h264_metadata: Add option to delete filler data
[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:$PATH
58
59show_help(){
60 cat <<EOF
61Usage: configure [options]
62Options: [defaults in brackets after descriptions]
63
64Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-filters show all available filters
77
78Standard options:
79 --logfile=FILE log tests and output to FILE [avbuild/config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix_default]
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
113Component options:
114 --disable-doc do not build documentation
115 --disable-pod2man do not build manual pages
116 --disable-texi2html do not build HTML documentation
117 --disable-avdevice disable libavdevice build
118 --disable-avcodec disable libavcodec build
119 --disable-avformat disable libavformat build
120 --disable-avutil disable libavutil build
121 --disable-swscale disable libswscale build
122 --disable-avfilter disable video filter support [no]
123 --disable-avresample disable libavresample build [no]
124 --disable-pthreads disable pthreads [auto]
125 --disable-w32threads disable Win32 threads [auto]
126 --disable-network disable network support [no]
127 --disable-dct disable DCT code
128 --disable-error-resilience disable error resilience code
129 --disable-lsp disable LSP code
130 --disable-lzo disable LZO decoder code
131 --disable-mdct disable MDCT code
132 --disable-rdft disable RDFT code
133 --disable-fft disable FFT code
134 --disable-faan disable floating point AAN (I)DCT code
135
136Individual component options:
137 --disable-everything disable all components listed below
138 --disable-encoder=NAME disable encoder NAME
139 --enable-encoder=NAME enable encoder NAME
140 --disable-encoders disable all encoders
141 --disable-decoder=NAME disable decoder NAME
142 --enable-decoder=NAME enable decoder NAME
143 --disable-decoders disable all decoders
144 --disable-hwaccel=NAME disable hwaccel NAME
145 --enable-hwaccel=NAME enable hwaccel NAME
146 --disable-hwaccels disable all hwaccels
147 --disable-muxer=NAME disable muxer NAME
148 --enable-muxer=NAME enable muxer NAME
149 --disable-muxers disable all muxers
150 --disable-demuxer=NAME disable demuxer NAME
151 --enable-demuxer=NAME enable demuxer NAME
152 --disable-demuxers disable all demuxers
153 --enable-parser=NAME enable parser NAME
154 --disable-parser=NAME disable parser NAME
155 --disable-parsers disable all parsers
156 --enable-bsf=NAME enable bitstream filter NAME
157 --disable-bsf=NAME disable bitstream filter NAME
158 --disable-bsfs disable all bitstream filters
159 --enable-protocol=NAME enable protocol NAME
160 --disable-protocol=NAME disable protocol NAME
161 --disable-protocols disable all protocols
162 --enable-indev=NAME enable input device NAME
163 --disable-indev=NAME disable input device NAME
164 --disable-indevs disable input devices
165 --disable-devices disable all devices
166 --enable-filter=NAME enable filter NAME
167 --disable-filter=NAME disable filter NAME
168 --disable-filters disable all filters
169
170External library support:
171
172 Using any of the following switches will allow Libav to link to the
173 corresponding external library. All the components depending on that library
174 will become enabled, if all their other dependencies are met and they are not
175 explicitly disabled. E.g. --enable-libwavpack will enable linking to
176 libwavpack and allow the libwavpack encoder to be built, unless it is
177 specifically disabled with --disable-encoder=libwavpack.
178
179 Note that only the system libraries are auto-detected. All the other external
180 libraries must be explicitly enabled.
181
182 Also note that the following help text describes the purpose of the libraries
183 themselves, not all their features will necessarily be usable by Libav.
184
185 --enable-avisynth video frameserver
186 --enable-avxsynth Linux version of AviSynth
187 --enable-bzlib bzip2 compression [autodetect]
188 --enable-frei0r video filtering plugins
189 --enable-gnutls crypto
190 --enable-libbs2b Bauer stereophonic-to-binaural DSP
191 --enable-libcdio audio CD input
192 --enable-libdc1394 IEEE 1394/Firewire camera input
193 --enable-libdcadec DCA audio decoding
194 --enable-libfaac AAC audio encoding
195 --enable-libfdk-aac AAC audio encoding/decoding
196 --enable-libfontconfig font configuration and management
197 --enable-libfreetype font rendering
198 --enable-libgsm GSM audio encoding/decoding
199 --enable-libhdcd HDCD decoding filter
200 --enable-libilbc ILBC audio encoding/decoding
201 --enable-libjack JACK audio sound server
202 --enable-libkvazaar HEVC video encoding
203 --enable-libmp3lame MP3 audio encoding
204 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
205 --enable-libopencore-amrwb AMR-WB audio decoding
206 --enable-libopencv computer vision
207 --enable-libopenh264 H.264 video encoding/decoding
208 --enable-libopenjpeg JPEG 2000 image encoding/decoding
209 --enable-libopus Opus audio encoding/decoding
210 --enable-libpulse Pulseaudio sound server
211 --enable-librtmp RTMP streaming
212 --enable-libschroedinger Dirac video encoding/decoding
213 --enable-libsnappy snappy compression
214 --enable-libspeex Speex audio encoding/decoding
215 --enable-libtheora Theora video encoding/decoding
216 --enable-libtwolame MP2 audio encoding
217 --enable-libvo-aacenc AAC audio encoding
218 --enable-libvo-amrwbenc AMR-WB audio encoding
219 --enable-libvorbis Vorbis audio encoding/decoding
220 --enable-libvpx VP* video encoding/decoding
221 --enable-libwavpack Wavpack audio encoding/decoding
222 --enable-libwebp WebP image encoding/decoding
223 --enable-libx264 H.264 video encoding
224 --enable-libx265 HEVC video encoding
225 --enable-libxavs Chinese AVS video encoding
226 --enable-libxcb X window system protocol communication
227 --enable-libxcb-shm X11 shm communication [auto]
228 --enable-libxcb-xfixes X11 mouse rendering [auto]
229 --enable-libxvid MPEG-4 ASP video encoding
230 --enable-openssl crypto
231 --enable-zlib compression [autodetect]
232
233 The following libraries provide various hardware acceleration features:
234 --enable-amf AMF video encoding code [auto]
235 --enable-cuda Nvidia CUDA (dynamically linked)
236 --enable-cuvid Nvidia CUVID video decode acceleration
237 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
238 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
239 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
240 --enable-libnpp Nvidia CUDA processing
241 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
242 --enable-nvenc Nvidia video encoding
243 --enable-omx OpenMAX IL
244 --enable-omx-rpi OpenMAX IL for Raspberry Pi
245 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
246 --enable-vda Apple Video Decode Acceleration [auto]
247 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
248
249Toolchain options:
250 --arch=ARCH select architecture [$arch]
251 --cpu=CPU select the minimum required CPU (affects
252 instruction selection, may crash on older CPUs)
253 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
254 --enable-cross-compile assume a cross-compiler is used
255 --sysroot=PATH root of cross-build tree
256 --sysinclude=PATH location of cross-build system headers
257 --target-os=OS compiler targets OS [$target_os]
258 --target-exec=CMD command to run executables on target
259 --target-path=DIR path to view of build directory on target
260 --target-samples=DIR path to samples directory on target
261 --toolchain=NAME set tool defaults according to NAME
262 --nm=NM use nm tool
263 --ar=AR use archive tool AR [$ar_default]
264 --as=AS use assembler AS [$as_default]
265 --cc=CC use C compiler CC [$cc_default]
266 --objcc=OCC use ObjC compiler OCC [$cc_default]
267 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
268 --ld=LD use linker LD
269 --x86asmexe=X86ASM use x86 assembler X86ASM
270 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
271 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
272 --host-cc=HOSTCC use host C compiler HOSTCC
273 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
274 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
275 --host-ld=HOSTLD use host linker HOSTLD
276 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
277 --host-libs=HLIBS use libs HLIBS when linking for host
278 --host-os=OS compiler host OS [$target_os]
279 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
280 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
281 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
282 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
283 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
284 --extra-libs=ELIBS add ELIBS [$ELIBS]
285 --extra-version=STRING version string suffix []
286 --optflags=OPTFLAGS override optimization-related compiler flags
287 --enable-pic build position-independent code
288 --enable-thumb compile for Thumb instruction set
289 --enable-lto use link-time optimization
290 --env="ENV=override" override the environment variables
291
292Advanced options (experts only):
293 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
294 --custom-allocator=NAME use a supported custom allocator
295 --disable-symver disable symbol versioning
296 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
297 --disable-safe-bitstream-reader
298 disable buffer boundary checking in bitreaders
299 (faster, but may crash)
300 --enable-sram allow use of on-chip SRAM
301
302Optimization options (experts only):
303 --disable-asm disable all assembly optimizations
304 --disable-altivec disable AltiVec optimizations
305 --disable-vsx disable VSX optimizations
306 --disable-power8 disable POWER8 optimizations
307 --disable-amd3dnow disable 3DNow! optimizations
308 --disable-amd3dnowext disable 3DNow! extended optimizations
309 --disable-mmx disable MMX optimizations
310 --disable-mmxext disable MMXEXT optimizations
311 --disable-sse disable SSE optimizations
312 --disable-sse2 disable SSE2 optimizations
313 --disable-sse3 disable SSE3 optimizations
314 --disable-ssse3 disable SSSE3 optimizations
315 --disable-sse4 disable SSE4 optimizations
316 --disable-sse42 disable SSE4.2 optimizations
317 --disable-avx disable AVX optimizations
318 --disable-xop disable XOP optimizations
319 --disable-fma3 disable FMA3 optimizations
320 --disable-fma4 disable FMA4 optimizations
321 --disable-avx2 disable AVX2 optimizations
322 --disable-armv5te disable armv5te optimizations
323 --disable-armv6 disable armv6 optimizations
324 --disable-armv6t2 disable armv6t2 optimizations
325 --disable-vfp disable VFP optimizations
326 --disable-neon disable NEON optimizations
327 --disable-inline-asm disable use of inline assembly
328 --disable-x86asm disable use of standalone x86 assembly
329
330Developer options (useful when working on Libav itself):
331 --disable-debug disable debugging symbols
332 --enable-debug=LEVEL set the debug level [$debuglevel]
333 --disable-optimizations disable compiler optimizations
334 --enable-extra-warnings enable more compiler warnings
335 --samples=PATH location of test samples for FATE, if not set use
336 \$LIBAV_SAMPLES at make invocation time.
337 --enable-neon-clobber-test check NEON registers for clobbering (should be
338 used only for debugging purposes)
339 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
340 should be used only for debugging purposes)
341 --disable-valgrind-backtrace do not print a backtrace under Valgrind
342 (only applies to --disable-optimizations builds)
343 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
344 in the name) of tests whose result is ignored
345
346NOTE: Object files are built at the place where configure is launched.
347EOF
348 exit 0
349}
350
351log(){
352 echo "$@" >> $logfile
353}
354
355log_file(){
356 log BEGIN $1
357 i=1
358 while read line; do
359 printf '%5s %s\n' "${i}" "${line}"
360 i=$(($i+1))
361 done < $1 >> $logfile
362 log END $1
363}
364
365echolog(){
366 log "$@"
367 echo "$@"
368}
369
370warn(){
371 log "WARNING: $*"
372 WARNINGS="${WARNINGS}WARNING: $*\n"
373}
374
375die(){
376 echolog "$@"
377 cat <<EOF
378
379If you think configure made a mistake, make sure you are using the latest
380version from Git. If the latest version fails, report the problem to the
381libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
382EOF
383 if disabled logging; then
384 cat <<EOF
385Rerun configure with logging enabled (do not use --disable-logging), and
386include the log this produces with your report.
387EOF
388 else
389 cat <<EOF
390Include the log file "$logfile" produced by configure as this will help
391solving the problem.
392EOF
393 fi
394 exit 1
395}
396
397# Avoid locale weirdness, besides we really just want to translate ASCII.
398toupper(){
399 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
400}
401
402tolower(){
403 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
404}
405
406c_escape(){
407 echo "$*" | sed 's/["\\]/\\\0/g'
408}
409
410sh_quote(){
411 v=$(echo "$1" | sed "s/'/'\\\\''/g")
412 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
413 echo "$v"
414}
415
416cleanws(){
417 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
418}
419
420filter(){
421 pat=$1
422 shift
423 for v; do
424 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
425 done
426}
427
428filter_out(){
429 pat=$1
430 shift
431 for v; do
432 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
433 done
434}
435
436map(){
437 m=$1
438 shift
439 for v; do eval $m; done
440}
441
442add_suffix(){
443 suffix=$1
444 shift
445 for v; do echo ${v}${suffix}; done
446}
447
448set_all(){
449 value=$1
450 shift
451 for var in $*; do
452 eval $var=$value
453 done
454}
455
456set_weak(){
457 value=$1
458 shift
459 for var; do
460 eval : \${$var:=$value}
461 done
462}
463
464sanitize_var_name(){
465 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
466}
467
468set_sanitized(){
469 var=$1
470 shift
471 eval $(sanitize_var_name "$var")='$*'
472}
473
474get_sanitized(){
475 eval echo \$$(sanitize_var_name "$1")
476}
477
478pushvar(){
479 for pvar in $*; do
480 eval level=\${${pvar}_level:=0}
481 eval ${pvar}_${level}="\$$pvar"
482 eval ${pvar}_level=$(($level+1))
483 done
484}
485
486popvar(){
487 for pvar in $*; do
488 eval level=\${${pvar}_level:-0}
489 test $level = 0 && continue
490 eval level=$(($level-1))
491 eval $pvar="\${${pvar}_${level}}"
492 eval ${pvar}_level=$level
493 eval unset ${pvar}_${level}
494 done
495}
496
497enable(){
498 set_all yes $*
499}
500
501disable(){
502 set_all no $*
503}
504
505enable_weak(){
506 set_weak yes $*
507}
508
509disable_weak(){
510 set_weak no $*
511}
512
513enable_sanitized(){
514 for var; do
515 enable $(sanitize_var_name $var)
516 done
517}
518
519disable_sanitized(){
520 for var; do
521 disable $(sanitize_var_name $var)
522 done
523}
524
525do_enable_deep(){
526 for var; do
527 enabled $var && continue
528 eval sel="\$${var}_select"
529 eval sgs="\$${var}_suggest"
530 pushvar var sgs
531 enable_deep $sel
532 popvar sgs
533 enable_deep_weak $sgs
534 popvar var
535 done
536}
537
538enable_deep(){
539 do_enable_deep $*
540 enable $*
541}
542
543enable_deep_weak(){
544 for var; do
545 disabled $var && continue
546 pushvar var
547 do_enable_deep $var
548 popvar var
549 enable_weak $var
550 done
551}
552
553enabled(){
554 test "${1#!}" = "$1" && op="=" || op="!="
555 eval test "x\$${1#!}" $op "xyes"
556}
557
558disabled(){
559 test "${1#!}" = "$1" && op="=" || op="!="
560 eval test "x\$${1#!}" $op "xno"
561}
562
563enabled_all(){
564 for opt; do
565 enabled $opt || return 1
566 done
567}
568
569disabled_all(){
570 for opt; do
571 disabled $opt || return 1
572 done
573}
574
575enabled_any(){
576 for opt; do
577 enabled $opt && return 0
578 done
579}
580
581disabled_any(){
582 for opt; do
583 disabled $opt && return 0
584 done
585 return 1
586}
587
588set_default(){
589 for opt; do
590 eval : \${$opt:=\$${opt}_default}
591 done
592}
593
594is_in(){
595 value=$1
596 shift
597 for var in $*; do
598 [ $var = $value ] && return 0
599 done
600 return 1
601}
602
603check_deps(){
604 for cfg; do
605 enabled ${cfg}_checking && die "Circular dependency for $cfg."
606 disabled ${cfg}_checking && continue
607 enable ${cfg}_checking
608
609 eval dep_all="\$${cfg}_deps"
610 eval dep_any="\$${cfg}_deps_any"
611 eval dep_con="\$${cfg}_conflict"
612 eval dep_sel="\$${cfg}_select"
613 eval dep_sgs="\$${cfg}_suggest"
614 eval dep_ifa="\$${cfg}_if"
615 eval dep_ifn="\$${cfg}_if_any"
616
617 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
618 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
619 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
620
621 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
622 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
623 enabled_all $dep_all || disable $cfg
624 enabled_any $dep_any || disable $cfg
625 disabled_all $dep_con || disable $cfg
626 disabled_any $dep_sel && disable $cfg
627
628 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
629
630 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
631 # filter out library deps, these do not belong in extralibs
632 is_in $dep $LIBRARY_LIST && continue
633 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
634 done
635
636 disable ${cfg}_checking
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
694resolve(){
695 var=$1
696 tmpvar=
697 for entry in $(eval echo \$$var); do
698 tmpvar="$tmpvar $(eval echo \$${entry})"
699 done
700 eval "$var=\"${tmpvar}\""
701}
702
703add_cppflags(){
704 append CPPFLAGS "$@"
705}
706
707add_cflags(){
708 append CFLAGS $($cflags_filter "$@")
709}
710
711add_cflags_headers(){
712 append CFLAGS_HEADERS $($cflags_filter "$@")
713}
714
715add_asflags(){
716 append ASFLAGS $($asflags_filter "$@")
717}
718
719add_objcflags(){
720 append OBJCFLAGS $($objcflags_filter "$@")
721}
722
723add_ldflags(){
724 append LDFLAGS $($ldflags_filter "$@")
725}
726
727add_ldexeflags(){
728 append LDEXEFLAGS $($ldflags_filter "$@")
729}
730
731add_ldsoflags(){
732 append LDSOFLAGS $($ldflags_filter "$@")
733}
734
735add_stripflags(){
736 append STRIPFLAGS "$@"
737}
738
739add_extralibs(){
740 prepend extralibs $($ldflags_filter "$@")
741}
742
743add_host_cppflags(){
744 append host_cppflags "$@"
745}
746
747add_host_cflags(){
748 append host_cflags $($host_cflags_filter "$@")
749}
750
751add_host_ldflags(){
752 append host_ldflags $($host_ldflags_filter "$@")
753}
754
755add_compat(){
756 append compat_objs $1
757 shift
758 map 'add_cppflags -D$v' "$@"
759}
760
761check_cmd(){
762 log "$@"
763 "$@" >> $logfile 2>&1
764}
765
766cc_o(){
767 eval printf '%s\\n' $CC_O
768}
769
770cc_e(){
771 eval printf '%s\\n' $CC_E
772}
773
774check_cc(){
775 log check_cc "$@"
776 cat > $TMPC
777 log_file $TMPC
778 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
779}
780
781check_objcc(){
782 log check_objcc "$@"
783 cat > $TMPC
784 log_file $TMPC
785 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
786}
787
788check_cpp(){
789 log check_cpp "$@"
790 cat > $TMPC
791 log_file $TMPC
792 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
793}
794
795as_o(){
796 eval printf '%s\\n' $AS_O
797}
798
799check_as(){
800 log check_as "$@"
801 cat > $TMPS
802 log_file $TMPS
803 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
804}
805
806check_inline_asm(){
807 log check_inline_asm "$@"
808 name="$1"
809 code="$2"
810 shift 2
811 disable $name
812 check_cc "$@" <<EOF && enable $name
813void foo(void){ __asm__ volatile($code); }
814EOF
815}
816
817check_insn(){
818 log check_insn "$@"
819 check_inline_asm ${1}_inline "\"$2\""
820 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
821}
822
823check_x86asm(){
824 log check_x86asm "$@"
825 echo "$1" > $TMPS
826 log_file $TMPS
827 shift 1
828 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
829}
830
831ld_o(){
832 eval printf '%s\\n' $LD_O
833}
834
835check_ld(){
836 log check_ld "$@"
837 flags=$(filter_out '-l*' "$@")
838 libs=$(filter '-l*' "$@")
839 check_cc $($cflags_filter $flags) || return
840 flags=$($ldflags_filter $flags)
841 libs=$($ldflags_filter $libs)
842 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
843}
844
845print_include(){
846 hdr=$1
847 test "${hdr%.h}" = "${hdr}" &&
848 echo "#include $hdr" ||
849 echo "#include <$hdr>"
850}
851
852check_code(){
853 log check_code "$@"
854 check=$1
855 headers=$2
856 code=$3
857 shift 3
858 {
859 for hdr in $headers; do
860 print_include $hdr
861 done
862 echo "int main(void) { $code; return 0; }"
863 } | check_$check "$@"
864}
865
866check_cppflags(){
867 log check_cppflags "$@"
868 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
869#include <stdlib.h>;
870EOF
871}
872
873test_cflags(){
874 log test_cflags "$@"
875 set -- $($cflags_filter "$@")
876 check_cc "$@" <<EOF
877int x;
878EOF
879}
880
881check_cflags(){
882 log check_cflags "$@"
883 test_cflags "$@" && add_cflags "$@"
884}
885
886test_objcflags(){
887 log test_objcflags "$@"
888 set -- $($objcflags_filter "$@")
889 check_objcc "$@" <<EOF
890int x;
891EOF
892}
893
894check_objcflags(){
895 log check_objcflags "$@"
896 test_objcflags "$@" && add_objcflags "$@"
897}
898
899test_ldflags(){
900 log test_ldflags "$@"
901 set -- $($ldflags_filter "$@")
902 check_ld "$@" <<EOF
903int main(void){ return 0; }
904EOF
905}
906
907check_ldflags(){
908 log check_ldflags "$@"
909 test_ldflags "$@" && add_ldflags "$@"
910}
911
912test_stripflags(){
913 log test_stripflags "$@"
914 # call check_cc to get a fresh TMPO
915 check_cc <<EOF
916int main(void) { return 0; }
917EOF
918 check_cmd $strip $STRIPFLAGS "$@" $TMPO
919}
920
921check_stripflags(){
922 log check_stripflags "$@"
923 test_stripflags "$@" && add_stripflags "$@"
924}
925
926check_header(){
927 log check_header "$@"
928 headers=$1
929 shift
930 disable_sanitized $headers
931 {
932 for hdr in $headers; do
933 print_include $hdr
934 done
935 echo "int x;"
936 } | check_cpp "$@" && enable_sanitized $headers
937}
938
939check_func(){
940 log check_func "$@"
941 func=$1
942 shift
943 disable $func
944 check_ld "$@" <<EOF && enable $func
945extern int $func();
946int main(void){ $func(); }
947EOF
948}
949
950check_mathfunc(){
951 log check_mathfunc "$@"
952 func=$1
953 narg=$2
954 shift 2
955 test $narg = 2 && args="f, g" || args="f"
956 disable $func
957 check_ld "$@" <<EOF && enable $func
958#include <math.h>
959float foo(float f, float g) { return $func($args); }
960int main(void){ return 0; }
961EOF
962}
963
964check_func_headers(){
965 log check_func_headers "$@"
966 headers=$1
967 funcs=$2
968 shift 2
969 {
970 for hdr in $headers; do
971 print_include $hdr
972 done
973 for func in $funcs; do
974 echo "long check_$func(void) { return (long) $func; }"
975 done
976 echo "int main(void) { return 0; }"
977 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
978}
979
980check_cpp_condition(){
981 log check_cpp_condition "$@"
982 header=$1
983 condition=$2
984 shift 2
985 check_cpp "$@" <<EOF
986#include <$header>
987#if !($condition)
988#error "unsatisfied condition: $condition"
989#endif
990EOF
991}
992
993test_cflags_cpp(){
994 log test_cflags_cpp "$@"
995 flags=$1
996 condition=$2
997 shift 2
998 set -- $($cflags_filter "$flags")
999 check_cpp "$@" <<EOF
1000#if !($condition)
1001#error "unsatisfied condition: $condition"
1002#endif
1003EOF
1004}
1005
1006check_lib(){
1007 log check_lib "$@"
1008 name="$1"
1009 headers="$2"
1010 funcs="$3"
1011 shift 3
1012 disable $name
1013 check_func_headers "$headers" "$funcs" "$@" &&
1014 enable $name && eval ${name}_extralibs="\$@"
1015}
1016
1017test_pkg_config(){
1018 log test_pkg_config "$@"
1019 name="$1"
1020 pkg_version="$2"
1021 pkg="${2%% *}"
1022 headers="$3"
1023 funcs="$4"
1024 shift 4
1025 disable $name
1026 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1027 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1028 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1029 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1030 enable $name &&
1031 set_sanitized "${name}_cflags" $pkg_cflags &&
1032 set_sanitized "${name}_extralibs" $pkg_libs
1033}
1034
1035check_pkg_config(){
1036 log check_pkg_config "$@"
1037 name="$1"
1038 test_pkg_config "$@" &&
1039 eval add_cflags \$${name}_cflags
1040}
1041
1042check_exec(){
1043 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1044}
1045
1046check_exec_crash(){
1047 log check_exec_crash "$@"
1048 code=$(cat)
1049
1050 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1051 # are safe but may not be available everywhere. Thus we use
1052 # raise(SIGTERM) instead. The check is run in a subshell so we
1053 # can redirect the "Terminated" message from the shell. SIGBUS
1054 # is not defined by standard C so it is used conditionally.
