avconv: VAAPI hwcontext initialisation and hwaccel helper
[libav.git] / configure
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CommitLineData
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.
11LC_ALL=C
12export LC_ALL
13
14# make sure we are running under a compatible shell
15# try to make this part work with most shells
16
17try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20}
21
22unset foo
23(: ${foo%%bar}) 2> /dev/null
24E1="$?"
25
26(: ${foo?}) 2> /dev/null
27E2="$?"
28
29if 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
55fi
56
57test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59show_help(){
60 cat <<EOF
61Usage: configure [options]
62Options: [defaults in brackets after descriptions]
63
64Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$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
91Licensing 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
98Configuration 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
107Program 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
114Component options:
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
134
135Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
141
142Individual component options:
143 --disable-everything disable all components listed below
144 --disable-encoder=NAME disable encoder NAME
145 --enable-encoder=NAME enable encoder NAME
146 --disable-encoders disable all encoders
147 --disable-decoder=NAME disable decoder NAME
148 --enable-decoder=NAME enable decoder NAME
149 --disable-decoders disable all decoders
150 --disable-hwaccel=NAME disable hwaccel NAME
151 --enable-hwaccel=NAME enable hwaccel NAME
152 --disable-hwaccels disable all hwaccels
153 --disable-muxer=NAME disable muxer NAME
154 --enable-muxer=NAME enable muxer NAME
155 --disable-muxers disable all muxers
156 --disable-demuxer=NAME disable demuxer NAME
157 --enable-demuxer=NAME enable demuxer NAME
158 --disable-demuxers disable all demuxers
159 --enable-parser=NAME enable parser NAME
160 --disable-parser=NAME disable parser NAME
161 --disable-parsers disable all parsers
162 --enable-bsf=NAME enable bitstream filter NAME
163 --disable-bsf=NAME disable bitstream filter NAME
164 --disable-bsfs disable all bitstream filters
165 --enable-protocol=NAME enable protocol NAME
166 --disable-protocol=NAME disable protocol NAME
167 --disable-protocols disable all protocols
168 --enable-indev=NAME enable input device NAME
169 --disable-indev=NAME disable input device NAME
170 --disable-indevs disable input devices
171 --enable-outdev=NAME enable output device NAME
172 --disable-outdev=NAME disable output device NAME
173 --disable-outdevs disable output devices
174 --disable-devices disable all devices
175 --enable-filter=NAME enable filter NAME
176 --disable-filter=NAME disable filter NAME
177 --disable-filters disable all filters
178
179External library support:
180 --enable-avisynth enable reading of AviSynth script files [no]
181 --enable-bzlib enable bzlib [autodetect]
182 --enable-cuda enable dynamically linked CUDA [no]
183 --enable-frei0r enable frei0r video filtering
184 --enable-gnutls enable gnutls [no]
185 --enable-libbs2b enable bs2b DSP library [no]
186 --enable-libcdio enable audio CD grabbing with libcdio
187 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
188 and libraw1394 [no]
189 --enable-libdcadec enable DCA decoding via libdcadec [no]
190 --enable-libfaac enable AAC encoding via libfaac [no]
191 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
192 --enable-libfreetype enable libfreetype [no]
193 --enable-libgsm enable GSM de/encoding via libgsm [no]
194 --enable-libilbc enable iLBC de/encoding via libilbc [no]
195 --enable-libkvazaar enable HEVC encoding via libkvazaar [no]
196 --enable-libmfx enable HW acceleration through libmfx
197 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
198 --enable-libnpp enable NVIDIA Performance Primitives-based code [no]
199 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
200 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
201 --enable-libopencv enable video filtering via libopencv [no]
202 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
203 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
204 --enable-libopus enable Opus de/encoding via libopus [no]
205 --enable-libpulse enable Pulseaudio input via libpulse [no]
206 --enable-librtmp enable RTMP[E] support via librtmp [no]
207 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
208 --enable-libsnappy enable Snappy compression [no]
209 --enable-libspeex enable Speex de/encoding via libspeex [no]
210 --enable-libtheora enable Theora encoding via libtheora [no]
211 --enable-libtwolame enable MP2 encoding via libtwolame [no]
212 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
213 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
214 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
215 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
216 --enable-libwavpack enable wavpack encoding via libwavpack [no]
217 --enable-libwebp enable WebP encoding via libwebp [no]
218 --enable-libx264 enable H.264 encoding via x264 [no]
219 --enable-libx265 enable HEVC encoding via x265 [no]
220 --enable-libxavs enable AVS encoding via xavs [no]
221 --enable-libxcb enable X11 grabbing using XCB [no]
222 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
223 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
224 --enable-libxvid enable Xvid encoding via xvidcore,
225 native MPEG-4/Xvid encoder exists [no]
226 --enable-mmal enable decoding via MMAL [no]
227 --enable-nvenc enable encoding via NVENC [no]
228 --enable-openssl enable openssl [no]
229 --enable-x11grab enable X11 grabbing (legacy) [no]
230 --enable-zlib enable zlib [autodetect]
231
232Toolchain options:
233 --arch=ARCH select architecture [$arch]
234 --cpu=CPU select the minimum required CPU (affects
235 instruction selection, may crash on older CPUs)
236 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
237 --enable-cross-compile assume a cross-compiler is used
238 --sysroot=PATH root of cross-build tree
239 --sysinclude=PATH location of cross-build system headers
240 --target-os=OS compiler targets OS [$target_os]
241 --target-exec=CMD command to run executables on target
242 --target-path=DIR path to view of build directory on target
243 --target-samples=DIR path to samples directory on target
244 --toolchain=NAME set tool defaults according to NAME
245 --nm=NM use nm tool
246 --ar=AR use archive tool AR [$ar_default]
247 --as=AS use assembler AS [$as_default]
248 --cc=CC use C compiler CC [$cc_default]
249 --objcc=OCC use ObjC compiler OCC [$cc_default]
250 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
251 --ld=LD use linker LD
252 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
253 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
254 --host-cc=HOSTCC use host C compiler HOSTCC
255 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
256 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
257 --host-ld=HOSTLD use host linker HOSTLD
258 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
259 --host-libs=HLIBS use libs HLIBS when linking for host
260 --host-os=OS compiler host OS [$target_os]
261 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
262 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
263 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
264 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
265 --extra-libs=ELIBS add ELIBS [$ELIBS]
266 --extra-version=STRING version string suffix []
267 --optflags=OPTFLAGS override optimization-related compiler flags
268 --build-suffix=SUFFIX library name suffix []
269 --enable-pic build position-independent code
270 --enable-thumb compile for Thumb instruction set
271 --enable-lto use link-time optimization
272 --env="ENV=override" override the environment variables
273
274Advanced options (experts only):
275 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
276 --custom-allocator=NAME use a supported custom allocator
277 --disable-symver disable symbol versioning
278 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
279 --disable-safe-bitstream-reader
280 disable buffer boundary checking in bitreaders
281 (faster, but may crash)
282 --enable-memalign-hack emulate memalign, interferes with memory debuggers
283 --enable-sram allow use of on-chip SRAM
284
285Optimization options (experts only):
286 --disable-asm disable all assembly optimizations
287 --disable-altivec disable AltiVec optimizations
288 --disable-vsx disable VSX optimizations
289 --disable-power8 disable POWER8 optimizations
290 --disable-amd3dnow disable 3DNow! optimizations
291 --disable-amd3dnowext disable 3DNow! extended optimizations
292 --disable-mmx disable MMX optimizations
293 --disable-mmxext disable MMXEXT optimizations
294 --disable-sse disable SSE optimizations
295 --disable-sse2 disable SSE2 optimizations
296 --disable-sse3 disable SSE3 optimizations
297 --disable-ssse3 disable SSSE3 optimizations
298 --disable-sse4 disable SSE4 optimizations
299 --disable-sse42 disable SSE4.2 optimizations
300 --disable-avx disable AVX optimizations
301 --disable-xop disable XOP optimizations
302 --disable-fma3 disable FMA3 optimizations
303 --disable-fma4 disable FMA4 optimizations
304 --disable-avx2 disable AVX2 optimizations
305 --disable-armv5te disable armv5te optimizations
306 --disable-armv6 disable armv6 optimizations
307 --disable-armv6t2 disable armv6t2 optimizations
308 --disable-vfp disable VFP optimizations
309 --disable-neon disable NEON optimizations
310 --disable-inline-asm disable use of inline assembly
311 --disable-yasm disable use of nasm/yasm assembly
312
313Developer options (useful when working on Libav itself):
314 --disable-debug disable debugging symbols
315 --enable-debug=LEVEL set the debug level [$debuglevel]
316 --disable-optimizations disable compiler optimizations
317 --enable-extra-warnings enable more compiler warnings
318 --samples=PATH location of test samples for FATE, if not set use
319 \$LIBAV_SAMPLES at make invocation time.
320 --enable-neon-clobber-test check NEON registers for clobbering (should be
321 used only for debugging purposes)
322 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
323 should be used only for debugging purposes)
324 --enable-random randomly enable/disable components
325 --disable-random
326 --enable-random=LIST randomly enable/disable specific components or
327 --disable-random=LIST component groups. LIST is a comma-separated list
328 of NAME[:PROB] entries where NAME is a component
329 (group) and PROB the probability associated with
330 NAME (default 0.5).
331 --random-seed=VALUE seed value for --enable/disable-random
332 --disable-valgrind-backtrace do not print a backtrace under Valgrind
333 (only applies to --disable-optimizations builds)
334
335NOTE: Object files are built at the place where configure is launched.
336EOF
337 exit 0
338}
339
340quotes='""'
341
342log(){
343 echo "$@" >> $logfile
344}
345
346log_file(){
347 log BEGIN $1
348 i=1
349 while read line; do
350 printf '%5s %s\n' "${i}" "${line}"
351 i=$(($i+1))
352 done < $1 >> $logfile
353 log END $1
354}
355
356echolog(){
357 log "$@"
358 echo "$@"
359}
360
361warn(){
362 log "WARNING: $*"
363 WARNINGS="${WARNINGS}WARNING: $*\n"
364}
365
366die(){
367 echolog "$@"
368 cat <<EOF
369
370If you think configure made a mistake, make sure you are using the latest
371version from Git. If the latest version fails, report the problem to the
372libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
373EOF
374 if disabled logging; then
375 cat <<EOF
376Rerun configure with logging enabled (do not use --disable-logging), and
377include the log this produces with your report.
378EOF
379 else
380 cat <<EOF
381Include the log file "$logfile" produced by configure as this will help
382solving the problem.
383EOF
384 fi
385 exit 1
386}
387
388# Avoid locale weirdness, besides we really just want to translate ASCII.
389toupper(){
390 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
391}
392
393tolower(){
394 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
395}
396
397c_escape(){
398 echo "$*" | sed 's/["\\]/\\\0/g'
399}
400
401sh_quote(){
402 v=$(echo "$1" | sed "s/'/'\\\\''/g")
403 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
404 echo "$v"
405}
406
407cleanws(){
408 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
409}
410
411filter(){
412 pat=$1
413 shift
414 for v; do
415 eval "case $v in $pat) echo $v ;; esac"
416 done
417}
418
419filter_out(){
420 pat=$1
421 shift
422 for v; do
423 eval "case $v in $pat) ;; *) echo $v ;; esac"
424 done
425}
426
427map(){
428 m=$1
429 shift
430 for v; do eval $m; done
431}
432
433add_suffix(){
434 suffix=$1
435 shift
436 for v; do echo ${v}${suffix}; done
437}
438
439set_all(){
440 value=$1
441 shift
442 for var in $*; do
443 eval $var=$value
444 done
445}
446
447set_weak(){
448 value=$1
449 shift
450 for var; do
451 eval : \${$var:=$value}
452 done
453}
454
455sanitize_var_name(){
456 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
457}
458
459set_safe(){
460 var=$1
461 shift
462 eval $(sanitize_var_name "$var")='$*'
463}
464
465get_safe(){
466 eval echo \$$(sanitize_var_name "$1")
467}
468
469pushvar(){
470 for pvar in $*; do
471 eval level=\${${pvar}_level:=0}
472 eval ${pvar}_${level}="\$$pvar"
473 eval ${pvar}_level=$(($level+1))
474 done
475}
476
477popvar(){
478 for pvar in $*; do
479 eval level=\${${pvar}_level:-0}
480 test $level = 0 && continue
481 eval level=$(($level-1))
482 eval $pvar="\${${pvar}_${level}}"
483 eval ${pvar}_level=$level
484 eval unset ${pvar}_${level}
485 done
486}
487
488enable(){
489 set_all yes $*
490}
491
492disable(){
493 set_all no $*
494}
495
496enable_weak(){
497 set_weak yes $*
498}
499
500disable_weak(){
501 set_weak no $*
502}
503
504enable_safe(){
505 for var; do
506 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
507 done
508}
509
510disable_safe(){
511 for var; do
512 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
513 done
514}
515
516do_enable_deep(){
517 for var; do
518 enabled $var && continue
519 eval sel="\$${var}_select"
520 eval sgs="\$${var}_suggest"
521 pushvar var sgs
522 enable_deep $sel
523 popvar sgs
524 enable_deep_weak $sgs
525 popvar var
526 done
527}
528
529enable_deep(){
530 do_enable_deep $*
531 enable $*
532}
533
534enable_deep_weak(){
535 for var; do
536 disabled $var && continue
537 pushvar var
538 do_enable_deep $var
539 popvar var
540 enable_weak $var
541 done
542}
543
544enabled(){
545 test "${1#!}" = "$1" && op== || op=!=
546 eval test "x\$${1#!}" $op "xyes"
547}
548
549disabled(){
550 test "${1#!}" = "$1" && op== || op=!=
551 eval test "x\$${1#!}" $op "xno"
552}
553
554enabled_all(){
555 for opt; do
556 enabled $opt || return 1
557 done
558}
559
560disabled_all(){
561 for opt; do
562 disabled $opt || return 1
563 done
564}
565
566enabled_any(){
567 for opt; do
568 enabled $opt && return 0
569 done
570}
571
572disabled_any(){
573 for opt; do
574 disabled $opt && return 0
575 done
576 return 1
577}
578
579set_default(){
580 for opt; do
581 eval : \${$opt:=\$${opt}_default}
582 done
583}
584
585is_in(){
586 value=$1
587 shift
588 for var in $*; do
589 [ $var = $value ] && return 0
590 done
591 return 1
592}
593
594do_check_deps(){
595 for cfg; do
596 cfg="${cfg#!}"
597 enabled ${cfg}_checking && die "Circular dependency for $cfg."
598 disabled ${cfg}_checking && continue
599 enable ${cfg}_checking
600 append allopts $cfg
601
602 eval dep_all="\$${cfg}_deps"
603 eval dep_any="\$${cfg}_deps_any"
604 eval dep_sel="\$${cfg}_select"
605 eval dep_sgs="\$${cfg}_suggest"
606 eval dep_ifa="\$${cfg}_if"
607 eval dep_ifn="\$${cfg}_if_any"
608
609 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
610 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
611 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
612
613 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
614 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
615 enabled_all $dep_all || disable $cfg
616 enabled_any $dep_any || disable $cfg
617 disabled_any $dep_sel && disable $cfg
618
619 if enabled $cfg; then
620 enable_deep $dep_sel
621 enable_deep_weak $dep_sgs
622 fi
623
624 disable ${cfg}_checking
625 done
626}
627
628check_deps(){
629 unset allopts
630
631 do_check_deps "$@"
632
633 for cfg in $allopts; do
634 enabled $cfg || continue
635 eval dep_extralibs="\$${cfg}_extralibs"
636 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
637 done
638}
639
640print_config(){
641 pfx=$1
642 files=$2
643 shift 2
644 map 'eval echo "$v \${$v:-no}"' "$@" |
645 awk "BEGIN { split(\"$files\", files) }
646 {
647 c = \"$pfx\" toupper(\$1);
648 v = \$2;
649 sub(/yes/, 1, v);
650 sub(/no/, 0, v);
651 for (f in files) {
652 file = files[f];
653 if (file ~ /\\.h\$/) {
654 printf(\"#define %s %d\\n\", c, v) >>file;
655 } else if (file ~ /\\.asm\$/) {
656 printf(\"%%define %s %d\\n\", c, v) >>file;
657 } else if (file ~ /\\.mak\$/) {
658 n = -v ? \"\" : \"!\";
659 printf(\"%s%s=yes\\n\", n, c) >>file;
660 }
661 }
662 }"
663}
664
665print_enabled(){
666 suf=$1
667 shift
668 for v; do
669 enabled $v && printf "%s\n" ${v%$suf};
670 done
671}
672
673append(){
674 var=$1
675 shift
676 eval "$var=\"\$$var $*\""
677}
678
679prepend(){
680 var=$1
681 shift
682 eval "$var=\"$* \$$var\""
683}
684
685unique(){
686 var=$1
687 uniq_list=""
688 for tok in $(eval echo \$$var); do
689 uniq_list="$(filter_out $tok $uniq_list) $tok"
690 done
691 eval "$var=\"${uniq_list}\""
692}
693
694add_cppflags(){
695 append CPPFLAGS "$@"
696}
697
698add_cflags(){
699 append CFLAGS $($cflags_filter "$@")
700}
701
702add_asflags(){
703 append ASFLAGS $($asflags_filter "$@")
704}
705
706add_objcflags(){
707 append OBJCFLAGS $($objcflags_filter "$@")
708}
709
710add_ldflags(){
711 append LDFLAGS $($ldflags_filter "$@")
712}
713
714add_ldexeflags(){
715 append LDEXEFLAGS $($ldflags_filter "$@")
716}
717
718add_stripflags(){
719 append STRIPFLAGS "$@"
720}
721
722add_extralibs(){
723 prepend extralibs $($ldflags_filter "$@")
724}
725
726add_host_cppflags(){
727 append host_cppflags "$@"
728}
729
730add_host_cflags(){
731 append host_cflags $($host_cflags_filter "$@")
732}
733
734add_host_ldflags(){
735 append host_ldflags $($host_ldflags_filter "$@")
736}
737
738add_compat(){
739 append compat_objs $1
740 shift
741 map 'add_cppflags -D$v' "$@"
742}
743
744check_cmd(){
745 log "$@"
746 "$@" >> $logfile 2>&1
747}
748
749cc_o(){
750 eval printf '%s\\n' $CC_O
751}
752
753cc_e(){
754 eval printf '%s\\n' $CC_E
755}
756
757check_cc(){
758 log check_cc "$@"
759 cat > $TMPC
760 log_file $TMPC
761 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
762}
763
764check_objcc(){
765 log check_objcc "$@"
766 cat > $TMPC
767 log_file $TMPC
768 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
769}
770
771check_cpp(){
772 log check_cpp "$@"
773 cat > $TMPC
774 log_file $TMPC
775 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
776}
777
778as_o(){
779 eval printf '%s\\n' $AS_O
780}
781
782check_as(){
783 log check_as "$@"
784 cat > $TMPS
785 log_file $TMPS
786 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
787}
788
789check_inline_asm(){
790 log check_inline_asm "$@"
791 name="$1"
792 code="$2"
793 shift 2
794 disable $name
795 check_cc "$@" <<EOF && enable $name
796void foo(void){ __asm__ volatile($code); }
797EOF
798}
799
800check_insn(){
801 log check_insn "$@"
802 check_inline_asm ${1}_inline "\"$2\""
803 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
804}
805
806check_yasm(){
807 log check_yasm "$@"
808 echo "$1" > $TMPS
809 log_file $TMPS
810 shift 1
811 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
812}
813
814ld_o(){
815 eval printf '%s\\n' $LD_O
816}
817
818check_ld(){
819 log check_ld "$@"
820 flags=$(filter_out '-l*' "$@")
821 libs=$(filter '-l*' "$@")
822 check_cc $($cflags_filter $flags) || return
823 flags=$($ldflags_filter $flags)
824 libs=$($ldflags_filter $libs)
825 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
826}
827
828print_include(){
829 hdr=$1
830 test "${hdr%.h}" = "${hdr}" &&
831 echo "#include $hdr" ||
832 echo "#include <$hdr>"
833}
834
835check_code(){
836 log check_code "$@"
837 check=$1
838 headers=$2
839 code=$3
840 shift 3
841 {
842 for hdr in $headers; do
843 print_include $hdr
844 done
845 echo "int main(void) { $code; return 0; }"
846 } | check_$check "$@"
847}
848
849check_cppflags(){
850 log check_cppflags "$@"
851 check_cc "$@" <<EOF && append CPPFLAGS "$@"
852int x;
853EOF
854}
855
856test_cflags(){
857 log test_cflags "$@"
858 set -- $($cflags_filter "$@")
859 check_cc "$@" <<EOF
860int x;
861EOF
862}
863
864check_cflags(){
865 log check_cflags "$@"
866 test_cflags "$@" && add_cflags "$@"
867}
868
869test_objcflags(){
870 log test_cflags "$@"
871 set -- $($cflags_filter "$@")
872 check_objcc "$@" <<EOF
873int x;
874EOF
875}
876
877check_objcflags(){
878 log check_cflags "$@"
879 test_objcflags "$@" && add_objcflags "$@"
880}
881
882test_ldflags(){
883 log test_ldflags "$@"
884 check_ld "$@" <<EOF
885int main(void){ return 0; }
886EOF
887}
888
889check_ldflags(){
890 log check_ldflags "$@"
891 test_ldflags "$@" && add_ldflags "$@"
892}
893
894test_stripflags(){
895 log test_stripflags "$@"
896 # call check_cc to get a fresh TMPO
897 check_cc <<EOF
898int main(void) { return 0; }
899EOF
900 check_cmd $strip $STRIPFLAGS "$@" $TMPO
901}
902
903check_stripflags(){
904 log check_stripflags "$@"
905 test_stripflags "$@" && add_stripflags "$@"
906}
907
908check_header(){
909 log check_header "$@"
910 header=$1
911 shift
912 disable_safe $header
913 check_cpp "$@" <<EOF && enable_safe $header
914#include <$header>
915int x;
916EOF
917}
918
919check_func(){
920 log check_func "$@"
921 func=$1
922 shift
923 disable $func
924 check_ld "$@" <<EOF && enable $func
925extern int $func();
926int main(void){ $func(); }
927EOF
928}
929
930check_mathfunc(){
931 log check_mathfunc "$@"
932 func=$1
933 narg=$2
934 shift 2
935 test $narg = 2 && args="f, g" || args="f"
936 disable $func
937 check_ld "$@" <<EOF && enable $func
938#include <math.h>
939float foo(float f, float g) { return $func($args); }
940int main(void){ return 0; }
941EOF
942}
943
944check_func_headers(){
945 log check_func_headers "$@"
946 headers=$1
947 funcs=$2
948 shift 2
949 {
950 for hdr in $headers; do
951 print_include $hdr
952 done
953 for func in $funcs; do
954 echo "long check_$func(void) { return (long) $func; }"
955 done
956 echo "int main(void) { return 0; }"
957 } | check_ld "$@" && enable $funcs && enable_safe $headers
958}
959
960check_cpp_condition(){
961 log check_cpp_condition "$@"
962 header=$1
963 condition=$2
964 shift 2
965 check_cpp "$@" <<EOF
966#include <$header>
967#if !($condition)
968#error "unsatisfied condition: $condition"
969#endif
970EOF
971}
972
973check_lib(){
974 log check_lib "$@"
975 header="$1"
976 func="$2"
977 shift 2
978 check_header $header && check_func $func "$@" && add_extralibs "$@"
979}
980
981check_lib2(){
982 log check_lib2 "$@"
983 headers="$1"
984 funcs="$2"
985 shift 2
986 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
987}
988
989check_pkg_config(){
990 log check_pkg_config "$@"
991 pkg="$1"
992 headers="$2"
993 funcs="$3"
994 shift 3
995 check_cmd $pkg_config --exists --print-errors $pkg || return
996 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
997 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
998 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
999 set_safe "${pkg}_cflags" $pkg_cflags &&
1000 set_safe "${pkg}_libs" $pkg_libs
1001}
1002
1003check_exec(){
1004 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1005}
1006
1007check_exec_crash(){
1008 code=$(cat)
1009
1010 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1011 # are safe but may not be available everywhere. Thus we use
1012 # raise(SIGTERM) instead. The check is run in a subshell so we
1013 # can redirect the "Terminated" message from the shell. SIGBUS
1014 # is not defined by standard C so it is used conditionally.
