45f52560fd4507c22da3be7e9aa942994eb36f14
[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-libilbc ILBC audio encoding/decoding
201 --enable-libkvazaar HEVC video encoding
202 --enable-libmp3lame MP3 audio encoding
203 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
204 --enable-libopencore-amrwb AMR-WB audio decoding
205 --enable-libopencv computer vision
206 --enable-libopenh264 H.264 video encoding/decoding
207 --enable-libopenjpeg JPEG 2000 image encoding/decoding
208 --enable-libopus Opus audio encoding/decoding
209 --enable-libpulse Pulseaudio sound server
210 --enable-librtmp RTMP streaming
211 --enable-libschroedinger Dirac video encoding/decoding
212 --enable-libsnappy snappy compression
213 --enable-libspeex Speex audio encoding/decoding
214 --enable-libtheora Theora video encoding/decoding
215 --enable-libtwolame MP2 audio encoding
216 --enable-libvo-aacenc AAC audio encoding
217 --enable-libvo-amrwbenc AMR-WB audio encoding
218 --enable-libvorbis Vorbis audio encoding/decoding
219 --enable-libvpx VP* video encoding/decoding
220 --enable-libwavpack Wavpack audio encoding/decoding
221 --enable-libwebp WebP image encoding/decoding
222 --enable-libx264 H.264 video encoding
223 --enable-libx265 HEVC video encoding
224 --enable-libxavs Chinese AVS video encoding
225 --enable-libxcb X window system protocol communication
226 --enable-libxcb-shm X11 shm communication [auto]
227 --enable-libxcb-xfixes X11 mouse rendering [auto]
228 --enable-libxvid MPEG-4 ASP video encoding
229 --enable-openssl crypto
230 --enable-zlib compression [autodetect]
231
232 The following libraries provide various hardware acceleration features:
233 --enable-cuda Nvidia CUDA (dynamically linked)
234 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
235 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
236 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
237 --enable-libnpp Nvidia CUDA processing
238 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
239 --enable-nvenc Nvidia video encoding
240 --enable-omx OpenMAX IL
241 --enable-omx-rpi OpenMAX IL for Raspberry Pi
242 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
243 --enable-vda Apple Video Decode Acceleration [auto]
244 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
245
246 Toolchain options:
247 --arch=ARCH select architecture [$arch]
248 --cpu=CPU select the minimum required CPU (affects
249 instruction selection, may crash on older CPUs)
250 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
251 --enable-cross-compile assume a cross-compiler is used
252 --sysroot=PATH root of cross-build tree
253 --sysinclude=PATH location of cross-build system headers
254 --target-os=OS compiler targets OS [$target_os]
255 --target-exec=CMD command to run executables on target
256 --target-path=DIR path to view of build directory on target
257 --target-samples=DIR path to samples directory on target
258 --toolchain=NAME set tool defaults according to NAME
259 --nm=NM use nm tool
260 --ar=AR use archive tool AR [$ar_default]
261 --as=AS use assembler AS [$as_default]
262 --cc=CC use C compiler CC [$cc_default]
263 --objcc=OCC use ObjC compiler OCC [$cc_default]
264 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
265 --ld=LD use linker LD
266 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
267 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
268 --host-cc=HOSTCC use host C compiler HOSTCC
269 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
270 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
271 --host-ld=HOSTLD use host linker HOSTLD
272 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
273 --host-libs=HLIBS use libs HLIBS when linking for host
274 --host-os=OS compiler host OS [$target_os]
275 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
276 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
277 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
278 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
279 --extra-libs=ELIBS add ELIBS [$ELIBS]
280 --extra-version=STRING version string suffix []
281 --optflags=OPTFLAGS override optimization-related compiler flags
282 --build-suffix=SUFFIX library name suffix []
283 --enable-pic build position-independent code
284 --enable-thumb compile for Thumb instruction set
285 --enable-lto use link-time optimization
286 --env="ENV=override" override the environment variables
287
288 Advanced options (experts only):
289 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
290 --custom-allocator=NAME use a supported custom allocator
291 --disable-symver disable symbol versioning
292 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
293 --disable-safe-bitstream-reader
294 disable buffer boundary checking in bitreaders
295 (faster, but may crash)
296 --enable-memalign-hack emulate memalign, interferes with memory debuggers
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 libilbc
1274 libkvazaar
1275 libmp3lame
1276 libopencv
1277 libopenh264
1278 libopenjpeg
1279 libopus
1280 libpulse
1281 librtmp
1282 libschroedinger
1283 libsnappy
1284 libspeex
1285 libtheora
1286 libtwolame
1287 libvorbis
1288 libvpx
1289 libwavpack
1290 libwebp
1291 libxcb
1292 libxcb_shm
1293 libxcb_xfixes
1294 zlib
1295 "
1296
1297 FEATURE_LIST="
1298 gray
1299 hardcoded_tables
1300 omx_rpi
1301 runtime_cpudetect
1302 safe_bitstream_reader
1303 shared
1304 small
1305 sram
1306 static
1307 swscale_alpha
1308 "
1309
1310 LIBRARY_LIST="
1311 avcodec
1312 avdevice
1313 avfilter
1314 avformat
1315 avresample
1316 avutil
1317 swscale
1318 "
1319
1320 LICENSE_LIST="
1321 gpl
1322 nonfree
1323 version3
1324 "
1325
1326 PROGRAM_LIST="
1327 avconv
1328 avplay
1329 avprobe
1330 "
1331
1332 SUBSYSTEM_LIST="
1333 dct
1334 doc
1335 error_resilience
1336 faan
1337 fft
1338 lsp
1339 lzo
1340 mdct
1341 network
1342 rdft
1343 "
1344
1345 CONFIG_LIST="
1346 $COMPONENT_LIST
1347 $EXAMPLE_LIST
1348 $EXTERNAL_LIBRARY_LIST
1349 $HWACCEL_LIBRARY_LIST
1350 $FEATURE_LIST
1351 $LICENSE_LIST
1352 $LIBRARY_LIST
1353 $PROGRAM_LIST
1354 $SUBSYSTEM_LIST
1355 memalign_hack
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 simd_align_16
1472 "
1473
1474 BUILTIN_LIST="
1475 atomic_cas_ptr
1476 machine_rw_barrier
1477 MemoryBarrier
1478 mm_empty
1479 rdtsc
1480 sem_timedwait
1481 sync_val_compare_and_swap
1482 "
1483 HAVE_LIST_CMDLINE="
1484 inline_asm
1485 symver
1486 yasm
1487 "
1488
1489 HAVE_LIST_PUB="
1490 bigendian
1491 fast_unaligned
1492 "
1493
1494 HEADERS_LIST="
1495 AVFoundation_AVFoundation_h
1496 alsa_asoundlib_h
1497 altivec_h
1498 arpa_inet_h
1499 cdio_paranoia_h
1500 cdio_paranoia_paranoia_h
1501 dispatch_dispatch_h
1502 dev_bktr_ioctl_bt848_h
1503 dev_bktr_ioctl_meteor_h
1504 dev_ic_bt8xx_h
1505 dev_video_bktr_ioctl_bt848_h
1506 dev_video_meteor_ioctl_meteor_h
1507 direct_h
1508 dlfcn_h
1509 d3d11_h
1510 dxva_h
1511 gsm_h
1512 io_h
1513 mach_mach_time_h
1514 machine_ioctl_bt848_h
1515 machine_ioctl_meteor_h
1516 malloc_h
1517 poll_h
1518 sndio_h
1519 soundcard_h
1520 sys_mman_h
1521 sys_param_h
1522 sys_resource_h
1523 sys_select_h
1524 sys_soundcard_h
1525 sys_time_h
1526 sys_un_h
1527 sys_videoio_h
1528 unistd_h
1529 valgrind_valgrind_h
1530 windows_h
1531 winsock2_h
1532 "
1533
1534 INTRINSICS_LIST="
1535 intrinsics_neon
1536 "
1537
1538 MATH_FUNCS="
1539 atanf
1540 atan2f
1541 cbrtf
1542 cosf
1543 exp2
1544 exp2f
1545 expf
1546 isinf
1547 isnan
1548 ldexpf
1549 llrint
1550 llrintf
1551 log2
1552 log2f
1553 log10f
1554 lrint
1555 lrintf
1556 powf
1557 rint
1558 round
1559 roundf
1560 sinf
1561 trunc
1562 truncf
1563 "
1564
1565 SYSTEM_FUNCS="
1566 aligned_malloc
1567 clock_gettime
1568 closesocket
1569 CommandLineToArgvW
1570 CoTaskMemFree
1571 CryptGenRandom
1572 dlopen
1573 fcntl
1574 flt_lim
1575 fork
1576 getaddrinfo
1577 gethrtime
1578 getopt
1579 GetProcessAffinityMask
1580 GetProcessMemoryInfo
1581 GetProcessTimes
1582 getrusage
1583 GetSystemTimeAsFileTime
1584 gettimeofday
1585 gmtime_r
1586 inet_aton
1587 isatty
1588 jack_port_get_latency_range
1589 LoadLibrary
1590 localtime_r
1591 mach_absolute_time
1592 MapViewOfFile
1593 memalign
1594 mkstemp
1595 mmap
1596 mprotect
1597 nanosleep
1598 posix_memalign
1599 sched_getaffinity
1600 SetConsoleTextAttribute
1601 setmode
1602 setrlimit
1603 Sleep
1604 strerror_r
1605 sysconf
1606 sysctl
1607 usleep
1608 VirtualAlloc
1609 "
1610
1611 TOOLCHAIN_FEATURES="
1612 as_dn_directive
1613 as_fpu_directive
1614 as_func
1615 as_object_arch
1616 asm_mod_q
1617 attribute_may_alias
1618 attribute_packed
1619 ebp_available
1620 ebx_available
1621 gnu_as
1622 ibm_asm
1623 inline_asm_labels
1624 pragma_deprecated
1625 symver_asm_label
1626 symver_gnu_asm
1627 vfp_args
1628 xform_asm
1629 xmm_clobbers
1630 "
1631
1632 TYPES_LIST="
1633 CONDITION_VARIABLE_Ptr
1634 socklen_t
1635 struct_addrinfo
1636 struct_group_source_req
1637 struct_ip_mreq_source
1638 struct_ipv6_mreq
1639 struct_pollfd
1640 struct_rusage_ru_maxrss
1641 struct_sockaddr_in6
1642 struct_sockaddr_sa_len
1643 struct_sockaddr_storage
1644 struct_v4l2_frmivalenum_discrete
1645 "
1646
1647 HAVE_LIST="
1648 $ARCH_EXT_LIST
1649 $(add_suffix _external $ARCH_EXT_LIST)
1650 $(add_suffix _inline $ARCH_EXT_LIST)
1651 $ARCH_FEATURES
1652 $ATOMICS_LIST
1653 $BUILTIN_LIST
1654 $HAVE_LIST_CMDLINE
1655 $HAVE_LIST_PUB
1656 $HEADERS_LIST
1657 $INTRINSICS_LIST
1658 $MATH_FUNCS
1659 $SYSTEM_FUNCS
1660 $THREADS_LIST
1661 $TOOLCHAIN_FEATURES
1662 $TYPES_LIST
1663 atomics_native
1664 dos_paths
1665 dxva2_lib
1666 libc_msvcrt
1667 libdc1394_1
1668 libdc1394_2
1669 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1670 sdl
