ac20cfa986e4a6cc4dd0453178538a513ac57525
[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 $BUILTIN_LIST
1655 $HAVE_LIST_CMDLINE
1656 $HAVE_LIST_PUB
1657 $HEADERS_LIST
1658 $INTRINSICS_LIST
1659 $MATH_FUNCS
1660 $SYSTEM_FUNCS
1661 $THREADS_LIST
1662 $TOOLCHAIN_FEATURES
1663 $TYPES_LIST
1664 dos_paths
1665 dxva2_lib
1666 libc_msvcrt
1667 libdc1394_1
1668 libdc1394_2
1669 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1670 sdl
1671 section_data_rel_ro
1672 threads
1673 vaapi_drm
1674 vaapi_x11
1675 vdpau_x11
1676 xlib
1677 "
1678
1679 # options emitted with CONFIG_ prefix but not available on the command line
1680 CONFIG_EXTRA="
1681 aandcttables
1682 ac3dsp
1683 audio_frame_queue
1684 audiodsp
1685 blockdsp
1686 bswapdsp
1687 cabac
1688 dirac_parse
1689 dvprofile
1690 faandct
1691 faanidct
1692 fdctdsp
1693 flacdsp
1694 fmtconvert
1695 g722dsp
1696 gcrypt
1697 gmp
1698 golomb
1699 gplv3
1700 h263dsp
1701 h264chroma
1702 h264dsp
1703 h264parse
1704 h264pred
1705 h264qpel
1706 hpeldsp
1707 huffman
1708 huffyuvdsp
1709 huffyuvencdsp
1710 idctdsp
1711 iirfilter
1712 imdct15
1713 intrax8
1714 iso_media
1715 ividsp
1716 jpegtables
1717 libx262
1718 lgplv3
1719 lpc
1720 lzf
1721 me_cmp
1722 mpeg_er
1723 mpegaudio
1724 mpegaudiodsp
1725 mpegvideo
1726 mpegvideoenc
1727 mss34dsp
1728 pixblockdsp
1729 qpeldsp
1730 qsv
1731 qsvdec
1732 qsvenc
1733 rangecoder
1734 riffdec
1735 riffenc
1736 rtpdec
1737 rtpenc_chain
1738 rv34dsp
1739 sinewin
1740 snappy
1741 srtp
1742 startcode
1743 texturedsp
1744 texturedspenc
1745 tpeldsp
1746 vaapi_encode
1747 vc1dsp
1748 videodsp
1749 vp3dsp
1750 vp56dsp
1751 vp8dsp
1752 wma_freqs
1753 wmv2dsp
1754 "
1755
1756 CMDLINE_SELECT="
1757 $ARCH_EXT_LIST
1758 $CONFIG_LIST
1759 $HAVE_LIST_CMDLINE
1760 $THREADS_LIST
1761 asm
1762 cross_compile
1763 debug
1764 extra_warnings
1765 logging
1766 lto
1767 optimizations
1768 rpath
1769 "
1770
1771 PATHS_LIST="
1772 bindir
1773 datadir
1774 docdir
1775 incdir
1776 libdir
1777 mandir
1778 prefix
1779 shlibdir
1780 "
1781
1782 CMDLINE_SET="
1783 $PATHS_LIST
1784 ar
1785 arch
1786 as
1787 build_suffix
1788 cc
1789 objcc
1790 cpu
1791 cross_prefix
1792 custom_allocator
1793 dep_cc
1794 env
1795 extra_version
1796 host_cc
1797 host_cflags
1798 host_ld
1799 host_ldflags
1800 host_libs
1801 host_os
1802 ld
1803 logfile
1804 malloc_prefix
1805 nm
1806 optflags
1807 pkg_config
1808 pkg_config_flags
1809 random_seed
1810 samples
1811 sysinclude
1812 sysroot
1813 target_exec
1814 target_os
1815 target_path
1816 target_samples
1817 toolchain
1818 "
1819
1820 CMDLINE_APPEND="
1821 extra_cflags
1822 extra_objcflags
1823 host_cppflags
1824 "
1825
1826 # code dependency declarations
1827
1828 # architecture extensions
1829
1830 armv5te_deps="arm"
1831 armv6_deps="arm"
1832 armv6t2_deps="arm"
1833 armv8_deps="aarch64"
1834 neon_deps_any="aarch64 arm"
1835 intrinsics_neon_deps="neon"
1836 vfp_deps_any="aarch64 arm"
1837 vfpv3_deps="vfp"
1838
1839 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1840
1841 altivec_deps="ppc"
1842 ppc4xx_deps="ppc"
1843 vsx_deps="altivec"
1844 power8_deps="vsx"
1845
1846 cpunop_deps="i686"
1847 x86_64_select="i686"
1848 x86_64_suggest="fast_cmov"
1849
1850 amd3dnow_deps="mmx"
1851 amd3dnowext_deps="amd3dnow"
1852 i686_deps="x86"
1853 mmx_deps="x86"
1854 mmxext_deps="mmx"
1855 sse_deps="mmxext"
1856 sse2_deps="sse"
1857 sse3_deps="sse2"
1858 ssse3_deps="sse3"
1859 sse4_deps="ssse3"
1860 sse42_deps="sse4"
1861 avx_deps="sse42"
1862 xop_deps="avx"
1863 fma3_deps="avx"
1864 fma4_deps="avx"
1865 avx2_deps="avx"
1866
1867 mmx_external_deps="yasm"
1868 mmx_inline_deps="inline_asm"
1869 mmx_suggest="mmx_external mmx_inline"
1870
1871 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1872 eval dep=\$${ext}_deps
1873 eval ${ext}_external_deps='"${dep}_external"'
1874 eval ${ext}_inline_deps='"${dep}_inline"'
1875 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1876 done
1877
1878 aligned_stack_if_any="aarch64 ppc x86"
1879 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1880 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1881 fast_unaligned_if_any="aarch64 ppc x86"
1882 simd_align_16_if_any="altivec neon sse"
1883 simd_align_32_if_any="avx"
1884
1885 # system capabilities
1886 symver_if_any="symver_asm_label symver_gnu_asm"
1887 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1888
1889 # threading support
1890 atomics_gcc_if="sync_val_compare_and_swap"
1891 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1892 atomics_win32_if="MemoryBarrier"
1893 atomics_native_if_any="$ATOMICS_LIST"
1894 w32threads_deps="atomics_native"
1895 threads_if_any="$THREADS_LIST"
1896
1897 # subsystems
1898 dct_select="rdft"
1899 dirac_parse_select="golomb"
1900 error_resilience_select="me_cmp"
1901 faandct_deps="faan fdctdsp"
1902 faanidct_deps="faan idctdsp"
1903 h264dsp_select="startcode"
1904 intrax8_select="blockdsp idctdsp"
1905 mdct_select="fft"
1906 rdft_select="fft"
1907 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1908 mpeg_er_select="error_resilience"
1909 mpegaudio_select="mpegaudiodsp"
1910 mpegaudiodsp_select="dct"
1911 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1912 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1913 vc1dsp_select="h264chroma qpeldsp startcode"
1914
1915 # decoders / encoders
1916 aac_decoder_select="imdct15 mdct sinewin"
1917 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1918 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1919 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1920 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1921 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1922 adpcm_g722_decoder_select="g722dsp"
1923 adpcm_g722_encoder_select="g722dsp"
1924 aic_decoder_select="golomb idctdsp"
1925 alac_encoder_select="lpc"
1926 als_decoder_select="bswapdsp"
1927 amrnb_decoder_select="lsp"
1928 amrwb_decoder_select="lsp"
1929 amv_decoder_select="sp5x_decoder"
1930 ape_decoder_select="bswapdsp"
1931 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1932 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1933 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1934 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1935 atrac1_decoder_select="mdct sinewin"
1936 atrac3_decoder_select="mdct"
1937 atrac3p_decoder_select="mdct sinewin"
1938 bink_decoder_select="blockdsp hpeldsp"
1939 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1940 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1941 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1942 cllc_decoder_select="bswapdsp"
1943 comfortnoise_encoder_select="lpc"
1944 cook_decoder_select="audiodsp mdct sinewin"
1945 cscd_decoder_select="lzo"
1946 cscd_decoder_suggest="zlib"
1947 dca_decoder_select="fmtconvert mdct"
1948 dds_decoder_select="texturedsp"
1949 dnxhd_decoder_select="blockdsp idctdsp"
1950 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1951 dvvideo_decoder_select="dvprofile idctdsp"
1952 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1953 dxa_decoder_deps="zlib"
1954 dxv_decoder_select="lzf texturedsp"
1955 eac3_decoder_select="ac3_decoder"
1956 eac3_encoder_select="ac3_encoder"
1957 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1958 eatgq_decoder_select="aandcttables idctdsp"
1959 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1960 exr_decoder_deps="zlib"
1961 ffv1_decoder_select="golomb rangecoder"
1962 ffv1_encoder_select="rangecoder"
1963 ffvhuff_decoder_select="huffyuv_decoder"
1964 ffvhuff_encoder_select="huffyuv_encoder"
1965 fic_decoder_select="golomb"
1966 flac_decoder_select="flacdsp golomb"
1967 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1968 flashsv_decoder_deps="zlib"
1969 flashsv_encoder_deps="zlib"
1970 flashsv2_decoder_deps="zlib"
1971 flv_decoder_select="h263_decoder"