1015
1016 (check_exec "$@") >> $logfile 2>&1 <<EOF
1017#include <signal.h>
1018static void sighandler(int sig){
1019 raise(SIGTERM);
1020}
1021int foo(void){
1022 $code
1023}
1024int (*func_ptr)(void) = foo;
1025int main(void){
1026 signal(SIGILL, sighandler);
1027 signal(SIGFPE, sighandler);
1028 signal(SIGSEGV, sighandler);
1029#ifdef SIGBUS
1030 signal(SIGBUS, sighandler);
1031#endif
1032 return func_ptr();
1033}
1034EOF
1035}
1036
1037check_type(){
1038 log check_type "$@"
1039 headers=$1
1040 type=$2
1041 shift 2
1042 disable_safe "$type"
1043 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1044}
1045
1046check_struct(){
1047 log check_struct "$@"
1048 headers=$1
1049 struct=$2
1050 member=$3
1051 shift 3
1052 disable_safe "${struct}_${member}"
1053 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1054 enable_safe "${struct}_${member}"
1055}
1056
1057check_builtin(){
1058 log check_builtin "$@"
1059 name=$1
1060 headers=$2
1061 builtin=$3
1062 shift 3
1063 disable "$name"
1064 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1065}
1066
1067check_compile_assert(){
1068 log check_compile_assert "$@"
1069 name=$1
1070 headers=$2
1071 condition=$3
1072 shift 3
1073 disable "$name"
1074 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1075}
1076
1077require(){
1078 name="$1"
1079 header="$2"
1080 func="$3"
1081 shift 3
1082 check_lib $header $func "$@" || die "ERROR: $name not found"
1083}
1084
1085require2(){
1086 name="$1"
1087 headers="$2"
1088 func="$3"
1089 shift 3
1090 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1091}
1092
1093require_pkg_config(){
1094 pkg="$1"
1095 check_pkg_config "$@" || die "ERROR: $pkg not found"
1096 add_cflags $(get_safe "${pkg}_cflags")
1097 add_extralibs $(get_safe "${pkg}_libs")
1098}
1099
1100hostcc_e(){
1101 eval printf '%s\\n' $HOSTCC_E
1102}
1103
1104hostcc_o(){
1105 eval printf '%s\\n' $HOSTCC_O
1106}
1107
1108check_host_cc(){
1109 log check_host_cc "$@"
1110 cat > $TMPC
1111 log_file $TMPC
1112 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1113}
1114
1115check_host_cpp(){
1116 log check_host_cpp "$@"
1117 cat > $TMPC
1118 log_file $TMPC
1119 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1120}
1121
1122check_host_cppflags(){
1123 log check_host_cppflags "$@"
1124 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1125int x;
1126EOF
1127}
1128
1129check_host_cflags(){
1130 log check_host_cflags "$@"
1131 set -- $($host_cflags_filter "$@")
1132 check_host_cc "$@" <<EOF && append host_cflags "$@"
1133int x;
1134EOF
1135}
1136
1137check_host_cpp_condition(){
1138 log check_host_cpp_condition "$@"
1139 header=$1
1140 condition=$2
1141 shift 2
1142 check_host_cpp "$@" <<EOF
1143#include <$header>
1144#if !($condition)
1145#error "unsatisfied condition: $condition"
1146#endif
1147EOF
1148}
1149
1150apply(){
1151 file=$1
1152 shift
1153 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1154}
1155
1156cp_if_changed(){
1157 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1158 mkdir -p "$(dirname $2)"
1159 $cp_f "$1" "$2"
1160}
1161
1162# CONFIG_LIST contains configurable options, while HAVE_LIST is for
1163# system-dependent things.
1164
1165AVCODEC_COMPONENTS="
1166 bsfs
1167 decoders
1168 encoders
1169 hwaccels
1170 parsers
1171"
1172
1173AVDEVICE_COMPONENTS="
1174 indevs
1175 outdevs
1176"
1177AVFILTER_COMPONENTS="
1178 filters
1179"
1180AVFORMAT_COMPONENTS="
1181 demuxers
1182 muxers
1183 protocols
1184"
1185
1186AVRESAMPLE_COMPONENTS=""
1187AVUTIL_COMPONENTS=""
1188
1189COMPONENT_LIST="
1190 $AVCODEC_COMPONENTS
1191 $AVDEVICE_COMPONENTS
1192 $AVFILTER_COMPONENTS
1193 $AVFORMAT_COMPONENTS
1194 $AVRESAMPLE_COMPONENTS
1195 $AVUTIL_COMPONENTS
1196"
1197
1198EXAMPLE_LIST="
1199 avcodec_example
1200 filter_audio_example
1201 metadata_example
1202 output_example
1203 qsvdec_example
1204 transcode_aac_example
1205"
1206
1207EXTERNAL_LIBRARY_LIST="
1208 avisynth
1209 bzlib
1210 cuda
1211 frei0r
1212 gnutls
1213 libbs2b
1214 libcdio
1215 libdc1394
1216 libdcadec
1217 libfaac
1218 libfdk_aac
1219 libfontconfig
1220 libfreetype
1221 libgsm
1222 libilbc
1223 libkvazaar
1224 libmfx
1225 libmp3lame
1226 libnpp
1227 libopencore_amrnb
1228 libopencore_amrwb
1229 libopencv
1230 libopenh264
1231 libopenjpeg
1232 libopus
1233 libpulse
1234 librtmp
1235 libschroedinger
1236 libsnappy
1237 libspeex
1238 libtheora
1239 libtwolame
1240 libvo_aacenc
1241 libvo_amrwbenc
1242 libvorbis
1243 libvpx
1244 libwavpack
1245 libwebp
1246 libx264
1247 libx265
1248 libxavs
1249 libxcb
1250 libxcb_shm
1251 libxcb_xfixes
1252 libxvid
1253 mmal
1254 nvenc
1255 openssl
1256 x11grab
1257 zlib
1258"
1259
1260FEATURE_LIST="
1261 gray
1262 hardcoded_tables
1263 runtime_cpudetect
1264 safe_bitstream_reader
1265 shared
1266 small
1267 sram
1268 static
1269 swscale_alpha
1270"
1271
1272HWACCEL_LIST="
1273 d3d11va
1274 dxva2
1275 vaapi
1276 vda
1277 vdpau
1278"
1279
1280LIBRARY_LIST="
1281 avcodec
1282 avdevice
1283 avfilter
1284 avformat
1285 avresample
1286 avutil
1287 swscale
1288"
1289
1290LICENSE_LIST="
1291 gpl
1292 nonfree
1293 version3
1294"
1295
1296PROGRAM_LIST="
1297 avconv
1298 avplay
1299 avprobe
1300"
1301
1302SUBSYSTEM_LIST="
1303 dct
1304 doc
1305 error_resilience
1306 faan
1307 fft
1308 lsp
1309 lzo
1310 mdct
1311 network
1312 rdft
1313"
1314
1315CONFIG_LIST="
1316 $COMPONENT_LIST
1317 $EXAMPLE_LIST
1318 $EXTERNAL_LIBRARY_LIST
1319 $FEATURE_LIST
1320 $HWACCEL_LIST
1321 $LICENSE_LIST
1322 $LIBRARY_LIST
1323 $PROGRAM_LIST
1324 $SUBSYSTEM_LIST
1325 memalign_hack
1326 neon_clobber_test
1327 pic
1328 pod2man
1329 texi2html
1330 thumb
1331 valgrind_backtrace
1332 xmm_clobber_test
1333"
1334
1335THREADS_LIST="
1336 pthreads
1337 w32threads
1338"
1339
1340ATOMICS_LIST="
1341 atomics_gcc
1342 atomics_suncc
1343 atomics_win32
1344"
1345
1346ARCH_LIST="
1347 aarch64
1348 alpha
1349 arm
1350 avr32
1351 avr32_ap
1352 avr32_uc
1353 bfin
1354 ia64
1355 m68k
1356 mips
1357 mips64
1358 parisc
1359 ppc
1360 ppc64
1361 s390
1362 sh4
1363 sparc
1364 sparc64
1365 tilegx
1366 tilepro
1367 tomi
1368 x86
1369 x86_32
1370 x86_64
1371"
1372
1373ARCH_EXT_LIST_ARM="
1374 armv5te
1375 armv6
1376 armv6t2
1377 armv8
1378 neon
1379 vfp
1380 vfpv3
1381"
1382
1383ARCH_EXT_LIST_X86_SIMD="
1384 amd3dnow
1385 amd3dnowext
1386 avx
1387 avx2
1388 fma3
1389 fma4
1390 mmx
1391 mmxext
1392 sse
1393 sse2
1394 sse3
1395 sse4
1396 sse42
1397 ssse3
1398 xop
1399"
1400
1401ARCH_EXT_LIST_PPC="
1402 altivec
1403 dcbzl
1404 ldbrx
1405 power8
1406 ppc4xx
1407 vsx
1408"
1409
1410ARCH_EXT_LIST_X86="
1411 $ARCH_EXT_LIST_X86_SIMD
1412 cpunop
1413 i686
1414"
1415
1416ARCH_EXT_LIST_MIPS="
1417 loongson
1418 mips32r1
1419 mips64r1
1420 mips32r2
1421 mips64r2
1422 mips32r6
1423 mips64r6
1424"
1425
1426ARCH_EXT_LIST="
1427 $ARCH_EXT_LIST_ARM
1428 $ARCH_EXT_LIST_MIPS
1429 $ARCH_EXT_LIST_PPC
1430 $ARCH_EXT_LIST_X86
1431 vis
1432"
1433
1434ARCH_FEATURES="
1435 aligned_stack
1436 fast_64bit
1437 fast_clz
1438 fast_cmov
1439 local_aligned_8
1440 local_aligned_16
1441 simd_align_16
1442"
1443
1444BUILTIN_LIST="
1445 atomic_cas_ptr
1446 machine_rw_barrier
1447 MemoryBarrier
1448 mm_empty
1449 rdtsc
1450 sync_val_compare_and_swap
1451"
1452HAVE_LIST_CMDLINE="
1453 inline_asm
1454 symver
1455 yasm
1456"
1457
1458HAVE_LIST_PUB="
1459 bigendian
1460 fast_unaligned
1461"
1462
1463HEADERS_LIST="
1464 AVFoundation_AVFoundation_h
1465 alsa_asoundlib_h
1466 altivec_h
1467 arpa_inet_h
1468 cdio_paranoia_h
1469 cdio_paranoia_paranoia_h
1470 dev_bktr_ioctl_bt848_h
1471 dev_bktr_ioctl_meteor_h
1472 dev_ic_bt8xx_h
1473 dev_video_bktr_ioctl_bt848_h
1474 dev_video_meteor_ioctl_meteor_h
1475 direct_h
1476 dlfcn_h
1477 d3d11_h
1478 dxva_h
1479 gsm_h
1480 io_h
1481 mach_mach_time_h
1482 machine_ioctl_bt848_h
1483 machine_ioctl_meteor_h
1484 malloc_h
1485 poll_h
1486 sndio_h
1487 soundcard_h
1488 sys_mman_h
1489 sys_param_h
1490 sys_resource_h
1491 sys_select_h
1492 sys_soundcard_h
1493 sys_time_h
1494 sys_un_h
1495 sys_videoio_h
1496 unistd_h
1497 valgrind_valgrind_h
1498 windows_h
1499 winsock2_h
1500"
1501
1502INTRINSICS_LIST="
1503 intrinsics_neon
1504"
1505
1506MATH_FUNCS="
1507 atanf
1508 atan2f
1509 cbrtf
1510 cosf
1511 exp2
1512 exp2f
1513 expf
1514 isinf
1515 isnan
1516 ldexpf
1517 llrint
1518 llrintf
1519 log2
1520 log2f
1521 log10f
1522 lrint
1523 lrintf
1524 powf
1525 rint
1526 round
1527 roundf
1528 sinf
1529 trunc
1530 truncf
1531"
1532
1533SYSTEM_FUNCS="
1534 aligned_malloc
1535 clock_gettime
1536 closesocket
1537 CommandLineToArgvW
1538 CoTaskMemFree
1539 CryptGenRandom
1540 dlopen
1541 fcntl
1542 flt_lim
1543 fork
1544 getaddrinfo
1545 gethrtime
1546 getopt
1547 GetProcessAffinityMask
1548 GetProcessMemoryInfo
1549 GetProcessTimes
1550 getrusage
1551 GetSystemTimeAsFileTime
1552 gettimeofday
1553 gmtime_r
1554 inet_aton
1555 isatty
1556 jack_port_get_latency_range
1557 LoadLibrary
1558 localtime_r
1559 mach_absolute_time
1560 MapViewOfFile
1561 memalign
1562 mkstemp
1563 mmap
1564 mprotect
1565 nanosleep
1566 posix_memalign
1567 sched_getaffinity
1568 SetConsoleTextAttribute
1569 setmode
1570 setrlimit
1571 Sleep
1572 strerror_r
1573 sysconf
1574 sysctl
1575 usleep
1576 VirtualAlloc
1577"
1578
1579TOOLCHAIN_FEATURES="
1580 as_dn_directive
1581 as_func
1582 as_object_arch
1583 asm_mod_q
1584 attribute_may_alias
1585 attribute_packed
1586 ebp_available
1587 ebx_available
1588 gnu_as
1589 ibm_asm
1590 inline_asm_labels
1591 pragma_deprecated
1592 symver_asm_label
1593 symver_gnu_asm
1594 vfp_args
1595 xform_asm
1596 xmm_clobbers
1597"
1598
1599TYPES_LIST="
1600 CONDITION_VARIABLE_Ptr
1601 socklen_t
1602 struct_addrinfo
1603 struct_group_source_req
1604 struct_ip_mreq_source
1605 struct_ipv6_mreq
1606 struct_pollfd
1607 struct_rusage_ru_maxrss
1608 struct_sockaddr_in6
1609 struct_sockaddr_sa_len
1610 struct_sockaddr_storage
1611 struct_v4l2_frmivalenum_discrete
1612"
1613
1614HAVE_LIST="
1615 $ARCH_EXT_LIST
1616 $(add_suffix _external $ARCH_EXT_LIST)
1617 $(add_suffix _inline $ARCH_EXT_LIST)
1618 $ARCH_FEATURES
1619 $ATOMICS_LIST
1620 $BUILTIN_LIST
1621 $HAVE_LIST_CMDLINE
1622 $HAVE_LIST_PUB
1623 $HEADERS_LIST
1624 $INTRINSICS_LIST
1625 $MATH_FUNCS
1626 $SYSTEM_FUNCS
1627 $THREADS_LIST
1628 $TOOLCHAIN_FEATURES
1629 $TYPES_LIST
1630 atomics_native
1631 dos_paths
1632 dxva2_lib
1633 libc_msvcrt
1634 libdc1394_1
1635 libdc1394_2
1636 sdl
1637 section_data_rel_ro
1638 threads
1639 vaapi_drm
1640 vaapi_x11
1641 vdpau_x11
1642 xlib
1643"
1644
1645# options emitted with CONFIG_ prefix but not available on the command line
1646CONFIG_EXTRA="
1647 aandcttables
1648 ac3dsp
1649 audio_frame_queue
1650 audiodsp
1651 blockdsp
1652 bswapdsp
1653 cabac
1654 dirac_parse
1655 dvprofile
1656 faandct
1657 faanidct
1658 fdctdsp
1659 flacdsp
1660 fmtconvert
1661 g722dsp
1662 gcrypt
1663 gmp
1664 golomb
1665 gplv3
1666 h263dsp
1667 h264chroma
1668 h264dsp
1669 h264pred
1670 h264qpel
1671 hpeldsp
1672 huffman
1673 huffyuvdsp
1674 huffyuvencdsp
1675 idctdsp
1676 iirfilter
1677 imdct15
1678 intrax8
1679 iso_media
1680 ividsp
1681 jpegtables
1682 libx262
1683 lgplv3
1684 lpc
1685 lzf
1686 me_cmp
1687 mpeg_er
1688 mpegaudio
1689 mpegaudiodsp
1690 mpegvideo
1691 mpegvideoenc
1692 mss34dsp
1693 pixblockdsp
1694 qpeldsp
1695 qsv
1696 qsvdec
1697 qsvenc
1698 rangecoder
1699 riffdec
1700 riffenc
1701 rtpdec
1702 rtpenc_chain
1703 rv34dsp
1704 sinewin
1705 snappy
1706 srtp
1707 startcode
1708 texturedsp
1709 texturedspenc
1710 tpeldsp
1711 vc1dsp
1712 videodsp
1713 vp3dsp
1714 vp56dsp
1715 vp8dsp
1716 wma_freqs
1717 wmv2dsp
1718"
1719
1720CMDLINE_SELECT="
1721 $ARCH_EXT_LIST
1722 $CONFIG_LIST
1723 $HAVE_LIST_CMDLINE
1724 $THREADS_LIST
1725 asm
1726 cross_compile
1727 debug
1728 extra_warnings
1729 logging
1730 lto
1731 optimizations
1732 rpath
1733"
1734
1735PATHS_LIST="
1736 bindir
1737 datadir
1738 docdir
1739 incdir
1740 libdir
1741 mandir
1742 prefix
1743 shlibdir
1744"
1745
1746CMDLINE_SET="
1747 $PATHS_LIST
1748 ar
1749 arch
1750 as
1751 build_suffix
1752 cc
1753 objcc
1754 cpu
1755 cross_prefix
1756 custom_allocator
1757 dep_cc
1758 env
1759 extra_version
1760 host_cc
1761 host_cflags
1762 host_ld
1763 host_ldflags
1764 host_libs
1765 host_os
1766 ld
1767 logfile
1768 malloc_prefix
1769 nm
1770 optflags
1771 pkg_config
1772 pkg_config_flags
1773 random_seed
1774 samples
1775 sysinclude
1776 sysroot
1777 target_exec
1778 target_os
1779 target_path
1780 target_samples
1781 toolchain
1782"
1783
1784CMDLINE_APPEND="
1785 extra_cflags
1786 extra_objcflags
1787 host_cppflags
1788"
1789
1790# code dependency declarations
1791
1792# architecture extensions
1793
1794armv5te_deps="arm"
1795armv6_deps="arm"
1796armv6t2_deps="arm"
1797armv8_deps="aarch64"
1798neon_deps_any="aarch64 arm"
1799intrinsics_neon_deps="neon"
1800vfp_deps_any="aarch64 arm"
1801vfpv3_deps="vfp"
1802
1803map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1804
1805altivec_deps="ppc"
1806ppc4xx_deps="ppc"
1807vsx_deps="altivec"
1808power8_deps="vsx"
1809
1810cpunop_deps="i686"
1811x86_64_select="i686"
1812x86_64_suggest="fast_cmov"
1813
1814amd3dnow_deps="mmx"
1815amd3dnowext_deps="amd3dnow"
1816i686_deps="x86"
1817mmx_deps="x86"
1818mmxext_deps="mmx"
1819sse_deps="mmxext"
1820sse2_deps="sse"
1821sse3_deps="sse2"
1822ssse3_deps="sse3"
1823sse4_deps="ssse3"
1824sse42_deps="sse4"
1825avx_deps="sse42"
1826xop_deps="avx"
1827fma3_deps="avx"
1828fma4_deps="avx"
1829avx2_deps="avx"
1830
1831mmx_external_deps="yasm"
1832mmx_inline_deps="inline_asm"
1833mmx_suggest="mmx_external mmx_inline"
1834
1835for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1836 eval dep=\$${ext}_deps
1837 eval ${ext}_external_deps='"${dep}_external"'
1838 eval ${ext}_inline_deps='"${dep}_inline"'
1839 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1840done
1841
1842aligned_stack_if_any="aarch64 ppc x86"
1843fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1844fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1845fast_unaligned_if_any="aarch64 ppc x86"
1846simd_align_16_if_any="altivec neon sse"
1847
1848# system capabilities
1849symver_if_any="symver_asm_label symver_gnu_asm"
1850valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1851
1852# threading support
1853atomics_gcc_if="sync_val_compare_and_swap"
1854atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1855atomics_win32_if="MemoryBarrier"
1856atomics_native_if_any="$ATOMICS_LIST"
1857w32threads_deps="atomics_native"
1858threads_if_any="$THREADS_LIST"
1859
1860# subsystems
1861dct_select="rdft"
1862dirac_parse_select="golomb"
1863error_resilience_select="me_cmp"
1864faandct_deps="faan fdctdsp"
1865faanidct_deps="faan idctdsp"
1866h264dsp_select="startcode"
1867intrax8_select="blockdsp idctdsp"
1868mdct_select="fft"
1869rdft_select="fft"
1870me_cmp_select="fdctdsp idctdsp pixblockdsp"
1871mpeg_er_select="error_resilience"
1872mpegaudio_select="mpegaudiodsp"
1873mpegaudiodsp_select="dct"
1874mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1875mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1876nvenc_deps_any="dlopen LoadLibrary"
1877nvenc_extralibs='$ldl'
1878qsvdec_select="qsv"
1879qsvenc_select="qsv"
1880vc1dsp_select="h264chroma qpeldsp startcode"
1881
