log check_host_cflags "$@"
1130 set -- $($host_cflags_filter "$@")
1131 check_host_cc "$@" <<EOF && append host_cflags "$@"
1132 int x;
1133 EOF
1134 }
1135
1136 check_host_cpp_condition(){
1137 log check_host_cpp_condition "$@"
1138 header=$1
1139 condition=$2
1140 shift 2
1141 check_host_cpp "$@" <<EOF
1142 #include <$header>
1143 #if !($condition)
1144 #error "unsatisfied condition: $condition"
1145 #endif
1146 EOF
1147 }
1148
1149 apply(){
1150 file=$1
1151 shift
1152 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1153 }
1154
1155 cp_if_changed(){
1156 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1157 mkdir -p "$(dirname $2)"
1158 $cp_f "$1" "$2"
1159 }
1160
1161 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1162 # system-dependent things.
1163
1164 AVCODEC_COMPONENTS="
1165 bsfs
1166 decoders
1167 encoders
1168 hwaccels
1169 parsers
1170 "
1171
1172 AVDEVICE_COMPONENTS="
1173 indevs
1174 outdevs
1175 "
1176 AVFILTER_COMPONENTS="
1177 filters
1178 "
1179 AVFORMAT_COMPONENTS="
1180 demuxers
1181 muxers
1182 protocols
1183 "
1184
1185 AVRESAMPLE_COMPONENTS=""
1186 AVUTIL_COMPONENTS=""
1187
1188 COMPONENT_LIST="
1189 $AVCODEC_COMPONENTS
1190 $AVDEVICE_COMPONENTS
1191 $AVFILTER_COMPONENTS
1192 $AVFORMAT_COMPONENTS
1193 $AVRESAMPLE_COMPONENTS
1194 $AVUTIL_COMPONENTS
1195 "
1196
1197 EXAMPLE_LIST="
1198 avcodec_example
1199 filter_audio_example
1200 metadata_example
1201 output_example
1202 qsvdec_example
1203 transcode_aac_example
1204 "
1205
1206 EXTERNAL_LIBRARY_LIST="
1207 avisynth
1208 bzlib
1209 cuda
1210 frei0r
1211 gnutls
1212 libbs2b
1213 libcdio
1214 libdc1394
1215 libdcadec
1216 libfaac
1217 libfdk_aac
1218 libfontconfig
1219 libfreetype
1220 libgsm
1221 libilbc
1222 libkvazaar
1223 libmfx
1224 libmp3lame
1225 libopencore_amrnb
1226 libopencore_amrwb
1227 libopencv
1228 libopenh264
1229 libopenjpeg
1230 libopus
1231 libpulse
1232 librtmp
1233 libschroedinger
1234 libsnappy
1235 libspeex
1236 libtheora
1237 libtwolame
1238 libvo_aacenc
1239 libvo_amrwbenc
1240 libvorbis
1241 libvpx
1242 libwavpack
1243 libwebp
1244 libx264
1245 libx265
1246 libxavs
1247 libxcb
1248 libxcb_shm
1249 libxcb_xfixes
1250 libxvid
1251 mmal
1252 nvenc
1253 openssl
1254 x11grab
1255 zlib
1256 "
1257
1258 FEATURE_LIST="
1259 gray
1260 hardcoded_tables
1261 runtime_cpudetect
1262 safe_bitstream_reader
1263 shared
1264 small
1265 sram
1266 static
1267 swscale_alpha
1268 "
1269
1270 HWACCEL_LIST="
1271 d3d11va
1272 dxva2
1273 vaapi
1274 vda
1275 vdpau
1276 "
1277
1278 LIBRARY_LIST="
1279 avcodec
1280 avdevice
1281 avfilter
1282 avformat
1283 avresample
1284 avutil
1285 swscale
1286 "
1287
1288 LICENSE_LIST="
1289 gpl
1290 nonfree
1291 version3
1292 "
1293
1294 PROGRAM_LIST="
1295 avconv
1296 avplay
1297 avprobe
1298 "
1299
1300 SUBSYSTEM_LIST="
1301 dct
1302 doc
1303 error_resilience
1304 faan
1305 fft
1306 lsp
1307 lzo
1308 mdct
1309 network
1310 rdft
1311 "
1312
1313 CONFIG_LIST="
1314 $COMPONENT_LIST
1315 $EXAMPLE_LIST
1316 $EXTERNAL_LIBRARY_LIST
1317 $FEATURE_LIST
1318 $HWACCEL_LIST
1319 $LICENSE_LIST
1320 $LIBRARY_LIST
1321 $PROGRAM_LIST
1322 $SUBSYSTEM_LIST
1323 memalign_hack
1324 neon_clobber_test
1325 pic
1326 pod2man
1327 texi2html
1328 thumb
1329 valgrind_backtrace
1330 xmm_clobber_test
1331 "
1332
1333 THREADS_LIST="
1334 pthreads
1335 w32threads
1336 "
1337
1338 ATOMICS_LIST="
1339 atomics_gcc
1340 atomics_suncc
1341 atomics_win32
1342 "
1343
1344 ARCH_LIST="
1345 aarch64
1346 alpha
1347 arm
1348 avr32
1349 avr32_ap
1350 avr32_uc
1351 bfin
1352 ia64
1353 m68k
1354 mips
1355 mips64
1356 parisc
1357 ppc
1358 ppc64
1359 s390
1360 sh4
1361 sparc
1362 sparc64
1363 tilegx
1364 tilepro
1365 tomi
1366 x86
1367 x86_32
1368 x86_64
1369 "
1370
1371 ARCH_EXT_LIST_ARM="
1372 armv5te
1373 armv6
1374 armv6t2
1375 armv8
1376 neon
1377 vfp
1378 vfpv3
1379 "
1380
1381 ARCH_EXT_LIST_X86_SIMD="
1382 amd3dnow
1383 amd3dnowext
1384 avx
1385 avx2
1386 fma3
1387 fma4
1388 mmx
1389 mmxext
1390 sse
1391 sse2
1392 sse3
1393 sse4
1394 sse42
1395 ssse3
1396 xop
1397 "
1398
1399 ARCH_EXT_LIST_PPC="
1400 altivec
1401 dcbzl
1402 ldbrx
1403 power8
1404 ppc4xx
1405 vsx
1406 "
1407
1408 ARCH_EXT_LIST_X86="
1409 $ARCH_EXT_LIST_X86_SIMD
1410 cpunop
1411 i686
1412 "
1413
1414 ARCH_EXT_LIST_MIPS="
1415 loongson
1416 mips32r1
1417 mips64r1
1418 mips32r2
1419 mips64r2
1420 mips32r6
1421 mips64r6
1422 "
1423
1424 ARCH_EXT_LIST="
1425 $ARCH_EXT_LIST_ARM
1426 $ARCH_EXT_LIST_MIPS
1427 $ARCH_EXT_LIST_PPC
1428 $ARCH_EXT_LIST_X86
1429 vis
1430 "
1431
1432 ARCH_FEATURES="
1433 aligned_stack
1434 fast_64bit
1435 fast_clz
1436 fast_cmov
1437 local_aligned_8
1438 local_aligned_16
1439 simd_align_16
1440 "
1441
1442 BUILTIN_LIST="
1443 atomic_cas_ptr
1444 machine_rw_barrier
1445 MemoryBarrier
1446 mm_empty
1447 rdtsc
1448 sync_val_compare_and_swap
1449 "
1450 HAVE_LIST_CMDLINE="
1451 inline_asm
1452 symver
1453 yasm
1454 "
1455
1456 HAVE_LIST_PUB="
1457 bigendian
1458 fast_unaligned
1459 "
1460
1461 HEADERS_LIST="
1462 AVFoundation_AVFoundation_h
1463 alsa_asoundlib_h
1464 altivec_h
1465 arpa_inet_h
1466 cdio_paranoia_h
1467 cdio_paranoia_paranoia_h
1468 dev_bktr_ioctl_bt848_h
1469 dev_bktr_ioctl_meteor_h
1470 dev_ic_bt8xx_h
1471 dev_video_bktr_ioctl_bt848_h
1472 dev_video_meteor_ioctl_meteor_h
1473 direct_h
1474 dlfcn_h
1475 d3d11_h
1476 dxva_h
1477 gsm_h
1478 io_h
1479 mach_mach_time_h
1480 machine_ioctl_bt848_h
1481 machine_ioctl_meteor_h
1482 malloc_h
1483 poll_h
1484 sndio_h
1485 soundcard_h
1486 sys_mman_h
1487 sys_param_h
1488 sys_resource_h
1489 sys_select_h
1490 sys_soundcard_h
1491 sys_time_h
1492 sys_un_h
1493 sys_videoio_h
1494 unistd_h
1495 valgrind_valgrind_h
1496 windows_h
1497 winsock2_h
1498 "
1499
1500 INTRINSICS_LIST="
1501 intrinsics_neon
1502 "
1503
1504 MATH_FUNCS="
1505 atanf
1506 atan2f
1507 cbrtf
1508 cosf
1509 exp2
1510 exp2f
1511 expf
1512 isinf
1513 isnan
1514 ldexpf
1515 llrint
1516 llrintf
1517 log2
1518 log2f
1519 log10f
1520 lrint
1521 lrintf
1522 powf
1523 rint
1524 round
1525 roundf
1526 sinf
1527 trunc
1528 truncf
1529 "
1530
1531 SYSTEM_FUNCS="
1532 aligned_malloc
1533 clock_gettime
1534 closesocket
1535 CommandLineToArgvW
1536 CoTaskMemFree
1537 CryptGenRandom
1538 dlopen
1539 fcntl
1540 flt_lim
1541 fork
1542 getaddrinfo
1543 gethrtime
1544 getopt
1545 GetProcessAffinityMask
1546 GetProcessMemoryInfo
1547 GetProcessTimes
1548 getrusage
1549 GetSystemTimeAsFileTime
1550 gettimeofday
1551 gmtime_r
1552 inet_aton
1553 isatty
1554 jack_port_get_latency_range
1555 LoadLibrary
1556 localtime_r
1557 mach_absolute_time
1558 MapViewOfFile
1559 memalign
1560 mkstemp
1561 mmap
1562 mprotect
1563 nanosleep
1564 posix_memalign
1565 sched_getaffinity
1566 SetConsoleTextAttribute
1567 setmode
1568 setrlimit
1569 Sleep
1570 strerror_r
1571 sysconf
1572 sysctl
1573 usleep
1574 VirtualAlloc
1575 "
1576
1577 TOOLCHAIN_FEATURES="
1578 as_dn_directive
1579 as_func
1580 as_object_arch
1581 asm_mod_q
1582 attribute_may_alias
1583 attribute_packed
1584 ebp_available
1585 ebx_available
1586 gnu_as
1587 ibm_asm
1588 inline_asm_labels
1589 pragma_deprecated
1590 symver_asm_label
1591 symver_gnu_asm
1592 vfp_args
1593 xform_asm
1594 xmm_clobbers
1595 "
1596
1597 TYPES_LIST="
1598 CONDITION_VARIABLE_Ptr
1599 socklen_t
1600 struct_addrinfo
1601 struct_group_source_req
1602 struct_ip_mreq_source
1603 struct_ipv6_mreq
1604 struct_pollfd
1605 struct_rusage_ru_maxrss
1606 struct_sockaddr_in6
1607 struct_sockaddr_sa_len
1608 struct_sockaddr_storage
1609 struct_v4l2_frmivalenum_discrete
1610 "
1611
1612 HAVE_LIST="
1613 $ARCH_EXT_LIST
1614 $(add_suffix _external $ARCH_EXT_LIST)
1615 $(add_suffix _inline $ARCH_EXT_LIST)
1616 $ARCH_FEATURES
1617 $ATOMICS_LIST
1618 $BUILTIN_LIST
1619 $HAVE_LIST_CMDLINE
1620 $HAVE_LIST_PUB
1621 $HEADERS_LIST
1622 $INTRINSICS_LIST
1623 $MATH_FUNCS
1624 $SYSTEM_FUNCS
1625 $THREADS_LIST
1626 $TOOLCHAIN_FEATURES
1627 $TYPES_LIST
1628 atomics_native
1629 dos_paths
1630 dxva2_lib
1631 libc_msvcrt
1632 libdc1394_1
1633 libdc1394_2
1634 sdl
1635 section_data_rel_ro
1636 threads
1637 vaapi_x11
1638 vdpau_x11
1639 xlib
1640 "
1641
1642 # options emitted with CONFIG_ prefix but not available on the command line
1643 CONFIG_EXTRA="
1644 aandcttables
1645 ac3dsp
1646 audio_frame_queue
1647 audiodsp
1648 blockdsp
1649 bswapdsp
1650 cabac
1651 dirac_parse
1652 dvprofile
1653 faandct
1654 faanidct
1655 fdctdsp
1656 flacdsp
1657 fmtconvert
1658 g722dsp
1659 gcrypt
1660 gmp
1661 golomb
1662 gplv3
1663 h263dsp
1664 h264chroma
1665 h264dsp
1666 h264pred
1667 h264qpel
1668 hpeldsp
1669 huffman
1670 huffyuvdsp
1671 huffyuvencdsp
1672 idctdsp
1673 iirfilter
1674 imdct15
1675 intrax8
1676 iso_media
1677 ividsp
1678 jpegtables
1679 libx262
1680 lgplv3
1681 lpc
1682 lzf
1683 me_cmp
1684 mpeg_er
1685 mpegaudio
1686 mpegaudiodsp
1687 mpegvideo
1688 mpegvideoenc
1689 mss34dsp
1690 pixblockdsp
1691 qpeldsp
1692 qsv
1693 qsvdec
1694 qsvenc
1695 rangecoder
1696 riffdec