1972 flv_encoder_select="h263_encoder"
1973 fourxm_decoder_select="blockdsp bswapdsp"
1974 fraps_decoder_select="bswapdsp huffman"
1975 g2m_decoder_deps="zlib"
1976 g2m_decoder_select="blockdsp idctdsp jpegtables"
1977 h261_decoder_select="mpeg_er mpegvideo"
1978 h261_encoder_select="aandcttables mpegvideoenc"
1979 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1980 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1981 h263i_decoder_select="h263_decoder"
1982 h263p_encoder_select="h263_encoder"
1983 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1984 h264_decoder_suggest="error_resilience"
1985 hap_decoder_select="snappy texturedsp"
1986 hap_encoder_deps="libsnappy"
1987 hap_encoder_select="texturedspenc"
1988 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1989 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1990 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1991 iac_decoder_select="imc_decoder"
1992 imc_decoder_select="bswapdsp fft mdct sinewin"
1993 indeo3_decoder_select="hpeldsp"
1994 indeo4_decoder_select="ividsp"
1995 indeo5_decoder_select="ividsp"
1996 interplay_video_decoder_select="hpeldsp"
1997 jpegls_decoder_select="golomb mjpeg_decoder"
1998 jpegls_encoder_select="golomb"
1999 jv_decoder_select="blockdsp"
2000 lagarith_decoder_select="huffyuvdsp"
2001 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2002 loco_decoder_select="golomb"
2003 magicyuv_decoder_select="huffyuvdsp"
2004 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2005 metasound_decoder_select="lsp mdct sinewin"
2006 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2007 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2008 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2009 mjpegb_decoder_select="mjpeg_decoder"
2010 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2011 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2012 mlp_decoder_select="mlp_parser"
2013 motionpixels_decoder_select="bswapdsp"
2014 mp1_decoder_select="mpegaudio"
2015 mp1float_decoder_select="mpegaudio"
2016 mp2_decoder_select="mpegaudio"
2017 mp2float_decoder_select="mpegaudio"
2018 mp3_decoder_select="mpegaudio"
2019 mp3adu_decoder_select="mpegaudio"
2020 mp3adufloat_decoder_select="mpegaudio"
2021 mp3float_decoder_select="mpegaudio"
2022 mp3on4_decoder_select="mpegaudio"
2023 mp3on4float_decoder_select="mpegaudio"
2024 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2025 mpc8_decoder_select="mpegaudiodsp"
2026 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2027 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2028 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2029 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2030 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2031 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2032 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2033 mpeg4_encoder_select="h263_encoder"
2034 msa1_decoder_select="mss34dsp"
2035 msmpeg4v1_decoder_select="h263_decoder"
2036 msmpeg4v2_decoder_select="h263_decoder"
2037 msmpeg4v2_encoder_select="h263_encoder"
2038 msmpeg4v3_decoder_select="h263_decoder"
2039 msmpeg4v3_encoder_select="h263_encoder"
2040 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2041 mts2_decoder_select="mss34dsp"
2042 mxpeg_decoder_select="mjpeg_decoder"
2043 nellymoser_decoder_select="mdct sinewin"
2044 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2045 nuv_decoder_select="idctdsp lzo"
2046 on2avc_decoder_select="mdct"
2047 opus_decoder_deps="avresample"
2048 opus_decoder_select="imdct15"
2049 png_decoder_deps="zlib"
2050 png_encoder_deps="zlib"
2051 png_encoder_select="huffyuvencdsp"
2052 prores_decoder_select="idctdsp"
2053 prores_encoder_select="fdctdsp"
2054 qcelp_decoder_select="lsp"
2055 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2056 ra_144_encoder_select="audio_frame_queue lpc"
2057 ralf_decoder_select="golomb"
2058 rscc_decoder_deps="zlib"
2059 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2060 rv10_encoder_select="h263_encoder"
2061 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2062 rv20_encoder_select="h263_encoder"
2063 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2064 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2065 screenpresso_decoder_deps="zlib"
2066 shorten_decoder_select="golomb"
2067 sipr_decoder_select="lsp"
2068 sp5x_decoder_select="mjpeg_decoder"
2069 svq1_decoder_select="hpeldsp"
2070 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2071 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2072 svq3_decoder_suggest="zlib"
2073 tak_decoder_select="audiodsp"
2074 tdsc_decoder_deps="zlib"
2075 tdsc_decoder_select="mjpeg_decoder"
2076 theora_decoder_select="vp3_decoder"
2077 thp_decoder_select="mjpeg_decoder"
2078 tiff_decoder_suggest="zlib"
2079 tiff_encoder_suggest="zlib"
2080 truehd_decoder_select="mlp_decoder"
2081 truemotion2_decoder_select="bswapdsp"
2082 truespeech_decoder_select="bswapdsp"
2083 tscc_decoder_deps="zlib"
2084 txd_decoder_select="texturedsp"
2085 twinvq_decoder_select="mdct lsp sinewin"
2086 utvideo_decoder_select="bswapdsp"
2087 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2088 vble_decoder_select="huffyuvdsp"
2089 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2090 vc1image_decoder_select="vc1_decoder"
2091 vorbis_decoder_select="mdct"
2092 vorbis_encoder_select="mdct"
2093 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2094 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2095 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2096 vp6a_decoder_select="vp6_decoder"
2097 vp6f_decoder_select="vp6_decoder"
2098 vp7_decoder_select="h264pred videodsp vp8dsp"
2099 vp8_decoder_select="h264pred videodsp vp8dsp"
2100 vp9_decoder_select="videodsp"
2101 webp_decoder_select="vp8_decoder"
2102 wmapro_decoder_select="mdct sinewin wma_freqs"
2103 wmav1_decoder_select="mdct sinewin wma_freqs"
2104 wmav1_encoder_select="mdct sinewin wma_freqs"
2105 wmav2_decoder_select="mdct sinewin wma_freqs"
2106 wmav2_encoder_select="mdct sinewin wma_freqs"
2107 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2108 wmv1_decoder_select="h263_decoder"
2109 wmv1_encoder_select="h263_encoder"
2110 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2111 wmv2_encoder_select="h263_encoder wmv2dsp"
2112 wmv3_decoder_select="vc1_decoder"
2113 wmv3image_decoder_select="wmv3_decoder"
2114 zerocodec_decoder_deps="zlib"
2115 zlib_decoder_deps="zlib"
2116 zlib_encoder_deps="zlib"
2117 zmbv_decoder_deps="zlib"
2118 zmbv_encoder_deps="zlib"
2119
2120 # hardware accelerators
2121 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2122 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2123 vaapi_deps="va_va_h"
2124 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2125 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2126 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2127
2128 h263_vaapi_hwaccel_deps="vaapi"
2129 h263_vaapi_hwaccel_select="h263_decoder"
2130 h264_d3d11va_hwaccel_deps="d3d11va"
2131 h264_d3d11va_hwaccel_select="h264_decoder"
2132 h264_dxva2_hwaccel_deps="dxva2"
2133 h264_dxva2_hwaccel_select="h264_decoder"
2134 h264_mmal_decoder_deps="mmal"
2135 h264_mmal_decoder_select="mmal"
2136 h264_mmal_hwaccel_deps="mmal"
2137 h264_omx_encoder_deps="omx"
2138 h264_qsv_hwaccel_deps="libmfx"
2139 h264_vaapi_hwaccel_deps="vaapi"
2140 h264_vaapi_hwaccel_select="h264_decoder"
2141 h264_vda_hwaccel_deps="vda"
2142 h264_vda_hwaccel_select="h264_decoder"
2143 h264_vda_old_hwaccel_deps="vda"
2144 h264_vda_old_hwaccel_select="h264_decoder"
2145 h264_vdpau_hwaccel_deps="vdpau"
2146 h264_vdpau_hwaccel_select="h264_decoder"
2147 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2148 hevc_d3d11va_hwaccel_select="hevc_decoder"
