3 # Libav configure script
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
10 # Prevent locale nonsense from breaking basic text processing.
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
23 (: ${foo%%bar}) 2> /dev/null
26 (: ${foo?}) 2> /dev/null
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
32 if test "0$FF_CONF_EXEC" -lt 1; then
34 try_exec bash "$0" "$@"
36 if test "0$FF_CONF_EXEC" -lt 2; then
38 try_exec ksh "$0" "$@"
40 if test "0$FF_CONF_EXEC" -lt 3; then
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
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."
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
80 --logfile=FILE log tests and output to FILE [config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
175 External library support:
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
190 --enable-avisynth video frameserver
191 --enable-bzlib bzip2 compression [autodetect]
192 --enable-frei0r video filtering plugins
193 --enable-gnutls crypto
194 --enable-libbs2b Bauer stereophonic-to-binaural DSP
195 --enable-libcdio audio CD input
196 --enable-libdc1394 IEEE 1394/Firewire camera input
197 --enable-libdcadec DCA audio decoding
198 --enable-libfaac AAC audio encoding
199 --enable-libfdk-aac AAC audio encoding/decoding
200 --enable-libfontconfig font configuration and management
201 --enable-libfreetype font rendering
202 --enable-libgsm GSM audio encoding/decoding
203 --enable-libhdcd HDCD decoding filter
204 --enable-libilbc ILBC audio encoding/decoding
205 --enable-libkvazaar HEVC video encoding
206 --enable-libmp3lame MP3 audio encoding
207 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
208 --enable-libopencore-amrwb AMR-WB audio decoding
209 --enable-libopencv computer vision
210 --enable-libopenh264 H.264 video encoding/decoding
211 --enable-libopenjpeg JPEG 2000 image encoding/decoding
212 --enable-libopus Opus audio encoding/decoding
213 --enable-libpulse Pulseaudio sound server
214 --enable-librtmp RTMP streaming
215 --enable-libschroedinger Dirac video encoding/decoding
216 --enable-libsnappy snappy compression
217 --enable-libspeex Speex audio encoding/decoding
218 --enable-libtheora Theora video encoding/decoding
219 --enable-libtwolame MP2 audio encoding
220 --enable-libvo-aacenc AAC audio encoding
221 --enable-libvo-amrwbenc AMR-WB audio encoding
222 --enable-libvorbis Vorbis audio encoding/decoding
223 --enable-libvpx VP* video encoding/decoding
224 --enable-libwavpack Wavpack audio encoding/decoding
225 --enable-libwebp WebP image encoding/decoding
226 --enable-libx264 H.264 video encoding
227 --enable-libx265 HEVC video encoding
228 --enable-libxavs Chinese AVS video encoding
229 --enable-libxcb X window system protocol communication
230 --enable-libxcb-shm X11 shm communication [auto]
231 --enable-libxcb-xfixes X11 mouse rendering [auto]
232 --enable-libxvid MPEG-4 ASP video encoding
233 --enable-openssl crypto
234 --enable-zlib compression [autodetect]
236 The following libraries provide various hardware acceleration features:
237 --enable-cuda Nvidia CUDA (dynamically linked)
238 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
239 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
240 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
241 --enable-libnpp Nvidia CUDA processing
242 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
243 --enable-nvenc Nvidia video encoding
244 --enable-omx OpenMAX IL
245 --enable-omx-rpi OpenMAX IL for Raspberry Pi
246 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
247 --enable-vda Apple Video Decode Acceleration [auto]
248 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
251 --arch=ARCH select architecture [$arch]
252 --cpu=CPU select the minimum required CPU (affects
253 instruction selection, may crash on older CPUs)
254 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
255 --enable-cross-compile assume a cross-compiler is used
256 --sysroot=PATH root of cross-build tree
257 --sysinclude=PATH location of cross-build system headers
258 --target-os=OS compiler targets OS [$target_os]
259 --target-exec=CMD command to run executables on target
260 --target-path=DIR path to view of build directory on target
261 --target-samples=DIR path to samples directory on target
262 --toolchain=NAME set tool defaults according to NAME
264 --ar=AR use archive tool AR [$ar_default]
265 --as=AS use assembler AS [$as_default]
266 --cc=CC use C compiler CC [$cc_default]
267 --objcc=OCC use ObjC compiler OCC [$cc_default]
268 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
269 --ld=LD use linker LD
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-libs=ELIBS add ELIBS [$ELIBS]
284 --extra-version=STRING version string suffix []
285 --optflags=OPTFLAGS override optimization-related compiler flags
286 --build-suffix=SUFFIX library name suffix []
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
292 Advanced 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
302 Optimization 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-yasm disable use of nasm/yasm assembly
330 Developer 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 --enable-random randomly enable/disable components
343 --enable-random=LIST randomly enable/disable specific components or
344 --disable-random=LIST component groups. LIST is a comma-separated list
345 of NAME[:PROB] entries where NAME is a component
346 (group) and PROB the probability associated with
348 --random-seed=VALUE seed value for --enable/disable-random
349 --disable-valgrind-backtrace do not print a backtrace under Valgrind
350 (only applies to --disable-optimizations builds)
352 NOTE: Object files are built at the place where configure is launched.
360 echo "$@" >> $logfile
367 printf '%5s %s\n' "${i}" "${line}"
369 done < $1 >> $logfile
380 WARNINGS="${WARNINGS}WARNING: $*\n"
387 If you think configure made a mistake, make sure you are using the latest
388 version from Git. If the latest version fails, report the problem to the
389 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
391 if disabled logging; then
393 Rerun configure with logging enabled (do not use --disable-logging), and
394 include the log this produces with your report.
398 Include the log file "$logfile" produced by configure as this will help
405 # Avoid locale weirdness, besides we really just want to translate ASCII.
407 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
411 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
415 echo "$*" | sed 's/["\\]/\\\0/g'
419 v=$(echo "$1" | sed "s/'/'\\\\''/g")
420 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
425 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
432 eval "case $v in $pat) echo $v ;; esac"
440 eval "case $v in $pat) ;; *) echo $v ;; esac"
447 for v; do eval $m; done
453 for v; do echo ${v}${suffix}; done
468 eval : \${$var:=$value}
473 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
479 eval $(sanitize_var_name "$var")='$*'
483 eval echo \$$(sanitize_var_name "$1")
488 eval level=\${${pvar}_level:=0}
489 eval ${pvar}_${level}="\$$pvar"
490 eval ${pvar}_level=$(($level+1))
496 eval level=\${${pvar}_level:-0}
497 test $level = 0 && continue
498 eval level=$(($level-1))
499 eval $pvar="\${${pvar}_${level}}"
500 eval ${pvar}_level=$level
501 eval unset ${pvar}_${level}
523 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
529 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
535 enabled $var && continue
536 eval sel="\$${var}_select"
537 eval sgs="\$${var}_suggest"
541 enable_deep_weak $sgs
553 disabled $var && continue
562 test "${1#!}" = "$1" && op== || op=!=
563 eval test "x\$${1#!}" $op "xyes"
567 test "${1#!}" = "$1" && op== || op=!=
568 eval test "x\$${1#!}" $op "xno"
573 enabled $opt || return 1
579 disabled $opt || return 1
585 enabled $opt && return 0
591 disabled $opt && return 0
598 eval : \${$opt:=\$${opt}_default}
606 [ $var = $value ] && return 0
614 enabled ${cfg}_checking && die "Circular dependency for $cfg."
615 disabled ${cfg}_checking && continue
616 enable ${cfg}_checking
619 eval dep_all="\$${cfg}_deps"
620 eval dep_any="\$${cfg}_deps_any"
621 eval dep_sel="\$${cfg}_select"
622 eval dep_sgs="\$${cfg}_suggest"
623 eval dep_ifa="\$${cfg}_if"
624 eval dep_ifn="\$${cfg}_if_any"
626 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
627 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
628 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
630 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
631 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
632 enabled_all $dep_all || disable $cfg
633 enabled_any $dep_any || disable $cfg
634 disabled_any $dep_sel && disable $cfg
636 if enabled $cfg; then
638 enable_deep_weak $dep_sgs
641 disable ${cfg}_checking
650 for cfg in $allopts; do
651 enabled $cfg || continue
652 eval dep_extralibs="\$${cfg}_extralibs"
653 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
661 map 'eval echo "$v \${$v:-no}"' "$@" |
662 awk "BEGIN { split(\"$files\", files) }
664 c = \"$pfx\" toupper(\$1);
670 if (file ~ /\\.h\$/) {
671 printf(\"#define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.asm\$/) {
673 printf(\"%%define %s %d\\n\", c, v) >>file;
674 } else if (file ~ /\\.mak\$/) {
675 n = -v ? \"\" : \"!\";
676 printf(\"%s%s=yes\\n\", n, c) >>file;
686 enabled $v && printf "%s\n" ${v%$suf}
693 eval "$var=\"\$$var $*\""
699 eval "$var=\"$* \$$var\""
705 for tok in $(eval echo \$$var); do
706 uniq_list="$(filter_out $tok $uniq_list) $tok"
708 eval "$var=\"${uniq_list}\""
716 append CFLAGS $($cflags_filter "$@")
720 append ASFLAGS $($asflags_filter "$@")
724 append OBJCFLAGS $($objcflags_filter "$@")
728 append LDFLAGS $($ldflags_filter "$@")
732 append LDEXEFLAGS $($ldflags_filter "$@")
736 append STRIPFLAGS "$@"
740 prepend extralibs $($ldflags_filter "$@")
744 append host_cppflags "$@"
748 append host_cflags $($host_cflags_filter "$@")
752 append host_ldflags $($host_ldflags_filter "$@")
756 append compat_objs $1
758 map 'add_cppflags -D$v' "$@"
763 "$@" >> $logfile 2>&1
767 eval printf '%s\\n' $CC_O
771 eval printf '%s\\n' $CC_E
778 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
785 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
792 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
796 eval printf '%s\\n' $AS_O
803 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
807 log check_inline_asm "$@"
812 check_cc "$@" <<EOF && enable $name
813 void foo(void){ __asm__ volatile($code); }
819 check_inline_asm ${1}_inline "\"$2\""
820 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
828 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
832 eval printf '%s\\n' $LD_O
837 flags=$(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 $extralibs
847 test "${hdr%.h}" = "${hdr}" &&
848 echo "#include $hdr" ||
849 echo "#include <$hdr>"
859 for hdr in $headers; do
862 echo "int main(void) { $code; return 0; }"
863 } | check_$check "$@"
867 log check_cppflags "$@"
868 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
875 set -- $($cflags_filter "$@")
882 log check_cflags "$@"
883 test_cflags "$@" && add_cflags "$@"
887 log test_objcflags "$@"
888 set -- $($objcflags_filter "$@")
889 check_objcc "$@" <<EOF
895 log check_objcflags "$@"
896 test_objcflags "$@" && add_objcflags "$@"
900 log test_ldflags "$@"
902 int main(void){ return 0; }
907 log check_ldflags "$@"
908 test_ldflags "$@" && add_ldflags "$@"
912 log test_stripflags "$@"
913 # call check_cc to get a fresh TMPO
915 int main(void) { return 0; }
917 check_cmd $strip $STRIPFLAGS "$@" $TMPO
921 log check_stripflags "$@"
922 test_stripflags "$@" && add_stripflags "$@"
926 log check_header "$@"
930 check_cpp "$@" <<EOF && enable_safe $header
941 check_ld "$@" <<EOF && enable $func
943 int main(void){ $func(); }
948 log check_mathfunc "$@"
952 test $narg = 2 && args="f, g" || args="f"
954 check_ld "$@" <<EOF && enable $func
956 float foo(float f, float g) { return $func($args); }
957 int main(void){ return 0; }
961 check_func_headers(){
962 log check_func_headers "$@"
967 for hdr in $headers; do
970 for func in $funcs; do
971 echo "long check_$func(void) { return (long) $func; }"
973 echo "int main(void) { return 0; }"
974 } | check_ld "$@" && enable $funcs && enable_safe $headers
977 check_cpp_condition(){
978 log check_cpp_condition "$@"
985 #error "unsatisfied condition: $condition"
991 log test_cflags_cpp "$@"
995 set -- $($cflags_filter "$flags")
998 #error "unsatisfied condition: $condition"
1008 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1012 log check_pkg_config "$@"
1017 check_cmd $pkg_config --exists --print-errors $pkg || return
1018 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1019 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1020 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1021 set_safe "${pkg}_cflags" $pkg_cflags &&
1022 set_safe "${pkg}_libs" $pkg_libs
1026 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1030 log check_exec_crash "$@"
1033 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1034 # are safe but may not be available everywhere. Thus we use
1035 # raise(SIGTERM) instead. The check is run in a subshell so we
1036 # can redirect the "Terminated" message from the shell. SIGBUS
1037 # is not defined by standard C so it is used conditionally.
