3229153365b931c1d082bd6f27ea45de5a71d5e0
[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 Individual component options:
136 --disable-everything disable all components listed below
137 --disable-encoder=NAME disable encoder NAME
138 --enable-encoder=NAME enable encoder NAME
139 --disable-encoders disable all encoders
140 --disable-decoder=NAME disable decoder NAME
141 --enable-decoder=NAME enable decoder NAME
142 --disable-decoders disable all decoders
143 --disable-hwaccel=NAME disable hwaccel NAME
144 --enable-hwaccel=NAME enable hwaccel NAME
145 --disable-hwaccels disable all hwaccels
146 --disable-muxer=NAME disable muxer NAME
147 --enable-muxer=NAME enable muxer NAME
148 --disable-muxers disable all muxers
149 --disable-demuxer=NAME disable demuxer NAME
150 --enable-demuxer=NAME enable demuxer NAME
151 --disable-demuxers disable all demuxers
152 --enable-parser=NAME enable parser NAME
153 --disable-parser=NAME disable parser NAME
154 --disable-parsers disable all parsers
155 --enable-bsf=NAME enable bitstream filter NAME
156 --disable-bsf=NAME disable bitstream filter NAME
157 --disable-bsfs disable all bitstream filters
158 --enable-protocol=NAME enable protocol NAME
159 --disable-protocol=NAME disable protocol NAME
160 --disable-protocols disable all protocols
161 --enable-indev=NAME enable input device NAME
162 --disable-indev=NAME disable input device NAME
163 --disable-indevs disable input devices
164 --enable-outdev=NAME enable output device NAME
165 --disable-outdev=NAME disable output device NAME
166 --disable-outdevs disable output devices
167 --disable-devices disable all devices
168 --enable-filter=NAME enable filter NAME
169 --disable-filter=NAME disable filter NAME
170 --disable-filters disable all filters
171
172 External library support:
173
174 Using any of the following switches will allow Libav to link to the
175 corresponding external library. All the components depending on that library
176 will become enabled, if all their other dependencies are met and they are not
177 explicitly disabled. E.g. --enable-libwavpack will enable linking to
178 libwavpack and allow the libwavpack encoder to be built, unless it is
179 specifically disabled with --disable-encoder=libwavpack.
180
181 Note that only the system libraries are auto-detected. All the other external
182 libraries must be explicitly enabled.
183
184 Also note that the following help text describes the purpose of the libraries
185 themselves, not all their features will necessarily be usable by Libav.
186
187 --enable-avisynth video frameserver
188 --enable-bzlib bzip2 compression [autodetect]
189 --enable-frei0r video filtering plugins
190 --enable-gnutls crypto
191 --enable-libbs2b Bauer stereophonic-to-binaural DSP
192 --enable-libcdio audio CD input
193 --enable-libdc1394 IEEE 1394/Firewire camera input
194 --enable-libdcadec DCA audio decoding
195 --enable-libfaac AAC audio encoding
196 --enable-libfdk-aac AAC audio encoding/decoding
197 --enable-libfontconfig font configuration and management
198 --enable-libfreetype font rendering
199 --enable-libgsm GSM audio encoding/decoding
200 --enable-libhdcd HDCD decoding filter
201 --enable-libilbc ILBC audio encoding/decoding
202 --enable-libkvazaar HEVC video encoding
203 --enable-libmp3lame MP3 audio encoding
204 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
205 --enable-libopencore-amrwb AMR-WB audio decoding
206 --enable-libopencv computer vision
207 --enable-libopenh264 H.264 video encoding/decoding
208 --enable-libopenjpeg JPEG 2000 image encoding/decoding
209 --enable-libopus Opus audio encoding/decoding
210 --enable-libpulse Pulseaudio sound server
211 --enable-librtmp RTMP streaming
212 --enable-libschroedinger Dirac video encoding/decoding
213 --enable-libsnappy snappy compression
214 --enable-libspeex Speex audio encoding/decoding
215 --enable-libtheora Theora video encoding/decoding
216 --enable-libtwolame MP2 audio encoding
217 --enable-libvo-aacenc AAC audio encoding
218 --enable-libvo-amrwbenc AMR-WB audio encoding
219 --enable-libvorbis Vorbis audio encoding/decoding
220 --enable-libvpx VP* video encoding/decoding
221 --enable-libwavpack Wavpack audio encoding/decoding
222 --enable-libwebp WebP image encoding/decoding
223 --enable-libx264 H.264 video encoding
224 --enable-libx265 HEVC video encoding
225 --enable-libxavs Chinese AVS video encoding
226 --enable-libxcb X window system protocol communication
227 --enable-libxcb-shm X11 shm communication [auto]
228 --enable-libxcb-xfixes X11 mouse rendering [auto]
229 --enable-libxvid MPEG-4 ASP video encoding
230 --enable-openssl crypto
231 --enable-zlib compression [autodetect]
232
233 The following libraries provide various hardware acceleration features:
234 --enable-cuda Nvidia CUDA (dynamically linked)
235 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
236 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
237 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
238 --enable-libnpp Nvidia CUDA processing
239 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
240 --enable-nvenc Nvidia video encoding
241 --enable-omx OpenMAX IL
242 --enable-omx-rpi OpenMAX IL for Raspberry Pi
243 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
244 --enable-vda Apple Video Decode Acceleration [auto]
245 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
246
247 Toolchain options:
248 --arch=ARCH select architecture [$arch]
249 --cpu=CPU select the minimum required CPU (affects
250 instruction selection, may crash on older CPUs)
251 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
252 --enable-cross-compile assume a cross-compiler is used
253 --sysroot=PATH root of cross-build tree
254 --sysinclude=PATH location of cross-build system headers
255 --target-os=OS compiler targets OS [$target_os]
256 --target-exec=CMD command to run executables on target
257 --target-path=DIR path to view of build directory on target
258 --target-samples=DIR path to samples directory on target
259 --toolchain=NAME set tool defaults according to NAME
260 --nm=NM use nm tool
261 --ar=AR use archive tool AR [$ar_default]
262 --as=AS use assembler AS [$as_default]
263 --cc=CC use C compiler CC [$cc_default]
264 --objcc=OCC use ObjC compiler OCC [$cc_default]
265 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
266 --ld=LD use linker LD
267 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
268 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
269 --host-cc=HOSTCC use host C compiler HOSTCC
270 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
271 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
272 --host-ld=HOSTLD use host linker HOSTLD
273 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
274 --host-libs=HLIBS use libs HLIBS when linking for host
275 --host-os=OS compiler host OS [$target_os]
276 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
277 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
278 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
279 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
280 --extra-libs=ELIBS add ELIBS [$ELIBS]
281 --extra-version=STRING version string suffix []
282 --optflags=OPTFLAGS override optimization-related compiler flags
283 --build-suffix=SUFFIX library name suffix []
284 --enable-pic build position-independent code
285 --enable-thumb compile for Thumb instruction set
286 --enable-lto use link-time optimization
287 --env="ENV=override" override the environment variables
288
289 Advanced options (experts only):
290 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
291 --custom-allocator=NAME use a supported custom allocator
292 --disable-symver disable symbol versioning
293 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
294 --disable-safe-bitstream-reader
295 disable buffer boundary checking in bitreaders
296 (faster, but may crash)
297 --enable-sram allow use of on-chip SRAM
298
299 Optimization options (experts only):
300 --disable-asm disable all assembly optimizations
301 --disable-altivec disable AltiVec optimizations
302 --disable-vsx disable VSX optimizations
303 --disable-power8 disable POWER8 optimizations
304 --disable-amd3dnow disable 3DNow! optimizations
305 --disable-amd3dnowext disable 3DNow! extended optimizations
306 --disable-mmx disable MMX optimizations
307 --disable-mmxext disable MMXEXT optimizations
308 --disable-sse disable SSE optimizations
309 --disable-sse2 disable SSE2 optimizations
310 --disable-sse3 disable SSE3 optimizations
311 --disable-ssse3 disable SSSE3 optimizations
312 --disable-sse4 disable SSE4 optimizations
313 --disable-sse42 disable SSE4.2 optimizations
314 --disable-avx disable AVX optimizations
315 --disable-xop disable XOP optimizations
316 --disable-fma3 disable FMA3 optimizations
317 --disable-fma4 disable FMA4 optimizations
318 --disable-avx2 disable AVX2 optimizations
319 --disable-armv5te disable armv5te optimizations
320 --disable-armv6 disable armv6 optimizations
321 --disable-armv6t2 disable armv6t2 optimizations
322 --disable-vfp disable VFP optimizations
323 --disable-neon disable NEON optimizations
324 --disable-inline-asm disable use of inline assembly
325 --disable-yasm disable use of nasm/yasm assembly
326
327 Developer options (useful when working on Libav itself):
328 --disable-debug disable debugging symbols
329 --enable-debug=LEVEL set the debug level [$debuglevel]
330 --disable-optimizations disable compiler optimizations
331 --enable-extra-warnings enable more compiler warnings
332 --samples=PATH location of test samples for FATE, if not set use
333 \$LIBAV_SAMPLES at make invocation time.
334 --enable-neon-clobber-test check NEON registers for clobbering (should be
335 used only for debugging purposes)
336 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
337 should be used only for debugging purposes)
338 --enable-random randomly enable/disable components
339 --disable-random
340 --enable-random=LIST randomly enable/disable specific components or
341 --disable-random=LIST component groups. LIST is a comma-separated list
342 of NAME[:PROB] entries where NAME is a component
343 (group) and PROB the probability associated with
344 NAME (default 0.5).
345 --random-seed=VALUE seed value for --enable/disable-random
346 --disable-valgrind-backtrace do not print a backtrace under Valgrind
347 (only applies to --disable-optimizations builds)
348
349 NOTE: Object files are built at the place where configure is launched.
350 EOF
351 exit 0
352 }
353
354 quotes='""'
355
356 log(){
357 echo "$@" >> $logfile
358 }
359
360 log_file(){
361 log BEGIN $1
362 i=1
363 while read line; do
364 printf '%5s %s\n' "${i}" "${line}"
365 i=$(($i+1))
366 done < $1 >> $logfile
367 log END $1
368 }
369
370 echolog(){
371 log "$@"
372 echo "$@"
373 }
374
375 warn(){
376 log "WARNING: $*"
377 WARNINGS="${WARNINGS}WARNING: $*\n"
378 }
379
380 die(){
381 echolog "$@"
382 cat <<EOF
383
384 If you think configure made a mistake, make sure you are using the latest
385 version from Git. If the latest version fails, report the problem to the
386 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
387 EOF
388 if disabled logging; then
389 cat <<EOF
390 Rerun configure with logging enabled (do not use --disable-logging), and
391 include the log this produces with your report.
392 EOF
393 else
394 cat <<EOF
395 Include the log file "$logfile" produced by configure as this will help
396 solving the problem.
397 EOF
398 fi
399 exit 1
400 }
401
402 # Avoid locale weirdness, besides we really just want to translate ASCII.
403 toupper(){
404 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
405 }
406
407 tolower(){
408 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
409 }
410
411 c_escape(){
412 echo "$*" | sed 's/["\\]/\\\0/g'
413 }
414
415 sh_quote(){
416 v=$(echo "$1" | sed "s/'/'\\\\''/g")
417 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
418 echo "$v"
419 }
420
421 cleanws(){
422 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
423 }
424
425 filter(){
426 pat=$1
427 shift
428 for v; do
429 eval "case $v in $pat) echo $v ;; esac"
430 done
431 }
432
433 filter_out(){
434 pat=$1
435 shift
436 for v; do
437 eval "case $v in $pat) ;; *) echo $v ;; esac"
438 done
439 }
440
441 map(){
442 m=$1
443 shift
444 for v; do eval $m; done
445 }
446
447 add_suffix(){
448 suffix=$1
449 shift
450 for v; do echo ${v}${suffix}; done
451 }
452
453 set_all(){
454 value=$1
455 shift
456 for var in $*; do
457 eval $var=$value
458 done
459 }
460
461 set_weak(){
462 value=$1
463 shift
464 for var; do
465 eval : \${$var:=$value}
466 done
467 }
468
469 sanitize_var_name(){
470 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
471 }
472
473 set_safe(){
474 var=$1
475 shift
476 eval $(sanitize_var_name "$var")='$*'
477 }
478
479 get_safe(){
480 eval echo \$$(sanitize_var_name "$1")
481 }
482
483 pushvar(){
484 for pvar in $*; do
485 eval level=\${${pvar}_level:=0}
486 eval ${pvar}_${level}="\$$pvar"
487 eval ${pvar}_level=$(($level+1))
488 done
489 }
490
491 popvar(){
492 for pvar in $*; do
493 eval level=\${${pvar}_level:-0}
494 test $level = 0 && continue
495 eval level=$(($level-1))
496 eval $pvar="\${${pvar}_${level}}"
497 eval ${pvar}_level=$level
498 eval unset ${pvar}_${level}
499 done
500 }
501
502 enable(){
503 set_all yes $*
504 }
505
506 disable(){
507 set_all no $*
508 }
509
510 enable_weak(){
511 set_weak yes $*
512 }
513
514 disable_weak(){
515 set_weak no $*
516 }
517
518 enable_safe(){
519 for var; do
520 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
521 done
522 }
523
524 disable_safe(){
525 for var; do
526 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
527 done
528 }
529
530 do_enable_deep(){
531 for var; do
532 enabled $var && continue
533 eval sel="\$${var}_select"
534 eval sgs="\$${var}_suggest"
535 pushvar var sgs
536 enable_deep $sel
537 popvar sgs
538 enable_deep_weak $sgs
539 popvar var
540 done
541 }
542
543 enable_deep(){
544 do_enable_deep $*
545 enable $*
546 }
547
548 enable_deep_weak(){
549 for var; do
550 disabled $var && continue
551 pushvar var
552 do_enable_deep $var
553 popvar var
554 enable_weak $var
555 done
556 }
557
558 enabled(){
559 test "${1#!}" = "$1" && op== || op=!=
560 eval test "x\$${1#!}" $op "xyes"
561 }
562
563 disabled(){
564 test "${1#!}" = "$1" && op== || op=!=
565 eval test "x\$${1#!}" $op "xno"
566 }
567
568 enabled_all(){
569 for opt; do
570 enabled $opt || return 1
571 done
572 }
573
574 disabled_all(){
575 for opt; do
576 disabled $opt || return 1
577 done
578 }
579
580 enabled_any(){
581 for opt; do
582 enabled $opt && return 0
583 done
584 }
585
586 disabled_any(){
587 for opt; do
588 disabled $opt && return 0
589 done
590 return 1
591 }
592
593 set_default(){
594 for opt; do
595 eval : \${$opt:=\$${opt}_default}
596 done
597 }
598
599 is_in(){
600 value=$1
601 shift
602 for var in $*; do
603 [ $var = $value ] && return 0
604 done
605 return 1
606 }
607
608 do_check_deps(){
609 for cfg; do
610 cfg="${cfg#!}"
611 enabled ${cfg}_checking && die "Circular dependency for $cfg."
