intrax8: Keep a reference to the context idctdsp
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
134
135 Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
141
142 Individual component options:
143 --disable-everything disable all components listed below
144 --disable-encoder=NAME disable encoder NAME
145 --enable-encoder=NAME enable encoder NAME
146 --disable-encoders disable all encoders
147 --disable-decoder=NAME disable decoder NAME
148 --enable-decoder=NAME enable decoder NAME
149 --disable-decoders disable all decoders
150 --disable-hwaccel=NAME disable hwaccel NAME
151 --enable-hwaccel=NAME enable hwaccel NAME
152 --disable-hwaccels disable all hwaccels
153 --disable-muxer=NAME disable muxer NAME
154 --enable-muxer=NAME enable muxer NAME
155 --disable-muxers disable all muxers
156 --disable-demuxer=NAME disable demuxer NAME
157 --enable-demuxer=NAME enable demuxer NAME
158 --disable-demuxers disable all demuxers
159 --enable-parser=NAME enable parser NAME
160 --disable-parser=NAME disable parser NAME
161 --disable-parsers disable all parsers
162 --enable-bsf=NAME enable bitstream filter NAME
163 --disable-bsf=NAME disable bitstream filter NAME
164 --disable-bsfs disable all bitstream filters
165 --enable-protocol=NAME enable protocol NAME
166 --disable-protocol=NAME disable protocol NAME
167 --disable-protocols disable all protocols
168 --enable-indev=NAME enable input device NAME
169 --disable-indev=NAME disable input device NAME
170 --disable-indevs disable input devices
171 --enable-outdev=NAME enable output device NAME
172 --disable-outdev=NAME disable output device NAME
173 --disable-outdevs disable output devices
174 --disable-devices disable all devices
175 --enable-filter=NAME enable filter NAME
176 --disable-filter=NAME disable filter NAME
177 --disable-filters disable all filters
178
179 External library support:
180 --enable-avisynth enable reading of AviSynth script files [no]
181 --enable-bzlib enable bzlib [autodetect]
182 --enable-cuda enable dynamically linked CUDA [no]
183 --enable-frei0r enable frei0r video filtering
184 --enable-gnutls enable gnutls [no]
185 --enable-libbs2b enable bs2b DSP library [no]
186 --enable-libcdio enable audio CD grabbing with libcdio
187 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
188 and libraw1394 [no]
189 --enable-libdcadec enable DCA decoding via libdcadec [no]
190 --enable-libfaac enable AAC encoding via libfaac [no]
191 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
192 --enable-libfreetype enable libfreetype [no]
193 --enable-libgsm enable GSM de/encoding via libgsm [no]
194 --enable-libilbc enable iLBC de/encoding via libilbc [no]
195 --enable-libkvazaar enable HEVC encoding via libkvazaar [no]
196 --enable-libmfx enable HW acceleration through libmfx
197 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
198 --enable-libnpp enable NVIDIA Performance Primitives-based code [no]
199 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
200 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
201 --enable-libopencv enable video filtering via libopencv [no]
202 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
203 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
204 --enable-libopus enable Opus de/encoding via libopus [no]
205 --enable-libpulse enable Pulseaudio input via libpulse [no]
206 --enable-librtmp enable RTMP[E] support via librtmp [no]
207 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
208 --enable-libsnappy enable Snappy compression [no]
209 --enable-libspeex enable Speex de/encoding via libspeex [no]
210 --enable-libtheora enable Theora encoding via libtheora [no]
211 --enable-libtwolame enable MP2 encoding via libtwolame [no]
212 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
213 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
214 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
215 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
216 --enable-libwavpack enable wavpack encoding via libwavpack [no]
217 --enable-libwebp enable WebP encoding via libwebp [no]
218 --enable-libx264 enable H.264 encoding via x264 [no]
219 --enable-libx265 enable HEVC encoding via x265 [no]
220 --enable-libxavs enable AVS encoding via xavs [no]
221 --enable-libxcb enable X11 grabbing using XCB [no]
222 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
223 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
224 --enable-libxvid enable Xvid encoding via xvidcore,
225 native MPEG-4/Xvid encoder exists [no]
226 --enable-mmal enable decoding via MMAL [no]
227 --enable-nvenc enable encoding via NVENC [no]
228 --enable-openssl enable openssl [no]
229 --enable-x11grab enable X11 grabbing (legacy) [no]
230 --enable-zlib enable zlib [autodetect]
231
232 Toolchain options:
233 --arch=ARCH select architecture [$arch]
234 --cpu=CPU select the minimum required CPU (affects
235 instruction selection, may crash on older CPUs)
236 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
237 --enable-cross-compile assume a cross-compiler is used
238 --sysroot=PATH root of cross-build tree
239 --sysinclude=PATH location of cross-build system headers
240 --target-os=OS compiler targets OS [$target_os]
241 --target-exec=CMD command to run executables on target
242 --target-path=DIR path to view of build directory on target
243 --target-samples=DIR path to samples directory on target
244 --toolchain=NAME set tool defaults according to NAME
245 --nm=NM use nm tool
246 --ar=AR use archive tool AR [$ar_default]
247 --as=AS use assembler AS [$as_default]
248 --cc=CC use C compiler CC [$cc_default]
249 --objcc=OCC use ObjC compiler OCC [$cc_default]
250 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
251 --ld=LD use linker LD
252 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
253 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
254 --host-cc=HOSTCC use host C compiler HOSTCC
255 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
256 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
257 --host-ld=HOSTLD use host linker HOSTLD
258 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
259 --host-libs=HLIBS use libs HLIBS when linking for host
260 --host-os=OS compiler host OS [$target_os]
261 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
262 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
263 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
264 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
265 --extra-libs=ELIBS add ELIBS [$ELIBS]
266 --extra-version=STRING version string suffix []
267 --optflags=OPTFLAGS override optimization-related compiler flags
268 --build-suffix=SUFFIX library name suffix []
269 --enable-pic build position-independent code
270 --enable-thumb compile for Thumb instruction set
271 --enable-lto use link-time optimization
272 --env="ENV=override" override the environment variables
273
274 Advanced options (experts only):
275 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
276 --custom-allocator=NAME use a supported custom allocator
277 --disable-symver disable symbol versioning
278 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
279 --disable-safe-bitstream-reader
280 disable buffer boundary checking in bitreaders
281 (faster, but may crash)
282 --enable-memalign-hack emulate memalign, interferes with memory debuggers
283 --enable-sram allow use of on-chip SRAM
284
285 Optimization options (experts only):
286 --disable-asm disable all assembly optimizations
287 --disable-altivec disable AltiVec optimizations
288 --disable-vsx disable VSX optimizations
289 --disable-power8 disable POWER8 optimizations
290 --disable-amd3dnow disable 3DNow! optimizations
291 --disable-amd3dnowext disable 3DNow! extended optimizations
292 --disable-mmx disable MMX optimizations
293 --disable-mmxext disable MMXEXT optimizations
294 --disable-sse disable SSE optimizations
295 --disable-sse2 disable SSE2 optimizations
296 --disable-sse3 disable SSE3 optimizations
297 --disable-ssse3 disable SSSE3 optimizations
298 --disable-sse4 disable SSE4 optimizations
299 --disable-sse42 disable SSE4.2 optimizations
300 --disable-avx disable AVX optimizations
301 --disable-xop disable XOP optimizations
302 --disable-fma3 disable FMA3 optimizations
303 --disable-fma4 disable FMA4 optimizations
304 --disable-avx2 disable AVX2 optimizations
305 --disable-armv5te disable armv5te optimizations
306 --disable-armv6 disable armv6 optimizations
307 --disable-armv6t2 disable armv6t2 optimizations
308 --disable-vfp disable VFP optimizations
309 --disable-neon disable NEON optimizations
310 --disable-inline-asm disable use of inline assembly
311 --disable-yasm disable use of nasm/yasm assembly
312
313 Developer options (useful when working on Libav itself):
314 --disable-debug disable debugging symbols
315 --enable-debug=LEVEL set the debug level [$debuglevel]
316 --disable-optimizations disable compiler optimizations
317 --enable-extra-warnings enable more compiler warnings
318 --samples=PATH location of test samples for FATE, if not set use
319 \$LIBAV_SAMPLES at make invocation time.
320 --enable-neon-clobber-test check NEON registers for clobbering (should be
321 used only for debugging purposes)
322 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
323 should be used only for debugging purposes)
324 --enable-random randomly enable/disable components
325 --disable-random
326 --enable-random=LIST randomly enable/disable specific components or
327 --disable-random=LIST component groups. LIST is a comma-separated list
328 of NAME[:PROB] entries where NAME is a component
329 (group) and PROB the probability associated with
330 NAME (default 0.5).
331 --random-seed=VALUE seed value for --enable/disable-random
332 --disable-valgrind-backtrace do not print a backtrace under Valgrind
333 (only applies to --disable-optimizations builds)
334
335 NOTE: Object files are built at the place where configure is launched.
336 EOF
337 exit 0
338 }
339
340 quotes='""'
341
342 log(){
343 echo "$@" >> $logfile
344 }
345
346 log_file(){
347 log BEGIN $1
348 i=1
349 while read line; do
350 printf '%5s %s\n' "${i}" "${line}"
351 i=$(($i+1))
352 done < $1 >> $logfile
353 log END $1
354 }
355
356 echolog(){
357 log "$@"
358 echo "$@"
359 }
360
361 warn(){
362 log "WARNING: $*"
363 WARNINGS="${WARNINGS}WARNING: $*\n"
364 }
365
366 die(){
367 echolog "$@"
368 cat <<EOF
369
370 If you think configure made a mistake, make sure you are using the latest
371 version from Git. If the latest version fails, report the problem to the
372 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
373 EOF
374 if disabled logging; then
375 cat <<EOF
376 Rerun configure with logging enabled (do not use --disable-logging), and
377 include the log this produces with your report.
378 EOF
379 else
380 cat <<EOF
381 Include the log file "$logfile" produced by configure as this will help
382 solving the problem.
383 EOF
384 fi
385 exit 1
386 }
387
388 # Avoid locale weirdness, besides we really just want to translate ASCII.
389 toupper(){
390 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
391 }
392
393 tolower(){
394 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
395 }
396
397 c_escape(){
398 echo "$*" | sed 's/["\\]/\\\0/g'
399 }
400
401 sh_quote(){
402 v=$(echo "$1" | sed "s/'/'\\\\''/g")
403 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
404 echo "$v"
405 }
406
407 cleanws(){
408 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
409 }
410
411 filter(){
412 pat=$1
413 shift
414 for v; do
415 eval "case $v in $pat) echo $v ;; esac"
416 done
417 }
418
419 filter_out(){
420 pat=$1
421 shift
422 for v; do
423 eval "case $v in $pat) ;; *) echo $v ;; esac"
424 done
425 }
426
427 map(){
428 m=$1
429 shift
430 for v; do eval $m; done
431 }
432
433 add_suffix(){
434 suffix=$1
435 shift
436 for v; do echo ${v}${suffix}; done
437 }
438
439 set_all(){
440 value=$1
441 shift
442 for var in $*; do
443 eval $var=$value
444 done
445 }
446
447 set_weak(){
448 value=$1
449 shift
450 for var; do
451 eval : \${$var:=$value}
452 done
453 }
454
455 sanitize_var_name(){
456 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
457 }
458
459 set_safe(){
460 var=$1
461 shift
462 eval $(sanitize_var_name "$var")='$*'
463 }
464
465 get_safe(){
466 eval echo \$$(sanitize_var_name "$1")
467 }
468
469 pushvar(){
470 for pvar in $*; do
471 eval level=\${${pvar}_level:=0}
472 eval ${pvar}_${level}="\$$pvar"
473 eval ${pvar}_level=$(($level+1))
474 done
475 }
476
477 popvar(){
478 for pvar in $*; do
479 eval level=\${${pvar}_level:-0}
480 test $level = 0 && continue
481 eval level=$(($level-1))
482 eval $pvar="\${${pvar}_${level}}"
483 eval ${pvar}_level=$level
484 eval unset ${pvar}_${level}
485 done
486 }
487
488 enable(){
489 set_all yes $*
490 }
491
492 disable(){
493 set_all no $*
494 }
495
496 enable_weak(){
497 set_weak yes $*
498 }
499
500 disable_weak(){
501 set_weak no $*
502 }
503
504 enable_safe(){
505 for var; do
506 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
507 done
508 }
509
510 disable_safe(){
511 for var; do
512 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
513 done
514 }
515
516 do_enable_deep(){
517 for var; do
518 enabled $var && continue
519 eval sel="\$${var}_select"
520 eval sgs="\$${var}_suggest"
521 pushvar var sgs
522 enable_deep $sel
523 popvar sgs
524 enable_deep_weak $sgs
525 popvar var
526 done
527 }
528
529 enable_deep(){
530 do_enable_deep $*
531 enable $*
532 }
533
534 enable_deep_weak(){
535 for var; do
536 disabled $var && continue
537 pushvar var
538 do_enable_deep $var
539 popvar var
540 enable_weak $var
541 done
542 }
543
544 enabled(){
545 test "${1#!}" = "$1" && op== || op=!=
546 eval test "x\$${1#!}" $op "xyes"
547 }
548
549 disabled(){
550 test "${1#!}" = "$1" && op== || op=!=
551 eval test "x\$${1#!}" $op "xno"
552 }
553
554 enabled_all(){
555 for opt; do
556 enabled $opt || return 1
557 done
558 }
559
560 disabled_all(){
561 for opt; do
562 disabled $opt || return 1
563 done
564 }
565
566 enabled_any(){
567 for opt; do
568 enabled $opt && return 0
569 done
570 }
571
572 disabled_any(){
573 for opt; do
574 disabled $opt && return 0
575 done
576 return 1
577 }
578
579 set_default(){
580 for opt; do
581 eval : \${$opt:=\$${opt}_default}
582 done
583 }
584
585 is_in(){
586 value=$1
587 shift
588 for var in $*; do
589 [ $var = $value ] && return 0
590 done
591 return 1
592 }
593
594 do_check_deps(){
595 for cfg; do
596 cfg="${cfg#!}"
597 enabled ${cfg}_checking && die "Circular dependency for $cfg."