1039 (check_exec "$@") >> $logfile 2>&1 <<EOF
1041 static void sighandler(int sig){
1047 int (*func_ptr)(void) = foo;
1049 signal(SIGILL, sighandler);
1050 signal(SIGFPE, sighandler);
1051 signal(SIGSEGV, sighandler);
1053 signal(SIGBUS, sighandler);
1065 disable_safe "$type"
1066 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1070 log check_struct "$@"
1075 disable_safe "${struct}_${member}"
1076 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1077 enable_safe "${struct}_${member}"
1081 log check_builtin "$@"
1087 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1090 check_compile_assert(){
1091 log check_compile_assert "$@"
1097 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1106 check_lib "$headers" $func "$@" || die "ERROR: $name not found"
1109 require_pkg_config(){
1110 log require_pkg_config "$@"
1112 check_pkg_config "$@" || die "ERROR: $pkg not found"
1113 add_cflags $(get_safe "${pkg}_cflags")
1114 add_extralibs $(get_safe "${pkg}_libs")
1118 eval printf '%s\\n' $HOSTCC_E
1122 eval printf '%s\\n' $HOSTCC_O
1126 log check_host_cc "$@"
1129 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1133 log check_host_cpp "$@"
1136 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1139 check_host_cppflags(){
1140 log check_host_cppflags "$@"
1141 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1146 check_host_cflags(){
1147 log check_host_cflags "$@"
1148 set -- $($host_cflags_filter "$@")
1149 check_host_cc "$@" <<EOF && append host_cflags "$@"
1154 check_host_cpp_condition(){
1155 log check_host_cpp_condition "$@"
1159 check_host_cpp "$@" <<EOF
1162 #error "unsatisfied condition: $condition"
1170 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1174 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1175 mkdir -p "$(dirname $2)"
1179 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1180 # system-dependent things.
1182 AVCODEC_COMPONENTS="
1190 AVDEVICE_COMPONENTS="
1194 AVFILTER_COMPONENTS="
1197 AVFORMAT_COMPONENTS="
1203 AVRESAMPLE_COMPONENTS=""
1204 AVUTIL_COMPONENTS=""
1208 $AVDEVICE_COMPONENTS
1209 $AVFILTER_COMPONENTS
1210 $AVFORMAT_COMPONENTS
1211 $AVRESAMPLE_COMPONENTS
1216 decode_audio_example
1217 decode_video_example
1218 encode_audio_example
1219 encode_video_example
1220 filter_audio_example
1224 transcode_aac_example
1227 HWACCEL_LIBRARY_NONFREE_LIST="
1231 HWACCEL_LIBRARY_LIST="
1232 $HWACCEL_LIBRARY_NONFREE_LIST
1244 EXTERNAL_LIBRARY_GPL_LIST="
1252 EXTERNAL_LIBRARY_NONFREE_LIST="
1258 EXTERNAL_LIBRARY_VERSION3_LIST="
1265 EXTERNAL_LIBRARY_LIST="
1266 $EXTERNAL_LIBRARY_GPL_LIST
1267 $EXTERNAL_LIBRARY_NONFREE_LIST
1268 $EXTERNAL_LIBRARY_VERSION3_LIST
1309 safe_bitstream_reader
1355 $EXTERNAL_LIBRARY_LIST
1356 $HWACCEL_LIBRARY_LIST
1419 ARCH_EXT_LIST_X86_SIMD="
1447 $ARCH_EXT_LIST_X86_SIMD
1452 ARCH_EXT_LIST_MIPS="
1489 sync_val_compare_and_swap
1503 AVFoundation_AVFoundation_h
1508 cdio_paranoia_paranoia_h
1510 dev_bktr_ioctl_bt848_h
1511 dev_bktr_ioctl_meteor_h
1513 dev_video_bktr_ioctl_bt848_h
1514 dev_video_meteor_ioctl_meteor_h
1522 machine_ioctl_bt848_h
1523 machine_ioctl_meteor_h
1588 GetProcessAffinityMask
1589 GetProcessMemoryInfo
1592 GetSystemTimeAsFileTime
1597 jack_port_get_latency_range
1609 SetConsoleTextAttribute
1620 TOOLCHAIN_FEATURES="
1642 CONDITION_VARIABLE_Ptr
1645 struct_group_source_req
1646 struct_ip_mreq_source
1649 struct_rusage_ru_maxrss
1651 struct_sockaddr_sa_len
1652 struct_sockaddr_storage
1653 struct_v4l2_frmivalenum_discrete
1658 $(add_suffix _external $ARCH_EXT_LIST)
1659 $(add_suffix _inline $ARCH_EXT_LIST)
1676 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1686 # options emitted with CONFIG_ prefix but not available on the command line
1833 # code dependency declarations
1835 # architecture extensions
1840 armv8_deps="aarch64"
1841 neon_deps_any="aarch64 arm"
1842 intrinsics_neon_deps="neon"
1843 vfp_deps_any="aarch64 arm"
1846 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1854 x86_64_select="i686"
1855 x86_64_suggest="fast_cmov"
1858 amd3dnowext_deps="amd3dnow"
1874 mmx_external_deps="yasm"
1875 mmx_inline_deps="inline_asm"
1876 mmx_suggest="mmx_external mmx_inline"
1878 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1879 eval dep=\$${ext}_deps
1880 eval ${ext}_external_deps='"${dep}_external"'
1881 eval ${ext}_inline_deps='"${dep}_inline"'
1882 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1885 aligned_stack_if_any="aarch64 ppc x86"
1886 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1887 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1888 fast_unaligned_if_any="aarch64 ppc x86"
1889 simd_align_16_if_any="altivec neon sse"
1890 simd_align_32_if_any="avx"
1892 # system capabilities
1893 symver_if_any="symver_asm_label symver_gnu_asm"
1894 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1897 atomics_gcc_if="sync_val_compare_and_swap"
1898 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1899 atomics_win32_if="MemoryBarrier"
1900 atomics_native_if_any="$ATOMICS_LIST"
1901 w32threads_deps="atomics_native"
1902 threads_if_any="$THREADS_LIST"
1906 dirac_parse_select="golomb"
1907 error_resilience_select="me_cmp"
1908 faandct_deps="faan fdctdsp"
1909 faanidct_deps="faan idctdsp"
1910 h264dsp_select="startcode"
1911 intrax8_select="blockdsp idctdsp"
1914 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1915 mpeg_er_select="error_resilience"
1916 mpegaudio_select="mpegaudiodsp"
1917 mpegaudiodsp_select="dct"
1918 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1919 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1920 vc1dsp_select="h264chroma qpeldsp startcode"
1922 # decoders / encoders
1923 aac_decoder_select="imdct15 mdct sinewin"
1924 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1925 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1926 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1927 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1928 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1929 adpcm_g722_decoder_select="g722dsp"
1930 adpcm_g722_encoder_select="g722dsp"
1931 aic_decoder_select="golomb idctdsp"
1932 alac_encoder_select="lpc"
1933 als_decoder_select="bswapdsp"
1934 amrnb_decoder_select="lsp"
1935 amrwb_decoder_select="lsp"
1936 amv_decoder_select="sp5x_decoder"
1937 ape_decoder_select="bswapdsp"
1938 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1939 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1940 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1941 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1942 atrac1_decoder_select="mdct sinewin"
1943 atrac3_decoder_select="mdct"
1944 atrac3p_decoder_select="mdct sinewin"
1945 bink_decoder_select="blockdsp hpeldsp"
1946 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1947 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1948 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1949 cllc_decoder_select="bswapdsp"
1950 comfortnoise_encoder_select="lpc"
1951 cook_decoder_select="audiodsp mdct sinewin"
1952 cscd_decoder_select="lzo"
1953 cscd_decoder_suggest="zlib"
1954 dca_decoder_select="fmtconvert mdct"
1955 dds_decoder_select="texturedsp"
1956 dnxhd_decoder_select="blockdsp idctdsp"
1957 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1958 dvvideo_decoder_select="dvprofile idctdsp"
1959 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1960 dxa_decoder_deps="zlib"
1961 dxv_decoder_select="lzf texturedsp"
1962 eac3_decoder_select="ac3_decoder"
1963 eac3_encoder_select="ac3_encoder"
1964 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1965 eatgq_decoder_select="aandcttables idctdsp"
1966 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1967 exr_decoder_deps="zlib"
1968 ffv1_decoder_select="golomb rangecoder"
1969 ffv1_encoder_select="rangecoder"
1970 ffvhuff_decoder_select="huffyuv_decoder"
1971 ffvhuff_encoder_select="huffyuv_encoder"
1972 fic_decoder_select="golomb"
1973 flac_decoder_select="flacdsp golomb"
1974 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1975 flashsv_decoder_deps="zlib"
1976 flashsv_encoder_deps="zlib"
1977 flashsv2_decoder_deps="zlib"
1978 flv_decoder_select="h263_decoder"
1979 flv_encoder_select="h263_encoder"
1980 fourxm_decoder_select="blockdsp bswapdsp"
1981 fraps_decoder_select="bswapdsp huffman"
1982 g2m_decoder_deps="zlib"
1983 g2m_decoder_select="blockdsp idctdsp jpegtables"
1984 h261_decoder_select="mpeg_er mpegvideo"
1985 h261_encoder_select="aandcttables mpegvideoenc"
1986 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1987 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1988 h263i_decoder_select="h263_decoder"
1989 h263p_encoder_select="h263_encoder"
1990 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1991 h264_decoder_suggest="error_resilience"
1992 hap_decoder_select="snappy texturedsp"
1993 hap_encoder_deps="libsnappy"
1994 hap_encoder_select="texturedspenc"
1995 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1996 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1997 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1998 iac_decoder_select="imc_decoder"
1999 imc_decoder_select="bswapdsp fft mdct sinewin"
2000 indeo3_decoder_select="hpeldsp"
2001 indeo4_decoder_select="ividsp"
2002 indeo5_decoder_select="ividsp"
2003 interplay_video_decoder_select="hpeldsp"
2004 jpegls_decoder_select="golomb mjpeg_decoder"
2005 jpegls_encoder_select="golomb"
2006 jv_decoder_select="blockdsp"
2007 lagarith_decoder_select="huffyuvdsp"
2008 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2009 loco_decoder_select="golomb"
2010 magicyuv_decoder_select="huffyuvdsp"
2011 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2012 metasound_decoder_select="lsp mdct sinewin"
2013 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2014 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2015 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2016 mjpegb_decoder_select="mjpeg_decoder"
2017 mlp_decoder_select="mlp_parser"
2018 motionpixels_decoder_select="bswapdsp"
2019 mp1_decoder_select="mpegaudio"
2020 mp1float_decoder_select="mpegaudio"
2021 mp2_decoder_select="mpegaudio"
2022 mp2float_decoder_select="mpegaudio"
2023 mp3_decoder_select="mpegaudio"
2024 mp3adu_decoder_select="mpegaudio"