1697 riffenc
1698 rtpdec
1699 rtpenc_chain
1700 rv34dsp
1701 sinewin
1702 snappy
1703 startcode
1704 texturedsp
1705 texturedspenc
1706 tpeldsp
1707 vc1dsp
1708 videodsp
1709 vp3dsp
1710 vp56dsp
1711 vp8dsp
1712 wma_freqs
1713 wmv2dsp
1714 "
1715
1716 CMDLINE_SELECT="
1717 $ARCH_EXT_LIST
1718 $CONFIG_LIST
1719 $HAVE_LIST_CMDLINE
1720 $THREADS_LIST
1721 asm
1722 cross_compile
1723 debug
1724 extra_warnings
1725 logging
1726 lto
1727 optimizations
1728 rpath
1729 "
1730
1731 PATHS_LIST="
1732 bindir
1733 datadir
1734 docdir
1735 incdir
1736 libdir
1737 mandir
1738 prefix
1739 shlibdir
1740 "
1741
1742 CMDLINE_SET="
1743 $PATHS_LIST
1744 ar
1745 arch
1746 as
1747 build_suffix
1748 cc
1749 objcc
1750 cpu
1751 cross_prefix
1752 custom_allocator
1753 dep_cc
1754 env
1755 extra_version
1756 host_cc
1757 host_cflags
1758 host_ld
1759 host_ldflags
1760 host_libs
1761 host_os
1762 ld
1763 logfile
1764 malloc_prefix
1765 nm
1766 optflags
1767 pkg_config
1768 pkg_config_flags
1769 random_seed
1770 samples
1771 sysinclude
1772 sysroot
1773 target_exec
1774 target_os
1775 target_path
1776 target_samples
1777 toolchain
1778 "
1779
1780 CMDLINE_APPEND="
1781 extra_cflags
1782 extra_objcflags
1783 host_cppflags
1784 "
1785
1786 # code dependency declarations
1787
1788 # architecture extensions
1789
1790 armv5te_deps="arm"
1791 armv6_deps="arm"
1792 armv6t2_deps="arm"
1793 armv8_deps="aarch64"
1794 neon_deps_any="aarch64 arm"
1795 intrinsics_neon_deps="neon"
1796 vfp_deps_any="aarch64 arm"
1797 vfpv3_deps="vfp"
1798
1799 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1800
1801 altivec_deps="ppc"
1802 ppc4xx_deps="ppc"
1803 vsx_deps="altivec"
1804 power8_deps="vsx"
1805
1806 cpunop_deps="i686"
1807 x86_64_select="i686"
1808 x86_64_suggest="fast_cmov"
1809
1810 amd3dnow_deps="mmx"
1811 amd3dnowext_deps="amd3dnow"
1812 i686_deps="x86"
1813 mmx_deps="x86"
1814 mmxext_deps="mmx"
1815 sse_deps="mmxext"
1816 sse2_deps="sse"
1817 sse3_deps="sse2"
1818 ssse3_deps="sse3"
1819 sse4_deps="ssse3"
1820 sse42_deps="sse4"
1821 avx_deps="sse42"
1822 xop_deps="avx"
1823 fma3_deps="avx"
1824 fma4_deps="avx"
1825 avx2_deps="avx"
1826
1827 mmx_external_deps="yasm"
1828 mmx_inline_deps="inline_asm"
1829 mmx_suggest="mmx_external mmx_inline"
1830
1831 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1832 eval dep=\$${ext}_deps
1833 eval ${ext}_external_deps='"${dep}_external"'
1834 eval ${ext}_inline_deps='"${dep}_inline"'
1835 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1836 done
1837
1838 aligned_stack_if_any="aarch64 ppc x86"
1839 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1840 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1841 fast_unaligned_if_any="aarch64 ppc x86"
1842 simd_align_16_if_any="altivec neon sse"
1843
1844 # system capabilities
1845 symver_if_any="symver_asm_label symver_gnu_asm"
1846 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1847
1848 # threading support
1849 atomics_gcc_if="sync_val_compare_and_swap"
1850 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1851 atomics_win32_if="MemoryBarrier"
1852 atomics_native_if_any="$ATOMICS_LIST"
1853 w32threads_deps="atomics_native"
1854 threads_if_any="$THREADS_LIST"
1855
1856 # subsystems
1857 dct_select="rdft"
1858 dirac_parse_select="golomb"
1859 error_resilience_select="me_cmp"
1860 faandct_deps="faan fdctdsp"
1861 faanidct_deps="faan idctdsp"
1862 h264dsp_select="startcode"
1863 mdct_select="fft"
1864 rdft_select="fft"
1865 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1866 mpeg_er_select="error_resilience"
1867 mpegaudio_select="mpegaudiodsp"
1868 mpegaudiodsp_select="dct"
1869 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1870 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1871 nvenc_deps_any="dlopen LoadLibrary"
1872 nvenc_extralibs='$ldl'
1873 qsvdec_select="qsv"
1874 qsvenc_select="qsv"
1875 vc1dsp_select="h264chroma qpeldsp startcode"
1876
1877 # decoders / encoders
1878 aac_decoder_select="imdct15 mdct sinewin"
1879 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1880 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1881 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1882 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1883 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1884 adpcm_g722_decoder_select="g722dsp"
1885 adpcm_g722_encoder_select="g722dsp"
1886 aic_decoder_select="golomb idctdsp"
1887 alac_encoder_select="lpc"
1888 als_decoder_select="bswapdsp"
1889 amrnb_decoder_select="lsp"
1890 amrwb_decoder_select="lsp"
1891 amv_decoder_select="sp5x_decoder"
1892 ape_decoder_select="bswapdsp"
1893 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1894 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1895 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1896 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1897 atrac1_decoder_select="mdct sinewin"
1898 atrac3_decoder_select="mdct"
1899 atrac3p_decoder_select="mdct sinewin"
1900 bink_decoder_select="blockdsp hpeldsp"
1901 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1902 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1903 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1904 cllc_decoder_select="bswapdsp"
1905 comfortnoise_encoder_select="lpc"
1906 cook_decoder_select="audiodsp mdct sinewin"
1907 cscd_decoder_select="lzo"
1908 cscd_decoder_suggest="zlib"
1909 dca_decoder_select="fmtconvert mdct"
1910 dds_decoder_select="texturedsp"
1911 dnxhd_decoder_select="blockdsp idctdsp"
1912 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1913 dvvideo_decoder_select="dvprofile idctdsp"
1914 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1915 dxa_decoder_deps="zlib"
1916 dxv_decoder_select="lzf texturedsp"
1917 eac3_decoder_select="ac3_decoder"
1918 eac3_encoder_select="ac3_encoder"
1919 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1920 eatgq_decoder_select="aandcttables idctdsp"
1921 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1922 exr_decoder_deps="zlib"
1923 ffv1_decoder_select="golomb rangecoder"
1924 ffv1_encoder_select="rangecoder"
1925 ffvhuff_decoder_select="huffyuv_decoder"
1926 ffvhuff_encoder_select="huffyuv_encoder"
1927 fic_decoder_select="golomb"
1928 flac_decoder_select="flacdsp golomb"
1929 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1930 flashsv_decoder_deps="zlib"
1931 flashsv_encoder_deps="zlib"
1932 flashsv2_decoder_deps="zlib"
1933 flv_decoder_select="h263_decoder"
1934 flv_encoder_select="h263_encoder"
1935 fourxm_decoder_select="blockdsp bswapdsp"
1936 fraps_decoder_select="bswapdsp huffman"
1937 g2m_decoder_deps="zlib"
1938 g2m_decoder_select="blockdsp idctdsp jpegtables"
1939 h261_decoder_select="mpeg_er mpegvideo"
1940 h261_encoder_select="aandcttables mpegvideoenc"
1941 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1942 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1943 h263i_decoder_select="h263_decoder"
1944 h263p_encoder_select="h263_encoder"
1945 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1946 h264_decoder_suggest="error_resilience"
1947 h264_nvenc_encoder_deps="nvenc"
1948 h264_qsv_decoder_deps="libmfx"
1949 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1950 h264_qsv_encoder_deps="libmfx"
1951 h264_qsv_encoder_select="qsvenc"
1952 hap_decoder_select="snappy texturedsp"
1953 hap_encoder_deps="libsnappy"
1954 hap_encoder_select="texturedspenc"
1955 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1956 hevc_nvenc_encoder_deps="nvenc"
1957 hevc_qsv_encoder_deps="libmfx"
1958 hevc_qsv_decoder_deps="libmfx"
1959 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1960 hevc_qsv_encoder_select="qsvenc"
1961 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1962 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1963 iac_decoder_select="imc_decoder"
1964 imc_decoder_select="bswapdsp fft mdct sinewin"
1965 indeo3_decoder_select="hpeldsp"
1966 indeo4_decoder_select="ividsp"
1967 indeo5_decoder_select="ividsp"
1968 interplay_video_decoder_select="hpeldsp"
1969 jpegls_decoder_select="golomb mjpeg_decoder"
1970 jpegls_encoder_select="golomb"
1971 jv_decoder_select="blockdsp"
1972 lagarith_decoder_select="huffyuvdsp"
1973 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1974 loco_decoder_select="golomb"
1975 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1976 metasound_decoder_select="lsp mdct sinewin"
1977 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1978 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1979 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1980 mjpegb_decoder_select="mjpeg_decoder"
1981 mlp_decoder_select="mlp_parser"
1982 motionpixels_decoder_select="bswapdsp"
1983 mp1_decoder_select="mpegaudio"
1984 mp1float_decoder_select="mpegaudio"
1985 mp2_decoder_select="mpegaudio"
1986 mp2float_decoder_select="mpegaudio"
1987 mp3_decoder_select="mpegaudio"
1988 mp3adu_decoder_select="mpegaudio"