598 disabled ${cfg}_checking && continue
599 enable ${cfg}_checking
600 append allopts $cfg
601
602 eval dep_all="\$${cfg}_deps"
603 eval dep_any="\$${cfg}_deps_any"
604 eval dep_sel="\$${cfg}_select"
605 eval dep_sgs="\$${cfg}_suggest"
606 eval dep_ifa="\$${cfg}_if"
607 eval dep_ifn="\$${cfg}_if_any"
608
609 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
610 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
611 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
612
613 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
614 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
615 enabled_all $dep_all || disable $cfg
616 enabled_any $dep_any || disable $cfg
617 disabled_any $dep_sel && disable $cfg
618
619 if enabled $cfg; then
620 enable_deep $dep_sel
621 enable_deep_weak $dep_sgs
622 fi
623
624 disable ${cfg}_checking
625 done
626 }
627
628 check_deps(){
629 unset allopts
630
631 do_check_deps "$@"
632
633 for cfg in $allopts; do
634 enabled $cfg || continue
635 eval dep_extralibs="\$${cfg}_extralibs"
636 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
637 done
638 }
639
640 print_config(){
641 pfx=$1
642 files=$2
643 shift 2
644 map 'eval echo "$v \${$v:-no}"' "$@" |
645 awk "BEGIN { split(\"$files\", files) }
646 {
647 c = \"$pfx\" toupper(\$1);
648 v = \$2;
649 sub(/yes/, 1, v);
650 sub(/no/, 0, v);
651 for (f in files) {
652 file = files[f];
653 if (file ~ /\\.h\$/) {
654 printf(\"#define %s %d\\n\", c, v) >>file;
655 } else if (file ~ /\\.asm\$/) {
656 printf(\"%%define %s %d\\n\", c, v) >>file;
657 } else if (file ~ /\\.mak\$/) {
658 n = -v ? \"\" : \"!\";
659 printf(\"%s%s=yes\\n\", n, c) >>file;
660 }
661 }
662 }"
663 }
664
665 print_enabled(){
666 suf=$1
667 shift
668 for v; do
669 enabled $v && printf "%s\n" ${v%$suf};
670 done
671 }
672
673 append(){
674 var=$1
675 shift
676 eval "$var=\"\$$var $*\""
677 }
678
679 prepend(){
680 var=$1
681 shift
682 eval "$var=\"$* \$$var\""
683 }
684
685 unique(){
686 var=$1
687 uniq_list=""
688 for tok in $(eval echo \$$var); do
689 uniq_list="$(filter_out $tok $uniq_list) $tok"
690 done
691 eval "$var=\"${uniq_list}\""
692 }
693
694 add_cppflags(){
695 append CPPFLAGS "$@"
696 }
697
698 add_cflags(){
699 append CFLAGS $($cflags_filter "$@")
700 }
701
702 add_asflags(){
703 append ASFLAGS $($asflags_filter "$@")
704 }
705
706 add_objcflags(){
707 append OBJCFLAGS $($objcflags_filter "$@")
708 }
709
710 add_ldflags(){
711 append LDFLAGS $($ldflags_filter "$@")
712 }
713
714 add_ldexeflags(){
715 append LDEXEFLAGS $($ldflags_filter "$@")
716 }
717
718 add_stripflags(){
719 append STRIPFLAGS "$@"
720 }
721
722 add_extralibs(){
723 prepend extralibs $($ldflags_filter "$@")
724 }
725
726 add_host_cppflags(){
727 append host_cppflags "$@"
728 }
729
730 add_host_cflags(){
731 append host_cflags $($host_cflags_filter "$@")
732 }
733
734 add_host_ldflags(){
735 append host_ldflags $($host_ldflags_filter "$@")
736 }
737
738 add_compat(){
739 append compat_objs $1
740 shift
741 map 'add_cppflags -D$v' "$@"
742 }
743
744 check_cmd(){
745 log "$@"
746 "$@" >> $logfile 2>&1
747 }
748
749 cc_o(){
750 eval printf '%s\\n' $CC_O
751 }
752
753 cc_e(){
754 eval printf '%s\\n' $CC_E
755 }
756
757 check_cc(){
758 log check_cc "$@"
759 cat > $TMPC
760 log_file $TMPC
761 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
762 }
763
764 check_objcc(){
765 log check_objcc "$@"
766 cat > $TMPC
767 log_file $TMPC
768 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
769 }
770
771 check_cpp(){
772 log check_cpp "$@"
773 cat > $TMPC
774 log_file $TMPC
775 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
776 }
777
778 as_o(){
779 eval printf '%s\\n' $AS_O
780 }
781
782 check_as(){
783 log check_as "$@"
784 cat > $TMPS
785 log_file $TMPS
786 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
787 }
788
789 check_inline_asm(){
790 log check_inline_asm "$@"
791 name="$1"
792 code="$2"
793 shift 2
794 disable $name
795 check_cc "$@" <<EOF && enable $name
796 void foo(void){ __asm__ volatile($code); }
797 EOF
798 }
799
800 check_insn(){
801 log check_insn "$@"
802 check_inline_asm ${1}_inline "\"$2\""
803 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
804 }
805
806 check_yasm(){
807 log check_yasm "$@"
808 echo "$1" > $TMPS
809 log_file $TMPS
810 shift 1
811 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
812 }
813
814 ld_o(){
815 eval printf '%s\\n' $LD_O
816 }
817
818 check_ld(){
819 log check_ld "$@"
820 flags=$(filter_out '-l*' "$@")
821 libs=$(filter '-l*' "$@")
822 check_cc $($cflags_filter $flags) || return
823 flags=$($ldflags_filter $flags)
824 libs=$($ldflags_filter $libs)
825 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
826 }
827
828 print_include(){
829 hdr=$1
830 test "${hdr%.h}" = "${hdr}" &&
831 echo "#include $hdr" ||
832 echo "#include <$hdr>"
833 }
834
835 check_code(){
836 log check_code "$@"
837 check=$1
838 headers=$2
839 code=$3
840 shift 3
841 {
842 for hdr in $headers; do
843 print_include $hdr
844 done
845 echo "int main(void) { $code; return 0; }"
846 } | check_$check "$@"
847 }
848
849 check_cppflags(){
850 log check_cppflags "$@"
851 check_cc "$@" <<EOF && append CPPFLAGS "$@"
852 int x;
853 EOF
854 }
855
856 test_cflags(){
857 log test_cflags "$@"
858 set -- $($cflags_filter "$@")
859 check_cc "$@" <<EOF
860 int x;
861 EOF
862 }
863
864 check_cflags(){
865 log check_cflags "$@"
866 test_cflags "$@" && add_cflags "$@"
867 }
868
869 test_objcflags(){
870 log test_cflags "$@"
871 set -- $($cflags_filter "$@")
872 check_objcc "$@" <<EOF
873 int x;
874 EOF
875 }
876
877 check_objcflags(){
878 log check_cflags "$@"
879 test_objcflags "$@" && add_objcflags "$@"
880 }
881
882 test_ldflags(){
883 log test_ldflags "$@"
884 check_ld "$@" <<EOF
885 int main(void){ return 0; }
886 EOF
887 }
888
889 check_ldflags(){
890 log check_ldflags "$@"
891 test_ldflags "$@" && add_ldflags "$@"
892 }
893
894 test_stripflags(){
895 log test_stripflags "$@"
896 # call check_cc to get a fresh TMPO
897 check_cc <<EOF
898 int main(void) { return 0; }
899 EOF
900 check_cmd $strip $STRIPFLAGS "$@" $TMPO
901 }
902
903 check_stripflags(){
904 log check_stripflags "$@"
905 test_stripflags "$@" && add_stripflags "$@"
906 }
907
908 check_header(){
909 log check_header "$@"
910 header=$1
911 shift
912 disable_safe $header
913 check_cpp "$@" <<EOF && enable_safe $header
914 #include <$header>
915 int x;
916 EOF
917 }
918
919 check_func(){
920 log check_func "$@"
921 func=$1
922 shift
923 disable $func
924 check_ld "$@" <<EOF && enable $func
925 extern int $func();
926 int main(void){ $func(); }
927 EOF
928 }
929
930 check_mathfunc(){
931 log check_mathfunc "$@"
932 func=$1
933 narg=$2
934 shift 2
935 test $narg = 2 && args="f, g" || args="f"
936 disable $func
937 check_ld "$@" <<EOF && enable $func
938 #include <math.h>
939 float foo(float f, float g) { return $func($args); }
940 int main(void){ return 0; }
941 EOF
942 }
943
944 check_func_headers(){
945 log check_func_headers "$@"
946 headers=$1
947 funcs=$2
948 shift 2
949 {
950 for hdr in $headers; do
951 print_include $hdr
952 done
953 for func in $funcs; do
954 echo "long check_$func(void) { return (long) $func; }"
955 done
956 echo "int main(void) { return 0; }"
957 } | check_ld "$@" && enable $funcs && enable_safe $headers
958 }
959
960 check_cpp_condition(){
961 log check_cpp_condition "$@"
962 header=$1
963 condition=$2
964 shift 2
965 check_cpp "$@" <<EOF
966 #include <$header>
967 #if !($condition)
968 #error "unsatisfied condition: $condition"
969 #endif
970 EOF
971 }
972
973 check_lib(){
974 log check_lib "$@"
975 header="$1"
976 func="$2"
977 shift 2
978 check_header $header && check_func $func "$@" && add_extralibs "$@"
979 }
980
981 check_lib2(){
982 log check_lib2 "$@"
983 headers="$1"
984 funcs="$2"
985 shift 2
986 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
987 }
988
989 check_pkg_config(){
990 log check_pkg_config "$@"
991 pkg="$1"
992 headers="$2"
993 funcs="$3"
994 shift 3
995 check_cmd $pkg_config --exists --print-errors $pkg || return
996 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
997 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
998 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
999 set_safe "${pkg}_cflags" $pkg_cflags &&
1000 set_safe "${pkg}_libs" $pkg_libs
1001 }
1002
1003 check_exec(){
1004 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1005 }
1006
1007 check_exec_crash(){
1008 code=$(cat)
1009
1010 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1011 # are safe but may not be available everywhere. Thus we use
1012 # raise(SIGTERM) instead. The check is run in a subshell so we
1013 # can redirect the "Terminated" message from the shell. SIGBUS
1014 # is not defined by standard C so it is used conditionally.
1015
1016 (check_exec "$@") >> $logfile 2>&1 <<EOF
1017 #include <signal.h>
1018 static void sighandler(int sig){
1019 raise(SIGTERM);
1020 }
1021 int foo(void){
1022 $code
1023 }
1024 int (*func_ptr)(void) = foo;
1025 int main(void){
1026 signal(SIGILL, sighandler);
1027 signal(SIGFPE, sighandler);
1028 signal(SIGSEGV, sighandler);
1029 #ifdef SIGBUS
1030 signal(SIGBUS, sighandler);
1031 #endif
1032 return func_ptr();
1033 }
1034 EOF
1035 }
1036
1037 check_type(){
1038 log check_type "$@"
1039 headers=$1
1040 type=$2
1041 shift 2
1042 disable_safe "$type"
1043 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1044 }
1045
1046 check_struct(){
1047 log check_struct "$@"
1048 headers=$1
1049 struct=$2
1050 member=$3
1051 shift 3
1052 disable_safe "${struct}_${member}"
1053 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1054 enable_safe "${struct}_${member}"
1055 }
1056
1057 check_builtin(){
1058 log check_builtin "$@"
1059 name=$1
1060 headers=$2
1061 builtin=$3
1062 shift 3
1063 disable "$name"
1064 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1065 }
1066
1067 check_compile_assert(){
1068 log check_compile_assert "$@"
1069 name=$1
1070 headers=$2
1071 condition=$3
1072 shift 3
1073 disable "$name"
1074 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1075 }
1076
1077 require(){
1078 name="$1"
1079 header="$2"
1080 func="$3"
1081 shift 3
1082 check_lib $header $func "$@" || die "ERROR: $name not found"
1083 }
1084
1085 require2(){
1086 name="$1"
1087 headers="$2"
1088 func="$3"
1089 shift 3
1090 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1091 }
1092
1093 require_pkg_config(){
1094 pkg="$1"
1095 check_pkg_config "$@" || die "ERROR: $pkg not found"
1096 add_cflags $(get_safe "${pkg}_cflags")
1097 add_extralibs $(get_safe "${pkg}_libs")
1098 }
1099
1100 hostcc_e(){
1101 eval printf '%s\\n' $HOSTCC_E
1102 }
1103
1104 hostcc_o(){
1105 eval printf '%s\\n' $HOSTCC_O
1106 }
1107
1108 check_host_cc(){
1109 log check_host_cc "$@"
1110 cat > $TMPC
1111 log_file $TMPC
1112 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1113 }
1114
1115 check_host_cpp(){
1116 log check_host_cpp "$@"
1117 cat > $TMPC
1118 log_file $TMPC
1119 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1120 }
1121
1122 check_host_cppflags(){
1123 log check_host_cppflags "$@"
1124 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1125 int x;
1126 EOF
1127 }
1128
1129 check_host_cflags(){
1130 log check_host_cflags "$@"
1131 set -- $($host_cflags_filter "$@")
1132 check_host_cc "$@" <<EOF && append host_cflags "$@"
1133 int x;
1134 EOF
1135 }
1136
1137 check_host_cpp_condition(){
1138 log check_host_cpp_condition "$@"
1139 header=$1
1140 condition=$2
1141 shift 2
1142 check_host_cpp "$@" <<EOF
1143 #include <$header>
1144 #if !($condition)
1145 #error "unsatisfied condition: $condition"
1146 #endif
1147 EOF
1148 }
1149
1150 apply(){
1151 file=$1
1152 shift
1153 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1154 }
1155
1156 cp_if_changed(){
1157 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1158 mkdir -p "$(dirname $2)"
1159 $cp_f "$1" "$2"
1160 }
1161
1162 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1163 # system-dependent things.