2149 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2150 hevc_dxva2_hwaccel_select="hevc_decoder"
2151 hevc_qsv_hwaccel_deps="libmfx"
2152 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2153 hevc_vdpau_hwaccel_select="hevc_decoder"
2154 mpeg1_vdpau_hwaccel_deps="vdpau"
2155 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2156 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2157 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2158 mpeg2_dxva2_hwaccel_deps="dxva2"
2159 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2160 mpeg2_mmal_decoder_deps="mmal"
2161 mpeg2_mmal_decoder_select="mmal"
2162 mpeg2_mmal_hwaccel_deps="mmal"
2163 mpeg2_qsv_hwaccel_deps="libmfx"
2164 mpeg2_vaapi_hwaccel_deps="vaapi"
2165 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2166 mpeg2_vdpau_hwaccel_deps="vdpau"
2167 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2168 mpeg4_omx_encoder_deps="omx"
2169 mpeg4_vaapi_hwaccel_deps="vaapi"
2170 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2171 mpeg4_vdpau_hwaccel_deps="vdpau"
2172 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2173 vc1_d3d11va_hwaccel_deps="d3d11va"
2174 vc1_d3d11va_hwaccel_select="vc1_decoder"
2175 vc1_dxva2_hwaccel_deps="dxva2"
2176 vc1_dxva2_hwaccel_select="vc1_decoder"
2177 vc1_mmal_decoder_deps="mmal"
2178 vc1_mmal_decoder_select="mmal"
2179 vc1_mmal_hwaccel_deps="mmal"
2180 vc1_vaapi_hwaccel_deps="vaapi"
2181 vc1_vaapi_hwaccel_select="vc1_decoder"
2182 vc1_vdpau_hwaccel_deps="vdpau"
2183 vc1_vdpau_hwaccel_select="vc1_decoder"
2184 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2185 vp8_vaapi_hwaccel_select="vp8_decoder"
2186 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2187 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2188 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2189 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2190
2191 # hardware-accelerated codecs
2192 nvenc_deps_any="dlopen LoadLibrary"
2193 nvenc_extralibs='$ldl'
2194 omx_deps="dlopen pthreads"
2195 omx_extralibs='$ldl'
2196 qsvdec_select="qsv"
2197 qsvenc_select="qsv"
2198 vaapi_encode_deps="vaapi"
2199
2200 hwupload_cuda_filter_deps="cuda"
2201 scale_npp_filter_deps="cuda libnpp"
2202
2203 h264_nvenc_encoder_deps="nvenc"
2204 h264_qsv_decoder_deps="libmfx"
2205 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2206 h264_qsv_encoder_deps="libmfx"
2207 h264_qsv_encoder_select="qsvenc"
2208 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2209 h264_vaapi_encoder_select="vaapi_encode golomb"
2210
2211 hevc_nvenc_encoder_deps="nvenc"
2212 hevc_qsv_decoder_deps="libmfx"
2213 hevc_qsv_encoder_deps="libmfx"
2214 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2215 hevc_qsv_encoder_select="qsvenc"
2216 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2217 hevc_vaapi_encoder_select="vaapi_encode golomb"
2218 mpeg2_qsv_decoder_deps="libmfx"
2219 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2220 mpeg2_qsv_encoder_deps="libmfx"
2221 mpeg2_qsv_encoder_select="qsvenc"
2222
2223 nvenc_h264_encoder_deps="nvenc"
2224 nvenc_hevc_encoder_deps="nvenc"
2225
2226 # parsers
2227 h264_parser_select="golomb h264dsp h264parse"
2228 hevc_parser_select="golomb"
2229 mpegvideo_parser_select="mpegvideo"
2230 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2231 vc1_parser_select="vc1dsp"
2232
2233 # bitstream_filters
2234 mjpeg2jpeg_bsf_select="jpegtables"
2235
2236 # external libraries
2237 libdcadec_decoder_deps="libdcadec"
2238 libfaac_encoder_deps="libfaac"
2239 libfaac_encoder_select="audio_frame_queue"
2240 libfdk_aac_decoder_deps="libfdk_aac"
2241 libfdk_aac_encoder_deps="libfdk_aac"
2242 libfdk_aac_encoder_select="audio_frame_queue"
2243 libgsm_decoder_deps="libgsm"
2244 libgsm_encoder_deps="libgsm"
2245 libgsm_ms_decoder_deps="libgsm"
2246 libgsm_ms_encoder_deps="libgsm"
2247 libilbc_decoder_deps="libilbc"
2248 libilbc_encoder_deps="libilbc"
2249 libkvazaar_encoder_deps="libkvazaar"
2250 libmp3lame_encoder_deps="libmp3lame"
2251 libmp3lame_encoder_select="audio_frame_queue"
2252 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2253 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2254 libopencore_amrnb_encoder_select="audio_frame_queue"
2255 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2256 libopenh264_decoder_deps="libopenh264"
2257 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2258 libopenh264_encoder_deps="libopenh264"
2259 libopenjpeg_decoder_deps="libopenjpeg"
2260 libopenjpeg_encoder_deps="libopenjpeg"
2261 libopus_decoder_deps="libopus"
2262 libopus_encoder_deps="libopus"
2263 libopus_encoder_select="audio_frame_queue"
2264 libschroedinger_decoder_deps="libschroedinger"
2265 libschroedinger_encoder_deps="libschroedinger"
2266 libspeex_decoder_deps="libspeex"
2267 libspeex_encoder_deps="libspeex"
2268 libspeex_encoder_select="audio_frame_queue"
2269 libtheora_encoder_deps="libtheora"
2270 libtwolame_encoder_deps="libtwolame"
2271 libvo_aacenc_encoder_deps="libvo_aacenc"
2272 libvo_aacenc_encoder_select="audio_frame_queue"
2273 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2274 libvorbis_encoder_deps="libvorbis"
2275 libvorbis_encoder_select="audio_frame_queue"
2276 libvpx_vp8_decoder_deps="libvpx"
2277 libvpx_vp8_encoder_deps="libvpx"
2278 libvpx_vp9_decoder_deps="libvpx"
2279 libvpx_vp9_encoder_deps="libvpx"
2280 libwavpack_encoder_deps="libwavpack"
2281 libwebp_encoder_deps="libwebp"
2282 libx262_encoder_deps="libx262"
2283 libx264_encoder_deps="libx264"
2284 libx265_encoder_deps="libx265"
2285 libxavs_encoder_deps="libxavs"
2286 libxvid_encoder_deps="libxvid"
2287
2288 # demuxers / muxers
2289 ac3_demuxer_select="ac3_parser"
2290 asf_demuxer_select="riffdec"
2291 asf_muxer_select="riffenc"
2292 asf_stream_muxer_select="asf_muxer"
2293 avi_demuxer_select="iso_media riffdec"
2294 avi_muxer_select="riffenc"
2295 avisynth_demuxer_deps="avisynth"
2296 avisynth_demuxer_select="riffdec"
2297 caf_demuxer_select="iso_media riffdec"
2298 dash_muxer_select="mp4_muxer"
2299 dirac_demuxer_select="dirac_parser"
2300 dv_demuxer_select="dvprofile"
2301 dv_muxer_select="dvprofile"
2302 dxa_demuxer_select="riffdec"
2303 eac3_demuxer_select="ac3_parser"
2304 f4v_muxer_select="mov_muxer"
2305 flac_demuxer_select="flac_parser"
2306 hds_muxer_select="flv_muxer"
2307 hls_muxer_select="mpegts_muxer"
2308 ipod_muxer_select="mov_muxer"
2309 ismv_muxer_select="mov_muxer"
2310 matroska_audio_muxer_select="matroska_muxer"
2311 matroska_demuxer_select="iso_media riffdec"
2312 matroska_demuxer_suggest="bzlib lzo zlib"
2313 matroska_muxer_select="iso_media riffenc"
2314 mmf_muxer_select="riffenc"
2315 mov_demuxer_select="iso_media riffdec"
2316 mov_demuxer_suggest="zlib"
2317 mov_muxer_select="iso_media riffenc rtpenc_chain"
2318 mp3_demuxer_select="mpegaudio_parser"
2319 mp4_muxer_select="mov_muxer"
2320 mpegts_demuxer_select="iso_media"
2321 mpegts_muxer_select="adts_muxer latm_muxer"
2322 mpegtsraw_demuxer_select="mpegts_demuxer"
2323 mxf_d10_muxer_select="mxf_muxer"
2324 nut_muxer_select="riffenc"
2325 nuv_demuxer_select="riffdec"
2326 oga_muxer_select="ogg_muxer"
2327 ogg_demuxer_select="dirac_parse"
2328 opus_muxer_select="ogg_muxer"
2329 psp_muxer_select="mov_muxer"
2330 rtp_demuxer_select="sdp_demuxer"
2331 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2332 rtsp_demuxer_select="http_protocol rtpdec"
2333 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2334 sap_demuxer_select="sdp_demuxer"
2335 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2336 sdp_demuxer_select="rtpdec"
2337 smoothstreaming_muxer_select="ismv_muxer"
2338 spdif_muxer_select="aac_parser"
2339 spx_muxer_select="ogg_muxer"
2340 swf_demuxer_suggest="zlib"
2341 tak_demuxer_select="tak_parser"
2342 tg2_muxer_select="mov_muxer"
2343 tgp_muxer_select="mov_muxer"
2344 w64_demuxer_select="wav_demuxer"