1671 section_data_rel_ro
1672 threads
1673 vaapi_drm
1674 vaapi_x11
1675 vdpau_x11
1676 xlib
1677 "
1678
1679 # options emitted with CONFIG_ prefix but not available on the command line
1680 CONFIG_EXTRA="
1681 aandcttables
1682 ac3dsp
1683 audio_frame_queue
1684 audiodsp
1685 blockdsp
1686 bswapdsp
1687 cabac
1688 dirac_parse
1689 dvprofile
1690 faandct
1691 faanidct
1692 fdctdsp
1693 flacdsp
1694 fmtconvert
1695 g722dsp
1696 gcrypt
1697 gmp
1698 golomb
1699 gplv3
1700 h263dsp
1701 h264chroma
1702 h264dsp
1703 h264parse
1704 h264pred
1705 h264qpel
1706 hpeldsp
1707 huffman
1708 huffyuvdsp
1709 huffyuvencdsp
1710 idctdsp
1711 iirfilter
1712 imdct15
1713 intrax8
1714 iso_media
1715 ividsp
1716 jpegtables
1717 libx262
1718 lgplv3
1719 lpc
1720 lzf
1721 me_cmp
1722 mpeg_er
1723 mpegaudio
1724 mpegaudiodsp
1725 mpegvideo
1726 mpegvideoenc
1727 mss34dsp
1728 pixblockdsp
1729 qpeldsp
1730 qsv
1731 qsvdec
1732 qsvenc
1733 rangecoder
1734 riffdec
1735 riffenc
1736 rtpdec
1737 rtpenc_chain
1738 rv34dsp
1739 sinewin
1740 snappy
1741 srtp
1742 startcode
1743 texturedsp
1744 texturedspenc
1745 tpeldsp
1746 vaapi_encode
1747 vc1dsp
1748 videodsp
1749 vp3dsp
1750 vp56dsp
1751 vp8dsp
1752 wma_freqs
1753 wmv2dsp
1754 "
1755
1756 CMDLINE_SELECT="
1757 $ARCH_EXT_LIST
1758 $CONFIG_LIST
1759 $HAVE_LIST_CMDLINE
1760 $THREADS_LIST
1761 asm
1762 cross_compile
1763 debug
1764 extra_warnings
1765 logging
1766 lto
1767 optimizations
1768 rpath
1769 "
1770
1771 PATHS_LIST="
1772 bindir
1773 datadir
1774 docdir
1775 incdir
1776 libdir
1777 mandir
1778 prefix
1779 shlibdir
1780 "
1781
1782 CMDLINE_SET="
1783 $PATHS_LIST
1784 ar
1785 arch
1786 as
1787 build_suffix
1788 cc
1789 objcc
1790 cpu
1791 cross_prefix
1792 custom_allocator
1793 dep_cc
1794 env
1795 extra_version
1796 host_cc
1797 host_cflags
1798 host_ld
1799 host_ldflags
1800 host_libs
1801 host_os
1802 ld
1803 logfile
1804 malloc_prefix
1805 nm
1806 optflags
1807 pkg_config
1808 pkg_config_flags
1809 random_seed
1810 samples
1811 sysinclude
1812 sysroot
1813 target_exec
1814 target_os
1815 target_path
1816 target_samples
1817 toolchain
1818 "
1819
1820 CMDLINE_APPEND="
1821 extra_cflags
1822 extra_objcflags
1823 host_cppflags
1824 "
1825
1826 # code dependency declarations
1827
1828 # architecture extensions
1829
1830 armv5te_deps="arm"
1831 armv6_deps="arm"
1832 armv6t2_deps="arm"
1833 armv8_deps="aarch64"
1834 neon_deps_any="aarch64 arm"
1835 intrinsics_neon_deps="neon"
1836 vfp_deps_any="aarch64 arm"
1837 vfpv3_deps="vfp"
1838
1839 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1840
1841 altivec_deps="ppc"
1842 ppc4xx_deps="ppc"
1843 vsx_deps="altivec"
1844 power8_deps="vsx"
1845
1846 cpunop_deps="i686"
1847 x86_64_select="i686"
1848 x86_64_suggest="fast_cmov"
1849
1850 amd3dnow_deps="mmx"
1851 amd3dnowext_deps="amd3dnow"
1852 i686_deps="x86"
1853 mmx_deps="x86"
1854 mmxext_deps="mmx"
1855 sse_deps="mmxext"
1856 sse2_deps="sse"
1857 sse3_deps="sse2"
1858 ssse3_deps="sse3"
1859 sse4_deps="ssse3"
1860 sse42_deps="sse4"
1861 avx_deps="sse42"
1862 xop_deps="avx"
1863 fma3_deps="avx"
1864 fma4_deps="avx"
1865 avx2_deps="avx"
1866
1867 mmx_external_deps="yasm"
1868 mmx_inline_deps="inline_asm"
1869 mmx_suggest="mmx_external mmx_inline"
1870
1871 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1872 eval dep=\$${ext}_deps
1873 eval ${ext}_external_deps='"${dep}_external"'
1874 eval ${ext}_inline_deps='"${dep}_inline"'
1875 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1876 done
1877
1878 aligned_stack_if_any="aarch64 ppc x86"
1879 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1880 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1881 fast_unaligned_if_any="aarch64 ppc x86"
1882 simd_align_16_if_any="altivec neon sse"
1883
1884 # system capabilities
1885 symver_if_any="symver_asm_label symver_gnu_asm"
1886 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1887
1888 # threading support
1889 atomics_gcc_if="sync_val_compare_and_swap"
1890 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1891 atomics_win32_if="MemoryBarrier"
1892 atomics_native_if_any="$ATOMICS_LIST"
1893 w32threads_deps="atomics_native"
1894 threads_if_any="$THREADS_LIST"
1895
1896 # subsystems
1897 dct_select="rdft"
1898 dirac_parse_select="golomb"
1899 error_resilience_select="me_cmp"
1900 faandct_deps="faan fdctdsp"
1901 faanidct_deps="faan idctdsp"
1902 h264dsp_select="startcode"
1903 intrax8_select="blockdsp idctdsp"
1904 mdct_select="fft"
1905 rdft_select="fft"
1906 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1907 mpeg_er_select="error_resilience"
1908 mpegaudio_select="mpegaudiodsp"
1909 mpegaudiodsp_select="dct"
1910 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1911 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1912 vc1dsp_select="h264chroma qpeldsp startcode"
1913
1914 # decoders / encoders
1915 aac_decoder_select="imdct15 mdct sinewin"
1916 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1917 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1918 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1919 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1920 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1921 adpcm_g722_decoder_select="g722dsp"
1922 adpcm_g722_encoder_select="g722dsp"
1923 aic_decoder_select="golomb idctdsp"
1924 alac_encoder_select="lpc"
1925 als_decoder_select="bswapdsp"
1926 amrnb_decoder_select="lsp"
1927 amrwb_decoder_select="lsp"
1928 amv_decoder_select="sp5x_decoder"
1929 ape_decoder_select="bswapdsp"
1930 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1931 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1932 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1933 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1934 atrac1_decoder_select="mdct sinewin"
1935 atrac3_decoder_select="mdct"
1936 atrac3p_decoder_select="mdct sinewin"
1937 bink_decoder_select="blockdsp hpeldsp"
1938 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1939 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1940 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1941 cllc_decoder_select="bswapdsp"
1942 comfortnoise_encoder_select="lpc"
1943 cook_decoder_select="audiodsp mdct sinewin"
1944 cscd_decoder_select="lzo"
1945 cscd_decoder_suggest="zlib"
1946 dca_decoder_select="fmtconvert mdct"
1947 dds_decoder_select="texturedsp"
1948 dnxhd_decoder_select="blockdsp idctdsp"
1949 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1950 dvvideo_decoder_select="dvprofile idctdsp"
1951 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1952 dxa_decoder_deps="zlib"
1953 dxv_decoder_select="lzf texturedsp"
1954 eac3_decoder_select="ac3_decoder"
1955 eac3_encoder_select="ac3_encoder"
1956 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1957 eatgq_decoder_select="aandcttables idctdsp"
1958 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1959 exr_decoder_deps="zlib"
1960 ffv1_decoder_select="golomb rangecoder"
1961 ffv1_encoder_select="rangecoder"
1962 ffvhuff_decoder_select="huffyuv_decoder"
1963 ffvhuff_encoder_select="huffyuv_encoder"
1964 fic_decoder_select="golomb"
1965 flac_decoder_select="flacdsp golomb"
1966 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1967 flashsv_decoder_deps="zlib"
1968 flashsv_encoder_deps="zlib"
1969 flashsv2_decoder_deps="zlib"
1970 flv_decoder_select="h263_decoder"
1971 flv_encoder_select="h263_encoder"
1972 fourxm_decoder_select="blockdsp bswapdsp"
1973 fraps_decoder_select="bswapdsp huffman"
1974 g2m_decoder_deps="zlib"
1975 g2m_decoder_select="blockdsp idctdsp jpegtables"
1976 h261_decoder_select="mpeg_er mpegvideo"
1977 h261_encoder_select="aandcttables mpegvideoenc"
1978 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1979 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1980 h263i_decoder_select="h263_decoder"
1981 h263p_encoder_select="h263_encoder"
1982 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1983 h264_decoder_suggest="error_resilience"
1984 hap_decoder_select="snappy texturedsp"
1985 hap_encoder_deps="libsnappy"
1986 hap_encoder_select="texturedspenc"
1987 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1988 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1989 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1990 iac_decoder_select="imc_decoder"
1991 imc_decoder_select="bswapdsp fft mdct sinewin"
1992 indeo3_decoder_select="hpeldsp"
1993 indeo4_decoder_select="ividsp"
1994 indeo5_decoder_select="ividsp"
1995 interplay_video_decoder_select="hpeldsp"
1996 jpegls_decoder_select="golomb mjpeg_decoder"
1997 jpegls_encoder_select="golomb"
1998 jv_decoder_select="blockdsp"
1999 lagarith_decoder_select="huffyuvdsp"
2000 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2001 loco_decoder_select="golomb"
2002 magicyuv_decoder_select="huffyuvdsp"
2003 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2004 metasound_decoder_select="lsp mdct sinewin"
2005 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2006 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2007 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2008 mjpegb_decoder_select="mjpeg_decoder"
2009 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2010 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2011 mlp_decoder_select="mlp_parser"
2012 motionpixels_decoder_select="bswapdsp"
2013 mp1_decoder_select="mpegaudio"
2014 mp1float_decoder_select="mpegaudio"
2015 mp2_decoder_select="mpegaudio"
2016 mp2float_decoder_select="mpegaudio"
2017 mp3_decoder_select="mpegaudio"
2018 mp3adu_decoder_select="mpegaudio"
2019 mp3adufloat_decoder_select="mpegaudio"
2020 mp3float_decoder_select="mpegaudio"