2025 mp3adufloat_decoder_select="mpegaudio"
2026 mp3float_decoder_select="mpegaudio"
2027 mp3on4_decoder_select="mpegaudio"
2028 mp3on4float_decoder_select="mpegaudio"
2029 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2030 mpc8_decoder_select="mpegaudiodsp"
2031 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2032 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2033 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2034 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2035 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2036 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2037 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2038 mpeg4_encoder_select="h263_encoder"
2039 msa1_decoder_select="mss34dsp"
2040 msmpeg4v1_decoder_select="h263_decoder"
2041 msmpeg4v2_decoder_select="h263_decoder"
2042 msmpeg4v2_encoder_select="h263_encoder"
2043 msmpeg4v3_decoder_select="h263_decoder"
2044 msmpeg4v3_encoder_select="h263_encoder"
2045 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2046 mts2_decoder_select="mss34dsp"
2047 mxpeg_decoder_select="mjpeg_decoder"
2048 nellymoser_decoder_select="mdct sinewin"
2049 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2050 nuv_decoder_select="idctdsp lzo"
2051 on2avc_decoder_select="mdct"
2052 opus_decoder_deps="avresample"
2053 opus_decoder_select="imdct15"
2054 png_decoder_deps="zlib"
2055 png_encoder_deps="zlib"
2056 png_encoder_select="huffyuvencdsp"
2057 prores_decoder_select="idctdsp"
2058 prores_encoder_select="fdctdsp"
2059 qcelp_decoder_select="lsp"
2060 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2061 ra_144_encoder_select="audio_frame_queue lpc"
2062 ralf_decoder_select="golomb"
2063 rscc_decoder_deps="zlib"
2064 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2065 rv10_encoder_select="h263_encoder"
2066 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2067 rv20_encoder_select="h263_encoder"
2068 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2069 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2070 screenpresso_decoder_deps="zlib"
2071 shorten_decoder_select="golomb"
2072 sipr_decoder_select="lsp"
2073 sp5x_decoder_select="mjpeg_decoder"
2074 svq1_decoder_select="hpeldsp"
2075 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2076 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2077 svq3_decoder_suggest="zlib"
2078 tak_decoder_select="audiodsp"
2079 tdsc_decoder_deps="zlib"
2080 tdsc_decoder_select="mjpeg_decoder"
2081 theora_decoder_select="vp3_decoder"
2082 thp_decoder_select="mjpeg_decoder"
2083 tiff_decoder_suggest="zlib"
2084 tiff_encoder_suggest="zlib"
2085 truehd_decoder_select="mlp_decoder"
2086 truemotion2_decoder_select="bswapdsp"
2087 truespeech_decoder_select="bswapdsp"
2088 tscc_decoder_deps="zlib"
2089 txd_decoder_select="texturedsp"
2090 twinvq_decoder_select="mdct lsp sinewin"
2091 utvideo_decoder_select="bswapdsp"
2092 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2093 vble_decoder_select="huffyuvdsp"
2094 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2095 vc1image_decoder_select="vc1_decoder"
2096 vorbis_decoder_select="mdct"
2097 vorbis_encoder_select="mdct"
2098 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2099 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2100 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2101 vp6a_decoder_select="vp6_decoder"
2102 vp6f_decoder_select="vp6_decoder"
2103 vp7_decoder_select="h264pred videodsp vp8dsp"
2104 vp8_decoder_select="h264pred videodsp vp8dsp"
2105 vp9_decoder_select="videodsp"
2106 webp_decoder_select="vp8_decoder"
2107 wmapro_decoder_select="mdct sinewin wma_freqs"
2108 wmav1_decoder_select="mdct sinewin wma_freqs"
2109 wmav1_encoder_select="mdct sinewin wma_freqs"
2110 wmav2_decoder_select="mdct sinewin wma_freqs"
2111 wmav2_encoder_select="mdct sinewin wma_freqs"
2112 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2113 wmv1_decoder_select="h263_decoder"
2114 wmv1_encoder_select="h263_encoder"
2115 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2116 wmv2_encoder_select="h263_encoder wmv2dsp"
2117 wmv3_decoder_select="vc1_decoder"
2118 wmv3image_decoder_select="wmv3_decoder"
2119 zerocodec_decoder_deps="zlib"
2120 zlib_decoder_deps="zlib"
2121 zlib_encoder_deps="zlib"
2122 zmbv_decoder_deps="zlib"
2123 zmbv_encoder_deps="zlib"
2125 # hardware accelerators
2126 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2127 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2128 vaapi_deps="va_va_h"
2129 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2130 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2131 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2133 h263_vaapi_hwaccel_deps="vaapi"
2134 h263_vaapi_hwaccel_select="h263_decoder"
2135 h264_d3d11va_hwaccel_deps="d3d11va"
2136 h264_d3d11va_hwaccel_select="h264_decoder"
2137 h264_dxva2_hwaccel_deps="dxva2"
2138 h264_dxva2_hwaccel_select="h264_decoder"
2139 h264_mmal_decoder_deps="mmal"
2140 h264_mmal_decoder_select="mmal"
2141 h264_mmal_hwaccel_deps="mmal"
2142 h264_omx_encoder_deps="omx"
2143 h264_qsv_hwaccel_deps="libmfx"
2144 h264_vaapi_hwaccel_deps="vaapi"
2145 h264_vaapi_hwaccel_select="h264_decoder"
2146 h264_vda_hwaccel_deps="vda"
2147 h264_vda_hwaccel_select="h264_decoder"
2148 h264_vda_old_hwaccel_deps="vda"
2149 h264_vda_old_hwaccel_select="h264_decoder"
2150 h264_vdpau_hwaccel_deps="vdpau"
2151 h264_vdpau_hwaccel_select="h264_decoder"
2152 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2153 hevc_d3d11va_hwaccel_select="hevc_decoder"
2154 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2155 hevc_dxva2_hwaccel_select="hevc_decoder"
2156 hevc_qsv_hwaccel_deps="libmfx"
2157 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2158 hevc_vdpau_hwaccel_select="hevc_decoder"
2159 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2160 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2161 mpeg1_vdpau_hwaccel_deps="vdpau"
2162 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2163 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2164 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2165 mpeg2_dxva2_hwaccel_deps="dxva2"
2166 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2167 mpeg2_mmal_decoder_deps="mmal"
2168 mpeg2_mmal_decoder_select="mmal"
2169 mpeg2_mmal_hwaccel_deps="mmal"
2170 mpeg2_qsv_hwaccel_deps="libmfx"
2171 mpeg2_vaapi_hwaccel_deps="vaapi"
2172 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2173 mpeg2_vdpau_hwaccel_deps="vdpau"
2174 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2175 mpeg4_omx_encoder_deps="omx"
2176 mpeg4_vaapi_hwaccel_deps="vaapi"
2177 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2178 mpeg4_vdpau_hwaccel_deps="vdpau"
2179 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2180 vc1_d3d11va_hwaccel_deps="d3d11va"
2181 vc1_d3d11va_hwaccel_select="vc1_decoder"
2182 vc1_dxva2_hwaccel_deps="dxva2"
2183 vc1_dxva2_hwaccel_select="vc1_decoder"
2184 vc1_mmal_decoder_deps="mmal"
2185 vc1_mmal_decoder_select="mmal"
2186 vc1_mmal_hwaccel_deps="mmal"
2187 vc1_qsv_hwaccel_deps="libmfx"
2188 vc1_vaapi_hwaccel_deps="vaapi"
2189 vc1_vaapi_hwaccel_select="vc1_decoder"
2190 vc1_vdpau_hwaccel_deps="vdpau"
2191 vc1_vdpau_hwaccel_select="vc1_decoder"
2192 vp8_qsv_hwaccel_deps="libmfx"
2193 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2194 vp8_vaapi_hwaccel_select="vp8_decoder"
2195 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2196 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2197 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2198 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2200 # hardware-accelerated codecs
2201 nvenc_deps_any="dlopen LoadLibrary"
2202 nvenc_extralibs='$ldl'
2203 omx_deps="dlopen pthreads"
2204 omx_extralibs='$ldl'
2207 vaapi_encode_deps="vaapi"
2209 hwupload_cuda_filter_deps="cuda"
2210 scale_npp_filter_deps="cuda libnpp"
2212 h264_nvenc_encoder_deps="nvenc"
2213 h264_qsv_decoder_deps="libmfx"
2214 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2215 h264_qsv_encoder_deps="libmfx"
2216 h264_qsv_encoder_select="qsvenc"
2217 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2218 h264_vaapi_encoder_select="vaapi_encode golomb"
2220 hevc_nvenc_encoder_deps="nvenc"
2221 hevc_qsv_decoder_deps="libmfx"
2222 hevc_qsv_encoder_deps="libmfx"
2223 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2224 hevc_qsv_encoder_select="qsvenc"
2225 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2226 hevc_vaapi_encoder_select="vaapi_encode golomb"
2227 mpeg2_qsv_decoder_deps="libmfx"
2228 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2229 mpeg2_qsv_encoder_deps="libmfx"
2230 mpeg2_qsv_encoder_select="qsvenc"
2231 vc1_qsv_decoder_deps="libmfx"
2232 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2233 vp8_qsv_decoder_deps="libmfx"
2234 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2236 nvenc_h264_encoder_deps="nvenc"
2237 nvenc_hevc_encoder_deps="nvenc"
2240 h264_parser_select="golomb h264dsp h264parse"
2241 hevc_parser_select="golomb"
2242 mpegvideo_parser_select="mpegvideo"
2243 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2244 vc1_parser_select="vc1dsp"
2247 mjpeg2jpeg_bsf_select="jpegtables"
2249 # external libraries
2250 libdcadec_decoder_deps="libdcadec"
2251 libfaac_encoder_deps="libfaac"
2252 libfaac_encoder_select="audio_frame_queue"
2253 libfdk_aac_decoder_deps="libfdk_aac"
2254 libfdk_aac_encoder_deps="libfdk_aac"
2255 libfdk_aac_encoder_select="audio_frame_queue"
2256 libgsm_decoder_deps="libgsm"
2257 libgsm_encoder_deps="libgsm"
2258 libgsm_ms_decoder_deps="libgsm"
2259 libgsm_ms_encoder_deps="libgsm"
2260 libilbc_decoder_deps="libilbc"
2261 libilbc_encoder_deps="libilbc"
2262 libkvazaar_encoder_deps="libkvazaar"
2263 libmp3lame_encoder_deps="libmp3lame"
2264 libmp3lame_encoder_select="audio_frame_queue"
2265 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2266 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2267 libopencore_amrnb_encoder_select="audio_frame_queue"
2268 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2269 libopenh264_decoder_deps="libopenh264"
2270 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2271 libopenh264_encoder_deps="libopenh264"