612 disabled ${cfg}_checking && continue
613 enable ${cfg}_checking
614 append allopts $cfg
615
616 eval dep_all="\$${cfg}_deps"
617 eval dep_any="\$${cfg}_deps_any"
618 eval dep_sel="\$${cfg}_select"
619 eval dep_sgs="\$${cfg}_suggest"
620 eval dep_ifa="\$${cfg}_if"
621 eval dep_ifn="\$${cfg}_if_any"
622
623 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
624 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
625 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
626
627 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
628 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
629 enabled_all $dep_all || disable $cfg
630 enabled_any $dep_any || disable $cfg
631 disabled_any $dep_sel && disable $cfg
632
633 if enabled $cfg; then
634 enable_deep $dep_sel
635 enable_deep_weak $dep_sgs
636 fi
637
638 disable ${cfg}_checking
639 done
640 }
641
642 check_deps(){
643 unset allopts
644
645 do_check_deps "$@"
646
647 for cfg in $allopts; do
648 enabled $cfg || continue
649 eval dep_extralibs="\$${cfg}_extralibs"
650 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
651 done
652 }
653
654 print_config(){
655 pfx=$1
656 files=$2
657 shift 2
658 map 'eval echo "$v \${$v:-no}"' "$@" |
659 awk "BEGIN { split(\"$files\", files) }
660 {
661 c = \"$pfx\" toupper(\$1);
662 v = \$2;
663 sub(/yes/, 1, v);
664 sub(/no/, 0, v);
665 for (f in files) {
666 file = files[f];
667 if (file ~ /\\.h\$/) {
668 printf(\"#define %s %d\\n\", c, v) >>file;
669 } else if (file ~ /\\.asm\$/) {
670 printf(\"%%define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.mak\$/) {
672 n = -v ? \"\" : \"!\";
673 printf(\"%s%s=yes\\n\", n, c) >>file;
674 }
675 }
676 }"
677 }
678
679 print_enabled(){
680 suf=$1
681 shift
682 for v; do
683 enabled $v && printf "%s\n" ${v%$suf}
684 done
685 }
686
687 append(){
688 var=$1
689 shift
690 eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694 var=$1
695 shift
696 eval "$var=\"$* \$$var\""
697 }
698
699 unique(){
700 var=$1
701 uniq_list=""
702 for tok in $(eval echo \$$var); do
703 uniq_list="$(filter_out $tok $uniq_list) $tok"
704 done
705 eval "$var=\"${uniq_list}\""
706 }
707
708 add_cppflags(){
709 append CPPFLAGS "$@"
710 }
711
712 add_cflags(){
713 append CFLAGS $($cflags_filter "$@")
714 }
715
716 add_asflags(){
717 append ASFLAGS $($asflags_filter "$@")
718 }
719
720 add_objcflags(){
721 append OBJCFLAGS $($objcflags_filter "$@")
722 }
723
724 add_ldflags(){
725 append LDFLAGS $($ldflags_filter "$@")
726 }
727
728 add_ldexeflags(){
729 append LDEXEFLAGS $($ldflags_filter "$@")
730 }
731
732 add_stripflags(){
733 append STRIPFLAGS "$@"
734 }
735
736 add_extralibs(){
737 prepend extralibs $($ldflags_filter "$@")
738 }
739
740 add_host_cppflags(){
741 append host_cppflags "$@"
742 }
743
744 add_host_cflags(){
745 append host_cflags $($host_cflags_filter "$@")
746 }
747
748 add_host_ldflags(){
749 append host_ldflags $($host_ldflags_filter "$@")
750 }
751
752 add_compat(){
753 append compat_objs $1
754 shift
755 map 'add_cppflags -D$v' "$@"
756 }
757
758 check_cmd(){
759 log "$@"
760 "$@" >> $logfile 2>&1
761 }
762
763 cc_o(){
764 eval printf '%s\\n' $CC_O
765 }
766
767 cc_e(){
768 eval printf '%s\\n' $CC_E
769 }
770
771 check_cc(){
772 log check_cc "$@"
773 cat > $TMPC
774 log_file $TMPC
775 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
776 }
777
778 check_objcc(){
779 log check_objcc "$@"
780 cat > $TMPC
781 log_file $TMPC
782 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
783 }
784
785 check_cpp(){
786 log check_cpp "$@"
787 cat > $TMPC
788 log_file $TMPC
789 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
790 }
791
792 as_o(){
793 eval printf '%s\\n' $AS_O
794 }
795
796 check_as(){
797 log check_as "$@"
798 cat > $TMPS
799 log_file $TMPS
800 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
801 }
802
803 check_inline_asm(){
804 log check_inline_asm "$@"
805 name="$1"
806 code="$2"
807 shift 2
808 disable $name
809 check_cc "$@" <<EOF && enable $name
810 void foo(void){ __asm__ volatile($code); }
811 EOF
812 }
813
814 check_insn(){
815 log check_insn "$@"
816 check_inline_asm ${1}_inline "\"$2\""
817 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
818 }
819
820 check_yasm(){
821 log check_yasm "$@"
822 echo "$1" > $TMPS
823 log_file $TMPS
824 shift 1
825 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
826 }
827
828 ld_o(){
829 eval printf '%s\\n' $LD_O
830 }
831
832 check_ld(){
833 log check_ld "$@"
834 flags=$(filter_out '-l*' "$@")
835 libs=$(filter '-l*' "$@")
836 check_cc $($cflags_filter $flags) || return
837 flags=$($ldflags_filter $flags)
838 libs=$($ldflags_filter $libs)
839 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
840 }
841
842 print_include(){
843 hdr=$1
844 test "${hdr%.h}" = "${hdr}" &&
845 echo "#include $hdr" ||
846 echo "#include <$hdr>"
847 }
848
849 check_code(){
850 log check_code "$@"
851 check=$1
852 headers=$2
853 code=$3
854 shift 3
855 {
856 for hdr in $headers; do
857 print_include $hdr
858 done
859 echo "int main(void) { $code; return 0; }"
860 } | check_$check "$@"
861 }
862
863 check_cppflags(){
864 log check_cppflags "$@"
865 check_cc "$@" <<EOF && append CPPFLAGS "$@"
866 int x;
867 EOF
868 }
869
870 test_cflags(){
871 log test_cflags "$@"
872 set -- $($cflags_filter "$@")
873 check_cc "$@" <<EOF
874 int x;
875 EOF
876 }
877
878 check_cflags(){
879 log check_cflags "$@"
880 test_cflags "$@" && add_cflags "$@"
881 }
882
883 test_objcflags(){
884 log test_cflags "$@"
885 set -- $($cflags_filter "$@")
886 check_objcc "$@" <<EOF
887 int x;
888 EOF
889 }
890
891 check_objcflags(){
892 log check_cflags "$@"
893 test_objcflags "$@" && add_objcflags "$@"
894 }
895
896 test_ldflags(){
897 log test_ldflags "$@"
898 check_ld "$@" <<EOF
899 int main(void){ return 0; }
900 EOF
901 }
902
903 check_ldflags(){
904 log check_ldflags "$@"
905 test_ldflags "$@" && add_ldflags "$@"
906 }
907
908 test_stripflags(){
909 log test_stripflags "$@"
910 # call check_cc to get a fresh TMPO
911 check_cc <<EOF
912 int main(void) { return 0; }
913 EOF
914 check_cmd $strip $STRIPFLAGS "$@" $TMPO
915 }
916
917 check_stripflags(){
918 log check_stripflags "$@"
919 test_stripflags "$@" && add_stripflags "$@"
920 }
921
922 check_header(){
923 log check_header "$@"
924 header=$1
925 shift
926 disable_safe $header
927 check_cpp "$@" <<EOF && enable_safe $header
928 #include <$header>
929 int x;
930 EOF
931 }
932
933 check_func(){
934 log check_func "$@"
935 func=$1
936 shift
937 disable $func
938 check_ld "$@" <<EOF && enable $func
939 extern int $func();
940 int main(void){ $func(); }
941 EOF
942 }
943
944 check_mathfunc(){
945 log check_mathfunc "$@"
946 func=$1
947 narg=$2
948 shift 2
949 test $narg = 2 && args="f, g" || args="f"
950 disable $func
951 check_ld "$@" <<EOF && enable $func
952 #include <math.h>
953 float foo(float f, float g) { return $func($args); }
954 int main(void){ return 0; }
955 EOF
956 }
957
958 check_func_headers(){
959 log check_func_headers "$@"
960 headers=$1
961 funcs=$2
962 shift 2
963 {
964 for hdr in $headers; do
965 print_include $hdr
966 done
967 for func in $funcs; do
968 echo "long check_$func(void) { return (long) $func; }"
969 done
970 echo "int main(void) { return 0; }"
971 } | check_ld "$@" && enable $funcs && enable_safe $headers
972 }
973
974 check_cpp_condition(){
975 log check_cpp_condition "$@"
976 header=$1
977 condition=$2
978 shift 2
979 check_cpp "$@" <<EOF
980 #include <$header>
981 #if !($condition)
982 #error "unsatisfied condition: $condition"
983 #endif
984 EOF
985 }
986
987 check_lib(){
988 log check_lib "$@"
989 header="$1"
990 func="$2"
991 shift 2
992 check_header $header && check_func $func "$@" && add_extralibs "$@"
993 }
994
995 check_lib2(){
996 log check_lib2 "$@"
997 headers="$1"
998 funcs="$2"
999 shift 2
1000 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1001 }
1002
1003 check_pkg_config(){
1004 log check_pkg_config "$@"
1005 pkg="$1"
1006 headers="$2"
1007 funcs="$3"
1008 shift 3
1009 check_cmd $pkg_config --exists --print-errors $pkg || return
1010 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1011 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1012 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1013 set_safe "${pkg}_cflags" $pkg_cflags &&
1014 set_safe "${pkg}_libs" $pkg_libs
1015 }
1016
1017 check_exec(){
1018 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1019 }
1020
1021 check_exec_crash(){
1022 code=$(cat)
1023
1024 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1025 # are safe but may not be available everywhere. Thus we use
1026 # raise(SIGTERM) instead. The check is run in a subshell so we
1027 # can redirect the "Terminated" message from the shell. SIGBUS
1028 # is not defined by standard C so it is used conditionally.
1029
1030 (check_exec "$@") >> $logfile 2>&1 <<EOF
1031 #include <signal.h>
1032 static void sighandler(int sig){
1033 raise(SIGTERM);
1034 }
1035 int foo(void){
1036 $code
1037 }
1038 int (*func_ptr)(void) = foo;
1039 int main(void){
1040 signal(SIGILL, sighandler);
1041 signal(SIGFPE, sighandler);
1042 signal(SIGSEGV, sighandler);
1043 #ifdef SIGBUS
1044 signal(SIGBUS, sighandler);
1045 #endif
1046 return func_ptr();
1047 }
1048 EOF
1049 }
1050
1051 check_type(){
1052 log check_type "$@"
1053 headers=$1
1054 type=$2
1055 shift 2
1056 disable_safe "$type"
1057 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1058 }
1059
1060 check_struct(){
1061 log check_struct "$@"
1062 headers=$1
1063 struct=$2
1064 member=$3
1065 shift 3
1066 disable_safe "${struct}_${member}"
1067 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1068 enable_safe "${struct}_${member}"
1069 }
1070
1071 check_builtin(){
1072 log check_builtin "$@"
1073 name=$1
1074 headers=$2
1075 builtin=$3
1076 shift 3
1077 disable "$name"
1078 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1079 }
1080
1081 check_compile_assert(){
1082 log check_compile_assert "$@"
1083 name=$1
1084 headers=$2
1085 condition=$3
1086 shift 3
1087 disable "$name"
1088 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1089 }
1090
1091 require(){
1092 name="$1"
1093 header="$2"
1094 func="$3"
1095 shift 3
1096 check_lib $header $func "$@" || die "ERROR: $name not found"
1097 }
1098
1099 require2(){
1100 name="$1"
1101 headers="$2"
1102 func="$3"
1103 shift 3
1104 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1105 }
1106
1107 require_pkg_config(){
1108 pkg="$1"
1109 check_pkg_config "$@" || die "ERROR: $pkg not found"
1110 add_cflags $(get_safe "${pkg}_cflags")
1111 add_extralibs $(get_safe "${pkg}_libs")
1112 }
1113
1114 hostcc_e(){
1115 eval printf '%s\\n' $HOSTCC_E
1116 }
1117
1118 hostcc_o(){
1119 eval printf '%s\\n' $HOSTCC_O
1120 }
1121
1122 check_host_cc(){
1123 log check_host_cc "$@"
1124 cat > $TMPC
1125 log_file $TMPC
1126 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1127 }
1128
1129 check_host_cpp(){
1130 log check_host_cpp "$@"
1131 cat > $TMPC
1132 log_file $TMPC
1133 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1134 }
1135
1136 check_host_cppflags(){
1137 log check_host_cppflags "$@"
1138 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1139 int x;
1140 EOF
1141 }
1142
1143 check_host_cflags(){
1144 log check_host_cflags "$@"
1145 set -- $($host_cflags_filter "$@")
1146 check_host_cc "$@" <<EOF && append host_cflags "$@"
1147 int x;
1148 EOF
1149 }
1150
1151 check_host_cpp_condition(){
1152 log check_host_cpp_condition "$@"
1153 header=$1
1154 condition=$2
1155 shift 2
1156 check_host_cpp "$@" <<EOF
1157 #include <$header>
1158 #if !($condition)
1159 #error "unsatisfied condition: $condition"
1160 #endif
1161 EOF
1162 }
1163
1164 apply(){
1165 file=$1
1166 shift
1167 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1168 }
1169
1170 cp_if_changed(){
1171 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1172 mkdir -p "$(dirname $2)"
1173 $cp_f "$1" "$2"
1174 }
1175
1176 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1177 # system-dependent things.