2021 mp3on4_decoder_select="mpegaudio"
2022 mp3on4float_decoder_select="mpegaudio"
2023 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2024 mpc8_decoder_select="mpegaudiodsp"
2025 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2026 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2027 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2028 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2029 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2030 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2031 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2032 mpeg4_encoder_select="h263_encoder"
2033 msa1_decoder_select="mss34dsp"
2034 msmpeg4v1_decoder_select="h263_decoder"
2035 msmpeg4v2_decoder_select="h263_decoder"
2036 msmpeg4v2_encoder_select="h263_encoder"
2037 msmpeg4v3_decoder_select="h263_decoder"
2038 msmpeg4v3_encoder_select="h263_encoder"
2039 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2040 mts2_decoder_select="mss34dsp"
2041 mxpeg_decoder_select="mjpeg_decoder"
2042 nellymoser_decoder_select="mdct sinewin"
2043 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2044 nuv_decoder_select="idctdsp lzo"
2045 on2avc_decoder_select="mdct"
2046 opus_decoder_deps="avresample"
2047 opus_decoder_select="imdct15"
2048 png_decoder_deps="zlib"
2049 png_encoder_deps="zlib"
2050 png_encoder_select="huffyuvencdsp"
2051 prores_decoder_select="idctdsp"
2052 prores_encoder_select="fdctdsp"
2053 qcelp_decoder_select="lsp"
2054 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2055 ra_144_encoder_select="audio_frame_queue lpc"
2056 ralf_decoder_select="golomb"
2057 rscc_decoder_deps="zlib"
2058 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2059 rv10_encoder_select="h263_encoder"
2060 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2061 rv20_encoder_select="h263_encoder"
2062 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2063 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2064 screenpresso_decoder_deps="zlib"
2065 shorten_decoder_select="golomb"
2066 sipr_decoder_select="lsp"
2067 sp5x_decoder_select="mjpeg_decoder"
2068 svq1_decoder_select="hpeldsp"
2069 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2070 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2071 svq3_decoder_suggest="zlib"
2072 tak_decoder_select="audiodsp"
2073 tdsc_decoder_deps="zlib"
2074 tdsc_decoder_select="mjpeg_decoder"
2075 theora_decoder_select="vp3_decoder"
2076 thp_decoder_select="mjpeg_decoder"
2077 tiff_decoder_suggest="zlib"
2078 tiff_encoder_suggest="zlib"
2079 truehd_decoder_select="mlp_decoder"
2080 truemotion2_decoder_select="bswapdsp"
2081 truespeech_decoder_select="bswapdsp"
2082 tscc_decoder_deps="zlib"
2083 txd_decoder_select="texturedsp"
2084 twinvq_decoder_select="mdct lsp sinewin"
2085 utvideo_decoder_select="bswapdsp"
2086 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2087 vble_decoder_select="huffyuvdsp"
2088 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2089 vc1image_decoder_select="vc1_decoder"
2090 vorbis_decoder_select="mdct"
2091 vorbis_encoder_select="mdct"
2092 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2093 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2094 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2095 vp6a_decoder_select="vp6_decoder"
2096 vp6f_decoder_select="vp6_decoder"
2097 vp7_decoder_select="h264pred videodsp vp8dsp"
2098 vp8_decoder_select="h264pred videodsp vp8dsp"
2099 vp9_decoder_select="videodsp"
2100 webp_decoder_select="vp8_decoder"
2101 wmapro_decoder_select="mdct sinewin wma_freqs"
2102 wmav1_decoder_select="mdct sinewin wma_freqs"
2103 wmav1_encoder_select="mdct sinewin wma_freqs"
2104 wmav2_decoder_select="mdct sinewin wma_freqs"
2105 wmav2_encoder_select="mdct sinewin wma_freqs"
2106 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2107 wmv1_decoder_select="h263_decoder"
2108 wmv1_encoder_select="h263_encoder"
2109 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2110 wmv2_encoder_select="h263_encoder wmv2dsp"
2111 wmv3_decoder_select="vc1_decoder"
2112 wmv3image_decoder_select="wmv3_decoder"
2113 zerocodec_decoder_deps="zlib"
2114 zlib_decoder_deps="zlib"
2115 zlib_encoder_deps="zlib"
2116 zmbv_decoder_deps="zlib"
2117 zmbv_encoder_deps="zlib"
2118
2119 # hardware accelerators
2120 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2121 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2122 vaapi_deps="va_va_h"
2123 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2124 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2125 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2126
2127 h263_vaapi_hwaccel_deps="vaapi"
2128 h263_vaapi_hwaccel_select="h263_decoder"
2129 h264_d3d11va_hwaccel_deps="d3d11va"
2130 h264_d3d11va_hwaccel_select="h264_decoder"
2131 h264_dxva2_hwaccel_deps="dxva2"
2132 h264_dxva2_hwaccel_select="h264_decoder"
2133 h264_mmal_decoder_deps="mmal"
2134 h264_mmal_decoder_select="mmal"
2135 h264_mmal_hwaccel_deps="mmal"
2136 h264_omx_encoder_deps="omx"
2137 h264_qsv_hwaccel_deps="libmfx"
2138 h264_vaapi_hwaccel_deps="vaapi"
2139 h264_vaapi_hwaccel_select="h264_decoder"
2140 h264_vda_hwaccel_deps="vda"
2141 h264_vda_hwaccel_select="h264_decoder"
2142 h264_vda_old_hwaccel_deps="vda"
2143 h264_vda_old_hwaccel_select="h264_decoder"
2144 h264_vdpau_hwaccel_deps="vdpau"
2145 h264_vdpau_hwaccel_select="h264_decoder"
2146 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2147 hevc_d3d11va_hwaccel_select="hevc_decoder"
2148 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2149 hevc_dxva2_hwaccel_select="hevc_decoder"
2150 hevc_qsv_hwaccel_deps="libmfx"
2151 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2152 hevc_vdpau_hwaccel_select="hevc_decoder"
2153 mpeg1_vdpau_hwaccel_deps="vdpau"
2154 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2155 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2156 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2157 mpeg2_dxva2_hwaccel_deps="dxva2"
2158 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2159 mpeg2_mmal_decoder_deps="mmal"
2160 mpeg2_mmal_decoder_select="mmal"
2161 mpeg2_mmal_hwaccel_deps="mmal"
2162 mpeg2_qsv_hwaccel_deps="libmfx"
2163 mpeg2_vaapi_hwaccel_deps="vaapi"
2164 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2165 mpeg2_vdpau_hwaccel_deps="vdpau"
2166 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2167 mpeg4_omx_encoder_deps="omx"
2168 mpeg4_vaapi_hwaccel_deps="vaapi"
2169 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2170 mpeg4_vdpau_hwaccel_deps="vdpau"
2171 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2172 vc1_d3d11va_hwaccel_deps="d3d11va"
2173 vc1_d3d11va_hwaccel_select="vc1_decoder"
2174 vc1_dxva2_hwaccel_deps="dxva2"
2175 vc1_dxva2_hwaccel_select="vc1_decoder"
2176 vc1_mmal_decoder_deps="mmal"
2177 vc1_mmal_decoder_select="mmal"
2178 vc1_mmal_hwaccel_deps="mmal"
2179 vc1_vaapi_hwaccel_deps="vaapi"
2180 vc1_vaapi_hwaccel_select="vc1_decoder"
2181 vc1_vdpau_hwaccel_deps="vdpau"
2182 vc1_vdpau_hwaccel_select="vc1_decoder"
2183 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2184 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2185 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2186 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2187
2188 # hardware-accelerated codecs
2189 nvenc_deps_any="dlopen LoadLibrary"
2190 nvenc_extralibs='$ldl'
2191 omx_deps="dlopen pthreads"
2192 omx_extralibs='$ldl'
2193 qsvdec_select="qsv"
2194 qsvenc_select="qsv"
2195 vaapi_encode_deps="vaapi"
2196
2197 hwupload_cuda_filter_deps="cuda"
2198 scale_npp_filter_deps="cuda libnpp"
2199
2200 h264_nvenc_encoder_deps="nvenc"
2201 h264_qsv_decoder_deps="libmfx"
2202 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2203 h264_qsv_encoder_deps="libmfx"
2204 h264_qsv_encoder_select="qsvenc"
2205 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2206 h264_vaapi_encoder_select="vaapi_encode golomb"
2207
2208 hevc_nvenc_encoder_deps="nvenc"
2209 hevc_qsv_decoder_deps="libmfx"
2210 hevc_qsv_encoder_deps="libmfx"
2211 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2212 hevc_qsv_encoder_select="qsvenc"
2213 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2214 hevc_vaapi_encoder_select="vaapi_encode golomb"
2215 mpeg2_qsv_decoder_deps="libmfx"
2216 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2217 mpeg2_qsv_encoder_deps="libmfx"
2218 mpeg2_qsv_encoder_select="qsvenc"
2219
2220 nvenc_h264_encoder_deps="nvenc"
2221 nvenc_hevc_encoder_deps="nvenc"
2222
2223 # parsers
2224 h264_parser_select="golomb h264dsp h264parse"
2225 hevc_parser_select="golomb"
2226 mpegvideo_parser_select="mpegvideo"
2227 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2228 vc1_parser_select="vc1dsp"
2229
2230 # bitstream_filters
2231 mjpeg2jpeg_bsf_select="jpegtables"
2232
2233 # external libraries
2234 libdcadec_decoder_deps="libdcadec"
2235 libfaac_encoder_deps="libfaac"
2236 libfaac_encoder_select="audio_frame_queue"
2237 libfdk_aac_decoder_deps="libfdk_aac"
2238 libfdk_aac_encoder_deps="libfdk_aac"
2239 libfdk_aac_encoder_select="audio_frame_queue"
2240 libgsm_decoder_deps="libgsm"
2241 libgsm_encoder_deps="libgsm"
2242 libgsm_ms_decoder_deps="libgsm"
2243 libgsm_ms_encoder_deps="libgsm"
2244 libilbc_decoder_deps="libilbc"
2245 libilbc_encoder_deps="libilbc"
2246 libkvazaar_encoder_deps="libkvazaar"
2247 libmp3lame_encoder_deps="libmp3lame"
2248 libmp3lame_encoder_select="audio_frame_queue"
2249 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2250 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2251 libopencore_amrnb_encoder_select="audio_frame_queue"