1882# decoders / encoders
1883aac_decoder_select="imdct15 mdct sinewin"
1884aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1885aac_latm_decoder_select="aac_decoder aac_latm_parser"
1886ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1887ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1888ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1889adpcm_g722_decoder_select="g722dsp"
1890adpcm_g722_encoder_select="g722dsp"
1891aic_decoder_select="golomb idctdsp"
1892alac_encoder_select="lpc"
1893als_decoder_select="bswapdsp"
1894amrnb_decoder_select="lsp"
1895amrwb_decoder_select="lsp"
1896amv_decoder_select="sp5x_decoder"
1897ape_decoder_select="bswapdsp"
1898asv1_decoder_select="blockdsp bswapdsp idctdsp"
1899asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1900asv2_decoder_select="blockdsp bswapdsp idctdsp"
1901asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1902atrac1_decoder_select="mdct sinewin"
1903atrac3_decoder_select="mdct"
1904atrac3p_decoder_select="mdct sinewin"
1905bink_decoder_select="blockdsp hpeldsp"
1906binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1907binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1908cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1909cllc_decoder_select="bswapdsp"
1910comfortnoise_encoder_select="lpc"
1911cook_decoder_select="audiodsp mdct sinewin"
1912cscd_decoder_select="lzo"
1913cscd_decoder_suggest="zlib"
1914dca_decoder_select="fmtconvert mdct"
1915dds_decoder_select="texturedsp"
1916dnxhd_decoder_select="blockdsp idctdsp"
1917dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1918dvvideo_decoder_select="dvprofile idctdsp"
1919dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1920dxa_decoder_deps="zlib"
1921dxv_decoder_select="lzf texturedsp"
1922eac3_decoder_select="ac3_decoder"
1923eac3_encoder_select="ac3_encoder"
1924eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1925eatgq_decoder_select="aandcttables idctdsp"
1926eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1927exr_decoder_deps="zlib"
1928ffv1_decoder_select="golomb rangecoder"
1929ffv1_encoder_select="rangecoder"
1930ffvhuff_decoder_select="huffyuv_decoder"
1931ffvhuff_encoder_select="huffyuv_encoder"
1932fic_decoder_select="golomb"
1933flac_decoder_select="flacdsp golomb"
1934flac_encoder_select="bswapdsp flacdsp golomb lpc"
1935flashsv_decoder_deps="zlib"
1936flashsv_encoder_deps="zlib"
1937flashsv2_decoder_deps="zlib"
1938flv_decoder_select="h263_decoder"
1939flv_encoder_select="h263_encoder"
1940fourxm_decoder_select="blockdsp bswapdsp"
1941fraps_decoder_select="bswapdsp huffman"
1942g2m_decoder_deps="zlib"
1943g2m_decoder_select="blockdsp idctdsp jpegtables"
1944h261_decoder_select="mpeg_er mpegvideo"
1945h261_encoder_select="aandcttables mpegvideoenc"
1946h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1947h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1948h263i_decoder_select="h263_decoder"
1949h263p_encoder_select="h263_encoder"
1950h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1951h264_decoder_suggest="error_resilience"
1952h264_nvenc_encoder_deps="nvenc"
1953h264_qsv_decoder_deps="libmfx"
1954h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1955h264_qsv_encoder_deps="libmfx"
1956h264_qsv_encoder_select="qsvenc"
1957hap_decoder_select="snappy texturedsp"
1958hap_encoder_deps="libsnappy"
1959hap_encoder_select="texturedspenc"
1960hevc_decoder_select="bswapdsp cabac golomb videodsp"
1961hevc_nvenc_encoder_deps="nvenc"
1962hevc_qsv_encoder_deps="libmfx"
1963hevc_qsv_decoder_deps="libmfx"
1964hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1965hevc_qsv_encoder_select="qsvenc"
1966huffyuv_decoder_select="bswapdsp huffyuvdsp"
1967huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1968iac_decoder_select="imc_decoder"
1969imc_decoder_select="bswapdsp fft mdct sinewin"
1970indeo3_decoder_select="hpeldsp"
1971indeo4_decoder_select="ividsp"
1972indeo5_decoder_select="ividsp"
1973interplay_video_decoder_select="hpeldsp"
1974jpegls_decoder_select="golomb mjpeg_decoder"
1975jpegls_encoder_select="golomb"
1976jv_decoder_select="blockdsp"
1977lagarith_decoder_select="huffyuvdsp"
1978ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1979loco_decoder_select="golomb"
1980mdec_decoder_select="blockdsp idctdsp mpegvideo"
1981metasound_decoder_select="lsp mdct sinewin"
1982mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1983mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1984mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1985mjpegb_decoder_select="mjpeg_decoder"
1986mlp_decoder_select="mlp_parser"
1987motionpixels_decoder_select="bswapdsp"
1988mp1_decoder_select="mpegaudio"
1989mp1float_decoder_select="mpegaudio"
1990mp2_decoder_select="mpegaudio"
1991mp2float_decoder_select="mpegaudio"
1992mp3_decoder_select="mpegaudio"
1993mp3adu_decoder_select="mpegaudio"
1994mp3adufloat_decoder_select="mpegaudio"
1995mp3float_decoder_select="mpegaudio"
1996mp3on4_decoder_select="mpegaudio"
1997mp3on4float_decoder_select="mpegaudio"
1998mpc7_decoder_select="bswapdsp mpegaudiodsp"
1999mpc8_decoder_select="mpegaudiodsp"
2000mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2001mpeg_xvmc_decoder_select="mpeg2video_decoder"
2002mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2003mpeg1video_encoder_select="aandcttables mpegvideoenc"
2004mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2005mpeg2video_encoder_select="aandcttables mpegvideoenc"
2006mpeg2_qsv_decoder_deps="libmfx"
2007mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2008mpeg2_qsv_encoder_deps="libmfx"
2009mpeg2_qsv_encoder_select="qsvenc"
2010mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2011mpeg4_encoder_select="h263_encoder"
2012msa1_decoder_select="mss34dsp"
2013msmpeg4v1_decoder_select="h263_decoder"
2014msmpeg4v2_decoder_select="h263_decoder"
2015msmpeg4v2_encoder_select="h263_encoder"
2016msmpeg4v3_decoder_select="h263_decoder"
2017msmpeg4v3_encoder_select="h263_encoder"
2018mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2019mts2_decoder_select="mss34dsp"
2020mxpeg_decoder_select="mjpeg_decoder"
2021nellymoser_decoder_select="mdct sinewin"
2022nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2023nuv_decoder_select="idctdsp lzo"
2024nvenc_h264_encoder_deps="nvenc"
2025nvenc_hevc_encoder_deps="nvenc"
2026on2avc_decoder_select="mdct"
2027opus_decoder_deps="avresample"
2028opus_decoder_select="imdct15"
2029png_decoder_deps="zlib"
2030png_encoder_deps="zlib"
2031png_encoder_select="huffyuvencdsp"
2032prores_decoder_select="idctdsp"
2033prores_encoder_select="fdctdsp"
2034qcelp_decoder_select="lsp"
2035qdm2_decoder_select="mdct rdft mpegaudiodsp"
2036ra_144_encoder_select="audio_frame_queue lpc"
2037ralf_decoder_select="golomb"
2038rscc_decoder_deps="zlib"
2039rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2040rv10_encoder_select="h263_encoder"
2041rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2042rv20_encoder_select="h263_encoder"
2043rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2044rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2045screenpresso_decoder_deps="zlib"
2046shorten_decoder_select="golomb"
2047sipr_decoder_select="lsp"
2048sp5x_decoder_select="mjpeg_decoder"
2049svq1_decoder_select="hpeldsp"
2050svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2051svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2052svq3_decoder_suggest="zlib"
2053tak_decoder_select="audiodsp"
2054tdsc_decoder_deps="zlib"
2055tdsc_decoder_select="mjpeg_decoder"
2056theora_decoder_select="vp3_decoder"
2057thp_decoder_select="mjpeg_decoder"
2058tiff_decoder_suggest="zlib"
2059tiff_encoder_suggest="zlib"
2060truehd_decoder_select="mlp_decoder"
2061truemotion2_decoder_select="bswapdsp"
2062truespeech_decoder_select="bswapdsp"
2063tscc_decoder_deps="zlib"
2064txd_decoder_select="texturedsp"
2065twinvq_decoder_select="mdct lsp sinewin"
2066utvideo_decoder_select="bswapdsp"
2067utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2068vble_decoder_select="huffyuvdsp"
2069vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2070vc1image_decoder_select="vc1_decoder"
2071vorbis_decoder_select="mdct"
2072vorbis_encoder_select="mdct"
2073vp3_decoder_select="hpeldsp vp3dsp videodsp"
2074vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2075vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2076vp6a_decoder_select="vp6_decoder"
2077vp6f_decoder_select="vp6_decoder"
2078vp7_decoder_select="h264pred videodsp vp8dsp"
2079vp8_decoder_select="h264pred videodsp vp8dsp"
2080vp9_decoder_select="videodsp"
2081webp_decoder_select="vp8_decoder"
2082wmapro_decoder_select="mdct sinewin wma_freqs"
2083wmav1_decoder_select="mdct sinewin wma_freqs"
2084wmav1_encoder_select="mdct sinewin wma_freqs"
2085wmav2_decoder_select="mdct sinewin wma_freqs"
2086wmav2_encoder_select="mdct sinewin wma_freqs"
2087wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2088wmv1_decoder_select="h263_decoder"
2089wmv1_encoder_select="h263_encoder"
2090wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2091wmv2_encoder_select="h263_encoder wmv2dsp"
2092wmv3_decoder_select="vc1_decoder"
2093wmv3image_decoder_select="wmv3_decoder"
2094zerocodec_decoder_deps="zlib"
2095zlib_decoder_deps="zlib"
2096zlib_encoder_deps="zlib"
2097zmbv_decoder_deps="zlib"
2098zmbv_encoder_deps="zlib"
2099
2100# hardware accelerators
2101d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2102dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2103vaapi_deps="va_va_h"
2104vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2105vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2106vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2107
2108h263_vaapi_hwaccel_deps="vaapi"
2109h263_vaapi_hwaccel_select="h263_decoder"
2110h264_d3d11va_hwaccel_deps="d3d11va"
2111h264_d3d11va_hwaccel_select="h264_decoder"
2112h264_dxva2_hwaccel_deps="dxva2"
2113h264_dxva2_hwaccel_select="h264_decoder"
2114h264_mmal_decoder_deps="mmal"
2115h264_mmal_hwaccel_deps="mmal"
2116h264_mmal_decoder_select="h264_decoder"
2117h264_mmal_encoder_deps="mmal"
2118h264_qsv_hwaccel_deps="libmfx"
2119h264_vaapi_hwaccel_deps="vaapi"
2120h264_vaapi_hwaccel_select="h264_decoder"
2121h264_vda_hwaccel_deps="vda"
2122h264_vda_hwaccel_select="h264_decoder"
2123h264_vda_old_hwaccel_deps="vda"
2124h264_vda_old_hwaccel_select="h264_decoder"
2125h264_vdpau_hwaccel_deps="vdpau"
2126h264_vdpau_hwaccel_select="h264_decoder"
2127hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2128hevc_d3d11va_hwaccel_select="hevc_decoder"
2129hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2130hevc_dxva2_hwaccel_select="hevc_decoder"
2131hevc_qsv_hwaccel_deps="libmfx"
2132hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2133hevc_vdpau_hwaccel_select="hevc_decoder"
2134mpeg1_vdpau_hwaccel_deps="vdpau"
2135mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2136mpeg2_d3d11va_hwaccel_deps="d3d11va"
2137mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2138mpeg2_dxva2_hwaccel_deps="dxva2"
2139mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2140mpeg2_qsv_hwaccel_deps="libmfx"
2141mpeg2_vaapi_hwaccel_deps="vaapi"
2142mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2143mpeg2_vdpau_hwaccel_deps="vdpau"
2144mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2145mpeg4_vaapi_hwaccel_deps="vaapi"
2146mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2147mpeg4_vdpau_hwaccel_deps="vdpau"
2148mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2149vc1_d3d11va_hwaccel_deps="d3d11va"
2150vc1_d3d11va_hwaccel_select="vc1_decoder"
2151vc1_dxva2_hwaccel_deps="dxva2"
2152vc1_dxva2_hwaccel_select="vc1_decoder"
2153vc1_vaapi_hwaccel_deps="vaapi"
2154vc1_vaapi_hwaccel_select="vc1_decoder"
2155vc1_vdpau_hwaccel_deps="vdpau"
2156vc1_vdpau_hwaccel_select="vc1_decoder"
2157wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2158wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2159wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2160wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2161
2162# parsers
2163h264_parser_select="h264_decoder"
2164hevc_parser_select="golomb"
2165mpegvideo_parser_select="mpegvideo"
2166mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2167vc1_parser_select="vc1dsp"
2168
2169# bitstream_filters
2170mjpeg2jpeg_bsf_select="jpegtables"
2171
2172# external libraries
2173libdcadec_decoder_deps="libdcadec"
2174libfaac_encoder_deps="libfaac"
2175libfaac_encoder_select="audio_frame_queue"
2176libfdk_aac_decoder_deps="libfdk_aac"
2177libfdk_aac_encoder_deps="libfdk_aac"
2178libfdk_aac_encoder_select="audio_frame_queue"
2179libgsm_decoder_deps="libgsm"
2180libgsm_encoder_deps="libgsm"
2181libgsm_ms_decoder_deps="libgsm"
2182libgsm_ms_encoder_deps="libgsm"
2183libilbc_decoder_deps="libilbc"
2184libilbc_encoder_deps="libilbc"
2185libkvazaar_encoder_deps="libkvazaar"
2186libmp3lame_encoder_deps="libmp3lame"
2187libmp3lame_encoder_select="audio_frame_queue"
2188libopencore_amrnb_decoder_deps="libopencore_amrnb"
2189libopencore_amrnb_encoder_deps="libopencore_amrnb"
2190libopencore_amrnb_encoder_select="audio_frame_queue"
2191libopencore_amrwb_decoder_deps="libopencore_amrwb"
2192libopenh264_encoder_deps="libopenh264"
2193libopenjpeg_decoder_deps="libopenjpeg"
2194libopenjpeg_encoder_deps="libopenjpeg"
2195libopus_decoder_deps="libopus"
2196libopus_encoder_deps="libopus"
2197libopus_encoder_select="audio_frame_queue"
2198libschroedinger_decoder_deps="libschroedinger"
2199libschroedinger_encoder_deps="libschroedinger"
2200libspeex_decoder_deps="libspeex"
2201libspeex_encoder_deps="libspeex"
2202libspeex_encoder_select="audio_frame_queue"
2203libtheora_encoder_deps="libtheora"
2204libtwolame_encoder_deps="libtwolame"
2205libvo_aacenc_encoder_deps="libvo_aacenc"
2206libvo_aacenc_encoder_select="audio_frame_queue"
2207libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2208libvorbis_encoder_deps="libvorbis"
2209libvorbis_encoder_select="audio_frame_queue"
2210libvpx_vp8_decoder_deps="libvpx"
2211libvpx_vp8_encoder_deps="libvpx"
2212libvpx_vp9_decoder_deps="libvpx"
2213libvpx_vp9_encoder_deps="libvpx"
2214libwavpack_encoder_deps="libwavpack"
2215libwebp_encoder_deps="libwebp"
2216libx262_encoder_deps="libx262"
2217libx264_encoder_deps="libx264"
2218libx265_encoder_deps="libx265"
2219libxavs_encoder_deps="libxavs"
2220libxvid_encoder_deps="libxvid"
2221
2222# demuxers / muxers
2223ac3_demuxer_select="ac3_parser"
2224asf_demuxer_select="riffdec"
2225asf_muxer_select="riffenc"
2226asf_stream_muxer_select="asf_muxer"
2227avi_demuxer_select="iso_media riffdec"
2228avi_muxer_select="riffenc"
2229avisynth_demuxer_deps="avisynth"
2230avisynth_demuxer_select="riffdec"
2231caf_demuxer_select="iso_media riffdec"
2232dash_muxer_select="mp4_muxer"
2233dirac_demuxer_select="dirac_parser"
2234dv_demuxer_select="dvprofile"
2235dv_muxer_select="dvprofile"
2236dxa_demuxer_select="riffdec"
2237eac3_demuxer_select="ac3_parser"
2238f4v_muxer_select="mov_muxer"
2239flac_demuxer_select="flac_parser"
2240hds_muxer_select="flv_muxer"
2241hls_muxer_select="mpegts_muxer"
2242ipod_muxer_select="mov_muxer"
2243ismv_muxer_select="mov_muxer"