1055
1056 (check_exec "$@") >> $logfile 2>&1 <<EOF
1057#include <signal.h>
1058static void sighandler(int sig){
1059 raise(SIGTERM);
1060}
1061int foo(void){
1062 $code
1063}
1064int (*func_ptr)(void) = foo;
1065int main(void){
1066 signal(SIGILL, sighandler);
1067 signal(SIGFPE, sighandler);
1068 signal(SIGSEGV, sighandler);
1069#ifdef SIGBUS
1070 signal(SIGBUS, sighandler);
1071#endif
1072 return func_ptr();
1073}
1074EOF
1075}
1076
1077check_type(){
1078 log check_type "$@"
1079 headers=$1
1080 type=$2
1081 shift 2
1082 disable_sanitized "$type"
1083 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1084}
1085
1086check_struct(){
1087 log check_struct "$@"
1088 headers=$1
1089 struct=$2
1090 member=$3
1091 shift 3
1092 disable_sanitized "${struct}_${member}"
1093 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1094 enable_sanitized "${struct}_${member}"
1095}
1096
1097check_builtin(){
1098 log check_builtin "$@"
1099 name=$1
1100 headers=$2
1101 builtin=$3
1102 shift 3
1103 disable "$name"
1104 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1105}
1106
1107check_compile_assert(){
1108 log check_compile_assert "$@"
1109 name=$1
1110 headers=$2
1111 condition=$3
1112 shift 3
1113 disable "$name"
1114 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1115}
1116
1117require(){
1118 log require "$@"
1119 name_version="$1"
1120 name="${1%% *}"
1121 headers="$2"
1122 func="$3"
1123 shift 3
1124 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1125}
1126
1127require_header(){
1128 log require_header "$@"
1129 headers="$1"
1130 shift
1131 check_header "$headers" "$@" || die "ERROR: $headers not found"
1132}
1133
1134require_cpp_condition(){
1135 log require_cpp_condition "$@"
1136 header="$1"
1137 condition="$2"
1138 shift 2
1139 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1140}
1141
1142require_pkg_config(){
1143 log require_pkg_config "$@"
1144 pkg_version="$2"
1145 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1146}
1147
1148hostcc_e(){
1149 eval printf '%s\\n' $HOSTCC_E
1150}
1151
1152hostcc_o(){
1153 eval printf '%s\\n' $HOSTCC_O
1154}
1155
1156check_host_cc(){
1157 log check_host_cc "$@"
1158 cat > $TMPC
1159 log_file $TMPC
1160 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1161}
1162
1163check_host_cpp(){
1164 log check_host_cpp "$@"
1165 cat > $TMPC
1166 log_file $TMPC
1167 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1168}
1169
1170check_host_cppflags(){
1171 log check_host_cppflags "$@"
1172 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1173#include <stdlib.h>;
1174EOF
1175}
1176
1177check_host_cflags(){
1178 log check_host_cflags "$@"
1179 set -- $($host_cflags_filter "$@")
1180 check_host_cc "$@" <<EOF && append host_cflags "$@"
1181int x;
1182EOF
1183}
1184
1185check_host_cpp_condition(){
1186 log check_host_cpp_condition "$@"
1187 header=$1
1188 condition=$2
1189 shift 2
1190 check_host_cpp "$@" <<EOF
1191#include <$header>
1192#if !($condition)
1193#error "unsatisfied condition: $condition"
1194#endif
1195EOF
1196}
1197
1198cp_if_changed(){
1199 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1200 mkdir -p "$(dirname $2)"
1201 cp -f "$1" "$2"
1202}
1203
1204# CONFIG_LIST contains configurable options, while HAVE_LIST is for
1205# system-dependent things.
1206
1207AVCODEC_COMPONENTS="
1208 bsfs
1209 decoders
1210 encoders
1211 hwaccels
1212 parsers
1213"
1214
1215AVDEVICE_COMPONENTS="
1216 indevs
1217"
1218AVFILTER_COMPONENTS="
1219 filters
1220"
1221AVFORMAT_COMPONENTS="
1222 demuxers
1223 muxers
1224 protocols
1225"
1226
1227COMPONENT_LIST="
1228 $AVCODEC_COMPONENTS
1229 $AVDEVICE_COMPONENTS
1230 $AVFILTER_COMPONENTS
1231 $AVFORMAT_COMPONENTS
1232"
1233
1234EXAMPLE_LIST="
1235 decode_audio_example
1236 decode_video_example
1237 encode_audio_example
1238 encode_video_example
1239 filter_audio_example
1240 metadata_example
1241 output_example
1242 qsvdec_example
1243 transcode_aac_example
1244"
1245
1246# catchall list of things that require external libs to link
1247EXTRALIBS_LIST="
1248 cpu_init
1249 cws2fws
1250"
1251
1252HWACCEL_LIBRARY_NONFREE_LIST="
1253 cuda
1254 cuvid
1255 libnpp
1256"
1257HWACCEL_LIBRARY_LIST="
1258 $HWACCEL_LIBRARY_NONFREE_LIST
1259 amf
1260 d3d11va
1261 dxva2
1262 libmfx
1263 mmal
1264 nvenc
1265 omx
1266 vaapi
1267 vda
1268 vdpau
1269"
1270
1271EXTERNAL_LIBRARY_GPL_LIST="
1272 libcdio
1273 libx264
1274 libx265
1275 libxavs
1276 libxvid
1277"
1278
1279EXTERNAL_LIBRARY_NONFREE_LIST="
1280 libfaac
1281 libfdk_aac
1282 openssl
1283"
1284
1285EXTERNAL_LIBRARY_VERSION3_LIST="
1286 libopencore_amrnb
1287 libopencore_amrwb
1288 libvo_aacenc
1289 libvo_amrwbenc
1290"
1291
1292EXTERNAL_LIBRARY_LIST="
1293 $EXTERNAL_LIBRARY_GPL_LIST
1294 $EXTERNAL_LIBRARY_NONFREE_LIST
1295 $EXTERNAL_LIBRARY_VERSION3_LIST
1296 avisynth
1297 avxsynth
1298 frei0r
1299 gnutls
1300 libbs2b
1301 libdc1394
1302 libdcadec
1303 libfontconfig
1304 libfreetype
1305 libgsm
1306 libhdcd
1307 libilbc
1308 libjack
1309 libkvazaar
1310 libmp3lame
1311 libopencv
1312 libopenh264
1313 libopenjpeg
1314 libopus
1315 libpulse
1316 librtmp
1317 libschroedinger
1318 libsnappy
1319 libspeex
1320 libtheora
1321 libtwolame
1322 libvorbis
1323 libvpx
1324 libwavpack
1325 libwebp
1326 libxcb
1327 libxcb_shm
1328 libxcb_xfixes
1329"
1330
1331SYSTEM_LIBRARY_LIST="
1332 bzlib
1333 zlib
1334"
1335
1336FEATURE_LIST="
1337 gray
1338 hardcoded_tables
1339 omx_rpi
1340 runtime_cpudetect
1341 safe_bitstream_reader
1342 shared
1343 small
1344 sram
1345 static
1346 swscale_alpha
1347"
1348
1349LIBRARY_LIST="
1350 avcodec
1351 avdevice
1352 avfilter
1353 avformat
1354 avresample
1355 avutil
1356 swscale
1357"
1358
1359LICENSE_LIST="
1360 gpl
1361 nonfree
1362 version3
1363"
1364
1365PROGRAM_LIST="
1366 avconv
1367 avplay
1368 avprobe
1369"
1370
1371SUBSYSTEM_LIST="
1372 dct
1373 doc
1374 error_resilience
1375 faan
1376 fft
1377 lsp
1378 lzo
1379 mdct
1380 network
1381 rdft
1382"
1383
1384# COMPONENT_LIST needs to come last to ensure correct dependency checking
1385CONFIG_LIST="
1386 $EXAMPLE_LIST
1387 $EXTERNAL_LIBRARY_LIST
1388 $HWACCEL_LIBRARY_LIST
1389 $FEATURE_LIST
1390 $LICENSE_LIST
1391 $LIBRARY_LIST
1392 $PROGRAM_LIST
1393 $SUBSYSTEM_LIST
1394 $SYSTEM_LIBRARY_LIST
1395 neon_clobber_test
1396 pic
1397 pod2man
1398 texi2html
1399 thumb
1400 valgrind_backtrace
1401 xmm_clobber_test
1402 $COMPONENT_LIST
1403"
1404
1405THREADS_LIST="
1406 pthreads
1407 w32threads
1408"
1409
1410ATOMICS_LIST="
1411 atomics_gcc
1412 atomics_suncc
1413 atomics_win32
1414"
1415
1416ARCH_LIST="
1417 aarch64
1418 alpha
1419 arm
1420 avr32
1421 avr32_ap
1422 avr32_uc
1423 bfin
1424 ia64
1425 m68k
1426 mips
1427 mips64
1428 parisc
1429 ppc
1430 ppc64
1431 s390
1432 sh4
1433 sparc
1434 sparc64
1435 tilegx
1436 tilepro
1437 tomi
1438 x86
1439 x86_32
1440 x86_64
1441"
1442
1443ARCH_EXT_LIST_ARM="
1444 armv5te
1445 armv6
1446 armv6t2
1447 armv8
1448 neon
1449 vfp
1450 vfpv3
1451"
1452
1453ARCH_EXT_LIST_X86_SIMD="
1454 amd3dnow
1455 amd3dnowext
1456 avx
1457 avx2
1458 fma3
1459 fma4
1460 mmx
1461 mmxext
1462 sse
1463 sse2
1464 sse3
1465 sse4
1466 sse42
1467 ssse3
1468 xop
1469"
1470
1471ARCH_EXT_LIST_PPC="
1472 altivec
1473 dcbzl
1474 ldbrx
1475 power8
1476 ppc4xx
1477 vsx
1478"
1479
1480ARCH_EXT_LIST_X86="
1481 $ARCH_EXT_LIST_X86_SIMD
1482 cpunop
1483 i686
1484"
1485
1486ARCH_EXT_LIST_MIPS="
1487 loongson
1488 mips32r1
1489 mips64r1
1490 mips32r2
1491 mips64r2
1492 mips32r6
1493 mips64r6
1494"
1495
1496ARCH_EXT_LIST="
1497 $ARCH_EXT_LIST_ARM
1498 $ARCH_EXT_LIST_MIPS
1499 $ARCH_EXT_LIST_PPC
1500 $ARCH_EXT_LIST_X86
1501 vis
1502"
1503
1504ARCH_FEATURES="
1505 aligned_stack
1506 fast_64bit
1507 fast_clz
1508 fast_cmov
1509 local_aligned_8
1510 local_aligned_16
1511 local_aligned_32
1512 simd_align_16
1513 simd_align_32
1514"
1515
1516BUILTIN_LIST="
1517 atomic_cas_ptr
1518 machine_rw_barrier
1519 MemoryBarrier
1520 mm_empty
1521 rdtsc
1522 sem_timedwait
1523 sync_val_compare_and_swap
1524"
1525HAVE_LIST_CMDLINE="
1526 inline_asm
1527 symver
1528 x86asm
1529"
1530
1531HAVE_LIST_PUB="
1532 bigendian
1533 fast_unaligned
1534"
1535
1536HEADERS_LIST="
1537 AVFoundation_AVFoundation_h
1538 arpa_inet_h
1539 cdio_paranoia_h
1540 cdio_paranoia_paranoia_h
1541 dispatch_dispatch_h
1542 dev_bktr_ioctl_bt848_h
1543 dev_bktr_ioctl_meteor_h
1544 dev_ic_bt8xx_h
1545 dev_video_bktr_ioctl_bt848_h
1546 dev_video_meteor_ioctl_meteor_h
1547 direct_h
1548 dxgidebug_h
1549 dxva_h
1550 io_h
1551 machine_ioctl_bt848_h
1552 machine_ioctl_meteor_h
1553 malloc_h
1554 poll_h
1555 sys_param_h
1556 sys_resource_h
1557 sys_select_h
1558 sys_soundcard_h
1559 sys_time_h
1560 sys_un_h
1561 sys_videoio_h
1562 unistd_h
1563 valgrind_valgrind_h
1564 windows_h
1565 winsock2_h
1566"
1567
1568INTRINSICS_LIST="
1569 intrinsics_neon
1570"
1571
1572MATH_FUNCS="
1573 atanf
1574 atan2f
1575 cbrtf
1576 cosf
1577 exp2
1578 exp2f
1579 expf
1580 isinf
1581 isnan
1582 ldexpf
1583 llrint
1584 llrintf
1585 log2
1586 log2f
1587 log10f
1588 lrint
1589 lrintf
1590 powf
1591 rint
1592 round
1593 roundf
1594 sinf
1595 trunc
1596 truncf
1597"
1598
1599SYSTEM_FEATURES="
1600 dos_paths
1601 libc_msvcrt
1602 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1603 section_data_rel_ro
1604 threads
1605 uwp
1606"
1607
1608SYSTEM_FUNCS="
1609 aligned_malloc
1610 clock_gettime
1611 closesocket
1612 CommandLineToArgvW
1613 fcntl
1614 getaddrinfo
1615 gethrtime
1616 getopt
1617 GetProcessAffinityMask
1618 GetProcessMemoryInfo
1619 GetProcessTimes
1620 getrusage
1621 GetSystemTimeAsFileTime
1622 gettimeofday
1623 gmtime_r
1624 inet_aton
1625 isatty
1626 localtime_r
1627 mach_absolute_time
1628 MapViewOfFile
1629 memalign
1630 mmap
1631 mprotect
1632 nanosleep
1633 posix_memalign
1634 sched_getaffinity
1635 SetConsoleTextAttribute
1636 setmode
1637 setrlimit
1638 Sleep
1639 strerror_r
1640 sysconf
1641 sysctl
1642 usleep
1643 VirtualAlloc
1644"
1645
1646SYSTEM_LIBRARIES="
1647 sdl
1648 vaapi_1
1649 vaapi_drm
1650 vaapi_x11
1651 vdpau_x11
1652 wincrypt
1653"
1654
1655TOOLCHAIN_FEATURES="
1656 as_arch_directive
1657 as_fpu_directive
1658 as_func
1659 as_object_arch
1660 asm_mod_q
1661 blocks_extension
1662 ebp_available
1663 ebx_available
1664 gnu_as
1665 ibm_asm
1666 inline_asm_labels
1667 pragma_deprecated
1668 symver_asm_label
1669 symver_gnu_asm
1670 vfp_args
1671 xform_asm
1672 xmm_clobbers
1673"
1674
1675TYPES_LIST="
1676 CONDITION_VARIABLE_Ptr
1677 CUVIDDECODECREATEINFO_bitDepthMinus8
1678 socklen_t
1679 struct_addrinfo
1680 struct_group_source_req
1681 struct_ip_mreq_source
1682 struct_ipv6_mreq
1683 struct_pollfd
1684 struct_rusage_ru_maxrss
1685 struct_sockaddr_in6
1686 struct_sockaddr_sa_len
1687 struct_sockaddr_storage
1688 struct_v4l2_frmivalenum_discrete
1689"
1690
1691HAVE_LIST="
1692 $ARCH_EXT_LIST
1693 $(add_suffix _external $ARCH_EXT_LIST)
1694 $(add_suffix _inline $ARCH_EXT_LIST)
1695 $ARCH_FEATURES
1696 $BUILTIN_LIST
1697 $HAVE_LIST_CMDLINE
1698 $HAVE_LIST_PUB
1699 $HEADERS_LIST
1700 $INTRINSICS_LIST
1701 $MATH_FUNCS
1702 $SYSTEM_FEATURES
1703 $SYSTEM_FUNCS
1704 $SYSTEM_LIBRARIES
1705 $THREADS_LIST
1706 $TOOLCHAIN_FEATURES
1707 $TYPES_LIST
1708"
1709
1710# options emitted with CONFIG_ prefix but not available on the command line
1711CONFIG_EXTRA="
1712 aandcttables
1713 ac3dsp
1714 adts_header
1715 audio_frame_queue
1716 audiodsp
1717 blockdsp
1718 bswapdsp
1719 cabac
1720 cbs
1721 cbs_h264
1722 cbs_h265
1723 cbs_mpeg2
1724 dirac_parse
1725 dvprofile
1726 faandct
1727 faanidct
1728 fdctdsp
1729 flacdsp
1730 fmtconvert
1731 g722dsp
1732 gmp
1733 golomb
1734 gplv3
1735 h263dsp
1736 h264chroma
1737 h264dsp
1738 h264parse
1739 h264pred
1740 h264qpel
1741 hevcparse
1742 hpeldsp
1743 huffman
1744 huffyuvdsp
1745 huffyuvencdsp
1746 idctdsp
1747 iirfilter
1748 imdct15
1749 intrax8
1750 iso_media
1751 ividsp
1752 jpegtables
1753 lgplv3
1754 libx262
1755 libxcb_shape
1756 lpc
1757 lzf
1758 me_cmp
1759 mpeg_er
1760 mpegaudio
1761 mpegaudiodsp
1762 mpegaudioheader
1763 mpegvideo
1764 mpegvideoenc
1765 mss34dsp
1766 pixblockdsp
1767 qpeldsp
1768 qsv
1769 qsvdec
1770 qsvenc
1771 qsvvpp
1772 rangecoder
1773 riffdec
1774 riffenc
1775 rtpdec
1776 rtpenc_chain
1777 rv34dsp
1778 sinewin
1779 snappy
1780 srtp
1781 startcode
1782 texturedsp
1783 texturedspenc
1784 tpeldsp
1785 vaapi_encode
1786 vc1dsp
1787 videodsp
1788 vp3dsp
1789 vp56dsp
1790 vp8dsp
1791 wma_freqs
1792 wmv2dsp
1793"
1794
1795CMDLINE_SELECT="
1796 $ARCH_EXT_LIST
1797 $CONFIG_LIST
1798 $HAVE_LIST_CMDLINE
1799 $THREADS_LIST
1800 asm
1801 cross_compile
1802 debug
1803 extra_warnings
1804 logging
1805 lto
1806 optimizations
1807 rpath
1808"
1809
1810PATHS_LIST="
1811 bindir
1812 datadir
1813 docdir
1814 incdir
1815 libdir
1816 mandir
1817 prefix
1818 shlibdir
1819"
1820
1821CMDLINE_SET="
1822 $PATHS_LIST
1823 ar
1824 arch
1825 as
1826 cc
1827 objcc
1828 cpu
1829 cross_prefix
1830 custom_allocator
1831 dep_cc
1832 env
1833 extra_version
1834 host_cc
1835 host_cflags
1836 host_extralibs
1837 host_ld
1838 host_ldflags
1839 host_os
1840 ignore_tests
1841 ld
1842 logfile
1843 malloc_prefix
1844 nm
1845 optflags
1846 pkg_config
1847 pkg_config_flags
1848 samples
1849 sysinclude
1850 sysroot
1851 target_exec
1852 target_os
1853 target_path
1854 target_samples
1855 toolchain
1856 x86asmexe
1857"
1858
1859CMDLINE_APPEND="
1860 extra_cflags
1861 extra_objcflags
1862 host_cppflags
1863"
1864
1865# code dependency declarations
1866
1867# architecture extensions
1868
1869armv5te_deps="arm"
1870armv6_deps="arm"
1871armv6t2_deps="arm"
1872armv8_deps="aarch64"
1873neon_deps_any="aarch64 arm"
1874intrinsics_neon_deps="neon"
1875vfp_deps_any="aarch64 arm"
1876vfpv3_deps="vfp"
1877
1878map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1879
1880altivec_deps="ppc"
1881dcbzl_deps="ppc"
1882ldbrx_deps="ppc"
1883ppc4xx_deps="ppc"
1884vsx_deps="altivec"
1885power8_deps="vsx"
1886
1887loongson_deps="mips"
1888mips32r1_deps="mips32"
1889mips32r2_deps="mips32"
1890mips32r6_deps="mips32"
1891mips64r1_deps="mips64"
1892mips64r2_deps="mips64"
1893mips64r6_deps="mips64"
1894
1895vis_deps="sparc"
1896
1897cpunop_deps="i686"
1898x86_64_select="i686"
1899x86_64_suggest="fast_cmov"
1900
1901amd3dnow_deps="mmx"
1902amd3dnowext_deps="amd3dnow"
1903i686_deps="x86"
1904mmx_deps="x86"
1905mmxext_deps="mmx"
1906sse_deps="mmxext"
1907sse2_deps="sse"
1908sse3_deps="sse2"
1909ssse3_deps="sse3"
1910sse4_deps="ssse3"
1911sse42_deps="sse4"
1912avx_deps="sse42"
1913xop_deps="avx"
1914fma3_deps="avx"
1915fma4_deps="avx"
1916avx2_deps="avx"
1917
1918mmx_external_deps="x86asm"
1919mmx_inline_deps="inline_asm x86"
1920mmx_suggest="mmx_external mmx_inline"
1921
1922for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1923 eval dep=\$${ext}_deps
1924 eval ${ext}_external_deps='"${dep}_external"'
1925 eval ${ext}_inline_deps='"${dep}_inline"'
1926 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1927done
1928
1929aligned_stack_if_any="aarch64 ppc x86"
1930fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1931fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1932fast_unaligned_if_any="aarch64 ppc x86"
1933simd_align_16_if_any="altivec neon sse"
1934simd_align_32_if_any="avx"
1935
1936# system capabilities
1937symver_if_any="symver_asm_label symver_gnu_asm"
1938valgrind_backtrace_conflict="optimizations"
1939valgrind_backtrace_deps="valgrind_valgrind_h"
1940
1941# threading support
1942atomics_gcc_if="sync_val_compare_and_swap"
1943atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1944atomics_win32_if="MemoryBarrier"
1945atomics_native_if_any="$ATOMICS_LIST"
1946w32threads_deps="atomics_native"
1947threads_if_any="$THREADS_LIST"
1948
1949# subsystems
1950cbs_h264_select="cbs golomb"
1951cbs_h265_select="cbs golomb"
1952cbs_mpeg2_select="cbs"
1953dct_select="rdft"
1954dirac_parse_select="golomb"
1955error_resilience_select="me_cmp"
1956faandct_deps="faan"
1957faandct_select="fdctdsp"
1958faanidct_deps="faan"
1959faanidct_select="idctdsp"
1960h264dsp_select="startcode"
1961hevcparse_select="golomb"
1962intrax8_select="blockdsp idctdsp"
1963mdct_select="fft"
1964rdft_select="fft"
1965me_cmp_select="fdctdsp idctdsp pixblockdsp"
1966mpeg_er_select="error_resilience"
1967mpegaudio_select="mpegaudiodsp mpegaudioheader"