2252 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2253 libopenh264_decoder_deps="libopenh264"
2254 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2255 libopenh264_encoder_deps="libopenh264"
2256 libopenjpeg_decoder_deps="libopenjpeg"
2257 libopenjpeg_encoder_deps="libopenjpeg"
2258 libopus_decoder_deps="libopus"
2259 libopus_encoder_deps="libopus"
2260 libopus_encoder_select="audio_frame_queue"
2261 libschroedinger_decoder_deps="libschroedinger"
2262 libschroedinger_encoder_deps="libschroedinger"
2263 libspeex_decoder_deps="libspeex"
2264 libspeex_encoder_deps="libspeex"
2265 libspeex_encoder_select="audio_frame_queue"
2266 libtheora_encoder_deps="libtheora"
2267 libtwolame_encoder_deps="libtwolame"
2268 libvo_aacenc_encoder_deps="libvo_aacenc"
2269 libvo_aacenc_encoder_select="audio_frame_queue"
2270 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2271 libvorbis_encoder_deps="libvorbis"
2272 libvorbis_encoder_select="audio_frame_queue"
2273 libvpx_vp8_decoder_deps="libvpx"
2274 libvpx_vp8_encoder_deps="libvpx"
2275 libvpx_vp9_decoder_deps="libvpx"
2276 libvpx_vp9_encoder_deps="libvpx"
2277 libwavpack_encoder_deps="libwavpack"
2278 libwebp_encoder_deps="libwebp"
2279 libx262_encoder_deps="libx262"
2280 libx264_encoder_deps="libx264"
2281 libx265_encoder_deps="libx265"
2282 libxavs_encoder_deps="libxavs"
2283 libxvid_encoder_deps="libxvid"
2284
2285 # demuxers / muxers
2286 ac3_demuxer_select="ac3_parser"
2287 asf_demuxer_select="riffdec"
2288 asf_muxer_select="riffenc"
2289 asf_stream_muxer_select="asf_muxer"
2290 avi_demuxer_select="iso_media riffdec"
2291 avi_muxer_select="riffenc"
2292 avisynth_demuxer_deps="avisynth"
2293 avisynth_demuxer_select="riffdec"
2294 caf_demuxer_select="iso_media riffdec"
2295 dash_muxer_select="mp4_muxer"
2296 dirac_demuxer_select="dirac_parser"
2297 dv_demuxer_select="dvprofile"
2298 dv_muxer_select="dvprofile"
2299 dxa_demuxer_select="riffdec"
2300 eac3_demuxer_select="ac3_parser"
2301 f4v_muxer_select="mov_muxer"
2302 flac_demuxer_select="flac_parser"
2303 hds_muxer_select="flv_muxer"
2304 hls_muxer_select="mpegts_muxer"
2305 ipod_muxer_select="mov_muxer"
2306 ismv_muxer_select="mov_muxer"
2307 matroska_audio_muxer_select="matroska_muxer"
2308 matroska_demuxer_select="iso_media riffdec"
2309 matroska_demuxer_suggest="bzlib lzo zlib"
2310 matroska_muxer_select="iso_media riffenc"
2311 mmf_muxer_select="riffenc"
2312 mov_demuxer_select="iso_media riffdec"
2313 mov_demuxer_suggest="zlib"
2314 mov_muxer_select="iso_media riffenc rtpenc_chain"
2315 mp3_demuxer_select="mpegaudio_parser"
2316 mp4_muxer_select="mov_muxer"
2317 mpegts_demuxer_select="iso_media"
2318 mpegts_muxer_select="adts_muxer latm_muxer"
2319 mpegtsraw_demuxer_select="mpegts_demuxer"
2320 mxf_d10_muxer_select="mxf_muxer"
2321 nut_muxer_select="riffenc"
2322 nuv_demuxer_select="riffdec"
2323 oga_muxer_select="ogg_muxer"
2324 ogg_demuxer_select="dirac_parse"
2325 opus_muxer_select="ogg_muxer"
2326 psp_muxer_select="mov_muxer"
2327 rtp_demuxer_select="sdp_demuxer"
2328 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2329 rtsp_demuxer_select="http_protocol rtpdec"
2330 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2331 sap_demuxer_select="sdp_demuxer"
2332 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2333 sdp_demuxer_select="rtpdec"
2334 smoothstreaming_muxer_select="ismv_muxer"
2335 spdif_muxer_select="aac_parser"
2336 spx_muxer_select="ogg_muxer"
2337 swf_demuxer_suggest="zlib"
2338 tak_demuxer_select="tak_parser"
2339 tg2_muxer_select="mov_muxer"
2340 tgp_muxer_select="mov_muxer"
2341 w64_demuxer_select="wav_demuxer"
2342 wav_demuxer_select="riffdec"
2343 wav_muxer_select="riffenc"
2344 webm_muxer_select="iso_media riffenc"
2345 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2346 wtv_demuxer_select="mpegts_demuxer riffdec"
2347 xmv_demuxer_select="riffdec"
2348 xwma_demuxer_select="riffdec"
2349
2350 # indevs / outdevs
2351 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2352 alsa_outdev_deps="alsa_asoundlib_h"
2353 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2354 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2355 dv1394_indev_deps="dv1394"
2356 dv1394_indev_select="dv_demuxer"
2357 fbdev_indev_deps="linux_fb_h"
2358 jack_indev_deps="jack_jack_h"
2359 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2360 libcdio_indev_deps="libcdio"
2361 libdc1394_indev_deps="libdc1394"
2362 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2363 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2364 pulse_indev_deps="libpulse"
2365 sndio_indev_deps="sndio_h"
2366 sndio_outdev_deps="sndio_h"
2367 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2368 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2369 vfwcap_indev_extralibs="-lavicap32"
2370 x11grab_xcb_indev_deps="libxcb"
2371
2372 # protocols
2373 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2374 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2375 ffrtmpcrypt_protocol_select="tcp_protocol"
2376 ffrtmphttp_protocol_deps="!librtmp_protocol"
2377 ffrtmphttp_protocol_select="http_protocol"
2378 gopher_protocol_select="network"
2379 http_protocol_select="tcp_protocol"
2380 httpproxy_protocol_select="tcp_protocol"
2381 https_protocol_select="tls_protocol"
2382 icecast_protocol_select="http_protocol"
2383 librtmp_protocol_deps="librtmp"
2384 librtmpe_protocol_deps="librtmp"
2385 librtmps_protocol_deps="librtmp"
2386 librtmpt_protocol_deps="librtmp"
2387 librtmpte_protocol_deps="librtmp"
2388 mmsh_protocol_select="http_protocol"
2389 mmst_protocol_select="network"
2390 rtmp_protocol_deps="!librtmp_protocol"
2391 rtmp_protocol_select="tcp_protocol"
2392 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2393 rtmps_protocol_deps="!librtmp_protocol"
2394 rtmps_protocol_select="tls_protocol"
2395 rtmpt_protocol_select="ffrtmphttp_protocol"
2396 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2397 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2398 rtp_protocol_select="udp_protocol"
2399 sctp_protocol_deps="struct_sctp_event_subscribe"
2400 sctp_protocol_select="network"
2401 srtp_protocol_select="rtp_protocol srtp"
2402 tcp_protocol_select="network"
2403 tls_gnutls_protocol_deps="gnutls"
2404 tls_gnutls_protocol_select="tcp_protocol"
2405 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2406 tls_openssl_protocol_select="tcp_protocol"
2407 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2408 udp_protocol_select="network"
2409 unix_protocol_deps="sys_un_h"
2410 unix_protocol_select="network"
2411
2412 # filters
2413 blackframe_filter_deps="gpl"
2414 boxblur_filter_deps="gpl"
2415 bs2b_filter_deps="libbs2b"
2416 cropdetect_filter_deps="gpl"
2417 deinterlace_qsv_filter_deps="libmfx"
2418 delogo_filter_deps="gpl"
2419 drawtext_filter_deps="libfreetype"
2420 frei0r_filter_deps="frei0r dlopen"
2421 frei0r_filter_extralibs='$ldl'
2422 frei0r_src_filter_deps="frei0r dlopen"
2423 frei0r_src_filter_extralibs='$ldl'
2424 hqdn3d_filter_deps="gpl"
2425 interlace_filter_deps="gpl"
2426 ocv_filter_deps="libopencv"
2427 resample_filter_deps="avresample"
2428 scale_filter_deps="swscale"
2429 scale_qsv_filter_deps="libmfx"
2430 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2431
2432 # examples
2433 avcodec_example_deps="avcodec avutil"
2434 filter_audio_example_deps="avfilter avutil"
2435 metadata_example_deps="avformat avutil"
2436 output_example_deps="avcodec avformat avutil swscale"
2437 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2438 transcode_aac_example_deps="avcodec avformat avresample"
2439
2440 # libraries, in linking order
2441 avcodec_deps="avutil"
2442 avdevice_deps="avformat avcodec avutil"
2443 avfilter_deps="avutil"
2444 avformat_deps="avcodec avutil"
2445 avresample_deps="avutil"
2446 swscale_deps="avutil"
2447
2448 # programs
2449 avconv_deps="avcodec avfilter avformat avresample swscale"
2450 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2451 fps_filter null_filter resample_filter scale_filter
2452 trim_filter"
2453 avplay_deps="avcodec avfilter avformat avresample sdl"
2454 avplay_libs='$sdl_libs'
2455 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2456 avprobe_deps="avcodec avformat"
2457
2458 # documentation
2459 pod2man_deps="doc"
2460 texi2html_deps="doc"
2461
2462 # default parameters
2463
2464 logfile="config.log"
2465
2466 # installation paths
2467 prefix_default="/usr/local"
2468 bindir_default='${prefix}/bin'
2469 datadir_default='${prefix}/share/avconv'
2470 docdir_default='${prefix}/share/doc/libav'
2471 incdir_default='${prefix}/include'
2472 libdir_default='${prefix}/lib'
2473 mandir_default='${prefix}/share/man'
2474 shlibdir_default="$libdir_default"
2475
2476 # toolchain
2477 ar_default="ar"
2478 cc_default="gcc"
2479 host_cc_default="gcc"
2480 cp_f="cp -f"
2481 ln_s="ln -s -f"
2482 nm_default="nm -g"
2483 objformat="elf"
2484 pkg_config_default=pkg-config
2485 ranlib="ranlib"
2486 strip="strip"
2487 version_script='--version-script'
2488 yasmexe="yasm"
2489
2490 # machine
2491 arch_default=$(uname -m)
2492 cpu="generic"
2493 intrinsics="none"
2494
2495 # OS
2496 target_os_default=$(tolower $(uname -s))
2497 host_os=$target_os_default
2498
2499 # configurable options
2500 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2501
2502 enable asm
2503 enable debug
2504 enable doc
2505 enable faan faandct faanidct
2506 enable optimizations
2507 enable safe_bitstream_reader
2508 enable static
2509 enable swscale_alpha
2510 enable valgrind_backtrace
2511
2512 # By default, enable only those hwaccels that have no external dependencies.