1164
1165 AVCODEC_COMPONENTS="
1166 bsfs
1167 decoders
1168 encoders
1169 hwaccels
1170 parsers
1171 "
1172
1173 AVDEVICE_COMPONENTS="
1174 indevs
1175 outdevs
1176 "
1177 AVFILTER_COMPONENTS="
1178 filters
1179 "
1180 AVFORMAT_COMPONENTS="
1181 demuxers
1182 muxers
1183 protocols
1184 "
1185
1186 AVRESAMPLE_COMPONENTS=""
1187 AVUTIL_COMPONENTS=""
1188
1189 COMPONENT_LIST="
1190 $AVCODEC_COMPONENTS
1191 $AVDEVICE_COMPONENTS
1192 $AVFILTER_COMPONENTS
1193 $AVFORMAT_COMPONENTS
1194 $AVRESAMPLE_COMPONENTS
1195 $AVUTIL_COMPONENTS
1196 "
1197
1198 EXAMPLE_LIST="
1199 avcodec_example
1200 filter_audio_example
1201 metadata_example
1202 output_example
1203 qsvdec_example
1204 transcode_aac_example
1205 "
1206
1207 EXTERNAL_LIBRARY_LIST="
1208 avisynth
1209 bzlib
1210 cuda
1211 frei0r
1212 gnutls
1213 libbs2b
1214 libcdio
1215 libdc1394
1216 libdcadec
1217 libfaac
1218 libfdk_aac
1219 libfontconfig
1220 libfreetype
1221 libgsm
1222 libilbc
1223 libkvazaar
1224 libmfx
1225 libmp3lame
1226 libnpp
1227 libopencore_amrnb
1228 libopencore_amrwb
1229 libopencv
1230 libopenh264
1231 libopenjpeg
1232 libopus
1233 libpulse
1234 librtmp
1235 libschroedinger
1236 libsnappy
1237 libspeex
1238 libtheora
1239 libtwolame
1240 libvo_aacenc
1241 libvo_amrwbenc
1242 libvorbis
1243 libvpx
1244 libwavpack
1245 libwebp
1246 libx264
1247 libx265
1248 libxavs
1249 libxcb
1250 libxcb_shm
1251 libxcb_xfixes
1252 libxvid
1253 mmal
1254 nvenc
1255 openssl
1256 x11grab
1257 zlib
1258 "
1259
1260 FEATURE_LIST="
1261 gray
1262 hardcoded_tables
1263 runtime_cpudetect
1264 safe_bitstream_reader
1265 shared
1266 small
1267 sram
1268 static
1269 swscale_alpha
1270 "
1271
1272 HWACCEL_LIST="
1273 d3d11va
1274 dxva2
1275 vaapi
1276 vda
1277 vdpau
1278 "
1279
1280 LIBRARY_LIST="
1281 avcodec
1282 avdevice
1283 avfilter
1284 avformat
1285 avresample
1286 avutil
1287 swscale
1288 "
1289
1290 LICENSE_LIST="
1291 gpl
1292 nonfree
1293 version3
1294 "
1295
1296 PROGRAM_LIST="
1297 avconv
1298 avplay
1299 avprobe
1300 "
1301
1302 SUBSYSTEM_LIST="
1303 dct
1304 doc
1305 error_resilience
1306 faan
1307 fft
1308 lsp
1309 lzo
1310 mdct
1311 network
1312 rdft
1313 "
1314
1315 CONFIG_LIST="
1316 $COMPONENT_LIST
1317 $EXAMPLE_LIST
1318 $EXTERNAL_LIBRARY_LIST
1319 $FEATURE_LIST
1320 $HWACCEL_LIST
1321 $LICENSE_LIST
1322 $LIBRARY_LIST
1323 $PROGRAM_LIST
1324 $SUBSYSTEM_LIST
1325 memalign_hack
1326 neon_clobber_test
1327 pic
1328 pod2man
1329 texi2html
1330 thumb
1331 valgrind_backtrace
1332 xmm_clobber_test
1333 "
1334
1335 THREADS_LIST="
1336 pthreads
1337 w32threads
1338 "
1339
1340 ATOMICS_LIST="
1341 atomics_gcc
1342 atomics_suncc
1343 atomics_win32
1344 "
1345
1346 ARCH_LIST="
1347 aarch64
1348 alpha
1349 arm
1350 avr32
1351 avr32_ap
1352 avr32_uc
1353 bfin
1354 ia64
1355 m68k
1356 mips
1357 mips64
1358 parisc
1359 ppc
1360 ppc64
1361 s390
1362 sh4
1363 sparc
1364 sparc64
1365 tilegx
1366 tilepro
1367 tomi
1368 x86
1369 x86_32
1370 x86_64
1371 "
1372
1373 ARCH_EXT_LIST_ARM="
1374 armv5te
1375 armv6
1376 armv6t2
1377 armv8
1378 neon
1379 vfp
1380 vfpv3
1381 "
1382
1383 ARCH_EXT_LIST_X86_SIMD="
1384 amd3dnow
1385 amd3dnowext
1386 avx
1387 avx2
1388 fma3
1389 fma4
1390 mmx
1391 mmxext
1392 sse
1393 sse2
1394 sse3
1395 sse4
1396 sse42
1397 ssse3
1398 xop
1399 "
1400
1401 ARCH_EXT_LIST_PPC="
1402 altivec
1403 dcbzl
1404 ldbrx
1405 power8
1406 ppc4xx
1407 vsx
1408 "
1409
1410 ARCH_EXT_LIST_X86="
1411 $ARCH_EXT_LIST_X86_SIMD
1412 cpunop
1413 i686
1414 "
1415
1416 ARCH_EXT_LIST_MIPS="
1417 loongson
1418 mips32r1
1419 mips64r1
1420 mips32r2
1421 mips64r2
1422 mips32r6
1423 mips64r6
1424 "
1425
1426 ARCH_EXT_LIST="
1427 $ARCH_EXT_LIST_ARM
1428 $ARCH_EXT_LIST_MIPS
1429 $ARCH_EXT_LIST_PPC
1430 $ARCH_EXT_LIST_X86
1431 vis
1432 "
1433
1434 ARCH_FEATURES="
1435 aligned_stack
1436 fast_64bit
1437 fast_clz
1438 fast_cmov
1439 local_aligned_8
1440 local_aligned_16
1441 simd_align_16
1442 "
1443
1444 BUILTIN_LIST="
1445 atomic_cas_ptr
1446 machine_rw_barrier
1447 MemoryBarrier
1448 mm_empty
1449 rdtsc
1450 sync_val_compare_and_swap
1451 "
1452 HAVE_LIST_CMDLINE="
1453 inline_asm
1454 symver
1455 yasm
1456 "
1457
1458 HAVE_LIST_PUB="
1459 bigendian
1460 fast_unaligned
1461 "
1462
1463 HEADERS_LIST="
1464 AVFoundation_AVFoundation_h
1465 alsa_asoundlib_h
1466 altivec_h
1467 arpa_inet_h
1468 cdio_paranoia_h
1469 cdio_paranoia_paranoia_h
1470 dev_bktr_ioctl_bt848_h
1471 dev_bktr_ioctl_meteor_h
1472 dev_ic_bt8xx_h
1473 dev_video_bktr_ioctl_bt848_h
1474 dev_video_meteor_ioctl_meteor_h
1475 direct_h
1476 dlfcn_h
1477 d3d11_h
1478 dxva_h
1479 gsm_h
1480 io_h
1481 mach_mach_time_h
1482 machine_ioctl_bt848_h
1483 machine_ioctl_meteor_h
1484 malloc_h
1485 poll_h
1486 sndio_h
1487 soundcard_h
1488 sys_mman_h
1489 sys_param_h
1490 sys_resource_h
1491 sys_select_h
1492 sys_soundcard_h
1493 sys_time_h
1494 sys_un_h
1495 sys_videoio_h
1496 unistd_h
1497 valgrind_valgrind_h
1498 windows_h
1499 winsock2_h
1500 "
1501
1502 INTRINSICS_LIST="
1503 intrinsics_neon
1504 "
1505
1506 MATH_FUNCS="
1507 atanf
1508 atan2f
1509 cbrtf
1510 cosf
1511 exp2
1512 exp2f
1513 expf
1514 isinf
1515 isnan
1516 ldexpf
1517 llrint
1518 llrintf
1519 log2
1520 log2f
1521 log10f
1522 lrint
1523 lrintf
1524 powf
1525 rint
1526 round
1527 roundf
1528 sinf
1529 trunc
1530 truncf
1531 "
1532
1533 SYSTEM_FUNCS="
1534 aligned_malloc
1535 clock_gettime
1536 closesocket
1537 CommandLineToArgvW
1538 CoTaskMemFree
1539 CryptGenRandom
1540 dlopen
1541 fcntl
1542 flt_lim
1543 fork
1544 getaddrinfo
1545 gethrtime
1546 getopt
1547 GetProcessAffinityMask
1548 GetProcessMemoryInfo
1549 GetProcessTimes
1550 getrusage
1551 GetSystemTimeAsFileTime
1552 gettimeofday
1553 gmtime_r
1554 inet_aton
1555 isatty
1556 jack_port_get_latency_range
1557 LoadLibrary
1558 localtime_r
1559 mach_absolute_time
1560 MapViewOfFile
1561 memalign
1562 mkstemp
1563 mmap
1564 mprotect
1565 nanosleep
1566 posix_memalign
1567 sched_getaffinity
1568 SetConsoleTextAttribute
1569 setmode
1570 setrlimit
1571 Sleep
1572 strerror_r
1573 sysconf
1574 sysctl
1575 usleep
1576 VirtualAlloc
1577 "
1578
1579 TOOLCHAIN_FEATURES="
1580 as_dn_directive
1581 as_func
1582 as_object_arch
1583 asm_mod_q
1584 attribute_may_alias
1585 attribute_packed
1586 ebp_available
1587 ebx_available
1588 gnu_as
1589 ibm_asm
1590 inline_asm_labels
1591 pragma_deprecated
1592 symver_asm_label
1593 symver_gnu_asm
1594 vfp_args
1595 xform_asm
1596 xmm_clobbers
1597 "
1598
1599 TYPES_LIST="
1600 CONDITION_VARIABLE_Ptr
1601 socklen_t
1602 struct_addrinfo
1603 struct_group_source_req
1604 struct_ip_mreq_source
1605 struct_ipv6_mreq
1606 struct_pollfd
1607 struct_rusage_ru_maxrss
1608 struct_sockaddr_in6
1609 struct_sockaddr_sa_len
1610 struct_sockaddr_storage
1611 struct_v4l2_frmivalenum_discrete
1612 "
1613
1614 HAVE_LIST="
1615 $ARCH_EXT_LIST
1616 $(add_suffix _external $ARCH_EXT_LIST)
1617 $(add_suffix _inline $ARCH_EXT_LIST)
1618 $ARCH_FEATURES
1619 $ATOMICS_LIST
1620 $BUILTIN_LIST
1621 $HAVE_LIST_CMDLINE
1622 $HAVE_LIST_PUB
1623 $HEADERS_LIST
1624 $INTRINSICS_LIST
1625 $MATH_FUNCS
1626 $SYSTEM_FUNCS
1627 $THREADS_LIST
1628 $TOOLCHAIN_FEATURES
1629 $TYPES_LIST
1630 atomics_native
1631 dos_paths
1632 dxva2_lib
1633 libc_msvcrt
1634 libdc1394_1
1635 libdc1394_2
1636 sdl
1637 section_data_rel_ro
1638 threads
1639 vaapi_x11
1640 vdpau_x11
1641 xlib
1642 "
1643
1644 # options emitted with CONFIG_ prefix but not available on the command line
1645 CONFIG_EXTRA="
1646 aandcttables
1647 ac3dsp
1648 audio_frame_queue
1649 audiodsp
1650 blockdsp
1651 bswapdsp
1652 cabac
1653 dirac_parse
1654 dvprofile
1655 faandct
1656 faanidct
1657 fdctdsp
1658 flacdsp
1659 fmtconvert
1660 g722dsp
1661 gcrypt
1662 gmp
1663 golomb
1664 gplv3
1665 h263dsp
1666 h264chroma
1667 h264dsp
1668 h264pred
1669 h264qpel
1670 hpeldsp
1671 huffman
1672 huffyuvdsp
1673 huffyuvencdsp
1674 idctdsp
1675 iirfilter
1676 imdct15
1677 intrax8
1678 iso_media
1679 ividsp
1680 jpegtables
1681 libx262
1682 lgplv3
1683 lpc
1684 lzf
1685 me_cmp
1686 mpeg_er
1687 mpegaudio
1688 mpegaudiodsp
1689 mpegvideo
1690 mpegvideoenc
1691 mss34dsp
1692 pixblockdsp
1693 qpeldsp
1694 qsv
1695 qsvdec
1696 qsvenc
1697 rangecoder
1698 riffdec
1699 riffenc
1700 rtpdec
1701 rtpenc_chain
1702 rv34dsp
1703 sinewin
1704 snappy
1705 srtp
1706 startcode
1707 texturedsp
1708 texturedspenc
1709 tpeldsp
1710 vc1dsp
1711 videodsp
1712 vp3dsp
1713 vp56dsp
1714 vp8dsp
1715 wma_freqs
1716 wmv2dsp
1717 "
1718
1719 CMDLINE_SELECT="
1720 $ARCH_EXT_LIST
1721 $CONFIG_LIST
1722 $HAVE_LIST_CMDLINE
1723 $THREADS_LIST
1724 asm
1725 cross_compile
1726 debug
1727 extra_warnings
1728 logging
1729 lto
1730 optimizations
1731 rpath
1732 "
1733
1734 PATHS_LIST="
1735 bindir
1736 datadir
1737 docdir
1738 incdir
1739 libdir
1740 mandir
1741 prefix
1742 shlibdir
1743 "
1744
1745 CMDLINE_SET="
1746 $PATHS_LIST
1747 ar
1748 arch
1749 as
1750 build_suffix
1751 cc
1752 objcc
1753 cpu
1754 cross_prefix
1755 custom_allocator
1756 dep_cc
1757 env
1758 extra_version
1759 host_cc
1760 host_cflags
1761 host_ld
1762 host_ldflags
1763 host_libs
1764 host_os
1765 ld
1766 logfile
1767 malloc_prefix
1768 nm
1769 optflags
1770 pkg_config
1771 pkg_config_flags
1772 random_seed
1773 samples
1774 sysinclude
1775 sysroot
1776 target_exec
1777 target_os
1778 target_path
1779 target_samples
1780 toolchain
1781 "
1782
1783 CMDLINE_APPEND="
1784 extra_cflags
1785 extra_objcflags
1786 host_cppflags
1787 "
1788
1789 # code dependency declarations
1790
1791 # architecture extensions
1792
1793 armv5te_deps="arm"
1794 armv6_deps="arm"
1795 armv6t2_deps="arm"
1796 armv8_deps="aarch64"
1797 neon_deps_any="aarch64 arm"
1798 intrinsics_neon_deps="neon"
1799 vfp_deps_any="aarch64 arm"
1800 vfpv3_deps="vfp"
1801
1802 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1803
1804 altivec_deps="ppc"
1805 ppc4xx_deps="ppc"
1806 vsx_deps="altivec"
1807 power8_deps="vsx"
1808
1809 cpunop_deps="i686"
1810 x86_64_select="i686"
1811 x86_64_suggest="fast_cmov"
1812
1813 amd3dnow_deps="mmx"
1814 amd3dnowext_deps="amd3dnow"
1815 i686_deps="x86"
1816 mmx_deps="x86"
1817 mmxext_deps="mmx"
1818 sse_deps="mmxext"
1819 sse2_deps="sse"
1820 sse3_deps="sse2"
1821 ssse3_deps="sse3"
1822 sse4_deps="ssse3"
1823 sse42_deps="sse4"
1824 avx_deps="sse42"
1825 xop_deps="avx"
1826 fma3_deps="avx"
1827 fma4_deps="avx"
1828 avx2_deps="avx"
1829
1830 mmx_external_deps="yasm"
1831 mmx_inline_deps="inline_asm"
1832 mmx_suggest="mmx_external mmx_inline"
1833
1834 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1835 eval dep=\$${ext}_deps
1836 eval ${ext}_external_deps='"${dep}_external"'
1837 eval ${ext}_inline_deps='"${dep}_inline"'
1838 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1839 done
1840
1841 aligned_stack_if_any="aarch64 ppc x86"
1842 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1843 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1844 fast_unaligned_if_any="aarch64 ppc x86"
1845 simd_align_16_if_any="altivec neon sse"
1846
1847 # system capabilities
1848 symver_if_any="symver_asm_label symver_gnu_asm"
1849 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1850
1851 # threading support
1852 atomics_gcc_if="sync_val_compare_and_swap"
1853 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1854 atomics_win32_if="MemoryBarrier"
1855 atomics_native_if_any="$ATOMICS_LIST"
1856 w32threads_deps="atomics_native"
1857 threads_if_any="$THREADS_LIST"
1858
1859 # subsystems
1860 dct_select="rdft"
1861 dirac_parse_select="golomb"
1862 error_resilience_select="me_cmp"
1863 faandct_deps="faan fdctdsp"
1864 faanidct_deps="faan idctdsp"
1865 h264dsp_select="startcode"
1866 intrax8_select="idctdsp"
1867 mdct_select="fft"
1868 rdft_select="fft"
