114beafdc409c0e321fa17fd066849d5f22ffe1f
[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-pod2man do not build manual pages
117 --disable-texi2html do not build HTML documentation
118 --disable-avdevice disable libavdevice build
119 --disable-avcodec disable libavcodec build
120 --disable-avformat disable libavformat build
121 --disable-avutil disable libavutil build
122 --disable-swscale disable libswscale build
123 --disable-avfilter disable video filter support [no]
124 --disable-avresample disable libavresample build [no]
125 --disable-pthreads disable pthreads [auto]
126 --disable-w32threads disable Win32 threads [auto]
127 --disable-network disable network support [no]
128 --disable-dct disable DCT code
129 --disable-error-resilience disable error resilience code
130 --disable-lsp disable LSP code
131 --disable-lzo disable LZO decoder code
132 --disable-mdct disable MDCT code
133 --disable-rdft disable RDFT code
134 --disable-fft disable FFT code
135 --disable-faan disable floating point AAN (I)DCT code
136
137 Individual component options:
138 --disable-everything disable all components listed below
139 --disable-encoder=NAME disable encoder NAME
140 --enable-encoder=NAME enable encoder NAME
141 --disable-encoders disable all encoders
142 --disable-decoder=NAME disable decoder NAME
143 --enable-decoder=NAME enable decoder NAME
144 --disable-decoders disable all decoders
145 --disable-hwaccel=NAME disable hwaccel NAME
146 --enable-hwaccel=NAME enable hwaccel NAME
147 --disable-hwaccels disable all hwaccels
148 --disable-muxer=NAME disable muxer NAME
149 --enable-muxer=NAME enable muxer NAME
150 --disable-muxers disable all muxers
151 --disable-demuxer=NAME disable demuxer NAME
152 --enable-demuxer=NAME enable demuxer NAME
153 --disable-demuxers disable all demuxers
154 --enable-parser=NAME enable parser NAME
155 --disable-parser=NAME disable parser NAME
156 --disable-parsers disable all parsers
157 --enable-bsf=NAME enable bitstream filter NAME
158 --disable-bsf=NAME disable bitstream filter NAME
159 --disable-bsfs disable all bitstream filters
160 --enable-protocol=NAME enable protocol NAME
161 --disable-protocol=NAME disable protocol NAME
162 --disable-protocols disable all protocols
163 --enable-indev=NAME enable input device NAME
164 --disable-indev=NAME disable input device NAME
165 --disable-indevs disable input devices
166 --enable-outdev=NAME enable output device NAME
167 --disable-outdev=NAME disable output device NAME
168 --disable-outdevs disable output devices
169 --disable-devices disable all devices
170 --enable-filter=NAME enable filter NAME
171 --disable-filter=NAME disable filter NAME
172 --disable-filters disable all filters
173
174 External library support:
175
176 Using any of the following switches will allow Libav to link to the
177 corresponding external library. All the components depending on that library
178 will become enabled, if all their other dependencies are met and they are not
179 explicitly disabled. E.g. --enable-libwavpack will enable linking to
180 libwavpack and allow the libwavpack encoder to be built, unless it is
181 specifically disabled with --disable-encoder=libwavpack.
182
183 Note that only the system libraries are auto-detected. All the other external
184 libraries must be explicitly enabled.
185
186 Also note that the following help text describes the purpose of the libraries
187 themselves, not all their features will necessarily be usable by Libav.
188
189 --enable-avisynth video frameserver
190 --enable-bzlib bzip2 compression [autodetect]
191 --enable-frei0r video filtering plugins
192 --enable-gnutls crypto
193 --enable-libbs2b Bauer stereophonic-to-binaural DSP
194 --enable-libcdio audio CD input
195 --enable-libdc1394 IEEE 1394/Firewire camera input
196 --enable-libdcadec DCA audio decoding
197 --enable-libfaac AAC audio encoding
198 --enable-libfdk-aac AAC audio encoding/decoding
199 --enable-libfontconfig font configuration and management
200 --enable-libfreetype font rendering
201 --enable-libgsm GSM audio encoding/decoding
202 --enable-libhdcd HDCD decoding filter
203 --enable-libilbc ILBC audio encoding/decoding
204 --enable-libkvazaar HEVC video encoding
205 --enable-libmp3lame MP3 audio encoding
206 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
207 --enable-libopencore-amrwb AMR-WB audio decoding
208 --enable-libopencv computer vision
209 --enable-libopenh264 H.264 video encoding/decoding
210 --enable-libopenjpeg JPEG 2000 image encoding/decoding
211 --enable-libopus Opus audio encoding/decoding
212 --enable-libpulse Pulseaudio sound server
213 --enable-librtmp RTMP streaming
214 --enable-libschroedinger Dirac video encoding/decoding
215 --enable-libsnappy snappy compression
216 --enable-libspeex Speex audio encoding/decoding
217 --enable-libtheora Theora video encoding/decoding
218 --enable-libtwolame MP2 audio encoding
219 --enable-libvo-aacenc AAC audio encoding
220 --enable-libvo-amrwbenc AMR-WB audio encoding
221 --enable-libvorbis Vorbis audio encoding/decoding
222 --enable-libvpx VP* video encoding/decoding
223 --enable-libwavpack Wavpack audio encoding/decoding
224 --enable-libwebp WebP image encoding/decoding
225 --enable-libx264 H.264 video encoding
226 --enable-libx265 HEVC video encoding
227 --enable-libxavs Chinese AVS video encoding
228 --enable-libxcb X window system protocol communication
229 --enable-libxcb-shm X11 shm communication [auto]
230 --enable-libxcb-xfixes X11 mouse rendering [auto]
231 --enable-libxvid MPEG-4 ASP video encoding
232 --enable-openssl crypto
233 --enable-zlib compression [autodetect]
234
235 The following libraries provide various hardware acceleration features:
236 --enable-cuda Nvidia CUDA (dynamically linked)
237 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
238 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
239 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
240 --enable-libnpp Nvidia CUDA processing
241 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
242 --enable-nvenc Nvidia video encoding
243 --enable-omx OpenMAX IL
244 --enable-omx-rpi OpenMAX IL for Raspberry Pi
245 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
246 --enable-vda Apple Video Decode Acceleration [auto]
247 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
248
249 Toolchain options:
250 --arch=ARCH select architecture [$arch]
251 --cpu=CPU select the minimum required CPU (affects
252 instruction selection, may crash on older CPUs)
253 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
254 --enable-cross-compile assume a cross-compiler is used
255 --sysroot=PATH root of cross-build tree
256 --sysinclude=PATH location of cross-build system headers
257 --target-os=OS compiler targets OS [$target_os]
258 --target-exec=CMD command to run executables on target
259 --target-path=DIR path to view of build directory on target
260 --target-samples=DIR path to samples directory on target
261 --toolchain=NAME set tool defaults according to NAME
262 --nm=NM use nm tool
263 --ar=AR use archive tool AR [$ar_default]
264 --as=AS use assembler AS [$as_default]
265 --cc=CC use C compiler CC [$cc_default]
266 --objcc=OCC use ObjC compiler OCC [$cc_default]
267 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
268 --ld=LD use linker LD
269 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
270 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
271 --host-cc=HOSTCC use host C compiler HOSTCC
272 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
273 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
274 --host-ld=HOSTLD use host linker HOSTLD
275 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
276 --host-libs=HLIBS use libs HLIBS when linking for host
277 --host-os=OS compiler host OS [$target_os]
278 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
279 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
280 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
281 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
282 --extra-libs=ELIBS add ELIBS [$ELIBS]
283 --extra-version=STRING version string suffix []
284 --optflags=OPTFLAGS override optimization-related compiler flags
285 --build-suffix=SUFFIX library name suffix []
286 --enable-pic build position-independent code
287 --enable-thumb compile for Thumb instruction set
288 --enable-lto use link-time optimization
289 --env="ENV=override" override the environment variables
290
291 Advanced options (experts only):
292 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
293 --custom-allocator=NAME use a supported custom allocator
294 --disable-symver disable symbol versioning
295 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
296 --disable-safe-bitstream-reader
297 disable buffer boundary checking in bitreaders
298 (faster, but may crash)
299 --enable-sram allow use of on-chip SRAM
300
301 Optimization options (experts only):
302 --disable-asm disable all assembly optimizations
303 --disable-altivec disable AltiVec optimizations
304 --disable-vsx disable VSX optimizations
305 --disable-power8 disable POWER8 optimizations
306 --disable-amd3dnow disable 3DNow! optimizations
307 --disable-amd3dnowext disable 3DNow! extended optimizations
308 --disable-mmx disable MMX optimizations
309 --disable-mmxext disable MMXEXT optimizations
310 --disable-sse disable SSE optimizations
311 --disable-sse2 disable SSE2 optimizations
312 --disable-sse3 disable SSE3 optimizations
313 --disable-ssse3 disable SSSE3 optimizations
314 --disable-sse4 disable SSE4 optimizations
315 --disable-sse42 disable SSE4.2 optimizations
316 --disable-avx disable AVX optimizations
317 --disable-xop disable XOP optimizations
318 --disable-fma3 disable FMA3 optimizations
319 --disable-fma4 disable FMA4 optimizations
320 --disable-avx2 disable AVX2 optimizations
321 --disable-armv5te disable armv5te optimizations
322 --disable-armv6 disable armv6 optimizations
323 --disable-armv6t2 disable armv6t2 optimizations
324 --disable-vfp disable VFP optimizations
325 --disable-neon disable NEON optimizations
326 --disable-inline-asm disable use of inline assembly
327 --disable-yasm disable use of nasm/yasm assembly
328
329 Developer options (useful when working on Libav itself):
330 --disable-debug disable debugging symbols
331 --enable-debug=LEVEL set the debug level [$debuglevel]
332 --disable-optimizations disable compiler optimizations
333 --enable-extra-warnings enable more compiler warnings
334 --samples=PATH location of test samples for FATE, if not set use
335 \$LIBAV_SAMPLES at make invocation time.
336 --enable-neon-clobber-test check NEON registers for clobbering (should be
337 used only for debugging purposes)
338 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
339 should be used only for debugging purposes)
340 --enable-random randomly enable/disable components
341 --disable-random
342 --enable-random=LIST randomly enable/disable specific components or
343 --disable-random=LIST component groups. LIST is a comma-separated list
344 of NAME[:PROB] entries where NAME is a component
345 (group) and PROB the probability associated with
346 NAME (default 0.5).
347 --random-seed=VALUE seed value for --enable/disable-random
348 --disable-valgrind-backtrace do not print a backtrace under Valgrind
349 (only applies to --disable-optimizations builds)
350
351 NOTE: Object files are built at the place where configure is launched.
352 EOF
353 exit 0
354 }
355
356 quotes='""'
357
358 log(){
359 echo "$@" >> $logfile
360 }
361
362 log_file(){
363 log BEGIN $1
364 i=1
365 while read line; do
366 printf '%5s %s\n' "${i}" "${line}"
367 i=$(($i+1))
368 done < $1 >> $logfile
369 log END $1
370 }
371
372 echolog(){
373 log "$@"
374 echo "$@"
375 }
376
377 warn(){
378 log "WARNING: $*"
379 WARNINGS="${WARNINGS}WARNING: $*\n"
380 }
381
382 die(){
383 echolog "$@"
384 cat <<EOF
385
386 If you think configure made a mistake, make sure you are using the latest
387 version from Git. If the latest version fails, report the problem to the
388 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
389 EOF
390 if disabled logging; then
391 cat <<EOF
392 Rerun configure with logging enabled (do not use --disable-logging), and
393 include the log this produces with your report.
394 EOF
395 else
396 cat <<EOF
397 Include the log file "$logfile" produced by configure as this will help
398 solving the problem.
399 EOF
400 fi
401 exit 1
402 }
403
404 # Avoid locale weirdness, besides we really just want to translate ASCII.