2513 enable d3d11va dxva2 vda vdpau
2514
2515 # build settings
2516 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2517 LIBPREF="lib"
2518 LIBSUF=".a"
2519 FULLNAME='$(NAME)$(BUILDSUF)'
2520 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2521 SLIBPREF="lib"
2522 SLIBSUF=".so"
2523 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2524 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2525 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2526 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2527 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2528 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2529 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2530
2531 asflags_filter=echo
2532 cflags_filter=echo
2533 ldflags_filter=echo
2534
2535 AS_C='-c'
2536 AS_O='-o $@'
2537 CC_C='-c'
2538 CC_E='-E -o $@'
2539 CC_O='-o $@'
2540 OBJCC_C='-c'
2541 OBJCC_E='-E -o $@'
2542 OBJCC_O='-o $@'
2543 LD_O='-o $@'
2544 LD_LIB='-l%'
2545 LD_PATH='-L'
2546 HOSTCC_C='-c'
2547 HOSTCC_E='-E -o $@'
2548 HOSTCC_O='-o $@'
2549 HOSTLD_O='-o $@'
2550
2551 host_libs='-lm'
2552 host_cflags_filter=echo
2553 host_ldflags_filter=echo
2554
2555 target_path='$(CURDIR)'
2556
2557 # since the object filename is not given with the -MM flag, the compiler
2558 # is only able to print the basename, and we must add the path ourselves
2559 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2560 DEPFLAGS='-MM'
2561
2562 # find source path
2563 if test -f configure; then
2564 source_path=.
2565 else
2566 source_path=$(cd $(dirname "$0"); pwd)
2567 echo "$source_path" | grep -q '[[:blank:]]' &&
2568 die "Out of tree builds are impossible with whitespace in source path."
2569 test -e "$source_path/config.h" &&
2570 die "Out of tree builds are impossible with config.h in source dir."
2571 fi
2572
2573 for v in "$@"; do
2574 r=${v#*=}
2575 l=${v%"$r"}
2576 r=$(sh_quote "$r")
2577 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2578 done
2579
2580 find_things(){
2581 thing=$1
2582 pattern=$2
2583 file=$source_path/$3
2584 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2585 }
2586
2587 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2588 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2589 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2590 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2591 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2592 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2593 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2594 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2595 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2596
2597 find_things_extern(){
2598 thing=$1
2599 pattern=$2
2600 file=$source_path/$3
2601 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2602 }
2603
2604 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2605 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2606
2607 ALL_COMPONENTS="
2608 $BSF_LIST
2609 $DECODER_LIST
2610 $DEMUXER_LIST
2611 $ENCODER_LIST
2612 $FILTER_LIST
2613 $HWACCEL_LIST
2614 $INDEV_LIST
2615 $MUXER_LIST
2616 $OUTDEV_LIST
2617 $PARSER_LIST
2618 $PROTOCOL_LIST
2619 "
2620
2621 for n in $COMPONENT_LIST; do
2622 v=$(toupper ${n%s})_LIST
2623 eval enable \$$v
2624 eval ${n}_if_any="\$$v"
2625 done
2626
2627 enable $ARCH_EXT_LIST
2628
2629 die_unknown(){
2630 echo "Unknown option \"$1\"."
2631 echo "See $0 --help for available options."
2632 exit 1
2633 }
2634
2635 print_3_columns() {
2636 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2637 }
2638
2639 show_list() {
2640 suffix=_$1
2641 shift
2642 echo $* | sed s/$suffix//g | print_3_columns
2643 exit 0
2644 }
2645
2646 rand_list(){
2647 IFS=', '
2648 set -- $*
2649 unset IFS
2650 for thing; do
2651 comp=${thing%:*}
2652 prob=${thing#$comp}
2653 prob=${prob#:}
2654 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2655 echo "prob ${prob:-0.5}"
2656 printf '%s\n' $comp
2657 done
2658 }
2659
2660 do_random(){
2661 action=$1
2662 shift
2663 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2664 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2665 }
2666
2667 for opt do
2668 optval="${opt#*=}"
2669 case "$opt" in
2670 --extra-ldflags=*)
2671 add_ldflags $optval
2672 ;;
2673 --extra-ldexeflags=*)
2674 add_ldexeflags $optval
2675 ;;
2676 --extra-libs=*)
2677 add_extralibs $optval
2678 ;;
2679 --disable-devices)
2680 disable $INDEV_LIST $OUTDEV_LIST
2681 ;;
2682 --enable-debug=*)
2683 debuglevel="$optval"
2684 ;;
2685 --disable-programs)
2686 disable $PROGRAM_LIST
2687 ;;
2688 --disable-everything)
2689 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2690 ;;
2691 --disable-all)
2692 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2693 disable $LIBRARY_LIST $PROGRAM_LIST doc
2694 ;;
2695 --enable-random|--disable-random)
2696 action=${opt%%-random}
2697 do_random ${action#--} $COMPONENT_LIST
2698 ;;
2699 --enable-random=*|--disable-random=*)
2700 action=${opt%%-random=*}
2701 do_random ${action#--} $optval
2702 ;;
2703 --enable-*=*|--disable-*=*)
2704 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2705 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2706 eval list=\$$(toupper $thing)_LIST
2707 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2708 $action $(filter "$name" $list)
2709 ;;
2710 --enable-avserver|--disable-avserver*)
2711 warn "avserver has been removed, the ${opt} option is only"\
2712 "provided for compatibility and will be removed in the future"
2713 ;;
2714 --enable-?*|--disable-?*)
2715 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2716 if is_in $option $COMPONENT_LIST; then
2717 test $action = disable && action=unset
2718 eval $action \$$(toupper ${option%s})_LIST
2719 elif is_in $option $CMDLINE_SELECT; then
2720 $action $option
2721 else
2722 die_unknown $opt
2723 fi
2724 ;;
2725 --list-*)
2726 NAME="${opt#--list-}"
2727 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2728 NAME=${NAME%s}
2729 eval show_list $NAME \$$(toupper $NAME)_LIST
2730 ;;
2731 --help|-h) show_help
2732 ;;
2733 *)
2734 optname="${opt%%=*}"
2735 optname="${optname#--}"
2736 optname=$(echo "$optname" | sed 's/-/_/g')
2737 if is_in $optname $CMDLINE_SET; then
2738 eval $optname='$optval'
2739 elif is_in $optname $CMDLINE_APPEND; then
2740 append $optname "$optval"
2741 else
2742 die_unknown $opt
2743 fi
2744 ;;
2745 esac
2746 done
2747
2748 for e in $env; do
2749 eval "export $e"
2750 done
2751
2752 disabled logging && logfile=/dev/null
2753
2754 # Disable all the library-specific components if the library itself
2755 # is disabled, see AVCODEC_LIST and following _LIST variables.