1869 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1870 mpeg_er_select="error_resilience"
1871 mpegaudio_select="mpegaudiodsp"
1872 mpegaudiodsp_select="dct"
1873 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1874 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1875 nvenc_deps_any="dlopen LoadLibrary"
1876 nvenc_extralibs='$ldl'
1877 qsvdec_select="qsv"
1878 qsvenc_select="qsv"
1879 vc1dsp_select="h264chroma qpeldsp startcode"
1880
1881 # decoders / encoders
1882 aac_decoder_select="imdct15 mdct sinewin"
1883 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1884 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1885 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1886 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1887 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1888 adpcm_g722_decoder_select="g722dsp"
1889 adpcm_g722_encoder_select="g722dsp"
1890 aic_decoder_select="golomb idctdsp"
1891 alac_encoder_select="lpc"
1892 als_decoder_select="bswapdsp"
1893 amrnb_decoder_select="lsp"
1894 amrwb_decoder_select="lsp"
1895 amv_decoder_select="sp5x_decoder"
1896 ape_decoder_select="bswapdsp"
1897 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1898 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1899 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1900 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1901 atrac1_decoder_select="mdct sinewin"
1902 atrac3_decoder_select="mdct"
1903 atrac3p_decoder_select="mdct sinewin"
1904 bink_decoder_select="blockdsp hpeldsp"
1905 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1906 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1907 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1908 cllc_decoder_select="bswapdsp"
1909 comfortnoise_encoder_select="lpc"
1910 cook_decoder_select="audiodsp mdct sinewin"
1911 cscd_decoder_select="lzo"
1912 cscd_decoder_suggest="zlib"
1913 dca_decoder_select="fmtconvert mdct"
1914 dds_decoder_select="texturedsp"
1915 dnxhd_decoder_select="blockdsp idctdsp"
1916 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1917 dvvideo_decoder_select="dvprofile idctdsp"
1918 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1919 dxa_decoder_deps="zlib"
1920 dxv_decoder_select="lzf texturedsp"
1921 eac3_decoder_select="ac3_decoder"
1922 eac3_encoder_select="ac3_encoder"
1923 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1924 eatgq_decoder_select="aandcttables idctdsp"
1925 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1926 exr_decoder_deps="zlib"
1927 ffv1_decoder_select="golomb rangecoder"
1928 ffv1_encoder_select="rangecoder"
1929 ffvhuff_decoder_select="huffyuv_decoder"
1930 ffvhuff_encoder_select="huffyuv_encoder"
1931 fic_decoder_select="golomb"
1932 flac_decoder_select="flacdsp golomb"
1933 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1934 flashsv_decoder_deps="zlib"
1935 flashsv_encoder_deps="zlib"
1936 flashsv2_decoder_deps="zlib"
1937 flv_decoder_select="h263_decoder"
1938 flv_encoder_select="h263_encoder"
1939 fourxm_decoder_select="blockdsp bswapdsp"
1940 fraps_decoder_select="bswapdsp huffman"
1941 g2m_decoder_deps="zlib"
1942 g2m_decoder_select="blockdsp idctdsp jpegtables"
1943 h261_decoder_select="mpeg_er mpegvideo"
1944 h261_encoder_select="aandcttables mpegvideoenc"
1945 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1946 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1947 h263i_decoder_select="h263_decoder"
1948 h263p_encoder_select="h263_encoder"
1949 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1950 h264_decoder_suggest="error_resilience"
1951 h264_nvenc_encoder_deps="nvenc"
1952 h264_qsv_decoder_deps="libmfx"
1953 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1954 h264_qsv_encoder_deps="libmfx"
1955 h264_qsv_encoder_select="qsvenc"
1956 hap_decoder_select="snappy texturedsp"
1957 hap_encoder_deps="libsnappy"
1958 hap_encoder_select="texturedspenc"
1959 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1960 hevc_nvenc_encoder_deps="nvenc"
1961 hevc_qsv_encoder_deps="libmfx"
1962 hevc_qsv_decoder_deps="libmfx"
1963 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1964 hevc_qsv_encoder_select="qsvenc"
1965 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1966 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1967 iac_decoder_select="imc_decoder"
1968 imc_decoder_select="bswapdsp fft mdct sinewin"
1969 indeo3_decoder_select="hpeldsp"
1970 indeo4_decoder_select="ividsp"
1971 indeo5_decoder_select="ividsp"
1972 interplay_video_decoder_select="hpeldsp"
1973 jpegls_decoder_select="golomb mjpeg_decoder"
1974 jpegls_encoder_select="golomb"
1975 jv_decoder_select="blockdsp"
1976 lagarith_decoder_select="huffyuvdsp"
1977 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1978 loco_decoder_select="golomb"
1979 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1980 metasound_decoder_select="lsp mdct sinewin"
1981 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1982 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1983 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1984 mjpegb_decoder_select="mjpeg_decoder"
1985 mlp_decoder_select="mlp_parser"
1986 motionpixels_decoder_select="bswapdsp"
1987 mp1_decoder_select="mpegaudio"
1988 mp1float_decoder_select="mpegaudio"
1989 mp2_decoder_select="mpegaudio"
1990 mp2float_decoder_select="mpegaudio"
1991 mp3_decoder_select="mpegaudio"
1992 mp3adu_decoder_select="mpegaudio"
1993 mp3adufloat_decoder_select="mpegaudio"
1994 mp3float_decoder_select="mpegaudio"
1995 mp3on4_decoder_select="mpegaudio"
1996 mp3on4float_decoder_select="mpegaudio"
1997 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1998 mpc8_decoder_select="mpegaudiodsp"
1999 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2000 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2001 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2002 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2003 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2004 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2005 mpeg2_qsv_decoder_deps="libmfx"
2006 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2007 mpeg2_qsv_encoder_deps="libmfx"
2008 mpeg2_qsv_encoder_select="qsvenc"
2009 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2010 mpeg4_encoder_select="h263_encoder"
2011 msa1_decoder_select="mss34dsp"
2012 msmpeg4v1_decoder_select="h263_decoder"
2013 msmpeg4v2_decoder_select="h263_decoder"
2014 msmpeg4v2_encoder_select="h263_encoder"
2015 msmpeg4v3_decoder_select="h263_decoder"
2016 msmpeg4v3_encoder_select="h263_encoder"
2017 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2018 mts2_decoder_select="mss34dsp"
2019 mxpeg_decoder_select="mjpeg_decoder"
2020 nellymoser_decoder_select="mdct sinewin"
2021 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2022 nuv_decoder_select="idctdsp lzo"
2023 nvenc_h264_encoder_deps="nvenc"
2024 nvenc_hevc_encoder_deps="nvenc"
2025 on2avc_decoder_select="mdct"
2026 opus_decoder_deps="avresample"
2027 opus_decoder_select="imdct15"
2028 png_decoder_deps="zlib"
2029 png_encoder_deps="zlib"
2030 png_encoder_select="huffyuvencdsp"
2031 prores_decoder_select="idctdsp"
2032 prores_encoder_select="fdctdsp"
2033 qcelp_decoder_select="lsp"
2034 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2035 ra_144_encoder_select="audio_frame_queue lpc"
2036 ralf_decoder_select="golomb"
2037 rscc_decoder_deps="zlib"
2038 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2039 rv10_encoder_select="h263_encoder"
2040 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2041 rv20_encoder_select="h263_encoder"
2042 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2043 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2044 screenpresso_decoder_deps="zlib"
2045 shorten_decoder_select="golomb"
2046 sipr_decoder_select="lsp"
2047 sp5x_decoder_select="mjpeg_decoder"
2048 svq1_decoder_select="hpeldsp"
2049 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2050 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2051 svq3_decoder_suggest="zlib"
2052 tak_decoder_select="audiodsp"
2053 tdsc_decoder_deps="zlib"
2054 tdsc_decoder_select="mjpeg_decoder"
2055 theora_decoder_select="vp3_decoder"
2056 thp_decoder_select="mjpeg_decoder"
2057 tiff_decoder_suggest="zlib"
2058 tiff_encoder_suggest="zlib"
2059 truehd_decoder_select="mlp_decoder"
2060 truemotion2_decoder_select="bswapdsp"
2061 truespeech_decoder_select="bswapdsp"
2062 tscc_decoder_deps="zlib"
2063 txd_decoder_select="texturedsp"
2064 twinvq_decoder_select="mdct lsp sinewin"
2065 utvideo_decoder_select="bswapdsp"
2066 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2067 vble_decoder_select="huffyuvdsp"
2068 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2069 vc1image_decoder_select="vc1_decoder"
2070 vorbis_decoder_select="mdct"
2071 vorbis_encoder_select="mdct"
2072 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2073 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2074 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2075 vp6a_decoder_select="vp6_decoder"
2076 vp6f_decoder_select="vp6_decoder"
2077 vp7_decoder_select="h264pred videodsp vp8dsp"
2078 vp8_decoder_select="h264pred videodsp vp8dsp"
2079 vp9_decoder_select="videodsp"
2080 webp_decoder_select="vp8_decoder"
2081 wmapro_decoder_select="mdct sinewin wma_freqs"
2082 wmav1_decoder_select="mdct sinewin wma_freqs"
2083 wmav1_encoder_select="mdct sinewin wma_freqs"
2084 wmav2_decoder_select="mdct sinewin wma_freqs"
2085 wmav2_encoder_select="mdct sinewin wma_freqs"
2086 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2087 wmv1_decoder_select="h263_decoder"
2088 wmv1_encoder_select="h263_encoder"
2089 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2090 wmv2_encoder_select="h263_encoder wmv2dsp"
2091 wmv3_decoder_select="vc1_decoder"
2092 wmv3image_decoder_select="wmv3_decoder"
2093 zerocodec_decoder_deps="zlib"
2094 zlib_decoder_deps="zlib"
2095 zlib_encoder_deps="zlib"
2096 zmbv_decoder_deps="zlib"
2097 zmbv_encoder_deps="zlib"
2098
2099 # hardware accelerators
2100 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2101 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2102 vaapi_deps="va_va_h"
2103 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2104 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2105 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2106
2107 h263_vaapi_hwaccel_deps="vaapi"
2108 h263_vaapi_hwaccel_select="h263_decoder"
2109 h264_d3d11va_hwaccel_deps="d3d11va"
2110 h264_d3d11va_hwaccel_select="h264_decoder"
2111 h264_dxva2_hwaccel_deps="dxva2"
2112 h264_dxva2_hwaccel_select="h264_decoder"
2113 h264_mmal_decoder_deps="mmal"
2114 h264_mmal_hwaccel_deps="mmal"
2115 h264_mmal_decoder_select="h264_decoder"
2116 h264_mmal_encoder_deps="mmal"
2117 h264_qsv_hwaccel_deps="libmfx"
2118 h264_vaapi_hwaccel_deps="vaapi"
2119 h264_vaapi_hwaccel_select="h264_decoder"
2120 h264_vda_hwaccel_deps="vda"
2121 h264_vda_hwaccel_select="h264_decoder"
2122 h264_vda_old_hwaccel_deps="vda"
2123 h264_vda_old_hwaccel_select="h264_decoder"
2124 h264_vdpau_hwaccel_deps="vdpau"
2125 h264_vdpau_hwaccel_select="h264_decoder"
2126 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2127 hevc_d3d11va_hwaccel_select="hevc_decoder"
2128 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2129 hevc_dxva2_hwaccel_select="hevc_decoder"
2130 hevc_qsv_hwaccel_deps="libmfx"
2131 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2132 hevc_vdpau_hwaccel_select="hevc_decoder"
2133 mpeg1_vdpau_hwaccel_deps="vdpau"
2134 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2135 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2136 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2137 mpeg2_dxva2_hwaccel_deps="dxva2"