2345 wav_demuxer_select="riffdec"
2346 wav_muxer_select="riffenc"
2347 webm_muxer_select="iso_media riffenc"
2348 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2349 wtv_demuxer_select="mpegts_demuxer riffdec"
2350 xmv_demuxer_select="riffdec"
2351 xwma_demuxer_select="riffdec"
2352
2353 # indevs / outdevs
2354 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2355 alsa_outdev_deps="alsa_asoundlib_h"
2356 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2357 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2358 dv1394_indev_deps="dv1394"
2359 dv1394_indev_select="dv_demuxer"
2360 fbdev_indev_deps="linux_fb_h"
2361 jack_indev_deps="jack_jack_h"
2362 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2363 libcdio_indev_deps="libcdio"
2364 libdc1394_indev_deps="libdc1394"
2365 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2366 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2367 pulse_indev_deps="libpulse"
2368 sndio_indev_deps="sndio_h"
2369 sndio_outdev_deps="sndio_h"
2370 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2371 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2372 vfwcap_indev_extralibs="-lavicap32"
2373 xcbgrab_indev_deps="libxcb"
2374
2375 # protocols
2376 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2377 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2378 ffrtmpcrypt_protocol_select="tcp_protocol"
2379 ffrtmphttp_protocol_deps="!librtmp_protocol"
2380 ffrtmphttp_protocol_select="http_protocol"
2381 gopher_protocol_select="network"
2382 http_protocol_select="tcp_protocol"
2383 httpproxy_protocol_select="tcp_protocol"
2384 https_protocol_select="tls_protocol"
2385 icecast_protocol_select="http_protocol"
2386 librtmp_protocol_deps="librtmp"
2387 librtmpe_protocol_deps="librtmp"
2388 librtmps_protocol_deps="librtmp"
2389 librtmpt_protocol_deps="librtmp"
2390 librtmpte_protocol_deps="librtmp"
2391 mmsh_protocol_select="http_protocol"
2392 mmst_protocol_select="network"
2393 rtmp_protocol_deps="!librtmp_protocol"
2394 rtmp_protocol_select="tcp_protocol"
2395 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2396 rtmps_protocol_deps="!librtmp_protocol"
2397 rtmps_protocol_select="tls_protocol"
2398 rtmpt_protocol_select="ffrtmphttp_protocol"
2399 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2400 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2401 rtp_protocol_select="udp_protocol"
2402 sctp_protocol_deps="struct_sctp_event_subscribe"
2403 sctp_protocol_select="network"
2404 srtp_protocol_select="rtp_protocol srtp"
2405 tcp_protocol_select="network"
2406 tls_gnutls_protocol_deps="gnutls"
2407 tls_gnutls_protocol_select="tcp_protocol"
2408 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2409 tls_openssl_protocol_select="tcp_protocol"
2410 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2411 udp_protocol_select="network"
2412 unix_protocol_deps="sys_un_h"
2413 unix_protocol_select="network"
2414
2415 # filters
2416 blackframe_filter_deps="gpl"
2417 boxblur_filter_deps="gpl"
2418 bs2b_filter_deps="libbs2b"
2419 cropdetect_filter_deps="gpl"
2420 deinterlace_qsv_filter_deps="libmfx"
2421 delogo_filter_deps="gpl"
2422 drawtext_filter_deps="libfreetype"
2423 frei0r_filter_deps="frei0r dlopen"
2424 frei0r_filter_extralibs='$ldl'
2425 frei0r_src_filter_deps="frei0r dlopen"
2426 frei0r_src_filter_extralibs='$ldl'
2427 hdcd_filter_deps="libhdcd"
2428 hqdn3d_filter_deps="gpl"
2429 interlace_filter_deps="gpl"
2430 ocv_filter_deps="libopencv"
2431 resample_filter_deps="avresample"
2432 scale_filter_deps="swscale"
2433 scale_qsv_filter_deps="libmfx"
2434 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2435
2436 # examples
2437 avcodec_example_deps="avcodec avutil"
2438 filter_audio_example_deps="avfilter avutil"
2439 metadata_example_deps="avformat avutil"
2440 output_example_deps="avcodec avformat avutil swscale"
2441 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2442 transcode_aac_example_deps="avcodec avformat avresample"
2443
2444 # libraries, in linking order
2445 avcodec_deps="avutil"
2446 avdevice_deps="avformat avcodec avutil"
2447 avfilter_deps="avutil"
2448 avformat_deps="avcodec avutil"
2449 avresample_deps="avutil"
2450 swscale_deps="avutil"
2451
2452 # programs
2453 avconv_deps="avcodec avfilter avformat avresample swscale"
2454 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2455 fps_filter null_filter resample_filter scale_filter
2456 trim_filter"
2457 avplay_deps="avcodec avfilter avformat avresample sdl"
2458 avplay_libs='$sdl_libs'
2459 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2460 avprobe_deps="avcodec avformat"
2461
2462 # documentation
2463 pod2man_deps="doc"
2464 texi2html_deps="doc"
2465
2466 # default parameters
2467
2468 logfile="config.log"
2469
2470 # installation paths
2471 prefix_default="/usr/local"
2472 bindir_default='${prefix}/bin'
2473 datadir_default='${prefix}/share/avconv'
2474 docdir_default='${prefix}/share/doc/libav'
2475 incdir_default='${prefix}/include'
2476 libdir_default='${prefix}/lib'
2477 mandir_default='${prefix}/share/man'
2478 shlibdir_default="$libdir_default"
2479
2480 # toolchain
2481 ar_default="ar"
2482 cc_default="gcc"
2483 host_cc_default="gcc"
2484 cp_f="cp -f"
2485 ln_s="ln -s -f"
2486 nm_default="nm -g"
2487 objformat="elf"
2488 pkg_config_default=pkg-config
2489 ranlib="ranlib"
2490 strip="strip"
2491 version_script='--version-script'
2492 yasmexe="yasm"
2493
2494 # machine
2495 arch_default=$(uname -m)
2496 cpu="generic"
2497 intrinsics="none"
2498
2499 # OS
2500 target_os_default=$(tolower $(uname -s))
2501 host_os=$target_os_default
2502
2503 # configurable options
2504 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2505
2506 enable asm
2507 enable debug
2508 enable doc
2509 enable faan faandct faanidct
2510 enable optimizations
2511 enable safe_bitstream_reader
2512 enable static
2513 enable swscale_alpha
2514 enable valgrind_backtrace
2515
2516 # By default, enable only those hwaccels that have no external dependencies.
2517 enable d3d11va dxva2 vda vdpau
2518
2519 # build settings
2520 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2521 LIBPREF="lib"
2522 LIBSUF=".a"
2523 FULLNAME='$(NAME)$(BUILDSUF)'
2524 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2525 SLIBPREF="lib"
2526 SLIBSUF=".so"
2527 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2528 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2529 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2530 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2531 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2532 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2533 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2534
2535 asflags_filter=echo
2536 cflags_filter=echo
2537 ldflags_filter=echo
2538
2539 AS_C='-c'
2540 AS_O='-o $@'
2541 CC_C='-c'
2542 CC_E='-E -o $@'
2543 CC_O='-o $@'
2544 OBJCC_C='-c'
2545 OBJCC_E='-E -o $@'
2546 OBJCC_O='-o $@'
2547 LD_O='-o $@'
2548 LD_LIB='-l%'
2549 LD_PATH='-L'
2550 HOSTCC_C='-c'
2551 HOSTCC_E='-E -o $@'
2552 HOSTCC_O='-o $@'
2553 HOSTLD_O='-o $@'
2554
2555 host_libs='-lm'
2556 host_cflags_filter=echo
2557 host_ldflags_filter=echo
2558
2559 target_path='$(CURDIR)'
2560
2561 # since the object filename is not given with the -MM flag, the compiler
2562 # is only able to print the basename, and we must add the path ourselves
2563 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2564 DEPFLAGS='-MM'
2565
2566 # find source path
2567 if test -f configure; then
2568 source_path=.
2569 else
2570 source_path=$(cd $(dirname "$0"); pwd)
2571 echo "$source_path" | grep -q '[[:blank:]]' &&
2572 die "Out of tree builds are impossible with whitespace in source path."
2573 test -e "$source_path/config.h" &&
2574 die "Out of tree builds are impossible with config.h in source dir."