1178
1179 AVCODEC_COMPONENTS="
1180 bsfs
1181 decoders
1182 encoders
1183 hwaccels
1184 parsers
1185 "
1186
1187 AVDEVICE_COMPONENTS="
1188 indevs
1189 outdevs
1190 "
1191 AVFILTER_COMPONENTS="
1192 filters
1193 "
1194 AVFORMAT_COMPONENTS="
1195 demuxers
1196 muxers
1197 protocols
1198 "
1199
1200 AVRESAMPLE_COMPONENTS=""
1201 AVUTIL_COMPONENTS=""
1202
1203 COMPONENT_LIST="
1204 $AVCODEC_COMPONENTS
1205 $AVDEVICE_COMPONENTS
1206 $AVFILTER_COMPONENTS
1207 $AVFORMAT_COMPONENTS
1208 $AVRESAMPLE_COMPONENTS
1209 $AVUTIL_COMPONENTS
1210 "
1211
1212 EXAMPLE_LIST="
1213 avcodec_example
1214 filter_audio_example
1215 metadata_example
1216 output_example
1217 qsvdec_example
1218 transcode_aac_example
1219 "
1220
1221 HWACCEL_LIBRARY_NONFREE_LIST="
1222 cuda
1223 libnpp
1224 "
1225 HWACCEL_LIBRARY_LIST="
1226 $HWACCEL_LIBRARY_NONFREE_LIST
1227 d3d11va
1228 dxva2
1229 libmfx
1230 mmal
1231 nvenc
1232 omx
1233 vaapi
1234 vda
1235 vdpau
1236 "
1237
1238 EXTERNAL_LIBRARY_GPL_LIST="
1239 libcdio
1240 libx264
1241 libx265
1242 libxavs
1243 libxvid
1244 "
1245
1246 EXTERNAL_LIBRARY_NONFREE_LIST="
1247 libfaac
1248 libfdk_aac
1249 openssl
1250 "
1251
1252 EXTERNAL_LIBRARY_VERSION3_LIST="
1253 libopencore_amrnb
1254 libopencore_amrwb
1255 libvo_aacenc
1256 libvo_amrwbenc
1257 "
1258
1259 EXTERNAL_LIBRARY_LIST="
1260 $EXTERNAL_LIBRARY_GPL_LIST
1261 $EXTERNAL_LIBRARY_NONFREE_LIST
1262 $EXTERNAL_LIBRARY_VERSION3_LIST
1263 avisynth
1264 bzlib
1265 frei0r
1266 gnutls
1267 libbs2b
1268 libdc1394
1269 libdcadec
1270 libfontconfig
1271 libfreetype
1272 libgsm
1273 libhdcd
1274 libilbc
1275 libkvazaar
1276 libmp3lame
1277 libopencv
1278 libopenh264
1279 libopenjpeg
1280 libopus
1281 libpulse
1282 librtmp
1283 libschroedinger
1284 libsnappy
1285 libspeex
1286 libtheora
1287 libtwolame
1288 libvorbis
1289 libvpx
1290 libwavpack
1291 libwebp
1292 libxcb
1293 libxcb_shm
1294 libxcb_xfixes
1295 zlib
1296 "
1297
1298 FEATURE_LIST="
1299 gray
1300 hardcoded_tables
1301 omx_rpi
1302 runtime_cpudetect
1303 safe_bitstream_reader
1304 shared
1305 small
1306 sram
1307 static
1308 swscale_alpha
1309 "
1310
1311 LIBRARY_LIST="
1312 avcodec
1313 avdevice
1314 avfilter
1315 avformat
1316 avresample
1317 avutil
1318 swscale
1319 "
1320
1321 LICENSE_LIST="
1322 gpl
1323 nonfree
1324 version3
1325 "
1326
1327 PROGRAM_LIST="
1328 avconv
1329 avplay
1330 avprobe
1331 "
1332
1333 SUBSYSTEM_LIST="
1334 dct
1335 doc
1336 error_resilience
1337 faan
1338 fft
1339 lsp
1340 lzo
1341 mdct
1342 network
1343 rdft
1344 "
1345
1346 CONFIG_LIST="
1347 $COMPONENT_LIST
1348 $EXAMPLE_LIST
1349 $EXTERNAL_LIBRARY_LIST
1350 $HWACCEL_LIBRARY_LIST
1351 $FEATURE_LIST
1352 $LICENSE_LIST
1353 $LIBRARY_LIST
1354 $PROGRAM_LIST
1355 $SUBSYSTEM_LIST
1356 neon_clobber_test
1357 pic
1358 pod2man
1359 texi2html
1360 thumb
1361 valgrind_backtrace
1362 xmm_clobber_test
1363 "
1364
1365 THREADS_LIST="
1366 pthreads
1367 w32threads
1368 "
1369
1370 ATOMICS_LIST="
1371 atomics_gcc
1372 atomics_suncc
1373 atomics_win32
1374 "
1375
1376 ARCH_LIST="
1377 aarch64
1378 alpha
1379 arm
1380 avr32
1381 avr32_ap
1382 avr32_uc
1383 bfin
1384 ia64
1385 m68k
1386 mips
1387 mips64
1388 parisc
1389 ppc
1390 ppc64
1391 s390
1392 sh4
1393 sparc
1394 sparc64
1395 tilegx
1396 tilepro
1397 tomi
1398 x86
1399 x86_32
1400 x86_64
1401 "
1402
1403 ARCH_EXT_LIST_ARM="
1404 armv5te
1405 armv6
1406 armv6t2
1407 armv8
1408 neon
1409 vfp
1410 vfpv3
1411 "
1412
1413 ARCH_EXT_LIST_X86_SIMD="
1414 amd3dnow
1415 amd3dnowext
1416 avx
1417 avx2
1418 fma3
1419 fma4
1420 mmx
1421 mmxext
1422 sse
1423 sse2
1424 sse3
1425 sse4
1426 sse42
1427 ssse3
1428 xop
1429 "
1430
1431 ARCH_EXT_LIST_PPC="
1432 altivec
1433 dcbzl
1434 ldbrx
1435 power8
1436 ppc4xx
1437 vsx
1438 "
1439
1440 ARCH_EXT_LIST_X86="
1441 $ARCH_EXT_LIST_X86_SIMD
1442 cpunop
1443 i686
1444 "
1445
1446 ARCH_EXT_LIST_MIPS="
1447 loongson
1448 mips32r1
1449 mips64r1
1450 mips32r2
1451 mips64r2
1452 mips32r6
1453 mips64r6
1454 "
1455
1456 ARCH_EXT_LIST="
1457 $ARCH_EXT_LIST_ARM
1458 $ARCH_EXT_LIST_MIPS
1459 $ARCH_EXT_LIST_PPC
1460 $ARCH_EXT_LIST_X86
1461 vis
1462 "
1463
1464 ARCH_FEATURES="
1465 aligned_stack
1466 fast_64bit
1467 fast_clz
1468 fast_cmov
1469 local_aligned_8
1470 local_aligned_16
1471 local_aligned_32
1472 simd_align_16
1473 simd_align_32
1474 "
1475
1476 BUILTIN_LIST="
1477 atomic_cas_ptr
1478 machine_rw_barrier
1479 MemoryBarrier
1480 mm_empty
1481 rdtsc
1482 sem_timedwait
1483 sync_val_compare_and_swap
1484 "
1485 HAVE_LIST_CMDLINE="
1486 inline_asm
1487 symver
1488 yasm
1489 "
1490
1491 HAVE_LIST_PUB="
1492 bigendian
1493 fast_unaligned
1494 "
1495
1496 HEADERS_LIST="
1497 AVFoundation_AVFoundation_h
1498 alsa_asoundlib_h
1499 altivec_h
1500 arpa_inet_h
1501 cdio_paranoia_h
1502 cdio_paranoia_paranoia_h
1503 dispatch_dispatch_h
1504 dev_bktr_ioctl_bt848_h
1505 dev_bktr_ioctl_meteor_h
1506 dev_ic_bt8xx_h
1507 dev_video_bktr_ioctl_bt848_h
1508 dev_video_meteor_ioctl_meteor_h
1509 direct_h
1510 dlfcn_h
1511 d3d11_h
1512 dxva_h
1513 gsm_h
1514 io_h
1515 mach_mach_time_h
1516 machine_ioctl_bt848_h
1517 machine_ioctl_meteor_h
1518 malloc_h
1519 poll_h
1520 sndio_h
1521 soundcard_h
1522 sys_mman_h
1523 sys_param_h
1524 sys_resource_h
1525 sys_select_h
1526 sys_soundcard_h
1527 sys_time_h
1528 sys_un_h
1529 sys_videoio_h
1530 unistd_h
1531 valgrind_valgrind_h
1532 windows_h
1533 winsock2_h
1534 "
1535
1536 INTRINSICS_LIST="
1537 intrinsics_neon
1538 "
1539
1540 MATH_FUNCS="
1541 atanf
1542 atan2f
1543 cbrtf
1544 cosf
1545 exp2
1546 exp2f
1547 expf
1548 isinf
1549 isnan
1550 ldexpf
1551 llrint
1552 llrintf
1553 log2
1554 log2f
1555 log10f
1556 lrint
1557 lrintf
1558 powf
1559 rint
1560 round
1561 roundf
1562 sinf
1563 trunc
1564 truncf
1565 "
1566
1567 SYSTEM_FUNCS="
1568 aligned_malloc
1569 clock_gettime
1570 closesocket
1571 CommandLineToArgvW
1572 CoTaskMemFree
1573 CryptGenRandom
1574 dlopen
1575 fcntl
1576 flt_lim
1577 fork
1578 getaddrinfo
1579 gethrtime
1580 getopt
1581 GetProcessAffinityMask
1582 GetProcessMemoryInfo
1583 GetProcessTimes
1584 getrusage
1585 GetSystemTimeAsFileTime
1586 gettimeofday
1587 gmtime_r
1588 inet_aton
1589 isatty
1590 jack_port_get_latency_range
1591 LoadLibrary
1592 localtime_r
1593 mach_absolute_time
1594 MapViewOfFile
1595 memalign
1596 mkstemp
1597 mmap
1598 mprotect
1599 nanosleep
1600 posix_memalign
1601 sched_getaffinity
1602 SetConsoleTextAttribute
1603 setmode
1604 setrlimit
1605 Sleep
1606 strerror_r
1607 sysconf
1608 sysctl
1609 usleep
1610 VirtualAlloc
1611 "
1612
1613 TOOLCHAIN_FEATURES="
1614 as_dn_directive
1615 as_fpu_directive
1616 as_func
1617 as_object_arch
1618 asm_mod_q
1619 attribute_may_alias
1620 attribute_packed
1621 ebp_available
1622 ebx_available
1623 gnu_as
1624 ibm_asm
1625 inline_asm_labels
1626 pragma_deprecated
1627 symver_asm_label
1628 symver_gnu_asm
1629 vfp_args
1630 xform_asm
1631 xmm_clobbers
1632 "
1633
1634 TYPES_LIST="
1635 CONDITION_VARIABLE_Ptr
1636 socklen_t
1637 struct_addrinfo
1638 struct_group_source_req
1639 struct_ip_mreq_source
1640 struct_ipv6_mreq
1641 struct_pollfd
1642 struct_rusage_ru_maxrss
1643 struct_sockaddr_in6
1644 struct_sockaddr_sa_len
1645 struct_sockaddr_storage
1646 struct_v4l2_frmivalenum_discrete
1647 "
1648
1649 HAVE_LIST="
1650 $ARCH_EXT_LIST
1651 $(add_suffix _external $ARCH_EXT_LIST)
1652 $(add_suffix _inline $ARCH_EXT_LIST)
1653 $ARCH_FEATURES
1654 $ATOMICS_LIST
1655 $BUILTIN_LIST
1656 $HAVE_LIST_CMDLINE
1657 $HAVE_LIST_PUB
1658 $HEADERS_LIST
1659 $INTRINSICS_LIST
1660 $MATH_FUNCS
1661 $SYSTEM_FUNCS
1662 $THREADS_LIST
1663 $TOOLCHAIN_FEATURES
1664 $TYPES_LIST
1665 atomics_native
1666 dos_paths
1667 dxva2_lib
1668 libc_msvcrt
1669 libdc1394_1
1670 libdc1394_2
1671 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1672 sdl
1673 section_data_rel_ro
1674 threads
1675 vaapi_drm
1676 vaapi_x11
1677 vdpau_x11
1678 xlib
1679 "
1680
1681 # options emitted with CONFIG_ prefix but not available on the command line
1682 CONFIG_EXTRA="
1683 aandcttables
1684 ac3dsp
1685 audio_frame_queue
1686 audiodsp
1687 blockdsp
1688 bswapdsp
1689 cabac
1690 dirac_parse
1691 dvprofile
1692 faandct
1693 faanidct
1694 fdctdsp
1695 flacdsp
1696 fmtconvert
1697 g722dsp
1698 gcrypt
1699 gmp
1700 golomb
1701 gplv3
1702 h263dsp
1703 h264chroma
1704 h264dsp
1705 h264parse
1706 h264pred
1707 h264qpel
1708 hpeldsp
1709 huffman
1710 huffyuvdsp
1711 huffyuvencdsp
1712 idctdsp
1713 iirfilter
1714 imdct15
1715 intrax8
1716 iso_media
1717 ividsp
1718 jpegtables
1719 libx262
1720 lgplv3
1721 lpc
1722 lzf
1723 me_cmp
1724 mpeg_er
1725 mpegaudio
1726 mpegaudiodsp
1727 mpegvideo
1728 mpegvideoenc
1729 mss34dsp
1730 pixblockdsp
1731 qpeldsp
1732 qsv
1733 qsvdec
1734 qsvenc
1735 rangecoder
1736 riffdec
1737 riffenc
1738 rtpdec
1739 rtpenc_chain
1740 rv34dsp
1741 sinewin
1742 snappy
1743 srtp
1744 startcode
1745 texturedsp
1746 texturedspenc
1747 tpeldsp
1748 vaapi_encode
1749 vc1dsp
1750 videodsp
1751 vp3dsp
1752 vp56dsp
1753 vp8dsp
1754 wma_freqs
1755 wmv2dsp
1756 "
1757
1758 CMDLINE_SELECT="
1759 $ARCH_EXT_LIST
1760 $CONFIG_LIST
1761 $HAVE_LIST_CMDLINE
1762 $THREADS_LIST
1763 asm
1764 cross_compile
1765 debug
1766 extra_warnings
1767 logging
1768 lto
1769 optimizations
1770 rpath
1771 "
1772
1773 PATHS_LIST="
1774 bindir
1775 datadir
1776 docdir
1777 incdir
1778 libdir
1779 mandir
1780 prefix
1781 shlibdir
1782 "
1783
1784 CMDLINE_SET="
1785 $PATHS_LIST
1786 ar
1787 arch
1788 as
1789 build_suffix
1790 cc
1791 objcc
1792 cpu
1793 cross_prefix
1794 custom_allocator
1795 dep_cc
1796 env
1797 extra_version
1798 host_cc
1799 host_cflags
1800 host_ld
1801 host_ldflags
1802 host_libs
1803 host_os
1804 ld
1805 logfile
1806 malloc_prefix
1807 nm
1808 optflags
1809 pkg_config
1810 pkg_config_flags
1811 random_seed
1812 samples
1813 sysinclude
1814 sysroot
1815 target_exec
1816 target_os
1817 target_path
1818 target_samples
1819 toolchain
1820 "
1821
1822 CMDLINE_APPEND="
1823 extra_cflags
1824 extra_objcflags
1825 host_cppflags
1826 "
1827
1828 # code dependency declarations
1829
1830 # architecture extensions
1831
1832 armv5te_deps="arm"
1833 armv6_deps="arm"
1834 armv6t2_deps="arm"
1835 armv8_deps="aarch64"
1836 neon_deps_any="aarch64 arm"
1837 intrinsics_neon_deps="neon"
1838 vfp_deps_any="aarch64 arm"
1839 vfpv3_deps="vfp"
1840
1841 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1842
1843 altivec_deps="ppc"
1844 ppc4xx_deps="ppc"
1845 vsx_deps="altivec"
1846 power8_deps="vsx"
1847
1848 cpunop_deps="i686"
1849 x86_64_select="i686"
1850 x86_64_suggest="fast_cmov"
1851
1852 amd3dnow_deps="mmx"
1853 amd3dnowext_deps="amd3dnow"
1854 i686_deps="x86"
1855 mmx_deps="x86"
1856 mmxext_deps="mmx"
1857 sse_deps="mmxext"
1858 sse2_deps="sse"
1859 sse3_deps="sse2"
1860 ssse3_deps="sse3"
1861 sse4_deps="ssse3"
1862 sse42_deps="sse4"
1863 avx_deps="sse42"
1864 xop_deps="avx"
1865 fma3_deps="avx"
1866 fma4_deps="avx"
1867 avx2_deps="avx"
1868
1869 mmx_external_deps="yasm"
1870 mmx_inline_deps="inline_asm"
1871 mmx_suggest="mmx_external mmx_inline"
1872
1873 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1874 eval dep=\$${ext}_deps
1875 eval ${ext}_external_deps='"${dep}_external"'
1876 eval ${ext}_inline_deps='"${dep}_inline"'
1877 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1878 done
1879
1880 aligned_stack_if_any="aarch64 ppc x86"
1881 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1882 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1883 fast_unaligned_if_any="aarch64 ppc x86"
1884 simd_align_16_if_any="altivec neon sse"
1885 simd_align_32_if_any="avx"
1886
1887 # system capabilities
1888 symver_if_any="symver_asm_label symver_gnu_asm"
1889 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1890
1891 # threading support
1892 atomics_gcc_if="sync_val_compare_and_swap"
1893 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1894 atomics_win32_if="MemoryBarrier"
1895 atomics_native_if_any="$ATOMICS_LIST"
1896 w32threads_deps="atomics_native"
1897 threads_if_any="$THREADS_LIST"
1898
1899 # subsystems
1900 dct_select="rdft"
1901 dirac_parse_select="golomb"
1902 error_resilience_select="me_cmp"
1903 faandct_deps="faan fdctdsp"
1904 faanidct_deps="faan idctdsp"
1905 h264dsp_select="startcode"
1906 intrax8_select="blockdsp idctdsp"
1907 mdct_select="fft"