1968mpegaudiodsp_select="dct"
1969mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1970mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1971vc1dsp_select="h264chroma qpeldsp startcode"
1972
1973# decoders / encoders
1974aac_decoder_select="adts_header imdct15 mdct sinewin"
1975aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1976aac_latm_decoder_select="aac_decoder aac_latm_parser"
1977ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1978ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1979ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1980adpcm_g722_decoder_select="g722dsp"
1981adpcm_g722_encoder_select="g722dsp"
1982aic_decoder_select="golomb idctdsp"
1983alac_encoder_select="lpc"
1984als_decoder_select="bswapdsp"
1985amrnb_decoder_select="lsp"
1986amrwb_decoder_select="lsp"
1987amv_decoder_select="sp5x_decoder"
1988ape_decoder_select="bswapdsp"
1989asv1_decoder_select="blockdsp bswapdsp idctdsp"
1990asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1991asv2_decoder_select="blockdsp bswapdsp idctdsp"
1992asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1993atrac1_decoder_select="mdct sinewin"
1994atrac3_decoder_select="mdct"
1995atrac3p_decoder_select="mdct sinewin"
1996bink_decoder_select="blockdsp hpeldsp"
1997binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1998binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1999cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2000clearvideo_decoder_select="idctdsp"
2001cllc_decoder_select="bswapdsp"
2002comfortnoise_encoder_select="lpc"
2003cook_decoder_select="audiodsp mdct sinewin"
2004cscd_decoder_select="lzo"
2005cscd_decoder_suggest="zlib"
2006dca_decoder_select="fmtconvert mdct"
2007dds_decoder_select="texturedsp"
2008dnxhd_decoder_select="blockdsp idctdsp"
2009dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2010dvvideo_decoder_select="dvprofile idctdsp"
2011dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2012dxa_decoder_deps="zlib"
2013dxv_decoder_select="lzf texturedsp"
2014eac3_decoder_select="ac3_decoder"
2015eac3_encoder_select="ac3_encoder"
2016eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2017eatgq_decoder_select="aandcttables idctdsp"
2018eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2019exr_decoder_deps="zlib"
2020ffv1_decoder_select="rangecoder"
2021ffv1_encoder_select="rangecoder"
2022ffvhuff_decoder_select="huffyuv_decoder"
2023ffvhuff_encoder_select="huffyuv_encoder"
2024fic_decoder_select="golomb"
2025flac_decoder_select="flacdsp"
2026flac_encoder_select="bswapdsp flacdsp lpc"
2027flashsv_decoder_deps="zlib"
2028flashsv_encoder_deps="zlib"
2029flashsv2_decoder_deps="zlib"
2030flv_decoder_select="h263_decoder"
2031flv_encoder_select="h263_encoder"
2032fourxm_decoder_select="blockdsp bswapdsp"
2033fraps_decoder_select="bswapdsp huffman"
2034g2m_decoder_deps="zlib"
2035g2m_decoder_select="blockdsp idctdsp jpegtables"
2036h261_decoder_select="mpeg_er mpegvideo"
2037h261_encoder_select="aandcttables mpegvideoenc"
2038h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2039h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2040h263i_decoder_select="h263_decoder"
2041h263p_encoder_select="h263_encoder"
2042h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2043h264_decoder_suggest="error_resilience"
2044hap_decoder_select="snappy texturedsp"
2045hap_encoder_deps="libsnappy"
2046hap_encoder_select="texturedspenc"
2047hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2048huffyuv_decoder_select="bswapdsp huffyuvdsp"
2049huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2050iac_decoder_select="imc_decoder"
2051imc_decoder_select="bswapdsp fft mdct sinewin"
2052indeo3_decoder_select="hpeldsp"
2053indeo4_decoder_select="ividsp"
2054indeo5_decoder_select="ividsp"
2055interplay_video_decoder_select="hpeldsp"
2056jpegls_decoder_select="mjpeg_decoder"
2057jv_decoder_select="blockdsp"
2058lagarith_decoder_select="huffyuvdsp"
2059ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2060magicyuv_decoder_select="huffyuvdsp"
2061mdec_decoder_select="blockdsp idctdsp mpegvideo"
2062metasound_decoder_select="lsp mdct sinewin"
2063mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2064mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2065mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2066mjpegb_decoder_select="mjpeg_decoder"
2067mlp_decoder_select="mlp_parser"
2068motionpixels_decoder_select="bswapdsp"
2069mp1_decoder_select="mpegaudio"
2070mp1float_decoder_select="mpegaudio"
2071mp2_decoder_select="mpegaudio"
2072mp2float_decoder_select="mpegaudio"
2073mp3_decoder_select="mpegaudio"
2074mp3adu_decoder_select="mpegaudio"
2075mp3adufloat_decoder_select="mpegaudio"
2076mp3float_decoder_select="mpegaudio"
2077mp3on4_decoder_select="mpegaudio"
2078mp3on4float_decoder_select="mpegaudio"
2079mpc7_decoder_select="bswapdsp mpegaudiodsp"
2080mpc8_decoder_select="mpegaudiodsp"
2081mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2082mpeg1video_encoder_select="aandcttables mpegvideoenc"
2083mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2084mpeg2video_encoder_select="aandcttables mpegvideoenc"
2085mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2086mpeg4_encoder_select="h263_encoder"
2087msa1_decoder_select="mss34dsp"
2088msmpeg4v1_decoder_select="h263_decoder"
2089msmpeg4v2_decoder_select="h263_decoder"
2090msmpeg4v2_encoder_select="h263_encoder"
2091msmpeg4v3_decoder_select="h263_decoder"
2092msmpeg4v3_encoder_select="h263_encoder"
2093mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2094mts2_decoder_select="mss34dsp"
2095mxpeg_decoder_select="mjpeg_decoder"
2096nellymoser_decoder_select="mdct sinewin"
2097nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2098nuv_decoder_select="idctdsp lzo"
2099on2avc_decoder_select="mdct"
2100opus_decoder_deps="avresample"
2101opus_decoder_select="imdct15"
2102png_decoder_deps="zlib"
2103png_encoder_deps="zlib"
2104png_encoder_select="huffyuvencdsp"
2105prores_decoder_select="idctdsp"
2106prores_encoder_select="fdctdsp"
2107qcelp_decoder_select="lsp"
2108qdm2_decoder_select="mdct rdft mpegaudiodsp"
2109ra_144_encoder_select="audio_frame_queue lpc"
2110ralf_decoder_select="golomb"
2111rscc_decoder_deps="zlib"
2112rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2113rv10_encoder_select="h263_encoder"
2114rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2115rv20_encoder_select="h263_encoder"
2116rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2117rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2118screenpresso_decoder_deps="zlib"
2119sipr_decoder_select="lsp"
2120sp5x_decoder_select="mjpeg_decoder"
2121svq1_decoder_select="hpeldsp"
2122svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2123svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2124svq3_decoder_suggest="zlib"
2125tak_decoder_select="audiodsp"
2126tdsc_decoder_deps="zlib"
2127tdsc_decoder_select="mjpeg_decoder"
2128theora_decoder_select="vp3_decoder"
2129thp_decoder_select="mjpeg_decoder"
2130tiff_decoder_suggest="zlib"
2131tiff_encoder_suggest="zlib"
2132truehd_decoder_select="mlp_decoder"
2133truemotion2_decoder_select="bswapdsp"
2134truespeech_decoder_select="bswapdsp"
2135tscc_decoder_deps="zlib"
2136txd_decoder_select="texturedsp"
2137twinvq_decoder_select="mdct lsp sinewin"
2138utvideo_decoder_select="bswapdsp huffyuvdsp"
2139utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2140vble_decoder_select="huffyuvdsp"
2141vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2142vc1image_decoder_select="vc1_decoder"
2143vorbis_decoder_select="mdct"
2144vorbis_encoder_select="mdct"
2145vp3_decoder_select="hpeldsp vp3dsp videodsp"
2146vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2147vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2148vp6a_decoder_select="vp6_decoder"
2149vp6f_decoder_select="vp6_decoder"
2150vp7_decoder_select="h264pred videodsp vp8dsp"
2151vp8_decoder_select="h264pred videodsp vp8dsp"
2152vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2153webp_decoder_select="vp8_decoder"
2154wmapro_decoder_select="mdct sinewin wma_freqs"
2155wmav1_decoder_select="mdct sinewin wma_freqs"
2156wmav1_encoder_select="mdct sinewin wma_freqs"
2157wmav2_decoder_select="mdct sinewin wma_freqs"
2158wmav2_encoder_select="mdct sinewin wma_freqs"
2159wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2160wmv1_decoder_select="h263_decoder"
2161wmv1_encoder_select="h263_encoder"
2162wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2163wmv2_encoder_select="h263_encoder wmv2dsp"
2164wmv3_decoder_select="vc1_decoder"
2165wmv3image_decoder_select="wmv3_decoder"
2166zerocodec_decoder_deps="zlib"
2167zlib_decoder_deps="zlib"
2168zlib_encoder_deps="zlib"
2169zmbv_decoder_deps="zlib"
2170zmbv_encoder_deps="zlib"
2171
2172# hardware accelerators
2173d3d11va_deps="dxva_h ID3D11VideoDecoder"
2174dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2175vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2176vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2177
2178h263_vaapi_hwaccel_deps="vaapi"
2179h263_vaapi_hwaccel_select="h263_decoder"
2180h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2181h264_cuvid_hwaccel_select="h264_decoder"
2182h264_d3d11va_hwaccel_deps="d3d11va"
2183h264_d3d11va_hwaccel_select="h264_decoder"
2184h264_d3d11va2_hwaccel_deps="d3d11va"
2185h264_d3d11va2_hwaccel_select="h264_decoder"
2186h264_dxva2_hwaccel_deps="dxva2"
2187h264_dxva2_hwaccel_select="h264_decoder"
2188h264_vaapi_hwaccel_deps="vaapi"
2189h264_vaapi_hwaccel_select="h264_decoder"
2190h264_vda_hwaccel_deps="vda"
2191h264_vda_hwaccel_select="h264_decoder"
2192h264_vda_old_hwaccel_deps="vda"
2193h264_vda_old_hwaccel_select="h264_decoder"
2194h264_vdpau_hwaccel_deps="vdpau"
2195h264_vdpau_hwaccel_select="h264_decoder"
2196hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2197hevc_cuvid_hwaccel_select="hevc_decoder"
2198hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2199hevc_d3d11va_hwaccel_select="hevc_decoder"
2200hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2201hevc_d3d11va2_hwaccel_select="hevc_decoder"
2202hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2203hevc_dxva2_hwaccel_select="hevc_decoder"
2204hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2205hevc_vaapi_hwaccel_select="hevc_decoder"
2206hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2207hevc_vdpau_hwaccel_select="hevc_decoder"
2208mpeg1_vdpau_hwaccel_deps="vdpau"
2209mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2210mpeg2_d3d11va_hwaccel_deps="d3d11va"
2211mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2212mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2213mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2214mpeg2_dxva2_hwaccel_deps="dxva2"
2215mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2216mpeg2_vaapi_hwaccel_deps="vaapi"
2217mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2218mpeg2_vdpau_hwaccel_deps="vdpau"
2219mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2220mpeg4_vaapi_hwaccel_deps="vaapi"
2221mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2222mpeg4_vdpau_hwaccel_deps="vdpau"
2223mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2224vc1_d3d11va_hwaccel_deps="d3d11va"
2225vc1_d3d11va_hwaccel_select="vc1_decoder"
2226vc1_d3d11va2_hwaccel_deps="d3d11va"
2227vc1_d3d11va2_hwaccel_select="vc1_decoder"
2228vc1_dxva2_hwaccel_deps="dxva2"
2229vc1_dxva2_hwaccel_select="vc1_decoder"
2230vc1_vaapi_hwaccel_deps="vaapi"
2231vc1_vaapi_hwaccel_select="vc1_decoder"
2232vc1_vdpau_hwaccel_deps="vdpau"
2233vc1_vdpau_hwaccel_select="vc1_decoder"
2234vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2235vp8_vaapi_hwaccel_select="vp8_decoder"
2236wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2237wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2238wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2239wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2240wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2241
2242# hardware-accelerated codecs
2243amf_deps_any="libdl LoadLibrary"
2244nvenc_deps_any="libdl LoadLibrary"
2245omx_deps="libdl pthreads"
2246omx_rpi_select="omx"
2247qsv_deps="libmfx"
2248qsvdec_select="qsv"
2249qsvenc_select="qsv"
2250qsvvpp_select="qsv"
2251vaapi_encode_deps="vaapi"
2252
2253hwupload_cuda_filter_deps="cuda"
2254scale_npp_filter_deps="cuda libnpp"
2255
2256h264_amf_encoder_deps="amf"
2257h264_mmal_decoder_deps="mmal"
2258h264_nvenc_encoder_deps="nvenc"
2259h264_omx_encoder_deps="omx"
2260h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
2261h264_qsv_encoder_select="qsvenc"
2262h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2263h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2264hevc_amf_encoder_deps="amf"
2265hevc_nvenc_encoder_deps="nvenc"
2266hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2267hevc_qsv_encoder_select="hevcparse qsvenc"
2268hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2269hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2270mjpeg_qsv_encoder_deps="libmfx"
2271mjpeg_qsv_encoder_select="qsvenc"
2272mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2273mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2274mpeg2_mmal_decoder_deps="mmal"
2275mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2276mpeg2_qsv_encoder_select="qsvenc"
2277mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2278mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2279mpeg4_omx_encoder_deps="omx"
2280vc1_mmal_decoder_deps="mmal"
2281vc1_qsv_decoder_select="qsvdec vc1_parser"
2282vp8_qsv_decoder_select="qsvdec vp8_parser"
2283vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2284vp8_vaapi_encoder_select="vaapi_encode"
2285vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2286vp9_vaapi_encoder_select="vaapi_encode"
2287
2288nvenc_h264_encoder_select="h264_nvenc_encoder"
2289nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2290
2291# parsers
2292aac_parser_select="adts_header"
2293h264_parser_select="golomb h264dsp h264parse"
2294hevc_parser_select="hevcparse"
2295mpegaudio_parser_select="mpegaudioheader"
2296mpegvideo_parser_select="mpegvideo"
2297mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2298vc1_parser_select="vc1dsp"
2299
2300# bitstream_filters
2301aac_adtstoasc_bsf_select="adts_header"
2302h264_metadata_bsf_select="cbs_h264"
2303h264_redundant_pps_bsf_select="cbs_h264"
2304hevc_metadata_bsf_select="cbs_h265"
2305mjpeg2jpeg_bsf_select="jpegtables"
2306mpeg2_metadata_bsf_select="cbs_mpeg2"
2307trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2308
2309# external libraries
2310avisynth_deps="LoadLibrary"
2311avxsynth_deps="libdl"
2312avisynth_demuxer_deps_any="avisynth avxsynth"
2313avisynth_demuxer_select="riffdec"
2314libdcadec_decoder_deps="libdcadec"
2315libfaac_encoder_deps="libfaac"
2316libfaac_encoder_select="audio_frame_queue"
2317libfdk_aac_decoder_deps="libfdk_aac"
2318libfdk_aac_encoder_deps="libfdk_aac"
2319libfdk_aac_encoder_select="audio_frame_queue"
2320libgsm_decoder_deps="libgsm"
2321libgsm_encoder_deps="libgsm"
2322libgsm_ms_decoder_deps="libgsm"
2323libgsm_ms_encoder_deps="libgsm"
2324libilbc_decoder_deps="libilbc"
2325libilbc_encoder_deps="libilbc"
2326libkvazaar_encoder_deps="libkvazaar"
2327libmp3lame_encoder_deps="libmp3lame"
2328libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2329libopencore_amrnb_decoder_deps="libopencore_amrnb"
2330libopencore_amrnb_encoder_deps="libopencore_amrnb"
2331libopencore_amrnb_encoder_select="audio_frame_queue"
2332libopencore_amrwb_decoder_deps="libopencore_amrwb"
2333libopenh264_decoder_deps="libopenh264"
2334libopenh264_decoder_select="h264_mp4toannexb_bsf"
2335libopenh264_encoder_deps="libopenh264"
2336libopenjpeg_decoder_deps="libopenjpeg"
2337libopenjpeg_encoder_deps="libopenjpeg"
2338libopus_decoder_deps="libopus"
2339libopus_encoder_deps="libopus"
2340libopus_encoder_select="audio_frame_queue"
2341libschroedinger_decoder_deps="libschroedinger"
2342libschroedinger_encoder_deps="libschroedinger"
2343libspeex_decoder_deps="libspeex"
2344libspeex_encoder_deps="libspeex"
2345libspeex_encoder_select="audio_frame_queue"