2272 libopenjpeg_decoder_deps="libopenjpeg"
2273 libopenjpeg_encoder_deps="libopenjpeg"
2274 libopus_decoder_deps="libopus"
2275 libopus_encoder_deps="libopus"
2276 libopus_encoder_select="audio_frame_queue"
2277 libschroedinger_decoder_deps="libschroedinger"
2278 libschroedinger_encoder_deps="libschroedinger"
2279 libspeex_decoder_deps="libspeex"
2280 libspeex_encoder_deps="libspeex"
2281 libspeex_encoder_select="audio_frame_queue"
2282 libtheora_encoder_deps="libtheora"
2283 libtwolame_encoder_deps="libtwolame"
2284 libvo_aacenc_encoder_deps="libvo_aacenc"
2285 libvo_aacenc_encoder_select="audio_frame_queue"
2286 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2287 libvorbis_encoder_deps="libvorbis"
2288 libvorbis_encoder_select="audio_frame_queue"
2289 libvpx_vp8_decoder_deps="libvpx"
2290 libvpx_vp8_encoder_deps="libvpx"
2291 libvpx_vp9_decoder_deps="libvpx"
2292 libvpx_vp9_encoder_deps="libvpx"
2293 libwavpack_encoder_deps="libwavpack"
2294 libwebp_encoder_deps="libwebp"
2295 libx262_encoder_deps="libx262"
2296 libx264_encoder_deps="libx264"
2297 libx265_encoder_deps="libx265"
2298 libxavs_encoder_deps="libxavs"
2299 libxvid_encoder_deps="libxvid mkstemp"
2302 ac3_demuxer_select="ac3_parser"
2303 asf_demuxer_select="riffdec"
2304 asf_muxer_select="riffenc"
2305 asf_stream_muxer_select="asf_muxer"
2306 avi_demuxer_select="iso_media riffdec"
2307 avi_muxer_select="riffenc"
2308 avisynth_demuxer_deps="avisynth"
2309 avisynth_demuxer_select="riffdec"
2310 caf_demuxer_select="iso_media riffdec"
2311 dash_muxer_select="mp4_muxer"
2312 dirac_demuxer_select="dirac_parser"
2313 dv_demuxer_select="dvprofile"
2314 dv_muxer_select="dvprofile"
2315 dxa_demuxer_select="riffdec"
2316 eac3_demuxer_select="ac3_parser"
2317 f4v_muxer_select="mov_muxer"
2318 flac_demuxer_select="flac_parser"
2319 hds_muxer_select="flv_muxer"
2320 hls_muxer_select="mpegts_muxer"
2321 ipod_muxer_select="mov_muxer"
2322 ismv_muxer_select="mov_muxer"
2323 matroska_audio_muxer_select="matroska_muxer"
2324 matroska_demuxer_select="iso_media riffdec"
2325 matroska_demuxer_suggest="bzlib lzo zlib"
2326 matroska_muxer_select="iso_media riffenc"
2327 mmf_muxer_select="riffenc"
2328 mov_demuxer_select="iso_media riffdec"
2329 mov_demuxer_suggest="zlib"
2330 mov_muxer_select="iso_media riffenc rtpenc_chain"
2331 mp3_demuxer_select="mpegaudio_parser"
2332 mp4_muxer_select="mov_muxer"
2333 mpegts_demuxer_select="iso_media"
2334 mpegts_muxer_select="adts_muxer latm_muxer"
2335 mpegtsraw_demuxer_select="mpegts_demuxer"
2336 mxf_d10_muxer_select="mxf_muxer"
2337 nut_muxer_select="riffenc"
2338 nuv_demuxer_select="riffdec"
2339 oga_muxer_select="ogg_muxer"
2340 ogg_demuxer_select="dirac_parse"
2341 opus_muxer_select="ogg_muxer"
2342 psp_muxer_select="mov_muxer"
2343 rtp_demuxer_select="sdp_demuxer"
2344 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2345 rtsp_demuxer_select="http_protocol rtpdec"
2346 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2347 sap_demuxer_select="sdp_demuxer"
2348 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2349 sdp_demuxer_select="rtpdec"
2350 smoothstreaming_muxer_select="ismv_muxer"
2351 spdif_muxer_select="aac_parser"
2352 spx_muxer_select="ogg_muxer"
2353 swf_demuxer_suggest="zlib"
2354 tak_demuxer_select="tak_parser"
2355 tg2_muxer_select="mov_muxer"
2356 tgp_muxer_select="mov_muxer"
2357 w64_demuxer_select="wav_demuxer"
2358 wav_demuxer_select="riffdec"
2359 wav_muxer_select="riffenc"
2360 webm_muxer_select="iso_media riffenc"
2361 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2362 wtv_demuxer_select="mpegts_demuxer riffdec"
2363 xmv_demuxer_select="riffdec"
2364 xwma_demuxer_select="riffdec"
2367 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2368 alsa_outdev_deps="alsa_asoundlib_h"
2369 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2370 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2371 dv1394_indev_deps="dv1394"
2372 dv1394_indev_select="dv_demuxer"
2373 fbdev_indev_deps="linux_fb_h"
2374 jack_indev_deps="jack_jack_h"
2375 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2376 libcdio_indev_deps="libcdio"
2377 libdc1394_indev_deps="libdc1394"
2378 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2379 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2380 pulse_indev_deps="libpulse"
2381 sndio_indev_deps="sndio_h"
2382 sndio_outdev_deps="sndio_h"
2383 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2384 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2385 vfwcap_indev_extralibs="-lavicap32"
2386 xcbgrab_indev_deps="libxcb"
2389 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2390 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2391 ffrtmpcrypt_protocol_select="tcp_protocol"
2392 ffrtmphttp_protocol_deps="!librtmp_protocol"
2393 ffrtmphttp_protocol_select="http_protocol"
2394 gopher_protocol_select="network"
2395 http_protocol_select="tcp_protocol"
2396 httpproxy_protocol_select="tcp_protocol"
2397 https_protocol_select="tls_protocol"
2398 icecast_protocol_select="http_protocol"
2399 librtmp_protocol_deps="librtmp"
2400 librtmpe_protocol_deps="librtmp"
2401 librtmps_protocol_deps="librtmp"
2402 librtmpt_protocol_deps="librtmp"
2403 librtmpte_protocol_deps="librtmp"
2404 mmsh_protocol_select="http_protocol"
2405 mmst_protocol_select="network"
2406 rtmp_protocol_deps="!librtmp_protocol"
2407 rtmp_protocol_select="tcp_protocol"
2408 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2409 rtmps_protocol_deps="!librtmp_protocol"
2410 rtmps_protocol_select="tls_protocol"
2411 rtmpt_protocol_select="ffrtmphttp_protocol"
2412 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2413 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2414 rtp_protocol_select="udp_protocol"
2415 sctp_protocol_deps="struct_sctp_event_subscribe"
2416 sctp_protocol_select="network"
2417 srtp_protocol_select="rtp_protocol srtp"
2418 tcp_protocol_select="network"
2419 tls_gnutls_protocol_deps="gnutls"
2420 tls_gnutls_protocol_select="tcp_protocol"
2421 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2422 tls_openssl_protocol_select="tcp_protocol"
2423 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2424 udp_protocol_select="network"
2425 unix_protocol_deps="sys_un_h"
2426 unix_protocol_select="network"
2429 asyncts_filter_deps="avresample"
2430 blackframe_filter_deps="gpl"
2431 boxblur_filter_deps="gpl"
2432 bs2b_filter_deps="libbs2b"
2433 cropdetect_filter_deps="gpl"
2434 deinterlace_qsv_filter_deps="libmfx"
2435 delogo_filter_deps="gpl"
2436 drawtext_filter_deps="libfreetype"
2437 frei0r_filter_deps="frei0r dlopen"
2438 frei0r_filter_extralibs='$ldl'
2439 frei0r_src_filter_deps="frei0r dlopen"
2440 frei0r_src_filter_extralibs='$ldl'
2441 hdcd_filter_deps="libhdcd"
2442 hqdn3d_filter_deps="gpl"
2443 interlace_filter_deps="gpl"
2444 movie_filter_deps="avcodec avformat"
2445 ocv_filter_deps="libopencv"
2446 resample_filter_deps="avresample"
2447 scale_filter_deps="swscale"
2448 scale_qsv_filter_deps="libmfx"
2449 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2452 decode_audio_example_deps="avcodec avutil"
2453 decode_video_example_deps="avcodec avutil"
2454 encode_audio_example_deps="avcodec avutil"
2455 encode_video_example_deps="avcodec avutil"
2456 filter_audio_example_deps="avfilter avutil"
2457 metadata_example_deps="avformat avutil"
2458 output_example_deps="avcodec avformat avresample avutil swscale"
2459 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2460 transcode_aac_example_deps="avcodec avformat avresample"
2462 # libraries, in linking order
2463 avcodec_deps="avutil"
2464 avdevice_deps="avformat avcodec avutil"
2465 avfilter_deps="avutil"
2466 avformat_deps="avcodec avutil"
2467 avresample_deps="avutil"
2468 swscale_deps="avutil"
2471 avconv_deps="avcodec avfilter avformat avresample swscale"
2472 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2473 fps_filter null_filter resample_filter scale_filter
2475 avplay_deps="avcodec avfilter avformat avresample sdl"
2476 avplay_libs='$sdl_libs'
2477 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2478 avprobe_deps="avcodec avformat"
2482 texi2html_deps="doc"
2484 # default parameters
2486 logfile="config.log"
2488 # installation paths
2489 prefix_default="/usr/local"
2490 bindir_default='${prefix}/bin'
2491 datadir_default='${prefix}/share/avconv'
2492 docdir_default='${prefix}/share/doc/libav'
2493 incdir_default='${prefix}/include'
2494 libdir_default='${prefix}/lib'
2495 mandir_default='${prefix}/share/man'
2496 shlibdir_default="$libdir_default"
2501 host_cc_default="gcc"
2506 pkg_config_default=pkg-config
2509 version_script='--version-script'
2513 arch_default=$(uname -m)
2518 target_os_default=$(tolower $(uname -s))
2519 host_os=$target_os_default
2521 # configurable options
2522 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2527 enable faan faandct faanidct
2528 enable optimizations
2529 enable safe_bitstream_reader
2531 enable swscale_alpha
2532 enable valgrind_backtrace
2534 # By default, enable only those hwaccels that have no external dependencies.
2535 enable d3d11va dxva2 vda vdpau
2538 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2541 FULLNAME='$(NAME)$(BUILDSUF)'
2542 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2545 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2546 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2547 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2548 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2549 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2550 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2551 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2574 host_cflags_filter=echo
2575 host_ldflags_filter=echo
2577 target_path='$(CURDIR)'
2579 # since the object filename is not given with the -MM flag, the compiler
2580 # is only able to print the basename, and we must add the path ourselves
2581 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2585 if test -f configure; then
2588 source_path=$(cd $(dirname "$0"); pwd)
2589 echo "$source_path" | grep -q '[[:blank:]]' &&
2590 die "Out of tree builds are impossible with whitespace in source path."