1908 rdft_select="fft"
1909 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1910 mpeg_er_select="error_resilience"
1911 mpegaudio_select="mpegaudiodsp"
1912 mpegaudiodsp_select="dct"
1913 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1914 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1915 vc1dsp_select="h264chroma qpeldsp startcode"
1916
1917 # decoders / encoders
1918 aac_decoder_select="imdct15 mdct sinewin"
1919 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1920 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1921 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1922 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1923 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1924 adpcm_g722_decoder_select="g722dsp"
1925 adpcm_g722_encoder_select="g722dsp"
1926 aic_decoder_select="golomb idctdsp"
1927 alac_encoder_select="lpc"
1928 als_decoder_select="bswapdsp"
1929 amrnb_decoder_select="lsp"
1930 amrwb_decoder_select="lsp"
1931 amv_decoder_select="sp5x_decoder"
1932 ape_decoder_select="bswapdsp"
1933 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1934 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1935 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1936 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1937 atrac1_decoder_select="mdct sinewin"
1938 atrac3_decoder_select="mdct"
1939 atrac3p_decoder_select="mdct sinewin"
1940 bink_decoder_select="blockdsp hpeldsp"
1941 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1942 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1943 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1944 cllc_decoder_select="bswapdsp"
1945 comfortnoise_encoder_select="lpc"
1946 cook_decoder_select="audiodsp mdct sinewin"
1947 cscd_decoder_select="lzo"
1948 cscd_decoder_suggest="zlib"
1949 dca_decoder_select="fmtconvert mdct"
1950 dds_decoder_select="texturedsp"
1951 dnxhd_decoder_select="blockdsp idctdsp"
1952 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1953 dvvideo_decoder_select="dvprofile idctdsp"
1954 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1955 dxa_decoder_deps="zlib"
1956 dxv_decoder_select="lzf texturedsp"
1957 eac3_decoder_select="ac3_decoder"
1958 eac3_encoder_select="ac3_encoder"
1959 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1960 eatgq_decoder_select="aandcttables idctdsp"
1961 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1962 exr_decoder_deps="zlib"
1963 ffv1_decoder_select="golomb rangecoder"
1964 ffv1_encoder_select="rangecoder"
1965 ffvhuff_decoder_select="huffyuv_decoder"
1966 ffvhuff_encoder_select="huffyuv_encoder"
1967 fic_decoder_select="golomb"
1968 flac_decoder_select="flacdsp golomb"
1969 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1970 flashsv_decoder_deps="zlib"
1971 flashsv_encoder_deps="zlib"
1972 flashsv2_decoder_deps="zlib"
1973 flv_decoder_select="h263_decoder"
1974 flv_encoder_select="h263_encoder"
1975 fourxm_decoder_select="blockdsp bswapdsp"
1976 fraps_decoder_select="bswapdsp huffman"
1977 g2m_decoder_deps="zlib"
1978 g2m_decoder_select="blockdsp idctdsp jpegtables"
1979 h261_decoder_select="mpeg_er mpegvideo"
1980 h261_encoder_select="aandcttables mpegvideoenc"
1981 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1982 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1983 h263i_decoder_select="h263_decoder"
1984 h263p_encoder_select="h263_encoder"
1985 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1986 h264_decoder_suggest="error_resilience"
1987 hap_decoder_select="snappy texturedsp"
1988 hap_encoder_deps="libsnappy"
1989 hap_encoder_select="texturedspenc"
1990 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1991 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1992 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1993 iac_decoder_select="imc_decoder"
1994 imc_decoder_select="bswapdsp fft mdct sinewin"
1995 indeo3_decoder_select="hpeldsp"
1996 indeo4_decoder_select="ividsp"
1997 indeo5_decoder_select="ividsp"
1998 interplay_video_decoder_select="hpeldsp"
1999 jpegls_decoder_select="golomb mjpeg_decoder"
2000 jpegls_encoder_select="golomb"
2001 jv_decoder_select="blockdsp"
2002 lagarith_decoder_select="huffyuvdsp"
2003 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2004 loco_decoder_select="golomb"
2005 magicyuv_decoder_select="huffyuvdsp"
2006 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2007 metasound_decoder_select="lsp mdct sinewin"
2008 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2009 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2010 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2011 mjpegb_decoder_select="mjpeg_decoder"
2012 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2013 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2014 mlp_decoder_select="mlp_parser"
2015 motionpixels_decoder_select="bswapdsp"
2016 mp1_decoder_select="mpegaudio"
2017 mp1float_decoder_select="mpegaudio"
2018 mp2_decoder_select="mpegaudio"
2019 mp2float_decoder_select="mpegaudio"
2020 mp3_decoder_select="mpegaudio"
2021 mp3adu_decoder_select="mpegaudio"
2022 mp3adufloat_decoder_select="mpegaudio"
2023 mp3float_decoder_select="mpegaudio"
2024 mp3on4_decoder_select="mpegaudio"
2025 mp3on4float_decoder_select="mpegaudio"
2026 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2027 mpc8_decoder_select="mpegaudiodsp"
2028 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2029 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2030 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2031 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2032 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2033 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2034 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2035 mpeg4_encoder_select="h263_encoder"
2036 msa1_decoder_select="mss34dsp"
2037 msmpeg4v1_decoder_select="h263_decoder"
2038 msmpeg4v2_decoder_select="h263_decoder"
2039 msmpeg4v2_encoder_select="h263_encoder"
2040 msmpeg4v3_decoder_select="h263_decoder"
2041 msmpeg4v3_encoder_select="h263_encoder"
2042 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2043 mts2_decoder_select="mss34dsp"
2044 mxpeg_decoder_select="mjpeg_decoder"
2045 nellymoser_decoder_select="mdct sinewin"
2046 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2047 nuv_decoder_select="idctdsp lzo"
2048 on2avc_decoder_select="mdct"
2049 opus_decoder_deps="avresample"
2050 opus_decoder_select="imdct15"
2051 png_decoder_deps="zlib"
2052 png_encoder_deps="zlib"
2053 png_encoder_select="huffyuvencdsp"
2054 prores_decoder_select="idctdsp"
2055 prores_encoder_select="fdctdsp"
2056 qcelp_decoder_select="lsp"
2057 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2058 ra_144_encoder_select="audio_frame_queue lpc"
2059 ralf_decoder_select="golomb"
2060 rscc_decoder_deps="zlib"
2061 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2062 rv10_encoder_select="h263_encoder"
2063 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2064 rv20_encoder_select="h263_encoder"
2065 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2066 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2067 screenpresso_decoder_deps="zlib"
2068 shorten_decoder_select="golomb"
2069 sipr_decoder_select="lsp"
2070 sp5x_decoder_select="mjpeg_decoder"
2071 svq1_decoder_select="hpeldsp"
2072 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2073 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2074 svq3_decoder_suggest="zlib"
2075 tak_decoder_select="audiodsp"
2076 tdsc_decoder_deps="zlib"
2077 tdsc_decoder_select="mjpeg_decoder"
2078 theora_decoder_select="vp3_decoder"
2079 thp_decoder_select="mjpeg_decoder"
2080 tiff_decoder_suggest="zlib"
2081 tiff_encoder_suggest="zlib"
2082 truehd_decoder_select="mlp_decoder"
2083 truemotion2_decoder_select="bswapdsp"
2084 truespeech_decoder_select="bswapdsp"
2085 tscc_decoder_deps="zlib"
2086 txd_decoder_select="texturedsp"
2087 twinvq_decoder_select="mdct lsp sinewin"
2088 utvideo_decoder_select="bswapdsp"
2089 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2090 vble_decoder_select="huffyuvdsp"
2091 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2092 vc1image_decoder_select="vc1_decoder"
2093 vorbis_decoder_select="mdct"
2094 vorbis_encoder_select="mdct"
2095 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2096 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2097 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2098 vp6a_decoder_select="vp6_decoder"
2099 vp6f_decoder_select="vp6_decoder"
2100 vp7_decoder_select="h264pred videodsp vp8dsp"
2101 vp8_decoder_select="h264pred videodsp vp8dsp"
2102 vp9_decoder_select="videodsp"
2103 webp_decoder_select="vp8_decoder"
2104 wmapro_decoder_select="mdct sinewin wma_freqs"
2105 wmav1_decoder_select="mdct sinewin wma_freqs"
2106 wmav1_encoder_select="mdct sinewin wma_freqs"
2107 wmav2_decoder_select="mdct sinewin wma_freqs"
2108 wmav2_encoder_select="mdct sinewin wma_freqs"
2109 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2110 wmv1_decoder_select="h263_decoder"
2111 wmv1_encoder_select="h263_encoder"
2112 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2113 wmv2_encoder_select="h263_encoder wmv2dsp"
2114 wmv3_decoder_select="vc1_decoder"
2115 wmv3image_decoder_select="wmv3_decoder"
2116 zerocodec_decoder_deps="zlib"
2117 zlib_decoder_deps="zlib"
2118 zlib_encoder_deps="zlib"
2119 zmbv_decoder_deps="zlib"
2120 zmbv_encoder_deps="zlib"
2121
2122 # hardware accelerators
2123 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2124 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2125 vaapi_deps="va_va_h"
2126 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2127 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2128 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2129
2130 h263_vaapi_hwaccel_deps="vaapi"
2131 h263_vaapi_hwaccel_select="h263_decoder"
2132 h264_d3d11va_hwaccel_deps="d3d11va"
2133 h264_d3d11va_hwaccel_select="h264_decoder"
2134 h264_dxva2_hwaccel_deps="dxva2"
2135 h264_dxva2_hwaccel_select="h264_decoder"
2136 h264_mmal_decoder_deps="mmal"
2137 h264_mmal_decoder_select="mmal"
2138 h264_mmal_hwaccel_deps="mmal"
2139 h264_omx_encoder_deps="omx"
2140 h264_qsv_hwaccel_deps="libmfx"
2141 h264_vaapi_hwaccel_deps="vaapi"
2142 h264_vaapi_hwaccel_select="h264_decoder"
2143 h264_vda_hwaccel_deps="vda"
2144 h264_vda_hwaccel_select="h264_decoder"
2145 h264_vda_old_hwaccel_deps="vda"
2146 h264_vda_old_hwaccel_select="h264_decoder"
2147 h264_vdpau_hwaccel_deps="vdpau"
2148 h264_vdpau_hwaccel_select="h264_decoder"
2149 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2150 hevc_d3d11va_hwaccel_select="hevc_decoder"
2151 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2152 hevc_dxva2_hwaccel_select="hevc_decoder"
2153 hevc_qsv_hwaccel_deps="libmfx"
2154 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2155 hevc_vdpau_hwaccel_select="hevc_decoder"
2156 mpeg1_vdpau_hwaccel_deps="vdpau"
2157 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2158 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2159 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2160 mpeg2_dxva2_hwaccel_deps="dxva2"
2161 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2162 mpeg2_mmal_decoder_deps="mmal"
2163 mpeg2_mmal_decoder_select="mmal"
2164 mpeg2_mmal_hwaccel_deps="mmal"
2165 mpeg2_qsv_hwaccel_deps="libmfx"
2166 mpeg2_vaapi_hwaccel_deps="vaapi"
2167 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2168 mpeg2_vdpau_hwaccel_deps="vdpau"
2169 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2170 mpeg4_omx_encoder_deps="omx"
2171 mpeg4_vaapi_hwaccel_deps="vaapi"
2172 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2173 mpeg4_vdpau_hwaccel_deps="vdpau"
2174 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2175 vc1_d3d11va_hwaccel_deps="d3d11va"
2176 vc1_d3d11va_hwaccel_select="vc1_decoder"
2177 vc1_dxva2_hwaccel_deps="dxva2"
2178 vc1_dxva2_hwaccel_select="vc1_decoder"
2179 vc1_mmal_decoder_deps="mmal"
2180 vc1_mmal_decoder_select="mmal"
2181 vc1_mmal_hwaccel_deps="mmal"
2182 vc1_vaapi_hwaccel_deps="vaapi"
2183 vc1_vaapi_hwaccel_select="vc1_decoder"
2184 vc1_vdpau_hwaccel_deps="vdpau"
2185 vc1_vdpau_hwaccel_select="vc1_decoder"
