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:$PATH
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-filters show all available filters
79 --logfile=FILE log tests and output to FILE [avbuild/config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix_default]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs (USE WITH CARE)
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
114 --disable-doc do not build documentation
115 --disable-pod2man do not build manual pages
116 --disable-texi2html do not build HTML documentation
117 --disable-avdevice disable libavdevice build
118 --disable-avcodec disable libavcodec build
119 --disable-avformat disable libavformat build
120 --disable-avutil disable libavutil build
121 --disable-swscale disable libswscale build
122 --disable-avfilter disable video filter support [no]
123 --disable-avresample disable libavresample build [no]
124 --disable-pthreads disable pthreads [auto]
125 --disable-w32threads disable Win32 threads [auto]
126 --disable-network disable network support [no]
127 --disable-dct disable DCT code
128 --disable-error-resilience disable error resilience code
129 --disable-lsp disable LSP code
130 --disable-lzo disable LZO decoder code
131 --disable-mdct disable MDCT code
132 --disable-rdft disable RDFT code
133 --disable-fft disable FFT code
134 --disable-faan disable floating point AAN (I)DCT code
136 Individual component options:
137 --disable-everything disable all components listed below
138 --disable-encoder=NAME disable encoder NAME
139 --enable-encoder=NAME enable encoder NAME
140 --disable-encoders disable all encoders
141 --disable-decoder=NAME disable decoder NAME
142 --enable-decoder=NAME enable decoder NAME
143 --disable-decoders disable all decoders
144 --disable-hwaccel=NAME disable hwaccel NAME
145 --enable-hwaccel=NAME enable hwaccel NAME
146 --disable-hwaccels disable all hwaccels
147 --disable-muxer=NAME disable muxer NAME
148 --enable-muxer=NAME enable muxer NAME
149 --disable-muxers disable all muxers
150 --disable-demuxer=NAME disable demuxer NAME
151 --enable-demuxer=NAME enable demuxer NAME
152 --disable-demuxers disable all demuxers
153 --enable-parser=NAME enable parser NAME
154 --disable-parser=NAME disable parser NAME
155 --disable-parsers disable all parsers
156 --enable-bsf=NAME enable bitstream filter NAME
157 --disable-bsf=NAME disable bitstream filter NAME
158 --disable-bsfs disable all bitstream filters
159 --enable-protocol=NAME enable protocol NAME
160 --disable-protocol=NAME disable protocol NAME
161 --disable-protocols disable all protocols
162 --enable-indev=NAME enable input device NAME
163 --disable-indev=NAME disable input device NAME
164 --disable-indevs disable input devices
165 --disable-devices disable all devices
166 --enable-filter=NAME enable filter NAME
167 --disable-filter=NAME disable filter NAME
168 --disable-filters disable all filters
170 External library support:
172 Using any of the following switches will allow Libav to link to the
173 corresponding external library. All the components depending on that library
174 will become enabled, if all their other dependencies are met and they are not
175 explicitly disabled. E.g. --enable-libwavpack will enable linking to
176 libwavpack and allow the libwavpack encoder to be built, unless it is
177 specifically disabled with --disable-encoder=libwavpack.
179 Note that only the system libraries are auto-detected. All the other external
180 libraries must be explicitly enabled.
182 Also note that the following help text describes the purpose of the libraries
183 themselves, not all their features will necessarily be usable by Libav.
185 --enable-avisynth video frameserver
186 --enable-avxsynth Linux version of AviSynth
187 --enable-bzlib bzip2 compression [autodetect]
188 --enable-frei0r video filtering plugins
189 --enable-gnutls crypto
190 --enable-libbs2b Bauer stereophonic-to-binaural DSP
191 --enable-libcdio audio CD input
192 --enable-libdc1394 IEEE 1394/Firewire camera input
193 --enable-libdcadec DCA audio decoding
194 --enable-libfaac AAC audio encoding
195 --enable-libfdk-aac AAC audio encoding/decoding
196 --enable-libfontconfig font configuration and management
197 --enable-libfreetype font rendering
198 --enable-libgsm GSM audio encoding/decoding
199 --enable-libhdcd HDCD decoding filter
200 --enable-libilbc ILBC audio encoding/decoding
201 --enable-libjack JACK audio sound server
202 --enable-libkvazaar HEVC video encoding
203 --enable-libmp3lame MP3 audio encoding
204 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
205 --enable-libopencore-amrwb AMR-WB audio decoding
206 --enable-libopencv computer vision
207 --enable-libopenh264 H.264 video encoding/decoding
208 --enable-libopenjpeg JPEG 2000 image encoding/decoding
209 --enable-libopus Opus audio encoding/decoding
210 --enable-libpulse Pulseaudio sound server
211 --enable-librtmp RTMP streaming
212 --enable-libschroedinger Dirac video encoding/decoding
213 --enable-libsnappy snappy compression
214 --enable-libspeex Speex audio encoding/decoding
215 --enable-libtheora Theora video encoding/decoding
216 --enable-libtwolame MP2 audio encoding
217 --enable-libvo-aacenc AAC audio encoding
218 --enable-libvo-amrwbenc AMR-WB audio encoding
219 --enable-libvorbis Vorbis audio encoding/decoding
220 --enable-libvpx VP* video encoding/decoding
221 --enable-libwavpack Wavpack audio encoding/decoding
222 --enable-libwebp WebP image encoding/decoding
223 --enable-libx264 H.264 video encoding
224 --enable-libx265 HEVC video encoding
225 --enable-libxavs Chinese AVS video encoding
226 --enable-libxcb X window system protocol communication
227 --enable-libxcb-shm X11 shm communication [auto]
228 --enable-libxcb-xfixes X11 mouse rendering [auto]
229 --enable-libxvid MPEG-4 ASP video encoding
230 --enable-openssl crypto
231 --enable-zlib compression [autodetect]
233 The following libraries provide various hardware acceleration features:
234 --enable-cuda Nvidia CUDA (dynamically linked)
235 --enable-cuvid Nvidia CUVID video decode acceleration
236 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
237 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
238 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
239 --enable-libnpp Nvidia CUDA processing
240 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
241 --enable-nvenc Nvidia video encoding
242 --enable-omx OpenMAX IL
243 --enable-omx-rpi OpenMAX IL for Raspberry Pi
244 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
245 --enable-vda Apple Video Decode Acceleration [auto]
246 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
249 --arch=ARCH select architecture [$arch]
250 --cpu=CPU select the minimum required CPU (affects
251 instruction selection, may crash on older CPUs)
252 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
253 --enable-cross-compile assume a cross-compiler is used
254 --sysroot=PATH root of cross-build tree
255 --sysinclude=PATH location of cross-build system headers
256 --target-os=OS compiler targets OS [$target_os]
257 --target-exec=CMD command to run executables on target
258 --target-path=DIR path to view of build directory on target
259 --target-samples=DIR path to samples directory on target
260 --toolchain=NAME set tool defaults according to NAME
262 --ar=AR use archive tool AR [$ar_default]
263 --as=AS use assembler AS [$as_default]
264 --cc=CC use C compiler CC [$cc_default]
265 --objcc=OCC use ObjC compiler OCC [$cc_default]
266 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
267 --ld=LD use linker LD
268 --x86asmexe=X86ASM use x86 assembler X86ASM
269 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
270 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
271 --host-cc=HOSTCC use host C compiler HOSTCC
272 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
273 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
274 --host-ld=HOSTLD use host linker HOSTLD
275 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
276 --host-libs=HLIBS use libs HLIBS when linking for host
277 --host-os=OS compiler host OS [$target_os]
278 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
279 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
280 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
281 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
282 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
283 --extra-libs=ELIBS add ELIBS [$ELIBS]
284 --extra-version=STRING version string suffix []
285 --optflags=OPTFLAGS override optimization-related compiler flags
286 --enable-pic build position-independent code
287 --enable-thumb compile for Thumb instruction set
288 --enable-lto use link-time optimization
289 --env="ENV=override" override the environment variables
291 Advanced options (experts only):
292 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
293 --custom-allocator=NAME use a supported custom allocator
294 --disable-symver disable symbol versioning
295 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
296 --disable-safe-bitstream-reader
297 disable buffer boundary checking in bitreaders
298 (faster, but may crash)
299 --enable-sram allow use of on-chip SRAM
301 Optimization options (experts only):
302 --disable-asm disable all assembly optimizations
303 --disable-altivec disable AltiVec optimizations
304 --disable-vsx disable VSX optimizations
305 --disable-power8 disable POWER8 optimizations
306 --disable-amd3dnow disable 3DNow! optimizations
307 --disable-amd3dnowext disable 3DNow! extended optimizations
308 --disable-mmx disable MMX optimizations
309 --disable-mmxext disable MMXEXT optimizations
310 --disable-sse disable SSE optimizations
311 --disable-sse2 disable SSE2 optimizations
312 --disable-sse3 disable SSE3 optimizations
313 --disable-ssse3 disable SSSE3 optimizations
314 --disable-sse4 disable SSE4 optimizations
315 --disable-sse42 disable SSE4.2 optimizations
316 --disable-avx disable AVX optimizations
317 --disable-xop disable XOP optimizations
318 --disable-fma3 disable FMA3 optimizations
319 --disable-fma4 disable FMA4 optimizations
320 --disable-avx2 disable AVX2 optimizations
321 --disable-armv5te disable armv5te optimizations
322 --disable-armv6 disable armv6 optimizations
323 --disable-armv6t2 disable armv6t2 optimizations
324 --disable-vfp disable VFP optimizations
325 --disable-neon disable NEON optimizations
326 --disable-inline-asm disable use of inline assembly
327 --disable-x86asm disable use of standalone x86 assembly
329 Developer options (useful when working on Libav itself):
330 --disable-debug disable debugging symbols
331 --enable-debug=LEVEL set the debug level [$debuglevel]
332 --disable-optimizations disable compiler optimizations
333 --enable-extra-warnings enable more compiler warnings
334 --samples=PATH location of test samples for FATE, if not set use
335 \$LIBAV_SAMPLES at make invocation time.