2346libtheora_encoder_deps="libtheora"
2347libtwolame_encoder_deps="libtwolame"
2348libvo_aacenc_encoder_deps="libvo_aacenc"
2349libvo_aacenc_encoder_select="audio_frame_queue"
2350libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2351libvorbis_encoder_deps="libvorbis"
2352libvorbis_encoder_select="audio_frame_queue"
2353libvpx_vp8_decoder_deps="libvpx"
2354libvpx_vp8_encoder_deps="libvpx"
2355libvpx_vp9_decoder_deps="libvpx"
2356libvpx_vp9_encoder_deps="libvpx"
2357libwavpack_encoder_deps="libwavpack"
2358libwavpack_encoder_select="audio_frame_queue"
2359libwebp_encoder_deps="libwebp"
2360libx262_encoder_deps="libx262"
2361libx264_encoder_deps="libx264"
2362libx265_encoder_deps="libx265"
2363libxavs_encoder_deps="libxavs"
2364libxvid_encoder_deps="libxvid mkstemp"
2365
2366# demuxers / muxers
2367ac3_demuxer_select="ac3_parser"
2368asf_demuxer_select="riffdec"
2369asf_muxer_select="riffenc"
2370asf_stream_muxer_select="asf_muxer"
2371avi_demuxer_select="iso_media riffdec"
2372avi_muxer_select="riffenc"
2373caf_demuxer_select="iso_media riffdec"
2374dash_muxer_select="mp4_muxer"
2375dirac_demuxer_select="dirac_parser"
2376dv_demuxer_select="dvprofile"
2377dv_muxer_select="dvprofile"
2378dxa_demuxer_select="riffdec"
2379eac3_demuxer_select="ac3_parser"
2380f4v_muxer_select="mov_muxer"
2381flac_demuxer_select="flac_parser"
2382hds_muxer_select="flv_muxer"
2383hls_muxer_select="mpegts_muxer"
2384ipod_muxer_select="mov_muxer"
2385ismv_muxer_select="mov_muxer"
2386matroska_audio_muxer_select="matroska_muxer"
2387matroska_demuxer_select="iso_media riffdec"
2388matroska_demuxer_suggest="bzlib lzo zlib"
2389matroska_muxer_select="iso_media riffenc"
2390mmf_muxer_select="riffenc"
2391mov_demuxer_select="iso_media riffdec"
2392mov_demuxer_suggest="zlib"
2393mov_muxer_select="iso_media riffenc rtpenc_chain"
2394mp3_demuxer_select="mpegaudio_parser"
2395mp3_muxer_select="mpegaudioheader"
2396mp4_muxer_select="mov_muxer"
2397mpegts_demuxer_select="iso_media"
2398mpegts_muxer_select="adts_muxer latm_muxer"
2399mpegtsraw_demuxer_select="mpegts_demuxer"
2400mxf_d10_muxer_select="mxf_muxer"
2401nut_muxer_select="riffenc"
2402nuv_demuxer_select="riffdec"
2403oga_muxer_select="ogg_muxer"
2404ogg_demuxer_select="dirac_parse"
2405opus_muxer_select="ogg_muxer"
2406psp_muxer_select="mov_muxer"
2407rtp_demuxer_select="sdp_demuxer"
2408rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2409rtsp_demuxer_select="http_protocol rtpdec"
2410rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2411sap_demuxer_select="sdp_demuxer"
2412sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2413sdp_demuxer_select="rtpdec"
2414smoothstreaming_muxer_select="ismv_muxer"
2415spdif_demuxer_select="adts_header"
2416spdif_muxer_select="adts_header"
2417spx_muxer_select="ogg_muxer"
2418swf_demuxer_suggest="zlib"
2419tak_demuxer_select="tak_parser"
2420tg2_muxer_select="mov_muxer"
2421tgp_muxer_select="mov_muxer"
2422w64_demuxer_select="wav_demuxer"
2423wav_demuxer_select="riffdec"
2424wav_muxer_select="riffenc"
2425webm_muxer_select="iso_media riffenc"
2426wtv_demuxer_select="mpegts_demuxer riffdec"
2427xmv_demuxer_select="riffdec"
2428xwma_demuxer_select="riffdec"
2429
2430# indevs
2431alsa_indev_deps="alsa"
2432avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2433avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2434bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2435fbdev_indev_deps="linux_fb_h"
2436jack_indev_deps="libjack"
2437jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2438libcdio_indev_deps="libcdio"
2439libdc1394_indev_deps="libdc1394"
2440oss_indev_deps_any="sys_soundcard_h"
2441pulse_indev_deps="libpulse"
2442sndio_indev_deps="sndio"
2443v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2444vfwcap_indev_deps="vfw32 vfwcap_defines"
2445xcbgrab_indev_deps="libxcb libxcb_shape"
2446xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2447
2448# protocols
2449ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2450ffrtmpcrypt_protocol_deps_any="gmp openssl"
2451ffrtmpcrypt_protocol_select="tcp_protocol"
2452ffrtmphttp_protocol_conflict="librtmp_protocol"
2453ffrtmphttp_protocol_select="http_protocol"
2454gopher_protocol_select="network"
2455http_protocol_select="tcp_protocol"
2456http_protocol_suggest="zlib"
2457httpproxy_protocol_select="tcp_protocol"
2458httpproxy_protocol_suggest="zlib"
2459https_protocol_select="tls_protocol"
2460https_protocol_suggest="zlib"
2461icecast_protocol_select="http_protocol"
2462librtmp_protocol_deps="librtmp"
2463librtmpe_protocol_deps="librtmp"
2464librtmps_protocol_deps="librtmp"
2465librtmpt_protocol_deps="librtmp"
2466librtmpte_protocol_deps="librtmp"
2467mmsh_protocol_select="http_protocol"
2468mmst_protocol_select="network"
2469rtmp_protocol_conflict="librtmp_protocol"
2470rtmp_protocol_select="tcp_protocol"
2471rtmp_protocol_suggest="zlib"
2472rtmpe_protocol_select="ffrtmpcrypt_protocol"
2473rtmpe_protocol_suggest="zlib"
2474rtmps_protocol_conflict="librtmp_protocol"
2475rtmps_protocol_select="tls_protocol"
2476rtmps_protocol_suggest="zlib"
2477rtmpt_protocol_select="ffrtmphttp_protocol"
2478rtmpt_protocol_suggest="zlib"
2479rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2480rtmpte_protocol_suggest="zlib"
2481rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2482rtmpts_protocol_suggest="zlib"
2483rtp_protocol_select="udp_protocol"
2484sctp_protocol_deps="struct_sctp_event_subscribe"
2485sctp_protocol_select="network"
2486srtp_protocol_select="rtp_protocol srtp"
2487tcp_protocol_select="network"
2488tls_protocol_deps_any="gnutls openssl"
2489tls_protocol_select="tcp_protocol"
2490udp_protocol_select="network"
2491unix_protocol_deps="sys_un_h"
2492unix_protocol_select="network"
2493
2494# filters
2495asyncts_filter_deps="avresample"
2496blackframe_filter_deps="gpl"
2497boxblur_filter_deps="gpl"
2498bs2b_filter_deps="libbs2b"
2499cropdetect_filter_deps="gpl"
2500deinterlace_qsv_filter_deps="libmfx"
2501deinterlace_vaapi_filter_deps="vaapi"
2502delogo_filter_deps="gpl"
2503drawtext_filter_deps="libfreetype"
2504drawtext_filter_suggest="libfontconfig"
2505frei0r_filter_deps="frei0r libdl"
2506frei0r_src_filter_deps="frei0r libdl"
2507hdcd_filter_deps="libhdcd"
2508hqdn3d_filter_deps="gpl"
2509interlace_filter_deps="gpl"
2510movie_filter_deps="avcodec avformat"
2511ocv_filter_deps="libopencv"
2512overlay_qsv_filter_deps="libmfx"
2513overlay_qsv_filter_select="qsvvpp"
2514resample_filter_deps="avresample"
2515scale_filter_deps="swscale"
2516scale_qsv_filter_deps="libmfx"
2517scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2518vpp_qsv_filter_deps="libmfx"
2519vpp_qsv_filter_select="qsvvpp"
2520
2521# examples
2522decode_audio_example_deps="avcodec avutil"
2523decode_video_example_deps="avcodec avutil"
2524encode_audio_example_deps="avcodec avutil"
2525encode_video_example_deps="avcodec avutil"
2526filter_audio_example_deps="avfilter avutil"
2527metadata_example_deps="avformat avutil"
2528output_example_deps="avcodec avformat avresample avutil swscale"
2529qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2530transcode_aac_example_deps="avcodec avformat avresample"
2531
2532# EXTRALIBS_LIST
2533cpu_init_extralibs="pthreads_extralibs"
2534cws2fws_extralibs="zlib_extralibs"
2535
2536# libraries, in linking order
2537avcodec_deps="avutil"
2538avcodec_select="null_bsf"
2539avdevice_deps="avformat avcodec avutil"
2540avfilter_deps="avutil"
2541avformat_deps="avcodec avutil"
2542avformat_suggest="network"
2543avresample_deps="avutil"
2544swscale_deps="avutil"
2545
2546avcodec_extralibs="pthreads_extralibs libm_extralibs"
2547avdevice_extralibs="libm_extralibs"
2548avformat_extralibs="libm_extralibs"
2549avfilter_extralibs="pthreads_extralibs libm_extralibs"
2550avresample_extralibs="libm_extralibs"
2551avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2552swscale_extralibs="libm_extralibs"
2553
2554# programs
2555avconv_deps="avcodec avfilter avformat avresample swscale"
2556avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2557 fps_filter null_filter resample_filter scale_filter
2558 trim_filter"
2559avconv_suggest="psapi shell32"
2560avplay_deps="avcodec avfilter avformat avresample sdl"
2561avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2562avplay_suggest="shell32"
2563avprobe_deps="avcodec avformat"
2564avprobe_suggest="shell32"
2565
2566# documentation
2567pod2man_deps="doc"
2568texi2html_deps="doc"
2569
2570# default parameters
2571
2572logfile="avbuild/config.log"
2573
2574# installation paths
2575prefix_default="/usr/local"
2576bindir_default='${prefix}/bin'
2577datadir_default='${prefix}/share/avconv'
2578docdir_default='${prefix}/share/doc/libav'
2579incdir_default='${prefix}/include'
2580libdir_default='${prefix}/lib'
2581mandir_default='${prefix}/share/man'
2582shlibdir_default="$libdir_default"
2583
2584# toolchain
2585ar_default="ar"
2586cc_default="gcc"
2587host_cc_default="gcc"
2588x86asmexe_default="nasm"
2589ln_s="ln -s -f"
2590nm_default="nm -g"
2591pkg_config_default=pkg-config
2592ranlib="ranlib"
2593strip="strip"
2594version_script='--version-script'
2595objformat="elf32"
2596
2597# machine
2598arch_default=$(uname -m)
2599cpu="generic"
2600intrinsics="none"
2601
2602# OS
2603target_os_default=$(tolower $(uname -s))
2604host_os=$target_os_default
2605
2606# configurable options
2607enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2608
2609enable asm
2610enable debug
2611enable doc
2612enable faan faandct faanidct
2613enable optimizations
2614enable safe_bitstream_reader
2615enable static
2616enable swscale_alpha
2617enable valgrind_backtrace
2618
2619# By default, enable only those hwaccels that have no external dependencies.
2620enable d3d11va dxva2 vda vdpau
2621
2622# internal components are enabled by default
2623enable $EXTRALIBS_LIST
2624
2625# Avoid external, non-system, libraries getting enabled by dependency resolution
2626disable $EXTERNAL_LIBRARY_LIST
2627
2628# build settings
2629SHFLAGS='-shared -Wl,-soname,$$(@F)'
2630LIBPREF="lib"
2631LIBSUF=".a"
2632LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2633SLIBPREF="lib"
2634SLIBSUF=".so"
2635SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2636SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2637SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2638LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2639SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2640SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2641VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2642
2643asflags_filter=echo
2644cflags_filter=echo
2645ldflags_filter=echo
2646
2647AS_C='-c'
2648AS_O='-o $@'
2649CC_C='-c'
2650CC_E='-E -o $@'
2651CC_O='-o $@'
2652OBJCC_C='-c'
2653OBJCC_E='-E -o $@'
2654OBJCC_O='-o $@'
2655X86ASM_O='-o $@'
2656LD_O='-o $@'
2657LD_LIB='-l%'
2658LD_PATH='-L'
2659HOSTCC_C='-c'
2660HOSTCC_E='-E -o $@'
2661HOSTCC_O='-o $@'
2662HOSTLD_O='-o $@'
2663
2664host_extralibs='-lm'
2665host_cflags_filter=echo
2666host_ldflags_filter=echo
2667
2668target_path='$(CURDIR)'
2669
2670# since the object filename is not given with the -MM flag, the compiler
2671# is only able to print the basename, and we must add the path ourselves
2672DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2673DEPFLAGS='-MM'
2674
2675mkdir -p avbuild
2676
2677# find source path
2678if test -f configure; then
2679 source_path=.
2680else
2681 source_path=$(cd $(dirname "$0"); pwd)
2682 echo "$source_path" | grep -q '[[:blank:]]' &&
2683 die "Out of tree builds are impossible with whitespace in source path."
2684 test -e "$source_path/config.h" &&
2685 die "Out of tree builds are impossible with config.h in source dir."
2686fi
2687
2688for v in "$@"; do
2689 r=${v#*=}
2690 l=${v%"$r"}
2691 r=$(sh_quote "$r")
2692 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2693done
2694
2695find_things(){
2696 thing=$1
2697 pattern=$2
2698 file=$source_path/$3
2699 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2700}
2701
2702ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2703DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2704PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2705MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2706DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2707INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2708FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2709
2710find_things_extern(){
2711 thing=$1
2712 pattern=$2
2713 file=$source_path/$3
2714 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2715}
2716
2717BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2718HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
2719PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2720
2721AVCODEC_COMPONENTS_LIST="
2722 $BSF_LIST
2723 $DECODER_LIST
2724 $ENCODER_LIST
2725 $HWACCEL_LIST
2726 $PARSER_LIST
2727"
2728
2729AVDEVICE_COMPONENTS_LIST="
2730 $INDEV_LIST
2731"
2732
2733AVFILTER_COMPONENTS_LIST="
2734 $FILTER_LIST
2735"
2736
2737AVFORMAT_COMPONENTS_LIST="
2738 $DEMUXER_LIST
2739 $MUXER_LIST
2740 $PROTOCOL_LIST
2741"
2742
2743ALL_COMPONENTS="
2744 $AVCODEC_COMPONENTS_LIST
2745 $AVDEVICE_COMPONENTS_LIST
2746 $AVFILTER_COMPONENTS_LIST
2747 $AVFORMAT_COMPONENTS_LIST
2748"
2749
2750for n in $COMPONENT_LIST; do
2751 v=$(toupper ${n%s})_LIST
2752 eval enable \$$v
2753 eval ${n}_if_any="\$$v"
2754done
2755
2756enable $ARCH_EXT_LIST
2757
2758die_unknown(){
2759 echo "Unknown option \"$1\"."
2760 echo "See $0 --help for available options."
2761 exit 1
2762}
2763
2764print_3_columns() {
2765 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2766}
2767
2768show_list() {
2769 suffix=_$1
2770 shift
2771 echo $* | sed s/$suffix//g | print_3_columns
2772 exit 0
2773}
2774
2775for opt do
2776 optval="${opt#*=}"
2777 case "$opt" in
2778 --extra-ldflags=*)
2779 add_ldflags $optval
2780 ;;
2781 --extra-ldexeflags=*)
2782 add_ldexeflags $optval
2783 ;;
2784 --extra-ldsoflags=*)
2785 add_ldsoflags $optval
2786 ;;
2787 --extra-libs=*)
2788 add_extralibs $optval
2789 ;;
2790 --disable-devices)
2791 disable $INDEV_LIST
2792 ;;
2793 --enable-debug=*)
2794 debuglevel="$optval"
2795 ;;
2796 --disable-programs)
2797 disable $PROGRAM_LIST
2798 ;;
2799 --disable-everything)
2800 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2801 ;;
2802 --disable-all)
2803 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2804 disable $LIBRARY_LIST $PROGRAM_LIST doc
2805 ;;
2806 --enable-*=*|--disable-*=*)
2807 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2808 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2809 eval list=\$$(toupper $thing)_LIST
2810 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2811 $action $(filter "$name" $list)
2812 ;;
2813 --enable-yasm|--disable-yasm)
2814 warn "The ${opt} option is only provided for compatibility and will be\n"\
2815 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2816 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2817 ;;
2818 --enable-?*|--disable-?*)
2819 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2820 if is_in $option $COMPONENT_LIST; then
2821 test $action = disable && action=unset
2822 eval $action \$$(toupper ${option%s})_LIST
2823 elif is_in $option $CMDLINE_SELECT; then
2824 $action $option
2825 else
2826 die_unknown $opt
2827 fi
2828 ;;
2829 --list-*)
2830 NAME="${opt#--list-}"
2831 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2832 NAME=${NAME%s}
2833 eval show_list $NAME \$$(toupper $NAME)_LIST
2834 ;;
2835 --help|-h) show_help
2836 ;;
2837 --quiet|-q) quiet=yes
2838 ;;
2839 *)
2840 optname="${opt%%=*}"
2841 optname="${optname#--}"
2842 optname=$(echo "$optname" | sed 's/-/_/g')
2843 if is_in $optname $CMDLINE_SET; then
2844 eval $optname='$optval'
2845 elif is_in $optname $CMDLINE_APPEND; then
2846 append $optname "$optval"
2847 else
2848 die_unknown $opt
2849 fi
2850 ;;
2851 esac
2852done
2853
2854for e in $env; do
2855 eval "export $e"
2856done
2857
2858disabled logging && logfile=/dev/null
2859
2860# command line configuration sanity checks
2861
2862# we need to build at least one lib type
2863if ! enabled_any static shared; then
2864 cat <<EOF
2865At least one library type must be built.