405 toupper(){
406 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
407 }
408
409 tolower(){
410 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
411 }
412
413 c_escape(){
414 echo "$*" | sed 's/["\\]/\\\0/g'
415 }
416
417 sh_quote(){
418 v=$(echo "$1" | sed "s/'/'\\\\''/g")
419 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
420 echo "$v"
421 }
422
423 cleanws(){
424 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
425 }
426
427 filter(){
428 pat=$1
429 shift
430 for v; do
431 eval "case $v in $pat) echo $v ;; esac"
432 done
433 }
434
435 filter_out(){
436 pat=$1
437 shift
438 for v; do
439 eval "case $v in $pat) ;; *) echo $v ;; esac"
440 done
441 }
442
443 map(){
444 m=$1
445 shift
446 for v; do eval $m; done
447 }
448
449 add_suffix(){
450 suffix=$1
451 shift
452 for v; do echo ${v}${suffix}; done
453 }
454
455 set_all(){
456 value=$1
457 shift
458 for var in $*; do
459 eval $var=$value
460 done
461 }
462
463 set_weak(){
464 value=$1
465 shift
466 for var; do
467 eval : \${$var:=$value}
468 done
469 }
470
471 sanitize_var_name(){
472 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
473 }
474
475 set_safe(){
476 var=$1
477 shift
478 eval $(sanitize_var_name "$var")='$*'
479 }
480
481 get_safe(){
482 eval echo \$$(sanitize_var_name "$1")
483 }
484
485 pushvar(){
486 for pvar in $*; do
487 eval level=\${${pvar}_level:=0}
488 eval ${pvar}_${level}="\$$pvar"
489 eval ${pvar}_level=$(($level+1))
490 done
491 }
492
493 popvar(){
494 for pvar in $*; do
495 eval level=\${${pvar}_level:-0}
496 test $level = 0 && continue
497 eval level=$(($level-1))
498 eval $pvar="\${${pvar}_${level}}"
499 eval ${pvar}_level=$level
500 eval unset ${pvar}_${level}
501 done
502 }
503
504 enable(){
505 set_all yes $*
506 }
507
508 disable(){
509 set_all no $*
510 }
511
512 enable_weak(){
513 set_weak yes $*
514 }
515
516 disable_weak(){
517 set_weak no $*
518 }
519
520 enable_safe(){
521 for var; do
522 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
523 done
524 }
525
526 disable_safe(){
527 for var; do
528 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
529 done
530 }
531
532 do_enable_deep(){
533 for var; do
534 enabled $var && continue
535 eval sel="\$${var}_select"
536 eval sgs="\$${var}_suggest"
537 pushvar var sgs
538 enable_deep $sel
539 popvar sgs
540 enable_deep_weak $sgs
541 popvar var
542 done
543 }
544
545 enable_deep(){
546 do_enable_deep $*
547 enable $*
548 }
549
550 enable_deep_weak(){
551 for var; do
552 disabled $var && continue
553 pushvar var
554 do_enable_deep $var
555 popvar var
556 enable_weak $var
557 done
558 }
559
560 enabled(){
561 test "${1#!}" = "$1" && op== || op=!=
562 eval test "x\$${1#!}" $op "xyes"
563 }
564
565 disabled(){
566 test "${1#!}" = "$1" && op== || op=!=
567 eval test "x\$${1#!}" $op "xno"
568 }
569
570 enabled_all(){
571 for opt; do
572 enabled $opt || return 1
573 done
574 }
575
576 disabled_all(){
577 for opt; do
578 disabled $opt || return 1
579 done
580 }
581
582 enabled_any(){
583 for opt; do
584 enabled $opt && return 0
585 done
586 }
587
588 disabled_any(){
589 for opt; do
590 disabled $opt && return 0
591 done
592 return 1
593 }
594
595 set_default(){
596 for opt; do
597 eval : \${$opt:=\$${opt}_default}
598 done
599 }
600
601 is_in(){
602 value=$1
603 shift
604 for var in $*; do
605 [ $var = $value ] && return 0
606 done
607 return 1
608 }
609
610 do_check_deps(){
611 for cfg; do
612 cfg="${cfg#!}"
613 enabled ${cfg}_checking && die "Circular dependency for $cfg."
614 disabled ${cfg}_checking && continue
615 enable ${cfg}_checking
616 append allopts $cfg
617
618 eval dep_all="\$${cfg}_deps"
619 eval dep_any="\$${cfg}_deps_any"
620 eval dep_sel="\$${cfg}_select"
621 eval dep_sgs="\$${cfg}_suggest"
622 eval dep_ifa="\$${cfg}_if"
623 eval dep_ifn="\$${cfg}_if_any"
624
625 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
626 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
627 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
628
629 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
630 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
631 enabled_all $dep_all || disable $cfg
632 enabled_any $dep_any || disable $cfg
633 disabled_any $dep_sel && disable $cfg
634
635 if enabled $cfg; then
636 enable_deep $dep_sel
637 enable_deep_weak $dep_sgs
638 fi
639
640 disable ${cfg}_checking
641 done
642 }
643
644 check_deps(){
645 unset allopts
646
647 do_check_deps "$@"
648
649 for cfg in $allopts; do
650 enabled $cfg || continue
651 eval dep_extralibs="\$${cfg}_extralibs"
652 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
653 done
654 }
655
656 print_config(){
657 pfx=$1
658 files=$2
659 shift 2
660 map 'eval echo "$v \${$v:-no}"' "$@" |
661 awk "BEGIN { split(\"$files\", files) }
662 {
663 c = \"$pfx\" toupper(\$1);
664 v = \$2;
665 sub(/yes/, 1, v);
666 sub(/no/, 0, v);
667 for (f in files) {
668 file = files[f];
669 if (file ~ /\\.h\$/) {
670 printf(\"#define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.asm\$/) {
672 printf(\"%%define %s %d\\n\", c, v) >>file;
673 } else if (file ~ /\\.mak\$/) {
674 n = -v ? \"\" : \"!\";
675 printf(\"%s%s=yes\\n\", n, c) >>file;
676 }
677 }
678 }"
679 }
680
681 print_enabled(){
682 suf=$1
683 shift
684 for v; do
685 enabled $v && printf "%s\n" ${v%$suf}
686 done
687 }
688
689 append(){
690 var=$1
691 shift
692 eval "$var=\"\$$var $*\""
693 }
694
695 prepend(){
696 var=$1
697 shift
698 eval "$var=\"$* \$$var\""
699 }
700
701 unique(){
702 var=$1
703 uniq_list=""
704 for tok in $(eval echo \$$var); do
705 uniq_list="$(filter_out $tok $uniq_list) $tok"
706 done
707 eval "$var=\"${uniq_list}\""
708 }
709
710 add_cppflags(){
711 append CPPFLAGS "$@"
712 }
713
714 add_cflags(){
715 append CFLAGS $($cflags_filter "$@")
716 }
717
718 add_asflags(){
719 append ASFLAGS $($asflags_filter "$@")
720 }
721
722 add_objcflags(){
723 append OBJCFLAGS $($objcflags_filter "$@")
724 }
725
726 add_ldflags(){
727 append LDFLAGS $($ldflags_filter "$@")
728 }
729
730 add_ldexeflags(){
731 append LDEXEFLAGS $($ldflags_filter "$@")
732 }
733
734 add_stripflags(){
735 append STRIPFLAGS "$@"
736 }
737
738 add_extralibs(){
739 prepend extralibs $($ldflags_filter "$@")
740 }
741
742 add_host_cppflags(){
743 append host_cppflags "$@"
744 }
745
746 add_host_cflags(){
747 append host_cflags $($host_cflags_filter "$@")
748 }
749
750 add_host_ldflags(){
751 append host_ldflags $($host_ldflags_filter "$@")
752 }
753
754 add_compat(){
755 append compat_objs $1
756 shift
757 map 'add_cppflags -D$v' "$@"
758 }
759
760 check_cmd(){
761 log "$@"
762 "$@" >> $logfile 2>&1
763 }
764
765 cc_o(){
766 eval printf '%s\\n' $CC_O
767 }
768
769 cc_e(){
770 eval printf '%s\\n' $CC_E
771 }
772
773 check_cc(){
774 log check_cc "$@"
775 cat > $TMPC
776 log_file $TMPC
777 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
778 }
779
780 check_objcc(){
781 log check_objcc "$@"
782 cat > $TMPC
783 log_file $TMPC
784 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
785 }
786
787 check_cpp(){
788 log check_cpp "$@"
789 cat > $TMPC
790 log_file $TMPC
791 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
792 }
793
794 as_o(){
795 eval printf '%s\\n' $AS_O
796 }
797
798 check_as(){
799 log check_as "$@"
800 cat > $TMPS
801 log_file $TMPS
802 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
803 }
804
805 check_inline_asm(){
806 log check_inline_asm "$@"
807 name="$1"
808 code="$2"
809 shift 2
810 disable $name
811 check_cc "$@" <<EOF && enable $name
812 void foo(void){ __asm__ volatile($code); }
813 EOF
814 }
815
816 check_insn(){
817 log check_insn "$@"
818 check_inline_asm ${1}_inline "\"$2\""
819 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
820 }
821
822 check_yasm(){
823 log check_yasm "$@"
824 echo "$1" > $TMPS
825 log_file $TMPS
826 shift 1
827 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
828 }
829
830 ld_o(){
831 eval printf '%s\\n' $LD_O
832 }
833
834 check_ld(){
835 log check_ld "$@"
836 flags=$(filter_out '-l*' "$@")
837 libs=$(filter '-l*' "$@")
838 check_cc $($cflags_filter $flags) || return
839 flags=$($ldflags_filter $flags)
840 libs=$($ldflags_filter $libs)
841 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
842 }
843
844 print_include(){
845 hdr=$1
846 test "${hdr%.h}" = "${hdr}" &&
847 echo "#include $hdr" ||
848 echo "#include <$hdr>"
849 }
850
851 check_code(){
852 log check_code "$@"
853 check=$1
854 headers=$2
855 code=$3
856 shift 3
857 {
858 for hdr in $headers; do
859 print_include $hdr
860 done
861 echo "int main(void) { $code; return 0; }"
862 } | check_$check "$@"
863 }
864
865 check_cppflags(){
866 log check_cppflags "$@"
867 check_cc "$@" <<EOF && append CPPFLAGS "$@"
868 int x;
869 EOF
870 }
871
872 test_cflags(){
873 log test_cflags "$@"
874 set -- $($cflags_filter "$@")
875 check_cc "$@" <<EOF
876 int x;
877 EOF
878 }
879
880 check_cflags(){
881 log check_cflags "$@"
882 test_cflags "$@" && add_cflags "$@"
883 }
884
885 test_objcflags(){
886 log test_cflags "$@"
887 set -- $($cflags_filter "$@")
888 check_objcc "$@" <<EOF
889 int x;
890 EOF
891 }
892
893 check_objcflags(){
894 log check_cflags "$@"
895 test_objcflags "$@" && add_objcflags "$@"
896 }
897
898 test_ldflags(){
899 log test_ldflags "$@"
900 check_ld "$@" <<EOF
901 int main(void){ return 0; }
902 EOF
903 }
904
905 check_ldflags(){
906 log check_ldflags "$@"
907 test_ldflags "$@" && add_ldflags "$@"
908 }
909
910 test_stripflags(){
911 log test_stripflags "$@"
912 # call check_cc to get a fresh TMPO
913 check_cc <<EOF
914 int main(void) { return 0; }
915 EOF
916 check_cmd $strip $STRIPFLAGS "$@" $TMPO
917 }
918
919 check_stripflags(){
920 log check_stripflags "$@"
921 test_stripflags "$@" && add_stripflags "$@"
922 }
923
924 check_header(){
925 log check_header "$@"
926 header=$1
927 shift
928 disable_safe $header
929 check_cpp "$@" <<EOF && enable_safe $header
930 #include <$header>
931 int x;
932 EOF
933 }
934
935 check_func(){
936 log check_func "$@"
937 func=$1
938 shift
939 disable $func
940 check_ld "$@" <<EOF && enable $func
941 extern int $func();
942 int main(void){ $func(); }
943 EOF
944 }
945
946 check_mathfunc(){
947 log check_mathfunc "$@"
948 func=$1
949 narg=$2
950 shift 2
951 test $narg = 2 && args="f, g" || args="f"
952 disable $func
953 check_ld "$@" <<EOF && enable $func
954 #include <math.h>
955 float foo(float f, float g) { return $func($args); }
956 int main(void){ return 0; }
957 EOF
958 }
959
960 check_func_headers(){
961 log check_func_headers "$@"
962 headers=$1
963 funcs=$2
964 shift 2
965 {
966 for hdr in $headers; do
967 print_include $hdr
968 done
969 for func in $funcs; do
970 echo "long check_$func(void) { return (long) $func; }"
971 done
972 echo "int main(void) { return 0; }"
973 } | check_ld "$@" && enable $funcs && enable_safe $headers
974 }
975
976 check_cpp_condition(){
977 log check_cpp_condition "$@"
978 header=$1
979 condition=$2
980 shift 2
981 check_cpp "$@" <<EOF
982 #include <$header>
983 #if !($condition)
984 #error "unsatisfied condition: $condition"
985 #endif
986 EOF
987 }
988
989 test_cflags_cpp(){
990 log test_cflags_cpp "$@"
991 flags=$1
992 condition=$2
993 shift 2
994 set -- $($cflags_filter "$flags")
995 check_cpp "$@" <<EOF
996 #if !($condition)
997 #error "unsatisfied condition: $condition"
998 #endif
999 EOF
1000 }
1001
1002 check_lib(){
1003 log check_lib "$@"
1004 headers="$1"
1005 funcs="$2"
1006 shift 2
1007 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1008 }
1009
1010 check_pkg_config(){
1011 log check_pkg_config "$@"
1012 pkg="$1"
1013 headers="$2"
1014 funcs="$3"
1015 shift 3
1016 check_cmd $pkg_config --exists --print-errors $pkg || return
1017 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1018 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1019 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1020 set_safe "${pkg}_cflags" $pkg_cflags &&
1021 set_safe "${pkg}_libs" $pkg_libs
1022 }
1023
1024 check_exec(){
1025 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1026 }
1027
1028 check_exec_crash(){
1029 code=$(cat)
1030
1031 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1032 # are safe but may not be available everywhere. Thus we use
1033 # raise(SIGTERM) instead. The check is run in a subshell so we
1034 # can redirect the "Terminated" message from the shell. SIGBUS
1035 # is not defined by standard C so it is used conditionally.