336 --enable-neon-clobber-test check NEON registers for clobbering (should be
337 used only for debugging purposes)
338 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
339 should be used only for debugging purposes)
340 --disable-valgrind-backtrace do not print a backtrace under Valgrind
341 (only applies to --disable-optimizations builds)
342 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
343 in the name) of tests whose result is ignored
345 NOTE: Object files are built at the place where configure is launched.
353 echo "$@" >> $logfile
360 printf '%5s %s\n' "${i}" "${line}"
362 done < $1 >> $logfile
373 WARNINGS="${WARNINGS}WARNING: $*\n"
380 If you think configure made a mistake, make sure you are using the latest
381 version from Git. If the latest version fails, report the problem to the
382 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
384 if disabled logging; then
386 Rerun configure with logging enabled (do not use --disable-logging), and
387 include the log this produces with your report.
391 Include the log file "$logfile" produced by configure as this will help
398 # Avoid locale weirdness, besides we really just want to translate ASCII.
400 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
404 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
408 echo "$*" | sed 's/["\\]/\\\0/g'
412 v=$(echo "$1" | sed "s/'/'\\\\''/g")
413 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
418 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
425 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
433 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
440 for v; do eval $m; done
446 for v; do echo ${v}${suffix}; done
461 eval : \${$var:=$value}
466 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
472 eval $(sanitize_var_name "$var")='$*'
476 eval echo \$$(sanitize_var_name "$1")
481 eval level=\${${pvar}_level:=0}
482 eval ${pvar}_${level}="\$$pvar"
483 eval ${pvar}_level=$(($level+1))
489 eval level=\${${pvar}_level:-0}
490 test $level = 0 && continue
491 eval level=$(($level-1))
492 eval $pvar="\${${pvar}_${level}}"
493 eval ${pvar}_level=$level
494 eval unset ${pvar}_${level}
516 enable $(sanitize_var_name $var)
522 disable $(sanitize_var_name $var)
528 enabled $var && continue
529 eval sel="\$${var}_select"
530 eval sgs="\$${var}_suggest"
534 enable_deep_weak $sgs
546 disabled $var && continue
555 test "${1#!}" = "$1" && op="=" || op="!="
556 eval test "x\$${1#!}" $op "xyes"
560 test "${1#!}" = "$1" && op="=" || op="!="
561 eval test "x\$${1#!}" $op "xno"
566 enabled $opt || return 1
572 disabled $opt || return 1
578 enabled $opt && return 0
584 disabled $opt && return 0
591 eval : \${$opt:=\$${opt}_default}
599 [ $var = $value ] && return 0
606 enabled ${cfg}_checking && die "Circular dependency for $cfg."
607 disabled ${cfg}_checking && continue
608 enable ${cfg}_checking
610 eval dep_all="\$${cfg}_deps"
611 eval dep_any="\$${cfg}_deps_any"
612 eval dep_con="\$${cfg}_conflict"
613 eval dep_sel="\$${cfg}_select"
614 eval dep_sgs="\$${cfg}_suggest"
615 eval dep_ifa="\$${cfg}_if"
616 eval dep_ifn="\$${cfg}_if_any"
618 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
619 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
620 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
622 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
623 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
624 enabled_all $dep_all || disable $cfg
625 enabled_any $dep_any || disable $cfg
626 disabled_all $dep_con || disable $cfg
627 disabled_any $dep_sel && disable $cfg
629 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
631 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
632 # filter out library deps, these do not belong in extralibs
633 is_in $dep $LIBRARY_LIST && continue
634 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
637 disable ${cfg}_checking
645 map 'eval echo "$v \${$v:-no}"' "$@" |
646 awk "BEGIN { split(\"$files\", files) }
648 c = \"$pfx\" toupper(\$1);
654 if (file ~ /\\.h\$/) {
655 printf(\"#define %s %d\\n\", c, v) >>file;
656 } else if (file ~ /\\.asm\$/) {
657 printf(\"%%define %s %d\\n\", c, v) >>file;
658 } else if (file ~ /\\.mak\$/) {
659 n = -v ? \"\" : \"!\";
660 printf(\"%s%s=yes\\n\", n, c) >>file;
670 enabled $v && printf "%s\n" ${v%$suf}
677 eval "$var=\"\$$var $*\""
683 eval "$var=\"$* \$$var\""
689 for tok in $(eval echo \$$var); do
690 uniq_list="$(filter_out $tok $uniq_list) $tok"
692 eval "$var=\"${uniq_list}\""
698 for entry in $(eval echo \$$var); do
699 tmpvar="$tmpvar $(eval echo \$${entry})"
701 eval "$var=\"${tmpvar}\""
709 append CFLAGS $($cflags_filter "$@")
712 add_cflags_headers(){
713 append CFLAGS_HEADERS $($cflags_filter "$@")
717 append ASFLAGS $($asflags_filter "$@")
721 append OBJCFLAGS $($objcflags_filter "$@")
725 append LDFLAGS $($ldflags_filter "$@")
729 append LDEXEFLAGS $($ldflags_filter "$@")
733 append LDSOFLAGS $($ldflags_filter "$@")
737 append STRIPFLAGS "$@"
741 prepend extralibs $($ldflags_filter "$@")
745 append host_cppflags "$@"
749 append host_cflags $($host_cflags_filter "$@")
753 append host_ldflags $($host_ldflags_filter "$@")
757 append compat_objs $1
759 map 'add_cppflags -D$v' "$@"
764 "$@" >> $logfile 2>&1
768 eval printf '%s\\n' $CC_O
772 eval printf '%s\\n' $CC_E
779 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
786 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
793 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
797 eval printf '%s\\n' $AS_O
804 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
808 log check_inline_asm "$@"
813 check_cc "$@" <<EOF && enable $name
814 void foo(void){ __asm__ volatile($code); }
820 check_inline_asm ${1}_inline "\"$2\""
821 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
825 log check_x86asm "$@"
829 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
833 eval printf '%s\\n' $LD_O
838 flags=$(filter_out '-l*' "$@")
839 libs=$(filter '-l*' "$@")
840 check_cc $($cflags_filter $flags) || return
841 flags=$($ldflags_filter $flags)
842 libs=$($ldflags_filter $libs)
843 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
848 test "${hdr%.h}" = "${hdr}" &&
849 echo "#include $hdr" ||
850 echo "#include <$hdr>"
860 for hdr in $headers; do
863 echo "int main(void) { $code; return 0; }"
864 } | check_$check "$@"
868 log check_cppflags "$@"
869 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
876 set -- $($cflags_filter "$@")
883 log check_cflags "$@"
884 test_cflags "$@" && add_cflags "$@"
888 log test_objcflags "$@"
889 set -- $($objcflags_filter "$@")
890 check_objcc "$@" <<EOF
896 log check_objcflags "$@"
897 test_objcflags "$@" && add_objcflags "$@"
901 log test_ldflags "$@"
902 set -- $($ldflags_filter "$@")
904 int main(void){ return 0; }
909 log check_ldflags "$@"
910 test_ldflags "$@" && add_ldflags "$@"
914 log test_stripflags "$@"
915 # call check_cc to get a fresh TMPO
917 int main(void) { return 0; }
919 check_cmd $strip $STRIPFLAGS "$@" $TMPO
923 log check_stripflags "$@"
924 test_stripflags "$@" && add_stripflags "$@"
928 log check_header "$@"
931 disable_sanitized $headers
933 for hdr in $headers; do
937 } | check_cpp "$@" && enable_sanitized $headers
945 check_ld "$@" <<EOF && enable $func
947 int main(void){ $func(); }
952 log check_mathfunc "$@"
956 test $narg = 2 && args="f, g" || args="f"
958 check_ld "$@" <<EOF && enable $func
960 float foo(float f, float g) { return $func($args); }
961 int main(void){ return 0; }
965 check_func_headers(){
966 log check_func_headers "$@"
971 for hdr in $headers; do
974 for func in $funcs; do
975 echo "long check_$func(void) { return (long) $func; }"
977 echo "int main(void) { return 0; }"
978 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
981 check_cpp_condition(){
982 log check_cpp_condition "$@"
989 #error "unsatisfied condition: $condition"
995 log test_cflags_cpp "$@"
999 set -- $($cflags_filter "$flags")
1000 check_cpp "$@" <<EOF
1002 #error "unsatisfied condition: $condition"
1014 check_func_headers "$headers" "$funcs" "$@" &&
1015 enable $name && eval ${name}_extralibs="\$@"
1019 log test_pkg_config "$@"
1027 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1028 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1029 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1030 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1032 set_sanitized "${name}_cflags" $pkg_cflags &&
1033 set_sanitized "${name}_extralibs" $pkg_libs
1037 log check_pkg_config "$@"
1039 test_pkg_config "$@" &&
1040 eval add_cflags \$${name}_cflags
1044 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1048 log check_exec_crash "$@"
1051 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1052 # are safe but may not be available everywhere. Thus we use
1053 # raise(SIGTERM) instead. The check is run in a subshell so we
1054 # can redirect the "Terminated" message from the shell. SIGBUS
1055 # is not defined by standard C so it is used conditionally.