2866Specify --enable-static to build the static libraries or --enable-shared to
2867build the shared libraries as well. To only build the shared libraries specify
2868--disable-static in addition to --enable-shared.
2869EOF
2870 exit 1
2871fi
2872
2873# Die early if licensing-related configure options are incompatible.
2874die_license_disabled() {
2875 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2876}
2877
2878map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2879map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2880map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2881
2882enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2883
2884if enabled nonfree; then
2885 license="nonfree and unredistributable"
2886elif enabled gplv3; then
2887 license="GPL version 3 or later"
2888elif enabled lgplv3; then
2889 license="LGPL version 3 or later"
2890elif enabled gpl; then
2891 license="GPL version 2 or later"
2892else
2893 license="LGPL version 2.1 or later"
2894fi
2895
2896enabled_all gnutls openssl &&
2897 die "GnuTLS and OpenSSL must not be enabled at the same time."
2898
2899# Disable all the library-specific components if the library itself
2900# is disabled, see AVCODEC_LIST and following _LIST variables.
2901
2902disable_components(){
2903 disabled ${1} && disable $(
2904 eval components="\$$(toupper ${1})_COMPONENTS"
2905 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2906 )
2907}
2908
2909map 'disable_components $v' $LIBRARY_LIST
2910
2911echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2912set >> $logfile
2913
2914case "$toolchain" in
2915 *-asan)
2916 cc_default="${toolchain%-asan}"
2917 add_cflags -fsanitize=address
2918 add_ldflags -fsanitize=address
2919 ;;
2920 *-msan)
2921 cc_default="${toolchain%-msan}"
2922 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2923 add_ldflags -fsanitize=memory
2924 ;;
2925 *-tsan)
2926 cc_default="${toolchain%-tsan}"
2927 add_cflags -fsanitize=thread -fPIE
2928 add_ldflags -fsanitize=thread -pie
2929 case "$toolchain" in
2930 gcc-tsan)
2931 add_cflags -fPIC
2932 add_ldflags -fPIC
2933 ;;
2934 esac
2935 ;;
2936 *-usan)
2937 cc_default="${toolchain%-usan}"
2938 add_cflags -fsanitize=undefined
2939 add_ldflags -fsanitize=undefined
2940 case "$toolchain" in
2941 clang-usan)
2942 add_cflags -O1
2943 ;;
2944 esac
2945 ;;
2946 valgrind-*)
2947 target_exec_default="valgrind"
2948 case "$toolchain" in
2949 valgrind-massif)
2950 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2951 ;;
2952 valgrind-memcheck)
2953 target_exec_args="--track-origins=yes --leak-check=full"
2954 ;;
2955 esac
2956 ;;
2957 msvc)
2958 # Check whether the current MSVC version needs the C99 converter.
2959 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2960 # support enough of C99 to build libav. Default to the new
2961 # behaviour if the regexp was unable to match anything, since this
2962 # successfully parses the version number of existing supported
2963 # versions that require the converter (MSVC 2010 and 2012).
2964 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2965 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2966 cc_default="cl"
2967 else
2968 cc_default="c99wrap cl"
2969 fi
2970 ld_default="$source_path/compat/windows/mslink"
2971 nm_default="dumpbin -symbols"
2972 ar_default="lib"
2973 case "$arch" in
2974 aarch64|arm64)
2975 as_default="armasm64"
2976 ;;
2977 arm*)
2978 as_default="armasm"
2979 ;;
2980 esac
2981 target_os_default="win32"
2982 # Use a relative path for TMPDIR. This makes sure all the
2983 # ffconf temp files are written with a relative path, avoiding
2984 # issues with msys/win32 path conversion for MSVC parameters
2985 # such as -Fo<file> or -out:<file>.
2986 TMPDIR=.
2987 ;;
2988 icl)
2989 cc_default="icl"
2990 ld_default="xilink"
2991 nm_default="dumpbin -symbols"
2992 ar_default="xilib"
2993 target_os_default="win32"
2994 TMPDIR=.
2995 ;;
2996 gcov)
2997 add_cflags -fprofile-arcs -ftest-coverage
2998 add_ldflags -fprofile-arcs -ftest-coverage
2999 ;;
3000 llvm-cov)
3001 add_cflags -fprofile-arcs -ftest-coverage
3002 add_ldflags --coverage
3003 ;;
3004 hardened)
3005 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3006 add_cflags -fno-strict-overflow -fstack-protector-all
3007 add_ldflags -Wl,-z,relro -Wl,-z,now
3008 ;;
3009 ?*)
3010 die "Unknown toolchain $toolchain"
3011 ;;
3012esac
3013
3014if test -n "$cross_prefix"; then
3015 test -n "$arch" && test -n "$target_os" ||
3016 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3017 enable cross_compile
3018fi
3019
3020ar_default="${cross_prefix}${ar_default}"
3021cc_default="${cross_prefix}${cc_default}"
3022objcc_default="${cross_prefix}${objcc_default}"
3023x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3024nm_default="${cross_prefix}${nm_default}"
3025pkg_config_default="${cross_prefix}${pkg_config_default}"
3026ranlib="${cross_prefix}${ranlib}"
3027strip="${cross_prefix}${strip}"
3028
3029sysinclude_default="${sysroot}/usr/include"
3030
3031set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3032enabled cross_compile || host_cc_default=$cc
3033set_default host_cc
3034
3035if ! $pkg_config --version >/dev/null 2>&1; then
3036 warn "$pkg_config not found, library detection may fail."
3037 pkg_config=false
3038fi
3039
3040exesuf() {
3041 case $1 in
3042 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3043 esac
3044}
3045
3046EXESUF=$(exesuf $target_os)
3047HOSTEXESUF=$(exesuf $host_os)
3048
3049# set temporary file name
3050: ${TMPDIR:=$TEMPDIR}
3051: ${TMPDIR:=$TMP}
3052: ${TMPDIR:=/tmp}
3053
3054if ! check_cmd mktemp -u XXXXXX; then
3055 # simple replacement for missing mktemp
3056 # NOT SAFE FOR GENERAL USE
3057 mktemp(){
3058 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3059 echo "$tmpname"
3060 mkdir "$tmpname"
3061 }
3062fi
3063
3064AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3065 die "Unable to create temporary directory in $TMPDIR."
3066
3067tmpfile(){
3068 tmp="${AVTMPDIR}/test"$2
3069 (set -C; exec > $tmp) 2> /dev/null ||
3070 die "Unable to create temporary file in $AVTMPDIR."
3071 eval $1=$tmp
3072}
3073
3074trap 'rm -rf -- "$AVTMPDIR"' EXIT
3075trap 'exit 2' INT
3076
3077tmpfile TMPASM .asm
3078tmpfile TMPC .c
3079tmpfile TMPE $EXESUF
3080tmpfile TMPH .h
3081tmpfile TMPO .o
3082tmpfile TMPS .S
3083tmpfile TMPSH .sh
3084tmpfile TMPV .ver
3085
3086unset -f mktemp
3087
3088chmod +x $TMPE
3089
3090# make sure we can execute files in $TMPDIR
3091cat > $TMPSH 2>> $logfile <<EOF
3092#! /bin/sh
3093EOF
3094chmod +x $TMPSH >> $logfile 2>&1
3095if ! $TMPSH >> $logfile 2>&1; then
3096 cat <<EOF
3097Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3098variable to another directory and make sure that it is not mounted noexec.
3099EOF
3100 die "Sanity test failed."
3101fi
3102
3103armasm_flags(){
3104 for flag; do
3105 case $flag in
3106 # Filter out MSVC cl.exe options from cflags that shouldn't
3107 # be passed to gas-preprocessor
3108 -M[TD]*) ;;
3109 *) echo $flag ;;
3110 esac
3111 done
3112}
3113
3114cparser_flags(){
3115 for flag; do
3116 case $flag in
3117 -Wno-switch) echo -Wno-switch-enum ;;
3118 -Wno-format-zero-length) ;;
3119 -Wdisabled-optimization) ;;
3120 -Wno-pointer-sign) echo -Wno-other ;;
3121 *) echo $flag ;;
3122 esac
3123 done
3124}
3125
3126msvc_common_flags(){
3127 for flag; do
3128 case $flag in
3129 # In addition to specifying certain flags under the compiler
3130 # specific filters, they must be specified here as well or else the
3131 # generic catch all at the bottom will print the original flag.
3132 -Wall) ;;
3133 -Wextra) ;;
3134 -std=c99) ;;
3135 # Common flags
3136 -fomit-frame-pointer) ;;
3137 -g) echo -Z7 ;;
3138 -fno-math-errno) ;;
3139 -fno-common) ;;
3140 -fno-signed-zeros) ;;
3141 -fPIC) ;;
3142 -mthumb) ;;
3143 -march=*) ;;
3144 -lz) echo zlib.lib ;;
3145 -lx264) echo libx264.lib ;;
3146 -l*) echo ${flag#-l}.lib ;;
3147 -L*) echo -libpath:${flag#-L} ;;
3148 *) echo $flag ;;
3149 esac
3150 done
3151}
3152
3153msvc_flags(){
3154 msvc_common_flags "$@"
3155 for flag; do
3156 case $flag in
3157 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3158 -wd4554 ;;
3159 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3160 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3161 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3162 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3163 esac
3164 done
3165}
3166
3167icl_flags(){
3168 msvc_common_flags "$@"
3169 for flag; do
3170 case $flag in
3171 # Despite what Intel's documentation says -Wall, which is supported
3172 # on Windows, does enable remarks so disable them here.
3173 -Wall) echo $flag -Qdiag-disable:remark ;;
3174 -std=c99) echo -Qstd=c99 ;;
3175 esac
3176 done
3177}
3178
3179suncc_flags(){
3180 for flag; do
3181 case $flag in
3182 -march=*|-mcpu=*)
3183 case "${flag#*=}" in
3184 native) echo -xtarget=native ;;
3185 v9|niagara) echo -xarch=sparc ;;
3186 ultrasparc) echo -xarch=sparcvis ;;
3187 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3188 i586|pentium) echo -xchip=pentium ;;
3189 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3190 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3191 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3192 pentium4*) echo -xtarget=pentium4 ;;
3193 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3194 *-sse3) echo -xarch=sse3 ;;
3195 core2) echo -xarch=ssse3 -xchip=core2 ;;
3196 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3197 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3198 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3199 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3200 k8|opteron|athlon64|athlon-fx)
3201 echo -xarch=sse2a ;;
3202 athlon*) echo -xarch=pentium_proa ;;
3203 esac
3204 ;;
3205 -std=c99) echo -xc99 ;;
3206 -fomit-frame-pointer) echo -xregs=frameptr ;;
3207 -fPIC) echo -KPIC -xcode=pic32 ;;
3208 -W*,*) echo $flag ;;
3209 -f*-*|-W*|-mimpure-text) ;;
3210 -shared) echo -G ;;
3211 *) echo $flag ;;
3212 esac
3213 done
3214}
3215
3216probe_cc(){
3217 pfx=$1
3218 _cc=$2
3219
3220 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3221 unset _ld_o _ldflags _ld_lib _ld_path
3222 unset _depflags _DEPCMD _DEPFLAGS
3223 _flags_filter=echo
3224
3225 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3226 _type=llvm_gcc
3227 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3228 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3229 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3230 _cflags_speed='-O3'
3231 _cflags_size='-Os'
3232 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3233 _type=gcc
3234 gcc_version=$($_cc --version | head -n1)
3235 gcc_basever=$($_cc -dumpversion)
3236 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3237 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3238 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3239 if ! $_cc -dumpversion | grep -q '^2\.'; then
3240 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3241 fi
3242 _cflags_speed='-O3'
3243 _cflags_size='-Os'
3244 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3245 _type=icc
3246 _ident=$($_cc --version | head -n1)
3247 _depflags='-MMD'
3248 _cflags_speed='-O3'
3249 _cflags_size='-Os'
3250 _cflags_noopt='-O1'
3251 elif $_cc -v 2>&1 | grep -q xlc; then
3252 _type=xlc
3253 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3254 _cflags_speed='-O5'
3255 _cflags_size='-O5 -qcompact'
3256 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3257 test -d "$sysroot" || die "No valid sysroot specified."
3258 _type=armcc
3259 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3260 armcc_conf="$PWD/armcc.conf"
3261 $_cc --arm_linux_configure \
3262 --arm_linux_config_file="$armcc_conf" \
3263 --configure_sysroot="$sysroot" \
3264 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3265 die "Error creating armcc configuration file."
3266 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3267 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3268 as_default="${cross_prefix}gcc"
3269 _depflags='-MMD'
3270 _cflags_speed='-O3'
3271 _cflags_size='-Os'
3272 elif $_cc -v 2>&1 | grep -q clang; then
3273 _type=clang
3274 _ident=$($_cc --version 2>/dev/null | head -n1)
3275 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3276 _cflags_speed='-O3'
3277 _cflags_size='-Os'
3278 elif $_cc -V 2>&1 | grep -q Sun; then
3279 _type=suncc
3280 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3281 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3282 _DEPFLAGS='-xM1 -xc99'
3283 _ldflags='-std=c99'
3284 _cflags_speed='-O5'
3285 _cflags_size='-O5 -xspace'
3286 _flags_filter=suncc_flags
3287 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3288 _type=pathscale
3289 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3290 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3291 _cflags_speed='-O2'
3292 _cflags_size='-Os'
3293 _flags_filter='filter_out -Wdisabled-optimization'
3294 elif $_cc -v 2>&1 | grep -q Open64; then
3295 _type=open64
3296 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3297 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3298 _cflags_speed='-O2'
3299 _cflags_size='-Os'
3300 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3301 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3302 _type=armasm
3303 _ident=$($_cc | head -n1)
3304 # 4509: "This form of conditional instruction is deprecated"
3305 _flags="-nologo -ignore 4509"
3306 _flags_filter=armasm_flags
3307 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3308 _type=msvc
3309 _ident=$($_cc 2>&1 | head -n1)
3310 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3311 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3312 _cflags_speed="-O2"
3313 _cflags_size="-O1"
3314 _cflags_noopt="-O1"
3315 if $_cc -nologo- 2>&1 | grep -q Linker; then
3316 _ld_o='-out:$@'
3317 else
3318 _ld_o='-Fe$@'
3319 fi
3320 _cc_o='-Fo$@'
3321 _cc_e='-P -Fi$@'
3322 _flags_filter=msvc_flags
3323 _ld_lib='lib%.a'
3324 _ld_path='-libpath:'
3325 _flags='-nologo'
3326 elif $_cc 2>&1 | grep -q Intel; then
3327 _type=icl
3328 _ident=$($_cc 2>&1 | head -n1)
3329 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3330 # Not only is O3 broken on 13.x+ but it is slower on all previous
3331 # versions (tested) as well.
3332 _cflags_speed="-O2"
3333 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3334 if $_cc 2>&1 | grep -q Linker; then
3335 _ld_o='-out:$@'
3336 else
3337 _ld_o='-Fe$@'
3338 fi
3339 _cc_o='-Fo$@'
3340 _cc_e='-P'
3341 _flags_filter=icl_flags
3342 _ld_lib='lib%.a'
3343 _ld_path='-libpath:'
3344 # -Qdiag-error to make icl error when seeing certain unknown arguments
3345 _flags='-nologo -Qdiag-error:4044,10157'
3346 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3347 # with MSVC which enables it by default.
3348 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3349 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3350 # lld can emulate multiple different linkers; in ms link.exe mode,
3351 # the -? parameter gives the help output which contains an identifyable
3352 # string, while it gives an error in other modes.
3353 _type=lld-link
3354 # The link.exe mode doesn't have a switch for getting the version,
3355 # but we can force it back to gnu mode and get the version from there.
3356 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3357 _ld_o='-out:$@'
3358 _flags_filter=msvc_flags
3359 _ld_lib='lib%.a'
3360 _ld_path='-libpath:'
3361 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3362 _type=cparser
3363 _ident=$($_cc --version | head -n1)
3364 _depflags='-MMD'
3365 _cflags_speed='-O4'
3366 _cflags_size='-O2'
3367 _flags_filter=cparser_flags
3368 fi
3369
3370 eval ${pfx}_type=\$_type
3371 eval ${pfx}_ident=\$_ident
3372}
3373
3374set_ccvars(){
3375 eval ${1}_C=\${_cc_c-\${${1}_C}}
3376 eval ${1}_E=\${_cc_e-\${${1}_E}}
3377 eval ${1}_O=\${_cc_o-\${${1}_O}}
3378
3379 if [ -n "$_depflags" ]; then
3380 eval ${1}_DEPFLAGS=\$_depflags
3381 else
3382 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3383 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3384 eval DEP${1}FLAGS=\$_flags
3385 fi
3386}
3387
3388probe_cc cc "$cc"
3389cflags_filter=$_flags_filter
3390cflags_speed=$_cflags_speed
3391cflags_size=$_cflags_size
3392cflags_noopt=$_cflags_noopt
3393add_cflags $_flags $_cflags
3394cc_ldflags=$_ldflags
3395set_ccvars CC
3396
3397probe_cc hostcc "$host_cc"
3398host_cflags_filter=$_flags_filter
3399host_cflags_speed=$_cflags_speed
3400add_host_cflags $_flags $_cflags
3401set_ccvars HOSTCC
3402
3403test -n "$cc_type" && enable $cc_type ||
3404 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3405
3406: ${as_default:=$cc}
3407: ${objcc_default:=$cc}
3408: ${dep_cc_default:=$cc}
3409: ${ld_default:=$cc}
3410: ${host_ld_default:=$host_cc}
3411set_default ar as objcc dep_cc ld host_ld
3412
3413probe_cc as "$as"
3414asflags_filter=$_flags_filter
3415add_asflags $_flags $_cflags
3416set_ccvars AS
3417
3418probe_cc objcc "$objcc"
3419objcflags_filter=$_flags_filter
3420add_objcflags $_flags $_cflags
3421set_ccvars OBJC
3422
3423probe_cc ld "$ld"
3424ldflags_filter=$_flags_filter
3425add_ldflags $_flags $_ldflags
3426test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3427LD_O=${_ld_o-$LD_O}
3428LD_LIB=${_ld_lib-$LD_LIB}
3429LD_PATH=${_ld_path-$LD_PATH}
3430
3431probe_cc hostld "$host_ld"
3432host_ldflags_filter=$_flags_filter
3433add_host_ldflags $_flags $_ldflags
3434HOSTLD_O=${_ld_o-$HOSTLD_O}
3435
3436if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3437 probe_cc depcc "$dep_cc"
3438 CCDEP=${_DEPCMD:-$DEPCMD}
3439 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3440 DEPCCFLAGS=$_flags
3441fi
3442
3443if $ar 2>&1 | grep -q Microsoft; then
3444 arflags="-nologo"
3445 ar_o='-out:$@'
3446else
3447 arflags="rc"
3448 ar_o='$@'
3449fi
3450
3451add_cflags $extra_cflags
3452add_objcflags $extra_objcflags
3453add_asflags $extra_cflags
3454
3455if test -n "$sysroot"; then
3456 case "$cc_type" in
3457 gcc|llvm_gcc|clang)
3458 add_cppflags --sysroot="$sysroot"
3459 add_ldflags --sysroot="$sysroot"
3460 ;;
3461 esac
3462fi
3463
3464if test "$cpu" = host; then
3465 enabled cross_compile &&
3466 die "--cpu=host makes no sense when cross-compiling."