2186 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2187 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2188 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2189 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2190
2191 # hardware-accelerated codecs
2192 nvenc_deps_any="dlopen LoadLibrary"
2193 nvenc_extralibs='$ldl'
2194 omx_deps="dlopen pthreads"
2195 omx_extralibs='$ldl'
2196 qsvdec_select="qsv"
2197 qsvenc_select="qsv"
2198 vaapi_encode_deps="vaapi"
2199
2200 hwupload_cuda_filter_deps="cuda"
2201 scale_npp_filter_deps="cuda libnpp"
2202
2203 h264_nvenc_encoder_deps="nvenc"
2204 h264_qsv_decoder_deps="libmfx"
2205 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2206 h264_qsv_encoder_deps="libmfx"
2207 h264_qsv_encoder_select="qsvenc"
2208 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2209 h264_vaapi_encoder_select="vaapi_encode golomb"
2210
2211 hevc_nvenc_encoder_deps="nvenc"
2212 hevc_qsv_decoder_deps="libmfx"
2213 hevc_qsv_encoder_deps="libmfx"
2214 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2215 hevc_qsv_encoder_select="qsvenc"
2216 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2217 hevc_vaapi_encoder_select="vaapi_encode golomb"
2218 mpeg2_qsv_decoder_deps="libmfx"
2219 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2220 mpeg2_qsv_encoder_deps="libmfx"
2221 mpeg2_qsv_encoder_select="qsvenc"
2222
2223 nvenc_h264_encoder_deps="nvenc"
2224 nvenc_hevc_encoder_deps="nvenc"
2225
2226 # parsers
2227 h264_parser_select="golomb h264dsp h264parse"
2228 hevc_parser_select="golomb"
2229 mpegvideo_parser_select="mpegvideo"
2230 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2231 vc1_parser_select="vc1dsp"
2232
2233 # bitstream_filters
2234 mjpeg2jpeg_bsf_select="jpegtables"
2235
2236 # external libraries
2237 libdcadec_decoder_deps="libdcadec"
2238 libfaac_encoder_deps="libfaac"
2239 libfaac_encoder_select="audio_frame_queue"
2240 libfdk_aac_decoder_deps="libfdk_aac"
2241 libfdk_aac_encoder_deps="libfdk_aac"
2242 libfdk_aac_encoder_select="audio_frame_queue"
2243 libgsm_decoder_deps="libgsm"
2244 libgsm_encoder_deps="libgsm"
2245 libgsm_ms_decoder_deps="libgsm"
2246 libgsm_ms_encoder_deps="libgsm"
2247 libilbc_decoder_deps="libilbc"
2248 libilbc_encoder_deps="libilbc"
2249 libkvazaar_encoder_deps="libkvazaar"
2250 libmp3lame_encoder_deps="libmp3lame"
2251 libmp3lame_encoder_select="audio_frame_queue"
2252 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2253 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2254 libopencore_amrnb_encoder_select="audio_frame_queue"
2255 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2256 libopenh264_decoder_deps="libopenh264"
2257 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2258 libopenh264_encoder_deps="libopenh264"
2259 libopenjpeg_decoder_deps="libopenjpeg"
2260 libopenjpeg_encoder_deps="libopenjpeg"
2261 libopus_decoder_deps="libopus"
2262 libopus_encoder_deps="libopus"
2263 libopus_encoder_select="audio_frame_queue"
2264 libschroedinger_decoder_deps="libschroedinger"
2265 libschroedinger_encoder_deps="libschroedinger"
2266 libspeex_decoder_deps="libspeex"
2267 libspeex_encoder_deps="libspeex"
2268 libspeex_encoder_select="audio_frame_queue"
2269 libtheora_encoder_deps="libtheora"
2270 libtwolame_encoder_deps="libtwolame"
2271 libvo_aacenc_encoder_deps="libvo_aacenc"
2272 libvo_aacenc_encoder_select="audio_frame_queue"
2273 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2274 libvorbis_encoder_deps="libvorbis"
2275 libvorbis_encoder_select="audio_frame_queue"
2276 libvpx_vp8_decoder_deps="libvpx"
2277 libvpx_vp8_encoder_deps="libvpx"
2278 libvpx_vp9_decoder_deps="libvpx"
2279 libvpx_vp9_encoder_deps="libvpx"
2280 libwavpack_encoder_deps="libwavpack"
2281 libwebp_encoder_deps="libwebp"
2282 libx262_encoder_deps="libx262"
2283 libx264_encoder_deps="libx264"
2284 libx265_encoder_deps="libx265"
2285 libxavs_encoder_deps="libxavs"
2286 libxvid_encoder_deps="libxvid"
2287
2288 # demuxers / muxers
2289 ac3_demuxer_select="ac3_parser"
2290 asf_demuxer_select="riffdec"
2291 asf_muxer_select="riffenc"
2292 asf_stream_muxer_select="asf_muxer"
2293 avi_demuxer_select="iso_media riffdec"
2294 avi_muxer_select="riffenc"
2295 avisynth_demuxer_deps="avisynth"
2296 avisynth_demuxer_select="riffdec"
2297 caf_demuxer_select="iso_media riffdec"
2298 dash_muxer_select="mp4_muxer"
2299 dirac_demuxer_select="dirac_parser"
2300 dv_demuxer_select="dvprofile"
2301 dv_muxer_select="dvprofile"
2302 dxa_demuxer_select="riffdec"
2303 eac3_demuxer_select="ac3_parser"
2304 f4v_muxer_select="mov_muxer"
2305 flac_demuxer_select="flac_parser"
2306 hds_muxer_select="flv_muxer"
2307 hls_muxer_select="mpegts_muxer"
2308 ipod_muxer_select="mov_muxer"
2309 ismv_muxer_select="mov_muxer"
2310 matroska_audio_muxer_select="matroska_muxer"
2311 matroska_demuxer_select="iso_media riffdec"
2312 matroska_demuxer_suggest="bzlib lzo zlib"
2313 matroska_muxer_select="iso_media riffenc"
2314 mmf_muxer_select="riffenc"
2315 mov_demuxer_select="iso_media riffdec"
2316 mov_demuxer_suggest="zlib"
2317 mov_muxer_select="iso_media riffenc rtpenc_chain"
2318 mp3_demuxer_select="mpegaudio_parser"
2319 mp4_muxer_select="mov_muxer"
2320 mpegts_demuxer_select="iso_media"
2321 mpegts_muxer_select="adts_muxer latm_muxer"
2322 mpegtsraw_demuxer_select="mpegts_demuxer"
2323 mxf_d10_muxer_select="mxf_muxer"
2324 nut_muxer_select="riffenc"
2325 nuv_demuxer_select="riffdec"
2326 oga_muxer_select="ogg_muxer"
2327 ogg_demuxer_select="dirac_parse"
2328 opus_muxer_select="ogg_muxer"
2329 psp_muxer_select="mov_muxer"
2330 rtp_demuxer_select="sdp_demuxer"
2331 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2332 rtsp_demuxer_select="http_protocol rtpdec"
2333 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2334 sap_demuxer_select="sdp_demuxer"
2335 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2336 sdp_demuxer_select="rtpdec"
2337 smoothstreaming_muxer_select="ismv_muxer"
2338 spdif_muxer_select="aac_parser"
2339 spx_muxer_select="ogg_muxer"
2340 swf_demuxer_suggest="zlib"
2341 tak_demuxer_select="tak_parser"
2342 tg2_muxer_select="mov_muxer"
2343 tgp_muxer_select="mov_muxer"
2344 w64_demuxer_select="wav_demuxer"
2345 wav_demuxer_select="riffdec"
2346 wav_muxer_select="riffenc"
2347 webm_muxer_select="iso_media riffenc"
2348 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2349 wtv_demuxer_select="mpegts_demuxer riffdec"
2350 xmv_demuxer_select="riffdec"
2351 xwma_demuxer_select="riffdec"
2352
2353 # indevs / outdevs
2354 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2355 alsa_outdev_deps="alsa_asoundlib_h"
2356 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2357 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2358 dv1394_indev_deps="dv1394"
2359 dv1394_indev_select="dv_demuxer"
2360 fbdev_indev_deps="linux_fb_h"
2361 jack_indev_deps="jack_jack_h"
2362 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2363 libcdio_indev_deps="libcdio"
2364 libdc1394_indev_deps="libdc1394"
2365 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2366 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2367 pulse_indev_deps="libpulse"
2368 sndio_indev_deps="sndio_h"
2369 sndio_outdev_deps="sndio_h"
2370 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2371 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2372 vfwcap_indev_extralibs="-lavicap32"
2373 xcbgrab_indev_deps="libxcb"
2374
2375 # protocols
2376 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2377 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2378 ffrtmpcrypt_protocol_select="tcp_protocol"
2379 ffrtmphttp_protocol_deps="!librtmp_protocol"
2380 ffrtmphttp_protocol_select="http_protocol"
2381 gopher_protocol_select="network"
2382 http_protocol_select="tcp_protocol"
2383 httpproxy_protocol_select="tcp_protocol"
2384 https_protocol_select="tls_protocol"
2385 icecast_protocol_select="http_protocol"
2386 librtmp_protocol_deps="librtmp"
2387 librtmpe_protocol_deps="librtmp"
2388 librtmps_protocol_deps="librtmp"
2389 librtmpt_protocol_deps="librtmp"
2390 librtmpte_protocol_deps="librtmp"
2391 mmsh_protocol_select="http_protocol"
2392 mmst_protocol_select="network"
2393 rtmp_protocol_deps="!librtmp_protocol"
2394 rtmp_protocol_select="tcp_protocol"
2395 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2396 rtmps_protocol_deps="!librtmp_protocol"
2397 rtmps_protocol_select="tls_protocol"
2398 rtmpt_protocol_select="ffrtmphttp_protocol"
2399 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2400 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2401 rtp_protocol_select="udp_protocol"
2402 sctp_protocol_deps="struct_sctp_event_subscribe"
2403 sctp_protocol_select="network"
2404 srtp_protocol_select="rtp_protocol srtp"
2405 tcp_protocol_select="network"
2406 tls_gnutls_protocol_deps="gnutls"
2407 tls_gnutls_protocol_select="tcp_protocol"
2408 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2409 tls_openssl_protocol_select="tcp_protocol"
2410 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2411 udp_protocol_select="network"
2412 unix_protocol_deps="sys_un_h"
2413 unix_protocol_select="network"
2414
2415 # filters
2416 blackframe_filter_deps="gpl"
2417 boxblur_filter_deps="gpl"
2418 bs2b_filter_deps="libbs2b"
2419 cropdetect_filter_deps="gpl"
2420 deinterlace_qsv_filter_deps="libmfx"
2421 delogo_filter_deps="gpl"
2422 drawtext_filter_deps="libfreetype"
2423 frei0r_filter_deps="frei0r dlopen"
2424 frei0r_filter_extralibs='$ldl'
2425 frei0r_src_filter_deps="frei0r dlopen"
2426 frei0r_src_filter_extralibs='$ldl'
2427 hdcd_filter_deps="libhdcd"
2428 hqdn3d_filter_deps="gpl"
2429 interlace_filter_deps="gpl"
2430 ocv_filter_deps="libopencv"
2431 resample_filter_deps="avresample"
2432 scale_filter_deps="swscale"
2433 scale_qsv_filter_deps="libmfx"
2434 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2435
2436 # examples
2437 avcodec_example_deps="avcodec avutil"
2438 filter_audio_example_deps="avfilter avutil"
2439 metadata_example_deps="avformat avutil"
2440 output_example_deps="avcodec avformat avutil swscale"
2441 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2442 transcode_aac_example_deps="avcodec avformat avresample"
2443
2444 # libraries, in linking order
2445 avcodec_deps="avutil"
2446 avdevice_deps="avformat avcodec avutil"
2447 avfilter_deps="avutil"
2448 avformat_deps="avcodec avutil"
2449 avresample_deps="avutil"
2450 swscale_deps="avutil"
2451
2452 # programs
2453 avconv_deps="avcodec avfilter avformat avresample swscale"
2454 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2455 fps_filter null_filter resample_filter scale_filter
2456 trim_filter"
2457 avplay_deps="avcodec avfilter avformat avresample sdl"
2458 avplay_libs='$sdl_libs'
2459 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2460 avprobe_deps="avcodec avformat"
2461
2462 # documentation
2463 pod2man_deps="doc"
2464 texi2html_deps="doc"
2465
2466 # default parameters
2467
2468 logfile="config.log"
2469
2470 # installation paths
2471 prefix_default="/usr/local"
2472 bindir_default='${prefix}/bin'
2473 datadir_default='${prefix}/share/avconv'
2474 docdir_default='${prefix}/share/doc/libav'
2475 incdir_default='${prefix}/include'
2476 libdir_default='${prefix}/lib'
2477 mandir_default='${prefix}/share/man'
2478 shlibdir_default="$libdir_default"
2479
2480 # toolchain
2481 ar_default="ar"
2482 cc_default="gcc"
2483 host_cc_default="gcc"
2484 cp_f="cp -f"
2485 ln_s="ln -s -f"
2486 nm_default="nm -g"
2487 objformat="elf"
2488 pkg_config_default=pkg-config
2489 ranlib="ranlib"
2490 strip="strip"
2491 version_script='--version-script'
2492 yasmexe="yasm"
2493
2494 # machine
2495 arch_default=$(uname -m)
2496 cpu="generic"
2497 intrinsics="none"
2498
2499 # OS
2500 target_os_default=$(tolower $(uname -s))
2501 host_os=$target_os_default
2502
2503 # configurable options
2504 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2505
2506 enable asm
2507 enable debug
2508 enable doc
2509 enable faan faandct faanidct
2510 enable optimizations
2511 enable safe_bitstream_reader
2512 enable static
2513 enable swscale_alpha
2514 enable valgrind_backtrace
2515
2516 # By default, enable only those hwaccels that have no external dependencies.