1057 (check_exec "$@") >> $logfile 2>&1 <<EOF
1059 static void sighandler(int sig){
1065 int (*func_ptr)(void) = foo;
1067 signal(SIGILL, sighandler);
1068 signal(SIGFPE, sighandler);
1069 signal(SIGSEGV, sighandler);
1071 signal(SIGBUS, sighandler);
1083 disable_sanitized "$type"
1084 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1088 log check_struct "$@"
1093 disable_sanitized "${struct}_${member}"
1094 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1095 enable_sanitized "${struct}_${member}"
1099 log check_builtin "$@"
1105 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1108 check_compile_assert(){
1109 log check_compile_assert "$@"
1115 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1125 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1129 log require_header "$@"
1132 check_header "$headers" "$@" || die "ERROR: $headers not found"
1135 require_cpp_condition(){
1136 log require_cpp_condition "$@"
1140 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1143 require_pkg_config(){
1144 log require_pkg_config "$@"
1146 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1150 eval printf '%s\\n' $HOSTCC_E
1154 eval printf '%s\\n' $HOSTCC_O
1158 log check_host_cc "$@"
1161 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1165 log check_host_cpp "$@"
1168 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1171 check_host_cppflags(){
1172 log check_host_cppflags "$@"
1173 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1174 #include <stdlib.h>;
1178 check_host_cflags(){
1179 log check_host_cflags "$@"
1180 set -- $($host_cflags_filter "$@")
1181 check_host_cc "$@" <<EOF && append host_cflags "$@"
1186 check_host_cpp_condition(){
1187 log check_host_cpp_condition "$@"
1191 check_host_cpp "$@" <<EOF
1194 #error "unsatisfied condition: $condition"
1200 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1201 mkdir -p "$(dirname $2)"
1205 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1206 # system-dependent things.
1208 AVCODEC_COMPONENTS="
1216 AVDEVICE_COMPONENTS="
1219 AVFILTER_COMPONENTS="
1222 AVFORMAT_COMPONENTS="
1230 $AVDEVICE_COMPONENTS
1231 $AVFILTER_COMPONENTS
1232 $AVFORMAT_COMPONENTS
1236 decode_audio_example
1237 decode_video_example
1238 encode_audio_example
1239 encode_video_example
1240 filter_audio_example
1244 transcode_aac_example
1247 # catchall list of things that require external libs to link
1253 HWACCEL_LIBRARY_NONFREE_LIST="
1258 HWACCEL_LIBRARY_LIST="
1259 $HWACCEL_LIBRARY_NONFREE_LIST
1271 EXTERNAL_LIBRARY_GPL_LIST="
1279 EXTERNAL_LIBRARY_NONFREE_LIST="
1285 EXTERNAL_LIBRARY_VERSION3_LIST="
1292 EXTERNAL_LIBRARY_LIST="
1293 $EXTERNAL_LIBRARY_GPL_LIST
1294 $EXTERNAL_LIBRARY_NONFREE_LIST
1295 $EXTERNAL_LIBRARY_VERSION3_LIST
1331 SYSTEM_LIBRARY_LIST="
1341 safe_bitstream_reader
1384 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1387 $EXTERNAL_LIBRARY_LIST
1388 $HWACCEL_LIBRARY_LIST
1394 $SYSTEM_LIBRARY_LIST
1453 ARCH_EXT_LIST_X86_SIMD="
1481 $ARCH_EXT_LIST_X86_SIMD
1486 ARCH_EXT_LIST_MIPS="
1523 sync_val_compare_and_swap
1537 AVFoundation_AVFoundation_h
1540 cdio_paranoia_paranoia_h
1542 dev_bktr_ioctl_bt848_h
1543 dev_bktr_ioctl_meteor_h
1545 dev_video_bktr_ioctl_bt848_h
1546 dev_video_meteor_ioctl_meteor_h
1551 machine_ioctl_bt848_h
1552 machine_ioctl_meteor_h
1602 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1617 GetProcessAffinityMask
1618 GetProcessMemoryInfo
1621 GetSystemTimeAsFileTime
1635 SetConsoleTextAttribute
1655 TOOLCHAIN_FEATURES="
1676 CONDITION_VARIABLE_Ptr
1677 CUVIDDECODECREATEINFO_bitDepthMinus8
1680 struct_group_source_req
1681 struct_ip_mreq_source
1684 struct_rusage_ru_maxrss
1686 struct_sockaddr_sa_len
1687 struct_sockaddr_storage
1688 struct_v4l2_frmivalenum_discrete
1693 $(add_suffix _external $ARCH_EXT_LIST)
1694 $(add_suffix _inline $ARCH_EXT_LIST)
1710 # options emitted with CONFIG_ prefix but not available on the command line
1865 # code dependency declarations
1867 # architecture extensions
1872 armv8_deps="aarch64"
1873 neon_deps_any="aarch64 arm"
1874 intrinsics_neon_deps="neon"
1875 vfp_deps_any="aarch64 arm"
1878 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1887 loongson_deps="mips"
1888 mips32r1_deps="mips32"
1889 mips32r2_deps="mips32"
1890 mips32r6_deps="mips32"
1891 mips64r1_deps="mips64"
1892 mips64r2_deps="mips64"
1893 mips64r6_deps="mips64"
1898 x86_64_select="i686"
1899 x86_64_suggest="fast_cmov"
1902 amd3dnowext_deps="amd3dnow"
1918 mmx_external_deps="x86asm"
1919 mmx_inline_deps="inline_asm x86"
1920 mmx_suggest="mmx_external mmx_inline"
1922 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1923 eval dep=\$${ext}_deps
1924 eval ${ext}_external_deps='"${dep}_external"'
1925 eval ${ext}_inline_deps='"${dep}_inline"'
1926 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1929 aligned_stack_if_any="aarch64 ppc x86"
1930 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1931 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1932 fast_unaligned_if_any="aarch64 ppc x86"
1933 simd_align_16_if_any="altivec neon sse"
1934 simd_align_32_if_any="avx"
1936 # system capabilities
1937 symver_if_any="symver_asm_label symver_gnu_asm"
1938 valgrind_backtrace_conflict="optimizations"
1939 valgrind_backtrace_deps="valgrind_valgrind_h"
1942 atomics_gcc_if="sync_val_compare_and_swap"
1943 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1944 atomics_win32_if="MemoryBarrier"
1945 atomics_native_if_any="$ATOMICS_LIST"
1946 w32threads_deps="atomics_native"
1947 threads_if_any="$THREADS_LIST"
1950 cbs_h264_select="cbs golomb"
1951 cbs_h265_select="cbs golomb"
1952 cbs_mpeg2_select="cbs"
1954 dirac_parse_select="golomb"
1955 error_resilience_select="me_cmp"
1957 faandct_select="fdctdsp"
1958 faanidct_deps="faan"
1959 faanidct_select="idctdsp"
1960 h264dsp_select="startcode"
1961 hevcparse_select="golomb"
1962 intrax8_select="blockdsp idctdsp"
1965 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1966 mpeg_er_select="error_resilience"
1967 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1968 mpegaudiodsp_select="dct"
1969 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1970 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1971 vc1dsp_select="h264chroma qpeldsp startcode"
1973 # decoders / encoders
1974 aac_decoder_select="adts_header imdct15 mdct sinewin"
1975 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1976 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1977 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1978 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1979 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1980 adpcm_g722_decoder_select="g722dsp"
1981 adpcm_g722_encoder_select="g722dsp"
1982 aic_decoder_select="golomb idctdsp"
1983 alac_encoder_select="lpc"
1984 als_decoder_select="bswapdsp"
1985 amrnb_decoder_select="lsp"
1986 amrwb_decoder_select="lsp"
1987 amv_decoder_select="sp5x_decoder"
1988 ape_decoder_select="bswapdsp"
1989 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1990 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1991 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1992 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1993 atrac1_decoder_select="mdct sinewin"
1994 atrac3_decoder_select="mdct"
1995 atrac3p_decoder_select="mdct sinewin"
1996 bink_decoder_select="blockdsp hpeldsp"
1997 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1998 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1999 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2000 clearvideo_decoder_select="idctdsp"
2001 cllc_decoder_select="bswapdsp"
2002 comfortnoise_encoder_select="lpc"
2003 cook_decoder_select="audiodsp mdct sinewin"
2004 cscd_decoder_select="lzo"
2005 cscd_decoder_suggest="zlib"
2006 dca_decoder_select="fmtconvert mdct"
2007 dds_decoder_select="texturedsp"
2008 dnxhd_decoder_select="blockdsp idctdsp"
2009 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2010 dvvideo_decoder_select="dvprofile idctdsp"
2011 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2012 dxa_decoder_deps="zlib"
2013 dxv_decoder_select="lzf texturedsp"
2014 eac3_decoder_select="ac3_decoder"
2015 eac3_encoder_select="ac3_encoder"
2016 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2017 eatgq_decoder_select="aandcttables idctdsp"
2018 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2019 exr_decoder_deps="zlib"
2020 ffv1_decoder_select="rangecoder"
2021 ffv1_encoder_select="rangecoder"
2022 ffvhuff_decoder_select="huffyuv_decoder"
2023 ffvhuff_encoder_select="huffyuv_encoder"
2024 fic_decoder_select="golomb"
2025 flac_decoder_select="flacdsp"
2026 flac_encoder_select="bswapdsp flacdsp lpc"