2575 fi
2576
2577 for v in "$@"; do
2578 r=${v#*=}
2579 l=${v%"$r"}
2580 r=$(sh_quote "$r")
2581 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2582 done
2583
2584 find_things(){
2585 thing=$1
2586 pattern=$2
2587 file=$source_path/$3
2588 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2589 }
2590
2591 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2592 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2593 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2594 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2595 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2596 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2597 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2598 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2599 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2600
2601 find_things_extern(){
2602 thing=$1
2603 pattern=$2
2604 file=$source_path/$3
2605 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2606 }
2607
2608 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2609 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2610
2611 ALL_COMPONENTS="
2612 $BSF_LIST
2613 $DECODER_LIST
2614 $DEMUXER_LIST
2615 $ENCODER_LIST
2616 $FILTER_LIST
2617 $HWACCEL_LIST
2618 $INDEV_LIST
2619 $MUXER_LIST
2620 $OUTDEV_LIST
2621 $PARSER_LIST
2622 $PROTOCOL_LIST
2623 "
2624
2625 for n in $COMPONENT_LIST; do
2626 v=$(toupper ${n%s})_LIST
2627 eval enable \$$v
2628 eval ${n}_if_any="\$$v"
2629 done
2630
2631 enable $ARCH_EXT_LIST
2632
2633 die_unknown(){
2634 echo "Unknown option \"$1\"."
2635 echo "See $0 --help for available options."
2636 exit 1
2637 }
2638
2639 print_3_columns() {
2640 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2641 }
2642
2643 show_list() {
2644 suffix=_$1
2645 shift
2646 echo $* | sed s/$suffix//g | print_3_columns
2647 exit 0
2648 }
2649
2650 rand_list(){
2651 IFS=', '
2652 set -- $*
2653 unset IFS
2654 for thing; do
2655 comp=${thing%:*}
2656 prob=${thing#$comp}
2657 prob=${prob#:}
2658 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2659 echo "prob ${prob:-0.5}"
2660 printf '%s\n' $comp
2661 done
2662 }
2663
2664 do_random(){
2665 action=$1
2666 shift
2667 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2668 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2669 }
2670
2671 for opt do
2672 optval="${opt#*=}"
2673 case "$opt" in
2674 --extra-ldflags=*)
2675 add_ldflags $optval
2676 ;;
2677 --extra-ldexeflags=*)
2678 add_ldexeflags $optval
2679 ;;
2680 --extra-libs=*)
2681 add_extralibs $optval
2682 ;;
2683 --disable-devices)
2684 disable $INDEV_LIST $OUTDEV_LIST
2685 ;;
2686 --enable-debug=*)
2687 debuglevel="$optval"
2688 ;;
2689 --disable-programs)
2690 disable $PROGRAM_LIST
2691 ;;
2692 --disable-everything)
2693 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2694 ;;
2695 --disable-all)
2696 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2697 disable $LIBRARY_LIST $PROGRAM_LIST doc
2698 ;;
2699 --enable-random|--disable-random)
2700 action=${opt%%-random}
2701 do_random ${action#--} $COMPONENT_LIST
2702 ;;
2703 --enable-random=*|--disable-random=*)
2704 action=${opt%%-random=*}
2705 do_random ${action#--} $optval
2706 ;;
2707 --enable-*=*|--disable-*=*)
2708 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2709 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2710 eval list=\$$(toupper $thing)_LIST
2711 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2712 $action $(filter "$name" $list)
2713 ;;
2714 --enable-avserver|--disable-avserver*)
2715 warn "avserver has been removed, the ${opt} option is only"\
2716 "provided for compatibility and will be removed in the future"
2717 ;;
2718 --enable-?*|--disable-?*)
2719 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2720 if is_in $option $COMPONENT_LIST; then
2721 test $action = disable && action=unset
2722 eval $action \$$(toupper ${option%s})_LIST
2723 elif is_in $option $CMDLINE_SELECT; then
2724 $action $option
2725 else
2726 die_unknown $opt
2727 fi
2728 ;;
2729 --list-*)
2730 NAME="${opt#--list-}"
2731 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2732 NAME=${NAME%s}
2733 eval show_list $NAME \$$(toupper $NAME)_LIST
2734 ;;
2735 --help|-h) show_help
2736 ;;
2737 *)
2738 optname="${opt%%=*}"
2739 optname="${optname#--}"
2740 optname=$(echo "$optname" | sed 's/-/_/g')
2741 if is_in $optname $CMDLINE_SET; then
2742 eval $optname='$optval'
2743 elif is_in $optname $CMDLINE_APPEND; then
2744 append $optname "$optval"
2745 else
2746 die_unknown $opt
2747 fi
2748 ;;
2749 esac
2750 done
2751
2752 for e in $env; do
2753 eval "export $e"
2754 done
2755
2756 disabled logging && logfile=/dev/null
2757
2758 # Disable all the library-specific components if the library itself
2759 # is disabled, see AVCODEC_LIST and following _LIST variables.
2760
2761 disable_components(){
2762 disabled ${1} && disable $(
2763 eval components="\$$(toupper ${1})_COMPONENTS"
2764 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2765 )
2766 }
2767
2768 map 'disable_components $v' $LIBRARY_LIST
2769
2770 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2771 set >> $logfile
2772
2773 case "$toolchain" in
2774 *-asan)
2775 cc_default="${toolchain%-asan}"
2776 add_cflags -fsanitize=address
2777 add_ldflags -fsanitize=address
2778 ;;
2779 *-msan)
2780 cc_default="${toolchain%-msan}"
2781 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2782 add_ldflags -fsanitize=memory
2783 ;;
2784 *-tsan)
2785 cc_default="${toolchain%-tsan}"
2786 add_cflags -fsanitize=thread -pie
2787 add_ldflags -fsanitize=thread -pie
2788 case "$toolchain" in
2789 gcc-tsan)
2790 add_cflags -fPIC
2791 add_ldflags -fPIC
2792 ;;
2793 esac
2794 ;;
2795 *-usan)
2796 cc_default="${toolchain%-usan}"
2797 add_cflags -fsanitize=undefined
2798 add_ldflags -fsanitize=undefined
2799 case "$toolchain" in
2800 clang-usan)
2801 add_cflags -O1
2802 ;;
2803 esac
2804 ;;
2805 valgrind-*)
2806 target_exec_default="valgrind"
2807 case "$toolchain" in
2808 valgrind-massif)
2809 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2810 ;;
2811 valgrind-memcheck)
2812 target_exec_args="--track-origins=yes --leak-check=full"
2813 ;;
2814 esac
2815 ;;
2816 msvc)
2817 # Check whether the current MSVC version needs the C99 converter.
2818 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2819 # support enough of C99 to build libav. Default to the new
2820 # behaviour if the regexp was unable to match anything, since this
2821 # successfully parses the version number of existing supported
2822 # versions that require the converter (MSVC 2010 and 2012).
2823 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2824 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2825 cc_default="cl"
2826 else
2827 cc_default="c99wrap cl"
2828 fi
2829 ld_default="$source_path/compat/windows/mslink"
2830 nm_default="dumpbin -symbols"
2831 ar_default="lib"
2832 case "$arch" in
2833 arm*)
2834 as_default="armasm"
2835 ;;
2836 esac
2837 target_os_default="win32"
2838 # Use a relative path for TMPDIR. This makes sure all the
2839 # ffconf temp files are written with a relative path, avoiding
2840 # issues with msys/win32 path conversion for MSVC parameters
2841 # such as -Fo<file> or -out:<file>.
2842 TMPDIR=.
2843 ;;
2844 icl)
2845 cc_default="icl"
2846 ld_default="xilink"
2847 nm_default="dumpbin -symbols"
2848 ar_default="xilib"
2849 target_os_default="win32"
2850 TMPDIR=.
2851 ;;
2852 gcov)
2853 add_cflags -fprofile-arcs -ftest-coverage
2854 add_ldflags -fprofile-arcs -ftest-coverage
2855 ;;
2856 llvm-cov)
2857 add_cflags -fprofile-arcs -ftest-coverage
2858 add_ldflags --coverage
2859 ;;
2860 hardened)
2861 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2862 add_cflags -fno-strict-overflow -fstack-protector-all
2863 add_ldflags -Wl,-z,relro -Wl,-z,now
2864 ;;
2865 ?*)
2866 die "Unknown toolchain $toolchain"
2867 ;;
2868 esac
2869
2870 test -n "$cross_prefix" && enable cross_compile
2871
2872 if enabled cross_compile; then
2873 test -n "$arch" && test -n "$target_os" ||
2874 die "Must specify target arch and OS when cross-compiling"
2875 fi
2876
2877 ar_default="${cross_prefix}${ar_default}"
2878 cc_default="${cross_prefix}${cc_default}"
2879 occ_default="${cross_prefix}${occ_default}"
2880 nm_default="${cross_prefix}${nm_default}"
2881 pkg_config_default="${cross_prefix}${pkg_config_default}"
2882 ranlib="${cross_prefix}${ranlib}"
2883 strip="${cross_prefix}${strip}"
2884
2885 sysinclude_default="${sysroot}/usr/include"
2886
2887 set_default arch cc pkg_config sysinclude target_exec target_os
2888 enabled cross_compile || host_cc_default=$cc
2889 set_default host_cc
2890
2891 if ! $pkg_config --version >/dev/null 2>&1; then
2892 warn "$pkg_config not found, library detection may fail."