2244matroska_audio_muxer_select="matroska_muxer"
2245matroska_demuxer_select="iso_media riffdec"
2246matroska_demuxer_suggest="bzlib lzo zlib"
2247matroska_muxer_select="iso_media riffenc"
2248mmf_muxer_select="riffenc"
2249mov_demuxer_select="iso_media riffdec"
2250mov_demuxer_suggest="zlib"
2251mov_muxer_select="iso_media riffenc rtpenc_chain"
2252mp3_demuxer_select="mpegaudio_parser"
2253mp4_muxer_select="mov_muxer"
2254mpegts_demuxer_select="iso_media"
2255mpegts_muxer_select="adts_muxer latm_muxer"
2256mpegtsraw_demuxer_select="mpegts_demuxer"
2257mxf_d10_muxer_select="mxf_muxer"
2258nut_muxer_select="riffenc"
2259nuv_demuxer_select="riffdec"
2260oga_muxer_select="ogg_muxer"
2261ogg_demuxer_select="dirac_parse"
2262opus_muxer_select="ogg_muxer"
2263psp_muxer_select="mov_muxer"
2264rtp_demuxer_select="sdp_demuxer"
2265rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2266rtsp_demuxer_select="http_protocol rtpdec"
2267rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2268sap_demuxer_select="sdp_demuxer"
2269sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2270sdp_demuxer_select="rtpdec"
2271smoothstreaming_muxer_select="ismv_muxer"
2272spdif_muxer_select="aac_parser"
2273spx_muxer_select="ogg_muxer"
2274swf_demuxer_suggest="zlib"
2275tak_demuxer_select="tak_parser"
2276tg2_muxer_select="mov_muxer"
2277tgp_muxer_select="mov_muxer"
2278w64_demuxer_select="wav_demuxer"
2279wav_demuxer_select="riffdec"
2280wav_muxer_select="riffenc"
2281webm_muxer_select="iso_media riffenc"
2282webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2283wtv_demuxer_select="mpegts_demuxer riffdec"
2284xmv_demuxer_select="riffdec"
2285xwma_demuxer_select="riffdec"
2286
2287# indevs / outdevs
2288alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2289alsa_outdev_deps="alsa_asoundlib_h"
2290avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2291bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2292dv1394_indev_deps="dv1394"
2293dv1394_indev_select="dv_demuxer"
2294fbdev_indev_deps="linux_fb_h"
2295jack_indev_deps="jack_jack_h pthreads"
2296libcdio_indev_deps="libcdio"
2297libdc1394_indev_deps="libdc1394"
2298oss_indev_deps_any="soundcard_h sys_soundcard_h"
2299oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2300pulse_indev_deps="libpulse"
2301sndio_indev_deps="sndio_h"
2302sndio_outdev_deps="sndio_h"
2303v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2304vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2305vfwcap_indev_extralibs="-lavicap32"
2306x11grab_indev_deps="x11grab"
2307x11grab_xcb_indev_deps="libxcb"
2308
2309# protocols
2310ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2311ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2312ffrtmpcrypt_protocol_select="tcp_protocol"
2313ffrtmphttp_protocol_deps="!librtmp_protocol"
2314ffrtmphttp_protocol_select="http_protocol"
2315gopher_protocol_select="network"
2316http_protocol_select="tcp_protocol"
2317httpproxy_protocol_select="tcp_protocol"
2318https_protocol_select="tls_protocol"
2319icecast_protocol_select="http_protocol"
2320librtmp_protocol_deps="librtmp"
2321librtmpe_protocol_deps="librtmp"
2322librtmps_protocol_deps="librtmp"
2323librtmpt_protocol_deps="librtmp"
2324librtmpte_protocol_deps="librtmp"
2325mmsh_protocol_select="http_protocol"
2326mmst_protocol_select="network"
2327rtmp_protocol_deps="!librtmp_protocol"
2328rtmp_protocol_select="tcp_protocol"
2329rtmpe_protocol_select="ffrtmpcrypt_protocol"
2330rtmps_protocol_deps="!librtmp_protocol"
2331rtmps_protocol_select="tls_protocol"
2332rtmpt_protocol_select="ffrtmphttp_protocol"
2333rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2334rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2335rtp_protocol_select="udp_protocol"
2336sctp_protocol_deps="struct_sctp_event_subscribe"
2337sctp_protocol_select="network"
2338srtp_protocol_select="rtp_protocol srtp"
2339tcp_protocol_select="network"
2340tls_gnutls_protocol_deps="gnutls"
2341tls_gnutls_protocol_select="tcp_protocol"
2342tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2343tls_openssl_protocol_select="tcp_protocol"
2344tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2345udp_protocol_select="network"
2346unix_protocol_deps="sys_un_h"
2347unix_protocol_select="network"
2348
2349# filters
2350blackframe_filter_deps="gpl"
2351boxblur_filter_deps="gpl"
2352bs2b_filter_deps="libbs2b"
2353cropdetect_filter_deps="gpl"
2354delogo_filter_deps="gpl"
2355drawtext_filter_deps="libfreetype"
2356frei0r_filter_deps="frei0r dlopen"
2357frei0r_filter_extralibs='$ldl'
2358frei0r_src_filter_deps="frei0r dlopen"
2359frei0r_src_filter_extralibs='$ldl'
2360hqdn3d_filter_deps="gpl"
2361hwupload_cuda_filter_deps="cuda"
2362interlace_filter_deps="gpl"
2363ocv_filter_deps="libopencv"
2364resample_filter_deps="avresample"
2365scale_filter_deps="swscale"
2366scale_npp_filter_deps="cuda libnpp"
2367scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2368
2369# examples
2370avcodec_example_deps="avcodec avutil"
2371filter_audio_example_deps="avfilter avutil"
2372metadata_example_deps="avformat avutil"
2373output_example_deps="avcodec avformat avutil swscale"
2374qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2375transcode_aac_example_deps="avcodec avformat avresample"
2376
2377# libraries, in linking order
2378avcodec_deps="avutil"
2379avdevice_deps="avformat avcodec avutil"
2380avfilter_deps="avutil"
2381avformat_deps="avcodec avutil"
2382avresample_deps="avutil"
2383swscale_deps="avutil"
2384
2385# programs
2386avconv_deps="avcodec avfilter avformat avresample swscale"
2387avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2388 fps_filter null_filter resample_filter scale_filter
2389 setpts_filter trim_filter"
2390avplay_deps="avcodec avfilter avformat avresample sdl"
2391avplay_libs='$sdl_libs'
2392avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2393avprobe_deps="avcodec avformat"
2394
2395# documentation
2396pod2man_deps="doc"
2397texi2html_deps="doc"
2398
2399# default parameters
2400
2401logfile="config.log"
2402
2403# installation paths
2404prefix_default="/usr/local"
2405bindir_default='${prefix}/bin'
2406datadir_default='${prefix}/share/avconv'
2407docdir_default='${prefix}/share/doc/libav'
2408incdir_default='${prefix}/include'
2409libdir_default='${prefix}/lib'
2410mandir_default='${prefix}/share/man'
2411shlibdir_default="$libdir_default"
2412
2413# toolchain
2414ar_default="ar"
2415cc_default="gcc"
2416host_cc_default="gcc"
2417cp_f="cp -f"
2418ln_s="ln -s -f"
2419nm_default="nm -g"
2420objformat="elf"
2421pkg_config_default=pkg-config
2422ranlib="ranlib"
2423strip="strip"
2424yasmexe="yasm"
2425
2426# machine
2427arch_default=$(uname -m)
2428cpu="generic"
2429intrinsics="none"
2430
2431# OS
2432target_os_default=$(tolower $(uname -s))
2433host_os=$target_os_default
2434
2435# configurable options
2436enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2437
2438enable asm
2439enable debug
2440enable doc
2441enable faan faandct faanidct
2442enable optimizations
2443enable safe_bitstream_reader
2444enable static
2445enable swscale_alpha
2446enable valgrind_backtrace
2447
2448# By default, enable only those hwaccels that have no external dependencies.
2449enable d3d11va dxva2 vda vdpau
2450
2451# build settings
2452SHFLAGS='-shared -Wl,-soname,$$(@F)'
2453LIBPREF="lib"
2454LIBSUF=".a"
2455FULLNAME='$(NAME)$(BUILDSUF)'
2456LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2457SLIBPREF="lib"
2458SLIBSUF=".so"
2459SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2460SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2461SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2462LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2463SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2464SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2465
2466asflags_filter=echo
2467cflags_filter=echo
2468ldflags_filter=echo
2469
2470AS_C='-c'
2471AS_O='-o $@'
2472CC_C='-c'
2473CC_E='-E -o $@'
2474CC_O='-o $@'
2475OBJCC_C='-c'
2476OBJCC_E='-E -o $@'
2477OBJCC_O='-o $@'
2478LD_O='-o $@'
2479LD_LIB='-l%'
2480LD_PATH='-L'
2481HOSTCC_C='-c'
2482HOSTCC_E='-E -o $@'
2483HOSTCC_O='-o $@'
2484HOSTLD_O='-o $@'
2485
2486host_libs='-lm'
2487host_cflags_filter=echo
2488host_ldflags_filter=echo
2489
2490target_path='$(CURDIR)'
2491
2492# since the object filename is not given with the -MM flag, the compiler
2493# is only able to print the basename, and we must add the path ourselves
2494DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2495DEPFLAGS='-MM'
2496
2497# find source path
2498if test -f configure; then
2499 source_path=.
2500else
2501 source_path=$(cd $(dirname "$0"); pwd)
2502 echo "$source_path" | grep -q '[[:blank:]]' &&
2503 die "Out of tree builds are impossible with whitespace in source path."
2504 test -e "$source_path/config.h" &&
2505 die "Out of tree builds are impossible with config.h in source dir."
2506fi
2507
2508for v in "$@"; do
2509 r=${v#*=}
2510 l=${v%"$r"}
2511 r=$(sh_quote "$r")
2512 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2513done
2514
2515find_things(){
2516 thing=$1
2517 pattern=$2
2518 file=$source_path/$3
2519 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2520}
2521
2522ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2523DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2524HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2525PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2526MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2527DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2528OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2529INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2530FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2531
2532find_things_extern(){
2533 thing=$1
2534 pattern=$2
2535 file=$source_path/$3
2536 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2537}
2538
2539BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2540PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2541
2542ALL_COMPONENTS="
2543 $BSF_LIST
2544 $DECODER_LIST
2545 $DEMUXER_LIST
2546 $ENCODER_LIST
2547 $FILTER_LIST
2548 $HWACCEL_LIST
2549 $INDEV_LIST
2550 $MUXER_LIST
2551 $OUTDEV_LIST
2552 $PARSER_LIST
2553 $PROTOCOL_LIST
2554"
2555
2556for n in $COMPONENT_LIST; do
2557 v=$(toupper ${n%s})_LIST
2558 eval enable \$$v
2559 eval ${n}_if_any="\$$v"
2560done
2561
2562enable $ARCH_EXT_LIST
2563
2564die_unknown(){
2565 echo "Unknown option \"$1\"."
2566 echo "See $0 --help for available options."
2567 exit 1
2568}
2569
2570print_3_columns() {
2571 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2572}
2573
2574show_list() {
2575 suffix=_$1
2576 shift
2577 echo $* | sed s/$suffix//g | print_3_columns
2578 exit 0
2579}
2580
2581rand_list(){
2582 IFS=', '
2583 set -- $*
2584 unset IFS
2585 for thing; do
2586 comp=${thing%:*}
2587 prob=${thing#$comp}
2588 prob=${prob#:}
2589 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2590 echo "prob ${prob:-0.5}"
2591 printf '%s\n' $comp
2592 done
2593}
2594
2595do_random(){
2596 action=$1
2597 shift
2598 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2599 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2600}
2601
2602for opt do
2603 optval="${opt#*=}"
2604 case "$opt" in
2605 --extra-ldflags=*)
2606 add_ldflags $optval
2607 ;;
2608 --extra-ldexeflags=*)
2609 add_ldexeflags $optval
2610 ;;
2611 --extra-libs=*)
2612 add_extralibs $optval
2613 ;;
2614 --disable-devices)
2615 disable $INDEV_LIST $OUTDEV_LIST
2616 ;;
2617 --enable-debug=*)
2618 debuglevel="$optval"
2619 ;;
2620 --disable-programs)
2621 disable $PROGRAM_LIST
2622 ;;
2623 --disable-everything)
2624 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2625 ;;
2626 --disable-all)
2627 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2628 disable $LIBRARY_LIST $PROGRAM_LIST doc
2629 ;;
2630 --enable-random|--disable-random)
2631 action=${opt%%-random}
2632 do_random ${action#--} $COMPONENT_LIST
2633 ;;
2634 --enable-random=*|--disable-random=*)
2635 action=${opt%%-random=*}
2636 do_random ${action#--} $optval
2637 ;;
2638 --enable-*=*|--disable-*=*)
2639 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2640 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2641 eval list=\$$(toupper $thing)_LIST
2642 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2643 $action $(filter "$name" $list)
2644 ;;
2645 --enable-avserver|--disable-avserver*)
2646 warn "avserver has been removed, the ${opt} option is only"\
2647 "provided for compatibility and will be removed in the future"
2648 ;;
2649 --enable-?*|--disable-?*)
2650 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2651 if is_in $option $COMPONENT_LIST; then
2652 test $action = disable && action=unset
2653 eval $action \$$(toupper ${option%s})_LIST
2654 elif is_in $option $CMDLINE_SELECT; then
2655 $action $option
2656 else
2657 die_unknown $opt
2658 fi
2659 ;;
2660 --list-*)
2661 NAME="${opt#--list-}"
2662 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2663 NAME=${NAME%s}
2664 eval show_list $NAME \$$(toupper $NAME)_LIST
2665 ;;
2666 --help|-h) show_help
2667 ;;
2668 *)
2669 optname="${opt%%=*}"
2670 optname="${optname#--}"
2671 optname=$(echo "$optname" | sed 's/-/_/g')
2672 if is_in $optname $CMDLINE_SET; then
2673 eval $optname='$optval'
2674 elif is_in $optname $CMDLINE_APPEND; then
2675 append $optname "$optval"
2676 else
2677 die_unknown $opt
2678 fi
2679 ;;
2680 esac
2681done
2682
2683for e in $env; do
2684 eval "export $e"
2685done
2686
2687disabled logging && logfile=/dev/null
2688
2689# Disable all the library-specific components if the library itself
2690# is disabled, see AVCODEC_LIST and following _LIST variables.
2691
2692disable_components(){
2693 disabled ${1} && disable $(
2694 eval components="\$$(toupper ${1})_COMPONENTS"
2695 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2696 )
2697}
2698
2699map 'disable_components $v' $LIBRARY_LIST
2700
2701echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2702set >> $logfile
2703
2704case "$toolchain" in
2705 *-asan)
2706 cc_default="${toolchain%-asan}"
2707 add_cflags -fsanitize=address
2708 add_ldflags -fsanitize=address
2709 ;;
2710 *-msan)
2711 cc_default="${toolchain%-msan}"
2712 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2713 add_ldflags -fsanitize=memory
2714 ;;
2715 *-tsan)
2716 cc_default="${toolchain%-tsan}"
2717 add_cflags -fsanitize=thread -pie
2718 add_ldflags -fsanitize=thread -pie
2719 case "$toolchain" in
2720 gcc-tsan)
2721 add_cflags -fPIC
2722 add_ldflags -fPIC
2723 ;;
2724 esac
2725 ;;
2726 *-usan)
2727 cc_default="${toolchain%-usan}"
2728 add_cflags -fsanitize=undefined
2729 add_ldflags -fsanitize=undefined
2730 case "$toolchain" in
2731 clang-usan)
2732 add_cflags -O1
2733 ;;
2734 esac
2735 ;;
2736 valgrind-*)
2737 target_exec_default="valgrind"
2738 case "$toolchain" in
2739 valgrind-massif)
2740 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2741 ;;
2742 valgrind-memcheck)
2743 target_exec_args="--track-origins=yes --leak-check=full"
2744 ;;
2745 esac
2746 ;;
2747 msvc)
2748 # Check whether the current MSVC version needs the C99 converter.