3467
3468 case "$cc_type" in
3469 gcc|llvm_gcc)
3470 check_native(){
3471 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3472 sed -n "/cc1.*$1=/{
3473 s/.*$1=\\([^ ]*\\).*/\\1/
3474 p
3475 q
3476 }" $TMPE
3477 }
3478 cpu=$(check_native -march || check_native -mcpu)
3479 ;;
3480 esac
3481
3482 test "${cpu:-host}" = host &&
3483 die "--cpu=host not supported with compiler $cc"
3484fi
3485
3486# Deal with common $arch aliases
3487case "$arch" in
3488 aarch64|arm64)
3489 arch="aarch64"
3490 ;;
3491 arm*)
3492 arch="arm"
3493 ;;
3494 mips*|IP*)
3495 case "$arch" in
3496 *el)
3497 add_cppflags -EL
3498 add_ldflags -EL
3499 ;;
3500 *eb)
3501 add_cppflags -EB
3502 add_ldflags -EB
3503 ;;
3504 esac
3505 arch="mips"
3506 ;;
3507 parisc*|hppa*)
3508 arch="parisc"
3509 ;;
3510 "Power Macintosh"|ppc*|powerpc*)
3511 arch="ppc"
3512 ;;
3513 s390|s390x)
3514 arch="s390"
3515 ;;
3516 sh4|sh)
3517 arch="sh4"
3518 ;;
3519 sun4u|sparc*)
3520 arch="sparc"
3521 ;;
3522 tilegx|tile-gx)
3523 arch="tilegx"
3524 ;;
3525 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3526 arch="x86"
3527 ;;
3528esac
3529
3530is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3531enable $arch
3532
3533# Add processor-specific flags
3534if enabled aarch64; then
3535
3536 case $cpu in
3537 armv*)
3538 cpuflags="-march=$cpu"
3539 ;;
3540 *)
3541 cpuflags="-mcpu=$cpu"
3542 ;;
3543 esac
3544
3545elif enabled alpha; then
3546
3547 cpuflags="-mcpu=$cpu"
3548
3549elif enabled arm; then
3550
3551 check_arm_arch() {
3552 check_cpp_condition stddef.h \
3553 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3554 $cpuflags
3555 }
3556
3557 probe_arm_arch() {
3558 if check_arm_arch 4; then echo armv4
3559 elif check_arm_arch 4T; then echo armv4t
3560 elif check_arm_arch 5; then echo armv5
3561 elif check_arm_arch 5E; then echo armv5e
3562 elif check_arm_arch 5T; then echo armv5t
3563 elif check_arm_arch 5TE; then echo armv5te
3564 elif check_arm_arch 5TEJ; then echo armv5te
3565 elif check_arm_arch 6; then echo armv6
3566 elif check_arm_arch 6J; then echo armv6j
3567 elif check_arm_arch 6K; then echo armv6k
3568 elif check_arm_arch 6Z; then echo armv6z
3569 elif check_arm_arch 6ZK; then echo armv6zk
3570 elif check_arm_arch 6T2; then echo armv6t2
3571 elif check_arm_arch 7; then echo armv7
3572 elif check_arm_arch 7A 7_A; then echo armv7-a
3573 elif check_arm_arch 7S; then echo armv7-a
3574 elif check_arm_arch 7R 7_R; then echo armv7-r
3575 elif check_arm_arch 7M 7_M; then echo armv7-m
3576 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3577 elif check_arm_arch 8A 8_A; then echo armv8-a
3578 fi
3579 }
3580
3581 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3582
3583 case $cpu in
3584 armv*)
3585 cpuflags="-march=$cpu"
3586 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3587 ;;
3588 *)
3589 cpuflags="-mcpu=$cpu"
3590 case $cpu in
3591 cortex-a*) subarch=armv7a ;;
3592 cortex-r*) subarch=armv7r ;;
3593 cortex-m*) enable thumb; subarch=armv7m ;;
3594 arm11*) subarch=armv6 ;;
3595 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3596 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3597 *) subarch=$(probe_arm_arch) ;;
3598 esac
3599 ;;
3600 esac
3601
3602 case "$subarch" in
3603 armv5t*) enable fast_clz ;;
3604 armv[6-8]*) enable fast_clz fast_unaligned ;;
3605 esac
3606
3607elif enabled avr32; then
3608
3609 case $cpu in
3610 ap7[02]0[0-2])
3611 subarch="avr32_ap"
3612 cpuflags="-mpart=$cpu"
3613 ;;
3614 ap)
3615 subarch="avr32_ap"
3616 cpuflags="-march=$cpu"
3617 ;;
3618 uc3[ab]*)
3619 subarch="avr32_uc"
3620 cpuflags="-mcpu=$cpu"
3621 ;;
3622 uc)
3623 subarch="avr32_uc"
3624 cpuflags="-march=$cpu"
3625 ;;
3626 esac
3627
3628elif enabled bfin; then
3629
3630 cpuflags="-mcpu=$cpu"
3631
3632elif enabled mips; then
3633
3634 cpuflags="-march=$cpu"
3635
3636elif enabled ppc; then
3637
3638 disable ldbrx
3639
3640 case $(tolower $cpu) in
3641 601|ppc601|powerpc601)
3642 cpuflags="-mcpu=601"
3643 disable altivec
3644 ;;
3645 603*|ppc603*|powerpc603*)
3646 cpuflags="-mcpu=603"
3647 disable altivec
3648 ;;
3649 604*|ppc604*|powerpc604*)
3650 cpuflags="-mcpu=604"
3651 disable altivec
3652 ;;
3653 g3|75*|ppc75*|powerpc75*)
3654 cpuflags="-mcpu=750"
3655 disable altivec
3656 ;;
3657 g4|745*|ppc745*|powerpc745*)
3658 cpuflags="-mcpu=7450"
3659 disable vsx
3660 ;;
3661 74*|ppc74*|powerpc74*)
3662 cpuflags="-mcpu=7400"
3663 disable vsx
3664 ;;
3665 g5|970|ppc970|powerpc970)
3666 cpuflags="-mcpu=970"
3667 disable vsx
3668 ;;
3669 power[3-6]*)
3670 cpuflags="-mcpu=$cpu"
3671 disable vsx
3672 ;;
3673 power[7-8]*)
3674 cpuflags="-mcpu=$cpu"
3675 enable ldbrx
3676 ;;
3677 cell)
3678 cpuflags="-mcpu=cell"
3679 enable ldbrx
3680 disable vsx
3681 ;;
3682 e500mc)
3683 cpuflags="-mcpu=e500mc"
3684 disable altivec
3685 ;;
3686 e500v2)
3687 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3688 disable altivec
3689 disable dcbzl
3690 ;;
3691 e500)
3692 cpuflags="-mcpu=8540 -mhard-float"
3693 disable altivec
3694 disable dcbzl
3695 ;;
3696 esac
3697
3698elif enabled sparc; then
3699
3700 case $cpu in
3701 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3702 cpuflags="-mcpu=$cpu"
3703 ;;
3704 ultrasparc*|niagara[234])
3705 cpuflags="-mcpu=$cpu"
3706 ;;
3707 esac
3708
3709elif enabled x86; then
3710
3711 case $cpu in
3712 i[345]86|pentium)
3713 cpuflags="-march=$cpu"
3714 disable i686
3715 disable mmx
3716 ;;
3717 # targets that do NOT support nopl and conditional mov (cmov)
3718 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3719 cpuflags="-march=$cpu"
3720 disable i686
3721 ;;
3722 # targets that do support nopl and conditional mov (cmov)
3723 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3724 cpuflags="-march=$cpu"
3725 enable i686
3726 enable fast_cmov
3727 ;;
3728 # targets that do support conditional mov but on which it's slow
3729 pentium4|pentium4m|prescott|nocona)
3730 cpuflags="-march=$cpu"
3731 enable i686
3732 disable fast_cmov
3733 ;;
3734 esac
3735
3736fi
3737
3738if [ "$cpu" != generic ]; then
3739 add_cflags $cpuflags
3740 add_asflags $cpuflags
3741 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3742fi
3743
3744# compiler sanity check
3745check_exec <<EOF
3746int main(void){ return 0; }
3747EOF
3748if test "$?" != 0; then
3749 echo "$cc is unable to create an executable file."
3750 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3751 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3752 echo "Only do this if you know what cross compiling means."
3753 fi
3754 die "C compiler test failed."
3755fi
3756
3757add_cppflags -D_ISOC99_SOURCE
3758
3759# some compilers silently accept -std=c11, so we also need to check that the
3760# version macro is defined properly
3761check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3762 add_cflags -std=c11 ||
3763 check_cflags -std=c99
3764
3765check_cppflags -D_FILE_OFFSET_BITS=64
3766check_cppflags -D_LARGEFILE_SOURCE
3767
3768add_host_cppflags -D_ISOC99_SOURCE
3769check_host_cflags -std=c99
3770check_host_cflags -Wall
3771check_host_cflags $host_cflags_speed
3772
3773check_64bit(){
3774 arch32=$1
3775 arch64=$2
3776 expr=${3:-'sizeof(void *) > 4'}
3777 check_code cc "" "int test[2*($expr) - 1]" &&
3778 subarch=$arch64 || subarch=$arch32
3779 enable $subarch
3780}
3781
3782case "$arch" in
3783 aarch64|alpha|ia64)
3784 enabled shared && enable_weak pic
3785 ;;
3786 mips)
3787 check_64bit mips mips64 '_MIPS_SIM > 1'
3788 enabled shared && enable_weak pic
3789 ;;
3790 parisc)
3791 check_64bit parisc parisc64
3792 enabled shared && enable_weak pic
3793 ;;
3794 ppc)
3795 check_64bit ppc ppc64
3796 enabled shared && enable_weak pic
3797 ;;
3798 s390)
3799 check_64bit s390 s390x
3800 enabled shared && enable_weak pic
3801 ;;
3802 sparc)
3803 check_64bit sparc sparc64
3804 enabled shared && enable_weak pic
3805 ;;
3806 x86)
3807 check_64bit x86_32 x86_64
3808 if enabled x86_64; then
3809 enabled shared && enable_weak pic
3810 objformat=elf64
3811 fi
3812 ;;
3813esac
3814
3815# OS specific
3816case $target_os in
3817 aix)
3818 SHFLAGS=-shared
3819 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3820 enabled shared && add_ldflags -Wl,-brtl
3821 arflags='-Xany -r -c'
3822 ;;
3823 android)
3824 disable symver
3825 enable section_data_rel_ro
3826 SLIB_INSTALL_NAME='$(SLIBNAME)'
3827 SLIB_INSTALL_LINKS=
3828 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3829 ;;
3830 haiku)
3831 prefix_default="/boot/common"
3832 network_extralibs="-lnetwork"
3833 host_extralibs=
3834 ;;
3835 sunos)
3836 SHFLAGS='-shared -Wl,-h,$$(@F)'
3837 enabled x86 && append SHFLAGS -mimpure-text
3838 network_extralibs="-lsocket -lnsl"
3839 # When using suncc to build, the Solaris linker will mark
3840 # an executable with each instruction set encountered by
3841 # the Solaris assembler. As our libraries contain their own
3842 # guards for processor-specific code, instead suppress
3843 # generation of the HWCAPS ELF section on Solaris x86 only.
3844 enabled_all suncc x86 &&
3845 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3846 add_ldflags -Wl,-M,mapfile
3847 nm_default='nm -P -g'
3848 version_script='-M'
3849 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3850 ;;
3851 netbsd)
3852 disable symver
3853 oss_indev_extralibs="-lossaudio"
3854 ;;
3855 openbsd|bitrig)
3856 disable symver
3857 SHFLAGS='-shared'
3858 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3859 SLIB_INSTALL_LINKS=
3860 oss_indev_extralibs="-lossaudio"
3861 ;;
3862 dragonfly)
3863 disable symver
3864 ;;
3865 freebsd)
3866 ;;
3867 bsd/os)
3868 add_extralibs -lpoll -lgnugetopt
3869 ;;
3870 darwin)
3871 enabled ppc && add_asflags -force_cpusubtype_ALL
3872 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3873 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3874 add_ldflags -Wl,-dynamic,-search_paths_first
3875 check_cflags -Werror=partial-availability
3876 SLIBSUF=".dylib"
3877 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3878 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3879 enabled x86_64 && objformat="macho64" || objformat="macho32"
3880 enabled_any pic shared ||
3881 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3882 check_header dispatch/dispatch.h &&
3883 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3884 if test -n "$sysroot"; then
3885 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3886 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3887 fi
3888 ;;
3889 msys*)
3890 die "Native MSYS builds are discouraged, please use the MINGW environment."
3891 ;;
3892 mingw32*|mingw64*)
3893 target_os=mingw32
3894 LIBTARGET=i386
3895 if enabled x86_64; then
3896 LIBTARGET="i386:x86-64"
3897 elif enabled arm; then
3898 LIBTARGET="arm"
3899 elif enabled aarch64; then
3900 LIBTARGET="arm64"
3901 fi
3902 if enabled shared; then
3903 # Cannot build both shared and static libs when using dllimport.
3904 disable static
3905 fi
3906 check_ldflags -Wl,--nxcompat
3907 check_ldflags -Wl,--dynamicbase
3908 shlibdir_default="$bindir_default"
3909 SLIBPREF=""
3910 SLIBSUF=".dll"
3911 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3912 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3913 SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3914 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3915 SLIB_INSTALL_LINKS=
3916 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3917 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3918 SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3919 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
3920 enabled x86_64 && objformat="win64" || objformat="win32"
3921 dlltool="${cross_prefix}dlltool"
3922 ranlib=:
3923 enable dos_paths
3924 ;;
3925 win32|win64)
3926 disable symver
3927 if enabled shared; then
3928 # Link to the import library instead of the normal static library
3929 # for shared libs.
3930 LD_LIB='%.lib'
3931 # Cannot build both shared and static libs with MSVC or icl.
3932 disable static
3933 fi
3934 shlibdir_default="$bindir_default"
3935 SLIBPREF=""
3936 SLIBSUF=".dll"
3937 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3938 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3939 SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3940 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3941 SLIB_INSTALL_LINKS=
3942 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3943 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3944 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3945 enabled x86_64 && objformat="win64" || objformat="win32"
3946 ranlib=:
3947 enable dos_paths
3948 ;;
3949 cygwin*)
3950 target_os=cygwin
3951 shlibdir_default="$bindir_default"
3952 SLIBPREF="cyg"
3953 SLIBSUF=".dll"
3954 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3955 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3956 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3957 SLIB_INSTALL_LINKS=
3958 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3959 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3960 enabled x86_64 && objformat="win64" || objformat="win32"
3961 enable dos_paths
3962 ;;
3963 *-dos|freedos|opendos)
3964 network_extralibs="-lsocket"
3965 objformat="coff"
3966 enable dos_paths
3967 add_cppflags -U__STRICT_ANSI__
3968 ;;
3969 linux)
3970 enable section_data_rel_ro
3971 ;;
3972 irix*)
3973 target_os=irix
3974 ranlib="echo ignoring ranlib"
3975 ;;
3976 os/2*)
3977 ln_s="cp -f"
3978 objformat="aout"
3979 add_cppflags -D_GNU_SOURCE
3980 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
3981 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3982 LIBSUF="_s.a"
3983 SLIBPREF=""
3984 SLIBSUF=".dll"
3985 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3986 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3987 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3988 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3989 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3990 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3991 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3992 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3993 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3994 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3995 enable dos_paths
3996 ;;
3997 gnu/kfreebsd)
3998 add_cppflags -D_BSD_SOURCE
3999 ;;
4000 gnu)
4001 ;;
4002 qnx)
4003 add_cppflags -D_QNX_SOURCE
4004 network_extralibs="-lsocket"
4005 ;;
4006 symbian)
4007 SLIBSUF=".dll"
4008 enable dos_paths
4009 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4010 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4011 add_ldflags -Wl,--target1-abs,--no-undefined \
4012 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4013 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4014 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4015 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4016 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4017 ;;
4018 minix)
4019 ;;
4020 none)
4021 ;;
4022 *)
4023 die "Unknown OS '$target_os'."
4024 ;;
4025esac
4026
4027# determine libc flavour
4028
4029probe_libc(){
4030 pfx=$1
4031 pfx_no_=${pfx%_}
4032 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4033 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4034 eval ${pfx}libc_type=uclibc
4035 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4036 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4037 eval ${pfx}libc_type=glibc
4038 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4039 # MinGW headers can be installed on Cygwin, so check for newlib first.
4040 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4041 eval ${pfx}libc_type=newlib
4042 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4043 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4044 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4045 eval ${pfx}libc_type=mingw64
4046 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4047 eval test \$${pfx_no_}cc_type = "gcc" &&
4048 add_${pfx}cppflags -D__printf__=__gnu_printf__
4049 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4050 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4051 eval ${pfx}libc_type=mingw32
4052 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4053 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4054 die "ERROR: MinGW32 runtime version must be >= 3.15."
4055 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4056 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4057 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4058 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4059 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4060 eval test \$${pfx_no_}cc_type = "gcc" &&
4061 add_${pfx}cppflags -D__printf__=__gnu_printf__
4062 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4063 eval ${pfx}libc_type=msvcrt
4064 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4065 if [ "$pfx" = host_ ]; then
4066 add_host_cppflags -Dsnprintf=_snprintf
4067 else
4068 add_compat strtod.o strtod=avpriv_strtod
4069 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4070 _snprintf=avpriv_snprintf \
4071 vsnprintf=avpriv_vsnprintf
4072 fi
4073 fi
4074 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4075 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4076 # 0x601 by default unless something else is set by the user.
4077 # This can easily lead to us detecting functions only present
4078 # in such new versions and producing binaries requiring windows 7.0.
4079 # Therefore explicitly set the default to XP unless the user has
4080 # set something else on the command line.
4081 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4082 # family. For these cases, configure is free to use any functions
4083 # found in the SDK headers by default. (Alternatively, we could force
4084 # _WIN32_WINNT to 0x0602 in that case.)
4085 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4086 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4087#ifdef WINAPI_FAMILY
4088#include <winapifamily.h>
4089#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4090#error not desktop
4091#endif
4092#endif
4093EOF
4094 if [ "$pfx" = "" ]; then
4095 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4096 fi
4097 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4098 eval ${pfx}libc_type=klibc
4099 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4100 eval ${pfx}libc_type=bionic
4101 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4102 eval ${pfx}libc_type=solaris
4103 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4104 else
4105 eval ${pfx}libc_type=default
4106 add_${pfx}cppflags -D_DEFAULT_SOURCE
4107 fi
4108 eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
4109}
4110
4111probe_libc
4112probe_libc host_
4113
4114# hacks for compiler/libc/os combinations
4115
4116case $libc_type in
4117 bionic)
4118 add_compat strtod.o strtod=avpriv_strtod
4119 ;;
4120esac
4121
4122check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4123 add_cppflags '-I\$(SRC_PATH)/compat/float'
4124
4125check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4126
4127set_default $PATHS_LIST
4128set_default nm
4129
4130disabled optimizations || check_cflags -fomit-frame-pointer
4131
4132enable_weak_pic() {
4133 disabled pic && return
4134 enable pic
4135 add_cppflags -DPIC
4136 case "$target_os" in
4137 mingw*|cygwin*|win*)
4138 ;;
4139 *)
4140 add_cflags -fPIC
4141 add_asflags -fPIC
4142 ;;
4143 esac
4144}
4145
4146enabled pic && enable_weak_pic
4147
4148check_cc <<EOF || die "Symbol mangling check failed."