2517 enable d3d11va dxva2 vda vdpau
2518
2519 # build settings
2520 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2521 LIBPREF="lib"
2522 LIBSUF=".a"
2523 FULLNAME='$(NAME)$(BUILDSUF)'
2524 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2525 SLIBPREF="lib"
2526 SLIBSUF=".so"
2527 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2528 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2529 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2530 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2531 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2532 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2533 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2534
2535 asflags_filter=echo
2536 cflags_filter=echo
2537 ldflags_filter=echo
2538
2539 AS_C='-c'
2540 AS_O='-o $@'
2541 CC_C='-c'
2542 CC_E='-E -o $@'
2543 CC_O='-o $@'
2544 OBJCC_C='-c'
2545 OBJCC_E='-E -o $@'
2546 OBJCC_O='-o $@'
2547 LD_O='-o $@'
2548 LD_LIB='-l%'
2549 LD_PATH='-L'
2550 HOSTCC_C='-c'
2551 HOSTCC_E='-E -o $@'
2552 HOSTCC_O='-o $@'
2553 HOSTLD_O='-o $@'
2554
2555 host_libs='-lm'
2556 host_cflags_filter=echo
2557 host_ldflags_filter=echo
2558
2559 target_path='$(CURDIR)'
2560
2561 # since the object filename is not given with the -MM flag, the compiler
2562 # is only able to print the basename, and we must add the path ourselves
2563 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2564 DEPFLAGS='-MM'
2565
2566 # find source path
2567 if test -f configure; then
2568 source_path=.
2569 else
2570 source_path=$(cd $(dirname "$0"); pwd)
2571 echo "$source_path" | grep -q '[[:blank:]]' &&
2572 die "Out of tree builds are impossible with whitespace in source path."
2573 test -e "$source_path/config.h" &&
2574 die "Out of tree builds are impossible with config.h in source dir."
2575 fi
2576
2577 for v in "$@"; do
2578 r=${v#*=}
2579 l=${v%"$r"}
2580 r=$(sh_quote "$r")
2581 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2582 done
2583
2584 find_things(){
2585 thing=$1
2586 pattern=$2
2587 file=$source_path/$3
2588 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2589 }
2590
2591 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2592 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2593 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2594 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2595 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2596 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2597 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2598 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2599 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2600
2601 find_things_extern(){
2602 thing=$1
2603 pattern=$2
2604 file=$source_path/$3
2605 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2606 }
2607
2608 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2609 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2610
2611 ALL_COMPONENTS="
2612 $BSF_LIST
2613 $DECODER_LIST
2614 $DEMUXER_LIST
2615 $ENCODER_LIST
2616 $FILTER_LIST
2617 $HWACCEL_LIST
2618 $INDEV_LIST
2619 $MUXER_LIST
2620 $OUTDEV_LIST
2621 $PARSER_LIST
2622 $PROTOCOL_LIST
2623 "
2624
2625 for n in $COMPONENT_LIST; do
2626 v=$(toupper ${n%s})_LIST
2627 eval enable \$$v
2628 eval ${n}_if_any="\$$v"
2629 done
2630
2631 enable $ARCH_EXT_LIST
2632
2633 die_unknown(){
2634 echo "Unknown option \"$1\"."
2635 echo "See $0 --help for available options."
2636 exit 1
2637 }
2638
2639 print_3_columns() {
2640 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2641 }
2642
2643 show_list() {
2644 suffix=_$1
2645 shift
2646 echo $* | sed s/$suffix//g | print_3_columns
2647 exit 0
2648 }
2649
2650 rand_list(){
2651 IFS=', '
2652 set -- $*
2653 unset IFS
2654 for thing; do
2655 comp=${thing%:*}
2656 prob=${thing#$comp}
2657 prob=${prob#:}
2658 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2659 echo "prob ${prob:-0.5}"
2660 printf '%s\n' $comp
2661 done
2662 }
2663
2664 do_random(){
2665 action=$1
2666 shift
2667 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2668 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2669 }
2670
2671 for opt do
2672 optval="${opt#*=}"
2673 case "$opt" in
2674 --extra-ldflags=*)
2675 add_ldflags $optval
2676 ;;
2677 --extra-ldexeflags=*)
2678 add_ldexeflags $optval
2679 ;;
2680 --extra-libs=*)
2681 add_extralibs $optval
2682 ;;
2683 --disable-devices)
2684 disable $INDEV_LIST $OUTDEV_LIST
2685 ;;
2686 --enable-debug=*)
2687 debuglevel="$optval"
2688 ;;
2689 --disable-programs)
2690 disable $PROGRAM_LIST
2691 ;;
2692 --disable-everything)
2693 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2694 ;;
2695 --disable-all)
2696 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2697 disable $LIBRARY_LIST $PROGRAM_LIST doc
2698 ;;
2699 --enable-random|--disable-random)
2700 action=${opt%%-random}
2701 do_random ${action#--} $COMPONENT_LIST
2702 ;;
2703 --enable-random=*|--disable-random=*)
2704 action=${opt%%-random=*}
2705 do_random ${action#--} $optval
2706 ;;
2707 --enable-*=*|--disable-*=*)
2708 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2709 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2710 eval list=\$$(toupper $thing)_LIST
2711 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2712 $action $(filter "$name" $list)
2713 ;;
2714 --enable-avserver|--disable-avserver*)
2715 warn "avserver has been removed, the ${opt} option is only"\
2716 "provided for compatibility and will be removed in the future"
2717 ;;
2718 --enable-?*|--disable-?*)
2719 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2720 if is_in $option $COMPONENT_LIST; then
2721 test $action = disable && action=unset
2722 eval $action \$$(toupper ${option%s})_LIST
2723 elif is_in $option $CMDLINE_SELECT; then
2724 $action $option
2725 else
2726 die_unknown $opt
2727 fi
2728 ;;
2729 --list-*)
2730 NAME="${opt#--list-}"
2731 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2732 NAME=${NAME%s}
2733 eval show_list $NAME \$$(toupper $NAME)_LIST
2734 ;;
2735 --help|-h) show_help
2736 ;;
2737 *)
2738 optname="${opt%%=*}"
2739 optname="${optname#--}"
2740 optname=$(echo "$optname" | sed 's/-/_/g')
2741 if is_in $optname $CMDLINE_SET; then
2742 eval $optname='$optval'
2743 elif is_in $optname $CMDLINE_APPEND; then
2744 append $optname "$optval"
2745 else
2746 die_unknown $opt
2747 fi
2748 ;;
2749 esac
2750 done
2751
2752 for e in $env; do
2753 eval "export $e"
2754 done
2755
2756 disabled logging && logfile=/dev/null
2757
2758 # Disable all the library-specific components if the library itself
2759 # is disabled, see AVCODEC_LIST and following _LIST variables.
2760
2761 disable_components(){
2762 disabled ${1} && disable $(
2763 eval components="\$$(toupper ${1})_COMPONENTS"
2764 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2765 )
2766 }
2767
2768 map 'disable_components $v' $LIBRARY_LIST
2769
2770 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2771 set >> $logfile
2772
2773 case "$toolchain" in
2774 *-asan)
2775 cc_default="${toolchain%-asan}"
2776 add_cflags -fsanitize=address
2777 add_ldflags -fsanitize=address
2778 ;;
2779 *-msan)
2780 cc_default="${toolchain%-msan}"
2781 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2782 add_ldflags -fsanitize=memory
2783 ;;
2784 *-tsan)
2785 cc_default="${toolchain%-tsan}"
2786 add_cflags -fsanitize=thread -pie
2787 add_ldflags -fsanitize=thread -pie
2788 case "$toolchain" in
2789 gcc-tsan)
2790 add_cflags -fPIC
2791 add_ldflags -fPIC
2792 ;;
2793 esac
2794 ;;
2795 *-usan)
2796 cc_default="${toolchain%-usan}"
2797 add_cflags -fsanitize=undefined
2798 add_ldflags -fsanitize=undefined
2799 case "$toolchain" in
2800 clang-usan)
2801 add_cflags -O1
2802 ;;
2803 esac
2804 ;;
2805 valgrind-*)
2806 target_exec_default="valgrind"
2807 case "$toolchain" in
2808 valgrind-massif)
2809 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2810 ;;
2811 valgrind-memcheck)
2812 target_exec_args="--track-origins=yes --leak-check=full"
2813 ;;
2814 esac
2815 ;;
2816 msvc)
2817 # Check whether the current MSVC version needs the C99 converter.
2818 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2819 # support enough of C99 to build libav. Default to the new
2820 # behaviour if the regexp was unable to match anything, since this
2821 # successfully parses the version number of existing supported
2822 # versions that require the converter (MSVC 2010 and 2012).
2823 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2824 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2825 cc_default="cl"
2826 else
2827 cc_default="c99wrap cl"
2828 fi
2829 ld_default="$source_path/compat/windows/mslink"
2830 nm_default="dumpbin -symbols"
2831 ar_default="lib"
2832 case "$arch" in
2833 arm*)
2834 as_default="armasm"
2835 ;;
2836 esac
2837 target_os_default="win32"
2838 # Use a relative path for TMPDIR. This makes sure all the
2839 # ffconf temp files are written with a relative path, avoiding
2840 # issues with msys/win32 path conversion for MSVC parameters
2841 # such as -Fo<file> or -out:<file>.