1989 mp3adufloat_decoder_select="mpegaudio"
1990 mp3float_decoder_select="mpegaudio"
1991 mp3on4_decoder_select="mpegaudio"
1992 mp3on4float_decoder_select="mpegaudio"
1993 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1994 mpc8_decoder_select="mpegaudiodsp"
1995 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1996 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1997 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1998 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1999 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2000 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2001 mpeg2_qsv_decoder_deps="libmfx"
2002 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2003 mpeg2_qsv_encoder_deps="libmfx"
2004 mpeg2_qsv_encoder_select="qsvenc"
2005 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2006 mpeg4_encoder_select="h263_encoder"
2007 msa1_decoder_select="mss34dsp"
2008 msmpeg4v1_decoder_select="h263_decoder"
2009 msmpeg4v2_decoder_select="h263_decoder"
2010 msmpeg4v2_encoder_select="h263_encoder"
2011 msmpeg4v3_decoder_select="h263_decoder"
2012 msmpeg4v3_encoder_select="h263_encoder"
2013 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2014 mts2_decoder_select="mss34dsp"
2015 mxpeg_decoder_select="mjpeg_decoder"
2016 nellymoser_decoder_select="mdct sinewin"
2017 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2018 nuv_decoder_select="idctdsp lzo"
2019 nvenc_h264_encoder_deps="nvenc"
2020 nvenc_hevc_encoder_deps="nvenc"
2021 on2avc_decoder_select="mdct"
2022 opus_decoder_deps="avresample"
2023 opus_decoder_select="imdct15"
2024 png_decoder_deps="zlib"
2025 png_encoder_deps="zlib"
2026 png_encoder_select="huffyuvencdsp"
2027 prores_decoder_select="idctdsp"
2028 prores_encoder_select="fdctdsp"
2029 qcelp_decoder_select="lsp"
2030 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2031 ra_144_encoder_select="audio_frame_queue lpc"
2032 ralf_decoder_select="golomb"
2033 rscc_decoder_deps="zlib"
2034 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2035 rv10_encoder_select="h263_encoder"
2036 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2037 rv20_encoder_select="h263_encoder"
2038 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2039 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2040 screenpresso_decoder_deps="zlib"
2041 shorten_decoder_select="golomb"
2042 sipr_decoder_select="lsp"
2043 sp5x_decoder_select="mjpeg_decoder"
2044 svq1_decoder_select="hpeldsp"
2045 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2046 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2047 svq3_decoder_suggest="zlib"
2048 tak_decoder_select="audiodsp"
2049 tdsc_decoder_deps="zlib"
2050 tdsc_decoder_select="mjpeg_decoder"
2051 theora_decoder_select="vp3_decoder"
2052 thp_decoder_select="mjpeg_decoder"
2053 tiff_decoder_suggest="zlib"
2054 tiff_encoder_suggest="zlib"
2055 truehd_decoder_select="mlp_decoder"
2056 truemotion2_decoder_select="bswapdsp"
2057 truespeech_decoder_select="bswapdsp"
2058 tscc_decoder_deps="zlib"
2059 txd_decoder_select="texturedsp"
2060 twinvq_decoder_select="mdct lsp sinewin"
2061 utvideo_decoder_select="bswapdsp"
2062 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2063 vble_decoder_select="huffyuvdsp"
2064 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2065 vc1image_decoder_select="vc1_decoder"
2066 vorbis_decoder_select="mdct"
2067 vorbis_encoder_select="mdct"
2068 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2069 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2070 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2071 vp6a_decoder_select="vp6_decoder"
2072 vp6f_decoder_select="vp6_decoder"
2073 vp7_decoder_select="h264pred videodsp vp8dsp"
2074 vp8_decoder_select="h264pred videodsp vp8dsp"
2075 vp9_decoder_select="videodsp"
2076 webp_decoder_select="vp8_decoder"
2077 wmapro_decoder_select="mdct sinewin wma_freqs"
2078 wmav1_decoder_select="mdct sinewin wma_freqs"
2079 wmav1_encoder_select="mdct sinewin wma_freqs"
2080 wmav2_decoder_select="mdct sinewin wma_freqs"
2081 wmav2_encoder_select="mdct sinewin wma_freqs"
2082 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2083 wmv1_decoder_select="h263_decoder"
2084 wmv1_encoder_select="h263_encoder"
2085 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2086 wmv2_encoder_select="h263_encoder wmv2dsp"
2087 wmv3_decoder_select="vc1_decoder"
2088 wmv3image_decoder_select="wmv3_decoder"
2089 zerocodec_decoder_deps="zlib"
2090 zlib_decoder_deps="zlib"
2091 zlib_encoder_deps="zlib"
2092 zmbv_decoder_deps="zlib"
2093 zmbv_encoder_deps="zlib"
2094
2095 # hardware accelerators
2096 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2097 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2098 vaapi_deps="va_va_h"
2099 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2100 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2101 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2102
2103 h263_vaapi_hwaccel_deps="vaapi"
2104 h263_vaapi_hwaccel_select="h263_decoder"
2105 h264_d3d11va_hwaccel_deps="d3d11va"
2106 h264_d3d11va_hwaccel_select="h264_decoder"
2107 h264_dxva2_hwaccel_deps="dxva2"
2108 h264_dxva2_hwaccel_select="h264_decoder"
2109 h264_mmal_decoder_deps="mmal"
2110 h264_mmal_hwaccel_deps="mmal"
2111 h264_mmal_decoder_select="h264_decoder"
2112 h264_mmal_encoder_deps="mmal"
2113 h264_qsv_hwaccel_deps="libmfx"
2114 h264_vaapi_hwaccel_deps="vaapi"
2115 h264_vaapi_hwaccel_select="h264_decoder"
2116 h264_vda_hwaccel_deps="vda"
2117 h264_vda_hwaccel_select="h264_decoder"
2118 h264_vda_old_hwaccel_deps="vda"
2119 h264_vda_old_hwaccel_select="h264_decoder"
2120 h264_vdpau_hwaccel_deps="vdpau"
2121 h264_vdpau_hwaccel_select="h264_decoder"
2122 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2123 hevc_d3d11va_hwaccel_select="hevc_decoder"
2124 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2125 hevc_dxva2_hwaccel_select="hevc_decoder"
2126 hevc_qsv_hwaccel_deps="libmfx"
2127 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2128 hevc_vdpau_hwaccel_select="hevc_decoder"
2129 mpeg1_vdpau_hwaccel_deps="vdpau"
2130 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2131 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2132 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2133 mpeg2_dxva2_hwaccel_deps="dxva2"
2134 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2135 mpeg2_qsv_hwaccel_deps="libmfx"
2136 mpeg2_vaapi_hwaccel_deps="vaapi"
2137 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2138 mpeg2_vdpau_hwaccel_deps="vdpau"
2139 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2140 mpeg4_vaapi_hwaccel_deps="vaapi"
2141 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2142 mpeg4_vdpau_hwaccel_deps="vdpau"
2143 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2144 vc1_d3d11va_hwaccel_deps="d3d11va"
2145 vc1_d3d11va_hwaccel_select="vc1_decoder"
2146 vc1_dxva2_hwaccel_deps="dxva2"
2147 vc1_dxva2_hwaccel_select="vc1_decoder"
2148 vc1_vaapi_hwaccel_deps="vaapi"
2149 vc1_vaapi_hwaccel_select="vc1_decoder"
2150 vc1_vdpau_hwaccel_deps="vdpau"
2151 vc1_vdpau_hwaccel_select="vc1_decoder"
2152 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2153 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2154 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2155 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2156
2157 # parsers
2158 h264_parser_select="h264_decoder"
2159 hevc_parser_select="golomb"
2160 mpegvideo_parser_select="mpegvideo"
2161 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2162 vc1_parser_select="vc1dsp"
2163
2164 # bitstream_filters
2165 mjpeg2jpeg_bsf_select="jpegtables"
2166
2167 # external libraries
2168 libdcadec_decoder_deps="libdcadec"
2169 libfaac_encoder_deps="libfaac"
2170 libfaac_encoder_select="audio_frame_queue"
2171 libfdk_aac_decoder_deps="libfdk_aac"
2172 libfdk_aac_encoder_deps="libfdk_aac"
2173 libfdk_aac_encoder_select="audio_frame_queue"
2174 libgsm_decoder_deps="libgsm"
2175 libgsm_encoder_deps="libgsm"
2176 libgsm_ms_decoder_deps="libgsm"
2177 libgsm_ms_encoder_deps="libgsm"
2178 libilbc_decoder_deps="libilbc"
2179 libilbc_encoder_deps="libilbc"
2180 libkvazaar_encoder_deps="libkvazaar"
2181 libmp3lame_encoder_deps="libmp3lame"
2182 libmp3lame_encoder_select="audio_frame_queue"
2183 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2184 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2185 libopencore_amrnb_encoder_select="audio_frame_queue"
2186 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2187 libopenh264_encoder_deps="libopenh264"
2188 libopenjpeg_decoder_deps="libopenjpeg"
2189 libopenjpeg_encoder_deps="libopenjpeg"
2190 libopus_decoder_deps="libopus"
2191 libopus_encoder_deps="libopus"
2192 libopus_encoder_select="audio_frame_queue"
2193 libschroedinger_decoder_deps="libschroedinger"
2194 libschroedinger_encoder_deps="libschroedinger"
2195 libspeex_decoder_deps="libspeex"