1036
1037 (check_exec "$@") >> $logfile 2>&1 <<EOF
1038 #include <signal.h>
1039 static void sighandler(int sig){
1040 raise(SIGTERM);
1041 }
1042 int foo(void){
1043 $code
1044 }
1045 int (*func_ptr)(void) = foo;
1046 int main(void){
1047 signal(SIGILL, sighandler);
1048 signal(SIGFPE, sighandler);
1049 signal(SIGSEGV, sighandler);
1050 #ifdef SIGBUS
1051 signal(SIGBUS, sighandler);
1052 #endif
1053 return func_ptr();
1054 }
1055 EOF
1056 }
1057
1058 check_type(){
1059 log check_type "$@"
1060 headers=$1
1061 type=$2
1062 shift 2
1063 disable_safe "$type"
1064 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1065 }
1066
1067 check_struct(){
1068 log check_struct "$@"
1069 headers=$1
1070 struct=$2
1071 member=$3
1072 shift 3
1073 disable_safe "${struct}_${member}"
1074 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1075 enable_safe "${struct}_${member}"
1076 }
1077
1078 check_builtin(){
1079 log check_builtin "$@"
1080 name=$1
1081 headers=$2
1082 builtin=$3
1083 shift 3
1084 disable "$name"
1085 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1086 }
1087
1088 check_compile_assert(){
1089 log check_compile_assert "$@"
1090 name=$1
1091 headers=$2
1092 condition=$3
1093 shift 3
1094 disable "$name"
1095 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1096 }
1097
1098 require(){
1099 name="$1"
1100 headers="$2"
1101 func="$3"
1102 shift 3
1103 check_lib "$headers" $func "$@" || die "ERROR: $name not found"
1104 }
1105
1106 require_pkg_config(){
1107 pkg="$1"
1108 check_pkg_config "$@" || die "ERROR: $pkg not found"
1109 add_cflags $(get_safe "${pkg}_cflags")
1110 add_extralibs $(get_safe "${pkg}_libs")
1111 }
1112
1113 hostcc_e(){
1114 eval printf '%s\\n' $HOSTCC_E
1115 }
1116
1117 hostcc_o(){
1118 eval printf '%s\\n' $HOSTCC_O
1119 }
1120
1121 check_host_cc(){
1122 log check_host_cc "$@"
1123 cat > $TMPC
1124 log_file $TMPC
1125 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1126 }
1127
1128 check_host_cpp(){
1129 log check_host_cpp "$@"
1130 cat > $TMPC
1131 log_file $TMPC
1132 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1133 }
1134
1135 check_host_cppflags(){
1136 log check_host_cppflags "$@"
1137 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1138 int x;
1139 EOF
1140 }
1141
1142 check_host_cflags(){
1143 log check_host_cflags "$@"
1144 set -- $($host_cflags_filter "$@")
1145 check_host_cc "$@" <<EOF && append host_cflags "$@"
1146 int x;
1147 EOF
1148 }
1149
1150 check_host_cpp_condition(){
1151 log check_host_cpp_condition "$@"
1152 header=$1
1153 condition=$2
1154 shift 2
1155 check_host_cpp "$@" <<EOF
1156 #include <$header>
1157 #if !($condition)
1158 #error "unsatisfied condition: $condition"
1159 #endif
1160 EOF
1161 }
1162
1163 apply(){
1164 file=$1
1165 shift
1166 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1167 }
1168
1169 cp_if_changed(){
1170 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1171 mkdir -p "$(dirname $2)"
1172 $cp_f "$1" "$2"
1173 }
1174
1175 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1176 # system-dependent things.
1177
1178 AVCODEC_COMPONENTS="
1179 bsfs
1180 decoders
1181 encoders
1182 hwaccels
1183 parsers
1184 "
1185
1186 AVDEVICE_COMPONENTS="
1187 indevs
1188 outdevs
1189 "
1190 AVFILTER_COMPONENTS="
1191 filters
1192 "
1193 AVFORMAT_COMPONENTS="
1194 demuxers
1195 muxers
1196 protocols
1197 "
1198
1199 AVRESAMPLE_COMPONENTS=""
1200 AVUTIL_COMPONENTS=""
1201
1202 COMPONENT_LIST="
1203 $AVCODEC_COMPONENTS
1204 $AVDEVICE_COMPONENTS
1205 $AVFILTER_COMPONENTS
1206 $AVFORMAT_COMPONENTS
1207 $AVRESAMPLE_COMPONENTS
1208 $AVUTIL_COMPONENTS
1209 "
1210
1211 EXAMPLE_LIST="
1212 avcodec_example
1213 filter_audio_example
1214 metadata_example
1215 output_example
1216 qsvdec_example
1217 transcode_aac_example
1218 "
1219
1220 HWACCEL_LIBRARY_NONFREE_LIST="
1221 cuda
1222 libnpp
1223 "
1224 HWACCEL_LIBRARY_LIST="
1225 $HWACCEL_LIBRARY_NONFREE_LIST
1226 d3d11va
1227 dxva2
1228 libmfx
1229 mmal
1230 nvenc
1231 omx
1232 vaapi
1233 vda
1234 vdpau
1235 "
1236
1237 EXTERNAL_LIBRARY_GPL_LIST="
1238 libcdio
1239 libx264
1240 libx265
1241 libxavs
1242 libxvid
1243 "
1244
1245 EXTERNAL_LIBRARY_NONFREE_LIST="
1246 libfaac
1247 libfdk_aac
1248 openssl
1249 "
1250
1251 EXTERNAL_LIBRARY_VERSION3_LIST="
1252 libopencore_amrnb
1253 libopencore_amrwb
1254 libvo_aacenc
1255 libvo_amrwbenc
1256 "
1257
1258 EXTERNAL_LIBRARY_LIST="
1259 $EXTERNAL_LIBRARY_GPL_LIST
1260 $EXTERNAL_LIBRARY_NONFREE_LIST
1261 $EXTERNAL_LIBRARY_VERSION3_LIST
1262 avisynth
1263 bzlib
1264 frei0r
1265 gnutls
1266 libbs2b
1267 libdc1394
1268 libdcadec
1269 libfontconfig
1270 libfreetype
1271 libgsm
1272 libhdcd
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 neon_clobber_test
1356 pic
1357 pod2man
1358 texi2html
1359 thumb
1360 valgrind_backtrace
1361 xmm_clobber_test
1362 "
1363
1364 THREADS_LIST="
1365 pthreads
1366 w32threads
1367 "
1368
1369 ATOMICS_LIST="
1370 atomics_gcc
1371 atomics_suncc
1372 atomics_win32
1373 "
1374
1375 ARCH_LIST="
1376 aarch64
1377 alpha
1378 arm
1379 avr32
1380 avr32_ap
1381 avr32_uc
1382 bfin
1383 ia64
1384 m68k
1385 mips
1386 mips64
1387 parisc
1388 ppc
1389 ppc64
1390 s390
1391 sh4
1392 sparc
1393 sparc64
1394 tilegx
1395 tilepro
1396 tomi
1397 x86
1398 x86_32
1399 x86_64
1400 "
1401
1402 ARCH_EXT_LIST_ARM="
1403 armv5te
1404 armv6
1405 armv6t2
1406 armv8
1407 neon
1408 vfp
1409 vfpv3
1410 "
1411
1412 ARCH_EXT_LIST_X86_SIMD="
1413 amd3dnow
1414 amd3dnowext
1415 avx
1416 avx2
1417 fma3
1418 fma4
1419 mmx
1420 mmxext
1421 sse
1422 sse2
1423 sse3
1424 sse4
1425 sse42
1426 ssse3
1427 xop
1428 "
1429
1430 ARCH_EXT_LIST_PPC="
1431 altivec
1432 dcbzl
1433 ldbrx
1434 power8
1435 ppc4xx
1436 vsx
1437 "
1438
1439 ARCH_EXT_LIST_X86="
1440 $ARCH_EXT_LIST_X86_SIMD
1441 cpunop
1442 i686
1443 "
1444
1445 ARCH_EXT_LIST_MIPS="
1446 loongson
1447 mips32r1
1448 mips64r1
1449 mips32r2
1450 mips64r2
1451 mips32r6
1452 mips64r6
1453 "
1454
1455 ARCH_EXT_LIST="
1456 $ARCH_EXT_LIST_ARM
1457 $ARCH_EXT_LIST_MIPS
1458 $ARCH_EXT_LIST_PPC
1459 $ARCH_EXT_LIST_X86
1460 vis
1461 "
1462
1463 ARCH_FEATURES="
1464 aligned_stack
1465 fast_64bit
1466 fast_clz
1467 fast_cmov
1468 local_aligned_8
1469 local_aligned_16
1470 local_aligned_32
1471 simd_align_16
1472 simd_align_32
1473 "
1474
1475 BUILTIN_LIST="
1476 atomic_cas_ptr
1477 machine_rw_barrier
1478 MemoryBarrier
1479 mm_empty
1480 rdtsc
1481 sem_timedwait
1482 sync_val_compare_and_swap
1483 "
1484 HAVE_LIST_CMDLINE="
1485 inline_asm
1486 symver
1487 yasm
1488 "
1489
1490 HAVE_LIST_PUB="
1491 bigendian
1492 fast_unaligned
1493 "
1494
1495 HEADERS_LIST="
1496 AVFoundation_AVFoundation_h
1497 alsa_asoundlib_h
1498 altivec_h
1499 arpa_inet_h
1500 cdio_paranoia_h
1501 cdio_paranoia_paranoia_h
1502 dispatch_dispatch_h
1503 dev_bktr_ioctl_bt848_h
1504 dev_bktr_ioctl_meteor_h
1505 dev_ic_bt8xx_h
1506 dev_video_bktr_ioctl_bt848_h
1507 dev_video_meteor_ioctl_meteor_h
1508 direct_h
1509 dlfcn_h
1510 d3d11_h
1511 dxva_h
1512 gsm_h
1513 io_h
1514 mach_mach_time_h
1515 machine_ioctl_bt848_h
1516 machine_ioctl_meteor_h
1517 malloc_h
1518 poll_h
1519 sndio_h
1520 soundcard_h
1521 stdatomic_h
1522 sys_mman_h
1523 sys_param_h
1524 sys_resource_h
1525 sys_select_h
1526 sys_soundcard_h
1527 sys_time_h
1528 sys_un_h
1529 sys_videoio_h
1530 unistd_h
1531 valgrind_valgrind_h
1532 windows_h
1533 winsock2_h
1534 "
1535
1536 INTRINSICS_LIST="
1537 intrinsics_neon
1538 "
1539
1540 MATH_FUNCS="
1541 atanf
1542 atan2f
1543 cbrtf
1544 cosf
1545 exp2
1546 exp2f
1547 expf
1548 isinf
1549 isnan
1550 ldexpf
1551 llrint
1552 llrintf
1553 log2
1554 log2f
1555 log10f
1556 lrint
1557 lrintf
1558 powf
1559 rint
1560 round
1561 roundf
1562 sinf
1563 trunc
1564 truncf
1565 "
1566
1567 SYSTEM_FUNCS="
1568 aligned_malloc
1569 clock_gettime
1570 closesocket
1571 CommandLineToArgvW
1572 CoTaskMemFree
1573 CryptGenRandom
1574 dlopen
1575 fcntl
1576 flt_lim
1577 fork
1578 getaddrinfo
1579 gethrtime
1580 getopt
1581 GetProcessAffinityMask
1582 GetProcessMemoryInfo
1583 GetProcessTimes
1584 getrusage
1585 GetSystemTimeAsFileTime
1586 gettimeofday
1587 gmtime_r
1588 inet_aton
1589 isatty
1590 jack_port_get_latency_range
1591 LoadLibrary
1592 localtime_r
1593 mach_absolute_time
1594 MapViewOfFile
1595 memalign
1596 mkstemp
1597 mmap
1598 mprotect
1599 nanosleep
1600 posix_memalign
1601 sched_getaffinity
1602 SetConsoleTextAttribute
1603 setmode
1604 setrlimit
1605 Sleep
1606 strerror_r
1607 sysconf
1608 sysctl
1609 usleep
1610 VirtualAlloc
1611 "
1612
1613 TOOLCHAIN_FEATURES="
1614 as_dn_directive
1615 as_fpu_directive
1616 as_func
1617 as_object_arch
1618 asm_mod_q
1619 attribute_may_alias
1620 attribute_packed
1621 ebp_available
1622 ebx_available
1623 gnu_as
1624 ibm_asm
1625 inline_asm_labels
1626 pragma_deprecated
1627 symver_asm_label
1628 symver_gnu_asm
1629 vfp_args
1630 xform_asm
1631 xmm_clobbers
1632 "
1633
1634 TYPES_LIST="
1635 CONDITION_VARIABLE_Ptr
1636 socklen_t
1637 struct_addrinfo
1638 struct_group_source_req
1639 struct_ip_mreq_source
1640 struct_ipv6_mreq
1641 struct_pollfd
1642 struct_rusage_ru_maxrss
1643 struct_sockaddr_in6
1644 struct_sockaddr_sa_len
1645 struct_sockaddr_storage
1646 struct_v4l2_frmivalenum_discrete
1647 "
1648
1649 HAVE_LIST="
1650 $ARCH_EXT_LIST
1651 $(add_suffix _external $ARCH_EXT_LIST)
1652 $(add_suffix _inline $ARCH_EXT_LIST)
1653 $ARCH_FEATURES
1654 $ATOMICS_LIST
1655 $BUILTIN_LIST
1656 $HAVE_LIST_CMDLINE
1657 $HAVE_LIST_PUB
1658 $HEADERS_LIST
1659 $INTRINSICS_LIST
1660 $MATH_FUNCS
1661 $SYSTEM_FUNCS
1662 $THREADS_LIST
1663 $TOOLCHAIN_FEATURES
1664 $TYPES_LIST
1665 atomics_native
1666 dos_paths
1667 dxva2_lib
1668 libc_msvcrt
1669 libdc1394_1
1670 libdc1394_2
1671 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1672 sdl
1673 section_data_rel_ro
1674 threads
1675 vaapi_drm
1676 vaapi_x11
1677 vdpau_x11
1678 xlib
1679 "
1680
1681 # options emitted with CONFIG_ prefix but not available on the command line
1682 CONFIG_EXTRA="
1683 aandcttables
1684 ac3dsp
1685 audio_frame_queue
1686 audiodsp
1687 blockdsp
1688 bswapdsp
1689 cabac
1690 dirac_parse
1691 dvprofile
1692 faandct
1693 faanidct
1694 fdctdsp
1695 flacdsp
1696 fmtconvert
1697 g722dsp
1698 gcrypt
1699 gmp
1700 golomb
1701 gplv3
1702 h263dsp
1703 h264chroma
1704 h264dsp
1705 h264parse
1706 h264pred
1707 h264qpel
1708 hpeldsp
1709 huffman
1710 huffyuvdsp
1711 huffyuvencdsp
1712 idctdsp
1713 iirfilter
1714 imdct15
1715 intrax8
1716 iso_media
1717 ividsp
1718 jpegtables
1719 libx262
1720 lgplv3
1721 lpc
1722 lzf
1723 me_cmp
1724 mpeg_er
1725 mpegaudio
1726 mpegaudiodsp
1727 mpegvideo
1728 mpegvideoenc
1729 mss34dsp
1730 pixblockdsp
1731 qpeldsp
1732 qsv
1733 qsvdec
1734 qsvenc
1735 rangecoder
1736 riffdec
1737 riffenc
1738 rtpdec
1739 rtpenc_chain
1740 rv34dsp
1741 sinewin
1742 snappy
1743 srtp
1744 startcode
1745 texturedsp
1746 texturedspenc
1747 tpeldsp
1748 vaapi_encode
1749 vc1dsp
1750 videodsp
1751 vp3dsp
1752 vp56dsp
1753 vp8dsp
1754 wma_freqs
1755 wmv2dsp
1756 "
1757
1758 CMDLINE_SELECT="
1759 $ARCH_EXT_LIST
1760 $CONFIG_LIST
1761 $HAVE_LIST_CMDLINE
1762 $THREADS_LIST
1763 asm
1764 cross_compile
1765 debug
1766 extra_warnings
1767 logging
1768 lto
1769 optimizations
1770 rpath
1771 "
1772
1773 PATHS_LIST="
1774 bindir
1775 datadir
1776 docdir
1777 incdir
1778 libdir
1779 mandir
1780 prefix
1781 shlibdir
1782 "
1783
1784 CMDLINE_SET="
1785 $PATHS_LIST
1786 ar
1787 arch
1788 as
1789 build_suffix
1790 cc
1791 objcc
1792 cpu
1793 cross_prefix
1794 custom_allocator
1795 dep_cc
1796 env
1797 extra_version
1798 host_cc
1799 host_cflags
1800 host_ld
1801 host_ldflags
1802 host_libs
1803 host_os
1804 ld
1805 logfile
1806 malloc_prefix
1807 nm
1808 optflags
1809 pkg_config
1810 pkg_config_flags
1811 random_seed
1812 samples
1813 sysinclude
1814 sysroot
1815 target_exec
1816 target_os
1817 target_path
1818 target_samples
1819 toolchain
1820 "
1821
1822 CMDLINE_APPEND="
1823 extra_cflags
1824 extra_objcflags
1825 host_cppflags
1826 "
1827
1828 # code dependency declarations
1829
1830 # architecture extensions
1831
1832 armv5te_deps="arm"
1833 armv6_deps="arm"
1834 armv6t2_deps="arm"
1835 armv8_deps="aarch64"
1836 neon_deps_any="aarch64 arm"
1837 intrinsics_neon_deps="neon"
1838 vfp_deps_any="aarch64 arm"
1839 vfpv3_deps="vfp"
1840
1841 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1842
1843 altivec_deps="ppc"
1844 ppc4xx_deps="ppc"
1845 vsx_deps="altivec"
1846 power8_deps="vsx"
1847
1848 cpunop_deps="i686"
1849 x86_64_select="i686"
1850 x86_64_suggest="fast_cmov"
1851
1852 amd3dnow_deps="mmx"
1853 amd3dnowext_deps="amd3dnow"
1854 i686_deps="x86"
1855 mmx_deps="x86"
1856 mmxext_deps="mmx"
1857 sse_deps="mmxext"
1858 sse2_deps="sse"
1859 sse3_deps="sse2"
1860 ssse3_deps="sse3"
1861 sse4_deps="ssse3"
1862 sse42_deps="sse4"
1863 avx_deps="sse42"
1864 xop_deps="avx"
1865 fma3_deps="avx"
1866 fma4_deps="avx"
1867 avx2_deps="avx"
1868
1869 mmx_external_deps="yasm"
1870 mmx_inline_deps="inline_asm"