2591 test -e "$source_path/config.h" &&
2592 die "Out of tree builds are impossible with config.h in source dir."
2599 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2605 file=$source_path/$3
2606 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2609 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2610 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2611 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2612 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2613 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2614 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2615 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2616 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2617 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2619 find_things_extern(){
2622 file=$source_path/$3
2623 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2626 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2627 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2643 for n in $COMPONENT_LIST; do
2644 v=$(toupper ${n%s})_LIST
2646 eval ${n}_if_any="\$$v"
2649 enable $ARCH_EXT_LIST
2652 echo "Unknown option \"$1\"."
2653 echo "See $0 --help for available options."
2658 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2664 echo $* | sed s/$suffix//g | print_3_columns
2676 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2677 echo "prob ${prob:-0.5}"
2685 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2686 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2695 --extra-ldexeflags=*)
2696 add_ldexeflags $optval
2699 add_extralibs $optval
2702 disable $INDEV_LIST $OUTDEV_LIST
2705 debuglevel="$optval"
2708 disable $PROGRAM_LIST
2710 --disable-everything)
2711 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2714 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2715 disable $LIBRARY_LIST $PROGRAM_LIST doc
2717 --enable-random|--disable-random)
2718 action=${opt%%-random}
2719 do_random ${action#--} $COMPONENT_LIST
2721 --enable-random=*|--disable-random=*)
2722 action=${opt%%-random=*}
2723 do_random ${action#--} $optval
2725 --enable-*=*|--disable-*=*)
2726 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2727 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2728 eval list=\$$(toupper $thing)_LIST
2729 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2730 $action $(filter "$name" $list)
2732 --enable-avserver|--disable-avserver*)
2733 warn "avserver has been removed, the ${opt} option is only"\
2734 "provided for compatibility and will be removed in the future"
2736 --enable-?*|--disable-?*)
2737 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2738 if is_in $option $COMPONENT_LIST; then
2739 test $action = disable && action=unset
2740 eval $action \$$(toupper ${option%s})_LIST
2741 elif is_in $option $CMDLINE_SELECT; then
2748 NAME="${opt#--list-}"
2749 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2751 eval show_list $NAME \$$(toupper $NAME)_LIST
2753 --help|-h) show_help
2755 --quiet|-q) quiet=yes
2758 optname="${opt%%=*}"
2759 optname="${optname#--}"
2760 optname=$(echo "$optname" | sed 's/-/_/g')
2761 if is_in $optname $CMDLINE_SET; then
2762 eval $optname='$optval'
2763 elif is_in $optname $CMDLINE_APPEND; then
2764 append $optname "$optval"
2776 disabled logging && logfile=/dev/null
2778 # Die early if licensing-related configure options are incompatible.
2779 die_license_disabled() {
2780 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2783 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2784 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2785 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2787 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2789 # Disable all the library-specific components if the library itself
2790 # is disabled, see AVCODEC_LIST and following _LIST variables.
2792 disable_components(){
2793 disabled ${1} && disable $(
2794 eval components="\$$(toupper ${1})_COMPONENTS"
2795 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2799 map 'disable_components $v' $LIBRARY_LIST
2801 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2804 case "$toolchain" in
2806 cc_default="${toolchain%-asan}"
2807 add_cflags -fsanitize=address
2808 add_ldflags -fsanitize=address
2811 cc_default="${toolchain%-msan}"
2812 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2813 add_ldflags -fsanitize=memory
2816 cc_default="${toolchain%-tsan}"
2817 add_cflags -fsanitize=thread -pie
2818 add_ldflags -fsanitize=thread -pie
2819 case "$toolchain" in
2827 cc_default="${toolchain%-usan}"
2828 add_cflags -fsanitize=undefined
2829 add_ldflags -fsanitize=undefined
2830 case "$toolchain" in
2837 target_exec_default="valgrind"
2838 case "$toolchain" in
2840 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2843 target_exec_args="--track-origins=yes --leak-check=full"
2848 # Check whether the current MSVC version needs the C99 converter.
2849 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2850 # support enough of C99 to build libav. Default to the new
2851 # behaviour if the regexp was unable to match anything, since this
2852 # successfully parses the version number of existing supported
2853 # versions that require the converter (MSVC 2010 and 2012).
2854 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2855 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2858 cc_default="c99wrap cl"
2860 ld_default="$source_path/compat/windows/mslink"
2861 nm_default="dumpbin -symbols"
2868 target_os_default="win32"
2869 # Use a relative path for TMPDIR. This makes sure all the
2870 # ffconf temp files are written with a relative path, avoiding
2871 # issues with msys/win32 path conversion for MSVC parameters
2872 # such as -Fo<file> or -out:<file>.
2878 nm_default="dumpbin -symbols"
2880 target_os_default="win32"
2884 add_cflags -fprofile-arcs -ftest-coverage
2885 add_ldflags -fprofile-arcs -ftest-coverage
2888 add_cflags -fprofile-arcs -ftest-coverage
2889 add_ldflags --coverage
2892 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2893 add_cflags -fno-strict-overflow -fstack-protector-all
2894 add_ldflags -Wl,-z,relro -Wl,-z,now
2897 die "Unknown toolchain $toolchain"
2901 test -n "$cross_prefix" && enable cross_compile
2903 if enabled cross_compile; then
2904 test -n "$arch" && test -n "$target_os" ||
2905 die "Must specify target arch and OS when cross-compiling"
2908 ar_default="${cross_prefix}${ar_default}"
2909 cc_default="${cross_prefix}${cc_default}"
2910 occ_default="${cross_prefix}${occ_default}"
2911 nm_default="${cross_prefix}${nm_default}"
2912 pkg_config_default="${cross_prefix}${pkg_config_default}"
2913 ranlib="${cross_prefix}${ranlib}"
2914 strip="${cross_prefix}${strip}"
2916 sysinclude_default="${sysroot}/usr/include"
2918 set_default arch cc pkg_config sysinclude target_exec target_os
2919 enabled cross_compile || host_cc_default=$cc
2922 if ! $pkg_config --version >/dev/null 2>&1; then
2923 warn "$pkg_config not found, library detection may fail."
2929 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2933 EXESUF=$(exesuf $target_os)
2934 HOSTEXESUF=$(exesuf $host_os)
2936 # set temporary file name
2937 : ${TMPDIR:=$TEMPDIR}
2941 if ! check_cmd mktemp -u XXXXXX; then
2942 # simple replacement for missing mktemp
2943 # NOT SAFE FOR GENERAL USE
2945 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2950 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2951 (set -C; exec > $tmp) 2>/dev/null ||
2952 die "Unable to create temporary file in $TMPDIR."
2953 append TMPFILES $tmp
2957 trap 'rm -f -- $TMPFILES' EXIT
2961 tmpfile TMPE $EXESUF
2972 # make sure we can execute files in $TMPDIR
2973 cat > $TMPSH 2>> $logfile <<EOF
2976 chmod +x $TMPSH >> $logfile 2>&1
2977 if ! $TMPSH >> $logfile 2>&1; then
2979 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2980 variable to another directory and make sure that it is not mounted noexec.
2982 die "Sanity test failed."
2988 # Filter out MSVC cl.exe options from cflags that shouldn't
2989 # be passed to gas-preprocessor
2999 -std=c99) echo -c99 ;;
3000 -mcpu=*) echo -arch ${flag#*=} ;;
3001 -mieee) echo -ieee ;;
3002 -O*|-fast) echo $flag ;;
3003 -fno-math-errno) echo -assume nomath_errno ;;
3005 -Wall) echo -msg_enable level2 ;;
3006 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3007 -Wl,*) echo $flag ;;
3017 -Wno-switch) echo -Wno-switch-enum ;;
3018 -Wno-format-zero-length) ;;
3019 -Wdisabled-optimization) ;;
3020 -Wno-pointer-sign) echo -Wno-other ;;
3026 msvc_common_flags(){
3029 # In addition to specifying certain flags under the compiler
3030 # specific filters, they must be specified here as well or else the
3031 # generic catch all at the bottom will print the original flag.
3035 -fomit-frame-pointer) ;;
3039 -fno-signed-zeros) ;;
3043 -lz) echo zlib.lib ;;
3044 -lavicap32) echo vfw32.lib user32.lib ;;
3045 -lx264) echo libx264.lib ;;
3046 -l*) echo ${flag#-l}.lib ;;
3047 -L*) echo -libpath:${flag#-L} ;;
3054 msvc_common_flags "$@"
3057 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3058 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3059 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3060 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3066 msvc_common_flags "$@"
3069 # Despite what Intel's documentation says -Wall, which is supported
3070 # on Windows, does enable remarks so disable them here.
3071 -Wall) echo $flag -Qdiag-disable:remark ;;
3072 -std=c99) echo -Qstd=c99 ;;
3080 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3081 -fomit-frame-pointer) echo -Mnoframe ;;
3092 case "${flag#*=}" in
3093 native) echo -xtarget=native ;;
3094 v9|niagara) echo -xarch=sparc ;;
3095 ultrasparc) echo -xarch=sparcvis ;;
3096 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3097 i586|pentium) echo -xchip=pentium ;;
3098 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3099 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3100 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3101 pentium4*) echo -xtarget=pentium4 ;;
3102 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3103 *-sse3) echo -xarch=sse3 ;;
3104 core2) echo -xarch=ssse3 -xchip=core2 ;;
3105 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3106 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3107 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3108 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3109 k8|opteron|athlon64|athlon-fx)
3110 echo -xarch=sse2a ;;
3111 athlon*) echo -xarch=pentium_proa ;;
3114 -std=c99) echo -xc99 ;;
3115 -fomit-frame-pointer) echo -xregs=frameptr ;;
3116 -fPIC) echo -KPIC -xcode=pic32 ;;
3117 -W*,*) echo $flag ;;
3118 -f*-*|-W*|-mimpure-text) ;;
3129 case "${flag#*=}" in
3130 armv7-a|cortex-a*) echo -mv=7a8 ;;
3131 armv7-r|cortex-r*) echo -mv=7r4 ;;
3132 armv7-m|cortex-m*) echo -mv=7m3 ;;
3133 armv6*|arm11*) echo -mv=6 ;;
3134 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3136 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3139 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3140 -mfpu=vfp) echo --float_support=vfpv2 ;;
3141 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3142 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3143 -msoft-float) echo --float_support=vfplib ;;
3144 -O[0-3]|-mf=*) echo $flag ;;
3146 -pds=*) echo $flag ;;
3147 -D*|-I*) echo $flag ;;
3148 --gcc|--abi=*) echo $flag ;;
3158 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3159 unset _ld_o _ldflags _ld_lib _ld_path
3160 unset _depflags _DEPCMD _DEPFLAGS
3163 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3165 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3166 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3167 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3170 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3172 gcc_version=$($_cc --version | head -n1)
3173 gcc_basever=$($_cc -dumpversion)
3174 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3175 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3176 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3177 if ! $_cc -dumpversion | grep -q '^2\.'; then
3178 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3182 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3184 _ident=$($_cc --version | head -n1)
3189 elif $_cc -v 2>&1 | grep -q xlc; then
3191 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3193 _cflags_size='-O5 -qcompact'
3194 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3196 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3198 _cflags_speed='-fast'
3200 _flags_filter=ccc_flags
3201 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3202 test -d "$sysroot" || die "No valid sysroot specified."