2749 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2750 # support enough of C99 to build libav. Default to the new
2751 # behaviour if the regexp was unable to match anything, since this
2752 # successfully parses the version number of existing supported
2753 # versions that require the converter (MSVC 2010 and 2012).
2754 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2755 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2756 cc_default="cl"
2757 else
2758 cc_default="c99wrap cl"
2759 fi
2760 ld_default="$source_path/compat/windows/mslink"
2761 nm_default="dumpbin -symbols"
2762 ar_default="lib"
2763 case "$arch" in
2764 arm*)
2765 as_default="armasm"
2766 ;;
2767 esac
2768 target_os_default="win32"
2769 # Use a relative path for TMPDIR. This makes sure all the
2770 # ffconf temp files are written with a relative path, avoiding
2771 # issues with msys/win32 path conversion for MSVC parameters
2772 # such as -Fo<file> or -out:<file>.
2773 TMPDIR=.
2774 ;;
2775 icl)
2776 cc_default="icl"
2777 ld_default="xilink"
2778 nm_default="dumpbin -symbols"
2779 ar_default="xilib"
2780 target_os_default="win32"
2781 TMPDIR=.
2782 ;;
2783 gcov)
2784 add_cflags -fprofile-arcs -ftest-coverage
2785 add_ldflags -fprofile-arcs -ftest-coverage
2786 ;;
2787 llvm-cov)
2788 add_cflags -fprofile-arcs -ftest-coverage
2789 add_ldflags --coverage
2790 ;;
2791 hardened)
2792 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2793 add_cflags -fno-strict-overflow -fstack-protector-all
2794 add_ldflags -Wl,-z,relro -Wl,-z,now
2795 ;;
2796 ?*)
2797 die "Unknown toolchain $toolchain"
2798 ;;
2799esac
2800
2801test -n "$cross_prefix" && enable cross_compile
2802
2803if enabled cross_compile; then
2804 test -n "$arch" && test -n "$target_os" ||
2805 die "Must specify target arch and OS when cross-compiling"
2806fi
2807
2808ar_default="${cross_prefix}${ar_default}"
2809cc_default="${cross_prefix}${cc_default}"
2810occ_default="${cross_prefix}${occ_default}"
2811nm_default="${cross_prefix}${nm_default}"
2812pkg_config_default="${cross_prefix}${pkg_config_default}"
2813ranlib="${cross_prefix}${ranlib}"
2814strip="${cross_prefix}${strip}"
2815
2816sysinclude_default="${sysroot}/usr/include"
2817
2818set_default arch cc pkg_config sysinclude target_exec target_os
2819enabled cross_compile || host_cc_default=$cc
2820set_default host_cc
2821
2822if ! $pkg_config --version >/dev/null 2>&1; then
2823 warn "$pkg_config not found, library detection may fail."
2824 pkg_config=false
2825fi
2826
2827exesuf() {
2828 case $1 in
2829 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2830 esac
2831}
2832
2833EXESUF=$(exesuf $target_os)
2834HOSTEXESUF=$(exesuf $host_os)
2835
2836# set temporary file name
2837: ${TMPDIR:=$TEMPDIR}
2838: ${TMPDIR:=$TMP}
2839: ${TMPDIR:=/tmp}
2840
2841if ! check_cmd mktemp -u XXXXXX; then
2842 # simple replacement for missing mktemp
2843 # NOT SAFE FOR GENERAL USE
2844 mktemp(){
2845 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2846 }
2847fi
2848
2849tmpfile(){
2850 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2851 (set -C; exec > $tmp) 2>/dev/null ||
2852 die "Unable to create temporary file in $TMPDIR."
2853 append TMPFILES $tmp
2854 eval $1=$tmp
2855}
2856
2857trap 'rm -f -- $TMPFILES' EXIT
2858
2859tmpfile TMPASM .asm
2860tmpfile TMPC .c
2861tmpfile TMPE $EXESUF
2862tmpfile TMPH .h
2863tmpfile TMPO .o
2864tmpfile TMPS .S
2865tmpfile TMPSH .sh
2866tmpfile TMPV .ver
2867
2868unset -f mktemp
2869
2870chmod +x $TMPE
2871
2872# make sure we can execute files in $TMPDIR
2873cat > $TMPSH 2>> $logfile <<EOF
2874#! /bin/sh
2875EOF
2876chmod +x $TMPSH >> $logfile 2>&1
2877if ! $TMPSH >> $logfile 2>&1; then
2878 cat <<EOF
2879Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2880variable to another directory and make sure that it is not mounted noexec.
2881EOF
2882 die "Sanity test failed."
2883fi
2884
2885armasm_flags(){
2886 for flag; do
2887 case $flag in
2888 # Filter out MSVC cl.exe options from cflags that shouldn't
2889 # be passed to gas-preprocessor
2890 -M[TD]*) ;;
2891 *) echo $flag ;;
2892 esac
2893 done
2894}
2895
2896ccc_flags(){
2897 for flag; do
2898 case $flag in
2899 -std=c99) echo -c99 ;;
2900 -mcpu=*) echo -arch ${flag#*=} ;;
2901 -mieee) echo -ieee ;;
2902 -O*|-fast) echo $flag ;;
2903 -fno-math-errno) echo -assume nomath_errno ;;
2904 -g) echo -g3 ;;
2905 -Wall) echo -msg_enable level2 ;;
2906 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2907 -Wl,*) echo $flag ;;
2908 -f*|-W*) ;;
2909 *) echo $flag ;;
2910 esac
2911 done
2912}
2913
2914cparser_flags(){
2915 for flag; do
2916 case $flag in
2917 -Wno-switch) echo -Wno-switch-enum ;;
2918 -Wno-format-zero-length) ;;
2919 -Wdisabled-optimization) ;;
2920 -Wno-pointer-sign) echo -Wno-other ;;
2921 *) echo $flag ;;
2922 esac
2923 done
2924}
2925
2926msvc_common_flags(){
2927 for flag; do
2928 case $flag in
2929 # In addition to specifying certain flags under the compiler
2930 # specific filters, they must be specified here as well or else the
2931 # generic catch all at the bottom will print the original flag.
2932 -Wall) ;;
2933 -std=c99) ;;
2934 # Common flags
2935 -fomit-frame-pointer) ;;
2936 -g) echo -Z7 ;;
2937 -fno-math-errno) ;;
2938 -fno-common) ;;
2939 -fno-signed-zeros) ;;
2940 -fPIC) ;;
2941 -mthumb) ;;
2942 -march=*) ;;
2943 -lz) echo zlib.lib ;;
2944 -lavifil32) echo vfw32.lib ;;
2945 -lavicap32) echo vfw32.lib user32.lib ;;
2946 -lx264) echo libx264.lib ;;
2947 -l*) echo ${flag#-l}.lib ;;
2948 -L*) echo -libpath:${flag#-L} ;;
2949 *) echo $flag ;;
2950 esac
2951 done
2952}
2953
2954msvc_flags(){
2955 msvc_common_flags "$@"
2956 for flag; do
2957 case $flag in
2958 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2959 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2960 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2961 -wd4273 -wd4554 -wd4701 ;;
2962 esac
2963 done
2964}
2965
2966icl_flags(){
2967 msvc_common_flags "$@"
2968 for flag; do
2969 case $flag in
2970 # Despite what Intel's documentation says -Wall, which is supported
2971 # on Windows, does enable remarks so disable them here.
2972 -Wall) echo $flag -Qdiag-disable:remark ;;
2973 -std=c99) echo -Qstd=c99 ;;
2974 esac
2975 done
2976}
2977
2978pgi_flags(){
2979 for flag; do
2980 case $flag in
2981 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2982 -fomit-frame-pointer) echo -Mnoframe ;;
2983 -g) echo -gopt ;;
2984 *) echo $flag ;;
2985 esac
2986 done
2987}
2988
2989suncc_flags(){
2990 for flag; do
2991 case $flag in
2992 -march=*|-mcpu=*)
2993 case "${flag#*=}" in
2994 native) echo -xtarget=native ;;
2995 v9|niagara) echo -xarch=sparc ;;
2996 ultrasparc) echo -xarch=sparcvis ;;
2997 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2998 i586|pentium) echo -xchip=pentium ;;
2999 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3000 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3001 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3002 pentium4*) echo -xtarget=pentium4 ;;
3003 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3004 *-sse3) echo -xarch=sse3 ;;
3005 core2) echo -xarch=ssse3 -xchip=core2 ;;
3006 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3007 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3008 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3009 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3010 k8|opteron|athlon64|athlon-fx)
3011 echo -xarch=sse2a ;;
3012 athlon*) echo -xarch=pentium_proa ;;
3013 esac
3014 ;;
3015 -std=c99) echo -xc99 ;;
3016 -fomit-frame-pointer) echo -xregs=frameptr ;;
3017 -fPIC) echo -KPIC -xcode=pic32 ;;
3018 -W*,*) echo $flag ;;
3019 -f*-*|-W*|-mimpure-text) ;;
3020 -shared) echo -G ;;
3021 *) echo $flag ;;
3022 esac
3023 done
3024}
3025
3026tms470_flags(){
3027 for flag; do
3028 case $flag in
3029 -march=*|-mcpu=*)
3030 case "${flag#*=}" in
3031 armv7-a|cortex-a*) echo -mv=7a8 ;;
3032 armv7-r|cortex-r*) echo -mv=7r4 ;;
3033 armv7-m|cortex-m*) echo -mv=7m3 ;;
3034 armv6*|arm11*) echo -mv=6 ;;
3035 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3036 echo -mv=5e ;;
3037 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3038 esac
3039 ;;
3040 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3041 -mfpu=vfp) echo --float_support=vfpv2 ;;
3042 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3043 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3044 -msoft-float) echo --float_support=vfplib ;;
3045 -O[0-3]|-mf=*) echo $flag ;;
3046 -g) echo -g -mn ;;
3047 -pds=*) echo $flag ;;
3048 -D*|-I*) echo $flag ;;
3049 --gcc|--abi=*) echo $flag ;;
3050 -me) echo $flag ;;
3051 esac
3052 done
3053}
3054
3055probe_cc(){
3056 pfx=$1
3057 _cc=$2
3058
3059 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3060 unset _ld_o _ldflags _ld_lib _ld_path
3061 unset _depflags _DEPCMD _DEPFLAGS
3062 _flags_filter=echo
3063
3064 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3065 _type=llvm_gcc
3066 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3067 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3068 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3069 _cflags_speed='-O3'
3070 _cflags_size='-Os'
3071 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3072 _type=gcc
3073 gcc_version=$($_cc --version | head -n1)
3074 gcc_basever=$($_cc -dumpversion)
3075 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3076 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3077 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3078 if ! $_cc -dumpversion | grep -q '^2\.'; then
3079 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3080 fi
3081 _cflags_speed='-O3'
3082 _cflags_size='-Os'
3083 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3084 _type=icc
3085 _ident=$($_cc --version | head -n1)
3086 _depflags='-MMD'
3087 _cflags_speed='-O3'
3088 _cflags_size='-Os'
3089 _cflags_noopt='-O1'
3090 elif $_cc -v 2>&1 | grep -q xlc; then
3091 _type=xlc
3092 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3093 _cflags_speed='-O5'
3094 _cflags_size='-O5 -qcompact'
3095 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3096 _type=ccc
3097 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3098 _DEPFLAGS='-M'
3099 _cflags_speed='-fast'
3100 _cflags_size='-O1'
3101 _flags_filter=ccc_flags
3102 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3103 test -d "$sysroot" || die "No valid sysroot specified."
3104 _type=armcc
3105 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3106 armcc_conf="$PWD/armcc.conf"
3107 $_cc --arm_linux_configure \
3108 --arm_linux_config_file="$armcc_conf" \
3109 --configure_sysroot="$sysroot" \
3110 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3111 die "Error creating armcc configuration file."
3112 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3113 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3114 as_default="${cross_prefix}gcc"
3115 _depflags='-MMD'
3116 _cflags_speed='-O3'
3117 _cflags_size='-Os'
3118 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3119 _type=tms470
3120 _ident=$($_cc -version | head -n1 | tr -s ' ')
3121 _flags='--gcc --abi=eabi -me'
3122 _cc_e='-ppl -fe=$@'
3123 _cc_o='-fe=$@'
3124 _depflags='-ppa -ppd=$(@:.o=.d)'
3125 _cflags_speed='-O3 -mf=5'
3126 _cflags_size='-O3 -mf=2'
3127 _flags_filter=tms470_flags
3128 elif $_cc -v 2>&1 | grep -q clang; then
3129 _type=clang
3130 _ident=$($_cc --version 2>/dev/null | head -n1)
3131 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3132 _cflags_speed='-O3'
3133 _cflags_size='-Os'
3134 elif $_cc -V 2>&1 | grep -q Sun; then
3135 _type=suncc
3136 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3137 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3138 _DEPFLAGS='-xM1 -xc99'
3139 _ldflags='-std=c99'
3140 _cflags_speed='-O5'
3141 _cflags_size='-O5 -xspace'
3142 _flags_filter=suncc_flags
3143 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3144 _type=pathscale
3145 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3146 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3147 _cflags_speed='-O2'
3148 _cflags_size='-Os'
3149 _flags_filter='filter_out -Wdisabled-optimization'
3150 elif $_cc -v 2>&1 | grep -q Open64; then
3151 _type=open64
3152 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3153 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3154 _cflags_speed='-O2'
3155 _cflags_size='-Os'
3156 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3157 elif $_cc -V 2>&1 | grep -q Portland; then
3158 _type=pgi
3159 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3160 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3161 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3162 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3163 _cflags_noopt="-O1"
3164 _flags_filter=pgi_flags
3165 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3166 _type=armasm
3167 _ident=$($_cc | head -n1)
3168 # 4509: "This form of conditional instruction is deprecated"
3169 _flags="-nologo -ignore 4509"
3170 _flags_filter=armasm_flags
3171 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3172 _type=msvc
3173 _ident=$($_cc 2>&1 | head -n1)
3174 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3175 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3176 _cflags_speed="-O2"
3177 _cflags_size="-O1"
3178 if $_cc -nologo- 2>&1 | grep -q Linker; then
3179 _ld_o='-out:$@'
3180 else
3181 _ld_o='-Fe$@'
3182 fi
3183 _cc_o='-Fo$@'
3184 _cc_e='-P -Fi$@'
3185 _flags_filter=msvc_flags
3186 _ld_lib='lib%.a'
3187 _ld_path='-libpath:'
3188 _flags='-nologo'
3189 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3190 elif $_cc 2>&1 | grep -q Intel; then
3191 _type=icl
3192 _ident=$($_cc 2>&1 | head -n1)
3193 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3194 # Not only is O3 broken on 13.x+ but it is slower on all previous
3195 # versions (tested) as well.
3196 _cflags_speed="-O2"
3197 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3198 if $_cc 2>&1 | grep -q Linker; then
3199 _ld_o='-out:$@'
3200 else
3201 _ld_o='-Fe$@'
3202 fi
3203 _cc_o='-Fo$@'
3204 _cc_e='-P'
3205 _flags_filter=icl_flags
3206 _ld_lib='lib%.a'
3207 _ld_path='-libpath:'
3208 # -Qdiag-error to make icl error when seeing certain unknown arguments
3209 _flags='-nologo -Qdiag-error:4044,10157'
3210 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3211 # with MSVC which enables it by default.
3212 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3213 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3214 _type=cparser
3215 _ident=$($_cc --version | head -n1)
3216 _depflags='-MMD'
3217 _cflags_speed='-O4'
3218 _cflags_size='-O2'
3219 _flags_filter=cparser_flags
3220 fi
3221
3222 eval ${pfx}_type=\$_type
3223 eval ${pfx}_ident=\$_ident
3224}
3225
3226set_ccvars(){
3227 eval ${1}_C=\${_cc_c-\${${1}_C}}
3228 eval ${1}_E=\${_cc_e-\${${1}_E}}
3229 eval ${1}_O=\${_cc_o-\${${1}_O}}
3230
3231 if [ -n "$_depflags" ]; then
3232 eval ${1}_DEPFLAGS=\$_depflags
3233 else
3234 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3235 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3236 eval DEP${1}FLAGS=\$_flags
3237 fi
3238}
3239
3240probe_cc cc "$cc"
3241cflags_filter=$_flags_filter
3242cflags_speed=$_cflags_speed
3243cflags_size=$_cflags_size
3244cflags_noopt=$_cflags_noopt
3245add_cflags $_flags $_cflags
3246cc_ldflags=$_ldflags
3247set_ccvars CC
3248
3249probe_cc hostcc "$host_cc"
3250host_cflags_filter=$_flags_filter
3251add_host_cflags $_flags $_cflags
3252set_ccvars HOSTCC
3253
3254test -n "$cc_type" && enable $cc_type ||
3255 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3256
3257: ${as_default:=$cc}
3258: ${objcc_default:=$cc}
3259: ${dep_cc_default:=$cc}
3260: ${ld_default:=$cc}
3261: ${host_ld_default:=$host_cc}
3262set_default ar as objcc dep_cc ld host_ld
3263
3264probe_cc as "$as"
3265asflags_filter=$_flags_filter
3266add_asflags $_flags $_cflags
3267set_ccvars AS
3268
3269probe_cc objcc "$objcc"
3270objcflags_filter=$_flags_filter
3271add_objcflags $_flags $_cflags
3272set_ccvars OBJC
3273
3274probe_cc ld "$ld"
3275ldflags_filter=$_flags_filter
3276add_ldflags $_flags $_ldflags
3277test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3278LD_O=${_ld_o-$LD_O}
3279LD_LIB=${_ld_lib-$LD_LIB}
3280LD_PATH=${_ld_path-$LD_PATH}
3281
3282probe_cc hostld "$host_ld"
3283host_ldflags_filter=$_flags_filter
3284add_host_ldflags $_flags $_ldflags
3285HOSTLD_O=${_ld_o-$HOSTLD_O}
3286
3287if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3288 probe_cc depcc "$dep_cc"
3289 CCDEP=${_DEPCMD:-$DEPCMD}
3290 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3291 DEPCCFLAGS=$_flags
3292fi
3293
3294if $ar 2>&1 | grep -q Microsoft; then
3295 arflags="-nologo"
3296 ar_o='-out:$@'
3297elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3298 arflags="rq"
3299 ar_o='$@'
3300elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3301 arflags='-Xany -r -c'
3302 ar_o='$@'
3303else
3304 arflags="rc"
3305 ar_o='$@'
3306fi
3307
3308add_cflags $extra_cflags
3309add_objcflags $extra_objcflags
3310add_asflags $extra_cflags
3311
3312if test -n "$sysroot"; then
3313 case "$cc_type" in
3314 gcc|llvm_gcc|clang)
3315 add_cppflags --sysroot="$sysroot"
3316 add_ldflags --sysroot="$sysroot"
3317 ;;
3318 tms470)
3319 add_cppflags -I"$sysinclude"
3320 add_ldflags --sysroot="$sysroot"
3321 ;;
3322 esac
3323fi
3324
3325if test "$cpu" = host; then
3326 enabled cross_compile &&
3327 die "--cpu=host makes no sense when cross-compiling."