2196 libspeex_encoder_deps="libspeex"
2197 libspeex_encoder_select="audio_frame_queue"
2198 libtheora_encoder_deps="libtheora"
2199 libtwolame_encoder_deps="libtwolame"
2200 libvo_aacenc_encoder_deps="libvo_aacenc"
2201 libvo_aacenc_encoder_select="audio_frame_queue"
2202 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2203 libvorbis_encoder_deps="libvorbis"
2204 libvorbis_encoder_select="audio_frame_queue"
2205 libvpx_vp8_decoder_deps="libvpx"
2206 libvpx_vp8_encoder_deps="libvpx"
2207 libvpx_vp9_decoder_deps="libvpx"
2208 libvpx_vp9_encoder_deps="libvpx"
2209 libwavpack_encoder_deps="libwavpack"
2210 libwebp_encoder_deps="libwebp"
2211 libx262_encoder_deps="libx262"
2212 libx264_encoder_deps="libx264"
2213 libx265_encoder_deps="libx265"
2214 libxavs_encoder_deps="libxavs"
2215 libxvid_encoder_deps="libxvid"
2216
2217 # demuxers / muxers
2218 ac3_demuxer_select="ac3_parser"
2219 asf_demuxer_select="riffdec"
2220 asf_muxer_select="riffenc"
2221 asf_stream_muxer_select="asf_muxer"
2222 avi_demuxer_select="iso_media riffdec"
2223 avi_muxer_select="riffenc"
2224 avisynth_demuxer_deps="avisynth"
2225 avisynth_demuxer_select="riffdec"
2226 caf_demuxer_select="iso_media riffdec"
2227 dash_muxer_select="mp4_muxer"
2228 dirac_demuxer_select="dirac_parser"
2229 dv_demuxer_select="dvprofile"
2230 dv_muxer_select="dvprofile"
2231 dxa_demuxer_select="riffdec"
2232 eac3_demuxer_select="ac3_parser"
2233 f4v_muxer_select="mov_muxer"
2234 flac_demuxer_select="flac_parser"
2235 hds_muxer_select="flv_muxer"
2236 hls_muxer_select="mpegts_muxer"
2237 ipod_muxer_select="mov_muxer"
2238 ismv_muxer_select="mov_muxer"
2239 matroska_audio_muxer_select="matroska_muxer"
2240 matroska_demuxer_select="iso_media riffdec"
2241 matroska_demuxer_suggest="bzlib lzo zlib"
2242 matroska_muxer_select="iso_media riffenc"
2243 mmf_muxer_select="riffenc"
2244 mov_demuxer_select="iso_media riffdec"
2245 mov_demuxer_suggest="zlib"
2246 mov_muxer_select="iso_media riffenc rtpenc_chain"
2247 mp3_demuxer_select="mpegaudio_parser"
2248 mp4_muxer_select="mov_muxer"
2249 mpegts_demuxer_select="iso_media"
2250 mpegts_muxer_select="adts_muxer latm_muxer"
2251 mpegtsraw_demuxer_select="mpegts_demuxer"
2252 mxf_d10_muxer_select="mxf_muxer"
2253 nut_muxer_select="riffenc"
2254 nuv_demuxer_select="riffdec"
2255 oga_muxer_select="ogg_muxer"
2256 ogg_demuxer_select="dirac_parse"
2257 opus_muxer_select="ogg_muxer"
2258 psp_muxer_select="mov_muxer"
2259 rtp_demuxer_select="sdp_demuxer"
2260 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2261 rtsp_demuxer_select="http_protocol rtpdec"
2262 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2263 sap_demuxer_select="sdp_demuxer"
2264 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2265 sdp_demuxer_select="rtpdec"
2266 smoothstreaming_muxer_select="ismv_muxer"
2267 spdif_muxer_select="aac_parser"
2268 spx_muxer_select="ogg_muxer"
2269 swf_demuxer_suggest="zlib"
2270 tak_demuxer_select="tak_parser"
2271 tg2_muxer_select="mov_muxer"
2272 tgp_muxer_select="mov_muxer"
2273 w64_demuxer_select="wav_demuxer"
2274 wav_demuxer_select="riffdec"
2275 wav_muxer_select="riffenc"
2276 webm_muxer_select="iso_media riffenc"
2277 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2278 wtv_demuxer_select="mpegts_demuxer riffdec"
2279 xmv_demuxer_select="riffdec"
2280 xwma_demuxer_select="riffdec"
2281
2282 # indevs / outdevs
2283 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2284 alsa_outdev_deps="alsa_asoundlib_h"
2285 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2286 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2287 dv1394_indev_deps="dv1394"
2288 dv1394_indev_select="dv_demuxer"
2289 fbdev_indev_deps="linux_fb_h"
2290 jack_indev_deps="jack_jack_h pthreads"
2291 libcdio_indev_deps="libcdio"
2292 libdc1394_indev_deps="libdc1394"
2293 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2294 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2295 pulse_indev_deps="libpulse"
2296 sndio_indev_deps="sndio_h"
2297 sndio_outdev_deps="sndio_h"
2298 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2299 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2300 vfwcap_indev_extralibs="-lavicap32"
2301 x11grab_indev_deps="x11grab"
2302 x11grab_xcb_indev_deps="libxcb"
2303
2304 # protocols
2305 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2306 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2307 ffrtmpcrypt_protocol_select="tcp_protocol"
2308 ffrtmphttp_protocol_deps="!librtmp_protocol"
2309 ffrtmphttp_protocol_select="http_protocol"
2310 gopher_protocol_select="network"
2311 http_protocol_select="tcp_protocol"
2312 httpproxy_protocol_select="tcp_protocol"
2313 https_protocol_select="tls_protocol"
2314 icecast_protocol_select="http_protocol"
2315 librtmp_protocol_deps="librtmp"
2316 librtmpe_protocol_deps="librtmp"
2317 librtmps_protocol_deps="librtmp"
2318 librtmpt_protocol_deps="librtmp"
2319 librtmpte_protocol_deps="librtmp"
2320 mmsh_protocol_select="http_protocol"
2321 mmst_protocol_select="network"
2322 rtmp_protocol_deps="!librtmp_protocol"
2323 rtmp_protocol_select="tcp_protocol"
2324 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2325 rtmps_protocol_deps="!librtmp_protocol"
2326 rtmps_protocol_select="tls_protocol"
2327 rtmpt_protocol_select="ffrtmphttp_protocol"
2328 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2329 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2330 rtp_protocol_select="udp_protocol"
2331 sctp_protocol_deps="struct_sctp_event_subscribe"
2332 sctp_protocol_select="network"
2333 srtp_protocol_select="rtp_protocol"
2334 tcp_protocol_select="network"
2335 tls_gnutls_protocol_deps="gnutls"
2336 tls_gnutls_protocol_select="tcp_protocol"
2337 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2338 tls_openssl_protocol_select="tcp_protocol"
2339 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2340 udp_protocol_select="network"
2341 unix_protocol_deps="sys_un_h"
2342 unix_protocol_select="network"
2343
2344 # filters
2345 blackframe_filter_deps="gpl"
2346 boxblur_filter_deps="gpl"
2347 bs2b_filter_deps="libbs2b"
2348 cropdetect_filter_deps="gpl"
2349 delogo_filter_deps="gpl"
2350 drawtext_filter_deps="libfreetype"
2351 frei0r_filter_deps="frei0r dlopen"
2352 frei0r_filter_extralibs='$ldl'
2353 frei0r_src_filter_deps="frei0r dlopen"
2354 frei0r_src_filter_extralibs='$ldl'
2355 hqdn3d_filter_deps="gpl"
2356 hwupload_cuda_filter_deps="cuda"
2357 interlace_filter_deps="gpl"
2358 ocv_filter_deps="libopencv"
2359 resample_filter_deps="avresample"
2360 scale_filter_deps="swscale"
2361
2362 # examples
2363 avcodec_example_deps="avcodec avutil"
2364 filter_audio_example_deps="avfilter avutil"
2365 metadata_example_deps="avformat avutil"
2366 output_example_deps="avcodec avformat avutil swscale"
2367 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2368 transcode_aac_example_deps="avcodec avformat avresample"
2369
2370 # libraries, in linking order
2371 avcodec_deps="avutil"
2372 avdevice_deps="avformat avcodec avutil"
2373 avfilter_deps="avutil"
2374 avformat_deps="avcodec avutil"
2375 avresample_deps="avutil"
2376 swscale_deps="avutil"
2377
2378 # programs
2379 avconv_deps="avcodec avfilter avformat avresample swscale"
2380 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2381 fps_filter null_filter resample_filter scale_filter
2382 setpts_filter trim_filter"
2383 avplay_deps="avcodec avfilter avformat avresample sdl"
2384 avplay_libs='$sdl_libs'
2385 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2386 avprobe_deps="avcodec avformat"
2387
2388 # documentation
2389 pod2man_deps="doc"
2390 texi2html_deps="doc"
2391
2392 # default parameters
2393
2394 logfile="config.log"
2395
2396 # installation paths
2397 prefix_default="/usr/local"
2398 bindir_default='${prefix}/bin'
2399 datadir_default='${prefix}/share/avconv'
2400 docdir_default='${prefix}/share/doc/libav'
2401 incdir_default='${prefix}/include'
2402 libdir_default='${prefix}/lib'
2403 mandir_default='${prefix}/share/man'
2404 shlibdir_default="$libdir_default"
2405
2406 # toolchain
2407 ar_default="ar"
2408 cc_default="gcc"
2409 host_cc_default="gcc"
2410 cp_f="cp -f"
2411 ln_s="ln -s -f"
2412 nm_default="nm -g"
2413 objformat="elf"
2414 pkg_config_default=pkg-config
2415 ranlib="ranlib"
2416 strip="strip"
2417 yasmexe="yasm"
2418
2419 # machine
2420 arch_default=$(uname -m)
2421 cpu="generic"
2422 intrinsics="none"
2423
2424 # OS
2425 target_os_default=$(tolower $(uname -s))
2426 host_os=$target_os_default
2427
2428 # configurable options
2429 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2430
2431 enable asm
2432 enable debug
2433 enable doc
2434 enable faan faandct faanidct
2435 enable optimizations
2436 enable safe_bitstream_reader
2437 enable static
2438 enable swscale_alpha
2439 enable valgrind_backtrace
2440
2441 # By default, enable only those hwaccels that have no external dependencies.