3204 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3205 armcc_conf="$PWD/armcc.conf"
3206 $_cc --arm_linux_configure \
3207 --arm_linux_config_file="$armcc_conf" \
3208 --configure_sysroot="$sysroot" \
3209 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3210 die "Error creating armcc configuration file."
3211 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3212 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3213 as_default="${cross_prefix}gcc"
3217 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3219 _ident=$($_cc -version | head -n1 | tr -s ' ')
3220 _flags='--gcc --abi=eabi -me'
3223 _depflags='-ppa -ppd=$(@:.o=.d)'
3224 _cflags_speed='-O3 -mf=5'
3225 _cflags_size='-O3 -mf=2'
3226 _flags_filter=tms470_flags
3227 elif $_cc -v 2>&1 | grep -q clang; then
3229 _ident=$($_cc --version 2>/dev/null | head -n1)
3230 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3233 elif $_cc -V 2>&1 | grep -q Sun; then
3235 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3236 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3237 _DEPFLAGS='-xM1 -xc99'
3240 _cflags_size='-O5 -xspace'
3241 _flags_filter=suncc_flags
3242 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3244 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3245 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3248 _flags_filter='filter_out -Wdisabled-optimization'
3249 elif $_cc -v 2>&1 | grep -q Open64; then
3251 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3252 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3255 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3256 elif $_cc -V 2>&1 | grep -q Portland; then
3258 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3259 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3260 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3261 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3263 _flags_filter=pgi_flags
3264 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3266 _ident=$($_cc | head -n1)
3267 # 4509: "This form of conditional instruction is deprecated"
3268 _flags="-nologo -ignore 4509"
3269 _flags_filter=armasm_flags
3270 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3272 _ident=$($_cc 2>&1 | head -n1)
3273 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3274 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3277 if $_cc -nologo- 2>&1 | grep -q Linker; then
3284 _flags_filter=msvc_flags
3286 _ld_path='-libpath:'
3288 elif $_cc 2>&1 | grep -q Intel; then
3290 _ident=$($_cc 2>&1 | head -n1)
3291 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3292 # Not only is O3 broken on 13.x+ but it is slower on all previous
3293 # versions (tested) as well.
3295 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3296 if $_cc 2>&1 | grep -q Linker; then
3303 _flags_filter=icl_flags
3305 _ld_path='-libpath:'
3306 # -Qdiag-error to make icl error when seeing certain unknown arguments
3307 _flags='-nologo -Qdiag-error:4044,10157'
3308 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3309 # with MSVC which enables it by default.
3310 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3311 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3312 # lld can emulate multiple different linkers; in ms link.exe mode,
3313 # the -? parameter gives the help output which contains an identifyable
3314 # string, while it gives an error in other modes.
3316 # The link.exe mode doesn't have a switch for getting the version,
3317 # but we can force it back to gnu mode and get the version from there.
3318 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3320 _flags_filter=msvc_flags
3322 _ld_path='-libpath:'
3323 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3325 _ident=$($_cc --version | head -n1)
3329 _flags_filter=cparser_flags
3332 eval ${pfx}_type=\$_type
3333 eval ${pfx}_ident=\$_ident
3337 eval ${1}_C=\${_cc_c-\${${1}_C}}
3338 eval ${1}_E=\${_cc_e-\${${1}_E}}
3339 eval ${1}_O=\${_cc_o-\${${1}_O}}
3341 if [ -n "$_depflags" ]; then
3342 eval ${1}_DEPFLAGS=\$_depflags
3344 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3345 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3346 eval DEP${1}FLAGS=\$_flags
3351 cflags_filter=$_flags_filter
3352 cflags_speed=$_cflags_speed
3353 cflags_size=$_cflags_size
3354 cflags_noopt=$_cflags_noopt
3355 add_cflags $_flags $_cflags
3356 cc_ldflags=$_ldflags
3359 probe_cc hostcc "$host_cc"
3360 host_cflags_filter=$_flags_filter
3361 add_host_cflags $_flags $_cflags
3364 test -n "$cc_type" && enable $cc_type ||
3365 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3367 : ${as_default:=$cc}
3368 : ${objcc_default:=$cc}
3369 : ${dep_cc_default:=$cc}
3370 : ${ld_default:=$cc}
3371 : ${host_ld_default:=$host_cc}
3372 set_default ar as objcc dep_cc ld host_ld
3375 asflags_filter=$_flags_filter
3376 add_asflags $_flags $_cflags
3379 probe_cc objcc "$objcc"
3380 objcflags_filter=$_flags_filter
3381 add_objcflags $_flags $_cflags
3385 ldflags_filter=$_flags_filter
3386 add_ldflags $_flags $_ldflags
3387 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3389 LD_LIB=${_ld_lib-$LD_LIB}
3390 LD_PATH=${_ld_path-$LD_PATH}
3392 probe_cc hostld "$host_ld"
3393 host_ldflags_filter=$_flags_filter
3394 add_host_ldflags $_flags $_ldflags
3395 HOSTLD_O=${_ld_o-$HOSTLD_O}
3397 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3398 probe_cc depcc "$dep_cc"
3399 CCDEP=${_DEPCMD:-$DEPCMD}
3400 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3404 if $ar 2>&1 | grep -q Microsoft; then
3407 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3410 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3411 arflags='-Xany -r -c'
3418 add_cflags $extra_cflags
3419 add_objcflags $extra_objcflags
3420 add_asflags $extra_cflags
3422 if test -n "$sysroot"; then
3425 add_cppflags --sysroot="$sysroot"
3426 add_ldflags --sysroot="$sysroot"
3429 add_cppflags -I"$sysinclude"
3430 add_ldflags --sysroot="$sysroot"
3435 if test "$cpu" = host; then
3436 enabled cross_compile &&
3437 die "--cpu=host makes no sense when cross-compiling."
3442 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3444 s/.*$1=\\([^ ]*\\).*/\\1/
3449 cpu=$(check_native -march || check_native -mcpu)
3453 test "${cpu:-host}" = host &&
3454 die "--cpu=host not supported with compiler $cc"
3457 # Deal with common $arch aliases
3481 "Power Macintosh"|ppc*|powerpc*)
3496 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3501 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3504 # Add processor-specific flags
3505 if enabled aarch64; then
3509 cpuflags="-march=$cpu"
3512 cpuflags="-mcpu=$cpu"
3516 elif enabled alpha; then
3518 cpuflags="-mcpu=$cpu"
3520 elif enabled arm; then
3523 check_cpp_condition stddef.h \
3524 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3529 if check_arm_arch 4; then echo armv4
3530 elif check_arm_arch 4T; then echo armv4t
3531 elif check_arm_arch 5; then echo armv5
3532 elif check_arm_arch 5E; then echo armv5e
3533 elif check_arm_arch 5T; then echo armv5t
3534 elif check_arm_arch 5TE; then echo armv5te
3535 elif check_arm_arch 5TEJ; then echo armv5te
3536 elif check_arm_arch 6; then echo armv6
3537 elif check_arm_arch 6J; then echo armv6j
3538 elif check_arm_arch 6K; then echo armv6k
3539 elif check_arm_arch 6Z; then echo armv6z
3540 elif check_arm_arch 6ZK; then echo armv6zk
3541 elif check_arm_arch 6T2; then echo armv6t2
3542 elif check_arm_arch 7; then echo armv7
3543 elif check_arm_arch 7A 7_A; then echo armv7-a
3544 elif check_arm_arch 7S; then echo armv7-a
3545 elif check_arm_arch 7R 7_R; then echo armv7-r
3546 elif check_arm_arch 7M 7_M; then echo armv7-m
3547 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3548 elif check_arm_arch 8A 8_A; then echo armv8-a
3552 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3556 cpuflags="-march=$cpu"
3557 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3560 cpuflags="-mcpu=$cpu"
3562 cortex-a*) subarch=armv7a ;;
3563 cortex-r*) subarch=armv7r ;;
3564 cortex-m*) enable thumb; subarch=armv7m ;;
3565 arm11*) subarch=armv6 ;;
3566 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3567 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3568 *) subarch=$(probe_arm_arch) ;;
3574 armv5t*) enable fast_clz ;;
3575 armv[6-8]*) enable fast_clz fast_unaligned ;;
3578 elif enabled avr32; then
3583 cpuflags="-mpart=$cpu"
3587 cpuflags="-march=$cpu"
3591 cpuflags="-mcpu=$cpu"
3595 cpuflags="-march=$cpu"
3599 elif enabled bfin; then
3601 cpuflags="-mcpu=$cpu"
3603 elif enabled mips; then
3605 cpuflags="-march=$cpu"
3607 elif enabled ppc; then
3611 case $(tolower $cpu) in
3612 601|ppc601|powerpc601)
3613 cpuflags="-mcpu=601"
3616 603*|ppc603*|powerpc603*)
3617 cpuflags="-mcpu=603"
3620 604*|ppc604*|powerpc604*)
3621 cpuflags="-mcpu=604"
3624 g3|75*|ppc75*|powerpc75*)
3625 cpuflags="-mcpu=750"
3628 g4|745*|ppc745*|powerpc745*)
3629 cpuflags="-mcpu=7450"
3632 74*|ppc74*|powerpc74*)
3633 cpuflags="-mcpu=7400"
3636 g5|970|ppc970|powerpc970)
3637 cpuflags="-mcpu=970"
3641 cpuflags="-mcpu=$cpu"
3645 cpuflags="-mcpu=$cpu"
3649 cpuflags="-mcpu=cell"
3654 cpuflags="-mcpu=e500mc"
3658 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3663 cpuflags="-mcpu=8540 -mhard-float"
3669 elif enabled sparc; then
3672 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3673 cpuflags="-mcpu=$cpu"
3675 ultrasparc*|niagara[234])
3676 cpuflags="-mcpu=$cpu"
3680 elif enabled x86; then
3684 cpuflags="-march=$cpu"
3688 # targets that do NOT support nopl and conditional mov (cmov)
3689 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3690 cpuflags="-march=$cpu"
3693 # targets that do support nopl and conditional mov (cmov)
3694 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3695 cpuflags="-march=$cpu"
3699 # targets that do support conditional mov but on which it's slow
3700 pentium4|pentium4m|prescott|nocona)
3701 cpuflags="-march=$cpu"
3709 if [ "$cpu" != generic ]; then
3710 add_cflags $cpuflags
3711 add_asflags $cpuflags
3712 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3715 # compiler sanity check
3717 int main(void){ return 0; }
3719 if test "$?" != 0; then
3720 echo "$cc is unable to create an executable file."
3721 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3722 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3723 echo "Only do this if you know what cross compiling means."
3725 die "C compiler test failed."