2027 flashsv_decoder_deps="zlib"
2028 flashsv_encoder_deps="zlib"
2029 flashsv2_decoder_deps="zlib"
2030 flv_decoder_select="h263_decoder"
2031 flv_encoder_select="h263_encoder"
2032 fourxm_decoder_select="blockdsp bswapdsp"
2033 fraps_decoder_select="bswapdsp huffman"
2034 g2m_decoder_deps="zlib"
2035 g2m_decoder_select="blockdsp idctdsp jpegtables"
2036 h261_decoder_select="mpeg_er mpegvideo"
2037 h261_encoder_select="aandcttables mpegvideoenc"
2038 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2039 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2040 h263i_decoder_select="h263_decoder"
2041 h263p_encoder_select="h263_encoder"
2042 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2043 h264_decoder_suggest="error_resilience"
2044 hap_decoder_select="snappy texturedsp"
2045 hap_encoder_deps="libsnappy"
2046 hap_encoder_select="texturedspenc"
2047 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2048 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2049 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2050 iac_decoder_select="imc_decoder"
2051 imc_decoder_select="bswapdsp fft mdct sinewin"
2052 indeo3_decoder_select="hpeldsp"
2053 indeo4_decoder_select="ividsp"
2054 indeo5_decoder_select="ividsp"
2055 interplay_video_decoder_select="hpeldsp"
2056 jpegls_decoder_select="mjpeg_decoder"
2057 jv_decoder_select="blockdsp"
2058 lagarith_decoder_select="huffyuvdsp"
2059 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2060 magicyuv_decoder_select="huffyuvdsp"
2061 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2062 metasound_decoder_select="lsp mdct sinewin"
2063 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2064 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2065 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2066 mjpegb_decoder_select="mjpeg_decoder"
2067 mlp_decoder_select="mlp_parser"
2068 motionpixels_decoder_select="bswapdsp"
2069 mp1_decoder_select="mpegaudio"
2070 mp1float_decoder_select="mpegaudio"
2071 mp2_decoder_select="mpegaudio"
2072 mp2float_decoder_select="mpegaudio"
2073 mp3_decoder_select="mpegaudio"
2074 mp3adu_decoder_select="mpegaudio"
2075 mp3adufloat_decoder_select="mpegaudio"
2076 mp3float_decoder_select="mpegaudio"
2077 mp3on4_decoder_select="mpegaudio"
2078 mp3on4float_decoder_select="mpegaudio"
2079 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2080 mpc8_decoder_select="mpegaudiodsp"
2081 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2082 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2083 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2084 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2085 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2086 mpeg4_encoder_select="h263_encoder"
2087 msa1_decoder_select="mss34dsp"
2088 msmpeg4v1_decoder_select="h263_decoder"
2089 msmpeg4v2_decoder_select="h263_decoder"
2090 msmpeg4v2_encoder_select="h263_encoder"
2091 msmpeg4v3_decoder_select="h263_decoder"
2092 msmpeg4v3_encoder_select="h263_encoder"
2093 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2094 mts2_decoder_select="mss34dsp"
2095 mxpeg_decoder_select="mjpeg_decoder"
2096 nellymoser_decoder_select="mdct sinewin"
2097 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2098 nuv_decoder_select="idctdsp lzo"
2099 on2avc_decoder_select="mdct"
2100 opus_decoder_deps="avresample"
2101 opus_decoder_select="imdct15"
2102 png_decoder_deps="zlib"
2103 png_encoder_deps="zlib"
2104 png_encoder_select="huffyuvencdsp"
2105 prores_decoder_select="idctdsp"
2106 prores_encoder_select="fdctdsp"
2107 qcelp_decoder_select="lsp"
2108 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2109 ra_144_encoder_select="audio_frame_queue lpc"
2110 ralf_decoder_select="golomb"
2111 rscc_decoder_deps="zlib"
2112 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2113 rv10_encoder_select="h263_encoder"
2114 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2115 rv20_encoder_select="h263_encoder"
2116 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2117 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2118 screenpresso_decoder_deps="zlib"
2119 sipr_decoder_select="lsp"
2120 sp5x_decoder_select="mjpeg_decoder"
2121 svq1_decoder_select="hpeldsp"
2122 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2123 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2124 svq3_decoder_suggest="zlib"
2125 tak_decoder_select="audiodsp"
2126 tdsc_decoder_deps="zlib"
2127 tdsc_decoder_select="mjpeg_decoder"
2128 theora_decoder_select="vp3_decoder"
2129 thp_decoder_select="mjpeg_decoder"
2130 tiff_decoder_suggest="zlib"
2131 tiff_encoder_suggest="zlib"
2132 truehd_decoder_select="mlp_decoder"
2133 truemotion2_decoder_select="bswapdsp"
2134 truespeech_decoder_select="bswapdsp"
2135 tscc_decoder_deps="zlib"
2136 txd_decoder_select="texturedsp"
2137 twinvq_decoder_select="mdct lsp sinewin"
2138 utvideo_decoder_select="bswapdsp huffyuvdsp"
2139 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2140 vble_decoder_select="huffyuvdsp"
2141 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2142 vc1image_decoder_select="vc1_decoder"
2143 vorbis_decoder_select="mdct"
2144 vorbis_encoder_select="mdct"
2145 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2146 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2147 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2148 vp6a_decoder_select="vp6_decoder"
2149 vp6f_decoder_select="vp6_decoder"
2150 vp7_decoder_select="h264pred videodsp vp8dsp"
2151 vp8_decoder_select="h264pred videodsp vp8dsp"
2152 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2153 webp_decoder_select="vp8_decoder"
2154 wmapro_decoder_select="mdct sinewin wma_freqs"
2155 wmav1_decoder_select="mdct sinewin wma_freqs"
2156 wmav1_encoder_select="mdct sinewin wma_freqs"
2157 wmav2_decoder_select="mdct sinewin wma_freqs"
2158 wmav2_encoder_select="mdct sinewin wma_freqs"
2159 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2160 wmv1_decoder_select="h263_decoder"
2161 wmv1_encoder_select="h263_encoder"
2162 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2163 wmv2_encoder_select="h263_encoder wmv2dsp"
2164 wmv3_decoder_select="vc1_decoder"
2165 wmv3image_decoder_select="wmv3_decoder"
2166 zerocodec_decoder_deps="zlib"
2167 zlib_decoder_deps="zlib"
2168 zlib_encoder_deps="zlib"
2169 zmbv_decoder_deps="zlib"
2170 zmbv_encoder_deps="zlib"
2172 # hardware accelerators
2173 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2174 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2175 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2176 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2178 h263_vaapi_hwaccel_deps="vaapi"
2179 h263_vaapi_hwaccel_select="h263_decoder"
2180 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2181 h264_cuvid_hwaccel_select="h264_decoder"
2182 h264_d3d11va_hwaccel_deps="d3d11va"
2183 h264_d3d11va_hwaccel_select="h264_decoder"
2184 h264_d3d11va2_hwaccel_deps="d3d11va"
2185 h264_d3d11va2_hwaccel_select="h264_decoder"
2186 h264_dxva2_hwaccel_deps="dxva2"
2187 h264_dxva2_hwaccel_select="h264_decoder"
2188 h264_mmal_hwaccel_deps="mmal"
2189 h264_qsv_hwaccel_deps="libmfx"
2190 h264_vaapi_hwaccel_deps="vaapi"
2191 h264_vaapi_hwaccel_select="h264_decoder"
2192 h264_vda_hwaccel_deps="vda"
2193 h264_vda_hwaccel_select="h264_decoder"
2194 h264_vda_old_hwaccel_deps="vda"
2195 h264_vda_old_hwaccel_select="h264_decoder"
2196 h264_vdpau_hwaccel_deps="vdpau"
2197 h264_vdpau_hwaccel_select="h264_decoder"
2198 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2199 hevc_cuvid_hwaccel_select="hevc_decoder"
2200 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2201 hevc_d3d11va_hwaccel_select="hevc_decoder"
2202 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2203 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2204 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2205 hevc_dxva2_hwaccel_select="hevc_decoder"
2206 hevc_qsv_hwaccel_deps="libmfx"
2207 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2208 hevc_vaapi_hwaccel_select="hevc_decoder"
2209 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2210 hevc_vdpau_hwaccel_select="hevc_decoder"
2211 mpeg1_vdpau_hwaccel_deps="vdpau"
2212 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2213 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2214 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2215 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2216 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2217 mpeg2_dxva2_hwaccel_deps="dxva2"
2218 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2219 mpeg2_mmal_hwaccel_deps="mmal"
2220 mpeg2_qsv_hwaccel_deps="libmfx"