2442 enable d3d11va dxva2 vda vdpau
2443
2444 # build settings
2445 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2446 LIBPREF="lib"
2447 LIBSUF=".a"
2448 FULLNAME='$(NAME)$(BUILDSUF)'
2449 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2450 SLIBPREF="lib"
2451 SLIBSUF=".so"
2452 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2453 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2454 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2455 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2456 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2457 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2458
2459 asflags_filter=echo
2460 cflags_filter=echo
2461 ldflags_filter=echo
2462
2463 AS_C='-c'
2464 AS_O='-o $@'
2465 CC_C='-c'
2466 CC_E='-E -o $@'
2467 CC_O='-o $@'
2468 OBJCC_C='-c'
2469 OBJCC_E='-E -o $@'
2470 OBJCC_O='-o $@'
2471 LD_O='-o $@'
2472 LD_LIB='-l%'
2473 LD_PATH='-L'
2474 HOSTCC_C='-c'
2475 HOSTCC_E='-E -o $@'
2476 HOSTCC_O='-o $@'
2477 HOSTLD_O='-o $@'
2478
2479 host_libs='-lm'
2480 host_cflags_filter=echo
2481 host_ldflags_filter=echo
2482
2483 target_path='$(CURDIR)'
2484
2485 # since the object filename is not given with the -MM flag, the compiler
2486 # is only able to print the basename, and we must add the path ourselves
2487 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2488 DEPFLAGS='-MM'
2489
2490 # find source path
2491 if test -f configure; then
2492 source_path=.
2493 else
2494 source_path=$(cd $(dirname "$0"); pwd)
2495 echo "$source_path" | grep -q '[[:blank:]]' &&
2496 die "Out of tree builds are impossible with whitespace in source path."
2497 test -e "$source_path/config.h" &&
2498 die "Out of tree builds are impossible with config.h in source dir."
2499 fi
2500
2501 for v in "$@"; do
2502 r=${v#*=}
2503 l=${v%"$r"}
2504 r=$(sh_quote "$r")
2505 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2506 done
2507
2508 find_things(){
2509 thing=$1
2510 pattern=$2
2511 file=$source_path/$3
2512 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2513 }
2514
2515 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2516 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2517 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2518 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2519 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2520 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2521 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2522 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2523 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2524
2525 find_things_extern(){
2526 thing=$1
2527 pattern=$2
2528 file=$source_path/$3
2529 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2530 }
2531
2532 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2533 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2534
2535 ALL_COMPONENTS="
2536 $BSF_LIST
2537 $DECODER_LIST
2538 $DEMUXER_LIST
2539 $ENCODER_LIST
2540 $FILTER_LIST
2541 $HWACCEL_LIST
2542 $INDEV_LIST
2543 $MUXER_LIST
2544 $OUTDEV_LIST
2545 $PARSER_LIST
2546 $PROTOCOL_LIST
2547 "
2548
2549 for n in $COMPONENT_LIST; do
2550 v=$(toupper ${n%s})_LIST
2551 eval enable \$$v
2552 eval ${n}_if_any="\$$v"
2553 done
2554
2555 enable $ARCH_EXT_LIST
2556
2557 die_unknown(){
2558 echo "Unknown option \"$1\"."
2559 echo "See $0 --help for available options."
2560 exit 1
2561 }
2562
2563 print_3_columns() {
2564 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2565 }
2566
2567 show_list() {
2568 suffix=_$1
2569 shift
2570 echo $* | sed s/$suffix//g | print_3_columns
2571 exit 0
2572 }
2573
2574 rand_list(){
2575 IFS=', '
2576 set -- $*
2577 unset IFS
2578 for thing; do
2579 comp=${thing%:*}
2580 prob=${thing#$comp}
2581 prob=${prob#:}
2582 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2583 echo "prob ${prob:-0.5}"
2584 printf '%s\n' $comp
2585 done
2586 }
2587
2588 do_random(){
2589 action=$1
2590 shift
2591 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2592 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2593 }
2594
2595 for opt do
2596 optval="${opt#*=}"
2597 case "$opt" in
2598 --extra-ldflags=*)
2599 add_ldflags $optval
2600 ;;
2601 --extra-ldexeflags=*)
2602 add_ldexeflags $optval
2603 ;;
2604 --extra-libs=*)
2605 add_extralibs $optval
2606 ;;
2607 --disable-devices)
2608 disable $INDEV_LIST $OUTDEV_LIST
2609 ;;
2610 --enable-debug=*)
2611 debuglevel="$optval"
2612 ;;
2613 --disable-programs)
2614 disable $PROGRAM_LIST
2615 ;;
2616 --disable-everything)
2617 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2618 ;;
2619 --disable-all)
2620 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2621 disable $LIBRARY_LIST $PROGRAM_LIST doc
2622 ;;
2623 --enable-random|--disable-random)
2624 action=${opt%%-random}
2625 do_random ${action#--} $COMPONENT_LIST
2626 ;;
2627 --enable-random=*|--disable-random=*)
2628 action=${opt%%-random=*}
2629 do_random ${action#--} $optval
2630 ;;
2631 --enable-*=*|--disable-*=*)
2632 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2633 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2634 eval list=\$$(toupper $thing)_LIST
2635 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2636 $action $(filter "$name" $list)
2637 ;;
2638 --enable-avserver|--disable-avserver*)
2639 warn "avserver has been removed, the ${opt} option is only"\
2640 "provided for compatibility and will be removed in the future"
2641 ;;
2642 --enable-?*|--disable-?*)
2643 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2644 if is_in $option $COMPONENT_LIST; then
2645 test $action = disable && action=unset
2646 eval $action \$$(toupper ${option%s})_LIST
2647 elif is_in $option $CMDLINE_SELECT; then
2648 $action $option
2649 else
2650 die_unknown $opt
2651 fi
2652 ;;
2653 --list-*)
2654 NAME="${opt#--list-}"
2655 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2656 NAME=${NAME%s}
2657 eval show_list $NAME \$$(toupper $NAME)_LIST
2658 ;;
2659 --help|-h) show_help
2660 ;;
2661 *)
2662 optname="${opt%%=*}"
2663 optname="${optname#--}"
2664 optname=$(echo "$optname" | sed 's/-/_/g')
2665 if is_in $optname $CMDLINE_SET; then
2666 eval $optname='$optval'
2667 elif is_in $optname $CMDLINE_APPEND; then
2668 append $optname "$optval"
2669 else
2670 die_unknown $opt
2671 fi
2672 ;;
2673 esac
2674 done
2675
2676 for e in $env; do
2677 eval "export $e"
2678 done
2679
2680 disabled logging && logfile=/dev/null
2681
2682 # Disable all the library-specific components if the library itself
2683 # is disabled, see AVCODEC_LIST and following _LIST variables.
2684
2685 disable_components(){
2686 disabled ${1} && disable $(
2687 eval components="\$$(toupper ${1})_COMPONENTS"
2688 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2689 )
2690 }
2691
2692 map 'disable_components $v' $LIBRARY_LIST
2693
2694 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2695 set >> $logfile
2696
2697 case "$toolchain" in
2698 *-asan)
2699 cc_default="${toolchain%-asan}"
2700 add_cflags -fsanitize=address
2701 add_ldflags -fsanitize=address
2702 ;;
2703 *-msan)
2704 cc_default="${toolchain%-msan}"
2705 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2706 add_ldflags -fsanitize=memory
2707 ;;
2708 *-tsan)
2709 cc_default="${toolchain%-tsan}"
2710 add_cflags -fsanitize=thread -pie
2711 add_ldflags -fsanitize=thread -pie
2712 case "$toolchain" in
2713 gcc-tsan)
2714 add_cflags -fPIC
2715 add_ldflags -fPIC
2716 ;;
2717 esac
2718 ;;
2719 *-usan)
2720 cc_default="${toolchain%-usan}"
2721 add_cflags -fsanitize=undefined
2722 add_ldflags -fsanitize=undefined
2723 case "$toolchain" in
2724 clang-usan)
2725 add_cflags -O1
2726 ;;
2727 esac
2728 ;;
2729 valgrind-*)
2730 target_exec_default="valgrind"
2731 case "$toolchain" in
2732 valgrind-massif)
2733 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2734 ;;
2735 valgrind-memcheck)
2736 target_exec_args="--track-origins=yes --leak-check=full"
2737 ;;
2738 esac
2739 ;;
2740 msvc)
2741 # Check whether the current MSVC version needs the C99 converter.
2742 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2743 # support enough of C99 to build libav. Default to the new
2744 # behaviour if the regexp was unable to match anything, since this
2745 # successfully parses the version number of existing supported
2746 # versions that require the converter (MSVC 2010 and 2012).