2756
2757 disable_components(){
2758 disabled ${1} && disable $(
2759 eval components="\$$(toupper ${1})_COMPONENTS"
2760 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2761 )
2762 }
2763
2764 map 'disable_components $v' $LIBRARY_LIST
2765
2766 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2767 set >> $logfile
2768
2769 case "$toolchain" in
2770 *-asan)
2771 cc_default="${toolchain%-asan}"
2772 add_cflags -fsanitize=address
2773 add_ldflags -fsanitize=address
2774 ;;
2775 *-msan)
2776 cc_default="${toolchain%-msan}"
2777 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2778 add_ldflags -fsanitize=memory
2779 ;;
2780 *-tsan)
2781 cc_default="${toolchain%-tsan}"
2782 add_cflags -fsanitize=thread -pie
2783 add_ldflags -fsanitize=thread -pie
2784 case "$toolchain" in
2785 gcc-tsan)
2786 add_cflags -fPIC
2787 add_ldflags -fPIC
2788 ;;
2789 esac
2790 ;;
2791 *-usan)
2792 cc_default="${toolchain%-usan}"
2793 add_cflags -fsanitize=undefined
2794 add_ldflags -fsanitize=undefined
2795 case "$toolchain" in
2796 clang-usan)
2797 add_cflags -O1
2798 ;;
2799 esac
2800 ;;
2801 valgrind-*)
2802 target_exec_default="valgrind"
2803 case "$toolchain" in
2804 valgrind-massif)
2805 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2806 ;;
2807 valgrind-memcheck)
2808 target_exec_args="--track-origins=yes --leak-check=full"
2809 ;;
2810 esac
2811 ;;
2812 msvc)
2813 # Check whether the current MSVC version needs the C99 converter.
2814 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2815 # support enough of C99 to build libav. Default to the new
2816 # behaviour if the regexp was unable to match anything, since this
2817 # successfully parses the version number of existing supported
2818 # versions that require the converter (MSVC 2010 and 2012).
2819 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2820 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2821 cc_default="cl"
2822 else
2823 cc_default="c99wrap cl"
2824 fi
2825 ld_default="$source_path/compat/windows/mslink"
2826 nm_default="dumpbin -symbols"
2827 ar_default="lib"
2828 case "$arch" in
2829 arm*)
2830 as_default="armasm"
2831 ;;
2832 esac
2833 target_os_default="win32"
2834 # Use a relative path for TMPDIR. This makes sure all the
2835 # ffconf temp files are written with a relative path, avoiding
2836 # issues with msys/win32 path conversion for MSVC parameters
2837 # such as -Fo<file> or -out:<file>.
2838 TMPDIR=.
2839 ;;
2840 icl)
2841 cc_default="icl"
2842 ld_default="xilink"
2843 nm_default="dumpbin -symbols"
2844 ar_default="xilib"
2845 target_os_default="win32"
2846 TMPDIR=.
2847 ;;
2848 gcov)
2849 add_cflags -fprofile-arcs -ftest-coverage
2850 add_ldflags -fprofile-arcs -ftest-coverage
2851 ;;
2852 llvm-cov)
2853 add_cflags -fprofile-arcs -ftest-coverage
2854 add_ldflags --coverage
2855 ;;
2856 hardened)
2857 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2858 add_cflags -fno-strict-overflow -fstack-protector-all
2859 add_ldflags -Wl,-z,relro -Wl,-z,now
2860 ;;
2861 ?*)
2862 die "Unknown toolchain $toolchain"
2863 ;;
2864 esac
2865
2866 test -n "$cross_prefix" && enable cross_compile
2867
2868 if enabled cross_compile; then
2869 test -n "$arch" && test -n "$target_os" ||
2870 die "Must specify target arch and OS when cross-compiling"
2871 fi
2872
2873 ar_default="${cross_prefix}${ar_default}"
2874 cc_default="${cross_prefix}${cc_default}"
2875 occ_default="${cross_prefix}${occ_default}"
2876 nm_default="${cross_prefix}${nm_default}"
2877 pkg_config_default="${cross_prefix}${pkg_config_default}"
2878 ranlib="${cross_prefix}${ranlib}"
2879 strip="${cross_prefix}${strip}"
2880
2881 sysinclude_default="${sysroot}/usr/include"
2882
2883 set_default arch cc pkg_config sysinclude target_exec target_os
2884 enabled cross_compile || host_cc_default=$cc
2885 set_default host_cc
2886
2887 if ! $pkg_config --version >/dev/null 2>&1; then
2888 warn "$pkg_config not found, library detection may fail."
2889 pkg_config=false
2890 fi
2891
2892 exesuf() {
2893 case $1 in
2894 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2895 esac
2896 }
2897
2898 EXESUF=$(exesuf $target_os)
2899 HOSTEXESUF=$(exesuf $host_os)
2900
2901 # set temporary file name
2902 : ${TMPDIR:=$TEMPDIR}
2903 : ${TMPDIR:=$TMP}
2904 : ${TMPDIR:=/tmp}
2905
2906 if ! check_cmd mktemp -u XXXXXX; then
2907 # simple replacement for missing mktemp
2908 # NOT SAFE FOR GENERAL USE
2909 mktemp(){
2910 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2911 }
2912 fi
2913
2914 tmpfile(){
2915 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2916 (set -C; exec > $tmp) 2>/dev/null ||
2917 die "Unable to create temporary file in $TMPDIR."
2918 append TMPFILES $tmp
2919 eval $1=$tmp
2920 }
2921
2922 trap 'rm -f -- $TMPFILES' EXIT
2923
2924 tmpfile TMPASM .asm
2925 tmpfile TMPC .c
2926 tmpfile TMPE $EXESUF
2927 tmpfile TMPH .h
2928 tmpfile TMPO .o
2929 tmpfile TMPS .S
2930 tmpfile TMPSH .sh
2931 tmpfile TMPV .ver
2932
2933 unset -f mktemp
2934
2935 chmod +x $TMPE
2936
2937 # make sure we can execute files in $TMPDIR
2938 cat > $TMPSH 2>> $logfile <<EOF
2939 #! /bin/sh
2940 EOF
2941 chmod +x $TMPSH >> $logfile 2>&1
2942 if ! $TMPSH >> $logfile 2>&1; then
2943 cat <<EOF
2944 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2945 variable to another directory and make sure that it is not mounted noexec.
2946 EOF
2947 die "Sanity test failed."
2948 fi
2949
2950 armasm_flags(){
2951 for flag; do
2952 case $flag in
2953 # Filter out MSVC cl.exe options from cflags that shouldn't
2954 # be passed to gas-preprocessor
2955 -M[TD]*) ;;
2956 *) echo $flag ;;
2957 esac
2958 done
2959 }
2960
2961 ccc_flags(){
2962 for flag; do
2963 case $flag in
2964 -std=c99) echo -c99 ;;
2965 -mcpu=*) echo -arch ${flag#*=} ;;
2966 -mieee) echo -ieee ;;
2967 -O*|-fast) echo $flag ;;
2968 -fno-math-errno) echo -assume nomath_errno ;;
2969 -g) echo -g3 ;;
2970 -Wall) echo -msg_enable level2 ;;
2971 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2972 -Wl,*) echo $flag ;;
2973 -f*|-W*) ;;
2974 *) echo $flag ;;
2975 esac
2976 done
2977 }
2978
2979 cparser_flags(){
2980 for flag; do
2981 case $flag in
2982 -Wno-switch) echo -Wno-switch-enum ;;
2983 -Wno-format-zero-length) ;;
2984 -Wdisabled-optimization) ;;
2985 -Wno-pointer-sign) echo -Wno-other ;;
2986 *) echo $flag ;;
2987 esac
2988 done
2989 }
2990
2991 msvc_common_flags(){
2992 for flag; do
2993 case $flag in
2994 # In addition to specifying certain flags under the compiler
2995 # specific filters, they must be specified here as well or else the
2996 # generic catch all at the bottom will print the original flag.
2997 -Wall) ;;
2998 -std=c99) ;;
2999 # Common flags
3000 -fomit-frame-pointer) ;;
3001 -g) echo -Z7 ;;
3002 -fno-math-errno) ;;
3003 -fno-common) ;;
3004 -fno-signed-zeros) ;;
3005 -fPIC) ;;
3006 -mthumb) ;;
3007 -march=*) ;;
3008 -lz) echo zlib.lib ;;
3009 -lavifil32) echo vfw32.lib ;;
3010 -lavicap32) echo vfw32.lib user32.lib ;;
3011 -lx264) echo libx264.lib ;;
3012 -l*) echo ${flag#-l}.lib ;;
3013 -L*) echo -libpath:${flag#-L} ;;
3014 *) echo $flag ;;
3015 esac
3016 done
3017 }
3018
3019 msvc_flags(){
3020 msvc_common_flags "$@"
3021 for flag; do
3022 case $flag in
3023 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3024 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3025 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3026 -wd4273 -wd4554 -wd4701 ;;
3027 esac
3028 done
3029 }
3030
3031 icl_flags(){
3032 msvc_common_flags "$@"
3033 for flag; do
3034 case $flag in
3035 # Despite what Intel's documentation says -Wall, which is supported
3036 # on Windows, does enable remarks so disable them here.