2221 mpeg2_vaapi_hwaccel_deps="vaapi"
2222 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2223 mpeg2_vdpau_hwaccel_deps="vdpau"
2224 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2225 mpeg4_vaapi_hwaccel_deps="vaapi"
2226 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2227 mpeg4_vdpau_hwaccel_deps="vdpau"
2228 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2229 vc1_d3d11va_hwaccel_deps="d3d11va"
2230 vc1_d3d11va_hwaccel_select="vc1_decoder"
2231 vc1_d3d11va2_hwaccel_deps="d3d11va"
2232 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2233 vc1_dxva2_hwaccel_deps="dxva2"
2234 vc1_dxva2_hwaccel_select="vc1_decoder"
2235 vc1_mmal_hwaccel_deps="mmal"
2236 vc1_qsv_hwaccel_deps="libmfx"
2237 vc1_vaapi_hwaccel_deps="vaapi"
2238 vc1_vaapi_hwaccel_select="vc1_decoder"
2239 vc1_vdpau_hwaccel_deps="vdpau"
2240 vc1_vdpau_hwaccel_select="vc1_decoder"
2241 vp8_qsv_hwaccel_deps="libmfx"
2242 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2243 vp8_vaapi_hwaccel_select="vp8_decoder"
2244 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2245 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2246 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2247 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2248 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2250 # hardware-accelerated codecs
2251 nvenc_deps_any="libdl LoadLibrary"
2252 omx_deps="libdl pthreads"
2253 omx_rpi_select="omx"
2258 vaapi_encode_deps="vaapi"
2260 hwupload_cuda_filter_deps="cuda"
2261 scale_npp_filter_deps="cuda libnpp"
2263 h264_mmal_decoder_deps="mmal"
2264 h264_nvenc_encoder_deps="nvenc"
2265 h264_omx_encoder_deps="omx"
2266 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2267 h264_qsv_encoder_select="qsvenc"
2268 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2269 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2270 hevc_nvenc_encoder_deps="nvenc"
2271 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2272 hevc_qsv_encoder_select="hevcparse qsvenc"
2273 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2274 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2275 mjpeg_qsv_encoder_deps="libmfx"
2276 mjpeg_qsv_encoder_select="qsvenc"
2277 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2278 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2279 mpeg2_mmal_decoder_deps="mmal"
2280 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2281 mpeg2_qsv_encoder_select="qsvenc"
2282 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2283 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2284 mpeg4_omx_encoder_deps="omx"
2285 vc1_mmal_decoder_deps="mmal"
2286 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2287 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2288 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2289 vp8_vaapi_encoder_select="vaapi_encode"
2290 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2291 vp9_vaapi_encoder_select="vaapi_encode"
2293 nvenc_h264_encoder_select="h264_nvenc_encoder"
2294 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2297 aac_parser_select="adts_header"
2298 h264_parser_select="golomb h264dsp h264parse"
2299 hevc_parser_select="hevcparse"
2300 mpegaudio_parser_select="mpegaudioheader"
2301 mpegvideo_parser_select="mpegvideo"
2302 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2303 vc1_parser_select="vc1dsp"
2306 aac_adtstoasc_bsf_select="adts_header"
2307 h264_metadata_bsf_select="cbs_h264"
2308 h264_redundant_pps_bsf_select="cbs_h264"
2309 hevc_metadata_bsf_select="cbs_h265"
2310 mjpeg2jpeg_bsf_select="jpegtables"
2311 mpeg2_metadata_bsf_select="cbs_mpeg2"
2312 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2314 # external libraries
2315 avisynth_deps="LoadLibrary"
2316 avxsynth_deps="libdl"
2317 avisynth_demuxer_deps_any="avisynth avxsynth"
2318 avisynth_demuxer_select="riffdec"
2319 libdcadec_decoder_deps="libdcadec"
2320 libfaac_encoder_deps="libfaac"
2321 libfaac_encoder_select="audio_frame_queue"
2322 libfdk_aac_decoder_deps="libfdk_aac"
2323 libfdk_aac_encoder_deps="libfdk_aac"
2324 libfdk_aac_encoder_select="audio_frame_queue"
2325 libgsm_decoder_deps="libgsm"
2326 libgsm_encoder_deps="libgsm"
2327 libgsm_ms_decoder_deps="libgsm"
2328 libgsm_ms_encoder_deps="libgsm"
2329 libilbc_decoder_deps="libilbc"
2330 libilbc_encoder_deps="libilbc"
2331 libkvazaar_encoder_deps="libkvazaar"
2332 libmp3lame_encoder_deps="libmp3lame"
2333 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2334 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2335 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2336 libopencore_amrnb_encoder_select="audio_frame_queue"
2337 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2338 libopenh264_decoder_deps="libopenh264"
2339 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2340 libopenh264_encoder_deps="libopenh264"
2341 libopenjpeg_decoder_deps="libopenjpeg"
2342 libopenjpeg_encoder_deps="libopenjpeg"
2343 libopus_decoder_deps="libopus"
2344 libopus_encoder_deps="libopus"
2345 libopus_encoder_select="audio_frame_queue"
2346 libschroedinger_decoder_deps="libschroedinger"
2347 libschroedinger_encoder_deps="libschroedinger"
2348 libspeex_decoder_deps="libspeex"
2349 libspeex_encoder_deps="libspeex"
2350 libspeex_encoder_select="audio_frame_queue"
2351 libtheora_encoder_deps="libtheora"
2352 libtwolame_encoder_deps="libtwolame"
2353 libvo_aacenc_encoder_deps="libvo_aacenc"
2354 libvo_aacenc_encoder_select="audio_frame_queue"
2355 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2356 libvorbis_encoder_deps="libvorbis"
2357 libvorbis_encoder_select="audio_frame_queue"
2358 libvpx_vp8_decoder_deps="libvpx"
2359 libvpx_vp8_encoder_deps="libvpx"
2360 libvpx_vp9_decoder_deps="libvpx"
2361 libvpx_vp9_encoder_deps="libvpx"
2362 libwavpack_encoder_deps="libwavpack"
2363 libwavpack_encoder_select="audio_frame_queue"
2364 libwebp_encoder_deps="libwebp"
2365 libx262_encoder_deps="libx262"
2366 libx264_encoder_deps="libx264"
2367 libx265_encoder_deps="libx265"
2368 libxavs_encoder_deps="libxavs"
2369 libxvid_encoder_deps="libxvid mkstemp"
2372 ac3_demuxer_select="ac3_parser"
2373 asf_demuxer_select="riffdec"
2374 asf_muxer_select="riffenc"
2375 asf_stream_muxer_select="asf_muxer"
2376 avi_demuxer_select="iso_media riffdec"
2377 avi_muxer_select="riffenc"
2378 caf_demuxer_select="iso_media riffdec"
2379 dash_muxer_select="mp4_muxer"
2380 dirac_demuxer_select="dirac_parser"
2381 dv_demuxer_select="dvprofile"
2382 dv_muxer_select="dvprofile"
2383 dxa_demuxer_select="riffdec"
2384 eac3_demuxer_select="ac3_parser"
2385 f4v_muxer_select="mov_muxer"
2386 flac_demuxer_select="flac_parser"
2387 hds_muxer_select="flv_muxer"
2388 hls_muxer_select="mpegts_muxer"
2389 ipod_muxer_select="mov_muxer"
2390 ismv_muxer_select="mov_muxer"
2391 matroska_audio_muxer_select="matroska_muxer"
2392 matroska_demuxer_select="iso_media riffdec"
2393 matroska_demuxer_suggest="bzlib lzo zlib"
2394 matroska_muxer_select="iso_media riffenc"
2395 mmf_muxer_select="riffenc"
2396 mov_demuxer_select="iso_media riffdec"
2397 mov_demuxer_suggest="zlib"
2398 mov_muxer_select="iso_media riffenc rtpenc_chain"
2399 mp3_demuxer_select="mpegaudio_parser"
2400 mp3_muxer_select="mpegaudioheader"
2401 mp4_muxer_select="mov_muxer"
2402 mpegts_demuxer_select="iso_media"
2403 mpegts_muxer_select="adts_muxer latm_muxer"
2404 mpegtsraw_demuxer_select="mpegts_demuxer"
2405 mxf_d10_muxer_select="mxf_muxer"
2406 nut_muxer_select="riffenc"
2407 nuv_demuxer_select="riffdec"
2408 oga_muxer_select="ogg_muxer"
2409 ogg_demuxer_select="dirac_parse"
2410 opus_muxer_select="ogg_muxer"
2411 psp_muxer_select="mov_muxer"
2412 rtp_demuxer_select="sdp_demuxer"
2413 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2414 rtsp_demuxer_select="http_protocol rtpdec"
2415 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2416 sap_demuxer_select="sdp_demuxer"
2417 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2418 sdp_demuxer_select="rtpdec"
2419 smoothstreaming_muxer_select="ismv_muxer"
2420 spdif_demuxer_select="adts_header"
2421 spdif_muxer_select="adts_header"
2422 spx_muxer_select="ogg_muxer"
2423 swf_demuxer_suggest="zlib"
2424 tak_demuxer_select="tak_parser"
2425 tg2_muxer_select="mov_muxer"
2426 tgp_muxer_select="mov_muxer"
2427 w64_demuxer_select="wav_demuxer"
2428 wav_demuxer_select="riffdec"
2429 wav_muxer_select="riffenc"
2430 webm_muxer_select="iso_media riffenc"
2431 wtv_demuxer_select="mpegts_demuxer riffdec"
2432 xmv_demuxer_select="riffdec"
2433 xwma_demuxer_select="riffdec"
2436 alsa_indev_deps="alsa"