2747 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2748 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2749 cc_default="cl"
2750 else
2751 cc_default="c99wrap cl"
2752 fi
2753 ld_default="$source_path/compat/windows/mslink"
2754 nm_default="dumpbin -symbols"
2755 ar_default="lib"
2756 case "$arch" in
2757 arm*)
2758 as_default="armasm"
2759 ;;
2760 esac
2761 target_os_default="win32"
2762 # Use a relative path for TMPDIR. This makes sure all the
2763 # ffconf temp files are written with a relative path, avoiding
2764 # issues with msys/win32 path conversion for MSVC parameters
2765 # such as -Fo<file> or -out:<file>.
2766 TMPDIR=.
2767 ;;
2768 icl)
2769 cc_default="icl"
2770 ld_default="xilink"
2771 nm_default="dumpbin -symbols"
2772 ar_default="xilib"
2773 target_os_default="win32"
2774 TMPDIR=.
2775 ;;
2776 gcov)
2777 add_cflags -fprofile-arcs -ftest-coverage
2778 add_ldflags -fprofile-arcs -ftest-coverage
2779 ;;
2780 llvm-cov)
2781 add_cflags -fprofile-arcs -ftest-coverage
2782 add_ldflags --coverage
2783 ;;
2784 hardened)
2785 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2786 add_cflags -fno-strict-overflow -fstack-protector-all
2787 add_ldflags -Wl,-z,relro -Wl,-z,now
2788 ;;
2789 ?*)
2790 die "Unknown toolchain $toolchain"
2791 ;;
2792 esac
2793
2794 test -n "$cross_prefix" && enable cross_compile
2795
2796 if enabled cross_compile; then
2797 test -n "$arch" && test -n "$target_os" ||
2798 die "Must specify target arch and OS when cross-compiling"
2799 fi
2800
2801 ar_default="${cross_prefix}${ar_default}"
2802 cc_default="${cross_prefix}${cc_default}"
2803 occ_default="${cross_prefix}${occ_default}"
2804 nm_default="${cross_prefix}${nm_default}"
2805 pkg_config_default="${cross_prefix}${pkg_config_default}"
2806 ranlib="${cross_prefix}${ranlib}"
2807 strip="${cross_prefix}${strip}"
2808
2809 sysinclude_default="${sysroot}/usr/include"
2810
2811 set_default arch cc pkg_config sysinclude target_exec target_os
2812 enabled cross_compile || host_cc_default=$cc
2813 set_default host_cc
2814
2815 if ! $pkg_config --version >/dev/null 2>&1; then
2816 warn "$pkg_config not found, library detection may fail."
2817 pkg_config=false
2818 fi
2819
2820 exesuf() {
2821 case $1 in
2822 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2823 esac
2824 }
2825
2826 EXESUF=$(exesuf $target_os)
2827 HOSTEXESUF=$(exesuf $host_os)
2828
2829 # set temporary file name
2830 : ${TMPDIR:=$TEMPDIR}
2831 : ${TMPDIR:=$TMP}
2832 : ${TMPDIR:=/tmp}
2833
2834 if ! check_cmd mktemp -u XXXXXX; then
2835 # simple replacement for missing mktemp
2836 # NOT SAFE FOR GENERAL USE
2837 mktemp(){
2838 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2839 }
2840 fi
2841
2842 tmpfile(){
2843 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2844 (set -C; exec > $tmp) 2>/dev/null ||
2845 die "Unable to create temporary file in $TMPDIR."
2846 append TMPFILES $tmp
2847 eval $1=$tmp
2848 }
2849
2850 trap 'rm -f -- $TMPFILES' EXIT
2851
2852 tmpfile TMPASM .asm
2853 tmpfile TMPC .c
2854 tmpfile TMPE $EXESUF
2855 tmpfile TMPH .h
2856 tmpfile TMPO .o
2857 tmpfile TMPS .S
2858 tmpfile TMPSH .sh
2859 tmpfile TMPV .ver
2860
2861 unset -f mktemp
2862
2863 chmod +x $TMPE
2864
2865 # make sure we can execute files in $TMPDIR
2866 cat > $TMPSH 2>> $logfile <<EOF
2867 #! /bin/sh
2868 EOF
2869 chmod +x $TMPSH >> $logfile 2>&1
2870 if ! $TMPSH >> $logfile 2>&1; then
2871 cat <<EOF
2872 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2873 variable to another directory and make sure that it is not mounted noexec.
2874 EOF
2875 die "Sanity test failed."
2876 fi
2877
2878 armasm_flags(){
2879 for flag; do
2880 case $flag in
2881 # Filter out MSVC cl.exe options from cflags that shouldn't
2882 # be passed to gas-preprocessor
2883 -M[TD]*) ;;
2884 *) echo $flag ;;
2885 esac
2886 done
2887 }
2888
2889 ccc_flags(){
2890 for flag; do
2891 case $flag in
2892 -std=c99) echo -c99 ;;
2893 -mcpu=*) echo -arch ${flag#*=} ;;
2894 -mieee) echo -ieee ;;
2895 -O*|-fast) echo $flag ;;
2896 -fno-math-errno) echo -assume nomath_errno ;;
2897 -g) echo -g3 ;;
2898 -Wall) echo -msg_enable level2 ;;
2899 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2900 -Wl,*) echo $flag ;;
2901 -f*|-W*) ;;
2902 *) echo $flag ;;
2903 esac
2904 done
2905 }
2906
2907 cparser_flags(){
2908 for flag; do
2909 case $flag in
2910 -Wno-switch) echo -Wno-switch-enum ;;
2911 -Wno-format-zero-length) ;;
2912 -Wdisabled-optimization) ;;
2913 -Wno-pointer-sign) echo -Wno-other ;;
2914 *) echo $flag ;;
2915 esac
2916 done
2917 }
2918
2919 msvc_common_flags(){
2920 for flag; do
2921 case $flag in
2922 # In addition to specifying certain flags under the compiler
2923 # specific filters, they must be specified here as well or else the
2924 # generic catch all at the bottom will print the original flag.
2925 -Wall) ;;
2926 -std=c99) ;;
2927 # Common flags
2928 -fomit-frame-pointer) ;;
2929 -g) echo -Z7 ;;
2930 -fno-math-errno) ;;
2931 -fno-common) ;;
2932 -fno-signed-zeros) ;;
2933 -fPIC) ;;
2934 -mthumb) ;;
2935 -march=*) ;;
2936 -lz) echo zlib.lib ;;
2937 -lavifil32) echo vfw32.lib ;;
2938 -lavicap32) echo vfw32.lib user32.lib ;;
2939 -lx264) echo libx264.lib ;;
2940 -l*) echo ${flag#-l}.lib ;;
2941 -L*) echo -libpath:${flag#-L} ;;
2942 *) echo $flag ;;
2943 esac
2944 done
2945 }
2946
2947 msvc_flags(){
2948 msvc_common_flags "$@"
2949 for flag; do
2950 case $flag in
2951 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2952 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2953 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2954 -wd4273 -wd4554 -wd4701 ;;
2955 esac
2956 done
2957 }
2958
2959 icl_flags(){
2960 msvc_common_flags "$@"
2961 for flag; do
2962 case $flag in
2963 # Despite what Intel's documentation says -Wall, which is supported
2964 # on Windows, does enable remarks so disable them here.
2965 -Wall) echo $flag -Qdiag-disable:remark ;;
2966 -std=c99) echo -Qstd=c99 ;;
2967 esac
2968 done
2969 }
2970
2971 pgi_flags(){
2972 for flag; do
2973 case $flag in
2974 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2975 -fomit-frame-pointer) echo -Mnoframe ;;
2976 -g) echo -gopt ;;
2977 *) echo $flag ;;
2978 esac
2979 done
2980 }
2981
2982 suncc_flags(){
2983 for flag; do
2984 case $flag in
2985 -march=*|-mcpu=*)
2986 case "${flag#*=}" in
2987 native) echo -xtarget=native ;;
2988 v9|niagara) echo -xarch=sparc ;;
2989 ultrasparc) echo -xarch=sparcvis ;;
2990 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2991 i586|pentium) echo -xchip=pentium ;;
2992 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2993 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2994 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2995 pentium4*) echo -xtarget=pentium4 ;;
2996 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2997 *-sse3) echo -xarch=sse3 ;;
2998 core2) echo -xarch=ssse3 -xchip=core2 ;;
2999 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3000 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3001 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3002 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3003 k8|opteron|athlon64|athlon-fx)
3004 echo -xarch=sse2a ;;
3005 athlon*) echo -xarch=pentium_proa ;;
3006 esac
3007 ;;
3008 -std=c99) echo -xc99 ;;
3009 -fomit-frame-pointer) echo -xregs=frameptr ;;
3010 -fPIC) echo -KPIC -xcode=pic32 ;;
3011 -W*,*) echo $flag ;;
3012 -f*-*|-W*|-mimpure-text) ;;
3013 -shared) echo -G ;;
3014 *) echo $flag ;;
3015 esac
3016 done
3017 }
3018
3019 tms470_flags(){
3020 for flag; do
3021 case $flag in
3022 -march=*|-mcpu=*)
3023 case "${flag#*=}" in
3024 armv7-a|cortex-a*) echo -mv=7a8 ;;
3025 armv7-r|cortex-r*) echo -mv=7r4 ;;
3026 armv7-m|cortex-m*) echo -mv=7m3 ;;
3027 armv6*|arm11*) echo -mv=6 ;;
3028 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3029 echo -mv=5e ;;
3030 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3031 esac
3032 ;;
3033 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3034 -mfpu=vfp) echo --float_support=vfpv2 ;;
3035 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3036 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3037 -msoft-float) echo --float_support=vfplib ;;
3038 -O[0-3]|-mf=*) echo $flag ;;
3039 -g) echo -g -mn ;;
3040 -pds=*) echo $flag ;;
3041 -D*|-I*) echo $flag ;;
3042 --gcc|--abi=*) echo $flag ;;
3043 -me) echo $flag ;;
3044 esac
3045 done
3046 }
3047
3048 probe_cc(){
3049 pfx=$1
3050 _cc=$2
3051
3052 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3053 unset _ld_o _ldflags _ld_lib _ld_path
3054 unset _depflags _DEPCMD _DEPFLAGS
3055 _flags_filter=echo
3056
3057 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3058 _type=llvm_gcc
3059 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3060 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3061 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3062 _cflags_speed='-O3'
3063 _cflags_size='-Os'
3064 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3065 _type=gcc
3066 gcc_version=$($_cc --version | head -n1)
3067 gcc_basever=$($_cc -dumpversion)
3068 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3069 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3070 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3071 if ! $_cc -dumpversion | grep -q '^2\.'; then
3072 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3073 fi
3074 _cflags_speed='-O3'
3075 _cflags_size='-Os'
3076 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3077 _type=icc
3078 _ident=$($_cc --version | head -n1)
3079 _depflags='-MMD'
3080 _cflags_speed='-O3'
3081 _cflags_size='-Os'
3082 _cflags_noopt='-O1'
3083 elif $_cc -v 2>&1 | grep -q xlc; then
3084 _type=xlc
3085 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3086 _cflags_speed='-O5'
3087 _cflags_size='-O5 -qcompact'
3088 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3089 _type=ccc
3090 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3091 _DEPFLAGS='-M'
3092 _cflags_speed='-fast'
3093 _cflags_size='-O1'
3094 _flags_filter=ccc_flags
3095 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3096 test -d "$sysroot" || die "No valid sysroot specified."