2893 pkg_config=false
2894 fi
2895
2896 exesuf() {
2897 case $1 in
2898 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2899 esac
2900 }
2901
2902 EXESUF=$(exesuf $target_os)
2903 HOSTEXESUF=$(exesuf $host_os)
2904
2905 # set temporary file name
2906 : ${TMPDIR:=$TEMPDIR}
2907 : ${TMPDIR:=$TMP}
2908 : ${TMPDIR:=/tmp}
2909
2910 if ! check_cmd mktemp -u XXXXXX; then
2911 # simple replacement for missing mktemp
2912 # NOT SAFE FOR GENERAL USE
2913 mktemp(){
2914 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2915 }
2916 fi
2917
2918 tmpfile(){
2919 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2920 (set -C; exec > $tmp) 2>/dev/null ||
2921 die "Unable to create temporary file in $TMPDIR."
2922 append TMPFILES $tmp
2923 eval $1=$tmp
2924 }
2925
2926 trap 'rm -f -- $TMPFILES' EXIT
2927
2928 tmpfile TMPASM .asm
2929 tmpfile TMPC .c
2930 tmpfile TMPE $EXESUF
2931 tmpfile TMPH .h
2932 tmpfile TMPO .o
2933 tmpfile TMPS .S
2934 tmpfile TMPSH .sh
2935 tmpfile TMPV .ver
2936
2937 unset -f mktemp
2938
2939 chmod +x $TMPE
2940
2941 # make sure we can execute files in $TMPDIR
2942 cat > $TMPSH 2>> $logfile <<EOF
2943 #! /bin/sh
2944 EOF
2945 chmod +x $TMPSH >> $logfile 2>&1
2946 if ! $TMPSH >> $logfile 2>&1; then
2947 cat <<EOF
2948 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2949 variable to another directory and make sure that it is not mounted noexec.
2950 EOF
2951 die "Sanity test failed."
2952 fi
2953
2954 armasm_flags(){
2955 for flag; do
2956 case $flag in
2957 # Filter out MSVC cl.exe options from cflags that shouldn't
2958 # be passed to gas-preprocessor
2959 -M[TD]*) ;;
2960 *) echo $flag ;;
2961 esac
2962 done
2963 }
2964
2965 ccc_flags(){
2966 for flag; do
2967 case $flag in
2968 -std=c99) echo -c99 ;;
2969 -mcpu=*) echo -arch ${flag#*=} ;;
2970 -mieee) echo -ieee ;;
2971 -O*|-fast) echo $flag ;;
2972 -fno-math-errno) echo -assume nomath_errno ;;
2973 -g) echo -g3 ;;
2974 -Wall) echo -msg_enable level2 ;;
2975 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2976 -Wl,*) echo $flag ;;
2977 -f*|-W*) ;;
2978 *) echo $flag ;;
2979 esac
2980 done
2981 }
2982
2983 cparser_flags(){
2984 for flag; do
2985 case $flag in
2986 -Wno-switch) echo -Wno-switch-enum ;;
2987 -Wno-format-zero-length) ;;
2988 -Wdisabled-optimization) ;;
2989 -Wno-pointer-sign) echo -Wno-other ;;
2990 *) echo $flag ;;
2991 esac
2992 done
2993 }
2994
2995 msvc_common_flags(){
2996 for flag; do
2997 case $flag in
2998 # In addition to specifying certain flags under the compiler
2999 # specific filters, they must be specified here as well or else the
3000 # generic catch all at the bottom will print the original flag.
3001 -Wall) ;;
3002 -std=c99) ;;
3003 # Common flags
3004 -fomit-frame-pointer) ;;
3005 -g) echo -Z7 ;;
3006 -fno-math-errno) ;;
3007 -fno-common) ;;
3008 -fno-signed-zeros) ;;
3009 -fPIC) ;;
3010 -mthumb) ;;
3011 -march=*) ;;
3012 -lz) echo zlib.lib ;;
3013 -lavifil32) echo vfw32.lib ;;
3014 -lavicap32) echo vfw32.lib user32.lib ;;
3015 -lx264) echo libx264.lib ;;
3016 -l*) echo ${flag#-l}.lib ;;
3017 -L*) echo -libpath:${flag#-L} ;;
3018 *) echo $flag ;;
3019 esac
3020 done
3021 }
3022
3023 msvc_flags(){
3024 msvc_common_flags "$@"
3025 for flag; do
3026 case $flag in
3027 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3028 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3029 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3030 -wd4273 -wd4554 -wd4701 ;;
3031 esac
3032 done
3033 }
3034
3035 icl_flags(){
3036 msvc_common_flags "$@"
3037 for flag; do
3038 case $flag in
3039 # Despite what Intel's documentation says -Wall, which is supported
3040 # on Windows, does enable remarks so disable them here.
3041 -Wall) echo $flag -Qdiag-disable:remark ;;
3042 -std=c99) echo -Qstd=c99 ;;
3043 esac
3044 done
3045 }
3046
3047 pgi_flags(){
3048 for flag; do
3049 case $flag in
3050 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3051 -fomit-frame-pointer) echo -Mnoframe ;;
3052 -g) echo -gopt ;;
3053 *) echo $flag ;;
3054 esac
3055 done
3056 }
3057
3058 suncc_flags(){
3059 for flag; do
3060 case $flag in
3061 -march=*|-mcpu=*)
3062 case "${flag#*=}" in
3063 native) echo -xtarget=native ;;
3064 v9|niagara) echo -xarch=sparc ;;
3065 ultrasparc) echo -xarch=sparcvis ;;
3066 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3067 i586|pentium) echo -xchip=pentium ;;
3068 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3069 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3070 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3071 pentium4*) echo -xtarget=pentium4 ;;
3072 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3073 *-sse3) echo -xarch=sse3 ;;
3074 core2) echo -xarch=ssse3 -xchip=core2 ;;
3075 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3076 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3077 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3078 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3079 k8|opteron|athlon64|athlon-fx)
3080 echo -xarch=sse2a ;;
3081 athlon*) echo -xarch=pentium_proa ;;
3082 esac
3083 ;;
3084 -std=c99) echo -xc99 ;;
3085 -fomit-frame-pointer) echo -xregs=frameptr ;;
3086 -fPIC) echo -KPIC -xcode=pic32 ;;
3087 -W*,*) echo $flag ;;
3088 -f*-*|-W*|-mimpure-text) ;;
3089 -shared) echo -G ;;
3090 *) echo $flag ;;
3091 esac
3092 done
3093 }
3094
3095 tms470_flags(){
3096 for flag; do
3097 case $flag in
3098 -march=*|-mcpu=*)
3099 case "${flag#*=}" in
3100 armv7-a|cortex-a*) echo -mv=7a8 ;;
3101 armv7-r|cortex-r*) echo -mv=7r4 ;;
3102 armv7-m|cortex-m*) echo -mv=7m3 ;;
3103 armv6*|arm11*) echo -mv=6 ;;
3104 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3105 echo -mv=5e ;;
3106 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3107 esac
3108 ;;
3109 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3110 -mfpu=vfp) echo --float_support=vfpv2 ;;
3111 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3112 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3113 -msoft-float) echo --float_support=vfplib ;;
3114 -O[0-3]|-mf=*) echo $flag ;;
3115 -g) echo -g -mn ;;
3116 -pds=*) echo $flag ;;
3117 -D*|-I*) echo $flag ;;
3118 --gcc|--abi=*) echo $flag ;;
3119 -me) echo $flag ;;
3120 esac
3121 done
3122 }
3123
3124 probe_cc(){
3125 pfx=$1
3126 _cc=$2
3127
3128 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3129 unset _ld_o _ldflags _ld_lib _ld_path
3130 unset _depflags _DEPCMD _DEPFLAGS
3131 _flags_filter=echo
3132
3133 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3134 _type=llvm_gcc
3135 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3136 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3137 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3138 _cflags_speed='-O3'
3139 _cflags_size='-Os'
3140 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3141 _type=gcc
3142 gcc_version=$($_cc --version | head -n1)
3143 gcc_basever=$($_cc -dumpversion)
3144 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3145 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3146 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3147 if ! $_cc -dumpversion | grep -q '^2\.'; then
3148 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3149 fi
3150 _cflags_speed='-O3'
3151 _cflags_size='-Os'
3152 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3153 _type=icc
3154 _ident=$($_cc --version | head -n1)
3155 _depflags='-MMD'
3156 _cflags_speed='-O3'
3157 _cflags_size='-Os'
3158 _cflags_noopt='-O1'
3159 elif $_cc -v 2>&1 | grep -q xlc; then
3160 _type=xlc
3161 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3162 _cflags_speed='-O5'
3163 _cflags_size='-O5 -qcompact'
3164 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3165 _type=ccc
3166 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3167 _DEPFLAGS='-M'
3168 _cflags_speed='-fast'
3169 _cflags_size='-O1'
3170 _flags_filter=ccc_flags
3171 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3172 test -d "$sysroot" || die "No valid sysroot specified."