2437 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2438 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2439 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2440 fbdev_indev_deps="linux_fb_h"
2441 jack_indev_deps="libjack"
2442 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2443 libcdio_indev_deps="libcdio"
2444 libdc1394_indev_deps="libdc1394"
2445 oss_indev_deps_any="sys_soundcard_h"
2446 pulse_indev_deps="libpulse"
2447 sndio_indev_deps="sndio"
2448 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2449 vfwcap_indev_deps="vfw32 vfwcap_defines"
2450 xcbgrab_indev_deps="libxcb libxcb_shape"
2451 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2454 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2455 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2456 ffrtmpcrypt_protocol_select="tcp_protocol"
2457 ffrtmphttp_protocol_conflict="librtmp_protocol"
2458 ffrtmphttp_protocol_select="http_protocol"
2459 gopher_protocol_select="network"
2460 http_protocol_select="tcp_protocol"
2461 http_protocol_suggest="zlib"
2462 httpproxy_protocol_select="tcp_protocol"
2463 httpproxy_protocol_suggest="zlib"
2464 https_protocol_select="tls_protocol"
2465 https_protocol_suggest="zlib"
2466 icecast_protocol_select="http_protocol"
2467 librtmp_protocol_deps="librtmp"
2468 librtmpe_protocol_deps="librtmp"
2469 librtmps_protocol_deps="librtmp"
2470 librtmpt_protocol_deps="librtmp"
2471 librtmpte_protocol_deps="librtmp"
2472 mmsh_protocol_select="http_protocol"
2473 mmst_protocol_select="network"
2474 rtmp_protocol_conflict="librtmp_protocol"
2475 rtmp_protocol_select="tcp_protocol"
2476 rtmp_protocol_suggest="zlib"
2477 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2478 rtmpe_protocol_suggest="zlib"
2479 rtmps_protocol_conflict="librtmp_protocol"
2480 rtmps_protocol_select="tls_protocol"
2481 rtmps_protocol_suggest="zlib"
2482 rtmpt_protocol_select="ffrtmphttp_protocol"
2483 rtmpt_protocol_suggest="zlib"
2484 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2485 rtmpte_protocol_suggest="zlib"
2486 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2487 rtmpts_protocol_suggest="zlib"
2488 rtp_protocol_select="udp_protocol"
2489 sctp_protocol_deps="struct_sctp_event_subscribe"
2490 sctp_protocol_select="network"
2491 srtp_protocol_select="rtp_protocol srtp"
2492 tcp_protocol_select="network"
2493 tls_protocol_deps_any="gnutls openssl"
2494 tls_protocol_select="tcp_protocol"
2495 udp_protocol_select="network"
2496 unix_protocol_deps="sys_un_h"
2497 unix_protocol_select="network"
2500 asyncts_filter_deps="avresample"
2501 blackframe_filter_deps="gpl"
2502 boxblur_filter_deps="gpl"
2503 bs2b_filter_deps="libbs2b"
2504 cropdetect_filter_deps="gpl"
2505 deinterlace_qsv_filter_deps="libmfx"
2506 deinterlace_vaapi_filter_deps="vaapi"
2507 delogo_filter_deps="gpl"
2508 drawtext_filter_deps="libfreetype"
2509 drawtext_filter_suggest="libfontconfig"
2510 frei0r_filter_deps="frei0r libdl"
2511 frei0r_src_filter_deps="frei0r libdl"
2512 hdcd_filter_deps="libhdcd"
2513 hqdn3d_filter_deps="gpl"
2514 interlace_filter_deps="gpl"
2515 movie_filter_deps="avcodec avformat"
2516 ocv_filter_deps="libopencv"
2517 overlay_qsv_filter_deps="libmfx"
2518 overlay_qsv_filter_select="qsvvpp"
2519 resample_filter_deps="avresample"
2520 scale_filter_deps="swscale"
2521 scale_qsv_filter_deps="libmfx"
2522 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2523 vpp_qsv_filter_deps="libmfx"
2524 vpp_qsv_filter_select="qsvvpp"
2527 decode_audio_example_deps="avcodec avutil"
2528 decode_video_example_deps="avcodec avutil"
2529 encode_audio_example_deps="avcodec avutil"
2530 encode_video_example_deps="avcodec avutil"
2531 filter_audio_example_deps="avfilter avutil"
2532 metadata_example_deps="avformat avutil"
2533 output_example_deps="avcodec avformat avresample avutil swscale"
2534 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2535 transcode_aac_example_deps="avcodec avformat avresample"
2538 cpu_init_extralibs="pthreads_extralibs"
2539 cws2fws_extralibs="zlib_extralibs"
2541 # libraries, in linking order
2542 avcodec_deps="avutil"
2543 avcodec_select="null_bsf"
2544 avdevice_deps="avformat avcodec avutil"
2545 avfilter_deps="avutil"
2546 avformat_deps="avcodec avutil"
2547 avformat_suggest="network"
2548 avresample_deps="avutil"
2549 swscale_deps="avutil"
2551 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2552 avdevice_extralibs="libm_extralibs"
2553 avformat_extralibs="libm_extralibs"
2554 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2555 avresample_extralibs="libm_extralibs"
2556 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2557 swscale_extralibs="libm_extralibs"
2560 avconv_deps="avcodec avfilter avformat avresample swscale"
2561 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2562 fps_filter null_filter resample_filter scale_filter
2564 avconv_suggest="psapi shell32"
2565 avplay_deps="avcodec avfilter avformat avresample sdl"
2566 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2567 avplay_suggest="shell32"
2568 avprobe_deps="avcodec avformat"
2569 avprobe_suggest="shell32"
2573 texi2html_deps="doc"
2575 # default parameters
2577 logfile="avbuild/config.log"
2579 # installation paths
2580 prefix_default="/usr/local"
2581 bindir_default='${prefix}/bin'
2582 datadir_default='${prefix}/share/avconv'
2583 docdir_default='${prefix}/share/doc/libav'
2584 incdir_default='${prefix}/include'
2585 libdir_default='${prefix}/lib'
2586 mandir_default='${prefix}/share/man'
2587 shlibdir_default="$libdir_default"
2592 host_cc_default="gcc"
2593 x86asmexe_default="nasm"
2596 pkg_config_default=pkg-config
2599 version_script='--version-script'
2602 arch_default=$(uname -m)
2607 target_os_default=$(tolower $(uname -s))
2608 host_os=$target_os_default
2610 # configurable options
2611 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2616 enable faan faandct faanidct
2617 enable optimizations
2618 enable safe_bitstream_reader
2620 enable swscale_alpha
2621 enable valgrind_backtrace
2623 # By default, enable only those hwaccels that have no external dependencies.
2624 enable d3d11va dxva2 vda vdpau
2626 # internal components are enabled by default
2627 enable $EXTRALIBS_LIST
2629 # Avoid external, non-system, libraries getting enabled by dependency resolution
2630 disable $EXTERNAL_LIBRARY_LIST
2633 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2636 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2639 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2640 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2641 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2642 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2643 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2644 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2645 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2668 host_extralibs='-lm'
2669 host_cflags_filter=echo
2670 host_ldflags_filter=echo
2672 target_path='$(CURDIR)'
2674 # since the object filename is not given with the -MM flag, the compiler
2675 # is only able to print the basename, and we must add the path ourselves
2676 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2682 if test -f configure; then
2685 source_path=$(cd $(dirname "$0"); pwd)
2686 echo "$source_path" | grep -q '[[:blank:]]' &&
2687 die "Out of tree builds are impossible with whitespace in source path."
2688 test -e "$source_path/config.h" &&
2689 die "Out of tree builds are impossible with config.h in source dir."
2696 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2702 file=$source_path/$3
2703 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2706 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2707 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2708 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2709 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2710 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2711 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2712 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2713 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2715 find_things_extern(){
2718 file=$source_path/$3
2719 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2722 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2723 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2725 AVCODEC_COMPONENTS_LIST="
2733 AVDEVICE_COMPONENTS_LIST="
2737 AVFILTER_COMPONENTS_LIST="
2741 AVFORMAT_COMPONENTS_LIST="
2748 $AVCODEC_COMPONENTS_LIST
2749 $AVDEVICE_COMPONENTS_LIST
2750 $AVFILTER_COMPONENTS_LIST
2751 $AVFORMAT_COMPONENTS_LIST
2754 for n in $COMPONENT_LIST; do
2755 v=$(toupper ${n%s})_LIST
2757 eval ${n}_if_any="\$$v"
2760 enable $ARCH_EXT_LIST
2763 echo "Unknown option \"$1\"."