3328
3329 case "$cc_type" in
3330 gcc|llvm_gcc)
3331 check_native(){
3332 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3333 sed -n "/cc1.*$1=/{
3334 s/.*$1=\\([^ ]*\\).*/\\1/
3335 p
3336 q
3337 }" $TMPE
3338 }
3339 cpu=$(check_native -march || check_native -mcpu)
3340 ;;
3341 esac
3342
3343 test "${cpu:-host}" = host &&
3344 die "--cpu=host not supported with compiler $cc"
3345fi
3346
3347# Deal with common $arch aliases
3348case "$arch" in
3349 aarch64|arm64)
3350 arch="aarch64"
3351 ;;
3352 arm*)
3353 arch="arm"
3354 ;;
3355 mips*|IP*)
3356 case "$arch" in
3357 *el)
3358 add_cppflags -EL
3359 add_ldflags -EL
3360 ;;
3361 *eb)
3362 add_cppflags -EB
3363 add_ldflags -EB
3364 ;;
3365 esac
3366 arch="mips"
3367 ;;
3368 parisc*|hppa*)
3369 arch="parisc"
3370 ;;
3371 "Power Macintosh"|ppc*|powerpc*)
3372 arch="ppc"
3373 ;;
3374 s390|s390x)
3375 arch="s390"
3376 ;;
3377 sh4|sh)
3378 arch="sh4"
3379 ;;
3380 sun4u|sparc*)
3381 arch="sparc"
3382 ;;
3383 tilegx|tile-gx)
3384 arch="tilegx"
3385 ;;
3386 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3387 arch="x86"
3388 ;;
3389esac
3390
3391is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3392enable $arch
3393
3394# Add processor-specific flags
3395if enabled aarch64; then
3396
3397 case $cpu in
3398 armv*)
3399 cpuflags="-march=$cpu"
3400 ;;
3401 *)
3402 cpuflags="-mcpu=$cpu"
3403 ;;
3404 esac
3405
3406elif enabled alpha; then
3407
3408 cpuflags="-mcpu=$cpu"
3409
3410elif enabled arm; then
3411
3412 check_arm_arch() {
3413 check_cpp_condition stddef.h \
3414 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3415 $cpuflags
3416 }
3417
3418 probe_arm_arch() {
3419 if check_arm_arch 4; then echo armv4;
3420 elif check_arm_arch 4T; then echo armv4t;
3421 elif check_arm_arch 5; then echo armv5;
3422 elif check_arm_arch 5E; then echo armv5e;
3423 elif check_arm_arch 5T; then echo armv5t;
3424 elif check_arm_arch 5TE; then echo armv5te;
3425 elif check_arm_arch 5TEJ; then echo armv5te;
3426 elif check_arm_arch 6; then echo armv6;
3427 elif check_arm_arch 6J; then echo armv6j;
3428 elif check_arm_arch 6K; then echo armv6k;
3429 elif check_arm_arch 6Z; then echo armv6z;
3430 elif check_arm_arch 6ZK; then echo armv6zk;
3431 elif check_arm_arch 6T2; then echo armv6t2;
3432 elif check_arm_arch 7; then echo armv7;
3433 elif check_arm_arch 7A 7_A; then echo armv7-a;
3434 elif check_arm_arch 7S; then echo armv7-a;
3435 elif check_arm_arch 7R 7_R; then echo armv7-r;
3436 elif check_arm_arch 7M 7_M; then echo armv7-m;
3437 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3438 elif check_arm_arch 8A 8_A; then echo armv8-a;
3439 fi
3440 }
3441
3442 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3443
3444 case $cpu in
3445 armv*)
3446 cpuflags="-march=$cpu"
3447 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3448 ;;
3449 *)
3450 cpuflags="-mcpu=$cpu"
3451 case $cpu in
3452 cortex-a*) subarch=armv7a ;;
3453 cortex-r*) subarch=armv7r ;;
3454 cortex-m*) enable thumb; subarch=armv7m ;;
3455 arm11*) subarch=armv6 ;;
3456 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3457 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3458 *) subarch=$(probe_arm_arch) ;;
3459 esac
3460 ;;
3461 esac
3462
3463 case "$subarch" in
3464 armv5t*) enable fast_clz ;;
3465 armv[6-8]*) enable fast_clz fast_unaligned ;;
3466 esac
3467
3468elif enabled avr32; then
3469
3470 case $cpu in
3471 ap7[02]0[0-2])
3472 subarch="avr32_ap"
3473 cpuflags="-mpart=$cpu"
3474 ;;
3475 ap)
3476 subarch="avr32_ap"
3477 cpuflags="-march=$cpu"
3478 ;;
3479 uc3[ab]*)
3480 subarch="avr32_uc"
3481 cpuflags="-mcpu=$cpu"
3482 ;;
3483 uc)
3484 subarch="avr32_uc"
3485 cpuflags="-march=$cpu"
3486 ;;
3487 esac
3488
3489elif enabled bfin; then
3490
3491 cpuflags="-mcpu=$cpu"
3492
3493elif enabled mips; then
3494
3495 cpuflags="-march=$cpu"
3496
3497elif enabled ppc; then
3498
3499 disable ldbrx
3500
3501 case $(tolower $cpu) in
3502 601|ppc601|powerpc601)
3503 cpuflags="-mcpu=601"
3504 disable altivec
3505 ;;
3506 603*|ppc603*|powerpc603*)
3507 cpuflags="-mcpu=603"
3508 disable altivec
3509 ;;
3510 604*|ppc604*|powerpc604*)
3511 cpuflags="-mcpu=604"
3512 disable altivec
3513 ;;
3514 g3|75*|ppc75*|powerpc75*)
3515 cpuflags="-mcpu=750"
3516 disable altivec
3517 ;;
3518 g4|745*|ppc745*|powerpc745*)
3519 cpuflags="-mcpu=7450"
3520 disable vsx
3521 ;;
3522 74*|ppc74*|powerpc74*)
3523 cpuflags="-mcpu=7400"
3524 disable vsx
3525 ;;
3526 g5|970|ppc970|powerpc970)
3527 cpuflags="-mcpu=970"
3528 disable vsx
3529 ;;
3530 power[3-6]*)
3531 cpuflags="-mcpu=$cpu"
3532 disable vsx
3533 ;;
3534 power[7-8]*)
3535 cpuflags="-mcpu=$cpu"
3536 enable ldbrx
3537 ;;
3538 cell)
3539 cpuflags="-mcpu=cell"
3540 enable ldbrx
3541 disable vsx
3542 ;;
3543 e500mc)
3544 cpuflags="-mcpu=e500mc"
3545 disable altivec
3546 ;;
3547 e500v2)
3548 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3549 disable altivec
3550 disable dcbzl
3551 ;;
3552 e500)
3553 cpuflags="-mcpu=8540 -mhard-float"
3554 disable altivec
3555 disable dcbzl
3556 ;;
3557 esac
3558
3559elif enabled sparc; then
3560
3561 case $cpu in
3562 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3563 cpuflags="-mcpu=$cpu"
3564 ;;
3565 ultrasparc*|niagara[234])
3566 cpuflags="-mcpu=$cpu"
3567 ;;
3568 esac
3569
3570elif enabled x86; then
3571
3572 case $cpu in
3573 i[345]86|pentium)
3574 cpuflags="-march=$cpu"
3575 disable i686
3576 disable mmx
3577 ;;
3578 # targets that do NOT support nopl and conditional mov (cmov)
3579 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3580 cpuflags="-march=$cpu"
3581 disable i686
3582 ;;
3583 # targets that do support nopl and conditional mov (cmov)
3584 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3585 cpuflags="-march=$cpu"
3586 enable i686
3587 enable fast_cmov
3588 ;;
3589 # targets that do support conditional mov but on which it's slow
3590 pentium4|pentium4m|prescott|nocona)
3591 cpuflags="-march=$cpu"
3592 enable i686
3593 disable fast_cmov
3594 ;;
3595 esac
3596
3597fi
3598
3599if [ "$cpu" != generic ]; then
3600 add_cflags $cpuflags
3601 add_asflags $cpuflags
3602 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3603fi
3604
3605# compiler sanity check
3606check_exec <<EOF
3607int main(void){ return 0; }
3608EOF
3609if test "$?" != 0; then
3610 echo "$cc is unable to create an executable file."
3611 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3612 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3613 echo "Only do this if you know what cross compiling means."
3614 fi
3615 die "C compiler test failed."
3616fi
3617
3618add_cppflags -D_ISOC99_SOURCE
3619check_cflags -std=c99
3620check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3621#include <stdlib.h>
3622EOF
3623check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3624#include <stdlib.h>
3625EOF
3626
3627add_host_cppflags -D_ISOC99_SOURCE
3628check_host_cflags -std=c99
3629check_host_cflags -Wall
3630check_host_cflags -O3
3631
3632check_64bit(){
3633 arch32=$1
3634 arch64=$2
3635 expr=$3
3636 check_code cc "" "int test[2*($expr) - 1]" &&
3637 subarch=$arch64 || subarch=$arch32
3638}
3639
3640case "$arch" in
3641 aarch64|alpha|ia64)
3642 spic=$shared
3643 ;;
3644 mips)
3645 check_64bit mips mips64 '_MIPS_SIM > 1'
3646 spic=$shared
3647 ;;
3648 parisc)
3649 check_64bit parisc parisc64 'sizeof(void *) > 4'
3650 spic=$shared
3651 ;;
3652 ppc)
3653 check_64bit ppc ppc64 'sizeof(void *) > 4'
3654 spic=$shared
3655 ;;
3656 s390)
3657 check_64bit s390 s390x 'sizeof(void *) > 4'
3658 spic=$shared
3659 ;;
3660 sparc)
3661 check_64bit sparc sparc64 'sizeof(void *) > 4'
3662 spic=$shared
3663 ;;
3664 x86)
3665 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3666 if test "$subarch" = "x86_64"; then
3667 spic=$shared
3668 fi
3669 ;;
3670esac
3671
3672enable $subarch
3673enabled spic && enable_weak pic
3674
3675# OS specific
3676case $target_os in
3677 aix)
3678 SHFLAGS=-shared
3679 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3680 enabled shared && add_ldflags -Wl,-brtl
3681 ;;
3682 android)
3683 disable symver
3684 enable section_data_rel_ro
3685 SLIB_INSTALL_NAME='$(SLIBNAME)'
3686 SLIB_INSTALL_LINKS=
3687 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3688 ;;
3689 haiku)
3690 prefix_default="/boot/common"
3691 network_extralibs="-lnetwork"
3692 host_libs=
3693 ;;
3694 sunos)
3695 SHFLAGS='-shared -Wl,-h,$$(@F)'
3696 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3697 network_extralibs="-lsocket -lnsl"
3698 # When using suncc to build, the Solaris linker will mark
3699 # an executable with each instruction set encountered by
3700 # the Solaris assembler. As our libraries contain their own
3701 # guards for processor-specific code, instead suppress
3702 # generation of the HWCAPS ELF section on Solaris x86 only.
3703 enabled_all suncc x86 &&
3704 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3705 add_ldflags -Wl,-M,mapfile
3706 nm_default='nm -P -g'
3707 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3708 ;;
3709 netbsd)
3710 disable symver
3711 oss_indev_extralibs="-lossaudio"
3712 oss_outdev_extralibs="-lossaudio"
3713 ;;
3714 openbsd|bitrig)
3715 disable symver
3716 SHFLAGS='-shared'
3717 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3718 SLIB_INSTALL_LINKS=
3719 oss_indev_extralibs="-lossaudio"
3720 oss_outdev_extralibs="-lossaudio"
3721 ;;
3722 dragonfly)
3723 disable symver
3724 ;;
3725 freebsd)
3726 ;;
3727 bsd/os)
3728 add_extralibs -lpoll -lgnugetopt
3729 ;;
3730 darwin)
3731 enabled ppc && add_asflags -force_cpusubtype_ALL
3732 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3733 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3734 add_ldflags -Wl,-dynamic,-search_paths_first
3735 SLIBSUF=".dylib"
3736 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3737 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3738 objformat="macho"
3739 enabled x86_64 && objformat="macho64"
3740 enabled_any pic shared ||
3741 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3742 ;;
3743 msys*)
3744 die "Native MSYS builds are discouraged, please use the MINGW environment.";
3745 ;;
3746 mingw32*|mingw64*)
3747 if test $target_os = "mingw32ce"; then
3748 disable network
3749 else
3750 target_os=mingw32
3751 fi
3752 LIBTARGET=i386
3753 if enabled x86_64; then
3754 LIBTARGET="i386:x86-64"
3755 elif enabled arm; then
3756 LIBTARGET=arm-wince
3757 fi
3758 check_ldflags -Wl,--nxcompat
3759 check_ldflags -Wl,--dynamicbase
3760 shlibdir_default="$bindir_default"
3761 SLIBPREF=""
3762 SLIBSUF=".dll"
3763 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3764 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3765 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3766 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3767 SLIB_INSTALL_LINKS=
3768 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3769 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3770 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3771 objformat="win32"
3772 dlltool="${cross_prefix}dlltool"
3773 ranlib=:
3774 enable dos_paths
3775 ;;
3776 win32|win64)
3777 disable symver
3778 if enabled shared; then
3779 # Link to the import library instead of the normal static library
3780 # for shared libs.
3781 LD_LIB='%.lib'
3782 # Cannot build both shared and static libs with MSVC or icl.
3783 disable static
3784 fi
3785 shlibdir_default="$bindir_default"
3786 SLIBPREF=""
3787 SLIBSUF=".dll"
3788 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3789 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3790 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3791 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3792 SLIB_INSTALL_LINKS=
3793 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3794 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3795 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3796 objformat="win32"
3797 ranlib=:
3798 enable dos_paths
3799 ;;
3800 cygwin*)
3801 target_os=cygwin
3802 shlibdir_default="$bindir_default"
3803 SLIBPREF="cyg"
3804 SLIBSUF=".dll"
3805 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3806 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3807 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3808 SLIB_INSTALL_LINKS=
3809 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3810 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3811 objformat="win32"
3812 enable dos_paths
3813 ;;
3814 *-dos|freedos|opendos)
3815 network_extralibs="-lsocket"
3816 objformat="coff"
3817 enable dos_paths
3818 add_cppflags -U__STRICT_ANSI__
3819 ;;
3820 linux)
3821 enable dv1394
3822 enable section_data_rel_ro
3823 ;;
3824 irix*)
3825 target_os=irix
3826 ranlib="echo ignoring ranlib"
3827 ;;
3828 os/2*)
3829 ln_s="cp -f"
3830 objformat="aout"
3831 add_cppflags -D_GNU_SOURCE
3832 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3833 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3834 LIBSUF="_s.a"
3835 SLIBPREF=""
3836 SLIBSUF=".dll"
3837 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3838 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3839 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3840 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3841 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3842 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3843 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3844 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3845 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3846 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3847 enable dos_paths
3848 ;;
3849 gnu/kfreebsd)
3850 add_cppflags -D_BSD_SOURCE
3851 ;;
3852 gnu)
3853 ;;
3854 qnx)
3855 add_cppflags -D_QNX_SOURCE
3856 network_extralibs="-lsocket"
3857 ;;
3858 symbian)
3859 SLIBSUF=".dll"
3860 enable dos_paths
3861 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3862 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3863 add_ldflags -Wl,--target1-abs,--no-undefined \
3864 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3865 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3866 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3867 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3868 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3869 ;;
3870 osf1)
3871 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3872 ;;
3873 minix)
3874 ;;
3875 plan9)
3876 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3877 -D_REENTRANT_SOURCE \
3878 -D_RESEARCH_SOURCE \
3879 -DFD_SETSIZE=96 \
3880 -DHAVE_SOCK_OPTS
3881 add_compat strtod.o strtod=avpriv_strtod
3882 network_extralibs='-lbsd'
3883 exeobjs=compat/plan9/main.o
3884 cp_f='cp'
3885 ;;
3886 none)
3887 ;;
3888 *)
3889 die "Unknown OS '$target_os'."
3890 ;;
3891esac
3892
3893# determine libc flavour
3894
3895probe_libc(){
3896 pfx=$1
3897 pfx_no_=${pfx%_}
3898 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3899 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3900 eval ${pfx}libc_type=uclibc
3901 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3902 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3903 eval ${pfx}libc_type=glibc
3904 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3905 # MinGW headers can be installed on Cygwin, so check for newlib first.
3906 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3907 eval ${pfx}libc_type=newlib
3908 add_${pfx}cppflags -U__STRICT_ANSI__
3909 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3910 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3911 eval ${pfx}libc_type=mingw64
3912 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3913 eval test \$${pfx_no_}cc_type = "gcc" &&
3914 add_${pfx}cppflags -D__printf__=__gnu_printf__
3915 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3916 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3917 eval ${pfx}libc_type=mingw32
3918 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3919 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3920 die "ERROR: MinGW32 runtime version must be >= 3.15."
3921 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3922 eval test \$${pfx_no_}cc_type = "gcc" &&
3923 add_${pfx}cppflags -D__printf__=__gnu_printf__
3924 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3925 eval ${pfx}libc_type=msvcrt
3926 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3927 if [ "$pfx" = host_ ]; then
3928 add_host_cppflags -Dsnprintf=_snprintf
3929 else
3930 add_compat strtod.o strtod=avpriv_strtod
3931 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3932 _snprintf=avpriv_snprintf \
3933 vsnprintf=avpriv_vsnprintf
3934 fi
3935 fi
3936 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3937 # 0x601 by default unless something else is set by the user.
3938 # This can easily lead to us detecting functions only present
3939 # in such new versions and producing binaries requiring windows 7.0.
3940 # Therefore explicitly set the default to XP unless the user has
3941 # set something else on the command line.
3942 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3943 # family. For these cases, configure is free to use any functions
3944 # found in the SDK headers by default. (Alternatively, we could force
3945 # _WIN32_WINNT to 0x0602 in that case.)
3946 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3947 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3948#ifdef WINAPI_FAMILY
3949#include <winapifamily.h>
3950#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3951#error not desktop
3952#endif
3953#endif
3954EOF
3955 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3956 eval ${pfx}libc_type=klibc
3957 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3958 eval ${pfx}libc_type=bionic
3959 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3960 eval ${pfx}libc_type=solaris
3961 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3962 else
3963 eval ${pfx}libc_type=default
3964 add_${pfx}cppflags -D_DEFAULT_SOURCE
3965 fi
3966}
3967
3968probe_libc
3969test -n "$libc_type" && enable libc_$libc_type
3970probe_libc host_
3971test -n "$host_libc_type" && enable host_libc_$host_libc_type
3972
3973case $libc_type in
3974 bionic)
3975 add_compat strtod.o strtod=avpriv_strtod
3976 ;;
3977esac
3978
3979# hacks for compiler/libc/os combinations
3980
3981if enabled_all tms470 libc_glibc; then
3982 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3983 add_cppflags -D__USER_LABEL_PREFIX__=
3984 add_cppflags -D__builtin_memset=memset
3985 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3986 add_cflags -pds=48 # incompatible redefinition of macro
3987fi
3988
3989if enabled_all ccc libc_glibc; then
3990 add_ldflags -Wl,-z,now # calls to libots crash without this
3991fi
3992
3993check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3994 add_cppflags '-I\$(SRC_PATH)/compat/float'
3995
3996esc(){
3997 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3998}
3999
4000echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4001
4002check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4003
4004set_default $PATHS_LIST
4005set_default nm
4006
4007# we need to build at least one lib type
4008if ! enabled_any static shared; then
4009 cat <<EOF
4010At least one library type must be built.