3173 _type=armcc
3174 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3175 armcc_conf="$PWD/armcc.conf"
3176 $_cc --arm_linux_configure \
3177 --arm_linux_config_file="$armcc_conf" \
3178 --configure_sysroot="$sysroot" \
3179 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3180 die "Error creating armcc configuration file."
3181 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3182 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3183 as_default="${cross_prefix}gcc"
3184 _depflags='-MMD'
3185 _cflags_speed='-O3'
3186 _cflags_size='-Os'
3187 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3188 _type=tms470
3189 _ident=$($_cc -version | head -n1 | tr -s ' ')
3190 _flags='--gcc --abi=eabi -me'
3191 _cc_e='-ppl -fe=$@'
3192 _cc_o='-fe=$@'
3193 _depflags='-ppa -ppd=$(@:.o=.d)'
3194 _cflags_speed='-O3 -mf=5'
3195 _cflags_size='-O3 -mf=2'
3196 _flags_filter=tms470_flags
3197 elif $_cc -v 2>&1 | grep -q clang; then
3198 _type=clang
3199 _ident=$($_cc --version 2>/dev/null | head -n1)
3200 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3201 _cflags_speed='-O3'
3202 _cflags_size='-Os'
3203 elif $_cc -V 2>&1 | grep -q Sun; then
3204 _type=suncc
3205 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3206 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3207 _DEPFLAGS='-xM1 -xc99'
3208 _ldflags='-std=c99'
3209 _cflags_speed='-O5'
3210 _cflags_size='-O5 -xspace'
3211 _flags_filter=suncc_flags
3212 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3213 _type=pathscale
3214 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3215 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3216 _cflags_speed='-O2'
3217 _cflags_size='-Os'
3218 _flags_filter='filter_out -Wdisabled-optimization'
3219 elif $_cc -v 2>&1 | grep -q Open64; then
3220 _type=open64
3221 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3222 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3223 _cflags_speed='-O2'
3224 _cflags_size='-Os'
3225 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3226 elif $_cc -V 2>&1 | grep -q Portland; then
3227 _type=pgi
3228 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3229 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3230 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3231 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3232 _cflags_noopt="-O1"
3233 _flags_filter=pgi_flags
3234 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3235 _type=armasm
3236 _ident=$($_cc | head -n1)
3237 # 4509: "This form of conditional instruction is deprecated"
3238 _flags="-nologo -ignore 4509"
3239 _flags_filter=armasm_flags
3240 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3241 _type=msvc
3242 _ident=$($_cc 2>&1 | head -n1)
3243 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3244 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3245 _cflags_speed="-O2"
3246 _cflags_size="-O1"
3247 if $_cc -nologo- 2>&1 | grep -q Linker; then
3248 _ld_o='-out:$@'
3249 else
3250 _ld_o='-Fe$@'
3251 fi
3252 _cc_o='-Fo$@'
3253 _cc_e='-P -Fi$@'
3254 _flags_filter=msvc_flags
3255 _ld_lib='lib%.a'
3256 _ld_path='-libpath:'
3257 _flags='-nologo'
3258 elif $_cc 2>&1 | grep -q Intel; then
3259 _type=icl
3260 _ident=$($_cc 2>&1 | head -n1)
3261 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3262 # Not only is O3 broken on 13.x+ but it is slower on all previous
3263 # versions (tested) as well.
3264 _cflags_speed="-O2"
3265 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3266 if $_cc 2>&1 | grep -q Linker; then
3267 _ld_o='-out:$@'
3268 else
3269 _ld_o='-Fe$@'
3270 fi
3271 _cc_o='-Fo$@'
3272 _cc_e='-P'
3273 _flags_filter=icl_flags
3274 _ld_lib='lib%.a'
3275 _ld_path='-libpath:'
3276 # -Qdiag-error to make icl error when seeing certain unknown arguments
3277 _flags='-nologo -Qdiag-error:4044,10157'
3278 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3279 # with MSVC which enables it by default.
3280 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3281 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3282 # lld can emulate multiple different linkers; in ms link.exe mode,
3283 # the -? parameter gives the help output which contains an identifyable
3284 # string, while it gives an error in other modes.
3285 _type=lld-link
3286 # The link.exe mode doesn't have a switch for getting the version,
3287 # but we can force it back to gnu mode and get the version from there.
3288 _ident=$($_cc -flavor gnu --version)
3289 _ld_o='-out:$@'
3290 _flags_filter=msvc_flags
3291 _ld_lib='lib%.a'
3292 _ld_path='-libpath:'
3293 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3294 _type=cparser
3295 _ident=$($_cc --version | head -n1)
3296 _depflags='-MMD'
3297 _cflags_speed='-O4'
3298 _cflags_size='-O2'
3299 _flags_filter=cparser_flags
3300 fi
3301
3302 eval ${pfx}_type=\$_type
3303 eval ${pfx}_ident=\$_ident
3304 }
3305
3306 set_ccvars(){
3307 eval ${1}_C=\${_cc_c-\${${1}_C}}
3308 eval ${1}_E=\${_cc_e-\${${1}_E}}
3309 eval ${1}_O=\${_cc_o-\${${1}_O}}
3310
3311 if [ -n "$_depflags" ]; then
3312 eval ${1}_DEPFLAGS=\$_depflags
3313 else
3314 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3315 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3316 eval DEP${1}FLAGS=\$_flags
3317 fi
3318 }
3319
3320 probe_cc cc "$cc"
3321 cflags_filter=$_flags_filter
3322 cflags_speed=$_cflags_speed
3323 cflags_size=$_cflags_size
3324 cflags_noopt=$_cflags_noopt
3325 add_cflags $_flags $_cflags
3326 cc_ldflags=$_ldflags
3327 set_ccvars CC
3328
3329 probe_cc hostcc "$host_cc"
3330 host_cflags_filter=$_flags_filter
3331 add_host_cflags $_flags $_cflags
3332 set_ccvars HOSTCC
3333
3334 test -n "$cc_type" && enable $cc_type ||
3335 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3336
3337 : ${as_default:=$cc}
3338 : ${objcc_default:=$cc}
3339 : ${dep_cc_default:=$cc}
3340 : ${ld_default:=$cc}
3341 : ${host_ld_default:=$host_cc}
3342 set_default ar as objcc dep_cc ld host_ld
3343
3344 probe_cc as "$as"
3345 asflags_filter=$_flags_filter
3346 add_asflags $_flags $_cflags
3347 set_ccvars AS
3348
3349 probe_cc objcc "$objcc"
3350 objcflags_filter=$_flags_filter
3351 add_objcflags $_flags $_cflags
3352 set_ccvars OBJC
3353
3354 probe_cc ld "$ld"
3355 ldflags_filter=$_flags_filter
3356 add_ldflags $_flags $_ldflags
3357 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3358 LD_O=${_ld_o-$LD_O}
3359 LD_LIB=${_ld_lib-$LD_LIB}
3360 LD_PATH=${_ld_path-$LD_PATH}
3361
3362 probe_cc hostld "$host_ld"
3363 host_ldflags_filter=$_flags_filter
3364 add_host_ldflags $_flags $_ldflags
3365 HOSTLD_O=${_ld_o-$HOSTLD_O}
3366
3367 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3368 probe_cc depcc "$dep_cc"
3369 CCDEP=${_DEPCMD:-$DEPCMD}
3370 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3371 DEPCCFLAGS=$_flags
3372 fi
3373
3374 if $ar 2>&1 | grep -q Microsoft; then
3375 arflags="-nologo"
3376 ar_o='-out:$@'
3377 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3378 arflags="rq"
3379 ar_o='$@'
3380 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3381 arflags='-Xany -r -c'
3382 ar_o='$@'
3383 else
3384 arflags="rc"
3385 ar_o='$@'
3386 fi
3387
3388 add_cflags $extra_cflags
3389 add_objcflags $extra_objcflags
3390 add_asflags $extra_cflags
3391
3392 if test -n "$sysroot"; then
3393 case "$cc_type" in
3394 gcc|llvm_gcc|clang)
3395 add_cppflags --sysroot="$sysroot"
3396 add_ldflags --sysroot="$sysroot"
3397 ;;
3398 tms470)
3399 add_cppflags -I"$sysinclude"
3400 add_ldflags --sysroot="$sysroot"
3401 ;;
3402 esac
3403 fi
3404
3405 if test "$cpu" = host; then
3406 enabled cross_compile &&
3407 die "--cpu=host makes no sense when cross-compiling."