2764 echo "See $0 --help for available options."
2769 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2775 echo $* | sed s/$suffix//g | print_3_columns
2785 --extra-ldexeflags=*)
2786 add_ldexeflags $optval
2788 --extra-ldsoflags=*)
2789 add_ldsoflags $optval
2792 add_extralibs $optval
2798 debuglevel="$optval"
2801 disable $PROGRAM_LIST
2803 --disable-everything)
2804 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2807 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2808 disable $LIBRARY_LIST $PROGRAM_LIST doc
2810 --enable-*=*|--disable-*=*)
2811 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2812 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2813 eval list=\$$(toupper $thing)_LIST
2814 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2815 $action $(filter "$name" $list)
2817 --enable-yasm|--disable-yasm)
2818 warn "The ${opt} option is only provided for compatibility and will be\n"\
2819 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2820 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2822 --enable-?*|--disable-?*)
2823 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2824 if is_in $option $COMPONENT_LIST; then
2825 test $action = disable && action=unset
2826 eval $action \$$(toupper ${option%s})_LIST
2827 elif is_in $option $CMDLINE_SELECT; then
2834 NAME="${opt#--list-}"
2835 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2837 eval show_list $NAME \$$(toupper $NAME)_LIST
2839 --help|-h) show_help
2841 --quiet|-q) quiet=yes
2844 optname="${opt%%=*}"
2845 optname="${optname#--}"
2846 optname=$(echo "$optname" | sed 's/-/_/g')
2847 if is_in $optname $CMDLINE_SET; then
2848 eval $optname='$optval'
2849 elif is_in $optname $CMDLINE_APPEND; then
2850 append $optname "$optval"
2862 disabled logging && logfile=/dev/null
2864 # we need to build at least one lib type
2865 if ! enabled_any static shared; then
2867 At least one library type must be built.
2868 Specify --enable-static to build the static libraries or --enable-shared to
2869 build the shared libraries as well. To only build the shared libraries specify
2870 --disable-static in addition to --enable-shared.
2875 # Die early if licensing-related configure options are incompatible.
2876 die_license_disabled() {
2877 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2880 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2881 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2882 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2884 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2886 enabled_all gnutls openssl &&
2887 die "GnuTLS and OpenSSL must not be enabled at the same time."
2889 # Disable all the library-specific components if the library itself
2890 # is disabled, see AVCODEC_LIST and following _LIST variables.
2892 disable_components(){
2893 disabled ${1} && disable $(
2894 eval components="\$$(toupper ${1})_COMPONENTS"
2895 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2899 map 'disable_components $v' $LIBRARY_LIST
2901 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2904 case "$toolchain" in
2906 cc_default="${toolchain%-asan}"
2907 add_cflags -fsanitize=address
2908 add_ldflags -fsanitize=address
2911 cc_default="${toolchain%-msan}"
2912 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2913 add_ldflags -fsanitize=memory
2916 cc_default="${toolchain%-tsan}"
2917 add_cflags -fsanitize=thread -fPIE
2918 add_ldflags -fsanitize=thread -pie
2919 case "$toolchain" in
2927 cc_default="${toolchain%-usan}"
2928 add_cflags -fsanitize=undefined
2929 add_ldflags -fsanitize=undefined
2930 case "$toolchain" in
2937 target_exec_default="valgrind"
2938 case "$toolchain" in
2940 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2943 target_exec_args="--track-origins=yes --leak-check=full"
2948 # Check whether the current MSVC version needs the C99 converter.
2949 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2950 # support enough of C99 to build libav. Default to the new
2951 # behaviour if the regexp was unable to match anything, since this
2952 # successfully parses the version number of existing supported
2953 # versions that require the converter (MSVC 2010 and 2012).
2954 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2955 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2958 cc_default="c99wrap cl"
2960 ld_default="$source_path/compat/windows/mslink"
2961 nm_default="dumpbin -symbols"
2965 as_default="armasm64"
2971 target_os_default="win32"
2972 # Use a relative path for TMPDIR. This makes sure all the
2973 # ffconf temp files are written with a relative path, avoiding
2974 # issues with msys/win32 path conversion for MSVC parameters
2975 # such as -Fo<file> or -out:<file>.
2981 nm_default="dumpbin -symbols"
2983 target_os_default="win32"
2987 add_cflags -fprofile-arcs -ftest-coverage
2988 add_ldflags -fprofile-arcs -ftest-coverage
2991 add_cflags -fprofile-arcs -ftest-coverage
2992 add_ldflags --coverage
2995 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2996 add_cflags -fno-strict-overflow -fstack-protector-all
2997 add_ldflags -Wl,-z,relro -Wl,-z,now
3000 die "Unknown toolchain $toolchain"
3004 test -n "$cross_prefix" && enable cross_compile
3006 if enabled cross_compile; then
3007 test -n "$arch" && test -n "$target_os" ||
3008 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3011 ar_default="${cross_prefix}${ar_default}"
3012 cc_default="${cross_prefix}${cc_default}"
3013 objcc_default="${cross_prefix}${objcc_default}"
3014 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3015 nm_default="${cross_prefix}${nm_default}"
3016 pkg_config_default="${cross_prefix}${pkg_config_default}"
3017 ranlib="${cross_prefix}${ranlib}"
3018 strip="${cross_prefix}${strip}"
3020 sysinclude_default="${sysroot}/usr/include"
3022 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3023 enabled cross_compile || host_cc_default=$cc
3026 if ! $pkg_config --version >/dev/null 2>&1; then
3027 warn "$pkg_config not found, library detection may fail."
3033 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3037 EXESUF=$(exesuf $target_os)
3038 HOSTEXESUF=$(exesuf $host_os)
3040 # set temporary file name
3041 : ${TMPDIR:=$TEMPDIR}
3045 if ! check_cmd mktemp -u XXXXXX; then
3046 # simple replacement for missing mktemp
3047 # NOT SAFE FOR GENERAL USE
3049 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3055 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3056 die "Unable to create temporary directory in $TMPDIR."
3059 tmp="${AVTMPDIR}/test"$2
3060 (set -C; exec > $tmp) 2> /dev/null ||
3061 die "Unable to create temporary file in $AVTMPDIR."
3065 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3070 tmpfile TMPE $EXESUF
3081 # make sure we can execute files in $TMPDIR
3082 cat > $TMPSH 2>> $logfile <<EOF
3085 chmod +x $TMPSH >> $logfile 2>&1
3086 if ! $TMPSH >> $logfile 2>&1; then
3088 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3089 variable to another directory and make sure that it is not mounted noexec.
3091 die "Sanity test failed."
3097 # Filter out MSVC cl.exe options from cflags that shouldn't
3098 # be passed to gas-preprocessor
3108 -Wno-switch) echo -Wno-switch-enum ;;
3109 -Wno-format-zero-length) ;;
3110 -Wdisabled-optimization) ;;
3111 -Wno-pointer-sign) echo -Wno-other ;;
3117 msvc_common_flags(){
3120 # In addition to specifying certain flags under the compiler
3121 # specific filters, they must be specified here as well or else the
3122 # generic catch all at the bottom will print the original flag.
3127 -fomit-frame-pointer) ;;
3131 -fno-signed-zeros) ;;
3135 -lz) echo zlib.lib ;;
3136 -lx264) echo libx264.lib ;;
3137 -l*) echo ${flag#-l}.lib ;;
3138 -L*) echo -libpath:${flag#-L} ;;
3145 msvc_common_flags "$@"
3148 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3150 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3151 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3152 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3153 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3159 msvc_common_flags "$@"
3162 # Despite what Intel's documentation says -Wall, which is supported
3163 # on Windows, does enable remarks so disable them here.
3164 -Wall) echo $flag -Qdiag-disable:remark ;;
3165 -std=c99) echo -Qstd=c99 ;;
3174 case "${flag#*=}" in
3175 native) echo -xtarget=native ;;
3176 v9|niagara) echo -xarch=sparc ;;
3177 ultrasparc) echo -xarch=sparcvis ;;
3178 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3179 i586|pentium) echo -xchip=pentium ;;
3180 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3181 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3182 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3183 pentium4*) echo -xtarget=pentium4 ;;
3184 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3185 *-sse3) echo -xarch=sse3 ;;
3186 core2) echo -xarch=ssse3 -xchip=core2 ;;
3187 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3188 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3189 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3190 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3191 k8|opteron|athlon64|athlon-fx)
3192 echo -xarch=sse2a ;;
3193 athlon*) echo -xarch=pentium_proa ;;
3196 -std=c99) echo -xc99 ;;
3197 -fomit-frame-pointer) echo -xregs=frameptr ;;
3198 -fPIC) echo -KPIC -xcode=pic32 ;;
3199 -W*,*) echo $flag ;;
3200 -f*-*|-W*|-mimpure-text) ;;
3211 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3212 unset _ld_o _ldflags _ld_lib _ld_path
3213 unset _depflags _DEPCMD _DEPFLAGS
3216 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3218 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3219 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3220 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3223 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3225 gcc_version=$($_cc --version | head -n1)
3226 gcc_basever=$($_cc -dumpversion)
3227 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3228 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3229 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3230 if ! $_cc -dumpversion | grep -q '^2\.'; then
3231 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3235 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3237 _ident=$($_cc --version | head -n1)
3242 elif $_cc -v 2>&1 | grep -q xlc; then
3244 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3246 _cflags_size='-O5 -qcompact'
3247 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3248 test -d "$sysroot" || die "No valid sysroot specified."