4149int ff_extern;
4150EOF
4151sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4152extern_prefix=${sym%%ff_extern*}
4153
4154! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4155
4156for restrict_keyword in restrict __restrict__ __restrict ""; do
4157 check_cc <<EOF && break
4158void foo(char * $restrict_keyword p);
4159EOF
4160done
4161
4162check_cc <<EOF && enable pragma_deprecated
4163void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4164EOF
4165
4166check_cc <<EOF || die "endian test failed"
4167unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4168EOF
4169od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4170
4171check_gas() {
4172 log "check_gas using '$as' as AS"
4173 # :vararg is used on aarch64, arm and ppc altivec
4174 check_as <<EOF || return 1
4175.macro m n, y:vararg=0
4176\n: .int \y
4177.endm
4178m x
4179EOF
4180 # .altmacro is only used in arm asm
4181 ! enabled arm || check_as <<EOF || return 1
4182.altmacro
4183EOF
4184 enable gnu_as
4185 return 0
4186}
4187
4188if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4189 nogas=:
4190 enabled_any arm aarch64 && nogas=die
4191 enabled_all ppc altivec && nogas=warn
4192 as_noop=-v
4193
4194 case $as_type in
4195 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4196 gcc) gaspp_as_type=gas ;;
4197 *) gaspp_as_type=$as_type ;;
4198 esac
4199
4200 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4201
4202 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4203 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4204
4205 if ! check_gas ; then
4206 as=${gas:=$as}
4207 check_gas || \
4208 $nogas "GNU assembler not found, install/update gas-preprocessor"
4209 fi
4210
4211 check_as <<EOF && enable as_func
4212.func test
4213.endfunc
4214EOF
4215fi
4216
4217check_inline_asm inline_asm_labels '"1:\n"'
4218
4219if enabled aarch64; then
4220 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4221 # internal assembler in clang 3.3 does not support this instruction
4222 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4223 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4224
4225 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4226
4227elif enabled alpha; then
4228
4229 check_cflags -mieee
4230
4231elif enabled arm; then
4232
4233 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4234 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4235 enabled thumb && check_cflags -mthumb || check_cflags -marm
4236
4237 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4238 enable vfp_args
4239 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4240 enable vfp_args
4241 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4242 case "${cross_prefix:-$cc}" in
4243 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4244 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4245__asm__ (".eabi_attribute 28, 1");
4246int main(void) { return 0; }
4247EOF
4248 esac
4249 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4250 fi
4251
4252 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4253 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4254 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4255 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4256 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4257 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4258
4259 [ $target_os = linux ] || [ $target_os = android ] ||
4260 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4261 $ARCH_EXT_LIST_ARM
4262
4263 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4264
4265 check_as <<EOF && enable as_arch_directive
4266.arch armv7-a
4267EOF
4268 check_as <<EOF && enable as_fpu_directive
4269.fpu neon
4270EOF
4271
4272 # llvm's integrated assembler supports .object_arch from llvm 3.5
4273 [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4274 check_as <<EOF && enable as_object_arch
4275.object_arch armv4
4276EOF
4277
4278 # MS armasm fails to assemble our PIC constructs
4279 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4280
4281elif enabled mips; then
4282
4283 # make sure that only one instruction set is enabled
4284 disable $ARCH_EXT_LIST_MIPS
4285
4286 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4287
4288 if enabled mips64; then
4289 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4290 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4291 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4292 else
4293 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4294 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4295 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4296 fi
4297
4298elif enabled parisc; then
4299
4300 if enabled gcc; then
4301 case $($cc -dumpversion) in
4302 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4303 esac
4304 fi
4305
4306elif enabled ppc; then
4307
4308 enable local_aligned_8 local_aligned_16 local_aligned_32
4309
4310 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4311 check_inline_asm ibm_asm '"add 0, 0, 0"'
4312 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4313 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4314
4315 if enabled altivec; then
4316 check_cflags -maltivec -mabi=altivec
4317
4318 # check if our compiler supports Motorola AltiVec C API
4319 check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
4320 vector signed int v2 = (vector signed int) { 1 };
4321 v1 = vec_add(v1, v2);" ||
4322 disable altivec
4323
4324 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4325 fi
4326
4327 if enabled vsx; then
4328 check_cflags -mvsx &&
4329 check_code cc altivec.h "int v[4] = { 0 };
4330 vector signed int v1 = vec_vsx_ld(0, v);" ||
4331 disable vsx
4332 fi
4333
4334 if enabled power8; then
4335 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4336 fi
4337
4338elif enabled x86; then
4339
4340 check_builtin rdtsc intrin.h "__rdtsc()"
4341 check_builtin mm_empty mmintrin.h "_mm_empty()"
4342
4343 enable local_aligned_8 local_aligned_16 local_aligned_32
4344
4345 # check whether EBP is available on x86
4346 # As 'i' is stored on the stack, this program will crash
4347 # if the base pointer is used to access it because the
4348 # base pointer is cleared in the inline assembly code.
4349 check_exec_crash <<EOF && enable ebp_available
4350volatile int i=0;
4351__asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4352return i;
4353EOF
4354
4355 # check whether EBX is available on x86
4356 check_inline_asm ebx_available '""::"b"(0)' &&
4357 check_inline_asm ebx_available '"":::"%ebx"'
4358
4359 # check whether xmm clobbers are supported
4360 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4361
4362 # check whether binutils is new enough to compile SSSE3/MMXEXT
4363 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4364 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4365
4366 probe_x86asm(){
4367 x86asmexe_probe=$1
4368 if check_cmd $x86asmexe_probe -v; then
4369 x86asmexe=$x86asmexe_probe
4370 x86asm_type=nasm
4371 x86asm_debug="-g -F dwarf"
4372 X86ASMDEP=
4373 X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4374 elif check_cmd $x86asmexe_probe --version; then
4375 x86asmexe=$x86asmexe_probe
4376 x86asm_type=yasm
4377 x86asm_debug="-g dwarf2"
4378 X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4379 X86ASM_DEPFLAGS=
4380 fi
4381 check_x86asm "movbe ecx, [5]" && enable x86asm
4382 }
4383
4384 if ! disabled_any asm mmx x86asm; then
4385 disable x86asm
4386 for program in $x86asmexe nasm yasm; do
4387 probe_x86asm $program && break
4388 done
4389 disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4390 X86ASMFLAGS="-f $objformat"
4391 enabled pic && append X86ASMFLAGS "-DPIC"
4392 test -n "$extern_prefix" && append X86ASMFLAGS "-DPREFIX"
4393 case "$objformat" in
4394 elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
4395 esac
4396
4397 check_x86asm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4398 check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4399 check_x86asm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4400 check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4401 check_x86asm "CPU amdnop" || disable cpunop
4402 fi
4403
4404 case "$cpu" in
4405 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4406 disable fast_clz
4407 ;;
4408 esac
4409
4410fi
4411
4412check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4413
4414check_ldflags -Wl,--as-needed
4415
4416if ! disabled network; then
4417 check_func getaddrinfo $network_extralibs
4418 check_func inet_aton $network_extralibs
4419
4420 check_type netdb.h "struct addrinfo"
4421 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4422 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4423 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4424 check_type poll.h "struct pollfd"
4425 check_type netinet/sctp.h "struct sctp_event_subscribe"
4426 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4427 check_type netinet/in.h "struct sockaddr_in6"
4428 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4429 check_type "sys/types.h sys/socket.h" socklen_t
4430
4431 # Prefer arpa/inet.h over winsock2
4432 if check_header arpa/inet.h ; then
4433 check_func closesocket
4434 elif check_header winsock2.h ; then
4435 check_func_headers winsock2.h closesocket -lws2 &&
4436 network_extralibs="-lws2" ||
4437 { check_func_headers winsock2.h closesocket -lws2_32 &&
4438 network_extralibs="-lws2_32"; } || disable winsock2_h network
4439 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4440
4441 check_type ws2tcpip.h socklen_t
4442 check_type ws2tcpip.h "struct addrinfo"
4443 check_type ws2tcpip.h "struct group_source_req"
4444 check_type ws2tcpip.h "struct ip_mreq_source"
4445 check_type ws2tcpip.h "struct ipv6_mreq"
4446 check_type winsock2.h "struct pollfd"
4447 check_struct winsock2.h "struct sockaddr" sa_len
4448 check_type ws2tcpip.h "struct sockaddr_in6"
4449 check_type ws2tcpip.h "struct sockaddr_storage"
4450 else
4451 disable network
4452 fi
4453fi
4454
4455check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4456check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4457check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4458check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4459
4460case "$custom_allocator" in
4461 jemalloc)
4462 # jemalloc by default does not use a prefix
4463 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4464 ;;
4465 tcmalloc)
4466 require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
4467 malloc_prefix=tc_
4468 ;;
4469esac
4470
4471check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4472check_func ${malloc_prefix}memalign && enable memalign
4473check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4474
4475check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4476 { check_lib clock_gettime time.h clock_gettime ||
4477 check_lib clock_gettime time.h clock_gettime -lrt; }
4478
4479check_func fcntl
4480check_func gethrtime
4481check_func getopt
4482check_func getrusage
4483check_func gettimeofday
4484check_func gmtime_r
4485check_func isatty
4486check_func localtime_r
4487check_func mkstemp
4488check_func mmap
4489check_func mprotect
4490# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4491check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
4492check_func sched_getaffinity
4493check_func setrlimit
4494check_func strerror_r
4495check_func sysconf
4496check_func sysctl
4497check_func usleep
4498
4499check_func_headers io.h setmode
4500check_func_headers mach/mach_time.h mach_absolute_time
4501check_func_headers stdlib.h getenv
4502
4503check_func_headers windows.h GetProcessAffinityMask
4504check_func_headers windows.h GetProcessTimes
4505check_func_headers windows.h GetSystemTimeAsFileTime
4506check_func_headers windows.h LoadLibrary
4507check_func_headers windows.h MapViewOfFile
4508check_func_headers windows.h SetConsoleTextAttribute
4509check_func_headers windows.h Sleep
4510check_func_headers windows.h VirtualAlloc
4511check_struct windows.h "CONDITION_VARIABLE" Ptr
4512
4513check_header direct.h
4514check_header dxgidebug.h
4515check_header dxva.h
4516check_header dxva2api.h
4517check_header io.h
4518check_header malloc.h
4519check_header poll.h
4520check_header sys/param.h
4521check_header sys/resource.h
4522check_header sys/select.h
4523check_header sys/time.h
4524check_header sys/un.h
4525check_header unistd.h
4526check_header valgrind/valgrind.h
4527check_header VideoDecodeAcceleration/VDADecoder.h
4528check_header windows.h
4529
4530# it seems there are versions of clang in some distros that try to use the
4531# gcc headers, which explodes for stdatomic
4532# so we also check that atomics actually work here
4533check_builtin stdatomic stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4534
4535check_lib ole32 "windows.h" CoTaskMemFree -lole32
4536check_lib shell32 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4537check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4538check_lib psapi "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4539
4540check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4541
4542check_type "cuviddec.h" "CUVIDH264PICPARAMS"
4543check_type "cuviddec.h" "CUVIDHEVCPICPARAMS"
4544check_struct "cuviddec.h" "CUVIDDECODECREATEINFO" bitDepthMinus8
4545
4546check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4547check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4548check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4549
4550check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
4551check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4552check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4553check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4554check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4555check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4556check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
4557check_type "va/va.h va/va_enc_vp8.h" "VAEncPictureParameterBufferVP8"
4558check_type "va/va.h va/va_enc_vp9.h" "VAEncPictureParameterBufferVP9"
4559
4560check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4561
4562if ! disabled w32threads && ! enabled pthreads; then
4563 check_lib w32threads "windows.h process.h" _beginthreadex
4564fi
4565
4566# check for some common methods of building with pthread support
4567# do this before the optional library checks as some of them require pthreads
4568if ! disabled pthreads && ! enabled w32threads; then
4569 if check_lib pthreads pthread.h pthread_join -pthread; then
4570 add_cflags -pthread
4571 elif check_lib pthreads pthread.h pthread_join -pthreads; then
4572 add_cflags -pthreads
4573 elif check_lib pthreads pthread.h pthread_join -lpthreadGC2; then
4574 :
4575 elif check_lib pthreads pthread.h pthread_join -lpthread; then
4576 :
4577 elif check_func pthread_join; then
4578 enable pthreads
4579 fi
4580 enabled pthreads &&
4581 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
4582fi
4583
4584disabled zlib || check_lib zlib zlib.h zlibVersion -lz
4585disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion -lbz2
4586
4587# On some systems dynamic loading requires no extra linker flags
4588check_lib libdl dlfcn.h dlopen || check_lib libdl dlfcn.h dlopen -ldl
4589
4590check_lib libm math.h sin -lm
4591
4592atan2f_args=2
4593ldexpf_args=2
4594powf_args=2
4595
4596for func in $MATH_FUNCS; do
4597 eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
4598done
4599
4600# these are off by default, so fail if requested and not available
4601
4602enabled amf &&
4603 check_cpp_condition "AMF/core/Version.h" \
4604 "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001" ||
4605 disable amf
4606enabled avisynth && require_header avisynth/avisynth_c.h
4607enabled avxsynth && require_header avxsynth/avxsynth_c.h
4608enabled cuda && require cuda cuda.h cuInit -lcuda
4609enabled cuvid && require cuvid cuviddec.h cuvidCreateDecoder -lnvcuvid
4610enabled frei0r && require_header frei0r.h
4611enabled gnutls && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init &&
4612 check_lib gmp gmp.h mpz_export -lgmp
4613enabled libbs2b && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
4614enabled libdc1394 && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
4615enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4616enabled libfaac && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4617enabled libfdk_aac && require_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4618enabled libfontconfig && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
4619enabled libfreetype && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4620enabled libgsm && require libgsm gsm.h gsm_create -lgsm
4621enabled libhdcd && require_pkg_config libhdcd libhdcd "hdcd/hdcd_simple.h" hdcd_new
4622enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4623enabled libkvazaar && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4624enabled libmfx && require_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit
4625enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4626enabled libnpp && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4627enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4628enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4629enabled libopencv && require_pkg_config libopencv opencv opencv/cv.h cvCreateImageHeader
4630enabled libopenh264 && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
4631enabled libopenjpeg && { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4632 require_pkg_config libopenjpeg libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4633enabled libopus && require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
4634enabled libpulse && require_pkg_config libpulse libpulse-simple pulse/simple.h pa_simple_new
4635enabled librtmp && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
4636enabled libschroedinger && require_pkg_config libschroedinger schroedinger-1.0 schroedinger/schro.h schro_init
4637enabled libsnappy && require libsnappy snappy-c.h snappy_compress -lsnappy
4638enabled libspeex && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
4639enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4640enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4641enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4642enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4643enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4644enabled libvpx && require_pkg_config libvpx "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version &&
4645 { enabled libvpx_vp8_decoder &&
4646 check_pkg_config libvpx_vp8_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx
4647 enabled libvpx_vp8_encoder &&
4648 check_pkg_config libvpx_vp8_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx
4649 enabled libvpx_vp9_decoder &&
4650 check_pkg_config libvpx_vp9_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx
4651 enabled libvpx_vp9_encoder &&
4652 check_pkg_config libvpx_vp9_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx
4653 disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder &&
4654 die "libvpx enabled but no supported decoders/encoders found"
4655 }
4656enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4657enabled libwebp && require_pkg_config libwebp libwebp webp/encode.h WebPGetEncoderVersion
4658enabled libx264 && require_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode &&
4659 require_cpp_condition x264.h "X264_BUILD >= 118" &&
4660 { check_cpp_condition x264.h "X264_MPEG2" &&
4661 enable libx262; }
4662enabled libx265 && require_pkg_config libx265 x265 x265.h x265_api_get &&
4663 require_cpp_condition x265.h "X265_BUILD >= 57"
4664enabled libxavs && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
4665enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4666enabled mmal && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4667 { ! enabled cross_compile &&
4668 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
4669 add_ldflags -L/opt/vc/lib/ &&
4670 check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
4671 die "ERROR: mmal not found" &&
4672 check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
4673enabled nvenc && require_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6"
4674enabled omx && require_header OMX_Core.h
4675enabled omx_rpi && { check_header OMX_Core.h ||
4676 { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||
4677 die "ERROR: OpenMAX IL headers not found"; } && enable omx
4678enabled openssl && { { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
4679 check_pkg_config openssl openssl openssl/ssl.h SSL_library_init; } ||
4680 check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4681 check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4682 check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4683 die "ERROR: openssl not found"; }
4684
4685# SDL adds some CFLAGS that should not be part of the general CFLAGS.
4686enabled avplay &&
4687 test_pkg_config sdl "sdl >= 1.2.1 sdl < 1.3.0" SDL_events.h SDL_PollEvent
4688
4689! disabled pod2man && check_cmd pod2man --help && enable pod2man || disable pod2man
4690! disabled texi2html && check_cmd texi2html -version && enable texi2html || disable texi2html
4691
4692check_header linux/fb.h
4693check_header linux/videodev2.h
4694check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4695
4696check_header AVFoundation/AVFoundation.h
4697
4698check_header sys/videoio.h
4699
4700check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
4701check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
4702# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4703# w32api 3.12 had it defined wrong
4704check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4705
4706# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4707check_header "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h" ||
4708 check_header "machine/ioctl_meteor.h machine/ioctl_bt848.h" ||
4709 check_header "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
4710 check_header "dev/ic/bt8xx.h"
4711
4712check_header sys/soundcard.h
4713
4714enabled alsa_indev &&
4715 check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
4716
4717enabled libjack &&
4718 require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
4719
4720enabled sndio_indev && check_lib sndio sndio.h sio_open -lsndio
4721
4722if enabled libcdio; then
4723 check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4724 check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4725 die "ERROR: No usable libcdio/cdparanoia found"
4726fi
4727
4728if enabled libxcb; then
4729 require_pkg_config libxcb xcb xcb/xcb.h xcb_connect
4730 require_pkg_config libxcb_shape xcb-shape xcb/shape.h xcb_shape_rectangles
4731 disabled libxcb_shm ||
4732 check_pkg_config libxcb_shm xcb-shm xcb/shm.h xcb_shm_attach
4733 disabled libxcb_xfixes ||
4734 check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
4735fi
4736
4737# d3d11va requires linking directly to dxgi and d3d11 if not building for
4738# the desktop api partition
4739check_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
4740#ifdef WINAPI_FAMILY
4741#include <winapifamily.h>
4742#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4743#error desktop, not uwp
4744#else
4745// WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
4746#endif
4747#else
4748#error no family set
4749#endif
4750EOF
4751
4752enabled vaapi && require vaapi va/va.h vaInitialize -lva
4753
4754enabled vaapi &&
4755 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4756 disable vaapi
4757
4758enabled vaapi &&
4759 check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm
4760
4761enabled vaapi &&
4762 check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11
4763
4764enabled vaapi &&
4765 check_cpp_condition "va/va.h" "VA_CHECK_VERSION(1, 0, 0)" &&
4766 enable vaapi_1
4767
4768enabled vdpau &&
4769 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4770 disable vdpau
4771
4772enabled vdpau &&
4773 check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
4774
4775enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4776
4777# add some useful compiler flags if supported
4778check_cflags -Wdeclaration-after-statement
4779check_cflags -Wall
4780check_cflags -Wdisabled-optimization
4781check_cflags -Wpointer-arith
4782check_cflags -Wredundant-decls
4783check_cflags -Wwrite-strings
4784check_cflags -Wtype-limits
4785check_cflags -Wundef
4786check_cflags -Wmissing-prototypes
4787check_cflags -Wstrict-prototypes
4788
4789if enabled extra_warnings; then
4790 check_cflags -Wcast-qual
4791 check_cflags -Wextra
4792 check_cflags -Wpedantic
4793fi
4794
4795check_disable_warning(){
4796 warning_flag=-W${1#-Wno-}
4797 test_cflags $warning_flag && add_cflags $1
4798}
4799
4800check_disable_warning -Wno-parentheses
4801check_disable_warning -Wno-switch
4802check_disable_warning -Wno-format-zero-length
4803check_disable_warning -Wno-pointer-sign
4804
4805check_disable_warning_headers(){
4806 warning_flag=-W${1#-Wno-}
4807 test_cflags $warning_flag && add_cflags_headers $1
4808}
4809
4810check_disable_warning_headers -Wno-deprecated-declarations
4811check_disable_warning_headers -Wno-unused-variable
4812
4813check_objcflags -fobjc-arc && enable objc_arc
4814
4815check_cc <<EOF && enable blocks_extension
4816void (^block)(void);
4817EOF
4818
4819# add some linker flags
4820check_ldflags -Wl,--warn-common
4821check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4822enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
4823test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4824
4825# add some strip flags
4826# -wN '..@*' is more selective than -x, but not available everywhere.