2138 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2139 mpeg2_qsv_hwaccel_deps="libmfx"
2140 mpeg2_vaapi_hwaccel_deps="vaapi"
2141 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2142 mpeg2_vdpau_hwaccel_deps="vdpau"
2143 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2144 mpeg4_vaapi_hwaccel_deps="vaapi"
2145 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2146 mpeg4_vdpau_hwaccel_deps="vdpau"
2147 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2148 vc1_d3d11va_hwaccel_deps="d3d11va"
2149 vc1_d3d11va_hwaccel_select="vc1_decoder"
2150 vc1_dxva2_hwaccel_deps="dxva2"
2151 vc1_dxva2_hwaccel_select="vc1_decoder"
2152 vc1_vaapi_hwaccel_deps="vaapi"
2153 vc1_vaapi_hwaccel_select="vc1_decoder"
2154 vc1_vdpau_hwaccel_deps="vdpau"
2155 vc1_vdpau_hwaccel_select="vc1_decoder"
2156 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2157 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2158 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2159 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2160
2161 # parsers
2162 h264_parser_select="h264_decoder"
2163 hevc_parser_select="golomb"
2164 mpegvideo_parser_select="mpegvideo"
2165 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2166 vc1_parser_select="vc1dsp"
2167
2168 # bitstream_filters
2169 mjpeg2jpeg_bsf_select="jpegtables"
2170
2171 # external libraries
2172 libdcadec_decoder_deps="libdcadec"
2173 libfaac_encoder_deps="libfaac"
2174 libfaac_encoder_select="audio_frame_queue"
2175 libfdk_aac_decoder_deps="libfdk_aac"
2176 libfdk_aac_encoder_deps="libfdk_aac"
2177 libfdk_aac_encoder_select="audio_frame_queue"
2178 libgsm_decoder_deps="libgsm"
2179 libgsm_encoder_deps="libgsm"
2180 libgsm_ms_decoder_deps="libgsm"
2181 libgsm_ms_encoder_deps="libgsm"
2182 libilbc_decoder_deps="libilbc"
2183 libilbc_encoder_deps="libilbc"
2184 libkvazaar_encoder_deps="libkvazaar"
2185 libmp3lame_encoder_deps="libmp3lame"
2186 libmp3lame_encoder_select="audio_frame_queue"
2187 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2188 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2189 libopencore_amrnb_encoder_select="audio_frame_queue"
2190 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2191 libopenh264_encoder_deps="libopenh264"
2192 libopenjpeg_decoder_deps="libopenjpeg"
2193 libopenjpeg_encoder_deps="libopenjpeg"
2194 libopus_decoder_deps="libopus"
2195 libopus_encoder_deps="libopus"
2196 libopus_encoder_select="audio_frame_queue"
2197 libschroedinger_decoder_deps="libschroedinger"
2198 libschroedinger_encoder_deps="libschroedinger"
2199 libspeex_decoder_deps="libspeex"
2200 libspeex_encoder_deps="libspeex"
2201 libspeex_encoder_select="audio_frame_queue"
2202 libtheora_encoder_deps="libtheora"
2203 libtwolame_encoder_deps="libtwolame"
2204 libvo_aacenc_encoder_deps="libvo_aacenc"
2205 libvo_aacenc_encoder_select="audio_frame_queue"
2206 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2207 libvorbis_encoder_deps="libvorbis"
2208 libvorbis_encoder_select="audio_frame_queue"
2209 libvpx_vp8_decoder_deps="libvpx"
2210 libvpx_vp8_encoder_deps="libvpx"
2211 libvpx_vp9_decoder_deps="libvpx"
2212 libvpx_vp9_encoder_deps="libvpx"
2213 libwavpack_encoder_deps="libwavpack"
2214 libwebp_encoder_deps="libwebp"
2215 libx262_encoder_deps="libx262"
2216 libx264_encoder_deps="libx264"
2217 libx265_encoder_deps="libx265"
2218 libxavs_encoder_deps="libxavs"
2219 libxvid_encoder_deps="libxvid"
2220
2221 # demuxers / muxers
2222 ac3_demuxer_select="ac3_parser"
2223 asf_demuxer_select="riffdec"
2224 asf_muxer_select="riffenc"
2225 asf_stream_muxer_select="asf_muxer"
2226 avi_demuxer_select="iso_media riffdec"
2227 avi_muxer_select="riffenc"
2228 avisynth_demuxer_deps="avisynth"
2229 avisynth_demuxer_select="riffdec"
2230 caf_demuxer_select="iso_media riffdec"
2231 dash_muxer_select="mp4_muxer"
2232 dirac_demuxer_select="dirac_parser"
2233 dv_demuxer_select="dvprofile"
2234 dv_muxer_select="dvprofile"
2235 dxa_demuxer_select="riffdec"
2236 eac3_demuxer_select="ac3_parser"
2237 f4v_muxer_select="mov_muxer"
2238 flac_demuxer_select="flac_parser"
2239 hds_muxer_select="flv_muxer"
2240 hls_muxer_select="mpegts_muxer"
2241 ipod_muxer_select="mov_muxer"
2242 ismv_muxer_select="mov_muxer"
2243 matroska_audio_muxer_select="matroska_muxer"
2244 matroska_demuxer_select="iso_media riffdec"
2245 matroska_demuxer_suggest="bzlib lzo zlib"
2246 matroska_muxer_select="iso_media riffenc"
2247 mmf_muxer_select="riffenc"
2248 mov_demuxer_select="iso_media riffdec"
2249 mov_demuxer_suggest="zlib"
2250 mov_muxer_select="iso_media riffenc rtpenc_chain"
2251 mp3_demuxer_select="mpegaudio_parser"
2252 mp4_muxer_select="mov_muxer"
2253 mpegts_demuxer_select="iso_media"
2254 mpegts_muxer_select="adts_muxer latm_muxer"
2255 mpegtsraw_demuxer_select="mpegts_demuxer"
2256 mxf_d10_muxer_select="mxf_muxer"
2257 nut_muxer_select="riffenc"
2258 nuv_demuxer_select="riffdec"
2259 oga_muxer_select="ogg_muxer"
2260 ogg_demuxer_select="dirac_parse"
2261 opus_muxer_select="ogg_muxer"
2262 psp_muxer_select="mov_muxer"
2263 rtp_demuxer_select="sdp_demuxer"
2264 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2265 rtsp_demuxer_select="http_protocol rtpdec"
2266 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2267 sap_demuxer_select="sdp_demuxer"
2268 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2269 sdp_demuxer_select="rtpdec"
2270 smoothstreaming_muxer_select="ismv_muxer"
2271 spdif_muxer_select="aac_parser"
2272 spx_muxer_select="ogg_muxer"
2273 swf_demuxer_suggest="zlib"
2274 tak_demuxer_select="tak_parser"
2275 tg2_muxer_select="mov_muxer"
2276 tgp_muxer_select="mov_muxer"
2277 w64_demuxer_select="wav_demuxer"
2278 wav_demuxer_select="riffdec"
2279 wav_muxer_select="riffenc"
2280 webm_muxer_select="iso_media riffenc"
2281 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2282 wtv_demuxer_select="mpegts_demuxer riffdec"
2283 xmv_demuxer_select="riffdec"
2284 xwma_demuxer_select="riffdec"
2285
2286 # indevs / outdevs
2287 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2288 alsa_outdev_deps="alsa_asoundlib_h"
2289 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2290 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2291 dv1394_indev_deps="dv1394"
2292 dv1394_indev_select="dv_demuxer"
2293 fbdev_indev_deps="linux_fb_h"
2294 jack_indev_deps="jack_jack_h pthreads"
2295 libcdio_indev_deps="libcdio"
2296 libdc1394_indev_deps="libdc1394"
2297 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2298 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2299 pulse_indev_deps="libpulse"
2300 sndio_indev_deps="sndio_h"
2301 sndio_outdev_deps="sndio_h"
2302 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2303 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2304 vfwcap_indev_extralibs="-lavicap32"
2305 x11grab_indev_deps="x11grab"
2306 x11grab_xcb_indev_deps="libxcb"
2307
2308 # protocols
2309 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2310 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2311 ffrtmpcrypt_protocol_select="tcp_protocol"
2312 ffrtmphttp_protocol_deps="!librtmp_protocol"
2313 ffrtmphttp_protocol_select="http_protocol"
2314 gopher_protocol_select="network"
2315 http_protocol_select="tcp_protocol"
2316 httpproxy_protocol_select="tcp_protocol"
2317 https_protocol_select="tls_protocol"
2318 icecast_protocol_select="http_protocol"
2319 librtmp_protocol_deps="librtmp"
2320 librtmpe_protocol_deps="librtmp"
2321 librtmps_protocol_deps="librtmp"
2322 librtmpt_protocol_deps="librtmp"
2323 librtmpte_protocol_deps="librtmp"
2324 mmsh_protocol_select="http_protocol"
2325 mmst_protocol_select="network"
2326 rtmp_protocol_deps="!librtmp_protocol"
2327 rtmp_protocol_select="tcp_protocol"
2328 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2329 rtmps_protocol_deps="!librtmp_protocol"
2330 rtmps_protocol_select="tls_protocol"
2331 rtmpt_protocol_select="ffrtmphttp_protocol"
2332 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2333 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2334 rtp_protocol_select="udp_protocol"
2335 sctp_protocol_deps="struct_sctp_event_subscribe"
2336 sctp_protocol_select="network"
2337 srtp_protocol_select="rtp_protocol srtp"
2338 tcp_protocol_select="network"
2339 tls_gnutls_protocol_deps="gnutls"
2340 tls_gnutls_protocol_select="tcp_protocol"
2341 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2342 tls_openssl_protocol_select="tcp_protocol"
2343 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2344 udp_protocol_select="network"
2345 unix_protocol_deps="sys_un_h"
2346 unix_protocol_select="network"
2347
2348 # filters
2349 blackframe_filter_deps="gpl"
2350 boxblur_filter_deps="gpl"
2351 bs2b_filter_deps="libbs2b"
2352 cropdetect_filter_deps="gpl"
2353 delogo_filter_deps="gpl"
2354 drawtext_filter_deps="libfreetype"
2355 frei0r_filter_deps="frei0r dlopen"
2356 frei0r_filter_extralibs='$ldl'
2357 frei0r_src_filter_deps="frei0r dlopen"
2358 frei0r_src_filter_extralibs='$ldl'
2359 hqdn3d_filter_deps="gpl"
2360 hwupload_cuda_filter_deps="cuda"
2361 interlace_filter_deps="gpl"
2362 ocv_filter_deps="libopencv"
2363 resample_filter_deps="avresample"
2364 scale_filter_deps="swscale"
2365 scale_npp_filter_deps="cuda libnpp"
2366 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2367
2368 # examples
2369 avcodec_example_deps="avcodec avutil"
2370 filter_audio_example_deps="avfilter avutil"
2371 metadata_example_deps="avformat avutil"
2372 output_example_deps="avcodec avformat avutil swscale"
2373 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2374 transcode_aac_example_deps="avcodec avformat avresample"
2375
2376 # libraries, in linking order
2377 avcodec_deps="avutil"
2378 avdevice_deps="avformat avcodec avutil"
2379 avfilter_deps="avutil"
2380 avformat_deps="avcodec avutil"
2381 avresample_deps="avutil"
2382 swscale_deps="avutil"
2383
2384 # programs
2385 avconv_deps="avcodec avfilter avformat avresample swscale"
2386 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2387 fps_filter null_filter resample_filter scale_filter
2388 setpts_filter trim_filter"
2389 avplay_deps="avcodec avfilter avformat avresample sdl"
2390 avplay_libs='$sdl_libs'
2391 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2392 avprobe_deps="avcodec avformat"
2393
2394 # documentation
2395 pod2man_deps="doc"
2396 texi2html_deps="doc"
2397
2398 # default parameters
2399
2400 logfile="config.log"
2401
2402 # installation paths
2403 prefix_default="/usr/local"
2404 bindir_default='${prefix}/bin'
2405 datadir_default='${prefix}/share/avconv'
2406 docdir_default='${prefix}/share/doc/libav'
2407 incdir_default='${prefix}/include'
2408 libdir_default='${prefix}/lib'
2409 mandir_default='${prefix}/share/man'
2410 shlibdir_default="$libdir_default"
2411
2412 # toolchain
2413 ar_default="ar"
2414 cc_default="gcc"
2415 host_cc_default="gcc"
2416 cp_f="cp -f"
2417 ln_s="ln -s -f"
2418 nm_default="nm -g"
2419 objformat="elf"
2420 pkg_config_default=pkg-config
2421 ranlib="ranlib"
2422 strip="strip"
2423 yasmexe="yasm"
2424
2425 # machine
2426 arch_default=$(uname -m)
2427 cpu="generic"
2428 intrinsics="none"
2429
2430 # OS
2431 target_os_default=$(tolower $(uname -s))
2432 host_os=$target_os_default
2433
2434 # configurable options
2435 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2436
2437 enable asm
2438 enable debug
2439 enable doc
2440 enable faan faandct faanidct
2441 enable optimizations
2442 enable safe_bitstream_reader
2443 enable static
2444 enable swscale_alpha
2445 enable valgrind_backtrace
2446
2447 # By default, enable only those hwaccels that have no external dependencies.