1871 mmx_suggest="mmx_external mmx_inline"
1872
1873 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1874 eval dep=\$${ext}_deps
1875 eval ${ext}_external_deps='"${dep}_external"'
1876 eval ${ext}_inline_deps='"${dep}_inline"'
1877 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1878 done
1879
1880 aligned_stack_if_any="aarch64 ppc x86"
1881 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1882 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1883 fast_unaligned_if_any="aarch64 ppc x86"
1884 simd_align_16_if_any="altivec neon sse"
1885 simd_align_32_if_any="avx"
1886
1887 # system capabilities
1888 symver_if_any="symver_asm_label symver_gnu_asm"
1889 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1890
1891 # threading support
1892 atomics_gcc_if="sync_val_compare_and_swap"
1893 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1894 atomics_win32_if="MemoryBarrier"
1895 atomics_native_if_any="$ATOMICS_LIST"
1896 w32threads_deps="atomics_native"
1897 threads_if_any="$THREADS_LIST"
1898
1899 # subsystems
1900 dct_select="rdft"
1901 dirac_parse_select="golomb"
1902 error_resilience_select="me_cmp"
1903 faandct_deps="faan fdctdsp"
1904 faanidct_deps="faan idctdsp"
1905 h264dsp_select="startcode"
1906 intrax8_select="blockdsp idctdsp"
1907 mdct_select="fft"
1908 rdft_select="fft"
1909 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1910 mpeg_er_select="error_resilience"
1911 mpegaudio_select="mpegaudiodsp"
1912 mpegaudiodsp_select="dct"
1913 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1914 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1915 vc1dsp_select="h264chroma qpeldsp startcode"
1916
1917 # decoders / encoders
1918 aac_decoder_select="imdct15 mdct sinewin"
1919 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1920 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1921 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1922 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1923 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1924 adpcm_g722_decoder_select="g722dsp"
1925 adpcm_g722_encoder_select="g722dsp"
1926 aic_decoder_select="golomb idctdsp"
1927 alac_encoder_select="lpc"
1928 als_decoder_select="bswapdsp"
1929 amrnb_decoder_select="lsp"
1930 amrwb_decoder_select="lsp"
1931 amv_decoder_select="sp5x_decoder"
1932 ape_decoder_select="bswapdsp"
1933 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1934 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1935 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1936 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1937 atrac1_decoder_select="mdct sinewin"
1938 atrac3_decoder_select="mdct"
1939 atrac3p_decoder_select="mdct sinewin"
1940 bink_decoder_select="blockdsp hpeldsp"
1941 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1942 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1943 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1944 cllc_decoder_select="bswapdsp"
1945 comfortnoise_encoder_select="lpc"
1946 cook_decoder_select="audiodsp mdct sinewin"
1947 cscd_decoder_select="lzo"
1948 cscd_decoder_suggest="zlib"
1949 dca_decoder_select="fmtconvert mdct"
1950 dds_decoder_select="texturedsp"
1951 dnxhd_decoder_select="blockdsp idctdsp"
1952 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1953 dvvideo_decoder_select="dvprofile idctdsp"
1954 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1955 dxa_decoder_deps="zlib"
1956 dxv_decoder_select="lzf texturedsp"
1957 eac3_decoder_select="ac3_decoder"
1958 eac3_encoder_select="ac3_encoder"
1959 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1960 eatgq_decoder_select="aandcttables idctdsp"
1961 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1962 exr_decoder_deps="zlib"
1963 ffv1_decoder_select="golomb rangecoder"
1964 ffv1_encoder_select="rangecoder"
1965 ffvhuff_decoder_select="huffyuv_decoder"
1966 ffvhuff_encoder_select="huffyuv_encoder"
1967 fic_decoder_select="golomb"
1968 flac_decoder_select="flacdsp golomb"
1969 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1970 flashsv_decoder_deps="zlib"
1971 flashsv_encoder_deps="zlib"
1972 flashsv2_decoder_deps="zlib"
1973 flv_decoder_select="h263_decoder"
1974 flv_encoder_select="h263_encoder"
1975 fourxm_decoder_select="blockdsp bswapdsp"
1976 fraps_decoder_select="bswapdsp huffman"
1977 g2m_decoder_deps="zlib"
1978 g2m_decoder_select="blockdsp idctdsp jpegtables"
1979 h261_decoder_select="mpeg_er mpegvideo"
1980 h261_encoder_select="aandcttables mpegvideoenc"
1981 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1982 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1983 h263i_decoder_select="h263_decoder"
1984 h263p_encoder_select="h263_encoder"
1985 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1986 h264_decoder_suggest="error_resilience"
1987 hap_decoder_select="snappy texturedsp"
1988 hap_encoder_deps="libsnappy"
1989 hap_encoder_select="texturedspenc"
1990 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1991 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1992 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1993 iac_decoder_select="imc_decoder"
1994 imc_decoder_select="bswapdsp fft mdct sinewin"
1995 indeo3_decoder_select="hpeldsp"
1996 indeo4_decoder_select="ividsp"
1997 indeo5_decoder_select="ividsp"
1998 interplay_video_decoder_select="hpeldsp"
1999 jpegls_decoder_select="golomb mjpeg_decoder"
2000 jpegls_encoder_select="golomb"
2001 jv_decoder_select="blockdsp"
2002 lagarith_decoder_select="huffyuvdsp"
2003 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2004 loco_decoder_select="golomb"
2005 magicyuv_decoder_select="huffyuvdsp"
2006 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2007 metasound_decoder_select="lsp mdct sinewin"
2008 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2009 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2010 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2011 mjpegb_decoder_select="mjpeg_decoder"
2012 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2013 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2014 mlp_decoder_select="mlp_parser"
2015 motionpixels_decoder_select="bswapdsp"
2016 mp1_decoder_select="mpegaudio"
2017 mp1float_decoder_select="mpegaudio"
2018 mp2_decoder_select="mpegaudio"
2019 mp2float_decoder_select="mpegaudio"
2020 mp3_decoder_select="mpegaudio"
2021 mp3adu_decoder_select="mpegaudio"
2022 mp3adufloat_decoder_select="mpegaudio"
2023 mp3float_decoder_select="mpegaudio"
2024 mp3on4_decoder_select="mpegaudio"
2025 mp3on4float_decoder_select="mpegaudio"
2026 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2027 mpc8_decoder_select="mpegaudiodsp"
2028 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2029 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2030 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2031 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2032 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2033 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2034 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2035 mpeg4_encoder_select="h263_encoder"
2036 msa1_decoder_select="mss34dsp"
2037 msmpeg4v1_decoder_select="h263_decoder"
2038 msmpeg4v2_decoder_select="h263_decoder"
2039 msmpeg4v2_encoder_select="h263_encoder"
2040 msmpeg4v3_decoder_select="h263_decoder"
2041 msmpeg4v3_encoder_select="h263_encoder"
2042 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2043 mts2_decoder_select="mss34dsp"
2044 mxpeg_decoder_select="mjpeg_decoder"
2045 nellymoser_decoder_select="mdct sinewin"
2046 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2047 nuv_decoder_select="idctdsp lzo"
2048 on2avc_decoder_select="mdct"
2049 opus_decoder_deps="avresample"
2050 opus_decoder_select="imdct15"
2051 png_decoder_deps="zlib"
2052 png_encoder_deps="zlib"
2053 png_encoder_select="huffyuvencdsp"
2054 prores_decoder_select="idctdsp"
2055 prores_encoder_select="fdctdsp"
2056 qcelp_decoder_select="lsp"
2057 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2058 ra_144_encoder_select="audio_frame_queue lpc"
2059 ralf_decoder_select="golomb"
2060 rscc_decoder_deps="zlib"
2061 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2062 rv10_encoder_select="h263_encoder"
2063 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2064 rv20_encoder_select="h263_encoder"
2065 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2066 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2067 screenpresso_decoder_deps="zlib"
2068 shorten_decoder_select="golomb"
2069 sipr_decoder_select="lsp"
2070 sp5x_decoder_select="mjpeg_decoder"
2071 svq1_decoder_select="hpeldsp"
2072 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2073 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2074 svq3_decoder_suggest="zlib"
2075 tak_decoder_select="audiodsp"
2076 tdsc_decoder_deps="zlib"
2077 tdsc_decoder_select="mjpeg_decoder"
2078 theora_decoder_select="vp3_decoder"
2079 thp_decoder_select="mjpeg_decoder"
2080 tiff_decoder_suggest="zlib"
2081 tiff_encoder_suggest="zlib"
2082 truehd_decoder_select="mlp_decoder"
2083 truemotion2_decoder_select="bswapdsp"
2084 truespeech_decoder_select="bswapdsp"
2085 tscc_decoder_deps="zlib"
2086 txd_decoder_select="texturedsp"
2087 twinvq_decoder_select="mdct lsp sinewin"
2088 utvideo_decoder_select="bswapdsp"
2089 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2090 vble_decoder_select="huffyuvdsp"
2091 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2092 vc1image_decoder_select="vc1_decoder"
2093 vorbis_decoder_select="mdct"
2094 vorbis_encoder_select="mdct"
2095 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2096 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2097 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2098 vp6a_decoder_select="vp6_decoder"
2099 vp6f_decoder_select="vp6_decoder"
2100 vp7_decoder_select="h264pred videodsp vp8dsp"
2101 vp8_decoder_select="h264pred videodsp vp8dsp"
2102 vp9_decoder_select="videodsp"
2103 webp_decoder_select="vp8_decoder"
2104 wmapro_decoder_select="mdct sinewin wma_freqs"
2105 wmav1_decoder_select="mdct sinewin wma_freqs"
2106 wmav1_encoder_select="mdct sinewin wma_freqs"
2107 wmav2_decoder_select="mdct sinewin wma_freqs"
2108 wmav2_encoder_select="mdct sinewin wma_freqs"
2109 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2110 wmv1_decoder_select="h263_decoder"
2111 wmv1_encoder_select="h263_encoder"
2112 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2113 wmv2_encoder_select="h263_encoder wmv2dsp"
2114 wmv3_decoder_select="vc1_decoder"
2115 wmv3image_decoder_select="wmv3_decoder"
2116 zerocodec_decoder_deps="zlib"
2117 zlib_decoder_deps="zlib"
2118 zlib_encoder_deps="zlib"
2119 zmbv_decoder_deps="zlib"
2120 zmbv_encoder_deps="zlib"
2121
2122 # hardware accelerators
2123 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2124 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2125 vaapi_deps="va_va_h"
2126 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2127 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2128 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2129
2130 h263_vaapi_hwaccel_deps="vaapi"
2131 h263_vaapi_hwaccel_select="h263_decoder"
2132 h264_d3d11va_hwaccel_deps="d3d11va"
2133 h264_d3d11va_hwaccel_select="h264_decoder"
2134 h264_dxva2_hwaccel_deps="dxva2"
2135 h264_dxva2_hwaccel_select="h264_decoder"
2136 h264_mmal_decoder_deps="mmal"
2137 h264_mmal_decoder_select="mmal"
2138 h264_mmal_hwaccel_deps="mmal"
2139 h264_omx_encoder_deps="omx"
2140 h264_qsv_hwaccel_deps="libmfx"
2141 h264_vaapi_hwaccel_deps="vaapi"
2142 h264_vaapi_hwaccel_select="h264_decoder"
2143 h264_vda_hwaccel_deps="vda"
2144 h264_vda_hwaccel_select="h264_decoder"
2145 h264_vda_old_hwaccel_deps="vda"
2146 h264_vda_old_hwaccel_select="h264_decoder"
2147 h264_vdpau_hwaccel_deps="vdpau"
2148 h264_vdpau_hwaccel_select="h264_decoder"
2149 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2150 hevc_d3d11va_hwaccel_select="hevc_decoder"
2151 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2152 hevc_dxva2_hwaccel_select="hevc_decoder"
2153 hevc_qsv_hwaccel_deps="libmfx"
2154 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2155 hevc_vdpau_hwaccel_select="hevc_decoder"
2156 mpeg1_vdpau_hwaccel_deps="vdpau"
2157 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2158 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2159 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2160 mpeg2_dxva2_hwaccel_deps="dxva2"
2161 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2162 mpeg2_mmal_decoder_deps="mmal"
2163 mpeg2_mmal_decoder_select="mmal"
2164 mpeg2_mmal_hwaccel_deps="mmal"
2165 mpeg2_qsv_hwaccel_deps="libmfx"
2166 mpeg2_vaapi_hwaccel_deps="vaapi"
2167 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2168 mpeg2_vdpau_hwaccel_deps="vdpau"
2169 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2170 mpeg4_omx_encoder_deps="omx"
2171 mpeg4_vaapi_hwaccel_deps="vaapi"