2842 TMPDIR=.
2843 ;;
2844 icl)
2845 cc_default="icl"
2846 ld_default="xilink"
2847 nm_default="dumpbin -symbols"
2848 ar_default="xilib"
2849 target_os_default="win32"
2850 TMPDIR=.
2851 ;;
2852 gcov)
2853 add_cflags -fprofile-arcs -ftest-coverage
2854 add_ldflags -fprofile-arcs -ftest-coverage
2855 ;;
2856 llvm-cov)
2857 add_cflags -fprofile-arcs -ftest-coverage
2858 add_ldflags --coverage
2859 ;;
2860 hardened)
2861 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2862 add_cflags -fno-strict-overflow -fstack-protector-all
2863 add_ldflags -Wl,-z,relro -Wl,-z,now
2864 ;;
2865 ?*)
2866 die "Unknown toolchain $toolchain"
2867 ;;
2868 esac
2869
2870 test -n "$cross_prefix" && enable cross_compile
2871
2872 if enabled cross_compile; then
2873 test -n "$arch" && test -n "$target_os" ||
2874 die "Must specify target arch and OS when cross-compiling"
2875 fi
2876
2877 ar_default="${cross_prefix}${ar_default}"
2878 cc_default="${cross_prefix}${cc_default}"
2879 occ_default="${cross_prefix}${occ_default}"
2880 nm_default="${cross_prefix}${nm_default}"
2881 pkg_config_default="${cross_prefix}${pkg_config_default}"
2882 ranlib="${cross_prefix}${ranlib}"
2883 strip="${cross_prefix}${strip}"
2884
2885 sysinclude_default="${sysroot}/usr/include"
2886
2887 set_default arch cc pkg_config sysinclude target_exec target_os
2888 enabled cross_compile || host_cc_default=$cc
2889 set_default host_cc
2890
2891 if ! $pkg_config --version >/dev/null 2>&1; then
2892 warn "$pkg_config not found, library detection may fail."
2893 pkg_config=false
2894 fi
2895
2896 exesuf() {
2897 case $1 in
2898 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2899 esac
2900 }
2901
2902 EXESUF=$(exesuf $target_os)
2903 HOSTEXESUF=$(exesuf $host_os)
2904
2905 # set temporary file name
2906 : ${TMPDIR:=$TEMPDIR}
2907 : ${TMPDIR:=$TMP}
2908 : ${TMPDIR:=/tmp}
2909
2910 if ! check_cmd mktemp -u XXXXXX; then
2911 # simple replacement for missing mktemp
2912 # NOT SAFE FOR GENERAL USE
2913 mktemp(){
2914 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2915 }
2916 fi
2917
2918 tmpfile(){
2919 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2920 (set -C; exec > $tmp) 2>/dev/null ||
2921 die "Unable to create temporary file in $TMPDIR."
2922 append TMPFILES $tmp
2923 eval $1=$tmp
2924 }
2925
2926 trap 'rm -f -- $TMPFILES' EXIT
2927
2928 tmpfile TMPASM .asm
2929 tmpfile TMPC .c
2930 tmpfile TMPE $EXESUF
2931 tmpfile TMPH .h
2932 tmpfile TMPO .o
2933 tmpfile TMPS .S
2934 tmpfile TMPSH .sh
2935 tmpfile TMPV .ver
2936
2937 unset -f mktemp
2938
2939 chmod +x $TMPE
2940
2941 # make sure we can execute files in $TMPDIR
2942 cat > $TMPSH 2>> $logfile <<EOF
2943 #! /bin/sh
2944 EOF
2945 chmod +x $TMPSH >> $logfile 2>&1
2946 if ! $TMPSH >> $logfile 2>&1; then
2947 cat <<EOF
2948 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2949 variable to another directory and make sure that it is not mounted noexec.
2950 EOF
2951 die "Sanity test failed."
2952 fi
2953
2954 armasm_flags(){
2955 for flag; do
2956 case $flag in
2957 # Filter out MSVC cl.exe options from cflags that shouldn't
2958 # be passed to gas-preprocessor
2959 -M[TD]*) ;;
2960 *) echo $flag ;;
2961 esac
2962 done
2963 }
2964
2965 ccc_flags(){
2966 for flag; do
2967 case $flag in
2968 -std=c99) echo -c99 ;;
2969 -mcpu=*) echo -arch ${flag#*=} ;;
2970 -mieee) echo -ieee ;;
2971 -O*|-fast) echo $flag ;;
2972 -fno-math-errno) echo -assume nomath_errno ;;
2973 -g) echo -g3 ;;
2974 -Wall) echo -msg_enable level2 ;;
2975 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2976 -Wl,*) echo $flag ;;
2977 -f*|-W*) ;;
2978 *) echo $flag ;;
2979 esac
2980 done
2981 }
2982
2983 cparser_flags(){
2984 for flag; do
2985 case $flag in
2986 -Wno-switch) echo -Wno-switch-enum ;;
2987 -Wno-format-zero-length) ;;
2988 -Wdisabled-optimization) ;;
2989 -Wno-pointer-sign) echo -Wno-other ;;
2990 *) echo $flag ;;
2991 esac
2992 done
2993 }
2994
2995 msvc_common_flags(){
2996 for flag; do
2997 case $flag in
2998 # In addition to specifying certain flags under the compiler
2999 # specific filters, they must be specified here as well or else the
3000 # generic catch all at the bottom will print the original flag.
3001 -Wall) ;;
3002 -std=c99) ;;
3003 # Common flags
3004 -fomit-frame-pointer) ;;
3005 -g) echo -Z7 ;;
3006 -fno-math-errno) ;;
3007 -fno-common) ;;
3008 -fno-signed-zeros) ;;
3009 -fPIC) ;;
3010 -mthumb) ;;
3011 -march=*) ;;
3012 -lz) echo zlib.lib ;;
3013 -lavifil32) echo vfw32.lib ;;
3014 -lavicap32) echo vfw32.lib user32.lib ;;
3015 -lx264) echo libx264.lib ;;
3016 -l*) echo ${flag#-l}.lib ;;
3017 -L*) echo -libpath:${flag#-L} ;;
3018 *) echo $flag ;;
3019 esac
3020 done
3021 }
3022
3023 msvc_flags(){
3024 msvc_common_flags "$@"
3025 for flag; do
3026 case $flag in
3027 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3028 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3029 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3030 -wd4273 -wd4554 -wd4701 ;;
3031 esac
3032 done
3033 }
3034
3035 icl_flags(){
3036 msvc_common_flags "$@"
3037 for flag; do
3038 case $flag in
3039 # Despite what Intel's documentation says -Wall, which is supported
3040 # on Windows, does enable remarks so disable them here.
3041 -Wall) echo $flag -Qdiag-disable:remark ;;
3042 -std=c99) echo -Qstd=c99 ;;
3043 esac
3044 done
3045 }
3046
3047 pgi_flags(){
3048 for flag; do
3049 case $flag in
3050 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3051 -fomit-frame-pointer) echo -Mnoframe ;;
3052 -g) echo -gopt ;;
3053 *) echo $flag ;;
3054 esac
3055 done
3056 }
3057
3058 suncc_flags(){
3059 for flag; do
3060 case $flag in
3061 -march=*|-mcpu=*)
3062 case "${flag#*=}" in
3063 native) echo -xtarget=native ;;
3064 v9|niagara) echo -xarch=sparc ;;
3065 ultrasparc) echo -xarch=sparcvis ;;
3066 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3067 i586|pentium) echo -xchip=pentium ;;
3068 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3069 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3070 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3071 pentium4*) echo -xtarget=pentium4 ;;
3072 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3073 *-sse3) echo -xarch=sse3 ;;
3074 core2) echo -xarch=ssse3 -xchip=core2 ;;
3075 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3076 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3077 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3078 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3079 k8|opteron|athlon64|athlon-fx)
3080 echo -xarch=sse2a ;;
3081 athlon*) echo -xarch=pentium_proa ;;
3082 esac
3083 ;;
3084 -std=c99) echo -xc99 ;;
3085 -fomit-frame-pointer) echo -xregs=frameptr ;;
3086 -fPIC) echo -KPIC -xcode=pic32 ;;
3087 -W*,*) echo $flag ;;
3088 -f*-*|-W*|-mimpure-text) ;;
3089 -shared) echo -G ;;
3090 *) echo $flag ;;
3091 esac
3092 done
3093 }
3094
3095 tms470_flags(){
3096 for flag; do
3097 case $flag in
3098 -march=*|-mcpu=*)
3099 case "${flag#*=}" in
3100 armv7-a|cortex-a*) echo -mv=7a8 ;;
3101 armv7-r|cortex-r*) echo -mv=7r4 ;;
3102 armv7-m|cortex-m*) echo -mv=7m3 ;;
3103 armv6*|arm11*) echo -mv=6 ;;
3104 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3105 echo -mv=5e ;;
3106 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3107 esac
3108 ;;
3109 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3110 -mfpu=vfp) echo --float_support=vfpv2 ;;
3111 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3112 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3113 -msoft-float) echo --float_support=vfplib ;;
3114 -O[0-3]|-mf=*) echo $flag ;;
3115 -g) echo -g -mn ;;
3116 -pds=*) echo $flag ;;
3117 -D*|-I*) echo $flag ;;
3118 --gcc|--abi=*) echo $flag ;;
3119 -me) echo $flag ;;
3120 esac
3121 done
3122 }
3123
3124 probe_cc(){
3125 pfx=$1
3126 _cc=$2
3127
3128 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3129 unset _ld_o _ldflags _ld_lib _ld_path
3130 unset _depflags _DEPCMD _DEPFLAGS
3131 _flags_filter=echo
3132
3133 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3134 _type=llvm_gcc
3135 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3136 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3137 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3138 _cflags_speed='-O3'
3139 _cflags_size='-Os'
3140 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3141 _type=gcc
3142 gcc_version=$($_cc --version | head -n1)
3143 gcc_basever=$($_cc -dumpversion)
3144 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3145 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3146 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3147 if ! $_cc -dumpversion | grep -q '^2\.'; then
3148 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3149 fi
3150 _cflags_speed='-O3'
3151 _cflags_size='-Os'
3152 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3153 _type=icc
3154 _ident=$($_cc --version | head -n1)
3155 _depflags='-MMD'
3156 _cflags_speed='-O3'
3157 _cflags_size='-Os'
3158 _cflags_noopt='-O1'
3159 elif $_cc -v 2>&1 | grep -q xlc; then
3160 _type=xlc
3161 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3162 _cflags_speed='-O5'
3163 _cflags_size='-O5 -qcompact'
3164 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3165 _type=ccc
3166 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3167 _DEPFLAGS='-M'
3168 _cflags_speed='-fast'
3169 _cflags_size='-O1'
3170 _flags_filter=ccc_flags
3171 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3172 test -d "$sysroot" || die "No valid sysroot specified."
3173 _type=armcc
3174 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3175 armcc_conf="$PWD/armcc.conf"
3176 $_cc --arm_linux_configure \
3177 --arm_linux_config_file="$armcc_conf" \
3178 --configure_sysroot="$sysroot" \
3179 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3180 die "Error creating armcc configuration file."
3181 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3182 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3183 as_default="${cross_prefix}gcc"
3184 _depflags='-MMD'
3185 _cflags_speed='-O3'
3186 _cflags_size='-Os'
3187 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3188 _type=tms470
3189 _ident=$($_cc -version | head -n1 | tr -s ' ')
3190 _flags='--gcc --abi=eabi -me'
3191 _cc_e='-ppl -fe=$@'
3192 _cc_o='-fe=$@'
3193 _depflags='-ppa -ppd=$(@:.o=.d)'
3194 _cflags_speed='-O3 -mf=5'
3195 _cflags_size='-O3 -mf=2'
3196 _flags_filter=tms470_flags
3197 elif $_cc -v 2>&1 | grep -q clang; then
3198 _type=clang
3199 _ident=$($_cc --version 2>/dev/null | head -n1)
3200 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3201 _cflags_speed='-O3'
3202 _cflags_size='-Os'
3203 elif $_cc -V 2>&1 | grep -q Sun; then
3204 _type=suncc
3205 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3206 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3207 _DEPFLAGS='-xM1 -xc99'
3208 _ldflags='-std=c99'
3209 _cflags_speed='-O5'
3210 _cflags_size='-O5 -xspace'
3211 _flags_filter=suncc_flags
3212 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3213 _type=pathscale
3214 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3215 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3216 _cflags_speed='-O2'
3217 _cflags_size='-Os'
3218 _flags_filter='filter_out -Wdisabled-optimization'
3219 elif $_cc -v 2>&1 | grep -q Open64; then
3220 _type=open64
3221 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3222 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3223 _cflags_speed='-O2'
3224 _cflags_size='-Os'
3225 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3226 elif $_cc -V 2>&1 | grep -q Portland; then
3227 _type=pgi
3228 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3229 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3230 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3231 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3232 _cflags_noopt="-O1"
3233 _flags_filter=pgi_flags
3234 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3235 _type=armasm
3236 _ident=$($_cc | head -n1)
3237 # 4509: "This form of conditional instruction is deprecated"
3238 _flags="-nologo -ignore 4509"
3239 _flags_filter=armasm_flags
3240 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3241 _type=msvc
3242 _ident=$($_cc 2>&1 | head -n1)
3243 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3244 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3245 _cflags_speed="-O2"
3246 _cflags_size="-O1"
3247 if $_cc -nologo- 2>&1 | grep -q Linker; then
3248 _ld_o='-out:$@'
3249 else
3250 _ld_o='-Fe$@'
3251 fi
3252 _cc_o='-Fo$@'
3253 _cc_e='-P -Fi$@'
3254 _flags_filter=msvc_flags
3255 _ld_lib='lib%.a'
3256 _ld_path='-libpath:'
3257 _flags='-nologo'
3258 elif $_cc 2>&1 | grep -q Intel; then
3259 _type=icl
3260 _ident=$($_cc 2>&1 | head -n1)
3261 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3262 # Not only is O3 broken on 13.x+ but it is slower on all previous
3263 # versions (tested) as well.
3264 _cflags_speed="-O2"
3265 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3266 if $_cc 2>&1 | grep -q Linker; then
3267 _ld_o='-out:$@'
3268 else
3269 _ld_o='-Fe$@'
3270 fi
3271 _cc_o='-Fo$@'
3272 _cc_e='-P'
3273 _flags_filter=icl_flags
3274 _ld_lib='lib%.a'
3275 _ld_path='-libpath:'
3276 # -Qdiag-error to make icl error when seeing certain unknown arguments
3277 _flags='-nologo -Qdiag-error:4044,10157'
3278 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3279 # with MSVC which enables it by default.