2448 enable d3d11va dxva2 vda vdpau
2449
2450 # build settings
2451 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2452 LIBPREF="lib"
2453 LIBSUF=".a"
2454 FULLNAME='$(NAME)$(BUILDSUF)'
2455 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2456 SLIBPREF="lib"
2457 SLIBSUF=".so"
2458 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2459 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2460 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2461 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2462 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2463 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2464
2465 asflags_filter=echo
2466 cflags_filter=echo
2467 ldflags_filter=echo
2468
2469 AS_C='-c'
2470 AS_O='-o $@'
2471 CC_C='-c'
2472 CC_E='-E -o $@'
2473 CC_O='-o $@'
2474 OBJCC_C='-c'
2475 OBJCC_E='-E -o $@'
2476 OBJCC_O='-o $@'
2477 LD_O='-o $@'
2478 LD_LIB='-l%'
2479 LD_PATH='-L'
2480 HOSTCC_C='-c'
2481 HOSTCC_E='-E -o $@'
2482 HOSTCC_O='-o $@'
2483 HOSTLD_O='-o $@'
2484
2485 host_libs='-lm'
2486 host_cflags_filter=echo
2487 host_ldflags_filter=echo
2488
2489 target_path='$(CURDIR)'
2490
2491 # since the object filename is not given with the -MM flag, the compiler
2492 # is only able to print the basename, and we must add the path ourselves
2493 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2494 DEPFLAGS='-MM'
2495
2496 # find source path
2497 if test -f configure; then
2498 source_path=.
2499 else
2500 source_path=$(cd $(dirname "$0"); pwd)
2501 echo "$source_path" | grep -q '[[:blank:]]' &&
2502 die "Out of tree builds are impossible with whitespace in source path."
2503 test -e "$source_path/config.h" &&
2504 die "Out of tree builds are impossible with config.h in source dir."
2505 fi
2506
2507 for v in "$@"; do
2508 r=${v#*=}
2509 l=${v%"$r"}
2510 r=$(sh_quote "$r")
2511 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2512 done
2513
2514 find_things(){
2515 thing=$1
2516 pattern=$2
2517 file=$source_path/$3
2518 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2519 }
2520
2521 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2522 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2523 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2524 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2525 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2526 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2527 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2528 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2529 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2530
2531 find_things_extern(){
2532 thing=$1
2533 pattern=$2
2534 file=$source_path/$3
2535 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2536 }
2537
2538 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2539 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2540
2541 ALL_COMPONENTS="
2542 $BSF_LIST
2543 $DECODER_LIST
2544 $DEMUXER_LIST
2545 $ENCODER_LIST
2546 $FILTER_LIST
2547 $HWACCEL_LIST
2548 $INDEV_LIST
2549 $MUXER_LIST
2550 $OUTDEV_LIST
2551 $PARSER_LIST
2552 $PROTOCOL_LIST
2553 "
2554
2555 for n in $COMPONENT_LIST; do
2556 v=$(toupper ${n%s})_LIST
2557 eval enable \$$v
2558 eval ${n}_if_any="\$$v"
2559 done
2560
2561 enable $ARCH_EXT_LIST
2562
2563 die_unknown(){
2564 echo "Unknown option \"$1\"."
2565 echo "See $0 --help for available options."
2566 exit 1
2567 }
2568
2569 print_3_columns() {
2570 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2571 }
2572
2573 show_list() {
2574 suffix=_$1
2575 shift
2576 echo $* | sed s/$suffix//g | print_3_columns
2577 exit 0
2578 }
2579
2580 rand_list(){
2581 IFS=', '
2582 set -- $*
2583 unset IFS
2584 for thing; do
2585 comp=${thing%:*}
2586 prob=${thing#$comp}
2587 prob=${prob#:}
2588 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2589 echo "prob ${prob:-0.5}"
2590 printf '%s\n' $comp
2591 done
2592 }
2593
2594 do_random(){
2595 action=$1
2596 shift
2597 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2598 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2599 }
2600
2601 for opt do
2602 optval="${opt#*=}"
2603 case "$opt" in
2604 --extra-ldflags=*)
2605 add_ldflags $optval
2606 ;;
2607 --extra-ldexeflags=*)
2608 add_ldexeflags $optval
2609 ;;
2610 --extra-libs=*)
2611 add_extralibs $optval
2612 ;;
2613 --disable-devices)
2614 disable $INDEV_LIST $OUTDEV_LIST
2615 ;;
2616 --enable-debug=*)
2617 debuglevel="$optval"
2618 ;;
2619 --disable-programs)
2620 disable $PROGRAM_LIST
2621 ;;
2622 --disable-everything)
2623 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2624 ;;
2625 --disable-all)
2626 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2627 disable $LIBRARY_LIST $PROGRAM_LIST doc
2628 ;;
2629 --enable-random|--disable-random)
2630 action=${opt%%-random}
2631 do_random ${action#--} $COMPONENT_LIST
2632 ;;
2633 --enable-random=*|--disable-random=*)
2634 action=${opt%%-random=*}
2635 do_random ${action#--} $optval
2636 ;;
2637 --enable-*=*|--disable-*=*)
2638 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2639 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2640 eval list=\$$(toupper $thing)_LIST
2641 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2642 $action $(filter "$name" $list)
2643 ;;
2644 --enable-avserver|--disable-avserver*)
2645 warn "avserver has been removed, the ${opt} option is only"\
2646 "provided for compatibility and will be removed in the future"
2647 ;;
2648 --enable-?*|--disable-?*)
2649 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2650 if is_in $option $COMPONENT_LIST; then
2651 test $action = disable && action=unset
2652 eval $action \$$(toupper ${option%s})_LIST
2653 elif is_in $option $CMDLINE_SELECT; then
2654 $action $option
2655 else
2656 die_unknown $opt
2657 fi
2658 ;;
2659 --list-*)
2660 NAME="${opt#--list-}"
2661 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2662 NAME=${NAME%s}
2663 eval show_list $NAME \$$(toupper $NAME)_LIST
2664 ;;
2665 --help|-h) show_help
2666 ;;
2667 *)
2668 optname="${opt%%=*}"
2669 optname="${optname#--}"
2670 optname=$(echo "$optname" | sed 's/-/_/g')
2671 if is_in $optname $CMDLINE_SET; then
2672 eval $optname='$optval'
2673 elif is_in $optname $CMDLINE_APPEND; then
2674 append $optname "$optval"
2675 else
2676 die_unknown $opt
2677 fi
2678 ;;
2679 esac
2680 done
2681
2682 for e in $env; do
2683 eval "export $e"
2684 done
2685
2686 disabled logging && logfile=/dev/null
2687
2688 # Disable all the library-specific components if the library itself
2689 # is disabled, see AVCODEC_LIST and following _LIST variables.
2690
2691 disable_components(){
2692 disabled ${1} && disable $(
2693 eval components="\$$(toupper ${1})_COMPONENTS"
2694 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2695 )
2696 }
2697
2698 map 'disable_components $v' $LIBRARY_LIST
2699
2700 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2701 set >> $logfile
2702
2703 case "$toolchain" in
2704 *-asan)
2705 cc_default="${toolchain%-asan}"
2706 add_cflags -fsanitize=address
2707 add_ldflags -fsanitize=address
2708 ;;
2709 *-msan)
2710 cc_default="${toolchain%-msan}"
2711 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2712 add_ldflags -fsanitize=memory
2713 ;;
2714 *-tsan)
2715 cc_default="${toolchain%-tsan}"
2716 add_cflags -fsanitize=thread -pie
2717 add_ldflags -fsanitize=thread -pie
2718 case "$toolchain" in
2719 gcc-tsan)
2720 add_cflags -fPIC
2721 add_ldflags -fPIC
2722 ;;
2723 esac
2724 ;;
2725 *-usan)
2726 cc_default="${toolchain%-usan}"
2727 add_cflags -fsanitize=undefined
2728 add_ldflags -fsanitize=undefined
2729 case "$toolchain" in
2730 clang-usan)
2731 add_cflags -O1
2732 ;;
2733 esac
2734 ;;
2735 valgrind-*)
2736 target_exec_default="valgrind"
2737 case "$toolchain" in
2738 valgrind-massif)
2739 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2740 ;;
2741 valgrind-memcheck)
2742 target_exec_args="--track-origins=yes --leak-check=full"
2743 ;;
2744 esac
2745 ;;
2746 msvc)
2747 # Check whether the current MSVC version needs the C99 converter.
2748 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2749 # support enough of C99 to build libav. Default to the new
2750 # behaviour if the regexp was unable to match anything, since this
2751 # successfully parses the version number of existing supported
2752 # versions that require the converter (MSVC 2010 and 2012).
2753 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2754 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2755 cc_default="cl"
2756 else
2757 cc_default="c99wrap cl"
2758 fi
2759 ld_default="$source_path/compat/windows/mslink"
2760 nm_default="dumpbin -symbols"
2761 ar_default="lib"
2762 case "$arch" in
2763 arm*)
2764 as_default="armasm"
2765 ;;
2766 esac
2767 target_os_default="win32"
2768 # Use a relative path for TMPDIR. This makes sure all the
2769 # ffconf temp files are written with a relative path, avoiding
2770 # issues with msys/win32 path conversion for MSVC parameters
2771 # such as -Fo<file> or -out:<file>.
2772 TMPDIR=.
2773 ;;
2774 icl)
2775 cc_default="icl"
2776 ld_default="xilink"
2777 nm_default="dumpbin -symbols"
2778 ar_default="xilib"
2779 target_os_default="win32"
2780 TMPDIR=.
2781 ;;
2782 gcov)
2783 add_cflags -fprofile-arcs -ftest-coverage
2784 add_ldflags -fprofile-arcs -ftest-coverage
2785 ;;
2786 llvm-cov)
2787 add_cflags -fprofile-arcs -ftest-coverage
2788 add_ldflags --coverage
2789 ;;
2790 hardened)
2791 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2792 add_cflags -fno-strict-overflow -fstack-protector-all
2793 add_ldflags -Wl,-z,relro -Wl,-z,now
2794 ;;
2795 ?*)
2796 die "Unknown toolchain $toolchain"
2797 ;;
2798 esac
2799
2800 test -n "$cross_prefix" && enable cross_compile
2801
2802 if enabled cross_compile; then
2803 test -n "$arch" && test -n "$target_os" ||
2804 die "Must specify target arch and OS when cross-compiling"
2805 fi
2806
2807 ar_default="${cross_prefix}${ar_default}"
2808 cc_default="${cross_prefix}${cc_default}"
2809 occ_default="${cross_prefix}${occ_default}"
2810 nm_default="${cross_prefix}${nm_default}"
2811 pkg_config_default="${cross_prefix}${pkg_config_default}"
2812 ranlib="${cross_prefix}${ranlib}"
2813 strip="${cross_prefix}${strip}"
2814
2815 sysinclude_default="${sysroot}/usr/include"
2816
2817 set_default arch cc pkg_config sysinclude target_exec target_os
2818 enabled cross_compile || host_cc_default=$cc
2819 set_default host_cc
2820
2821 if ! $pkg_config --version >/dev/null 2>&1; then
2822 warn "$pkg_config not found, library detection may fail."
2823 pkg_config=false
2824 fi
2825
2826 exesuf() {
2827 case $1 in
2828 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2829 esac
2830 }
2831
2832 EXESUF=$(exesuf $target_os)
2833 HOSTEXESUF=$(exesuf $host_os)
2834
2835 # set temporary file name
2836 : ${TMPDIR:=$TEMPDIR}
2837 : ${TMPDIR:=$TMP}
2838 : ${TMPDIR:=/tmp}
2839
2840 if ! check_cmd mktemp -u XXXXXX; then
2841 # simple replacement for missing mktemp
2842 # NOT SAFE FOR GENERAL USE
2843 mktemp(){
2844 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2845 }
2846 fi
2847
2848 tmpfile(){
2849 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2850 (set -C; exec > $tmp) 2>/dev/null ||
2851 die "Unable to create temporary file in $TMPDIR."