2172 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2173 mpeg4_vdpau_hwaccel_deps="vdpau"
2174 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2175 vc1_d3d11va_hwaccel_deps="d3d11va"
2176 vc1_d3d11va_hwaccel_select="vc1_decoder"
2177 vc1_dxva2_hwaccel_deps="dxva2"
2178 vc1_dxva2_hwaccel_select="vc1_decoder"
2179 vc1_mmal_decoder_deps="mmal"
2180 vc1_mmal_decoder_select="mmal"
2181 vc1_mmal_hwaccel_deps="mmal"
2182 vc1_vaapi_hwaccel_deps="vaapi"
2183 vc1_vaapi_hwaccel_select="vc1_decoder"
2184 vc1_vdpau_hwaccel_deps="vdpau"
2185 vc1_vdpau_hwaccel_select="vc1_decoder"
2186 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2187 vp8_vaapi_hwaccel_select="vp8_decoder"
2188 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2189 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2190 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2191 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2192
2193 # hardware-accelerated codecs
2194 nvenc_deps_any="dlopen LoadLibrary"
2195 nvenc_extralibs='$ldl'
2196 omx_deps="dlopen pthreads"
2197 omx_extralibs='$ldl'
2198 qsvdec_select="qsv"
2199 qsvenc_select="qsv"
2200 vaapi_encode_deps="vaapi"
2201
2202 hwupload_cuda_filter_deps="cuda"
2203 scale_npp_filter_deps="cuda libnpp"
2204
2205 h264_nvenc_encoder_deps="nvenc"
2206 h264_qsv_decoder_deps="libmfx"
2207 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2208 h264_qsv_encoder_deps="libmfx"
2209 h264_qsv_encoder_select="qsvenc"
2210 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2211 h264_vaapi_encoder_select="vaapi_encode golomb"
2212
2213 hevc_nvenc_encoder_deps="nvenc"
2214 hevc_qsv_decoder_deps="libmfx"
2215 hevc_qsv_encoder_deps="libmfx"
2216 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2217 hevc_qsv_encoder_select="qsvenc"
2218 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2219 hevc_vaapi_encoder_select="vaapi_encode golomb"
2220 mpeg2_qsv_decoder_deps="libmfx"
2221 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2222 mpeg2_qsv_encoder_deps="libmfx"
2223 mpeg2_qsv_encoder_select="qsvenc"
2224
2225 nvenc_h264_encoder_deps="nvenc"
2226 nvenc_hevc_encoder_deps="nvenc"
2227
2228 # parsers
2229 h264_parser_select="golomb h264dsp h264parse"
2230 hevc_parser_select="golomb"
2231 mpegvideo_parser_select="mpegvideo"
2232 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2233 vc1_parser_select="vc1dsp"
2234
2235 # bitstream_filters
2236 mjpeg2jpeg_bsf_select="jpegtables"
2237
2238 # external libraries
2239 libdcadec_decoder_deps="libdcadec"
2240 libfaac_encoder_deps="libfaac"
2241 libfaac_encoder_select="audio_frame_queue"
2242 libfdk_aac_decoder_deps="libfdk_aac"
2243 libfdk_aac_encoder_deps="libfdk_aac"
2244 libfdk_aac_encoder_select="audio_frame_queue"
2245 libgsm_decoder_deps="libgsm"
2246 libgsm_encoder_deps="libgsm"
2247 libgsm_ms_decoder_deps="libgsm"
2248 libgsm_ms_encoder_deps="libgsm"
2249 libilbc_decoder_deps="libilbc"
2250 libilbc_encoder_deps="libilbc"
2251 libkvazaar_encoder_deps="libkvazaar"
2252 libmp3lame_encoder_deps="libmp3lame"
2253 libmp3lame_encoder_select="audio_frame_queue"
2254 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2255 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2256 libopencore_amrnb_encoder_select="audio_frame_queue"
2257 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2258 libopenh264_decoder_deps="libopenh264"
2259 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2260 libopenh264_encoder_deps="libopenh264"
2261 libopenjpeg_decoder_deps="libopenjpeg"
2262 libopenjpeg_encoder_deps="libopenjpeg"
2263 libopus_decoder_deps="libopus"
2264 libopus_encoder_deps="libopus"
2265 libopus_encoder_select="audio_frame_queue"
2266 libschroedinger_decoder_deps="libschroedinger"
2267 libschroedinger_encoder_deps="libschroedinger"
2268 libspeex_decoder_deps="libspeex"
2269 libspeex_encoder_deps="libspeex"
2270 libspeex_encoder_select="audio_frame_queue"
2271 libtheora_encoder_deps="libtheora"
2272 libtwolame_encoder_deps="libtwolame"
2273 libvo_aacenc_encoder_deps="libvo_aacenc"
2274 libvo_aacenc_encoder_select="audio_frame_queue"
2275 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2276 libvorbis_encoder_deps="libvorbis"
2277 libvorbis_encoder_select="audio_frame_queue"
2278 libvpx_vp8_decoder_deps="libvpx"
2279 libvpx_vp8_encoder_deps="libvpx"
2280 libvpx_vp9_decoder_deps="libvpx"
2281 libvpx_vp9_encoder_deps="libvpx"
2282 libwavpack_encoder_deps="libwavpack"
2283 libwebp_encoder_deps="libwebp"
2284 libx262_encoder_deps="libx262"
2285 libx264_encoder_deps="libx264"
2286 libx265_encoder_deps="libx265"
2287 libxavs_encoder_deps="libxavs"
2288 libxvid_encoder_deps="libxvid"
2289
2290 # demuxers / muxers
2291 ac3_demuxer_select="ac3_parser"
2292 asf_demuxer_select="riffdec"
2293 asf_muxer_select="riffenc"
2294 asf_stream_muxer_select="asf_muxer"
2295 avi_demuxer_select="iso_media riffdec"
2296 avi_muxer_select="riffenc"
2297 avisynth_demuxer_deps="avisynth"
2298 avisynth_demuxer_select="riffdec"
2299 caf_demuxer_select="iso_media riffdec"
2300 dash_muxer_select="mp4_muxer"
2301 dirac_demuxer_select="dirac_parser"
2302 dv_demuxer_select="dvprofile"
2303 dv_muxer_select="dvprofile"
2304 dxa_demuxer_select="riffdec"
2305 eac3_demuxer_select="ac3_parser"
2306 f4v_muxer_select="mov_muxer"
2307 flac_demuxer_select="flac_parser"
2308 hds_muxer_select="flv_muxer"
2309 hls_muxer_select="mpegts_muxer"
2310 ipod_muxer_select="mov_muxer"
2311 ismv_muxer_select="mov_muxer"
2312 matroska_audio_muxer_select="matroska_muxer"
2313 matroska_demuxer_select="iso_media riffdec"
2314 matroska_demuxer_suggest="bzlib lzo zlib"
2315 matroska_muxer_select="iso_media riffenc"
2316 mmf_muxer_select="riffenc"
2317 mov_demuxer_select="iso_media riffdec"
2318 mov_demuxer_suggest="zlib"
2319 mov_muxer_select="iso_media riffenc rtpenc_chain"
2320 mp3_demuxer_select="mpegaudio_parser"
2321 mp4_muxer_select="mov_muxer"
2322 mpegts_demuxer_select="iso_media"
2323 mpegts_muxer_select="adts_muxer latm_muxer"
2324 mpegtsraw_demuxer_select="mpegts_demuxer"
2325 mxf_d10_muxer_select="mxf_muxer"
2326 nut_muxer_select="riffenc"
2327 nuv_demuxer_select="riffdec"
2328 oga_muxer_select="ogg_muxer"
2329 ogg_demuxer_select="dirac_parse"
2330 opus_muxer_select="ogg_muxer"
2331 psp_muxer_select="mov_muxer"
2332 rtp_demuxer_select="sdp_demuxer"
2333 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2334 rtsp_demuxer_select="http_protocol rtpdec"
2335 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2336 sap_demuxer_select="sdp_demuxer"
2337 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2338 sdp_demuxer_select="rtpdec"
2339 smoothstreaming_muxer_select="ismv_muxer"
2340 spdif_muxer_select="aac_parser"
2341 spx_muxer_select="ogg_muxer"
2342 swf_demuxer_suggest="zlib"
2343 tak_demuxer_select="tak_parser"
2344 tg2_muxer_select="mov_muxer"
2345 tgp_muxer_select="mov_muxer"
2346 w64_demuxer_select="wav_demuxer"
2347 wav_demuxer_select="riffdec"
2348 wav_muxer_select="riffenc"
2349 webm_muxer_select="iso_media riffenc"
2350 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2351 wtv_demuxer_select="mpegts_demuxer riffdec"
2352 xmv_demuxer_select="riffdec"
2353 xwma_demuxer_select="riffdec"
2354
2355 # indevs / outdevs
2356 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2357 alsa_outdev_deps="alsa_asoundlib_h"
2358 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2359 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2360 dv1394_indev_deps="dv1394"
2361 dv1394_indev_select="dv_demuxer"
2362 fbdev_indev_deps="linux_fb_h"
2363 jack_indev_deps="jack_jack_h"
2364 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2365 libcdio_indev_deps="libcdio"
2366 libdc1394_indev_deps="libdc1394"
2367 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2368 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2369 pulse_indev_deps="libpulse"
2370 sndio_indev_deps="sndio_h"
2371 sndio_outdev_deps="sndio_h"
2372 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2373 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2374 vfwcap_indev_extralibs="-lavicap32"
2375 xcbgrab_indev_deps="libxcb"
2376
2377 # protocols
2378 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2379 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2380 ffrtmpcrypt_protocol_select="tcp_protocol"
2381 ffrtmphttp_protocol_deps="!librtmp_protocol"
2382 ffrtmphttp_protocol_select="http_protocol"
2383 gopher_protocol_select="network"
2384 http_protocol_select="tcp_protocol"
2385 httpproxy_protocol_select="tcp_protocol"
2386 https_protocol_select="tls_protocol"
2387 icecast_protocol_select="http_protocol"
2388 librtmp_protocol_deps="librtmp"
2389 librtmpe_protocol_deps="librtmp"
2390 librtmps_protocol_deps="librtmp"
2391 librtmpt_protocol_deps="librtmp"
2392 librtmpte_protocol_deps="librtmp"
2393 mmsh_protocol_select="http_protocol"
2394 mmst_protocol_select="network"
2395 rtmp_protocol_deps="!librtmp_protocol"
2396 rtmp_protocol_select="tcp_protocol"
2397 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2398 rtmps_protocol_deps="!librtmp_protocol"
2399 rtmps_protocol_select="tls_protocol"
2400 rtmpt_protocol_select="ffrtmphttp_protocol"
2401 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2402 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2403 rtp_protocol_select="udp_protocol"
2404 sctp_protocol_deps="struct_sctp_event_subscribe"
2405 sctp_protocol_select="network"
2406 srtp_protocol_select="rtp_protocol srtp"
2407 tcp_protocol_select="network"
2408 tls_gnutls_protocol_deps="gnutls"
2409 tls_gnutls_protocol_select="tcp_protocol"
2410 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2411 tls_openssl_protocol_select="tcp_protocol"
2412 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2413 udp_protocol_select="network"
2414 unix_protocol_deps="sys_un_h"
2415 unix_protocol_select="network"
2416
2417 # filters
2418 blackframe_filter_deps="gpl"
2419 boxblur_filter_deps="gpl"
2420 bs2b_filter_deps="libbs2b"
2421 cropdetect_filter_deps="gpl"
2422 deinterlace_qsv_filter_deps="libmfx"
2423 delogo_filter_deps="gpl"
2424 drawtext_filter_deps="libfreetype"
2425 frei0r_filter_deps="frei0r dlopen"
2426 frei0r_filter_extralibs='$ldl'
2427 frei0r_src_filter_deps="frei0r dlopen"
2428 frei0r_src_filter_extralibs='$ldl'
2429 hdcd_filter_deps="libhdcd"
2430 hqdn3d_filter_deps="gpl"
2431 interlace_filter_deps="gpl"
2432 ocv_filter_deps="libopencv"
2433 resample_filter_deps="avresample"
2434 scale_filter_deps="swscale"
2435 scale_qsv_filter_deps="libmfx"
2436 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2437
2438 # examples
2439 avcodec_example_deps="avcodec avutil"
2440 filter_audio_example_deps="avfilter avutil"
2441 metadata_example_deps="avformat avutil"
2442 output_example_deps="avcodec avformat avutil swscale"
2443 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2444 transcode_aac_example_deps="avcodec avformat avresample"
2445
2446 # libraries, in linking order
2447 avcodec_deps="avutil"
2448 avdevice_deps="avformat avcodec avutil"
2449 avfilter_deps="avutil"
2450 avformat_deps="avcodec avutil"
2451 avresample_deps="avutil"
2452 swscale_deps="avutil"
2453
2454 # programs
2455 avconv_deps="avcodec avfilter avformat avresample swscale"
2456 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2457 fps_filter null_filter resample_filter scale_filter
2458 trim_filter"
2459 avplay_deps="avcodec avfilter avformat avresample sdl"
2460 avplay_libs='$sdl_libs'
2461 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2462 avprobe_deps="avcodec avformat"
2463
2464 # documentation
2465 pod2man_deps="doc"
2466 texi2html_deps="doc"
2467
2468 # default parameters
2469
2470 logfile="config.log"
2471
2472 # installation paths
2473 prefix_default="/usr/local"
2474 bindir_default='${prefix}/bin'
2475 datadir_default='${prefix}/share/avconv'
2476 docdir_default='${prefix}/share/doc/libav'
2477 incdir_default='${prefix}/include'
2478 libdir_default='${prefix}/lib'
2479 mandir_default='${prefix}/share/man'
2480 shlibdir_default="$libdir_default"
2481
2482 # toolchain
2483 ar_default="ar"
2484 cc_default="gcc"
2485 host_cc_default="gcc"
2486 cp_f="cp -f"
2487 ln_s="ln -s -f"
2488 nm_default="nm -g"
2489 objformat="elf"
2490 pkg_config_default=pkg-config
2491 ranlib="ranlib"
2492 strip="strip"
2493 version_script='--version-script'
2494 yasmexe="yasm"
2495
2496 # machine
2497 arch_default=$(uname -m)
2498 cpu="generic"
2499 intrinsics="none"
2500
2501 # OS
2502 target_os_default=$(tolower $(uname -s))
2503 host_os=$target_os_default
2504
2505 # configurable options
2506 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2507
2508 enable asm
2509 enable debug
2510 enable doc
2511 enable faan faandct faanidct
2512 enable optimizations
2513 enable safe_bitstream_reader
2514 enable static
2515 enable swscale_alpha
2516 enable valgrind_backtrace
2517
2518 # By default, enable only those hwaccels that have no external dependencies.