4011Specify --enable-static to build the static libraries or --enable-shared to
4012build the shared libraries as well. To only build the shared libraries specify
4013--disable-static in addition to --enable-shared.
4014EOF
4015 exit 1;
4016fi
4017
4018die_license_disabled() {
4019 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4020}
4021
4022die_license_disabled gpl libcdio
4023die_license_disabled gpl libx264
4024die_license_disabled gpl libx265
4025die_license_disabled gpl libxavs
4026die_license_disabled gpl libxvid
4027die_license_disabled gpl x11grab
4028
4029die_license_disabled nonfree cuda
4030die_license_disabled nonfree libfaac
4031die_license_disabled nonfree libfdk_aac
4032die_license_disabled nonfree libnpp
4033die_license_disabled nonfree nvenc
4034die_license_disabled nonfree openssl
4035
4036die_license_disabled version3 libopencore_amrnb
4037die_license_disabled version3 libopencore_amrwb
4038die_license_disabled version3 libvo_aacenc
4039die_license_disabled version3 libvo_amrwbenc
4040
4041enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4042
4043disabled optimizations || check_cflags -fomit-frame-pointer
4044
4045enable_weak_pic() {
4046 disabled pic && return
4047 enable pic
4048 add_cppflags -DPIC
4049 case "$target_os" in
4050 mingw*|cygwin*)
4051 ;;
4052 *)
4053 add_cflags -fPIC
4054 ;;
4055 esac
4056 add_asflags -fPIC
4057}
4058
4059enabled pic && enable_weak_pic
4060
4061check_cc <<EOF || die "Symbol mangling check failed."
4062int ff_extern;
4063EOF
4064sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4065extern_prefix=${sym%%ff_extern*}
4066
4067check_cc <<EOF && enable_weak inline_asm
4068void foo(void) { __asm__ volatile ("" ::); }
4069EOF
4070
4071_restrict=
4072for restrict_keyword in restrict __restrict__ __restrict; do
4073 check_cc <<EOF && _restrict=$restrict_keyword && break
4074void foo(char * $restrict_keyword p);
4075EOF
4076done
4077
4078check_cc <<EOF && enable pragma_deprecated
4079void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4080EOF
4081
4082check_cc <<EOF && enable attribute_packed
4083struct { int x; } __attribute__((packed)) x;
4084EOF
4085
4086check_cc <<EOF && enable attribute_may_alias
4087union { int x; } __attribute__((may_alias)) x;
4088EOF
4089
4090check_cc <<EOF || die "endian test failed"
4091unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4092EOF
4093od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4094
4095check_gas() {
4096 log "check_gas using '$as' as AS"
4097 # :vararg is used on aarch64, arm and ppc altivec
4098 check_as <<EOF || return 1
4099.macro m n, y:vararg=0
4100\n: .int \y
4101.endm
4102m x
4103EOF
4104 # .altmacro is only used in arm asm
4105 ! enabled arm || check_as <<EOF || return 1
4106.altmacro
4107EOF
4108 enable gnu_as
4109 return 0
4110}
4111
4112if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4113 nogas=:
4114 enabled_any arm aarch64 && nogas=die
4115 enabled_all ppc altivec && nogas=warn
4116 as_noop=-v
4117
4118 case $as_type in
4119 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4120 gcc) gaspp_as_type=gas ;;
4121 *) gaspp_as_type=$as_type ;;
4122 esac
4123
4124 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4125
4126 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4127 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4128
4129 if ! check_gas ; then
4130 as=${gas:=$as}
4131 check_gas || \
4132 $nogas "GNU assembler not found, install/update gas-preprocessor"
4133 fi
4134
4135 check_as <<EOF && enable as_func
4136.func test
4137.endfunc
4138EOF
4139fi
4140
4141check_inline_asm inline_asm_labels '"1:\n"'
4142
4143if enabled aarch64; then
4144 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4145 # internal assembler in clang 3.3 does not support this instruction
4146 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4147 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4148
4149 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4150
4151elif enabled alpha; then
4152
4153 check_cflags -mieee
4154
4155elif enabled arm; then
4156
4157 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4158 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4159 enabled thumb && check_cflags -mthumb || check_cflags -marm
4160
4161 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4162 enable vfp_args
4163 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4164 enable vfp_args
4165 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4166 case "${cross_prefix:-$cc}" in
4167 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4168 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4169__asm__ (".eabi_attribute 28, 1");
4170int main(void) { return 0; }
4171EOF
4172 esac
4173 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4174 fi
4175
4176 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4177 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4178 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4179 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4180 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4181 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4182
4183 [ $target_os = linux ] || [ $target_os = android ] ||
4184 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4185 $ARCH_EXT_LIST_ARM
4186
4187 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4188
4189 check_as <<EOF && enable as_dn_directive
4190ra .dn d0.i16
4191.unreq ra
4192EOF
4193
4194 # llvm's integrated assembler supports .object_arch from llvm 3.5
4195 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4196.object_arch armv4
4197EOF
4198
4199 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4200
4201elif enabled mips; then
4202
4203 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4204
4205 # make sure that only an instruction set is enabled
4206 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4207
4208 if enabled mips64; then
4209 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4210 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4211 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4212 else
4213 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4214 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4215 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4216 fi
4217
4218elif enabled parisc; then
4219
4220 if enabled gcc; then
4221 case $($cc -dumpversion) in
4222 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4223 esac
4224 fi
4225
4226elif enabled ppc; then
4227
4228 enable local_aligned_8 local_aligned_16
4229
4230 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4231 check_inline_asm ibm_asm '"add 0, 0, 0"'
4232 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4233 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4234
4235 # AltiVec flags: The FSF version of GCC differs from the Apple version
4236 if enabled altivec; then
4237 check_cflags -maltivec -mabi=altivec &&
4238 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4239 check_cflags -faltivec
4240
4241 # check if our compiler supports Motorola AltiVec C API
4242 check_cc <<EOF || disable altivec
4243$inc_altivec_h
4244int main(void) {
4245 vector signed int v1 = (vector signed int) { 0 };
4246 vector signed int v2 = (vector signed int) { 1 };
4247 v1 = vec_add(v1, v2);
4248 return 0;
4249}
4250EOF
4251
4252 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4253 fi
4254
4255 if enabled vsx; then
4256 check_cflags -mvsx &&
4257 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4258 fi
4259
4260 if enabled power8; then
4261 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4262 fi
4263
4264elif enabled x86; then
4265
4266 check_builtin rdtsc intrin.h "__rdtsc()"
4267 check_builtin mm_empty mmintrin.h "_mm_empty()"
4268
4269 enable local_aligned_8 local_aligned_16
4270
4271 # check whether EBP is available on x86
4272 # As 'i' is stored on the stack, this program will crash
4273 # if the base pointer is used to access it because the
4274 # base pointer is cleared in the inline assembly code.
4275 check_exec_crash <<EOF && enable ebp_available
4276volatile int i=0;
4277__asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4278return i;
4279EOF
4280
4281 # check whether EBX is available on x86
4282 check_inline_asm ebx_available '""::"b"(0)' &&
4283 check_inline_asm ebx_available '"":::"%ebx"'
4284
4285 # check whether xmm clobbers are supported
4286 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4287
4288 # check whether binutils is new enough to compile SSSE3/MMXEXT
4289 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4290 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4291
4292 if ! disabled_any asm mmx yasm; then
4293 if check_cmd $yasmexe --version; then
4294 enabled x86_64 && yasm_extra="-m amd64"
4295 yasm_debug="-g dwarf2"
4296 elif check_cmd nasm -v; then
4297 yasmexe=nasm
4298 yasm_debug="-g -F dwarf"
4299 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4300 fi
4301
4302 YASMFLAGS="-f $objformat $yasm_extra"
4303 enabled pic && append YASMFLAGS "-DPIC"
4304 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4305 case "$objformat" in
4306 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4307 esac
4308
4309 check_yasm "movbe ecx, [5]" && enable yasm ||
4310 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4311 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4312 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4313 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4314 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4315 check_yasm "CPU amdnop" || disable cpunop
4316 fi
4317
4318 case "$cpu" in
4319 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4320 disable fast_clz
4321 ;;
4322 esac
4323
4324fi
4325
4326check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4327
4328check_ldflags -Wl,--as-needed
4329
4330if check_func dlopen; then
4331 ldl=
4332elif check_func dlopen -ldl; then
4333 ldl=-ldl
4334fi
4335
4336if ! disabled network; then
4337 check_func getaddrinfo $network_extralibs
4338 check_func inet_aton $network_extralibs
4339
4340 check_type netdb.h "struct addrinfo"
4341 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4342 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4343 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4344 check_type poll.h "struct pollfd"
4345 check_type netinet/sctp.h "struct sctp_event_subscribe"
4346 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4347 check_type netinet/in.h "struct sockaddr_in6"
4348 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4349 check_type "sys/types.h sys/socket.h" socklen_t
4350
4351 # Prefer arpa/inet.h over winsock2
4352 if check_header arpa/inet.h ; then
4353 check_func closesocket
4354 elif check_header winsock2.h ; then
4355 check_func_headers winsock2.h closesocket -lws2 &&
4356 network_extralibs="-lws2" ||
4357 { check_func_headers winsock2.h closesocket -lws2_32 &&
4358 network_extralibs="-lws2_32"; } || disable winsock2_h network
4359 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4360
4361 check_type ws2tcpip.h socklen_t
4362 check_type ws2tcpip.h "struct addrinfo"
4363 check_type ws2tcpip.h "struct group_source_req"
4364 check_type ws2tcpip.h "struct ip_mreq_source"
4365 check_type ws2tcpip.h "struct ipv6_mreq"
4366 check_type winsock2.h "struct pollfd"
4367 check_struct winsock2.h "struct sockaddr" sa_len
4368 check_type ws2tcpip.h "struct sockaddr_in6"
4369 check_type ws2tcpip.h "struct sockaddr_storage"
4370 else
4371 disable network
4372 fi
4373fi
4374
4375check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4376check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4377check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4378check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4379
4380case "$custom_allocator" in
4381 jemalloc)
4382 # jemalloc by default does not use a prefix
4383 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4384 ;;
4385 tcmalloc)
4386 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4387 malloc_prefix=tc_
4388 ;;
4389esac
4390
4391check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4392check_func ${malloc_prefix}memalign && enable memalign
4393check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4394
4395check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4396 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4397
4398check_func fcntl
4399check_func fork
4400check_func gethrtime
4401check_func getopt
4402check_func getrusage
4403check_func gettimeofday
4404check_func gmtime_r
4405check_func isatty
4406check_func localtime_r
4407check_func mach_absolute_time
4408check_func mkstemp
4409check_func mmap
4410check_func mprotect
4411# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4412check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4413check_func sched_getaffinity
4414check_func setrlimit
4415check_func strerror_r
4416check_func sysconf
4417check_func sysctl
4418check_func usleep
4419
4420check_func_headers io.h setmode
4421check_func_headers stdlib.h getenv
4422
4423check_func_headers windows.h CoTaskMemFree -lole32
4424check_func_headers windows.h GetProcessAffinityMask
4425check_func_headers windows.h GetProcessTimes
4426check_func_headers windows.h GetSystemTimeAsFileTime
4427check_func_headers windows.h LoadLibrary
4428check_func_headers windows.h MapViewOfFile
4429check_func_headers windows.h SetConsoleTextAttribute
4430check_func_headers windows.h Sleep
4431check_func_headers windows.h VirtualAlloc
4432check_struct windows.h "CONDITION_VARIABLE" Ptr
4433
4434check_header direct.h
4435check_header dlfcn.h
4436check_header d3d11.h
4437check_header dxva.h
4438check_header dxva2api.h
4439check_header io.h
4440check_header mach/mach_time.h
4441check_header malloc.h
4442check_header poll.h
4443check_header sys/mman.h
4444check_header sys/param.h
4445check_header sys/resource.h
4446check_header sys/select.h
4447check_header sys/time.h
4448check_header sys/un.h
4449check_header unistd.h
4450check_header valgrind/valgrind.h
4451check_header vdpau/vdpau.h
4452check_header vdpau/vdpau_x11.h
4453check_header VideoDecodeAcceleration/VDADecoder.h
4454check_header windows.h
4455check_header X11/extensions/XvMClib.h
4456
4457check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4458check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4459check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4460
4461check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4462
4463check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4464check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4465check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4466
4467check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4468
4469check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4470
4471if ! disabled w32threads && ! enabled pthreads; then
4472 check_func_headers "windows.h process.h" _beginthreadex &&
4473 enable w32threads || disable w32threads
4474fi
4475
4476# check for some common methods of building with pthread support
4477# do this before the optional library checks as some of them require pthreads
4478if ! disabled pthreads && ! enabled w32threads; then
4479 enable pthreads
4480 if check_func pthread_join -pthread; then
4481 add_cflags -pthread
4482 add_extralibs -pthread
4483 elif check_func pthread_join -pthreads; then
4484 add_cflags -pthreads
4485 add_extralibs -pthreads
4486 elif check_func pthread_join -lpthreadGC2; then
4487 add_extralibs -lpthreadGC2
4488 elif check_lib pthread.h pthread_join -lpthread; then
4489 :
4490 elif ! check_func pthread_join; then
4491 disable pthreads
4492 fi
4493fi
4494
4495disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4496disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4497
4498check_lib math.h sin -lm && LIBM="-lm"
4499enabled vaapi && require vaapi va/va.h vaInitialize -lva
4500
4501atan2f_args=2
4502ldexpf_args=2
4503powf_args=2
4504
4505for func in $MATH_FUNCS; do
4506 eval check_mathfunc $func \${${func}_args:-1}
4507done
4508
4509# these are off by default, so fail if requested and not available
4510enabled avisynth && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4511 check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4512 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4513enabled cuda && check_lib cuda.h cuInit -lcuda
4514enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4515enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4516enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4517enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4518enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4519enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4520enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4521enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4522enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4523 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4524 done || die "ERROR: libgsm not found"; }
4525enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4526enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4527enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4528enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4529enabled libnpp && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4530enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4531enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4532enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4533enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4534enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4535 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4536enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4537enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4538enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4539enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4540enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4541enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4542enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4543enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4544enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4545enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4546enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4547enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4548 enabled libvpx_vp8_decoder && {
4549 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4550 disable libvpx_vp8_decoder;
4551 }
4552 enabled libvpx_vp8_encoder && {
4553 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4554 disable libvpx_vp8_encoder;
4555 }
4556 enabled libvpx_vp9_decoder && {
4557 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4558 disable libvpx_vp9_decoder;
4559 }
4560 enabled libvpx_vp9_encoder && {
4561 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4562 disable libvpx_vp9_encoder;
4563 }
4564 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4565 die "libvpx enabled but no supported decoders found"
4566 fi
4567}
4568enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4569enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4570enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4571 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4572 die "ERROR: libx264 version must be >= 0.118."; } &&
4573 { check_cpp_condition x264.h "X264_MPEG2" &&
4574 enable libx262; }
4575enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4576 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4577 die "ERROR: libx265 version must be >= 57."; }
4578enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4579enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4580enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4581 { ! enabled cross_compile && {
4582 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4583 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4584 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4585 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4586 die "ERROR: mmal not found"; }
4587enabled openssl && { check_pkg_config openssl openssl/ssl.h SSL_library_init && {
4588 add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
4589 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4590 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4591 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4592 die "ERROR: openssl not found"; }
4593
4594if enabled gnutls; then
4595 { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4596 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4597fi
4598
4599# libdc1394 check
4600if enabled libdc1394; then
4601 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4602 enable libdc1394_2; } ||
4603 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4604 enable libdc1394_1; } ||
4605 die "ERROR: No version of libdc1394 found "
4606fi
4607
4608if enabled nvenc; then
4609 enabled cuda || check_header cuda.h || die "ERROR: cuda.h not found.";
4610 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found.";
4611 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4612 die "ERROR: NVENC API version 4 or older is not supported";
4613fi
4614
4615if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4616 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4617 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4618 enable sdl
4619fi
4620
4621pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4622texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4623
4624check_header linux/fb.h
4625check_header linux/videodev2.h
4626check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4627
4628check_header AVFoundation/AVFoundation.h &&
4629 check_objcflags -fobjc-arc &&
4630 add_extralibs -framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia ||
4631 disable AVFoundation_AVFoundation_h
4632
4633check_header sys/videoio.h
4634
4635check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4636# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4637# w32api 3.12 had it defined wrong
4638check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4639
4640# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4641{ check_header dev/bktr/ioctl_meteor.h &&
4642 check_header dev/bktr/ioctl_bt848.h; } ||
4643{ check_header machine/ioctl_meteor.h &&
4644 check_header machine/ioctl_bt848.h; } ||
4645{ check_header dev/video/meteor/ioctl_meteor.h &&
4646 check_header dev/video/bktr/ioctl_bt848.h; } ||
4647check_header dev/ic/bt8xx.h
4648
4649check_header sndio.h
4650check_header sys/soundcard.h
4651check_header soundcard.h
4652
4653enabled_any alsa_indev alsa_outdev &&
4654 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4655
4656enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4657 check_func jack_port_get_latency_range -ljack
4658
4659enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4660
4661if enabled libcdio; then
4662 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4663 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4664 die "ERROR: No usable libcdio/cdparanoia found"
4665fi
4666
4667check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4668
4669if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4670 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4671 enabled libxcb && die "ERROR: libxcb not found";
4672 } && disable x11grab && enable libxcb
4673
4674 disabled libxcb_shm ||
4675 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4676 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4677 } && check_header sys/shm.h && enable libxcb_shm
4678
4679 disabled libxcb_xfixes ||
4680 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4681 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4682 } && enable libxcb_xfixes
4683
4684 add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4685 add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4686fi
4687
4688if enabled x11grab; then
4689 enabled xlib || die "ERROR: Xlib not found"
4690 require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4691 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4692fi
4693
4694enabled vaapi &&
4695 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4696 disable vaapi
4697
4698if enabled vaapi ; then
4699 enabled xlib &&
4700 check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4701 enable vaapi_x11
4702
4703 check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
4704 enable vaapi_drm
4705fi
4706
4707enabled vdpau &&
4708 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4709 disable vdpau
4710
4711enabled vdpau && enabled xlib &&
4712 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4713 prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4714 enable vdpau_x11
4715
4716enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4717
4718# add some useful compiler flags if supported
4719check_cflags -Wdeclaration-after-statement
4720check_cflags -Wall
4721check_cflags -Wdisabled-optimization
4722check_cflags -Wpointer-arith
4723check_cflags -Wredundant-decls
4724check_cflags -Wwrite-strings
4725check_cflags -Wtype-limits
4726check_cflags -Wundef
4727check_cflags -Wmissing-prototypes
4728check_cflags -Wstrict-prototypes
4729enabled extra_warnings && check_cflags -Winline
4730enabled extra_warnings && check_cflags -Wcast-qual
4731
4732check_disable_warning(){
4733 warning_flag=-W${1#-Wno-}
4734 test_cflags $warning_flag && add_cflags $1
4735}
4736
4737check_disable_warning -Wno-parentheses
4738check_disable_warning -Wno-switch
4739check_disable_warning -Wno-format-zero-length
4740check_disable_warning -Wno-pointer-sign
4741
4742# add some linker flags
4743check_ldflags -Wl,--warn-common
4744check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4745enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4746test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4747
4748# add some strip flags
4749# -wN '..@*' is more selective than -x, but not available everywhere.