3037 -Wall) echo $flag -Qdiag-disable:remark ;;
3038 -std=c99) echo -Qstd=c99 ;;
3039 esac
3040 done
3041 }
3042
3043 pgi_flags(){
3044 for flag; do
3045 case $flag in
3046 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3047 -fomit-frame-pointer) echo -Mnoframe ;;
3048 -g) echo -gopt ;;
3049 *) echo $flag ;;
3050 esac
3051 done
3052 }
3053
3054 suncc_flags(){
3055 for flag; do
3056 case $flag in
3057 -march=*|-mcpu=*)
3058 case "${flag#*=}" in
3059 native) echo -xtarget=native ;;
3060 v9|niagara) echo -xarch=sparc ;;
3061 ultrasparc) echo -xarch=sparcvis ;;
3062 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3063 i586|pentium) echo -xchip=pentium ;;
3064 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3065 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3066 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3067 pentium4*) echo -xtarget=pentium4 ;;
3068 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3069 *-sse3) echo -xarch=sse3 ;;
3070 core2) echo -xarch=ssse3 -xchip=core2 ;;
3071 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3072 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3073 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3074 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3075 k8|opteron|athlon64|athlon-fx)
3076 echo -xarch=sse2a ;;
3077 athlon*) echo -xarch=pentium_proa ;;
3078 esac
3079 ;;
3080 -std=c99) echo -xc99 ;;
3081 -fomit-frame-pointer) echo -xregs=frameptr ;;
3082 -fPIC) echo -KPIC -xcode=pic32 ;;
3083 -W*,*) echo $flag ;;
3084 -f*-*|-W*|-mimpure-text) ;;
3085 -shared) echo -G ;;
3086 *) echo $flag ;;
3087 esac
3088 done
3089 }
3090
3091 tms470_flags(){
3092 for flag; do
3093 case $flag in
3094 -march=*|-mcpu=*)
3095 case "${flag#*=}" in
3096 armv7-a|cortex-a*) echo -mv=7a8 ;;
3097 armv7-r|cortex-r*) echo -mv=7r4 ;;
3098 armv7-m|cortex-m*) echo -mv=7m3 ;;
3099 armv6*|arm11*) echo -mv=6 ;;
3100 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3101 echo -mv=5e ;;
3102 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3103 esac
3104 ;;
3105 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3106 -mfpu=vfp) echo --float_support=vfpv2 ;;
3107 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3108 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3109 -msoft-float) echo --float_support=vfplib ;;
3110 -O[0-3]|-mf=*) echo $flag ;;
3111 -g) echo -g -mn ;;
3112 -pds=*) echo $flag ;;
3113 -D*|-I*) echo $flag ;;
3114 --gcc|--abi=*) echo $flag ;;
3115 -me) echo $flag ;;
3116 esac
3117 done
3118 }
3119
3120 probe_cc(){
3121 pfx=$1
3122 _cc=$2
3123
3124 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3125 unset _ld_o _ldflags _ld_lib _ld_path
3126 unset _depflags _DEPCMD _DEPFLAGS
3127 _flags_filter=echo
3128
3129 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3130 _type=llvm_gcc
3131 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3132 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3133 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3134 _cflags_speed='-O3'
3135 _cflags_size='-Os'
3136 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3137 _type=gcc
3138 gcc_version=$($_cc --version | head -n1)
3139 gcc_basever=$($_cc -dumpversion)
3140 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3141 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3142 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3143 if ! $_cc -dumpversion | grep -q '^2\.'; then
3144 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3145 fi
3146 _cflags_speed='-O3'
3147 _cflags_size='-Os'
3148 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3149 _type=icc
3150 _ident=$($_cc --version | head -n1)
3151 _depflags='-MMD'
3152 _cflags_speed='-O3'
3153 _cflags_size='-Os'
3154 _cflags_noopt='-O1'
3155 elif $_cc -v 2>&1 | grep -q xlc; then
3156 _type=xlc
3157 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3158 _cflags_speed='-O5'
3159 _cflags_size='-O5 -qcompact'
3160 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3161 _type=ccc
3162 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3163 _DEPFLAGS='-M'
3164 _cflags_speed='-fast'
3165 _cflags_size='-O1'
3166 _flags_filter=ccc_flags
3167 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3168 test -d "$sysroot" || die "No valid sysroot specified."
3169 _type=armcc
3170 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3171 armcc_conf="$PWD/armcc.conf"
3172 $_cc --arm_linux_configure \
3173 --arm_linux_config_file="$armcc_conf" \
3174 --configure_sysroot="$sysroot" \
3175 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3176 die "Error creating armcc configuration file."
3177 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3178 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3179 as_default="${cross_prefix}gcc"
3180 _depflags='-MMD'
3181 _cflags_speed='-O3'
3182 _cflags_size='-Os'
3183 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3184 _type=tms470
3185 _ident=$($_cc -version | head -n1 | tr -s ' ')
3186 _flags='--gcc --abi=eabi -me'
3187 _cc_e='-ppl -fe=$@'
3188 _cc_o='-fe=$@'
3189 _depflags='-ppa -ppd=$(@:.o=.d)'
3190 _cflags_speed='-O3 -mf=5'
3191 _cflags_size='-O3 -mf=2'
3192 _flags_filter=tms470_flags
3193 elif $_cc -v 2>&1 | grep -q clang; then
3194 _type=clang
3195 _ident=$($_cc --version 2>/dev/null | head -n1)
3196 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3197 _cflags_speed='-O3'
3198 _cflags_size='-Os'
3199 elif $_cc -V 2>&1 | grep -q Sun; then
3200 _type=suncc
3201 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3202 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3203 _DEPFLAGS='-xM1 -xc99'
3204 _ldflags='-std=c99'
3205 _cflags_speed='-O5'
3206 _cflags_size='-O5 -xspace'
3207 _flags_filter=suncc_flags
3208 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3209 _type=pathscale
3210 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3211 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3212 _cflags_speed='-O2'
3213 _cflags_size='-Os'
3214 _flags_filter='filter_out -Wdisabled-optimization'
3215 elif $_cc -v 2>&1 | grep -q Open64; then
3216 _type=open64
3217 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3218 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3219 _cflags_speed='-O2'
3220 _cflags_size='-Os'
3221 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3222 elif $_cc -V 2>&1 | grep -q Portland; then
3223 _type=pgi
3224 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3225 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3226 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3227 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3228 _cflags_noopt="-O1"
3229 _flags_filter=pgi_flags
3230 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3231 _type=armasm
3232 _ident=$($_cc | head -n1)
3233 # 4509: "This form of conditional instruction is deprecated"
3234 _flags="-nologo -ignore 4509"
3235 _flags_filter=armasm_flags
3236 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3237 _type=msvc
3238 _ident=$($_cc 2>&1 | head -n1)
3239 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3240 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3241 _cflags_speed="-O2"
3242 _cflags_size="-O1"
3243 if $_cc -nologo- 2>&1 | grep -q Linker; then
3244 _ld_o='-out:$@'
3245 else
3246 _ld_o='-Fe$@'
3247 fi
3248 _cc_o='-Fo$@'
3249 _cc_e='-P -Fi$@'
3250 _flags_filter=msvc_flags
3251 _ld_lib='lib%.a'
3252 _ld_path='-libpath:'
3253 _flags='-nologo'
3254 elif $_cc 2>&1 | grep -q Intel; then
3255 _type=icl
3256 _ident=$($_cc 2>&1 | head -n1)
3257 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3258 # Not only is O3 broken on 13.x+ but it is slower on all previous
3259 # versions (tested) as well.
3260 _cflags_speed="-O2"
3261 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3262 if $_cc 2>&1 | grep -q Linker; then
3263 _ld_o='-out:$@'
3264 else
3265 _ld_o='-Fe$@'
3266 fi
3267 _cc_o='-Fo$@'
3268 _cc_e='-P'
3269 _flags_filter=icl_flags
3270 _ld_lib='lib%.a'
3271 _ld_path='-libpath:'
3272 # -Qdiag-error to make icl error when seeing certain unknown arguments
3273 _flags='-nologo -Qdiag-error:4044,10157'
3274 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3275 # with MSVC which enables it by default.
3276 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3277 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3278 # lld can emulate multiple different linkers; in ms link.exe mode,
3279 # the -? parameter gives the help output which contains an identifyable
3280 # string, while it gives an error in other modes.
3281 _type=lld-link
3282 # The link.exe mode doesn't have a switch for getting the version,
3283 # but we can force it back to gnu mode and get the version from there.
3284 _ident=$($_cc -flavor gnu --version)
3285 _ld_o='-out:$@'
3286 _flags_filter=msvc_flags
3287 _ld_lib='lib%.a'
3288 _ld_path='-libpath:'
3289 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3290 _type=cparser
3291 _ident=$($_cc --version | head -n1)
3292 _depflags='-MMD'
3293 _cflags_speed='-O4'
3294 _cflags_size='-O2'
3295 _flags_filter=cparser_flags
3296 fi
3297
3298 eval ${pfx}_type=\$_type
3299 eval ${pfx}_ident=\$_ident
3300 }
3301
3302 set_ccvars(){
3303 eval ${1}_C=\${_cc_c-\${${1}_C}}
3304 eval ${1}_E=\${_cc_e-\${${1}_E}}
3305 eval ${1}_O=\${_cc_o-\${${1}_O}}
3306
3307 if [ -n "$_depflags" ]; then
3308 eval ${1}_DEPFLAGS=\$_depflags
3309 else
3310 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3311 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3312 eval DEP${1}FLAGS=\$_flags
3313 fi
3314 }
3315
3316 probe_cc cc "$cc"
3317 cflags_filter=$_flags_filter
3318 cflags_speed=$_cflags_speed
3319 cflags_size=$_cflags_size
3320 cflags_noopt=$_cflags_noopt
3321 add_cflags $_flags $_cflags
3322 cc_ldflags=$_ldflags
3323 set_ccvars CC
3324
3325 probe_cc hostcc "$host_cc"
3326 host_cflags_filter=$_flags_filter
3327 add_host_cflags $_flags $_cflags
3328 set_ccvars HOSTCC
3329
3330 test -n "$cc_type" && enable $cc_type ||
3331 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3332
3333 : ${as_default:=$cc}
3334 : ${objcc_default:=$cc}
3335 : ${dep_cc_default:=$cc}
3336 : ${ld_default:=$cc}
3337 : ${host_ld_default:=$host_cc}
3338 set_default ar as objcc dep_cc ld host_ld
3339
3340 probe_cc as "$as"
3341 asflags_filter=$_flags_filter
3342 add_asflags $_flags $_cflags
3343 set_ccvars AS
3344
3345 probe_cc objcc "$objcc"
3346 objcflags_filter=$_flags_filter
3347 add_objcflags $_flags $_cflags
3348 set_ccvars OBJC
3349
3350 probe_cc ld "$ld"
3351 ldflags_filter=$_flags_filter
3352 add_ldflags $_flags $_ldflags
3353 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3354 LD_O=${_ld_o-$LD_O}
3355 LD_LIB=${_ld_lib-$LD_LIB}
3356 LD_PATH=${_ld_path-$LD_PATH}
3357
3358 probe_cc hostld "$host_ld"
3359 host_ldflags_filter=$_flags_filter
3360 add_host_ldflags $_flags $_ldflags
3361 HOSTLD_O=${_ld_o-$HOSTLD_O}
3362
3363 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3364 probe_cc depcc "$dep_cc"
3365 CCDEP=${_DEPCMD:-$DEPCMD}
3366 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3367 DEPCCFLAGS=$_flags
3368 fi
3369
3370 if $ar 2>&1 | grep -q Microsoft; then
3371 arflags="-nologo"
3372 ar_o='-out:$@'
3373 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3374 arflags="rq"
3375 ar_o='$@'
3376 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3377 arflags='-Xany -r -c'
3378 ar_o='$@'
3379 else
3380 arflags="rc"
3381 ar_o='$@'
3382 fi
3383
3384 add_cflags $extra_cflags
3385 add_objcflags $extra_objcflags
3386 add_asflags $extra_cflags
3387
3388 if test -n "$sysroot"; then
3389 case "$cc_type" in
3390 gcc|llvm_gcc|clang)
3391 add_cppflags --sysroot="$sysroot"
3392 add_ldflags --sysroot="$sysroot"
3393 ;;
3394 tms470)
3395 add_cppflags -I"$sysinclude"
3396 add_ldflags --sysroot="$sysroot"
3397 ;;
3398 esac
3399 fi
3400
3401 if test "$cpu" = host; then
3402 enabled cross_compile &&
3403 die "--cpu=host makes no sense when cross-compiling."