3280 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3281 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3282 # lld can emulate multiple different linkers; in ms link.exe mode,
3283 # the -? parameter gives the help output which contains an identifyable
3284 # string, while it gives an error in other modes.
3285 _type=lld-link
3286 # The link.exe mode doesn't have a switch for getting the version,
3287 # but we can force it back to gnu mode and get the version from there.
3288 _ident=$($_cc -flavor gnu --version)
3289 _ld_o='-out:$@'
3290 _flags_filter=msvc_flags
3291 _ld_lib='lib%.a'
3292 _ld_path='-libpath:'
3293 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3294 _type=cparser
3295 _ident=$($_cc --version | head -n1)
3296 _depflags='-MMD'
3297 _cflags_speed='-O4'
3298 _cflags_size='-O2'
3299 _flags_filter=cparser_flags
3300 fi
3301
3302 eval ${pfx}_type=\$_type
3303 eval ${pfx}_ident=\$_ident
3304 }
3305
3306 set_ccvars(){
3307 eval ${1}_C=\${_cc_c-\${${1}_C}}
3308 eval ${1}_E=\${_cc_e-\${${1}_E}}
3309 eval ${1}_O=\${_cc_o-\${${1}_O}}
3310
3311 if [ -n "$_depflags" ]; then
3312 eval ${1}_DEPFLAGS=\$_depflags
3313 else
3314 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3315 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3316 eval DEP${1}FLAGS=\$_flags
3317 fi
3318 }
3319
3320 probe_cc cc "$cc"
3321 cflags_filter=$_flags_filter
3322 cflags_speed=$_cflags_speed
3323 cflags_size=$_cflags_size
3324 cflags_noopt=$_cflags_noopt
3325 add_cflags $_flags $_cflags
3326 cc_ldflags=$_ldflags
3327 set_ccvars CC
3328
3329 probe_cc hostcc "$host_cc"
3330 host_cflags_filter=$_flags_filter
3331 add_host_cflags $_flags $_cflags
3332 set_ccvars HOSTCC
3333
3334 test -n "$cc_type" && enable $cc_type ||
3335 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3336
3337 : ${as_default:=$cc}
3338 : ${objcc_default:=$cc}
3339 : ${dep_cc_default:=$cc}
3340 : ${ld_default:=$cc}
3341 : ${host_ld_default:=$host_cc}
3342 set_default ar as objcc dep_cc ld host_ld
3343
3344 probe_cc as "$as"
3345 asflags_filter=$_flags_filter
3346 add_asflags $_flags $_cflags
3347 set_ccvars AS
3348
3349 probe_cc objcc "$objcc"
3350 objcflags_filter=$_flags_filter
3351 add_objcflags $_flags $_cflags
3352 set_ccvars OBJC
3353
3354 probe_cc ld "$ld"
3355 ldflags_filter=$_flags_filter
3356 add_ldflags $_flags $_ldflags
3357 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3358 LD_O=${_ld_o-$LD_O}
3359 LD_LIB=${_ld_lib-$LD_LIB}
3360 LD_PATH=${_ld_path-$LD_PATH}
3361
3362 probe_cc hostld "$host_ld"
3363 host_ldflags_filter=$_flags_filter
3364 add_host_ldflags $_flags $_ldflags
3365 HOSTLD_O=${_ld_o-$HOSTLD_O}
3366
3367 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3368 probe_cc depcc "$dep_cc"
3369 CCDEP=${_DEPCMD:-$DEPCMD}
3370 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3371 DEPCCFLAGS=$_flags
3372 fi
3373
3374 if $ar 2>&1 | grep -q Microsoft; then
3375 arflags="-nologo"
3376 ar_o='-out:$@'
3377 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3378 arflags="rq"
3379 ar_o='$@'
3380 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3381 arflags='-Xany -r -c'
3382 ar_o='$@'
3383 else
3384 arflags="rc"
3385 ar_o='$@'
3386 fi
3387
3388 add_cflags $extra_cflags
3389 add_objcflags $extra_objcflags
3390 add_asflags $extra_cflags
3391
3392 if test -n "$sysroot"; then
3393 case "$cc_type" in
3394 gcc|llvm_gcc|clang)
3395 add_cppflags --sysroot="$sysroot"
3396 add_ldflags --sysroot="$sysroot"
3397 ;;
3398 tms470)
3399 add_cppflags -I"$sysinclude"
3400 add_ldflags --sysroot="$sysroot"
3401 ;;
3402 esac
3403 fi
3404
3405 if test "$cpu" = host; then
3406 enabled cross_compile &&
3407 die "--cpu=host makes no sense when cross-compiling."
3408
3409 case "$cc_type" in
3410 gcc|llvm_gcc)
3411 check_native(){
3412 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3413 sed -n "/cc1.*$1=/{
3414 s/.*$1=\\([^ ]*\\).*/\\1/
3415 p
3416 q
3417 }" $TMPE
3418 }
3419 cpu=$(check_native -march || check_native -mcpu)
3420 ;;
3421 esac
3422
3423 test "${cpu:-host}" = host &&
3424 die "--cpu=host not supported with compiler $cc"
3425 fi
3426
3427 # Deal with common $arch aliases
3428 case "$arch" in
3429 aarch64|arm64)
3430 arch="aarch64"
3431 ;;
3432 arm*)
3433 arch="arm"
3434 ;;
3435 mips*|IP*)
3436 case "$arch" in
3437 *el)
3438 add_cppflags -EL
3439 add_ldflags -EL
3440 ;;
3441 *eb)
3442 add_cppflags -EB
3443 add_ldflags -EB
3444 ;;
3445 esac
3446 arch="mips"
3447 ;;
3448 parisc*|hppa*)
3449 arch="parisc"
3450 ;;
3451 "Power Macintosh"|ppc*|powerpc*)
3452 arch="ppc"
3453 ;;
3454 s390|s390x)
3455 arch="s390"
3456 ;;
3457 sh4|sh)
3458 arch="sh4"
3459 ;;
3460 sun4u|sparc*)
3461 arch="sparc"
3462 ;;
3463 tilegx|tile-gx)
3464 arch="tilegx"
3465 ;;
3466 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3467 arch="x86"
3468 ;;
3469 esac
3470
3471 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3472 enable $arch
3473
3474 # Add processor-specific flags
3475 if enabled aarch64; then
3476
3477 case $cpu in
3478 armv*)
3479 cpuflags="-march=$cpu"
3480 ;;
3481 *)
3482 cpuflags="-mcpu=$cpu"
3483 ;;
3484 esac
3485
3486 elif enabled alpha; then
3487
3488 cpuflags="-mcpu=$cpu"
3489
3490 elif enabled arm; then
3491
3492 check_arm_arch() {
3493 check_cpp_condition stddef.h \
3494 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3495 $cpuflags
3496 }
3497
3498 probe_arm_arch() {
3499 if check_arm_arch 4; then echo armv4
3500 elif check_arm_arch 4T; then echo armv4t
3501 elif check_arm_arch 5; then echo armv5
3502 elif check_arm_arch 5E; then echo armv5e
3503 elif check_arm_arch 5T; then echo armv5t
3504 elif check_arm_arch 5TE; then echo armv5te
3505 elif check_arm_arch 5TEJ; then echo armv5te
3506 elif check_arm_arch 6; then echo armv6
3507 elif check_arm_arch 6J; then echo armv6j
3508 elif check_arm_arch 6K; then echo armv6k
3509 elif check_arm_arch 6Z; then echo armv6z
3510 elif check_arm_arch 6ZK; then echo armv6zk
3511 elif check_arm_arch 6T2; then echo armv6t2
3512 elif check_arm_arch 7; then echo armv7
3513 elif check_arm_arch 7A 7_A; then echo armv7-a
3514 elif check_arm_arch 7S; then echo armv7-a
3515 elif check_arm_arch 7R 7_R; then echo armv7-r
3516 elif check_arm_arch 7M 7_M; then echo armv7-m
3517 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3518 elif check_arm_arch 8A 8_A; then echo armv8-a
3519 fi
3520 }
3521
3522 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3523
3524 case $cpu in
3525 armv*)
3526 cpuflags="-march=$cpu"
3527 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3528 ;;
3529 *)
3530 cpuflags="-mcpu=$cpu"
3531 case $cpu in
3532 cortex-a*) subarch=armv7a ;;
3533 cortex-r*) subarch=armv7r ;;
3534 cortex-m*) enable thumb; subarch=armv7m ;;
3535 arm11*) subarch=armv6 ;;
3536 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3537 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3538 *) subarch=$(probe_arm_arch) ;;
3539 esac
3540 ;;
3541 esac
3542
3543 case "$subarch" in
3544 armv5t*) enable fast_clz ;;
3545 armv[6-8]*) enable fast_clz fast_unaligned ;;
3546 esac
3547
3548 elif enabled avr32; then
3549
3550 case $cpu in
3551 ap7[02]0[0-2])
3552 subarch="avr32_ap"
3553 cpuflags="-mpart=$cpu"
3554 ;;
3555 ap)
3556 subarch="avr32_ap"
3557 cpuflags="-march=$cpu"
3558 ;;
3559 uc3[ab]*)
3560 subarch="avr32_uc"
3561 cpuflags="-mcpu=$cpu"
3562 ;;
3563 uc)
3564 subarch="avr32_uc"
3565 cpuflags="-march=$cpu"
3566 ;;
3567 esac
3568
3569 elif enabled bfin; then
3570
3571 cpuflags="-mcpu=$cpu"
3572
3573 elif enabled mips; then
3574
3575 cpuflags="-march=$cpu"
3576
3577 elif enabled ppc; then
3578
3579 disable ldbrx
3580
3581 case $(tolower $cpu) in
3582 601|ppc601|powerpc601)
3583 cpuflags="-mcpu=601"
3584 disable altivec
3585 ;;
3586 603*|ppc603*|powerpc603*)
3587 cpuflags="-mcpu=603"
3588 disable altivec
3589 ;;
3590 604*|ppc604*|powerpc604*)
3591 cpuflags="-mcpu=604"
3592 disable altivec
3593 ;;
3594 g3|75*|ppc75*|powerpc75*)
3595 cpuflags="-mcpu=750"
3596 disable altivec
3597 ;;
3598 g4|745*|ppc745*|powerpc745*)
3599 cpuflags="-mcpu=7450"
3600 disable vsx
3601 ;;
3602 74*|ppc74*|powerpc74*)
3603 cpuflags="-mcpu=7400"
3604 disable vsx
3605 ;;
3606 g5|970|ppc970|powerpc970)
3607 cpuflags="-mcpu=970"
3608 disable vsx
3609 ;;
3610 power[3-6]*)
3611 cpuflags="-mcpu=$cpu"
3612 disable vsx
3613 ;;
3614 power[7-8]*)
3615 cpuflags="-mcpu=$cpu"
3616 enable ldbrx
3617 ;;
3618 cell)
3619 cpuflags="-mcpu=cell"
3620 enable ldbrx
3621 disable vsx
3622 ;;
3623 e500mc)
3624 cpuflags="-mcpu=e500mc"
3625 disable altivec
3626 ;;
3627 e500v2)
3628 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3629 disable altivec
3630 disable dcbzl
3631 ;;
3632 e500)
3633 cpuflags="-mcpu=8540 -mhard-float"
3634 disable altivec
3635 disable dcbzl
3636 ;;
3637 esac
3638
3639 elif enabled sparc; then
3640
3641 case $cpu in
3642 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3643 cpuflags="-mcpu=$cpu"
3644 ;;
3645 ultrasparc*|niagara[234])
3646 cpuflags="-mcpu=$cpu"
3647 ;;
3648 esac
3649
3650 elif enabled x86; then
3651
3652 case $cpu in
3653 i[345]86|pentium)
3654 cpuflags="-march=$cpu"
3655 disable i686
3656 disable mmx
3657 ;;
3658 # targets that do NOT support nopl and conditional mov (cmov)
3659 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3660 cpuflags="-march=$cpu"
3661 disable i686
3662 ;;
3663 # targets that do support nopl and conditional mov (cmov)
3664 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3665 cpuflags="-march=$cpu"
3666 enable i686
3667 enable fast_cmov
3668 ;;
3669 # targets that do support conditional mov but on which it's slow
3670 pentium4|pentium4m|prescott|nocona)
3671 cpuflags="-march=$cpu"
3672 enable i686
3673 disable fast_cmov
3674 ;;
3675 esac
3676
3677 fi
3678
3679 if [ "$cpu" != generic ]; then
3680 add_cflags $cpuflags
3681 add_asflags $cpuflags
3682 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3683 fi
3684
3685 # compiler sanity check
3686 check_exec <<EOF
3687 int main(void){ return 0; }
3688 EOF
3689 if test "$?" != 0; then
3690 echo "$cc is unable to create an executable file."
3691 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3692 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3693 echo "Only do this if you know what cross compiling means."
3694 fi
3695 die "C compiler test failed."
3696 fi
3697
3698 add_cppflags -D_ISOC99_SOURCE
3699 check_cflags -std=c99
3700 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3701 #include <stdlib.h>
3702 EOF
3703 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3704 #include <stdlib.h>
3705 EOF
3706
3707 add_host_cppflags -D_ISOC99_SOURCE
3708 check_host_cflags -std=c99
3709 check_host_cflags -Wall
3710 check_host_cflags -O3
3711
3712 check_64bit(){
3713 arch32=$1
3714 arch64=$2
3715 expr=$3
3716 check_code cc "" "int test[2*($expr) - 1]" &&
3717 subarch=$arch64 || subarch=$arch32
3718 }
3719
3720 case "$arch" in
3721 aarch64|alpha|ia64)