4750check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4751
4752enabled neon_clobber_test &&
4753 check_ldflags -Wl,--wrap,avcodec_open2 \
4754 -Wl,--wrap,avcodec_decode_audio4 \
4755 -Wl,--wrap,avcodec_decode_video2 \
4756 -Wl,--wrap,avcodec_decode_subtitle2 \
4757 -Wl,--wrap,avcodec_encode_audio2 \
4758 -Wl,--wrap,avcodec_encode_video2 \
4759 -Wl,--wrap,avcodec_encode_subtitle \
4760 -Wl,--wrap,avresample_convert ||
4761 disable neon_clobber_test
4762
4763enabled xmm_clobber_test &&
4764 check_ldflags -Wl,--wrap,avcodec_open2 \
4765 -Wl,--wrap,avcodec_decode_audio4 \
4766 -Wl,--wrap,avcodec_decode_video2 \
4767 -Wl,--wrap,avcodec_decode_subtitle2 \
4768 -Wl,--wrap,avcodec_encode_audio2 \
4769 -Wl,--wrap,avcodec_encode_video2 \
4770 -Wl,--wrap,avcodec_encode_subtitle \
4771 -Wl,--wrap,avresample_convert \
4772 -Wl,--wrap,sws_scale ||
4773 disable xmm_clobber_test
4774
4775echo "X { local: *; };" > $TMPV
4776if test_ldflags -Wl,--version-script,$TMPV; then
4777 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4778elif test_ldflags -Wl,-M,$TMPV; then
4779 append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
4780fi
4781
4782check_cc <<EOF && enable symver_asm_label
4783void ff_foo(void) __asm__ ("av_foo@VERSION");
4784void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4785EOF
4786 check_cc <<EOF && enable symver_gnu_asm
4787__asm__(".symver ff_foo,av_foo@VERSION");
4788void ff_foo(void) {}
4789EOF
4790
4791if [ -z "$optflags" ]; then
4792 if enabled small; then
4793 optflags=$cflags_size
4794 elif enabled optimizations; then
4795 optflags=$cflags_speed
4796 else
4797 optflags=$cflags_noopt
4798 fi
4799fi
4800
4801check_optflags(){
4802 check_cflags "$@"
4803 enabled lto && check_ldflags "$@"
4804}
4805
4806
4807if enabled lto; then
4808 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4809 check_cflags -flto
4810 check_ldflags -flto $cpuflags
4811fi
4812
4813check_optflags $optflags
4814check_optflags -fno-math-errno
4815check_optflags -fno-signed-zeros
4816
4817if enabled icc; then
4818 # Just warnings, no remarks
4819 check_cflags -w1
4820 # -wd: Disable following warnings
4821 # 144, 167, 556: -Wno-pointer-sign
4822 # 1292: attribute "foo" ignored
4823 # 1419: external declaration in primary source file
4824 # 10006: ignoring unknown option -fno-signed-zeros
4825 # 10148: ignoring unknown option -Wno-parentheses
4826 # 10156: ignoring option '-W'; no argument required
4827 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4828 # 11030: Warning unknown option --as-needed
4829 # 10156: ignoring option '-export'; no argument required
4830 check_ldflags -wd10156,11030
4831 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4832 enable ebp_available
4833 if enabled x86_32; then
4834 icc_version=$($cc -dumpversion)
4835 test ${icc_version%%.*} -ge 11 &&
4836 check_cflags -falign-stack=maintain-16-byte ||
4837 disable aligned_stack
4838 fi
4839elif enabled ccc; then
4840 # disable some annoying warnings
4841 add_cflags -msg_disable bitnotint
4842 add_cflags -msg_disable mixfuncvoid
4843 add_cflags -msg_disable nonstandcast
4844 add_cflags -msg_disable unsupieee
4845elif enabled gcc; then
4846 check_optflags -fno-tree-vectorize
4847 check_cflags -Werror=implicit-function-declaration
4848 check_cflags -Werror=missing-prototypes
4849 check_cflags -Werror=return-type
4850 check_cflags -Werror=declaration-after-statement
4851 check_cflags -Werror=vla
4852 check_cflags -Werror=format-security
4853 check_cflags -fdiagnostics-color=auto
4854 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4855elif enabled llvm_gcc; then
4856 check_cflags -mllvm -stack-alignment=16
4857elif enabled clang; then
4858 check_cflags -mllvm -stack-alignment=16
4859 check_cflags -Qunused-arguments
4860 check_cflags -Werror=implicit-function-declaration
4861 check_cflags -Werror=missing-prototypes
4862 check_cflags -Werror=return-type
4863elif enabled cparser; then
4864 add_cflags -Wno-missing-variable-declarations
4865 add_cflags -Wno-empty-statement
4866elif enabled armcc; then
4867 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4868 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4869 # 2523: use of inline assembly is deprecated
4870 add_cflags -W${armcc_opt},--diag_suppress=2523
4871 add_cflags -W${armcc_opt},--diag_suppress=1207
4872 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4873 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4874 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4875 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4876elif enabled tms470; then
4877 add_cflags -pds=824 -pds=837
4878 disable inline_asm
4879elif enabled pathscale; then
4880 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4881elif enabled_any msvc icl; then
4882 enabled x86_32 && disable aligned_stack
4883 enabled_all x86_32 debug && add_cflags -Oy-
4884 enabled debug && add_ldflags -debug
4885 enable pragma_deprecated
4886 if enabled icl; then
4887 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4888 # (correctly) on icl 13.x.
4889 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4890 add_cflags -Qansi-alias
4891 # icl will pass the inline asm tests but inline asm is currently
4892 # not supported (build will fail)
4893 disable inline_asm
4894 fi
4895 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4896 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4897 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
4898 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
4899 # (as it ends up if the restrict redefine is done before including stdlib.h), while
4900 # MSVC 2013 and newer can handle it fine.
4901 # If this declspec fails, force including stdlib.h before the restrict redefinition
4902 # happens in config.h.
4903 if [ $_restrict != restrict ]; then
4904 check_cc <<EOF || add_cflags -FIstdlib.h
4905__declspec($_restrict) void* foo(int);
4906EOF
4907 fi
4908 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4909fi
4910
4911for pfx in "" host_; do
4912 varname=${pfx%_}cc_type
4913 eval "type=\$$varname"
4914 if [ $type = "msvc" ]; then
4915 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
4916static inline int foo(int a) { return a; }
4917EOF
4918 fi
4919done
4920
4921case $as_type in
4922 clang)
4923 add_asflags -Qunused-arguments
4924 ;;
4925esac
4926
4927case $ld_type in
4928 clang)
4929 check_ldflags -Qunused-arguments
4930 ;;
4931esac
4932
4933case $target_os in
4934 osf1)
4935 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4936 ;;
4937 plan9)
4938 add_cppflags -Dmain=plan9_main
4939 ;;
4940esac
4941
4942enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4943
4944check_deps $CONFIG_LIST \
4945 $CONFIG_EXTRA \
4946 $HAVE_LIST \
4947 $ALL_COMPONENTS \
4948
4949enabled_all dxva2 CoTaskMemFree &&
4950 prepend avconv_libs $($ldflags_filter "-lole32") &&
4951 enable dxva2_lib
4952
4953! enabled_any memalign posix_memalign aligned_malloc &&
4954 enabled simd_align_16 && enable memalign_hack
4955
4956map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4957
4958for thread in $THREADS_LIST; do
4959 if enabled $thread; then
4960 test -n "$thread_type" &&
4961 die "ERROR: Only one thread type must be selected." ||
4962 thread_type="$thread"
4963 fi
4964done
4965
4966enabled zlib && add_cppflags -DZLIB_CONST
4967
4968# conditional library dependencies, in linking order
4969enabled movie_filter && prepend avfilter_deps "avformat avcodec"
4970enabled resample_filter && prepend avfilter_deps "avresample"
4971enabled scale_filter && prepend avfilter_deps "swscale"
4972
4973enabled opus_decoder && prepend avcodec_deps "avresample"
4974
4975expand_deps(){
4976 lib_deps=${1}_deps
4977 eval "deps=\$$lib_deps"
4978 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4979 unique $lib_deps
4980}
4981
4982map 'expand_deps $v' $LIBRARY_LIST
4983
4984echo "install prefix $prefix"
4985echo "source path $source_path"
4986echo "C compiler $cc"
4987echo "C library $libc_type"
4988if test "$host_cc" != "$cc"; then
4989 echo "host C compiler $host_cc"
4990 echo "host C library $host_libc_type"
4991fi
4992echo "ARCH $arch ($cpu)"
4993if test "$build_suffix" != ""; then
4994 echo "build suffix $build_suffix"
4995fi
4996if test "$extra_version" != ""; then
4997 echo "version string suffix $extra_version"
4998fi
4999echo "big-endian ${bigendian-no}"
5000echo "runtime cpu detection ${runtime_cpudetect-no}"
5001if enabled x86; then
5002 echo "${yasmexe} ${yasm-no}"
5003 echo "MMX enabled ${mmx-no}"
5004 echo "MMXEXT enabled ${mmxext-no}"
5005 echo "3DNow! enabled ${amd3dnow-no}"
5006 echo "3DNow! extended enabled ${amd3dnowext-no}"
5007 echo "SSE enabled ${sse-no}"
5008 echo "SSSE3 enabled ${ssse3-no}"
5009 echo "AVX enabled ${avx-no}"
5010 echo "XOP enabled ${xop-no}"
5011 echo "FMA3 enabled ${fma3-no}"
5012 echo "FMA4 enabled ${fma4-no}"
5013 echo "i686 features enabled ${i686-no}"
5014 echo "CMOV is fast ${fast_cmov-no}"
5015 echo "EBX available ${ebx_available-no}"
5016 echo "EBP available ${ebp_available-no}"
5017fi
5018if enabled aarch64; then
5019 echo "NEON enabled ${neon-no}"
5020 echo "VFP enabled ${vfp-no}"
5021fi
5022if enabled arm; then
5023 echo "ARMv5TE enabled ${armv5te-no}"
5024 echo "ARMv6 enabled ${armv6-no}"
5025 echo "ARMv6T2 enabled ${armv6t2-no}"
5026 echo "VFP enabled ${vfp-no}"
5027 echo "NEON enabled ${neon-no}"
5028fi
5029if enabled ppc; then
5030 echo "AltiVec enabled ${altivec-no}"
5031 echo "VSX enabled ${vsx-no}"
5032 echo "POWER8 enabled ${power8-no}"
5033 echo "PPC 4xx optimizations ${ppc4xx-no}"
5034 echo "dcbzl available ${dcbzl-no}"
5035fi
5036echo "debug symbols ${debug-no}"
5037echo "optimize for size ${small-no}"
5038echo "optimizations ${optimizations-no}"
5039echo "static ${static-no}"
5040echo "shared ${shared-no}"
5041echo "new filter support ${avfilter-no}"
5042echo "network support ${network-no}"
5043echo "threading support ${thread_type-no}"
5044echo "safe bitstream reader ${safe_bitstream_reader-no}"
5045echo "SDL support ${sdl-no}"
5046test -n "$random_seed" &&
5047 echo "random seed ${random_seed}"
5048echo
5049
5050echo "External libraries:"
5051print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5052echo
5053
5054echo "Libraries:"
5055print_enabled '' $LIBRARY_LIST | print_3_columns
5056echo
5057
5058for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5059 echo "Enabled ${type}s:"
5060 eval list=\$$(toupper $type)_LIST
5061 print_enabled '_*' $list | print_3_columns
5062 echo
5063done
5064
5065license="LGPL version 2.1 or later"
5066if enabled nonfree; then
5067 license="nonfree and unredistributable"
5068elif enabled gplv3; then
5069 license="GPL version 3 or later"
5070elif enabled lgplv3; then
5071 license="LGPL version 3 or later"
5072elif enabled gpl; then
5073 license="GPL version 2 or later"
5074fi
5075
5076echo "License: $license"
5077
5078echo "Creating config.mak and config.h..."
5079
5080test -e Makefile || echo "include $source_path/Makefile" > Makefile
5081
5082config_files="$TMPH config.mak"
5083
5084cat > config.mak <<EOF
5085# Automatically generated by configure - do not modify!
5086LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5087prefix=$prefix
5088LIBDIR=\$(DESTDIR)$libdir
5089SHLIBDIR=\$(DESTDIR)$shlibdir
5090INCDIR=\$(DESTDIR)$incdir
5091BINDIR=\$(DESTDIR)$bindir
5092DATADIR=\$(DESTDIR)$datadir
5093DOCDIR=\$(DESTDIR)$docdir
5094MANDIR=\$(DESTDIR)$mandir
5095SRC_PATH=$source_path
5096CC_IDENT=$cc_ident
5097ARCH=$arch
5098INTRINSICS=$intrinsics
5099CC=$cc
5100OBJCC=$cc
5101AS=$as
5102OBJCC=$objcc
5103LD=$ld
5104DEPCC=$dep_cc
5105DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5106DEPAS=$as
5107DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5108YASM=$yasmexe
5109DEPYASM=$yasmexe
5110AR=$ar
5111ARFLAGS=$arflags
5112AR_O=$ar_o
5113RANLIB=$ranlib
5114STRIP=$strip
5115LN_S=$ln_s
5116CPPFLAGS=$CPPFLAGS
5117CFLAGS=$CFLAGS
5118OBJCFLAGS=$OBJCFLAGS
5119ASFLAGS=$ASFLAGS
5120AS_C=$AS_C
5121AS_O=$AS_O
5122OBJCC_C=$OBJCC_C
5123OBJCC_E=$OBJCC_E
5124OBJCC_O=$OBJCC_O
5125CC_C=$CC_C
5126CC_E=$CC_E
5127CC_O=$CC_O
5128LD_O=$LD_O
5129LD_LIB=$LD_LIB
5130LD_PATH=$LD_PATH
5131DLLTOOL=$dlltool
5132LDFLAGS=$LDFLAGS
5133LDEXEFLAGS=$LDEXEFLAGS
5134SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5135STRIPFLAGS=$STRIPFLAGS
5136YASMFLAGS=$YASMFLAGS
5137BUILDSUF=$build_suffix
5138FULLNAME=$FULLNAME
5139LIBPREF=$LIBPREF
5140LIBSUF=$LIBSUF
5141LIBNAME=$LIBNAME
5142SLIBPREF=$SLIBPREF
5143SLIBSUF=$SLIBSUF
5144EXESUF=$EXESUF
5145EXTRA_VERSION=$extra_version
5146CCDEP=$CCDEP
5147CCDEP_FLAGS=$CCDEP_FLAGS
5148ASDEP=$ASDEP
5149ASDEP_FLAGS=$ASDEP_FLAGS
5150CC_DEPFLAGS=$CC_DEPFLAGS
5151AS_DEPFLAGS=$AS_DEPFLAGS
5152HOSTCC=$host_cc
5153HOSTLD=$host_ld
5154HOSTCFLAGS=$host_cflags
5155HOSTCPPFLAGS=$host_cppflags
5156HOSTEXESUF=$HOSTEXESUF
5157HOSTLDFLAGS=$host_ldflags
5158HOSTLIBS=$host_libs
5159DEPHOSTCC=$host_cc
5160DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5161HOSTCCDEP=$HOSTCCDEP
5162HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5163HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5164HOSTCC_C=$HOSTCC_C
5165HOSTCC_O=$HOSTCC_O
5166HOSTLD_O=$HOSTLD_O
5167TARGET_EXEC=$target_exec $target_exec_args
5168TARGET_PATH=$target_path
5169TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5170CFLAGS-avplay=$sdl_cflags
5171ZLIB=$($ldflags_filter -lz)
5172LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5173EXTRALIBS=$extralibs
5174COMPAT_OBJS=$compat_objs
5175EXEOBJS=$exeobjs
5176INSTALL=install
5177LIBTARGET=${LIBTARGET}
5178SLIBNAME=${SLIBNAME}
5179SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5180SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5181SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5182SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5183SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5184SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5185SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5186SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5187SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5188EOF
5189
5190get_version(){
5191 lcname=lib${1}
5192 name=$(toupper $lcname)
5193 file=$source_path/$lcname/version.h
5194 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5195 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5196 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5197 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5198 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5199}
5200
5201map 'get_version $v' $LIBRARY_LIST
5202
5203map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5204
5205print_program_libs(){
5206 eval "program_libs=\$${1}_libs"
5207 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5208}
5209
5210map 'print_program_libs $v' $PROGRAM_LIST
5211
5212cat > $TMPH <<EOF
5213/* Automatically generated by configure - do not modify! */
5214#ifndef LIBAV_CONFIG_H
5215#define LIBAV_CONFIG_H
5216#define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5217#define LIBAV_LICENSE "$(c_escape $license)"
5218#define AVCONV_DATADIR "$(eval c_escape $datadir)"
5219#define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5220#define restrict $_restrict
5221#define EXTERN_PREFIX "${extern_prefix}"
5222#define EXTERN_ASM ${extern_prefix}
5223#define SLIBSUF "$SLIBSUF"
5224EOF
5225
5226test -n "$malloc_prefix" &&
5227 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5228
5229if enabled yasm; then
5230 append config_files $TMPASM
5231 printf '' >$TMPASM
5232fi
5233
5234enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5235
5236print_config ARCH_ "$config_files" $ARCH_LIST
5237print_config HAVE_ "$config_files" $HAVE_LIST
5238print_config CONFIG_ "$config_files" $CONFIG_LIST \
5239 $CONFIG_EXTRA \
5240 $ALL_COMPONENTS \
5241
5242echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5243
5244# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5245cp_if_changed $TMPH config.h
5246touch .config
5247
5248enabled yasm && cp_if_changed $TMPASM config.asm
5249
5250cat > $TMPH <<EOF
5251/* Generated by ffconf */
5252#ifndef AVUTIL_AVCONFIG_H
5253#define AVUTIL_AVCONFIG_H
5254EOF
5255
5256print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5257
5258echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5259
5260cp_if_changed $TMPH libavutil/avconfig.h
5261
5262test -n "$WARNINGS" && printf "\n$WARNINGS"
5263
5264# build pkg-config files
5265
5266lib_version(){
5267 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5268}
5269
5270pkgconfig_generate(){
5271 name=$1
5272 shortname=${name#lib}${build_suffix}
5273 comment=$2
5274 version=$3
5275 libs=$4
5276 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5277 requires=${requires%, }
5278 enabled ${name#lib} || return 0
5279 mkdir -p $name
5280 cat <<EOF > $name/$name.pc
5281prefix=$prefix
5282exec_prefix=\${prefix}
5283libdir=$libdir
5284includedir=$incdir
5285
5286Name: $name
5287Description: $comment
5288Version: $version
5289Requires: $(enabled shared || echo $requires)
5290Requires.private: $(enabled shared && echo $requires)
5291Conflicts:
5292Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5293Libs.private: $(enabled shared && echo $libs)
5294Cflags: -I\${includedir}
5295EOF
5296 cat <<EOF > $name/$name-uninstalled.pc
5297prefix=
5298exec_prefix=
5299libdir=\${pcfiledir}
5300includedir=${source_path}
5301
5302Name: $name
5303Description: $comment
5304Version: $version
5305Requires: $requires
5306Conflicts:
5307Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5308Cflags: -I\${includedir}
5309EOF
5310}
5311
5312pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5313pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5314pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5315pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5316pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5317pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5318pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"