2852 append TMPFILES $tmp
2853 eval $1=$tmp
2854 }
2855
2856 trap 'rm -f -- $TMPFILES' EXIT
2857
2858 tmpfile TMPASM .asm
2859 tmpfile TMPC .c
2860 tmpfile TMPE $EXESUF
2861 tmpfile TMPH .h
2862 tmpfile TMPO .o
2863 tmpfile TMPS .S
2864 tmpfile TMPSH .sh
2865 tmpfile TMPV .ver
2866
2867 unset -f mktemp
2868
2869 chmod +x $TMPE
2870
2871 # make sure we can execute files in $TMPDIR
2872 cat > $TMPSH 2>> $logfile <<EOF
2873 #! /bin/sh
2874 EOF
2875 chmod +x $TMPSH >> $logfile 2>&1
2876 if ! $TMPSH >> $logfile 2>&1; then
2877 cat <<EOF
2878 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2879 variable to another directory and make sure that it is not mounted noexec.
2880 EOF
2881 die "Sanity test failed."
2882 fi
2883
2884 armasm_flags(){
2885 for flag; do
2886 case $flag in
2887 # Filter out MSVC cl.exe options from cflags that shouldn't
2888 # be passed to gas-preprocessor
2889 -M[TD]*) ;;
2890 *) echo $flag ;;
2891 esac
2892 done
2893 }
2894
2895 ccc_flags(){
2896 for flag; do
2897 case $flag in
2898 -std=c99) echo -c99 ;;
2899 -mcpu=*) echo -arch ${flag#*=} ;;
2900 -mieee) echo -ieee ;;
2901 -O*|-fast) echo $flag ;;
2902 -fno-math-errno) echo -assume nomath_errno ;;
2903 -g) echo -g3 ;;
2904 -Wall) echo -msg_enable level2 ;;
2905 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2906 -Wl,*) echo $flag ;;
2907 -f*|-W*) ;;
2908 *) echo $flag ;;
2909 esac
2910 done
2911 }
2912
2913 cparser_flags(){
2914 for flag; do
2915 case $flag in
2916 -Wno-switch) echo -Wno-switch-enum ;;
2917 -Wno-format-zero-length) ;;
2918 -Wdisabled-optimization) ;;
2919 -Wno-pointer-sign) echo -Wno-other ;;
2920 *) echo $flag ;;
2921 esac
2922 done
2923 }
2924
2925 msvc_common_flags(){
2926 for flag; do
2927 case $flag in
2928 # In addition to specifying certain flags under the compiler
2929 # specific filters, they must be specified here as well or else the
2930 # generic catch all at the bottom will print the original flag.
2931 -Wall) ;;
2932 -std=c99) ;;
2933 # Common flags
2934 -fomit-frame-pointer) ;;
2935 -g) echo -Z7 ;;
2936 -fno-math-errno) ;;
2937 -fno-common) ;;
2938 -fno-signed-zeros) ;;
2939 -fPIC) ;;
2940 -mthumb) ;;
2941 -march=*) ;;
2942 -lz) echo zlib.lib ;;
2943 -lavifil32) echo vfw32.lib ;;
2944 -lavicap32) echo vfw32.lib user32.lib ;;
2945 -lx264) echo libx264.lib ;;
2946 -l*) echo ${flag#-l}.lib ;;
2947 -L*) echo -libpath:${flag#-L} ;;
2948 *) echo $flag ;;
2949 esac
2950 done
2951 }
2952
2953 msvc_flags(){
2954 msvc_common_flags "$@"
2955 for flag; do
2956 case $flag in
2957 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2958 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2959 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2960 -wd4273 -wd4554 -wd4701 ;;
2961 esac
2962 done
2963 }
2964
2965 icl_flags(){
2966 msvc_common_flags "$@"
2967 for flag; do
2968 case $flag in
2969 # Despite what Intel's documentation says -Wall, which is supported
2970 # on Windows, does enable remarks so disable them here.
2971 -Wall) echo $flag -Qdiag-disable:remark ;;
2972 -std=c99) echo -Qstd=c99 ;;
2973 esac
2974 done
2975 }
2976
2977 pgi_flags(){
2978 for flag; do
2979 case $flag in
2980 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2981 -fomit-frame-pointer) echo -Mnoframe ;;
2982 -g) echo -gopt ;;
2983 *) echo $flag ;;
2984 esac
2985 done
2986 }
2987
2988 suncc_flags(){
2989 for flag; do
2990 case $flag in
2991 -march=*|-mcpu=*)
2992 case "${flag#*=}" in
2993 native) echo -xtarget=native ;;
2994 v9|niagara) echo -xarch=sparc ;;
2995 ultrasparc) echo -xarch=sparcvis ;;
2996 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2997 i586|pentium) echo -xchip=pentium ;;
2998 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2999 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3000 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3001 pentium4*) echo -xtarget=pentium4 ;;
3002 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3003 *-sse3) echo -xarch=sse3 ;;
3004 core2) echo -xarch=ssse3 -xchip=core2 ;;
3005 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3006 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3007 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3008 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3009 k8|opteron|athlon64|athlon-fx)
3010 echo -xarch=sse2a ;;
3011 athlon*) echo -xarch=pentium_proa ;;
3012 esac
3013 ;;
3014 -std=c99) echo -xc99 ;;
3015 -fomit-frame-pointer) echo -xregs=frameptr ;;
3016 -fPIC) echo -KPIC -xcode=pic32 ;;
3017 -W*,*) echo $flag ;;
3018 -f*-*|-W*|-mimpure-text) ;;
3019 -shared) echo -G ;;
3020 *) echo $flag ;;
3021 esac
3022 done
3023 }
3024
3025 tms470_flags(){
3026 for flag; do
3027 case $flag in
3028 -march=*|-mcpu=*)
3029 case "${flag#*=}" in
3030 armv7-a|cortex-a*) echo -mv=7a8 ;;
3031 armv7-r|cortex-r*) echo -mv=7r4 ;;
3032 armv7-m|cortex-m*) echo -mv=7m3 ;;
3033 armv6*|arm11*) echo -mv=6 ;;
3034 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3035 echo -mv=5e ;;
3036 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3037 esac
3038 ;;
3039 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3040 -mfpu=vfp) echo --float_support=vfpv2 ;;
3041 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3042 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3043 -msoft-float) echo --float_support=vfplib ;;
3044 -O[0-3]|-mf=*) echo $flag ;;
3045 -g) echo -g -mn ;;
3046 -pds=*) echo $flag ;;
3047 -D*|-I*) echo $flag ;;
3048 --gcc|--abi=*) echo $flag ;;
3049 -me) echo $flag ;;
3050 esac
3051 done
3052 }
3053
3054 probe_cc(){
3055 pfx=$1
3056 _cc=$2
3057
3058 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3059 unset _ld_o _ldflags _ld_lib _ld_path
3060 unset _depflags _DEPCMD _DEPFLAGS
3061 _flags_filter=echo
3062
3063 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3064 _type=llvm_gcc
3065 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3066 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3067 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3068 _cflags_speed='-O3'
3069 _cflags_size='-Os'
3070 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3071 _type=gcc
3072 gcc_version=$($_cc --version | head -n1)
3073 gcc_basever=$($_cc -dumpversion)
3074 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3075 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3076 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3077 if ! $_cc -dumpversion | grep -q '^2\.'; then
3078 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3079 fi
3080 _cflags_speed='-O3'
3081 _cflags_size='-Os'
3082 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3083 _type=icc
3084 _ident=$($_cc --version | head -n1)
3085 _depflags='-MMD'
3086 _cflags_speed='-O3'
3087 _cflags_size='-Os'
3088 _cflags_noopt='-O1'
3089 elif $_cc -v 2>&1 | grep -q xlc; then
3090 _type=xlc
3091 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3092 _cflags_speed='-O5'
3093 _cflags_size='-O5 -qcompact'
3094 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3095 _type=ccc
3096 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3097 _DEPFLAGS='-M'
3098 _cflags_speed='-fast'
3099 _cflags_size='-O1'
3100 _flags_filter=ccc_flags
3101 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3102 test -d "$sysroot" || die "No valid sysroot specified."
3103 _type=armcc
3104 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3105 armcc_conf="$PWD/armcc.conf"
3106 $_cc --arm_linux_configure \
3107 --arm_linux_config_file="$armcc_conf" \
3108 --configure_sysroot="$sysroot" \
3109 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3110 die "Error creating armcc configuration file."
3111 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3112 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3113 as_default="${cross_prefix}gcc"
3114 _depflags='-MMD'
3115 _cflags_speed='-O3'
3116 _cflags_size='-Os'
3117 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3118 _type=tms470
3119 _ident=$($_cc -version | head -n1 | tr -s ' ')
3120 _flags='--gcc --abi=eabi -me'
3121 _cc_e='-ppl -fe=$@'
3122 _cc_o='-fe=$@'
3123 _depflags='-ppa -ppd=$(@:.o=.d)'
3124 _cflags_speed='-O3 -mf=5'
3125 _cflags_size='-O3 -mf=2'
3126 _flags_filter=tms470_flags
3127 elif $_cc -v 2>&1 | grep -q clang; then
3128 _type=clang
3129 _ident=$($_cc --version 2>/dev/null | head -n1)
3130 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3131 _cflags_speed='-O3'
3132 _cflags_size='-Os'
3133 elif $_cc -V 2>&1 | grep -q Sun; then
3134 _type=suncc
3135 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3136 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3137 _DEPFLAGS='-xM1 -xc99'
3138 _ldflags='-std=c99'
3139 _cflags_speed='-O5'
3140 _cflags_size='-O5 -xspace'
3141 _flags_filter=suncc_flags
3142 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3143 _type=pathscale
3144 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3145 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3146 _cflags_speed='-O2'
3147 _cflags_size='-Os'
3148 _flags_filter='filter_out -Wdisabled-optimization'
3149 elif $_cc -v 2>&1 | grep -q Open64; then
3150 _type=open64
3151 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3152 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3153 _cflags_speed='-O2'
3154 _cflags_size='-Os'
3155 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3156 elif $_cc -V 2>&1 | grep -q Portland; then
3157 _type=pgi
3158 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3159 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3160 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3161 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3162 _cflags_noopt="-O1"
3163 _flags_filter=pgi_flags
3164 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3165 _type=armasm
3166 _ident=$($_cc | head -n1)
3167 # 4509: "This form of conditional instruction is deprecated"
3168 _flags="-nologo -ignore 4509"
3169 _flags_filter=armasm_flags
3170 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3171 _type=msvc
3172 _ident=$($_cc 2>&1 | head -n1)
3173 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3174 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3175 _cflags_speed="-O2"
3176 _cflags_size="-O1"
3177 if $_cc -nologo- 2>&1 | grep -q Linker; then
3178 _ld_o='-out:$@'
3179 else
3180 _ld_o='-Fe$@'
3181 fi
3182 _cc_o='-Fo$@'
3183 _cc_e='-P -Fi$@'
3184 _flags_filter=msvc_flags
3185 _ld_lib='lib%.a'
3186 _ld_path='-libpath:'
3187 _flags='-nologo'
3188 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3189 elif $_cc 2>&1 | grep -q Intel; then
3190 _type=icl
3191 _ident=$($_cc 2>&1 | head -n1)
3192 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3193 # Not only is O3 broken on 13.x+ but it is slower on all previous
3194 # versions (tested) as well.
3195 _cflags_speed="-O2"
3196 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3197 if $_cc 2>&1 | grep -q Linker; then
3198 _ld_o='-out:$@'
3199 else
3200 _ld_o='-Fe$@'
3201 fi
3202 _cc_o='-Fo$@'
3203 _cc_e='-P'
3204 _flags_filter=icl_flags
3205 _ld_lib='lib%.a'
3206 _ld_path='-libpath:'
3207 # -Qdiag-error to make icl error when seeing certain unknown arguments
3208 _flags='-nologo -Qdiag-error:4044,10157'
3209 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3210 # with MSVC which enables it by default.