2519 enable d3d11va dxva2 vda vdpau
2520
2521 # build settings
2522 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2523 LIBPREF="lib"
2524 LIBSUF=".a"
2525 FULLNAME='$(NAME)$(BUILDSUF)'
2526 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2527 SLIBPREF="lib"
2528 SLIBSUF=".so"
2529 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2530 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2531 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2532 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2533 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2534 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2535 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2536
2537 asflags_filter=echo
2538 cflags_filter=echo
2539 ldflags_filter=echo
2540
2541 AS_C='-c'
2542 AS_O='-o $@'
2543 CC_C='-c'
2544 CC_E='-E -o $@'
2545 CC_O='-o $@'
2546 OBJCC_C='-c'
2547 OBJCC_E='-E -o $@'
2548 OBJCC_O='-o $@'
2549 LD_O='-o $@'
2550 LD_LIB='-l%'
2551 LD_PATH='-L'
2552 HOSTCC_C='-c'
2553 HOSTCC_E='-E -o $@'
2554 HOSTCC_O='-o $@'
2555 HOSTLD_O='-o $@'
2556
2557 host_libs='-lm'
2558 host_cflags_filter=echo
2559 host_ldflags_filter=echo
2560
2561 target_path='$(CURDIR)'
2562
2563 # since the object filename is not given with the -MM flag, the compiler
2564 # is only able to print the basename, and we must add the path ourselves
2565 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2566 DEPFLAGS='-MM'
2567
2568 # find source path
2569 if test -f configure; then
2570 source_path=.
2571 else
2572 source_path=$(cd $(dirname "$0"); pwd)
2573 echo "$source_path" | grep -q '[[:blank:]]' &&
2574 die "Out of tree builds are impossible with whitespace in source path."
2575 test -e "$source_path/config.h" &&
2576 die "Out of tree builds are impossible with config.h in source dir."
2577 fi
2578
2579 for v in "$@"; do
2580 r=${v#*=}
2581 l=${v%"$r"}
2582 r=$(sh_quote "$r")
2583 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2584 done
2585
2586 find_things(){
2587 thing=$1
2588 pattern=$2
2589 file=$source_path/$3
2590 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2591 }
2592
2593 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2594 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2595 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2596 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2597 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2598 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2599 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2600 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2601 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2602
2603 find_things_extern(){
2604 thing=$1
2605 pattern=$2
2606 file=$source_path/$3
2607 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2608 }
2609
2610 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2611 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2612
2613 ALL_COMPONENTS="
2614 $BSF_LIST
2615 $DECODER_LIST
2616 $DEMUXER_LIST
2617 $ENCODER_LIST
2618 $FILTER_LIST
2619 $HWACCEL_LIST
2620 $INDEV_LIST
2621 $MUXER_LIST
2622 $OUTDEV_LIST
2623 $PARSER_LIST
2624 $PROTOCOL_LIST
2625 "
2626
2627 for n in $COMPONENT_LIST; do
2628 v=$(toupper ${n%s})_LIST
2629 eval enable \$$v
2630 eval ${n}_if_any="\$$v"
2631 done
2632
2633 enable $ARCH_EXT_LIST
2634
2635 die_unknown(){
2636 echo "Unknown option \"$1\"."
2637 echo "See $0 --help for available options."
2638 exit 1
2639 }
2640
2641 print_3_columns() {
2642 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2643 }
2644
2645 show_list() {
2646 suffix=_$1
2647 shift
2648 echo $* | sed s/$suffix//g | print_3_columns
2649 exit 0
2650 }
2651
2652 rand_list(){
2653 IFS=', '
2654 set -- $*
2655 unset IFS
2656 for thing; do
2657 comp=${thing%:*}
2658 prob=${thing#$comp}
2659 prob=${prob#:}
2660 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2661 echo "prob ${prob:-0.5}"
2662 printf '%s\n' $comp
2663 done
2664 }
2665
2666 do_random(){
2667 action=$1
2668 shift
2669 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2670 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2671 }
2672
2673 for opt do
2674 optval="${opt#*=}"
2675 case "$opt" in
2676 --extra-ldflags=*)
2677 add_ldflags $optval
2678 ;;
2679 --extra-ldexeflags=*)
2680 add_ldexeflags $optval
2681 ;;
2682 --extra-libs=*)
2683 add_extralibs $optval
2684 ;;
2685 --disable-devices)
2686 disable $INDEV_LIST $OUTDEV_LIST
2687 ;;
2688 --enable-debug=*)
2689 debuglevel="$optval"
2690 ;;
2691 --disable-programs)
2692 disable $PROGRAM_LIST
2693 ;;
2694 --disable-everything)
2695 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2696 ;;
2697 --disable-all)
2698 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2699 disable $LIBRARY_LIST $PROGRAM_LIST doc
2700 ;;
2701 --enable-random|--disable-random)
2702 action=${opt%%-random}
2703 do_random ${action#--} $COMPONENT_LIST
2704 ;;
2705 --enable-random=*|--disable-random=*)
2706 action=${opt%%-random=*}
2707 do_random ${action#--} $optval
2708 ;;
2709 --enable-*=*|--disable-*=*)
2710 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2711 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2712 eval list=\$$(toupper $thing)_LIST
2713 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2714 $action $(filter "$name" $list)
2715 ;;
2716 --enable-avserver|--disable-avserver*)
2717 warn "avserver has been removed, the ${opt} option is only"\
2718 "provided for compatibility and will be removed in the future"
2719 ;;
2720 --enable-?*|--disable-?*)
2721 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2722 if is_in $option $COMPONENT_LIST; then
2723 test $action = disable && action=unset
2724 eval $action \$$(toupper ${option%s})_LIST
2725 elif is_in $option $CMDLINE_SELECT; then
2726 $action $option
2727 else
2728 die_unknown $opt
2729 fi
2730 ;;
2731 --list-*)
2732 NAME="${opt#--list-}"
2733 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2734 NAME=${NAME%s}
2735 eval show_list $NAME \$$(toupper $NAME)_LIST
2736 ;;
2737 --help|-h) show_help
2738 ;;
2739 *)
2740 optname="${opt%%=*}"
2741 optname="${optname#--}"
2742 optname=$(echo "$optname" | sed 's/-/_/g')
2743 if is_in $optname $CMDLINE_SET; then
2744 eval $optname='$optval'
2745 elif is_in $optname $CMDLINE_APPEND; then
2746 append $optname "$optval"
2747 else
2748 die_unknown $opt
2749 fi
2750 ;;
2751 esac
2752 done
2753
2754 for e in $env; do
2755 eval "export $e"
2756 done
2757
2758 disabled logging && logfile=/dev/null
2759
2760 # Disable all the library-specific components if the library itself
2761 # is disabled, see AVCODEC_LIST and following _LIST variables.
2762
2763 disable_components(){
2764 disabled ${1} && disable $(
2765 eval components="\$$(toupper ${1})_COMPONENTS"
2766 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2767 )
2768 }
2769
2770 map 'disable_components $v' $LIBRARY_LIST
2771
2772 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2773 set >> $logfile
2774
2775 case "$toolchain" in
2776 *-asan)
2777 cc_default="${toolchain%-asan}"
2778 add_cflags -fsanitize=address
2779 add_ldflags -fsanitize=address
2780 ;;
2781 *-msan)
2782 cc_default="${toolchain%-msan}"
2783 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2784 add_ldflags -fsanitize=memory
2785 ;;
2786 *-tsan)
2787 cc_default="${toolchain%-tsan}"
2788 add_cflags -fsanitize=thread -pie
2789 add_ldflags -fsanitize=thread -pie
2790 case "$toolchain" in
2791 gcc-tsan)
2792 add_cflags -fPIC
2793 add_ldflags -fPIC
2794 ;;
2795 esac
2796 ;;
2797 *-usan)
2798 cc_default="${toolchain%-usan}"
2799 add_cflags -fsanitize=undefined
2800 add_ldflags -fsanitize=undefined
2801 case "$toolchain" in
2802 clang-usan)
2803 add_cflags -O1
2804 ;;
2805 esac
2806 ;;
2807 valgrind-*)
2808 target_exec_default="valgrind"
2809 case "$toolchain" in
2810 valgrind-massif)
2811 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2812 ;;
2813 valgrind-memcheck)
2814 target_exec_args="--track-origins=yes --leak-check=full"
2815 ;;
2816 esac
2817 ;;
2818 msvc)
2819 # Check whether the current MSVC version needs the C99 converter.
2820 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2821 # support enough of C99 to build libav. Default to the new
2822 # behaviour if the regexp was unable to match anything, since this
2823 # successfully parses the version number of existing supported
2824 # versions that require the converter (MSVC 2010 and 2012).
2825 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2826 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2827 cc_default="cl"
2828 else
2829 cc_default="c99wrap cl"
2830 fi
2831 ld_default="$source_path/compat/windows/mslink"
2832 nm_default="dumpbin -symbols"
2833 ar_default="lib"
2834 case "$arch" in
2835 arm*)
2836 as_default="armasm"
2837 ;;
2838 esac
2839 target_os_default="win32"
2840 # Use a relative path for TMPDIR. This makes sure all the
2841 # ffconf temp files are written with a relative path, avoiding
2842 # issues with msys/win32 path conversion for MSVC parameters
2843 # such as -Fo<file> or -out:<file>.