3408
3409 case "$cc_type" in
3410 gcc|llvm_gcc)
3411 check_native(){
3412 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3413 sed -n "/cc1.*$1=/{
3414 s/.*$1=\\([^ ]*\\).*/\\1/
3415 p
3416 q
3417 }" $TMPE
3418 }
3419 cpu=$(check_native -march || check_native -mcpu)
3420 ;;
3421 esac
3422
3423 test "${cpu:-host}" = host &&
3424 die "--cpu=host not supported with compiler $cc"
3425 fi
3426
3427 # Deal with common $arch aliases
3428 case "$arch" in
3429 aarch64|arm64)
3430 arch="aarch64"
3431 ;;
3432 arm*)
3433 arch="arm"
3434 ;;
3435 mips*|IP*)
3436 case "$arch" in
3437 *el)
3438 add_cppflags -EL
3439 add_ldflags -EL
3440 ;;
3441 *eb)
3442 add_cppflags -EB
3443 add_ldflags -EB
3444 ;;
3445 esac
3446 arch="mips"
3447 ;;
3448 parisc*|hppa*)
3449 arch="parisc"
3450 ;;
3451 "Power Macintosh"|ppc*|powerpc*)
3452 arch="ppc"
3453 ;;
3454 s390|s390x)
3455 arch="s390"
3456 ;;
3457 sh4|sh)
3458 arch="sh4"
3459 ;;
3460 sun4u|sparc*)
3461 arch="sparc"
3462 ;;
3463 tilegx|tile-gx)
3464 arch="tilegx"
3465 ;;
3466 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3467 arch="x86"
3468 ;;
3469 esac
3470
3471 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3472 enable $arch
3473
3474 # Add processor-specific flags
3475 if enabled aarch64; then
3476
3477 case $cpu in
3478 armv*)
3479 cpuflags="-march=$cpu"
3480 ;;
3481 *)
3482 cpuflags="-mcpu=$cpu"
3483 ;;
3484 esac
3485
3486 elif enabled alpha; then
3487
3488 cpuflags="-mcpu=$cpu"
3489
3490 elif enabled arm; then
3491
3492 check_arm_arch() {
3493 check_cpp_condition stddef.h \
3494 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3495 $cpuflags
3496 }
3497
3498 probe_arm_arch() {
3499 if check_arm_arch 4; then echo armv4
3500 elif check_arm_arch 4T; then echo armv4t
3501 elif check_arm_arch 5; then echo armv5
3502 elif check_arm_arch 5E; then echo armv5e
3503 elif check_arm_arch 5T; then echo armv5t
3504 elif check_arm_arch 5TE; then echo armv5te
3505 elif check_arm_arch 5TEJ; then echo armv5te
3506 elif check_arm_arch 6; then echo armv6
3507 elif check_arm_arch 6J; then echo armv6j
3508 elif check_arm_arch 6K; then echo armv6k
3509 elif check_arm_arch 6Z; then echo armv6z
3510 elif check_arm_arch 6ZK; then echo armv6zk
3511 elif check_arm_arch 6T2; then echo armv6t2
3512 elif check_arm_arch 7; then echo armv7
3513 elif check_arm_arch 7A 7_A; then echo armv7-a
3514 elif check_arm_arch 7S; then echo armv7-a
3515 elif check_arm_arch 7R 7_R; then echo armv7-r
3516 elif check_arm_arch 7M 7_M; then echo armv7-m
3517 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3518 elif check_arm_arch 8A 8_A; then echo armv8-a
3519 fi
3520 }
3521
3522 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3523
3524 case $cpu in
3525 armv*)
3526 cpuflags="-march=$cpu"
3527 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3528 ;;
3529 *)
3530 cpuflags="-mcpu=$cpu"
3531 case $cpu in
3532 cortex-a*) subarch=armv7a ;;
3533 cortex-r*) subarch=armv7r ;;
3534 cortex-m*) enable thumb; subarch=armv7m ;;
3535 arm11*) subarch=armv6 ;;
3536 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3537 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3538 *) subarch=$(probe_arm_arch) ;;
3539 esac
3540 ;;
3541 esac
3542
3543 case "$subarch" in
3544 armv5t*) enable fast_clz ;;
3545 armv[6-8]*) enable fast_clz fast_unaligned ;;
3546 esac
3547
3548 elif enabled avr32; then
3549
3550 case $cpu in
3551 ap7[02]0[0-2])
3552 subarch="avr32_ap"
3553 cpuflags="-mpart=$cpu"
3554 ;;
3555 ap)
3556 subarch="avr32_ap"
3557 cpuflags="-march=$cpu"
3558 ;;
3559 uc3[ab]*)
3560 subarch="avr32_uc"
3561 cpuflags="-mcpu=$cpu"
3562 ;;
3563 uc)
3564 subarch="avr32_uc"
3565 cpuflags="-march=$cpu"
3566 ;;
3567 esac
3568
3569 elif enabled bfin; then
3570
3571 cpuflags="-mcpu=$cpu"
3572
3573 elif enabled mips; then
3574
3575 cpuflags="-march=$cpu"
3576
3577 elif enabled ppc; then
3578
3579 disable ldbrx
3580
3581 case $(tolower $cpu) in
3582 601|ppc601|powerpc601)
3583 cpuflags="-mcpu=601"
3584 disable altivec
3585 ;;
3586 603*|ppc603*|powerpc603*)
3587 cpuflags="-mcpu=603"
3588 disable altivec
3589 ;;
3590 604*|ppc604*|powerpc604*)
3591 cpuflags="-mcpu=604"
3592 disable altivec
3593 ;;
3594 g3|75*|ppc75*|powerpc75*)
3595 cpuflags="-mcpu=750"
3596 disable altivec
3597 ;;
3598 g4|745*|ppc745*|powerpc745*)
3599 cpuflags="-mcpu=7450"
3600 disable vsx
3601 ;;
3602 74*|ppc74*|powerpc74*)
3603 cpuflags="-mcpu=7400"
3604 disable vsx
3605 ;;
3606 g5|970|ppc970|powerpc970)
3607 cpuflags="-mcpu=970"
3608 disable vsx
3609 ;;
3610 power[3-6]*)
3611 cpuflags="-mcpu=$cpu"
3612 disable vsx
3613 ;;
3614 power[7-8]*)
3615 cpuflags="-mcpu=$cpu"
3616 enable ldbrx
3617 ;;
3618 cell)
3619 cpuflags="-mcpu=cell"
3620 enable ldbrx
3621 disable vsx
3622 ;;
3623 e500mc)
3624 cpuflags="-mcpu=e500mc"
3625 disable altivec
3626 ;;
3627 e500v2)
3628 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3629 disable altivec
3630 disable dcbzl
3631 ;;
3632 e500)
3633 cpuflags="-mcpu=8540 -mhard-float"
3634 disable altivec
3635 disable dcbzl
3636 ;;
3637 esac
3638
3639 elif enabled sparc; then
3640
3641 case $cpu in
3642 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3643 cpuflags="-mcpu=$cpu"
3644 ;;
3645 ultrasparc*|niagara[234])
3646 cpuflags="-mcpu=$cpu"
3647 ;;
3648 esac
3649
3650 elif enabled x86; then
3651
3652 case $cpu in
3653 i[345]86|pentium)
3654 cpuflags="-march=$cpu"
3655 disable i686
3656 disable mmx
3657 ;;
3658 # targets that do NOT support nopl and conditional mov (cmov)
3659 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3660 cpuflags="-march=$cpu"
3661 disable i686
3662 ;;
3663 # targets that do support nopl and conditional mov (cmov)
3664 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3665 cpuflags="-march=$cpu"
3666 enable i686
3667 enable fast_cmov
3668 ;;
3669 # targets that do support conditional mov but on which it's slow
3670 pentium4|pentium4m|prescott|nocona)
3671 cpuflags="-march=$cpu"
3672 enable i686
3673 disable fast_cmov
3674 ;;
3675 esac
3676
3677 fi
3678
3679 if [ "$cpu" != generic ]; then
3680 add_cflags $cpuflags
3681 add_asflags $cpuflags
3682 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3683 fi
3684
3685 # compiler sanity check
3686 check_exec <<EOF
3687 int main(void){ return 0; }
3688 EOF
3689 if test "$?" != 0; then
3690 echo "$cc is unable to create an executable file."
3691 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3692 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3693 echo "Only do this if you know what cross compiling means."
3694 fi
3695 die "C compiler test failed."
3696 fi
3697
3698 add_cppflags -D_ISOC99_SOURCE
3699
3700 # some compilers silently accept -std=c11, so we also need to check that the
3701 # version macro is defined properly
3702 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3703 add_cflags -std=c11
3704 else
3705 check_cflags -std=c99
3706 fi
3707
3708 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3709 #include <stdlib.h>
3710 EOF
3711 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3712 #include <stdlib.h>
3713 EOF
3714
3715 add_host_cppflags -D_ISOC99_SOURCE
3716 check_host_cflags -std=c99
3717 check_host_cflags -Wall
3718 check_host_cflags -O3
3719
3720 check_64bit(){
3721 arch32=$1
3722 arch64=$2
3723 expr