3211 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3212 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3213 _type=cparser
3214 _ident=$($_cc --version | head -n1)
3215 _depflags='-MMD'
3216 _cflags_speed='-O4'
3217 _cflags_size='-O2'
3218 _flags_filter=cparser_flags
3219 fi
3220
3221 eval ${pfx}_type=\$_type
3222 eval ${pfx}_ident=\$_ident
3223 }
3224
3225 set_ccvars(){
3226 eval ${1}_C=\${_cc_c-\${${1}_C}}
3227 eval ${1}_E=\${_cc_e-\${${1}_E}}
3228 eval ${1}_O=\${_cc_o-\${${1}_O}}
3229
3230 if [ -n "$_depflags" ]; then
3231 eval ${1}_DEPFLAGS=\$_depflags
3232 else
3233 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3234 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3235 eval DEP${1}FLAGS=\$_flags
3236 fi
3237 }
3238
3239 probe_cc cc "$cc"
3240 cflags_filter=$_flags_filter
3241 cflags_speed=$_cflags_speed
3242 cflags_size=$_cflags_size
3243 cflags_noopt=$_cflags_noopt
3244 add_cflags $_flags $_cflags
3245 cc_ldflags=$_ldflags
3246 set_ccvars CC
3247
3248 probe_cc hostcc "$host_cc"
3249 host_cflags_filter=$_flags_filter
3250 add_host_cflags $_flags $_cflags
3251 set_ccvars HOSTCC
3252
3253 test -n "$cc_type" && enable $cc_type ||
3254 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3255
3256 : ${as_default:=$cc}
3257 : ${objcc_default:=$cc}
3258 : ${dep_cc_default:=$cc}
3259 : ${ld_default:=$cc}
3260 : ${host_ld_default:=$host_cc}
3261 set_default ar as objcc dep_cc ld host_ld
3262
3263 probe_cc as "$as"
3264 asflags_filter=$_flags_filter
3265 add_asflags $_flags $_cflags
3266 set_ccvars AS
3267
3268 probe_cc objcc "$objcc"
3269 objcflags_filter=$_flags_filter
3270 add_objcflags $_flags $_cflags
3271 set_ccvars OBJC
3272
3273 probe_cc ld "$ld"
3274 ldflags_filter=$_flags_filter
3275 add_ldflags $_flags $_ldflags
3276 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3277 LD_O=${_ld_o-$LD_O}
3278 LD_LIB=${_ld_lib-$LD_LIB}
3279 LD_PATH=${_ld_path-$LD_PATH}
3280
3281 probe_cc hostld "$host_ld"
3282 host_ldflags_filter=$_flags_filter
3283 add_host_ldflags $_flags $_ldflags
3284 HOSTLD_O=${_ld_o-$HOSTLD_O}
3285
3286 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3287 probe_cc depcc "$dep_cc"
3288 CCDEP=${_DEPCMD:-$DEPCMD}
3289 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3290 DEPCCFLAGS=$_flags
3291 fi
3292
3293 if $ar 2>&1 | grep -q Microsoft; then
3294 arflags="-nologo"
3295 ar_o='-out:$@'
3296 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3297 arflags="rq"
3298 ar_o='$@'
3299 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3300 arflags='-Xany -r -c'
3301 ar_o='$@'
3302 else
3303 arflags="rc"
3304 ar_o='$@'
3305 fi
3306
3307 add_cflags $extra_cflags
3308 add_objcflags $extra_objcflags
3309 add_asflags $extra_cflags
3310
3311 if test -n "$sysroot"; then
3312 case "$cc_type" in
3313 gcc|llvm_gcc|clang)
3314 add_cppflags --sysroot="$sysroot"
3315 add_ldflags --sysroot="$sysroot"
3316 ;;
3317 tms470)
3318 add_cppflags -I"$sysinclude"
3319 add_ldflags --sysroot="$sysroot"
3320 ;;
3321 esac
3322 fi
3323
3324 if test "$cpu" = host; then
3325 enabled cross_compile &&
3326 die "--cpu=host makes no sense when cross-compiling."
3327
3328 case "$cc_type" in
3329 gcc|llvm_gcc)
3330 check_native(){
3331 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3332 sed -n "/cc1.*$1=/{
3333 s/.*$1=\\([^ ]*\\).*/\\1/
3334 p
3335 q
3336 }" $TMPE
3337 }
3338 cpu=$(check_native -march || check_native -mcpu)
3339 ;;
3340 esac
3341
3342 test "${cpu:-host}" = host &&
3343 die "--cpu=host not supported with compiler $cc"
3344 fi
3345
3346 # Deal with common $arch aliases
3347 case "$arch" in
3348 aarch64|arm64)
3349 arch="aarch64"
3350 ;;
3351 arm*)
3352 arch="arm"
3353 ;;
3354 mips*|IP*)
3355 case "$arch" in
3356 *el)
3357 add_cppflags -EL
3358 add_ldflags -EL
3359 ;;
3360 *eb)
3361 add_cppflags -EB
3362 add_ldflags -EB
3363 ;;
3364 esac
3365 arch="mips"
3366 ;;
3367 parisc*|hppa*)
3368 arch="parisc"
3369 ;;
3370 "Power Macintosh"|ppc*|powerpc*)
3371 arch="ppc"
3372 ;;
3373 s390|s390x)
3374 arch="s390"
3375 ;;
3376 sh4|sh)
3377 arch="sh4"
3378 ;;
3379 sun4u|sparc*)
3380 arch="sparc"
3381 ;;
3382 tilegx|tile-gx)
3383 arch="tilegx"
3384 ;;
3385 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3386 arch="x86"
3387 ;;
3388 esac
3389
3390 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3391 enable $arch
3392
3393 # Add processor-specific flags
3394 if enabled aarch64; then
3395
3396 case $cpu in
3397 armv*)
3398 cpuflags="-march=$cpu"
3399 ;;
3400 *)
3401 cpuflags="-mcpu=$cpu"
3402 ;;
3403 esac
3404
3405 elif enabled alpha; then
3406
3407 cpuflags="-mcpu=$cpu"
3408
3409 elif enabled arm; then
3410
3411 check_arm_arch() {
3412 check_cpp_condition stddef.h \
3413 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3414 $cpuflags
3415 }
3416
3417 probe_arm_arch() {
3418 if check_arm_arch 4; then echo armv4;
3419 elif check_arm_arch 4T; then echo armv4t;
3420 elif check_arm_arch 5; then echo armv5;
3421 elif check_arm_arch 5E; then echo armv5e;
3422 elif check_arm_arch 5T; then echo armv5t;
3423 elif check_arm_arch 5TE; then echo armv5te;
3424 elif check_arm_arch 5TEJ; then echo armv5te;
3425 elif check_arm_arch 6; then echo armv6;
3426 elif check_arm_arch 6J; then echo armv6j;
3427 elif check_arm_arch 6K; then echo armv6k;
3428 elif check_arm_arch 6Z; then echo armv6z;
3429 elif check_arm_arch 6ZK; then echo armv6zk;
3430 elif check_arm_arch 6T2; then echo armv6t2;
3431 elif check_arm_arch 7; then echo armv7;
3432 elif check_arm_arch 7A 7_A; then echo armv7-a;
3433 elif check_arm_arch 7S; then echo armv7-a;
3434 elif check_arm_arch 7R 7_R; then echo armv7-r;
3435 elif check_arm_arch 7M 7_M; then echo armv7-m;
3436 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3437 elif check_arm_arch 8A 8_A; then echo armv8-a;
3438 fi
3439 }
3440
3441 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3442
3443 case $cpu in
3444 armv*)
3445 cpuflags="-march=$cpu"
3446 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3447 ;;
3448 *)
3449 cpuflags="-mcpu=$cpu"
3450 case $cpu in
3451 cortex-a*) subarch=armv7a ;;
3452 cortex-r*) subarch=armv7r ;;
3453 cortex-m*) enable thumb; subarch=armv7m ;;
3454 arm11*) subarch=armv6 ;;
3455 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3456 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3457 *) subarch=$(probe_arm_arch) ;;
3458 esac
3459 ;;
3460 esac
3461
3462 case "$subarch" in
3463 armv5t*) enable fast_clz ;;
3464 armv[6-8]*) enable fast_clz fast_unaligned ;;
3465 esac
3466
3467 elif enabled avr32; then
3468
3469 case $cpu in
3470 ap7[02]0[0-2])
3471 subarch="avr32_ap"
3472 cpuflags="-mpart=$cpu"
3473 ;;
3474 ap)
3475 subarch="avr32_ap"
3476 cpuflags="-march=$cpu"
3477 ;;
3478 uc3[ab]*)
3479 subarch="avr32_uc"
3480 cpuflags="-mcpu=$cpu"
3481 ;;
3482 uc)
3483 subarch="avr32_uc"
3484 cpuflags="-march=$cpu"
3485 ;;
3486 esac
3487
3488 elif enabled bfin; then
3489
3490 cpuflags="-mcpu=$cpu"
3491
3492 elif enabled mips; then
3493
3494 cpuflags="-march=$cpu"
3495
3496 elif enabled ppc; then
3497
3498 disable ldbrx
3499
3500 case $(tolower $cpu) in
3501 601|ppc601|powerpc601)
3502 cpuflags="-mcpu=601"
3503 disable altivec
3504 ;;
3505 603*|ppc603*|powerpc603*)
3506 cpuflags="-mcpu=603"
3507 disable altivec
3508 ;;
3509 604*|ppc604*|powerpc604*)
3510 cpuflags="-mcpu=604"
3511 disable altivec
3512 ;;
3513 g3|75*|ppc75*|powerpc75*)
3514 cpuflags="-mcpu=750"
3515 disable altivec
3516 ;;
3517 g4|745*|ppc745*|powerpc745*)
3518 cpuflags="-mcpu=7450"
3519 disable vsx
3520 ;;
3521 74*|ppc74*|powerpc74*)
3522 cpuflags="-mcpu=7400"
3523 disable vsx
3524 ;;
3525 g5|970|ppc970|powerpc970)
3526 cpuflags="-mcpu=970"
3527 disable vsx
3528 ;;
3529 power[3-6]*)
3530 cpuflags="-mcpu=$cpu"
3531 disable vsx
3532 ;;
3533 power[7-8]*)
3534 cpuflags="-mcpu=$cpu"
3535 enable ldbrx
3536 ;;
3537 cell)
3538 cpuflags="-mcpu=cell"
3539 enable ldbrx
3540 disable vsx
3541 ;;
3542 e500mc)
3543 cpuflags="-mcpu=e500mc"
3544 disable altivec
3545 ;;
3546 e500v2)
3547 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3548 disable altivec
3549 disable dcbzl
3550 ;;
3551 e500)
3552 cpuflags="-mcpu=8540 -mhard-float"
3553 disable altivec
3554 disable dcbzl
3555 ;;
3556 esac
3557
3558 elif enabled sparc; then
3559
3560 case $cpu in
3561 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3562 cpuflags="-mcpu=$cpu"
3563 ;;
3564 ultrasparc*|niagara[234])
3565 cpuflags="-mcpu=$cpu"
3566 ;;
3567 esac
3568
3569 elif enabled x86; then
3570
3571 case $cpu in
3572 i[345]86|pentium)
3573 cpuflags="-march=$cpu"
3574 disable i686
3575 disable mmx
3576 ;;
3577 # targets that do NOT support nopl and conditional mov (cmov)
3578 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3579 cpuflags="-march=$cpu"
3580 disable i686
3581 ;;
3582 # targets that do support nopl and conditional mov (cmov)
3583 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3584 cpuflags="-march=$cpu"
3585 enable i686
3586 enable fast_cmov
3587 ;;
3588 # targets that do support conditional mov but on which it's slow
3589 pentium4|pentium4m|prescott|nocona)
3590 cpuflags="-march=$cpu"
3591 enable i686
3592 disable fast_cmov
3593 ;;
3594 esac
3595
3596 fi
3597
3598 if [ "$cpu" != generic ]; then
3599 add_cflags $cpuflags
3600 add_asflags $cpuflags
3601 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3602 fi
3603
3604 # compiler sanity check
3605 check_exec <<EOF
3606 int main(void){ return 0; }
3607 EOF
3608 if test "$?" != 0; then
3609 echo "$cc is unable to create an executable file."
3610 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3611 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3612 echo "Only do this if you know what cross compiling means."
3613 fi
3614 die "C compiler test failed."
3615 fi
3616
3617 add_cppflags -D_ISOC99_SOURCE
3618 check_cflags -std=c99
3619 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3620 #include <stdlib.h>
3621 EOF
3622 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3623 #include <stdlib.h>
3624 EOF
3625
3626 add_host_cppflags -D_ISOC99_SOURCE
3627 check_host_cflags -std=c99
3628 check_host_cflags -Wall
3629 check_host_cflags -O3
3630
3631 check_64bit(){
3632 arch32=$1
3633 arch64=$2
3634 expr=$3
3635 check_code cc "" "int test[2*($expr) - 1]" &&
3636 subarch=$arch64 || subarch=$arch32
3637 }
3638
3639 case "$arch" in
3640 aarch64|alpha|ia64)
3641 spic=$shared
3642 ;;
3643 mips)
3644 check_64bit mips mips64 '_MIPS_SIM > 1'
3645 spic=$shared
3646 ;;
3647 parisc)
3648 check_64bit parisc parisc64 'sizeof(void *) > 4'
3649 spic=$shared
3650 ;;
3651 ppc)
3652 check_64bit ppc ppc64 'sizeof(void *) > 4'
3653 spic=$shared
3654 ;;
3655 s390)
3656 check_64bit s390 s390x 'sizeof(void *) > 4'
3657 spic=$shared
3658 ;;
3659 sparc)
3660 check_64bit sparc sparc64 'sizeof(void *) > 4'
3661 spic=$shared
3662 ;;
3663 x86)
3664 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3665 if test "$subarch" = "x86_64"; then
3666 spic=$shared
3667 fi
3668 ;;
3669 esac
3670
3671 enable $subarch
3672 enabled spic && enable_weak pic
3673
3674 # OS specific
3675 case $target_os in
3676 aix)
3677 SHFLAGS=-shared
3678 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3679 enabled shared && add_ldflags -Wl,-brtl
3680 ;;
3681 android)
3682 disable symver
3683 enable section_data_rel_ro
3684 SLIB_INSTALL_NAME='$(SLIBNAME)'
3685 SLIB_INSTALL_LINKS=
3686 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3687 ;;
3688 haiku)
3689 prefix_default="/boot/common"
3690 network_extralibs="-lnetwork"
3691 host_libs=
3692 ;;
3693 sunos)
3694 SHFLAGS='-shared -Wl,-h,$$(@F)'
3695 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3696 network_extralibs="-lsocket -lnsl"
3697 # When using suncc to build, the Solaris linker will mark
3698 # an executable with each instruction set encountered by
3699 # the Solaris assembler. As our libraries contain their own
3700 # guards for processor-specific code, instead suppress
3701 # generation of the HWCAPS ELF section on Solaris x86 only.
3702 enabled_all suncc x86 &&
3703 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3704 add_ldflags -Wl,-M,mapfile
3705 nm_default='nm -P -g'
3706 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3707 ;;
3708 netbsd)
3709 disable symver
3710 oss_indev_extralibs="-lossaudio"
3711 oss_outdev_extralibs="-lossaudio"
3712 ;;
3713 openbsd|bitrig)
3714 disable symver
3715 SHFLAGS='-shared'