4827check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4828
4829enabled neon_clobber_test &&
4830 check_ldflags -Wl,--wrap,avcodec_open2 \
4831 -Wl,--wrap,avcodec_decode_audio4 \
4832 -Wl,--wrap,avcodec_decode_video2 \
4833 -Wl,--wrap,avcodec_decode_subtitle2 \
4834 -Wl,--wrap,avcodec_encode_audio2 \
4835 -Wl,--wrap,avcodec_encode_video2 \
4836 -Wl,--wrap,avcodec_encode_subtitle \
4837 -Wl,--wrap,avcodec_send_packet \
4838 -Wl,--wrap,avcodec_receive_packet \
4839 -Wl,--wrap,avcodec_send_frame \
4840 -Wl,--wrap,avcodec_receive_frame \
4841 -Wl,--wrap,avresample_convert ||
4842 disable neon_clobber_test
4843
4844enabled xmm_clobber_test &&
4845 check_ldflags -Wl,--wrap,avcodec_open2 \
4846 -Wl,--wrap,avcodec_decode_audio4 \
4847 -Wl,--wrap,avcodec_decode_video2 \
4848 -Wl,--wrap,avcodec_decode_subtitle2 \
4849 -Wl,--wrap,avcodec_encode_audio2 \
4850 -Wl,--wrap,avcodec_encode_video2 \
4851 -Wl,--wrap,avcodec_encode_subtitle \
4852 -Wl,--wrap,avcodec_send_packet \
4853 -Wl,--wrap,avcodec_receive_packet \
4854 -Wl,--wrap,avcodec_send_frame \
4855 -Wl,--wrap,avcodec_receive_frame \
4856 -Wl,--wrap,avresample_convert \
4857 -Wl,--wrap,sws_scale ||
4858 disable xmm_clobber_test
4859
4860check_ld <<EOF && enable proper_dce
4861extern const int array[512];
4862static inline int func(void) { return array[0]; }
4863int main(void) { return 0; }
4864EOF
4865
4866if enabled proper_dce; then
4867 echo "X { local: *; };" > $TMPV
4868 if test_ldflags -Wl,${version_script},$TMPV; then
4869 append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
4870 quotes='""'
4871 check_cc <<EOF && enable symver_asm_label
4872void ff_foo(void) __asm__ ("av_foo@VERSION");
4873void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4874EOF
4875 check_cc <<EOF && enable symver_gnu_asm
4876__asm__(".symver ff_foo,av_foo@VERSION");
4877void ff_foo(void) {}
4878EOF
4879 fi
4880fi
4881
4882if [ -z "$optflags" ]; then
4883 if enabled small; then
4884 optflags=$cflags_size
4885 elif enabled optimizations; then
4886 optflags=$cflags_speed
4887 else
4888 optflags=$cflags_noopt
4889 fi
4890fi
4891
4892check_optflags(){
4893 check_cflags "$@"
4894 enabled lto && check_ldflags "$@"
4895}
4896
4897check_optflags $optflags
4898check_optflags -fno-math-errno
4899check_optflags -fno-signed-zeros
4900
4901if enabled lto; then
4902 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4903 check_cflags -flto
4904 check_ldflags -flto $cpuflags
4905fi
4906
4907if enabled icc; then
4908 # Just warnings, no remarks
4909 check_cflags -w1
4910 # -wd: Disable following warnings
4911 # 144, 167, 556: -Wno-pointer-sign
4912 # 1292: attribute "foo" ignored
4913 # 1419: external declaration in primary source file
4914 # 10006: ignoring unknown option -fno-signed-zeros
4915 # 10148: ignoring unknown option -Wno-parentheses
4916 # 10156: ignoring option '-W'; no argument required
4917 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4918 # 11030: Warning unknown option --as-needed
4919 # 10156: ignoring option '-export'; no argument required
4920 check_ldflags -wd10156,11030
4921 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4922 enable ebp_available
4923 if enabled x86_32; then
4924 icc_version=$($cc -dumpversion)
4925 test ${icc_version%%.*} -ge 11 &&
4926 check_cflags -falign-stack=maintain-16-byte ||
4927 disable aligned_stack
4928 fi
4929elif enabled gcc; then
4930 check_optflags -fno-tree-vectorize
4931 check_cflags -Werror=implicit-function-declaration
4932 check_cflags -Werror=missing-prototypes
4933 check_cflags -Werror=return-type
4934 check_cflags -Werror=declaration-after-statement
4935 check_cflags -Werror=vla
4936 check_cflags -Werror=format-security
4937 check_cflags -fdiagnostics-color=auto
4938 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4939elif enabled llvm_gcc; then
4940 check_cflags -mllvm -stack-alignment=16
4941elif enabled clang; then
4942 check_cflags -mllvm -stack-alignment=16
4943 check_cflags -Qunused-arguments
4944 check_cflags -Werror=implicit-function-declaration
4945 check_cflags -Werror=missing-prototypes
4946 check_cflags -Werror=return-type
4947elif enabled cparser; then
4948 add_cflags -Wno-missing-variable-declarations
4949 add_cflags -Wno-empty-statement
4950elif enabled armcc; then
4951 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4952 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4953 # 2523: use of inline assembly is deprecated
4954 add_cflags -W${armcc_opt},--diag_suppress=2523
4955 add_cflags -W${armcc_opt},--diag_suppress=1207
4956 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4957 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4958 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4959 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4960elif enabled pathscale; then
4961 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4962 disable inline_asm
4963elif enabled_any msvc icl; then
4964 enabled x86_32 && disable aligned_stack
4965 enabled_all x86_32 debug && add_cflags -Oy-
4966 enabled debug && add_ldflags -debug
4967 enable pragma_deprecated
4968 if enabled icl; then
4969 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4970 # (correctly) on icl 13.x.
4971 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4972 add_cflags -Qansi-alias
4973 # icl will pass the inline asm tests but inline asm is currently
4974 # not supported (build will fail)
4975 disable inline_asm
4976 fi
4977 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4978 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4979 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
4980 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
4981 # (as it ends up if the restrict redefine is done before including stdlib.h), while
4982 # MSVC 2013 and newer can handle it fine.
4983 # If this declspec fails, force including stdlib.h before the restrict redefinition
4984 # happens in config.h.
4985 if [ $restrict_keyword != restrict ]; then
4986 check_cc <<EOF || add_cflags -FIstdlib.h
4987__declspec($restrict_keyword) void *foo(int);
4988EOF
4989 fi
4990fi
4991
4992for pfx in "" host_; do
4993 varname=${pfx%_}cc_type
4994 eval "type=\$$varname"
4995 if [ "$type" = "msvc" ]; then
4996 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
4997static inline int foo(int a) { return a; }
4998EOF
4999 fi
5000done
5001
5002case $as_type in
5003 clang)
5004 add_asflags -Qunused-arguments
5005 ;;
5006esac
5007
5008case $ld_type in
5009 clang)
5010 check_ldflags -Qunused-arguments
5011 ;;
5012esac
5013
5014enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5015
5016check_deps $CONFIG_LIST \
5017 $CONFIG_EXTRA \
5018 $HAVE_LIST \
5019 $ALL_COMPONENTS \
5020
5021flatten_extralibs(){
5022 unset nested_entries
5023 list_name=$1
5024 eval list=\$${1}
5025 for entry in $list; do
5026 entry_copy=$entry
5027 resolve entry_copy
5028 append nested_entries $(filter '*_extralibs' $entry_copy)
5029 flat_entries=$(filter_out '*_extralibs' $entry_copy)
5030 eval $entry="\$flat_entries"
5031 done
5032 append $list_name "$nested_entries"
5033
5034 resolve nested_entries
5035 if test -n "$(filter '*_extralibs' $nested_entries)"; then
5036 flatten_extralibs $list_name
5037 fi
5038}
5039
5040for linkunit in $LIBRARY_LIST; do
5041 unset current_extralibs
5042 eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
5043 for comp in ${components}; do
5044 enabled $comp || continue
5045 comp_extralibs="${comp}_extralibs"
5046 append current_extralibs $comp_extralibs
5047 done
5048 eval prepend ${linkunit}_extralibs $current_extralibs
5049done
5050
5051for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
5052 flatten_extralibs ${linkunit}_extralibs
5053 unique ${linkunit}_extralibs
5054 resolve ${linkunit}_extralibs
5055 eval ${linkunit}_extralibs=\$\(\$ldflags_filter \$${linkunit}_extralibs\)
5056done
5057
5058map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5059
5060for thread in $THREADS_LIST; do
5061 if enabled $thread; then
5062 test -n "$thread_type" &&
5063 die "ERROR: Only one thread type must be selected." ||
5064 thread_type="$thread"
5065 fi
5066done
5067
5068if disabled stdatomic; then
5069 if enabled atomics_gcc; then
5070 add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
5071 elif enabled atomics_win32; then
5072 add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
5073 elif enabled atomics_suncc; then
5074 add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
5075 elif enabled pthreads; then
5076 add_compat atomics/pthread/stdatomic.o
5077 add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
5078 else
5079 enabled threads && die "Threading is enabled, but no atomics are available"
5080 add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
5081 fi
5082fi
5083
5084enabled zlib && add_cppflags -DZLIB_CONST
5085
5086# conditional library dependencies, in linking order
5087enabled movie_filter && prepend avfilter_deps "avformat avcodec"
5088enabled_any asyncts_filter resample_filter &&
5089 prepend avfilter_deps "avresample"
5090enabled scale_filter && prepend avfilter_deps "swscale"
5091
5092enabled opus_decoder && prepend avcodec_deps "avresample"
5093
5094expand_deps(){
5095 lib_deps=${1}_deps
5096 eval "deps=\$$lib_deps"
5097 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5098 unique $lib_deps
5099}
5100
5101map 'expand_deps $v' $LIBRARY_LIST
5102
5103if test "$quiet" != "yes"; then
5104
5105echo "install prefix $prefix"
5106echo "source path $source_path"
5107echo "C compiler $cc"
5108echo "C library $libc_type"
5109if test "$host_cc" != "$cc"; then
5110 echo "host C compiler $host_cc"
5111 echo "host C library $host_libc_type"
5112fi
5113echo "ARCH $arch ($cpu)"
5114if test "$extra_version" != ""; then
5115 echo "version string suffix $extra_version"
5116fi
5117echo "big-endian ${bigendian-no}"
5118echo "runtime cpu detection ${runtime_cpudetect-no}"
5119if enabled x86; then
5120 echo "standalone assembly ${x86asm-no}"
5121 echo "x86 assembler ${x86asmexe}"
5122 echo "MMX enabled ${mmx-no}"
5123 echo "MMXEXT enabled ${mmxext-no}"
5124 echo "3DNow! enabled ${amd3dnow-no}"
5125 echo "3DNow! extended enabled ${amd3dnowext-no}"
5126 echo "SSE enabled ${sse-no}"
5127 echo "SSSE3 enabled ${ssse3-no}"
5128 echo "AVX enabled ${avx-no}"
5129 echo "XOP enabled ${xop-no}"
5130 echo "FMA3 enabled ${fma3-no}"
5131 echo "FMA4 enabled ${fma4-no}"
5132 echo "i686 features enabled ${i686-no}"
5133 echo "CMOV is fast ${fast_cmov-no}"
5134 echo "EBX available ${ebx_available-no}"
5135 echo "EBP available ${ebp_available-no}"
5136fi
5137if enabled aarch64; then
5138 echo "NEON enabled ${neon-no}"
5139 echo "VFP enabled ${vfp-no}"
5140fi
5141if enabled arm; then
5142 echo "ARMv5TE enabled ${armv5te-no}"
5143 echo "ARMv6 enabled ${armv6-no}"
5144 echo "ARMv6T2 enabled ${armv6t2-no}"
5145 echo "VFP enabled ${vfp-no}"
5146 echo "NEON enabled ${neon-no}"
5147fi
5148if enabled ppc; then
5149 echo "AltiVec enabled ${altivec-no}"
5150 echo "VSX enabled ${vsx-no}"
5151 echo "POWER8 enabled ${power8-no}"
5152 echo "PPC 4xx optimizations ${ppc4xx-no}"
5153 echo "dcbzl available ${dcbzl-no}"
5154fi
5155echo "debug symbols ${debug-no}"
5156echo "optimize for size ${small-no}"
5157echo "optimizations ${optimizations-no}"
5158echo "static ${static-no}"
5159echo "shared ${shared-no}"
5160echo "network support ${network-no}"
5161echo "threading support ${thread_type-no}"
5162echo "safe bitstream reader ${safe_bitstream_reader-no}"
5163
5164echo "External libraries:"
5165print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5166echo
5167echo "External libraries providing hardware acceleration:"
5168print_enabled '' $HWACCEL_LIBRARY_LIST | print_3_columns
5169echo
5170
5171echo "Libraries:"
5172print_enabled '' $LIBRARY_LIST | print_3_columns
5173echo
5174
5175echo "Programs:"
5176print_enabled '' $PROGRAM_LIST | print_3_columns
5177echo
5178
5179for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev; do
5180 echo "Enabled ${type}s:"
5181 eval list=\$$(toupper $type)_LIST
5182 print_enabled '_*' $list | print_3_columns
5183 echo
5184done
5185
5186if test -n "$ignore_tests"; then
5187 ignore_tests=$(echo $ignore_tests | tr ',' ' ')
5188 echo "Ignored FATE tests:"
5189 echo $ignore_tests | print_3_columns
5190 echo
5191fi
5192
5193echo "License: $license"
5194
5195fi # test "$quiet" != "yes"
5196
5197test -n "$WARNINGS" && printf "\n$WARNINGS"
5198
5199test -e Makefile || echo "include $source_path/Makefile" > Makefile
5200
5201esc(){
5202 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
5203}
5204
5205echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
5206
5207config_files="$TMPH avbuild/config.mak"
5208
5209cat > avbuild/config.mak <<EOF
5210# Automatically generated by configure - do not modify!
5211LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5212prefix=$prefix
5213LIBDIR=\$(DESTDIR)$libdir
5214SHLIBDIR=\$(DESTDIR)$shlibdir
5215INCDIR=\$(DESTDIR)$incdir
5216BINDIR=\$(DESTDIR)$bindir
5217DATADIR=\$(DESTDIR)$datadir
5218DOCDIR=\$(DESTDIR)$docdir
5219MANDIR=\$(DESTDIR)$mandir
5220SRC_PATH=$source_path
5221CC_IDENT=$cc_ident
5222ARCH=$arch
5223INTRINSICS=$intrinsics
5224EXTERN_PREFIX=$extern_prefix
5225CC=$cc
5226AS=$as
5227OBJCC=$objcc
5228LD=$ld
5229DEPCC=$dep_cc
5230DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5231DEPAS=$as
5232DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5233X86ASM=$x86asmexe
5234DEPX86ASM=$x86asmexe
5235DEPX86ASMFLAGS=\$(X86ASMFLAGS)
5236AR=$ar
5237ARFLAGS=$arflags
5238AR_O=$ar_o
5239AR_CMD=$ar
5240NM_CMD=$nm
5241RANLIB=$ranlib
5242STRIP=$strip
5243LN_S=$ln_s
5244CPPFLAGS=$CPPFLAGS
5245CFLAGS=$CFLAGS
5246OBJCFLAGS=$OBJCFLAGS
5247ASFLAGS=$ASFLAGS
5248AS_C=$AS_C
5249AS_O=$AS_O
5250OBJCC_C=$OBJCC_C
5251OBJCC_E=$OBJCC_E
5252OBJCC_O=$OBJCC_O
5253CC_C=$CC_C
5254CC_E=$CC_E
5255CC_O=$CC_O
5256X86ASM_O=$X86ASM_O
5257LD_O=$LD_O
5258LD_LIB=$LD_LIB
5259LD_PATH=$LD_PATH
5260DLLTOOL=$dlltool
5261LDFLAGS=$LDFLAGS
5262LDEXEFLAGS=$LDEXEFLAGS
5263LDSOFLAGS=$LDSOFLAGS
5264SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5265STRIPFLAGS=$STRIPFLAGS
5266X86ASMFLAGS=$X86ASMFLAGS
5267LIBPREF=$LIBPREF
5268LIBSUF=$LIBSUF
5269LIBNAME=$LIBNAME
5270SLIBPREF=$SLIBPREF
5271SLIBSUF=$SLIBSUF
5272EXESUF=$EXESUF
5273EXTRA_VERSION=$extra_version
5274CCDEP=$CCDEP
5275CCDEP_FLAGS=$CCDEP_FLAGS
5276ASDEP=$ASDEP
5277ASDEP_FLAGS=$ASDEP_FLAGS
5278X86ASMDEP=$X86ASMDEP
5279X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
5280CC_DEPFLAGS=$CC_DEPFLAGS
5281AS_DEPFLAGS=$AS_DEPFLAGS
5282X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
5283HOSTCC=$host_cc
5284HOSTLD=$host_ld
5285HOSTCFLAGS=$host_cflags
5286HOSTCPPFLAGS=$host_cppflags
5287HOSTEXESUF=$HOSTEXESUF
5288HOSTLDFLAGS=$host_ldflags
5289HOSTEXTRALIBS=$host_extralibs
5290DEPHOSTCC=$host_cc
5291DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5292HOSTCCDEP=$HOSTCCDEP
5293HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5294HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5295HOSTCC_C=$HOSTCC_C
5296HOSTCC_O=$HOSTCC_O
5297HOSTLD_O=$HOSTLD_O
5298TARGET_EXEC=$target_exec $target_exec_args
5299TARGET_PATH=$target_path
5300TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5301CFLAGS-avplay=$sdl_cflags
5302CFLAGS_HEADERS=$CFLAGS_HEADERS
5303LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5304EXTRALIBS=$extralibs
5305COMPAT_OBJS=$compat_objs
5306INSTALL=install
5307LIBTARGET=${LIBTARGET}
5308SLIBNAME=${SLIBNAME}
5309SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5310SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5311SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5312SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5313SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5314SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5315SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5316SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5317VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
5318SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5319IGNORE_TESTS=$ignore_tests
5320EOF
5321
5322map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> avbuild/config.mak' $LIBRARY_LIST
5323
5324for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
5325 eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> avbuild/config.mak
5326done
5327
5328cat > $TMPH <<EOF
5329/* Automatically generated by configure - do not modify! */
5330#ifndef LIBAV_CONFIG_H
5331#define LIBAV_CONFIG_H
5332#define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5333#define LIBAV_LICENSE "$(c_escape $license)"
5334#define AVCONV_DATADIR "$(eval c_escape $datadir)"
5335#define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5336#define EXTERN_PREFIX "${extern_prefix}"
5337#define EXTERN_ASM ${extern_prefix}
5338#define SLIBSUF "$SLIBSUF"
5339EOF
5340
5341test $restrict_keyword != restrict &&
5342 echo "#define restrict $restrict_keyword" >> $TMPH
5343
5344test -n "$malloc_prefix" &&
5345 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5346
5347if enabled x86asm; then
5348 append config_files $TMPASM
5349 cat > $TMPASM <<EOF
5350; Automatically generated by configure - do not modify!
5351EOF
5352fi
5353
5354enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5355
5356print_config ARCH_ "$config_files" $ARCH_LIST
5357print_config HAVE_ "$config_files" $HAVE_LIST
5358print_config CONFIG_ "$config_files" $CONFIG_LIST \
5359 $CONFIG_EXTRA \
5360 $ALL_COMPONENTS \
5361
5362echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5363
5364# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5365cp_if_changed $TMPH config.h
5366touch avbuild/.config
5367
5368enabled x86asm && cp_if_changed $TMPASM config.asm
5369
5370cat > $TMPH <<EOF
5371/* Generated by libav configure */
5372#ifndef AVUTIL_AVCONFIG_H
5373#define AVUTIL_AVCONFIG_H
5374EOF
5375
5376print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5377
5378echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5379
5380cp_if_changed $TMPH libavutil/avconfig.h
5381
5382# generate the lists of enabled components
5383print_enabled_components(){
5384 file=$1
5385 struct_name=$2
5386 name=$3
5387 shift 3
5388 echo "static const $struct_name * const $name[] = {" > $TMPH
5389 for c in $*; do
5390 enabled $c && printf " &ff_%s,\n" $c >> $TMPH
5391 done
5392 echo " NULL };" >> $TMPH
5393 cp_if_changed $TMPH $file
5394}
5395
5396print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
5397print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
5398
5399# Settings for pkg-config files
5400
5401cat > $TMPH <<EOF
5402# Automatically generated by configure - do not modify!
5403shared=$shared
5404prefix=$prefix
5405libdir=$libdir
5406incdir=$incdir
5407source_path=${source_path}
5408LIBPREF=${LIBPREF}
5409LIBSUF=${LIBSUF}
5410extralibs_avutil="$avutil_extralibs"
5411extralibs_avcodec="$avcodec_extralibs"
5412extralibs_avformat="$avformat_extralibs"
5413extralibs_avdevice="$avdevice_extralibs"
5414extralibs_avfilter="$avfilter_extralibs"
5415extralibs_avresample="$avresample_extralibs"
5416extralibs_swscale="$swscale_extralibs"
5417EOF
5418
5419for lib in $LIBRARY_LIST; do
5420 lib_deps="$(eval echo \$${lib}_deps)"
5421 echo ${lib}_deps=\"$lib_deps\" >> $TMPH
5422done
5423
5424cp_if_changed $TMPH avbuild/config.sh