3728 add_cppflags -D_ISOC99_SOURCE
3730 # some compilers silently accept -std=c11, so we also need to check that the
3731 # version macro is defined properly
3732 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3735 check_cflags -std=c99
3738 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3741 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3745 add_host_cppflags -D_ISOC99_SOURCE
3746 check_host_cflags -std=c99
3747 check_host_cflags -Wall
3748 check_host_cflags -O3
3754 check_code cc "" "int test[2*($expr) - 1]" &&
3755 subarch=$arch64 || subarch=$arch32
3763 check_64bit mips mips64 '_MIPS_SIM > 1'
3767 check_64bit parisc parisc64 'sizeof(void *) > 4'
3771 check_64bit ppc ppc64 'sizeof(void *) > 4'
3775 check_64bit s390 s390x 'sizeof(void *) > 4'
3779 check_64bit sparc sparc64 'sizeof(void *) > 4'
3783 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3784 if test "$subarch" = "x86_64"; then
3791 enabled spic && enable_weak pic
3797 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3798 enabled shared && add_ldflags -Wl,-brtl
3802 enable section_data_rel_ro
3803 SLIB_INSTALL_NAME='$(SLIBNAME)'
3805 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3808 prefix_default="/boot/common"
3809 network_extralibs="-lnetwork"
3813 SHFLAGS='-shared -Wl,-h,$$(@F)'
3814 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3815 network_extralibs="-lsocket -lnsl"
3816 # When using suncc to build, the Solaris linker will mark
3817 # an executable with each instruction set encountered by
3818 # the Solaris assembler. As our libraries contain their own
3819 # guards for processor-specific code, instead suppress
3820 # generation of the HWCAPS ELF section on Solaris x86 only.
3821 enabled_all suncc x86 &&
3822 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3823 add_ldflags -Wl,-M,mapfile
3824 nm_default='nm -P -g'
3826 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3830 oss_indev_extralibs="-lossaudio"
3831 oss_outdev_extralibs="-lossaudio"
3836 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3838 oss_indev_extralibs="-lossaudio"
3839 oss_outdev_extralibs="-lossaudio"
3847 add_extralibs -lpoll -lgnugetopt
3850 enabled ppc && add_asflags -force_cpusubtype_ALL
3851 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3852 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3853 add_ldflags -Wl,-dynamic,-search_paths_first
3855 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3856 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3858 enabled x86_64 && objformat="macho64"
3859 enabled_any pic shared ||
3860 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3861 check_header dispatch/dispatch.h &&
3862 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3865 die "Native MSYS builds are discouraged, please use the MINGW environment."
3868 if test $target_os = "mingw32ce"; then
3874 if enabled x86_64; then
3875 LIBTARGET="i386:x86-64"
3876 elif enabled arm; then
3879 check_ldflags -Wl,--nxcompat
3880 check_ldflags -Wl,--dynamicbase
3881 shlibdir_default="$bindir_default"
3884 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3885 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3886 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3887 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3889 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3890 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3891 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3893 dlltool="${cross_prefix}dlltool"
3899 if enabled shared; then
3900 # Link to the import library instead of the normal static library
3903 # Cannot build both shared and static libs with MSVC or icl.
3906 shlibdir_default="$bindir_default"
3909 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3910 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3911 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3912 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3914 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3915 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3916 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3923 shlibdir_default="$bindir_default"
3926 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3927 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3928 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3930 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3931 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3935 *-dos|freedos|opendos)
3936 network_extralibs="-lsocket"
3939 add_cppflags -U__STRICT_ANSI__
3943 enable section_data_rel_ro
3947 ranlib="echo ignoring ranlib"
3952 add_cppflags -D_GNU_SOURCE
3953 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3954 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3958 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3959 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3960 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3961 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3962 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3963 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3964 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3965 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3966 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3967 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3971 add_cppflags -D_BSD_SOURCE
3976 add_cppflags -D_QNX_SOURCE
3977 network_extralibs="-lsocket"
3982 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3983 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3984 add_ldflags -Wl,--target1-abs,--no-undefined \
3985 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3986 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3987 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3988 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3989 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3992 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3997 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3998 -D_REENTRANT_SOURCE \
3999 -D_RESEARCH_SOURCE \
4002 add_compat strtod.o strtod=avpriv_strtod
4003 network_extralibs='-lbsd'
4004 exeobjs=compat/plan9/main.o
4010 die "Unknown OS '$target_os'."
4014 # determine libc flavour
4019 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4020 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4021 eval ${pfx}libc_type=uclibc
4022 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4023 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4024 eval ${pfx}libc_type=glibc
4025 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4026 # MinGW headers can be installed on Cygwin, so check for newlib first.
4027 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4028 eval ${pfx}libc_type=newlib
4029 add_${pfx}cppflags -U__STRICT_ANSI__
4030 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4031 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4032 eval ${pfx}libc_type=mingw64
4033 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4034 eval test \$${pfx_no_}cc_type = "gcc" &&
4035 add_${pfx}cppflags -D__printf__=__gnu_printf__
4036 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4037 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4038 eval ${pfx}libc_type=mingw32
4039 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4040 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4041 die "ERROR: MinGW32 runtime version must be >= 3.15."
4042 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4043 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4044 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4045 eval test \$${pfx_no_}cc_type = "gcc" &&
4046 add_${pfx}cppflags -D__printf__=__gnu_printf__
4047 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4048 eval ${pfx}libc_type=msvcrt
4049 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4050 if [ "$pfx" = host_ ]; then
4051 add_host_cppflags -Dsnprintf=_snprintf
4053 add_compat strtod.o strtod=avpriv_strtod
4054 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4055 _snprintf=avpriv_snprintf \
4056 vsnprintf=avpriv_vsnprintf
4059 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4060 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4061 # 0x601 by default unless something else is set by the user.
4062 # This can easily lead to us detecting functions only present
4063 # in such new versions and producing binaries requiring windows 7.0.
4064 # Therefore explicitly set the default to XP unless the user has
4065 # set something else on the command line.
4066 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4067 # family. For these cases, configure is free to use any functions
4068 # found in the SDK headers by default. (Alternatively, we could force
4069 # _WIN32_WINNT to 0x0602 in that case.)
4070 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4071 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4072 #ifdef WINAPI_FAMILY
4073 #include <winapifamily.h>
4074 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4079 if [ "$pfx" = "" ]; then
4080 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4082 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4083 eval ${pfx}libc_type=klibc
4084 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4085 eval ${pfx}libc_type=bionic
4086 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4087 eval ${pfx}libc_type=solaris
4088 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4090 eval ${pfx}libc_type=default
4091 add_${pfx}cppflags -D_DEFAULT_SOURCE
4096 test -n "$libc_type" && enable libc_$libc_type
4098 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4102 add_compat strtod.o strtod=avpriv_strtod
4106 # hacks for compiler/libc/os combinations
4108 if enabled_all tms470 libc_glibc; then
4109 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4110 add_cppflags -D__USER_LABEL_PREFIX__=
4111 add_cppflags -D__builtin_memset=memset
4112 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4113 add_cflags -pds=48 # incompatible redefinition of macro
4116 if enabled_all ccc libc_glibc; then
4117 add_ldflags -Wl,-z,now # calls to libots crash without this
4120 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4121 add_cppflags '-I\$(SRC_PATH)/compat/float'
4124 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4127 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4129 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4131 set_default $PATHS_LIST
4134 # we need to build at least one lib type
4135 if ! enabled_any static shared; then
4137 At least one library type must be built.
4138 Specify --enable-static to build the static libraries or --enable-shared to
4139 build the shared libraries as well. To only build the shared libraries specify
4140 --disable-static in addition to --enable-shared.
4145 disabled optimizations || check_cflags -fomit-frame-pointer
4148 disabled pic && return
4151 case "$target_os" in
4161 enabled pic && enable_weak_pic
4163 check_cc <<EOF || die "Symbol mangling check failed."
4166 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4167 extern_prefix=${sym%%ff_extern*}
4169 check_cc <<EOF && enable_weak inline_asm
4170 void foo(void) { __asm__ volatile ("" ::); }
4174 for restrict_keyword in restrict __restrict__ __restrict; do
4175 check_cc <<EOF && _restrict=$restrict_keyword && break
4176 void foo(char * $restrict_keyword p);
4180 check_cc <<EOF && enable pragma_deprecated
4181 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4184 check_cc <<EOF && enable attribute_packed
4185 struct { int x; } __attribute__((packed)) x;
4188 check_cc <<EOF && enable attribute_may_alias
4189 union { int x; } __attribute__((may_alias)) x;
4192 check_cc <<EOF || die "endian test failed"
4193 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4195 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4198 log "check_gas using '$as' as AS"
4199 # :vararg is used on aarch64, arm and ppc altivec
4200 check_as <<EOF || return 1
4201 .macro m n, y:vararg=0
4206 # .altmacro is only used in arm asm
4207 ! enabled arm || check_as <<EOF || return 1
4214 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4216 enabled_any arm aarch64 && nogas=die
4217 enabled_all ppc altivec && nogas=warn
4221 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4222 gcc) gaspp_as_type=gas ;;
4223 *) gaspp_as_type=$as_type ;;
4226 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4228 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4229 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4231 if ! check_gas ; then
4234 $nogas "GNU assembler not found, install/update gas-preprocessor"
4237 check_as <<EOF && enable as_func
4243 check_inline_asm inline_asm_labels '"1:\n"'
4245 if enabled aarch64; then
4246 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4247 # internal assembler in clang 3.3 does not support this instruction
4248 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4249 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4251 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4253 elif enabled alpha; then
4257 elif enabled arm; then
4259 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4260 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4261 enabled thumb && check_cflags -mthumb || check_cflags -marm
4263 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4265 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4267 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4268 case "${cross_prefix:-$cc}" in
4269 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4270 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4271 __asm__ (".eabi_attribute 28, 1");
4272 int main(void) { return 0; }
4275 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4278 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4279 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4280 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4281 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4282 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4283 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4285 [ $target_os = linux ] || [ $target_os = android ] ||
4286 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4289 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4291 check_as <<EOF && enable as_dn_directive
4295 check_as <<EOF && enable as_fpu_directive
4299 # llvm's integrated assembler supports .object_arch from llvm 3.5
4300 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4304 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4306 elif enabled mips; then
4308 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4310 # make sure that only an instruction set is enabled
4311 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4313 if enabled mips64; then
4314 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4315 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4316 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4318 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4319 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4320 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4323 elif enabled parisc; then
4325 if enabled gcc; then
4326 case $($cc -dumpversion) in
4327 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4331 elif enabled ppc; then
4333 enable local_aligned_8 local_aligned_16 local_aligned_32
4335 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4336 check_inline_asm ibm_asm '"add 0, 0, 0"'
4337 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4338 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4340 # AltiVec flags: The FSF version of GCC differs from the Apple version
4341 if enabled altivec; then
4342 check_cflags -maltivec -mabi=altivec &&
4343 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4344 check_cflags -faltivec
4346 # check if our compiler supports Motorola AltiVec C API
4347 check_cc <<EOF || disable altivec
4350 vector signed int v1 = (vector signed int) { 0 };
4351 vector signed int v2 = (vector signed int) { 1 };
4352 v1 = vec_add(v1, v2);
4357 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4360 if enabled vsx; then
4361 check_cflags -mvsx &&
4362 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4365 if enabled power8; then
4366 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4369 elif enabled x86; then
4371 check_builtin rdtsc intrin.h "__rdtsc()"
4372 check_builtin mm_empty mmintrin.h "_mm_empty()"
4374 enable local_aligned_8 local_aligned_16 local_aligned_32
4376 # check whether EBP is available on x86
4377 # As 'i' is stored on the stack, this program will crash
4378 # if the base pointer is used to access it because the
4379 # base pointer is cleared in the inline assembly code.