3097 _type=armcc
3098 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3099 armcc_conf="$PWD/armcc.conf"
3100 $_cc --arm_linux_configure \
3101 --arm_linux_config_file="$armcc_conf" \
3102 --configure_sysroot="$sysroot" \
3103 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3104 die "Error creating armcc configuration file."
3105 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3106 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3107 as_default="${cross_prefix}gcc"
3108 _depflags='-MMD'
3109 _cflags_speed='-O3'
3110 _cflags_size='-Os'
3111 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3112 _type=tms470
3113 _ident=$($_cc -version | head -n1 | tr -s ' ')
3114 _flags='--gcc --abi=eabi -me'
3115 _cc_e='-ppl -fe=$@'
3116 _cc_o='-fe=$@'
3117 _depflags='-ppa -ppd=$(@:.o=.d)'
3118 _cflags_speed='-O3 -mf=5'
3119 _cflags_size='-O3 -mf=2'
3120 _flags_filter=tms470_flags
3121 elif $_cc -v 2>&1 | grep -q clang; then
3122 _type=clang
3123 _ident=$($_cc --version 2>/dev/null | head -n1)
3124 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3125 _cflags_speed='-O3'
3126 _cflags_size='-Os'
3127 elif $_cc -V 2>&1 | grep -q Sun; then
3128 _type=suncc
3129 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3130 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3131 _DEPFLAGS='-xM1 -xc99'
3132 _ldflags='-std=c99'
3133 _cflags_speed='-O5'
3134 _cflags_size='-O5 -xspace'
3135 _flags_filter=suncc_flags
3136 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3137 _type=pathscale
3138 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3139 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3140 _cflags_speed='-O2'
3141 _cflags_size='-Os'
3142 _flags_filter='filter_out -Wdisabled-optimization'
3143 elif $_cc -v 2>&1 | grep -q Open64; then
3144 _type=open64
3145 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3146 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3147 _cflags_speed='-O2'
3148 _cflags_size='-Os'
3149 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3150 elif $_cc -V 2>&1 | grep -q Portland; then
3151 _type=pgi
3152 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3153 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3154 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3155 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3156 _cflags_noopt="-O1"
3157 _flags_filter=pgi_flags
3158 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3159 _type=armasm
3160 _ident=$($_cc | head -n1)
3161 # 4509: "This form of conditional instruction is deprecated"
3162 _flags="-nologo -ignore 4509"
3163 _flags_filter=armasm_flags
3164 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3165 _type=msvc
3166 _ident=$($_cc 2>&1 | head -n1)
3167 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3168 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3169 _cflags_speed="-O2"
3170 _cflags_size="-O1"
3171 if $_cc -nologo- 2>&1 | grep -q Linker; then
3172 _ld_o='-out:$@'
3173 else
3174 _ld_o='-Fe$@'
3175 fi
3176 _cc_o='-Fo$@'
3177 _cc_e='-P -Fi$@'
3178 _flags_filter=msvc_flags
3179 _ld_lib='lib%.a'
3180 _ld_path='-libpath:'
3181 _flags='-nologo'
3182 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3183 elif $_cc 2>&1 | grep -q Intel; then
3184 _type=icl
3185 _ident=$($_cc 2>&1 | head -n1)
3186 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3187 # Not only is O3 broken on 13.x+ but it is slower on all previous
3188 # versions (tested) as well.
3189 _cflags_speed="-O2"
3190 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3191 if $_cc 2>&1 | grep -q Linker; then
3192 _ld_o='-out:$@'
3193 else
3194 _ld_o='-Fe$@'
3195 fi
3196 _cc_o='-Fo$@'
3197 _cc_e='-P'
3198 _flags_filter=icl_flags
3199 _ld_lib='lib%.a'
3200 _ld_path='-libpath:'
3201 # -Qdiag-error to make icl error when seeing certain unknown arguments
3202 _flags='-nologo -Qdiag-error:4044,10157'
3203 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3204 # with MSVC which enables it by default.
3205 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3206 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3207 _type=cparser
3208 _ident=$($_cc --version | head -n1)
3209 _depflags='-MMD'
3210 _cflags_speed='-O4'
3211 _cflags_size='-O2'
3212 _flags_filter=cparser_flags
3213 fi
3214
3215 eval ${pfx}_type=\$_type
3216 eval ${pfx}_ident=\$_ident
3217 }
3218
3219 set_ccvars(){
3220 eval ${1}_C=\${_cc_c-\${${1}_C}}
3221 eval ${1}_E=\${_cc_e-\${${1}_E}}
3222 eval ${1}_O=\${_cc_o-\${${1}_O}}
3223
3224 if [ -n "$_depflags" ]; then
3225 eval ${1}_DEPFLAGS=\$_depflags
3226 else
3227 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3228 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3229 eval DEP${1}FLAGS=\$_flags
3230 fi
3231 }
3232
3233 probe_cc cc "$cc"
3234 cflags_filter=$_flags_filter
3235 cflags_speed=$_cflags_speed
3236 cflags_size=$_cflags_size
3237 cflags_noopt=$_cflags_noopt
3238 add_cflags $_flags $_cflags
3239 cc_ldflags=$_ldflags
3240 set_ccvars CC
3241
3242 probe_cc hostcc "$host_cc"
3243 host_cflags_filter=$_flags_filter
3244 add_host_cflags $_flags $_cflags
3245 set_ccvars HOSTCC
3246
3247 test -n "$cc_type" && enable $cc_type ||
3248 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3249
3250 : ${as_default:=$cc}
3251 : ${objcc_default:=$cc}
3252 : ${dep_cc_default:=$cc}
3253 : ${ld_default:=$cc}
3254 : ${host_ld_default:=$host_cc}
3255 set_default ar as objcc dep_cc ld host_ld
3256
3257 probe_cc as "$as"
3258 asflags_filter=$_flags_filter
3259 add_asflags $_flags $_cflags
3260 set_ccvars AS
3261
3262 probe_cc objcc "$objcc"
3263 objcflags_filter=$_flags_filter
3264 add_objcflags $_flags $_cflags
3265 set_ccvars OBJC
3266
3267 probe_cc ld "$ld"
3268 ldflags_filter=$_flags_filter
3269 add_ldflags $_flags $_ldflags
3270 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3271 LD_O=${_ld_o-$LD_O}
3272 LD_LIB=${_ld_lib-$LD_LIB}
3273 LD_PATH=${_ld_path-$LD_PATH}
3274
3275 probe_cc hostld "$host_ld"
3276 host_ldflags_filter=$_flags_filter
3277 add_host_ldflags $_flags $_ldflags
3278 HOSTLD_O=${_ld_o-$HOSTLD_O}
3279
3280 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3281 probe_cc depcc "$dep_cc"
3282 CCDEP=${_DEPCMD:-$DEPCMD}
3283 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3284 DEPCCFLAGS=$_flags
3285 fi
3286
3287 if $ar 2>&1 | grep -q Microsoft; then
3288 arflags="-nologo"
3289 ar_o='-out:$@'
3290 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3291 arflags="rq"
3292 ar_o='$@'
3293 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3294 arflags='-Xany -r -c'
3295 ar_o='$@'
3296 else
3297 arflags="rc"
3298 ar_o='$@'
3299 fi
3300
3301 add_cflags $extra_cflags
3302 add_objcflags $extra_objcflags
3303 add_asflags $extra_cflags
3304
3305 if test -n "$sysroot"; then
3306 case "$cc_type" in
3307 gcc|llvm_gcc|clang)
3308 add_cppflags --sysroot="$sysroot"
3309 add_ldflags --sysroot="$sysroot"
3310 ;;
3311 tms470)
3312 add_cppflags -I"$sysinclude"
3313 add_ldflags --sysroot="$sysroot"
3314 ;;
3315 esac
3316 fi
3317
3318 if test "$cpu" = host; then
3319 enabled cross_compile &&
3320 die "--cpu=host makes no sense when cross-compiling."