3404
3405 case "$cc_type" in
3406 gcc|llvm_gcc)
3407 check_native(){
3408 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3409 sed -n "/cc1.*$1=/{
3410 s/.*$1=\\([^ ]*\\).*/\\1/
3411 p
3412 q
3413 }" $TMPE
3414 }
3415 cpu=$(check_native -march || check_native -mcpu)
3416 ;;
3417 esac
3418
3419 test "${cpu:-host}" = host &&
3420 die "--cpu=host not supported with compiler $cc"
3421 fi
3422
3423 # Deal with common $arch aliases
3424 case "$arch" in
3425 aarch64|arm64)
3426 arch="aarch64"
3427 ;;
3428 arm*)
3429 arch="arm"
3430 ;;
3431 mips*|IP*)
3432 case "$arch" in
3433 *el)
3434 add_cppflags -EL
3435 add_ldflags -EL
3436 ;;
3437 *eb)
3438 add_cppflags -EB
3439 add_ldflags -EB
3440 ;;
3441 esac
3442 arch="mips"
3443 ;;
3444 parisc*|hppa*)
3445 arch="parisc"
3446 ;;
3447 "Power Macintosh"|ppc*|powerpc*)
3448 arch="ppc"
3449 ;;
3450 s390|s390x)
3451 arch="s390"
3452 ;;
3453 sh4|sh)
3454 arch="sh4"
3455 ;;
3456 sun4u|sparc*)
3457 arch="sparc"
3458 ;;
3459 tilegx|tile-gx)
3460 arch="tilegx"
3461 ;;
3462 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3463 arch="x86"
3464 ;;
3465 esac
3466
3467 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3468 enable $arch
3469
3470 # Add processor-specific flags
3471 if enabled aarch64; then
3472
3473 case $cpu in
3474 armv*)
3475 cpuflags="-march=$cpu"
3476 ;;
3477 *)
3478 cpuflags="-mcpu=$cpu"
3479 ;;
3480 esac
3481
3482 elif enabled alpha; then
3483
3484 cpuflags="-mcpu=$cpu"
3485
3486 elif enabled arm; then
3487
3488 check_arm_arch() {
3489 check_cpp_condition stddef.h \
3490 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3491 $cpuflags
3492 }
3493
3494 probe_arm_arch() {
3495 if check_arm_arch 4; then echo armv4
3496 elif check_arm_arch 4T; then echo armv4t
3497 elif check_arm_arch 5; then echo armv5
3498 elif check_arm_arch 5E; then echo armv5e
3499 elif check_arm_arch 5T; then echo armv5t
3500 elif check_arm_arch 5TE; then echo armv5te
3501 elif check_arm_arch 5TEJ; then echo armv5te
3502 elif check_arm_arch 6; then echo armv6
3503 elif check_arm_arch 6J; then echo armv6j
3504 elif check_arm_arch 6K; then echo armv6k
3505 elif check_arm_arch 6Z; then echo armv6z
3506 elif check_arm_arch 6ZK; then echo armv6zk
3507 elif check_arm_arch 6T2; then echo armv6t2
3508 elif check_arm_arch 7; then echo armv7
3509 elif check_arm_arch 7A 7_A; then echo armv7-a
3510 elif check_arm_arch 7S; then echo armv7-a
3511 elif check_arm_arch 7R 7_R; then echo armv7-r
3512 elif check_arm_arch 7M 7_M; then echo armv7-m
3513 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3514 elif check_arm_arch 8A 8_A; then echo armv8-a
3515 fi
3516 }
3517
3518 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3519
3520 case $cpu in
3521 armv*)
3522 cpuflags="-march=$cpu"
3523 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3524 ;;
3525 *)
3526 cpuflags="-mcpu=$cpu"
3527 case $cpu in
3528 cortex-a*) subarch=armv7a ;;
3529 cortex-r*) subarch=armv7r ;;
3530 cortex-m*) enable thumb; subarch=armv7m ;;
3531 arm11*) subarch=armv6 ;;
3532 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3533 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3534 *) subarch=$(probe_arm_arch) ;;
3535 esac
3536 ;;
3537 esac
3538
3539 case "$subarch" in
3540 armv5t*) enable fast_clz ;;
3541 armv[6-8]*) enable fast_clz fast_unaligned ;;
3542 esac
3543
3544 elif enabled avr32; then
3545
3546 case $cpu in
3547 ap7[02]0[0-2])
3548 subarch="avr32_ap"
3549 cpuflags="-mpart=$cpu"
3550 ;;
3551 ap)
3552 subarch="avr32_ap"
3553 cpuflags="-march=$cpu"
3554 ;;
3555 uc3[ab]*)
3556 subarch="avr32_uc"
3557 cpuflags="-mcpu=$cpu"
3558 ;;
3559 uc)
3560 subarch="avr32_uc"
3561 cpuflags="-march=$cpu"
3562 ;;
3563 esac
3564
3565 elif enabled bfin; then
3566
3567 cpuflags="-mcpu=$cpu"
3568
3569 elif enabled mips; then
3570
3571 cpuflags="-march=$cpu"
3572
3573 elif enabled ppc; then
3574
3575 disable ldbrx
3576
3577 case $(tolower $cpu) in
3578 601|ppc601|powerpc601)
3579 cpuflags="-mcpu=601"
3580 disable altivec
3581 ;;
3582 603*|ppc603*|powerpc603*)
3583 cpuflags="-mcpu=603"
3584 disable altivec
3585 ;;
3586 604*|ppc604*|powerpc604*)
3587 cpuflags="-mcpu=604"
3588 disable altivec
3589 ;;
3590 g3|75*|ppc75*|powerpc75*)
3591 cpuflags="-mcpu=750"
3592 disable altivec
3593 ;;
3594 g4|745*|ppc745*|powerpc745*)
3595 cpuflags="-mcpu=7450"
3596 disable vsx
3597 ;;
3598 74*|ppc74*|powerpc74*)
3599 cpuflags="-mcpu=7400"
3600 disable vsx
3601 ;;
3602 g5|970|ppc970|powerpc970)
3603 cpuflags="-mcpu=970"
3604 disable vsx
3605 ;;
3606 power[3-6]*)
3607 cpuflags="-mcpu=$cpu"
3608 disable vsx
3609 ;;
3610 power[7-8]*)
3611 cpuflags="-mcpu=$cpu"
3612 enable ldbrx
3613 ;;
3614 cell)
3615 cpuflags="-mcpu=cell"
3616 enable ldbrx
3617 disable vsx
3618 ;;
3619 e500mc)
3620 cpuflags="-mcpu=e500mc"
3621 disable altivec
3622 ;;
3623 e500v2)
3624 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3625 disable altivec
3626 disable dcbzl
3627 ;;
3628 e500)
3629 cpuflags="-mcpu=8540 -mhard-float"
3630 disable altivec
3631 disable dcbzl
3632 ;;
3633 esac
3634
3635 elif enabled sparc; then
3636
3637 case $cpu in
3638 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3639 cpuflags="-mcpu=$cpu"
3640 ;;
3641 ultrasparc*|niagara[234])
3642 cpuflags="-mcpu=$cpu"
3643 ;;
3644 esac
3645
3646 elif enabled x86; then
3647
3648 case $cpu in
3649 i[345]86|pentium)
3650 cpuflags="-march=$cpu"
3651 disable i686
3652 disable mmx
3653 ;;
3654 # targets that do NOT support nopl and conditional mov (cmov)
3655 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3656 cpuflags="-march=$cpu"
3657 disable i686
3658 ;;
3659 # targets that do support nopl and conditional mov (cmov)
3660 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3661 cpuflags="-march=$cpu"
3662 enable i686
3663 enable fast_cmov
3664 ;;
3665 # targets that do support conditional mov but on which it's slow
3666 pentium4|pentium4m|prescott|nocona)
3667 cpuflags="-march=$cpu"
3668 enable i686
3669 disable fast_cmov
3670 ;;
3671 esac
3672
3673 fi
3674
3675 if [ "$cpu" != generic ]; then
3676 add_cflags $cpuflags
3677 add_asflags $cpuflags
3678 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3679 fi
3680
3681 # compiler sanity check
3682 check_exec <<EOF
3683 int main(void){ return 0; }
3684 EOF
3685 if test "$?" != 0; then
3686 echo "$cc is unable to create an executable file."
3687 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3688 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3689 echo "Only do this if you know what cross compiling means."
3690 fi
3691 die "C compiler test failed."
3692 fi
3693
3694 add_cppflags -D_ISOC99_SOURCE
3695 check_cflags -std=c99
3696 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3697 #include <stdlib.h>
3698 EOF
3699 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3700 #include <stdlib.h>
3701 EOF
3702
3703 add_host_cppflags -D_ISOC99_SOURCE
3704 check_host_cflags -std=c99
3705 check_host_cflags -Wall
3706 check_host_cflags -O3
3707
3708 check_64bit(){
3709 arch32=$1
3710 arch64=$2
3711 expr=$3
3712 check_code cc "" "int test[2*($expr) - 1]" &&
3713 subarch=$arch64 || subarch=$arch32
3714 }
3715
3716 case "$arch" in
3717 aarch64|alpha|ia64)
3718 spic=$shared
3719 ;;
3720 mips)
3721 check_64bit mips mips64 '_MIPS_SIM > 1'