4380 check_exec_crash <<EOF && enable ebp_available
4382 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4386 # check whether EBX is available on x86
4387 check_inline_asm ebx_available '""::"b"(0)' &&
4388 check_inline_asm ebx_available '"":::"%ebx"'
4390 # check whether xmm clobbers are supported
4391 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4393 # check whether binutils is new enough to compile SSSE3/MMXEXT
4394 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4395 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4397 if ! disabled_any asm mmx yasm; then
4398 if check_cmd $yasmexe --version; then
4399 enabled x86_64 && yasm_extra="-m amd64"
4400 yasm_debug="-g dwarf2"
4401 elif check_cmd nasm -v; then
4403 yasm_debug="-g -F dwarf"
4404 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4407 YASMFLAGS="-f $objformat $yasm_extra"
4408 enabled pic && append YASMFLAGS "-DPIC"
4409 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4410 case "$objformat" in
4411 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4414 check_yasm "movbe ecx, [5]" && enable yasm ||
4415 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4416 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4417 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4418 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4419 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4420 check_yasm "CPU amdnop" || disable cpunop
4424 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4431 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4433 check_ldflags -Wl,--as-needed
4435 if check_func dlopen; then
4437 elif check_func dlopen -ldl; then
4441 if ! disabled network; then
4442 check_func getaddrinfo $network_extralibs
4443 check_func inet_aton $network_extralibs
4445 check_type netdb.h "struct addrinfo"
4446 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4447 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4448 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4449 check_type poll.h "struct pollfd"
4450 check_type netinet/sctp.h "struct sctp_event_subscribe"
4451 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4452 check_type netinet/in.h "struct sockaddr_in6"
4453 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4454 check_type "sys/types.h sys/socket.h" socklen_t
4456 # Prefer arpa/inet.h over winsock2
4457 if check_header arpa/inet.h ; then
4458 check_func closesocket
4459 elif check_header winsock2.h ; then
4460 check_func_headers winsock2.h closesocket -lws2 &&
4461 network_extralibs="-lws2" ||
4462 { check_func_headers winsock2.h closesocket -lws2_32 &&
4463 network_extralibs="-lws2_32"; } || disable winsock2_h network
4464 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4466 check_type ws2tcpip.h socklen_t
4467 check_type ws2tcpip.h "struct addrinfo"
4468 check_type ws2tcpip.h "struct group_source_req"
4469 check_type ws2tcpip.h "struct ip_mreq_source"
4470 check_type ws2tcpip.h "struct ipv6_mreq"
4471 check_type winsock2.h "struct pollfd"
4472 check_struct winsock2.h "struct sockaddr" sa_len
4473 check_type ws2tcpip.h "struct sockaddr_in6"
4474 check_type ws2tcpip.h "struct sockaddr_storage"
4480 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4481 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4482 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4483 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4485 case "$custom_allocator" in
4487 # jemalloc by default does not use a prefix
4488 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4491 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4496 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4497 check_func ${malloc_prefix}memalign && enable memalign
4498 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4500 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4501 check_func_headers time.h clock_gettime ||
4502 { check_lib time.h clock_gettime -lrt && LIBRT="-lrt"; }
4506 check_func gethrtime
4508 check_func getrusage
4509 check_func gettimeofday
4512 check_func localtime_r
4513 check_func mach_absolute_time
4517 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4518 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4519 check_func sched_getaffinity
4520 check_func setrlimit
4521 check_func strerror_r
4526 check_func_headers io.h setmode
4527 check_func_headers stdlib.h getenv
4529 check_func_headers windows.h CoTaskMemFree -lole32
4530 check_func_headers windows.h GetProcessAffinityMask
4531 check_func_headers windows.h GetProcessTimes
4532 check_func_headers windows.h GetSystemTimeAsFileTime
4533 check_func_headers windows.h LoadLibrary
4534 check_func_headers windows.h MapViewOfFile
4535 check_func_headers windows.h SetConsoleTextAttribute
4536 check_func_headers windows.h Sleep
4537 check_func_headers windows.h VirtualAlloc
4538 check_struct windows.h "CONDITION_VARIABLE" Ptr
4540 check_header direct.h
4541 check_header dlfcn.h
4542 check_header d3d11.h
4544 check_header dxva2api.h
4546 check_header mach/mach_time.h
4547 check_header malloc.h
4549 check_header sys/mman.h
4550 check_header sys/param.h
4551 check_header sys/resource.h
4552 check_header sys/select.h
4553 check_header sys/time.h
4554 check_header sys/un.h
4555 check_header unistd.h
4556 check_header valgrind/valgrind.h
4557 check_header vdpau/vdpau.h
4558 check_header vdpau/vdpau_x11.h
4559 check_header VideoDecodeAcceleration/VDADecoder.h
4560 check_header windows.h
4561 check_header X11/extensions/XvMClib.h
4563 # it seems there are versions of clang in some distros that try to use the
4564 # gcc headers, which explodes for stdatomic
4565 # so we also check that atomics actually work here
4566 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4568 check_lib "windows.h shellapi.h" CommandLineToArgvW -lshell32
4569 check_lib "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4570 check_lib "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4572 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4574 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4575 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4576 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4578 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4579 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4580 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4581 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4582 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4584 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4586 if ! disabled w32threads && ! enabled pthreads; then
4587 check_func_headers "windows.h process.h" _beginthreadex &&
4588 enable w32threads || disable w32threads
4591 # check for some common methods of building with pthread support
4592 # do this before the optional library checks as some of them require pthreads
4593 if ! disabled pthreads && ! enabled w32threads; then
4595 if check_func pthread_join -pthread; then
4597 add_extralibs -pthread
4598 elif check_func pthread_join -pthreads; then
4599 add_cflags -pthreads
4600 add_extralibs -pthreads
4601 elif check_func pthread_join -lpthreadGC2; then
4602 add_extralibs -lpthreadGC2
4603 elif check_lib pthread.h pthread_join -lpthread; then
4605 elif ! check_func pthread_join; then
4611 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
4613 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4614 disabled bzlib || check_lib bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4616 check_lib math.h sin -lm && LIBM="-lm"
4622 for func in $MATH_FUNCS; do
4623 eval check_mathfunc $func \${${func}_args:-1} $LIBM
4626 # these are off by default, so fail if requested and not available
4627 enabled avisynth && { check_lib "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4628 check_lib "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4629 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4630 enabled cuda && check_lib cuda.h cuInit -lcuda
4631 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4632 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4633 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4634 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4635 enabled libfaac && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4636 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4637 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4638 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4639 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4640 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4641 done || die "ERROR: libgsm not found"; }
4642 enabled libhdcd && require_pkg_config libhdcd "hdcd/hdcd_simple.h" hdcd_new
4643 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4644 enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4645 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4646 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4647 enabled libnpp && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4648 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4649 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4650 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4651 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4652 enabled libopenjpeg && { check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4653 require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4654 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4655 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4656 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4657 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4658 enabled libsnappy && require libsnappy snappy-c.h snappy_compress -lsnappy
4659 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4660 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4661 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4662 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4663 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4664 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4665 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4666 enabled libvpx_vp8_decoder && {
4667 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4668 disable libvpx_vp8_decoder;
4670 enabled libvpx_vp8_encoder && {
4671 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4672 disable libvpx_vp8_encoder;
4674 enabled libvpx_vp9_decoder && {
4675 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4676 disable libvpx_vp9_decoder;
4678 enabled libvpx_vp9_encoder && {
4679 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4680 disable libvpx_vp9_encoder;
4682 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4683 die "libvpx enabled but no supported decoders found"
4686 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4687 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4688 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4689 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4690 die "ERROR: libx264 version must be >= 0.118."; } &&
4691 { check_cpp_condition x264.h "X264_MPEG2" &&
4693 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4694 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4695 die "ERROR: libx265 version must be >= 57."; }
4696 enabled libxavs && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
4697 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4698 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4699 { ! enabled cross_compile && {
4700 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4701 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4702 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4703 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4704 die "ERROR: mmal not found"; }
4705 enabled mmal && check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"
4706 enabled omx_rpi && enable omx
4707 enabled omx && { check_header OMX_Core.h ||
4708 { ! enabled cross_compile && enabled omx_rpi && {
4709 add_cflags -isystem/opt/vc/include/IL ; }
4710 check_header OMX_Core.h ; } ||
4711 die "ERROR: OpenMAX IL headers not found"; }
4712 enabled openssl && { { check_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||
4713 check_pkg_config openssl openssl/ssl.h SSL_library_init; } && {
4714 add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
4715 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4716 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4717 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4718 die "ERROR: openssl not found"; }
4720 if enabled gnutls; then
4721 { check_lib gmp.h mpz_export -lgmp && enable gmp; } ||
4722 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4726 if enabled libdc1394; then
4727 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4728 enable libdc1394_2; } ||
4729 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4730 enable libdc1394_1; } ||
4731 die "ERROR: No version of libdc1394 found "
4734 if enabled nvenc; then
4735 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."
4736 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||
4737 die "ERROR: NVENC API version 5 or older is not supported"
4740 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4741 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4742 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4746 ! disabled pod2man && check_cmd pod2man --help && enable pod2man || disable pod2man
4747 ! disabled texi2html && check_cmd texi2html -version && enable texi2html || disable texi2html
4749 check_header linux/fb.h
4750 check_header linux/videodev2.h
4751 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4753 check_header AVFoundation/AVFoundation.h &&
4754 check_objcflags -fobjc-arc &&
4755 add_extralibs -framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia ||
4756 disable AVFoundation_AVFoundation_h
4758 check_header sys/videoio.h
4760 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4761 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4762 # w32api 3.12 had it defined wrong
4763 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4765 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4766 { check_header dev/bktr/ioctl_meteor.h &&
4767 check_header dev/bktr/ioctl_bt848.h; } ||
4768 { check_header machine/ioctl_meteor.h &&
4769 check_header machine/ioctl_bt848.h; } ||
4770 { check_header dev/video/meteor/ioctl_meteor.h &&
4771 check_header dev/video/bktr/ioctl_bt848.h; } ||
4772 check_header dev/ic/bt8xx.h
4774 check_header sndio.h
4775 check_header sys/soundcard.h
4776 check_header soundcard.h
4778 enabled_any alsa_indev alsa_outdev &&
4779 check_lib alsa/asoundlib.h snd_pcm_htimestamp -lasound
4781 enabled jack_indev && check_lib jack/jack.h jack_client_open -ljack &&
4782 check_func jack_port_get_latency_range -ljack
4784 enabled_any sndio_indev sndio_outdev && check_lib sndio.h sio_open -lsndio
4786 if enabled libcdio; then
4787 check_lib "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4788 check_lib "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4789 die "ERROR: No usable libcdio/cdparanoia found"
4792 if enabled libxcb; then
4793 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4794 enabled libxcb && die "ERROR: libxcb not found";
4797 disabled libxcb_shm ||
4798 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4799 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4800 } && check_header sys/shm.h && enable libxcb_shm
4802 disabled libxcb_xfixes ||
4803 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4804 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4805 } && enable libxcb_xfixes
4807 add_cflags "$xcb_shape_cflags $xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4808 add_extralibs "$xcb_shape_libs $xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4811 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4814 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4818 check_lib "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
4822 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4825 enabled_any vaapi vdpau && check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4827 enabled vaapi && enabled xlib &&
4828 check_lib "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4831 enabled vdpau && enabled xlib &&
4832 check_lib "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4835 enabled debug && add_cflags -g"$debuglevel" && add_asflags&n