3321
3322 case "$cc_type" in
3323 gcc|llvm_gcc)
3324 check_native(){
3325 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3326 sed -n "/cc1.*$1=/{
3327 s/.*$1=\\([^ ]*\\).*/\\1/
3328 p
3329 q
3330 }" $TMPE
3331 }
3332 cpu=$(check_native -march || check_native -mcpu)
3333 ;;
3334 esac
3335
3336 test "${cpu:-host}" = host &&
3337 die "--cpu=host not supported with compiler $cc"
3338 fi
3339
3340 # Deal with common $arch aliases
3341 case "$arch" in
3342 aarch64|arm64)
3343 arch="aarch64"
3344 ;;
3345 arm*)
3346 arch="arm"
3347 ;;
3348 mips*|IP*)
3349 case "$arch" in
3350 *el)
3351 add_cppflags -EL
3352 add_ldflags -EL
3353 ;;
3354 *eb)
3355 add_cppflags -EB
3356 add_ldflags -EB
3357 ;;
3358 esac
3359 arch="mips"
3360 ;;
3361 parisc*|hppa*)
3362 arch="parisc"
3363 ;;
3364 "Power Macintosh"|ppc*|powerpc*)
3365 arch="ppc"
3366 ;;
3367 s390|s390x)
3368 arch="s390"
3369 ;;
3370 sh4|sh)
3371 arch="sh4"
3372 ;;
3373 sun4u|sparc*)
3374 arch="sparc"
3375 ;;
3376 tilegx|tile-gx)
3377 arch="tilegx"
3378 ;;
3379 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3380 arch="x86"
3381 ;;
3382 esac
3383
3384 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3385 enable $arch
3386
3387 # Add processor-specific flags
3388 if enabled aarch64; then
3389
3390 case $cpu in
3391 armv*)
3392 cpuflags="-march=$cpu"
3393 ;;
3394 *)
3395 cpuflags="-mcpu=$cpu"
3396 ;;
3397 esac
3398
3399 elif enabled alpha; then
3400
3401 cpuflags="-mcpu=$cpu"
3402
3403 elif enabled arm; then
3404
3405 check_arm_arch() {
3406 check_cpp_condition stddef.h \
3407 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3408 $cpuflags
3409 }
3410
3411 probe_arm_arch() {
3412 if check_arm_arch 4; then echo armv4;
3413 elif check_arm_arch 4T; then echo armv4t;
3414 elif check_arm_arch 5; then echo armv5;
3415 elif check_arm_arch 5E; then echo armv5e;
3416 elif check_arm_arch 5T; then echo armv5t;
3417 elif check_arm_arch 5TE; then echo armv5te;
3418 elif check_arm_arch 5TEJ; then echo armv5te;
3419 elif check_arm_arch 6; then echo armv6;
3420 elif check_arm_arch 6J; then echo armv6j;
3421 elif check_arm_arch 6K; then echo armv6k;
3422 elif check_arm_arch 6Z; then echo armv6z;
3423 elif check_arm_arch 6ZK; then echo armv6zk;
3424 elif check_arm_arch 6T2; then echo armv6t2;
3425 elif check_arm_arch 7; then echo armv7;
3426 elif check_arm_arch 7A 7_A; then echo armv7-a;
3427 elif check_arm_arch 7S; then echo armv7-a;
3428 elif check_arm_arch 7R 7_R; then echo armv7-r;
3429 elif check_arm_arch 7M 7_M; then echo armv7-m;
3430 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3431 elif check_arm_arch 8A 8_A; then echo armv8-a;
3432 fi
3433 }
3434
3435 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3436
3437 case $cpu in
3438 armv*)
3439 cpuflags="-march=$cpu"
3440 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3441 ;;
3442 *)
3443 cpuflags="-mcpu=$cpu"
3444 case $cpu in
3445 cortex-a*) subarch=armv7a ;;
3446 cortex-r*) subarch=armv7r ;;
3447 cortex-m*) enable thumb; subarch=armv7m ;;
3448 arm11*) subarch=armv6 ;;
3449 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3450 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3451 *) subarch=$(probe_arm_arch) ;;
3452 esac
3453 ;;
3454 esac
3455
3456 case "$subarch" in
3457 armv5t*) enable fast_clz ;;
3458 armv[6-8]*) enable fast_clz fast_unaligned ;;
3459 esac
3460
3461 elif enabled avr32; then
3462
3463 case $cpu in
3464 ap7[02]0[0-2])
3465 subarch="avr32_ap"
3466 cpuflags="-mpart=$cpu"
3467 ;;
3468 ap)
3469 subarch="avr32_ap"
3470 cpuflags="-march=$cpu"
3471 ;;
3472 uc3[ab]*)
3473 subarch="avr32_uc"
3474 cpuflags="-mcpu=$cpu"
3475 ;;
3476 uc)
3477 subarch="avr32_uc"
3478 cpuflags="-march=$cpu"
3479 ;;
3480 esac
3481
3482 elif enabled bfin; then
3483
3484 cpuflags="-mcpu=$cpu"
3485
3486 elif enabled mips; then
3487
3488 cpuflags="-march=$cpu"
3489
3490 elif enabled ppc; then
3491
3492 disable ldbrx
3493
3494 case $(tolower $cpu) in
3495 601|ppc601|powerpc601)
3496 cpuflags="-mcpu=601"
3497 disable altivec
3498 ;;
3499 603*|ppc603*|powerpc603*)
3500 cpuflags="-mcpu=603"
3501 disable altivec
3502 ;;
3503 604*|ppc604*|powerpc604*)
3504 cpuflags="-mcpu=604"
3505 disable altivec
3506 ;;
3507 g3|75*|ppc75*|powerpc75*)
3508 cpuflags="-mcpu=750"
3509 disable altivec
3510 ;;
3511 g4|745*|ppc745*|powerpc745*)
3512 cpuflags="-mcpu=7450"
3513 disable vsx
3514 ;;
3515 74*|ppc74*|powerpc74*)
3516 cpuflags="-mcpu=7400"
3517 disable vsx
3518 ;;
3519 g5|970|ppc970|powerpc970)
3520 cpuflags="-mcpu=970"
3521 disable vsx
3522 ;;
3523 power[3-6]*)
3524 cpuflags="-mcpu=$cpu"
3525 disable vsx
3526 ;;
3527 power[7-8]*)
3528 cpuflags="-mcpu=$cpu"
3529 enable ldbrx
3530 ;;
3531 cell)
3532 cpuflags="-mcpu=cell"
3533 enable ldbrx
3534 disable vsx
3535 ;;
3536 e500mc)
3537 cpuflags="-mcpu=e500mc"
3538 disable altivec
3539 ;;
3540 e500v2)
3541 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3542 disable altivec
3543 disable dcbzl
3544 ;;
3545 e500)
3546 cpuflags="-mcpu=8540 -mhard-float"
3547 disable altivec
3548 disable dcbzl
3549 ;;
3550 esac
3551
3552 elif enabled sparc; then
3553
3554 case $cpu in
3555 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3556 cpuflags="-mcpu=$cpu"
3557 ;;
3558 ultrasparc*|niagara[234])
3559 cpuflags="-mcpu=$cpu"
3560 ;;
3561 esac
3562
3563 elif enabled x86; then
3564
3565 case $cpu in
3566 i[345]86|pentium)
3567 cpuflags="-march=$cpu"
3568 disable i686
3569 disable mmx
3570 ;;
3571 # targets that do NOT support nopl and conditional mov (cmov)
3572 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3573 cpuflags="-march=$cpu"
3574 disable i686
3575 ;;
3576 # targets that do support nopl and conditional mov (cmov)
3577 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3578 cpuflags="-march=$cpu"
3579 enable i686
3580 enable fast_cmov
3581 ;;
3582 # targets that do support conditional mov but on which it's slow
3583 pentium4|pentium4m|prescott|nocona)
3584 cpuflags="-march=$cpu"
3585 enable i686
3586 disable fast_cmov
3587 ;;
3588 esac
3589
3590 fi
3591
3592 if [ "$cpu" != generic ]; then
3593 add_cflags $cpuflags
3594 add_asflags $cpuflags
3595 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3596 fi
3597
3598 # compiler sanity check
3599 check_exec <<EOF
3600 int main(void){ return 0; }
3601 EOF
3602 if test "$?" != 0; then
3603 echo "$cc is unable to create an executable file."
3604 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3605 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3606 echo "Only do this if you know what cross compiling means."
3607 fi
3608 die "C compiler test failed."
3609 fi
3610
3611 add_cppflags -D_ISOC99_SOURCE
3612 check_cflags -std=c99
3613 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3614 #include <stdlib.h>
3615 EOF
3616 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3617 #include <stdlib.h>
3618 EOF
3619
3620 add_host_cppflags -D_ISOC99_SOURCE
3621 check_host_cflags -std=c99
3622 check_host_cflags -Wall
3623 check_host_cflags -O3
3624
3625 check_64bit(){
3626 arch32=$1
3627 arch64=$2
3628 expr=$3
3629 check_code cc "" "int test[2*($expr) - 1]" &&
3630 subarch=$arch64 || subarch=$arch32
3631 }
3632
3633 case "$arch" in
3634 aarch64|alpha|ia64)
3635 spic=$shared
3636 ;;
3637 mips)
3638 check_64bit mips mips64 '_MIPS_SIM > 1'
3639 spic=$shared
3640 ;;
3641 parisc)
3642 check_64bit parisc parisc64 'sizeof(void *) > 4'
3643 spic=$shared
3644 ;;
3645 ppc)
3646 check_64bit ppc ppc64 'sizeof(void *) > 4'
3647 spic=$shared
3648 ;;
3649 s390)
3650 check_64bit s390 s390x 'sizeof(void *) > 4'
3651 spic=$shared
3652 ;;
3653 sparc)
3654 check_64bit sparc sparc64 'sizeof(void *) > 4'
3655 spic=$shared
3656 ;;
3657 x86)
3658 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3659 if test "$subarch" = "x86_64"; then
3660 spic=$shared
3661 fi
3662 ;;
3663 esac
3664
3665 enable $subarch
3666 enabled spic && enable_weak pic
3667
3668 # OS specific
3669 case $target_os in
3670 aix)
3671 SHFLAGS=-shared
3672 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3673 enabled shared && add_ldflags -Wl,-brtl
3674 ;;
3675 android)
3676 disable symver
3677 enable section_data_rel_ro
3678 SLIB_INSTALL_NAME='$(SLIBNAME)'
3679 SLIB_INSTALL_LINKS=
3680 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3681 ;;
3682 haiku)
3683 prefix_default="/boot/common"
3684 network_extralibs="-lnetwork"
3685 host_libs=
3686 ;;
3687 sunos)
3688 SHFLAGS='-shared -Wl,-h,$$(@F)'
3689 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3690 network_extralibs="-lsocket -lnsl"
3691 # When using suncc to build, the Solaris linker will mark
3692 # an executable with each instruction set encountered by
3693 # the Solaris assembler. As our libraries contain their own
3694 # guards for processor-specific code, instead suppress
3695 # generation of the HWCAPS ELF section on Solaris x86 only.
3696 enabled_all suncc x86 &&
3697 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3698 add_ldflags -Wl,-M,mapfile
3699 nm_default='nm -P -g'
3700 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3701 ;;
3702 netbsd)
3703 disable symver
3704 oss_indev_extralibs="-lossaudio"
3705 oss_outdev_extralibs="-lossaudio"
3706 ;;
3707 openbsd|bitrig)
3708 disable symver
3709 SHFLAGS='-shared'
3710 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3711 SLIB_INSTALL_LINKS=
3712 oss_indev_extralibs="-lossaudio"
3713 oss_outdev_extralibs="-lossaudio"
3714 ;;
3715 dragonfly)
3716 disable symver
3717 ;;
3718 freebsd)
3719 ;;
3720 bsd/os)