2844 TMPDIR=.
2845 ;;
2846 icl)
2847 cc_default="icl"
2848 ld_default="xilink"
2849 nm_default="dumpbin -symbols"
2850 ar_default="xilib"
2851 target_os_default="win32"
2852 TMPDIR=.
2853 ;;
2854 gcov)
2855 add_cflags -fprofile-arcs -ftest-coverage
2856 add_ldflags -fprofile-arcs -ftest-coverage
2857 ;;
2858 llvm-cov)
2859 add_cflags -fprofile-arcs -ftest-coverage
2860 add_ldflags --coverage
2861 ;;
2862 hardened)
2863 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2864 add_cflags -fno-strict-overflow -fstack-protector-all
2865 add_ldflags -Wl,-z,relro -Wl,-z,now
2866 ;;
2867 ?*)
2868 die "Unknown toolchain $toolchain"
2869 ;;
2870 esac
2871
2872 test -n "$cross_prefix" && enable cross_compile
2873
2874 if enabled cross_compile; then
2875 test -n "$arch" && test -n "$target_os" ||
2876 die "Must specify target arch and OS when cross-compiling"
2877 fi
2878
2879 ar_default="${cross_prefix}${ar_default}"
2880 cc_default="${cross_prefix}${cc_default}"
2881 occ_default="${cross_prefix}${occ_default}"
2882 nm_default="${cross_prefix}${nm_default}"
2883 pkg_config_default="${cross_prefix}${pkg_config_default}"
2884 ranlib="${cross_prefix}${ranlib}"
2885 strip="${cross_prefix}${strip}"
2886
2887 sysinclude_default="${sysroot}/usr/include"
2888
2889 set_default arch cc pkg_config sysinclude target_exec target_os
2890 enabled cross_compile || host_cc_default=$cc
2891 set_default host_cc
2892
2893 if ! $pkg_config --version >/dev/null 2>&1; then
2894 warn "$pkg_config not found, library detection may fail."
2895 pkg_config=false
2896 fi
2897
2898 exesuf() {
2899 case $1 in
2900 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2901 esac
2902 }
2903
2904 EXESUF=$(exesuf $target_os)
2905 HOSTEXESUF=$(exesuf $host_os)
2906
2907 # set temporary file name
2908 : ${TMPDIR:=$TEMPDIR}
2909 : ${TMPDIR:=$TMP}
2910 : ${TMPDIR:=/tmp}
2911
2912 if ! check_cmd mktemp -u XXXXXX; then
2913 # simple replacement for missing mktemp
2914 # NOT SAFE FOR GENERAL USE
2915 mktemp(){
2916 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2917 }
2918 fi
2919
2920 tmpfile(){
2921 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2922 (set -C; exec > $tmp) 2>/dev/null ||
2923 die "Unable to create temporary file in $TMPDIR."
2924 append TMPFILES $tmp
2925 eval $1=$tmp
2926 }
2927
2928 trap 'rm -f -- $TMPFILES' EXIT
2929
2930 tmpfile TMPASM .asm
2931 tmpfile TMPC .c
2932 tmpfile TMPE $EXESUF
2933 tmpfile TMPH .h
2934 tmpfile TMPO .o
2935 tmpfile TMPS .S
2936 tmpfile TMPSH .sh
2937 tmpfile TMPV .ver
2938
2939 unset -f mktemp
2940
2941 chmod +x $TMPE
2942
2943 # make sure we can execute files in $TMPDIR
2944 cat > $TMPSH 2>> $logfile <<EOF
2945 #! /bin/sh
2946 EOF
2947 chmod +x $TMPSH >> $logfile 2>&1
2948 if ! $TMPSH >> $logfile 2>&1; then
2949 cat <<EOF
2950 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2951 variable to another directory and make sure that it is not mounted noexec.
2952 EOF
2953 die "Sanity test failed."
2954 fi
2955
2956 armasm_flags(){
2957 for flag; do
2958 case $flag in
2959 # Filter out MSVC cl.exe options from cflags that shouldn't
2960 # be passed to gas-preprocessor
2961 -M[TD]*) ;;
2962 *) echo $flag ;;
2963 esac
2964 done
2965 }
2966
2967 ccc_flags(){
2968 for flag; do
2969 case $flag in
2970 -std=c99) echo -c99 ;;
2971 -mcpu=*) echo -arch ${flag#*=} ;;
2972 -mieee) echo -ieee ;;
2973 -O*|-fast) echo $flag ;;
2974 -fno-math-errno) echo -assume nomath_errno ;;
2975 -g) echo -g3 ;;
2976 -Wall) echo -msg_enable level2 ;;
2977 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2978 -Wl,*) echo $flag ;;
2979 -f*|-W*) ;;
2980 *) echo $flag ;;
2981 esac
2982 done
2983 }
2984
2985 cparser_flags(){
2986 for flag; do
2987 case $flag in
2988 -Wno-switch) echo -Wno-switch-enum ;;
2989 -Wno-format-zero-length) ;;
2990 -Wdisabled-optimization) ;;
2991 -Wno-pointer-sign) echo -Wno-other ;;
2992 *) echo $flag ;;
2993 esac
2994 done
2995 }
2996
2997 msvc_common_flags(){
2998 for flag; do
2999 case $flag in
3000 # In addition to specifying certain flags under the compiler
3001 # specific filters, they must be specified here as well or else the
3002 # generic catch all at the bottom will print the original flag.
3003 -Wall) ;;
3004 -std=c99) ;;
3005 # Common flags
3006 -fomit-frame-pointer) ;;
3007 -g) echo -Z7 ;;
3008 -fno-math-errno) ;;
3009 -fno-common) ;;
3010 -fno-signed-zeros) ;;
3011 -fPIC) ;;
3012 -mthumb) ;;
3013 -march=*) ;;
3014 -lz) echo zlib.lib ;;
3015 -lavifil32) echo vfw32.lib ;;
3016 -lavicap32) echo vfw32.lib user32.lib ;;
3017 -lx264) echo libx264.lib ;;
3018 -l*) echo ${flag#-l}.lib ;;
3019 -L*) echo -libpath:${flag#-L} ;;
3020 *) echo $flag ;;
3021 esac
3022 done
3023 }
3024
3025 msvc_flags(){
3026 msvc_common_flags "$@"
3027 for flag; do
3028 case $flag in
3029 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3030 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3031 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3032 -wd4273 -wd4554 -wd4701 ;;
3033 esac
3034 done
3035 }
3036
3037 icl_flags(){
3038 msvc_common_flags "$@"
3039 for flag; do
3040 case $flag in
3041 # Despite what Intel's documentation says -Wall, which is supported
3042 # on Windows, does enable remarks so disable them here.
3043 -Wall) echo $flag -Qdiag-disable:remark ;;
3044 -std=c99) echo -Qstd=c99 ;;
3045 esac
3046 done
3047 }
3048
3049 pgi_flags(){
3050 for flag; do
3051 case $flag in
3052 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3053 -fomit-frame-pointer) echo -Mnoframe ;;
3054 -g) echo -gopt ;;
3055 *) echo $flag ;;
3056 esac
3057 done
3058 }
3059
3060 suncc_flags(){
3061 for flag; do
3062 case $flag in
3063 -march=*|-mcpu=*)
3064 case "${flag#*=}" in
3065 native) echo -xtarget=native ;;
3066 v9|niagara) echo -xarch=sparc ;;
3067 ultrasparc) echo -xarch=sparcvis ;;
3068 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3069 i586|pentium) echo -xchip=pentium ;;
3070 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3071 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3072 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3073 pentium4*) echo -xtarget=pentium4 ;;
3074 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3075 *-sse3) echo -xarch=sse3 ;;
3076 core2) echo -xarch=ssse3 -xchip=core2 ;;
3077 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3078 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3079 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3080 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3081 k8|opteron|athlon64|athlon-fx)
3082 echo -xarch=sse2a ;;
3083 athlon*) echo -xarch=pentium_proa ;;
3084 esac
3085 ;;
3086 -std=c99) echo -xc99 ;;
3087 -fomit-frame-pointer) echo -xregs=frameptr ;;
3088 -fPIC) echo -KPIC -xcode=pic32 ;;
3089 -W*,*) echo $flag ;;
3090 -f*-*|-W*|-mimpure-text) ;;
3091 -shared) echo -G ;;
3092 *) echo $flag ;;
3093 esac
3094 done
3095 }
3096
3097 tms470_flags(){
3098 for flag; do
3099 case $flag in
3100 -march=*|-mcpu=*)
3101 case "${flag#*=}" in
3102 armv7-a|cortex-a*) echo -mv=7a8 ;;
3103 armv7-r|cortex-r*) echo -mv=7r4 ;;
3104 armv7-m|cortex-m*) echo -mv=7m3 ;;
3105 armv6*|arm11*) echo -mv=6 ;;
3106 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3107 echo -mv=5e ;;
3108 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3109 esac
3110 ;;
3111 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3112 -mfpu=vfp) echo --float_support=vfpv2 ;;
3113 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3114 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3115 -msoft-float) echo --float_support=vfplib ;;
3116 -O[0-3]|-mf=*) echo $flag ;;
3117 -g) echo -g -mn ;;
3118 -pds=*) echo $flag ;;
3119 -D*|-I*) echo $flag ;;
3120 --gcc|--abi=*) echo $flag ;;
3121 -me) echo $flag ;;
3122 esac
3123 done
3124 }
3125
3126 probe_cc(){
3127 pfx=$1
3128 _cc=$2
3129
3130 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3131 unset _ld_o _ldflags _ld_lib _ld_path
3132 unset _depflags _DEPCMD _DEPFLAGS
3133 _flags_filter=echo
3134
3135 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3136 _type=llvm_gcc
3137 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3138 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3139 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3140 _cflags_speed='-O3'
3141 _cflags_size='-Os'
3142 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3143 _type=gcc
3144 gcc_version=$($_cc --version | head -n1)
3145 gcc_basever=$($_cc -dumpversion)
3146 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3147 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3148 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3149 if ! $_cc -dumpversion | grep -q '^2\.'; then
3150 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3151 fi
3152 _cflags_speed='-O3'
3153 _cflags_size='-Os'
3154 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3155 _type=icc
3156 _ident=$($_cc --version | head -n1)
3157 _depflags='-MMD'
3158 _cflags_speed='-O3'
3159 _cflags_size='-Os'
3160 _cflags_noopt='-O1'
3161 elif $_cc -v 2>&1 | grep -q xlc; then
3162 _type=xlc
3163 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3164 _cflags_speed='-O5'
3165 _cflags_size='-O5 -qcompact'
3166 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3167 _type=ccc
3168 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3169 _DEPFLAGS='-M'
3170 _cflags_speed='-fast'
3171 _cflags_size='-O1'
3172 _flags_filter=ccc_flags
3173 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3174 test -d "$sysroot" || die "No valid sysroot specified."
3175 _type=armcc
3176 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3177 armcc_conf="$PWD/armcc.conf"
3178 $_cc --arm_linux_configure \
3179 --arm_linux_config_file="$armcc_conf" \
3180 --configure_sysroot="$sysroot" \
3181 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3182 die "Error creating armcc configuration file."
3183 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3184 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3185 as_default="${cross_prefix}gcc"
3186 _depflags='-MMD'
3187 _cflags_speed='-O3'
3188 _cflags_size='-Os'
3189 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3190 _type=tms470
3191 _ident=$($_cc -version | head -n1 | tr -s ' ')
3192 _flags='--gcc --abi=eabi -me'
3193 _cc_e='-ppl -fe=$@'
3194 _cc_o='-fe=$@'
3195 _depflags='-ppa -ppd=$(@:.o=.d)'
3196 _cflags_speed='-O3 -mf=5'
3197 _cflags_size='-O3 -mf=2'
3198 _flags_filter=tms470_flags
3199 elif $_cc -v 2>&1 | grep -q clang; then
3200 _type=clang
3201 _ident=$($_cc --version 2>/dev/null | head -n1)
3202 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3203 _cflags_speed='-O3'
3204 _cflags_size='-Os'
3205 elif $_cc -V 2>&1 | grep -q Sun; then
3206 _type=suncc
3207 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3208 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3209 _DEPFLAGS='-xM1 -xc99'
3210 _ldflags='-std=c99'
3211 _cflags_speed='-O5'
3212 _cflags_size='-O5 -xspace'
3213 _flags_filter=suncc_flags
3214 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3215 _type=pathscale
3216 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3217 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3218 _cflags_speed='-O2'
3219 _cflags_size='-Os'
3220 _flags_filter='filter_out -Wdisabled-optimization'
3221 elif $_cc -v 2>&1 | grep -q Open64; then
3222 _type=open64
3223 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3224 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3225 _cflags_speed='-O2'
3226 _cflags_size='-Os'
3227 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3228 elif $_cc -V 2>&1 | grep -q Portland; then
3229 _type=pgi
3230 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3231 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3232 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3233 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3234 _cflags_noopt="-O1"
3235 _flags_filter=pgi_flags
3236 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3237 _type=armasm
3238 _ident=$($_cc | head -n1)
3239 # 4509: "This form of conditional instruction is deprecated"
3240 _flags="-nologo -ignore 4509"
3241 _flags_filter=armasm_flags
3242 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3243 _type=msvc
3244 _ident=$($_cc 2>&1 | head -n1)
3245 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3246 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3247 _cflags_speed="-O2"
3248 _cflags_size="-O1"
3249 if $_cc -nologo- 2>&1 | grep -q Linker; then
3250 _ld_o='-out:$@'
3251 else
3252 _ld_o='-Fe$@'
3253 fi
3254 _cc_o='-Fo$@'
3255 _cc_e='-P -Fi$@'
3256 _flags_filter=msvc_flags
3257 _ld_lib='lib%.a'
3258 _ld_path='-libpath:'
3259 _flags='-nologo'
3260 elif $_cc 2>&1 | grep -q Intel; then
3261 _type=icl
3262 _ident=$($_cc 2>&1 | head -n1)
3263 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3264 # Not only is O3 broken on 13.x+ but it is slower on all previous
3265 # versions (tested) as well.
3266 _cflags_speed="-O2"
3267 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3268 if $_cc 2>&1 | grep -q Linker; then
3269 _ld_o='-out:$@'
3270 else
3271 _ld_o='-Fe$@'
3272 fi
3273 _cc_o='-Fo$@'
3274 _cc_e='-P'
3275 _flags_filter=icl_flags
3276 _ld_lib='lib%.a'
3277 _ld_path='-libpath:'
3278 # -Qdiag-error to make icl error when seeing certain unknown arguments
3279 _flags='-nologo -Qdiag-error:4044,10157'
3280 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3281 # with MSVC which enables it by default.
3282 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3283 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3284 # lld can emulate multiple different linkers; in ms link.exe mode,
3285 # the -? parameter gives the help output which contains an identifyable
3286 # string, while it gives an error in other modes.
3287 _type=lld-link
3288 # The link.exe mode doesn't have a switch for getting the version,
3289 # but we can force it back to gnu mode and get the version from there.
3290 _ident=$($_cc -flavor gnu --version)
3291 _ld_o='-out:$@'
3292 _flags_filter=msvc_flags
3293 _ld_lib='lib%.a'
3294 _ld_path='-libpath:'
3295 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3296 _type=cparser
3297 _ident=$($_cc --version | head -n1)
3298 _depflags='-MMD'
3299 _cflags_speed='-O4'
3300 _cflags_size='-O2'
3301 _flags_filter=cparser_flags
3302 fi
3303
3304 eval ${pfx}_type=\$_type
3305 eval ${pfx}_ident=\$_ident
3306 }
3307
3308 set_ccvars(){
3309 eval ${1}_C=\${_cc_c-\${${1}_C}}
3310 eval ${1}_E=\${_cc_e-\${${1}_E}}
3311 eval ${1}_O=\${_cc_o-\${${1}_O}}
3312
3313 if [ -n "$_depflags" ]; then
3314 eval ${1}_DEPFLAGS=\$_depflags
3315 else
3316 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3317 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3318 eval DEP${1}FLAGS=\$_flags
3319 fi
3320 }
3321
3322 probe_cc cc "$cc"
3323 cflags_filter=$_flags_filter
3324 cflags_speed=$_cflags_speed
3325 cflags_size=$_cflags_size
3326 cflags_noopt=$_cflags_noopt
3327 add_cflags $_flags $_cflags
3328 cc_ldflags=$_ldflags
3329 set_ccvars CC
3330
3331 probe_cc hostcc "$host_cc"
3332 host_cflags_filter=$_flags_filter
3333 add_host_cflags $_flags $_cflags
3334 set_ccvars HOSTCC
3335
3336 test -n "$cc_type" && enable $cc_type ||
3337 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3338
3339 : ${as_default:=$cc}
3340 : ${objcc_default:=$cc}
3341 : ${dep_cc_default:=$cc}
3342 : ${ld_default:=$cc}
3343 : ${host_ld_default:=$host_cc}
3344 set_default ar as objcc dep_cc ld host_ld
3345
3346 probe_cc as "$as"
3347 asflags_filter=$_flags_filter
3348 add_asflags $_flags $_cflags
3349 set_ccvars AS
3350
3351 probe_cc objcc "$objcc"
3352 objcflags_filter=$_flags_filter
3353 add_objcflags $_flags $_cflags
3354 set_ccvars OBJC
3355
3356 probe_cc ld "$ld"
3357 ldflags_filter=$_flags_filter
3358 add_ldflags $_flags $_ldflags
3359 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3360 LD_O=${_ld_o-$LD_O}
3361 LD_LIB=${_ld_lib-$LD_LIB}
3362 LD_PATH=${_ld_path-$LD_PATH}
3363
3364 probe_cc hostld "$host_ld"
3365 host_ldflags_filter=$_flags_filter
3366 add_host_ldflags $_flags $_ldflags
3367 HOSTLD_O=${_ld_o-$HOSTLD_O}
3368
3369 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3370 probe_cc depcc "$dep_cc"
3371 CCDEP=${_DEPCMD:-$DEPCMD}
3372 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3373 DEPCCFLAGS=$_flags
3374 fi
3375
3376 if $ar 2>&1 | grep -q Microsoft; then
3377 arflags="-nologo"
3378 ar_o='-out:$@'
3379 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3380 arflags="rq"
3381 ar_o='$@'
3382 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3383 arflags='-Xany -r -c'
3384 ar_o='$@'
3385 else
3386 arflags="rc"
3387 ar_o='$@'
3388 fi
3389
3390 add_cflags $extra_cflags
3391 add_objcflags $extra_objcflags
3392 add_asflags $extra_cflags
3393
3394 if test -n "$sysroot"; then
3395 case "$cc_type" in
3396 gcc|llvm_gcc|clang)
3397 add_cppflags --sysroot="$sysroot"
3398 add_ldflags --sysroot="$sysroot"
3399 ;;
3400 tms470)
3401 add_cppflags -I"$sysinclude"
3402 add_ldflags --sysroot="$sysroot"
3403 ;;
3404 esac
3405 fi
3406
3407 if test "$cpu" = host; then
3408 enabled cross_compile &&
3409 die "--cpu=host makes no sense when cross-compiling."
3410
3411 case "$cc_type" in
3412 gcc|llvm_gcc)
3413 check_native(){
3414 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3415 sed -n "/cc1.*$1=/{
3416 s/.*$1=\\([^ ]*\\).*/\\1/
3417 p
3418 q
3419 }" $TMPE
3420 }
3421 cpu=$(check_native -march || check_native -mcpu)
3422 ;;
3423 esac
3424
3425 test "${cpu:-host}" = host &&
3426 die "--cpu=host not supported with compiler $cc"
3427 fi
3428
3429 # Deal with common $arch aliases
3430 case "$arch" in
3431 aarch64|arm64)
3432 arch="aarch64"
3433 ;;
3434 arm*)
3435 arch="arm"
3436 ;;
3437 mips*|IP*)
3438 case "$arch" in
3439 *el)
3440 add_cppflags -EL
3441 add_ldflags -EL
3442 ;;
3443 *eb)
3444 add_cppflags -EB
3445 add_ldflags -EB
3446 ;;
3447 esac
3448 arch="mips"
3449 ;;
3450 parisc*|hppa*)
3451 arch="parisc"
3452 ;;
3453 "Power Macintosh"|ppc*|powerpc*)
3454 arch="ppc"
3455 ;;
3456 s390|s390x)
3457 arch="s390"
3458 ;;
3459 sh4|sh)
3460 arch="sh4"
3461 ;;
3462 sun4u|sparc*)
3463 arch="sparc"
3464 ;;
3465 tilegx|tile-gx)
3466 arch="tilegx"
3467 ;;
3468 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3469 arch="x86"
3470 ;;
3471 esac
3472
3473 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3474 enable $arch
3475
3476 # Add processor-specific flags
3477 if enabled aarch64; then
3478
3479 case $cpu in
3480 armv*)
3481 cpuflags="-march=$cpu"
3482 ;;
3483 *)
3484 cpuflags="-mcpu=$cpu"
3485 ;;
3486 esac
3487
3488 elif enabled alpha; then
3489
3490 cpuflags="-mcpu=$cpu"
3491
3492 elif enabled arm; then
3493
3494 check_arm_arch() {
3495 check_cpp_condition stddef.h \
3496 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3497 $cpuflags
3498 }
3499
3500 probe_arm_arch() {
3501 if check_arm_arch 4; then echo armv4
3502 elif check_arm_arch 4T; then echo armv4t
3503 elif check_arm_arch 5; then echo armv5
3504 elif check_arm_arch 5E; then echo armv5e
3505 elif check_arm_arch 5T; then echo armv5t
3506 elif check_arm_arch 5TE; then echo armv5te
3507 elif check_arm_arch 5TEJ; then echo armv5te
3508 elif check_arm_arch 6; then echo armv6
3509 elif check_arm_arch 6J; then echo armv6j
3510 elif check_arm_arch 6K; then echo armv6k
3511 elif check_arm_arch 6Z; then echo armv6z
3512 elif check_arm_arch 6ZK; then echo armv6zk
3513 elif check_arm_arch 6T2; then echo armv6t2
3514 elif check_arm_arch 7; then echo armv7
3515 elif check_arm_arch 7A 7_A; then echo armv7-a
3516 elif check_arm_arch 7S; then echo armv7-a
3517 elif check_arm_arch 7R 7_R; then echo armv7-r
3518 elif check_arm_arch 7M 7_M; then echo armv7-m
3519 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3520 elif check_arm_arch 8A 8_A; then echo armv8-a
3521 fi
3522 }
3523
3524 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3525
3526 case $cpu in
3527 armv*)
3528 cpuflags="-march=$cpu"
3529 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3530 ;;
3531 *)
3532 cpuflags="-mcpu=$cpu"
3533 case $cpu in
3534 cortex-a*) subarch=armv7a ;;
3535 cortex-r*) subarch=armv7r ;;
3536 cortex-m*) enable thumb; subarch=armv7m ;;
3537 arm11*) subarch=armv6 ;;
3538 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3539 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3540 *) subarch=$(probe_arm_arch) ;;
3541 esac
3542 ;;
3543 esac
3544
3545 case "$subarch" in
3546 armv5t*) enable fast_clz ;;
3547 armv[6-8]*) enable fast_clz fast_unaligned ;;
3548 esac
3549
3550 elif enabled avr32; then
3551
3552 case $cpu in
3553 ap7[02]0[0-2])
3554 subarch="avr32_ap"
3555 cpuflags="-mpart=$cpu"
3556 ;;
3557 ap)
3558 subarch="avr32_ap"
3559 cpuflags="-march=$cpu"
3560 ;;
3561 uc3[ab]*)
3562 subarch="avr32_uc"
3563 cpuflags="-mcpu=$cpu"
3564 ;;
3565 uc)
3566 subarch="avr32_uc"
3567 cpuflags="-march=$cpu"
3568 ;;
3569 esac
3570
3571 elif enabled bfin; then
3572
3573 cpuflags="-mcpu=$cpu"
3574
3575 elif enabled mips; then
3576
3577 cpuflags="-march=$cpu"
3578
3579 elif enabled ppc; then
3580
3581 disable ldbrx
3582
3583 case $(tolower $cpu) in
3584 601|ppc601|powerpc601)
3585 cpuflags="-mcpu=601"
3586 disable altivec
3587 ;;
3588 603*|ppc603*|powerpc603*)
3589 cpuflags="-mcpu=603"
3590 disable altivec
3591 ;;
3592 604*|ppc604*|powerpc604*)
3593 cpuflags="-mcpu=604"
3594 disable altivec
3595 ;;
3596 g3|75*|ppc75*|powerpc75*)
3597 cpuflags="-mcpu=750"
3598 disable altivec
3599 ;;
3600 g4|745*|ppc745*|powerpc745*)
3601 cpuflags="-mcpu=7450"
3602 disable vsx
3603 ;;
3604 74*|ppc74*|powerpc74*)
3605 cpuflags="-mcpu=7400"
3606 disable vsx
3607 ;;
3608 g5|970|ppc970|powerpc970)
3609 cpuflags="-mcpu=970"
3610 disable vsx
3611 ;;
3612 power[3-6]*)
3613 cpuflags="-mcpu=$cpu"
3614 disable vsx
3615 ;;
3616 power[7-8]*)
3617 cpuflags="-mcpu=$cpu"
3618 enable ldbrx
3619 ;;
3620 cell)
3621 cpuflags="-mcpu=cell"
3622 enable ldbrx
3623 disable vsx
3624 ;;
3625 e500mc)
3626 cpuflags="-mcpu=e500mc"
3627 disable altivec
3628 ;;
3629 e500v2)
3630 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3631 disable altivec
3632 disable dcbzl
3633 ;;
3634 e500)
3635 cpuflags="-mcpu=8540 -mhard-float"
3636 disable altivec
3637 disable dcbzl
3638 ;;
3639 esac
3640
3641 elif enabled sparc; then
3642
3643 case $cpu in
3644 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3645 cpuflags="-mcpu=$cpu"
3646 ;;
3647 ultrasparc*|niagara[234])
3648 cpuflags="-mcpu=$cpu"
3649 ;;
3650 esac
3651
3652 elif enabled x86; then
3653
3654 case $cpu in
3655 i[345]86|pentium)
3656 cpuflags="-march=$cpu"
3657 disable i686
3658 disable mmx
3659 ;;
3660 # targets that do NOT support nopl and conditional mov (cmov)
3661 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3662 cpuflags="-march=$cpu"
3663 disable i686
3664 ;;
3665 # targets that do support nopl and conditional mov (cmov)
3666 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3667 cpuflags="-march=$cpu"
3668 enable i686
3669 enable fast_cmov
3670 ;;
3671 # targets that do support conditional mov but on which it's slow
3672 pentium4|pentium4m|prescott|nocona)
3673 cpuflags="-march=$cpu"
3674 enable i686
3675 disable fast_cmov
3676 ;;
3677 esac
3678
3679 fi
3680
3681 if [ "$cpu" != generic ]; then
3682 add_cflags $cpuflags
3683 add_asflags $cpuflags
3684 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3685 fi
3686
3687 # compiler sanity check
3688 check_exec <<EOF
3689 int main(void){ return 0; }
3690 EOF
3691 if test "$?" != 0; then
3692 echo "$cc is unable to create an executable file."
3693 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3694 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3695 echo "Only do this if you know what cross compiling means."
3696 fi
3697 die "C compiler test failed."
3698 fi
3699
3700 add_cppflags -D_ISOC99_SOURCE
3701
3702 # some compilers silently accept -std=c11, so we also need to check that the
3703 # version macro is defined properly
3704 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3705 add_cflags -std=c11
3706 else
3707 check_cflags -std=c99
3708 fi
3709
3710 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3711 #include <stdlib.h>
3712 EOF
3713 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3714 #include <stdlib.h>
3715 EOF
3716
3717 add_host_cppflags -D_ISOC99_SOURCE
3718 check_host_cflags -std=c99
3719 check_host_cflags -Wall
3720 check_host_cflags -O3
3721
3722 check_64bit(){
3723 arch32=$1