3250 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3251 armcc_conf="$PWD/armcc.conf"
3252 $_cc --arm_linux_configure \
3253 --arm_linux_config_file="$armcc_conf" \
3254 --configure_sysroot="$sysroot" \
3255 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3256 die "Error creating armcc configuration file."
3257 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3258 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3259 as_default="${cross_prefix}gcc"
3263 elif $_cc -v 2>&1 | grep -q clang; then
3265 _ident=$($_cc --version 2>/dev/null | head -n1)
3266 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3269 elif $_cc -V 2>&1 | grep -q Sun; then
3271 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3272 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3273 _DEPFLAGS='-xM1 -xc99'
3276 _cflags_size='-O5 -xspace'
3277 _flags_filter=suncc_flags
3278 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3280 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3281 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3284 _flags_filter='filter_out -Wdisabled-optimization'
3285 elif $_cc -v 2>&1 | grep -q Open64; then
3287 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3288 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3291 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3292 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3294 _ident=$($_cc | head -n1)
3295 # 4509: "This form of conditional instruction is deprecated"
3296 _flags="-nologo -ignore 4509"
3297 _flags_filter=armasm_flags
3298 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3300 _ident=$($_cc 2>&1 | head -n1)
3301 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3302 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3306 if $_cc -nologo- 2>&1 | grep -q Linker; then
3313 _flags_filter=msvc_flags
3315 _ld_path='-libpath:'
3317 elif $_cc 2>&1 | grep -q Intel; then
3319 _ident=$($_cc 2>&1 | head -n1)
3320 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3321 # Not only is O3 broken on 13.x+ but it is slower on all previous
3322 # versions (tested) as well.
3324 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3325 if $_cc 2>&1 | grep -q Linker; then
3332 _flags_filter=icl_flags
3334 _ld_path='-libpath:'
3335 # -Qdiag-error to make icl error when seeing certain unknown arguments
3336 _flags='-nologo -Qdiag-error:4044,10157'
3337 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3338 # with MSVC which enables it by default.
3339 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3340 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3341 # lld can emulate multiple different linkers; in ms link.exe mode,
3342 # the -? parameter gives the help output which contains an identifyable
3343 # string, while it gives an error in other modes.
3345 # The link.exe mode doesn't have a switch for getting the version,
3346 # but we can force it back to gnu mode and get the version from there.
3347 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3349 _flags_filter=msvc_flags
3351 _ld_path='-libpath:'
3352 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3354 _ident=$($_cc --version | head -n1)
3358 _flags_filter=cparser_flags
3361 eval ${pfx}_type=\$_type
3362 eval ${pfx}_ident=\$_ident
3366 eval ${1}_C=\${_cc_c-\${${1}_C}}
3367 eval ${1}_E=\${_cc_e-\${${1}_E}}
3368 eval ${1}_O=\${_cc_o-\${${1}_O}}
3370 if [ -n "$_depflags" ]; then
3371 eval ${1}_DEPFLAGS=\$_depflags
3373 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3374 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3375 eval DEP${1}FLAGS=\$_flags
3380 cflags_filter=$_flags_filter
3381 cflags_speed=$_cflags_speed
3382 cflags_size=$_cflags_size
3383 cflags_noopt=$_cflags_noopt
3384 add_cflags $_flags $_cflags
3385 cc_ldflags=$_ldflags
3388 probe_cc hostcc "$host_cc"
3389 host_cflags_filter=$_flags_filter
3390 host_cflags_speed=$_cflags_speed
3391 add_host_cflags $_flags $_cflags
3394 test -n "$cc_type" && enable $cc_type ||
3395 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3397 : ${as_default:=$cc}
3398 : ${objcc_default:=$cc}
3399 : ${dep_cc_default:=$cc}
3400 : ${ld_default:=$cc}
3401 : ${host_ld_default:=$host_cc}
3402 set_default ar as objcc dep_cc ld host_ld
3405 asflags_filter=$_flags_filter
3406 add_asflags $_flags $_cflags
3409 probe_cc objcc "$objcc"
3410 objcflags_filter=$_flags_filter
3411 add_objcflags $_flags $_cflags
3415 ldflags_filter=$_flags_filter
3416 add_ldflags $_flags $_ldflags
3417 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3419 LD_LIB=${_ld_lib-$LD_LIB}
3420 LD_PATH=${_ld_path-$LD_PATH}
3422 probe_cc hostld "$host_ld"
3423 host_ldflags_filter=$_flags_filter
3424 add_host_ldflags $_flags $_ldflags
3425 HOSTLD_O=${_ld_o-$HOSTLD_O}
3427 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3428 probe_cc depcc "$dep_cc"
3429 CCDEP=${_DEPCMD:-$DEPCMD}
3430 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3434 if $ar 2>&1 | grep -q Microsoft; then
3442 add_cflags $extra_cflags
3443 add_objcflags $extra_objcflags
3444 add_asflags $extra_cflags
3446 if test -n "$sysroot"; then
3449 add_cppflags --sysroot="$sysroot"
3450 add_ldflags --sysroot="$sysroot"
3455 if test "$cpu" = host; then
3456 enabled cross_compile &&
3457 die "--cpu=host makes no sense when cross-compiling."
3462 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3464 s/.*$1=\\([^ ]*\\).*/\\1/
3469 cpu=$(check_native -march || check_native -mcpu)
3473 test "${cpu:-host}" = host &&
3474 die "--cpu=host not supported with compiler $cc"
3477 # Deal with common $arch aliases
3501 "Power Macintosh"|ppc*|powerpc*)
3516 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3521 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3524 # Add processor-specific flags
3525 if enabled aarch64; then
3529 cpuflags="-march=$cpu"
3532 cpuflags="-mcpu=$cpu"
3536 elif enabled alpha; then
3538 cpuflags="-mcpu=$cpu"
3540 elif enabled arm; then
3543 check_cpp_condition stddef.h \
3544 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3549 if check_arm_arch 4; then echo armv4
3550 elif check_arm_arch 4T; then echo armv4t
3551 elif check_arm_arch 5; then echo armv5
3552 elif check_arm_arch 5E; then echo armv5e
3553 elif check_arm_arch 5T; then echo armv5t
3554 elif check_arm_arch 5TE; then echo armv5te
3555 elif check_arm_arch 5TEJ; then echo armv5te
3556 elif check_arm_arch 6; then echo armv6
3557 elif check_arm_arch 6J; then echo armv6j
3558 elif check_arm_arch 6K; then echo armv6k
3559 elif check_arm_arch 6Z; then echo armv6z
3560 elif check_arm_arch 6ZK; then echo armv6zk
3561 elif check_arm_arch 6T2; then echo armv6t2
3562 elif check_arm_arch 7; then echo armv7
3563 elif check_arm_arch 7A 7_A; then echo armv7-a
3564 elif check_arm_arch 7S; then echo armv7-a
3565 elif check_arm_arch 7R 7_R; then echo armv7-r
3566 elif check_arm_arch 7M 7_M; then echo armv7-m
3567 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3568 elif check_arm_arch 8A 8_A; then echo armv8-a
3572 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3576 cpuflags="-march=$cpu"
3577 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3580 cpuflags="-mcpu=$cpu"
3582 cortex-a*) subarch=armv7a ;;
3583 cortex-r*) subarch=armv7r ;;
3584 cortex-m*) enable thumb; subarch=armv7m ;;
3585 arm11*) subarch=armv6 ;;
3586 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3587 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3588 *) subarch=$(probe_arm_arch) ;;
3594 armv5t*) enable fast_clz ;;
3595 armv[6-8]*) enable fast_clz fast_unaligned ;;
3598 elif enabled avr32; then
3603 cpuflags="-mpart=$cpu"
3607 cpuflags="-march=$cpu"
3611 cpuflags="-mcpu=$cpu"
3615 cpuflags="-march=$cpu"
3619 elif enabled bfin; then
3621 cpuflags="-mcpu=$cpu"
3623 elif enabled mips; then
3625 cpuflags="-march=$cpu"
3627 elif enabled ppc; then
3631 case $(tolower $cpu) in
3632 601|ppc601|powerpc601)
3633 cpuflags="-mcpu=601"
3636 603*|ppc603*|powerpc603*)
3637 cpuflags="-mcpu=603"
3640 604*|ppc604*|powerpc604*)
3641 cpuflags="-mcpu=604"
3644 g3|75*|ppc75*|powerpc75*)
3645 cpuflags="-mcpu=750"
3648 g4|745*|ppc745*|powerpc745*)
3649 cpuflags="-mcpu=7450"
3652 74*|ppc74*|powerpc74*)
3653 cpuflags="-mcpu=7400"
3656 g5|970|ppc970|powerpc970)
3657 cpuflags="-mcpu=970"
3661 cpuflags="-mcpu=$cpu"
3665 cpuflags="-mcpu=$cpu"
3669 cpuflags="-mcpu=cell"
3674 cpuflags="-mcpu=e500mc"
3678 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3683 cpuflags="-mcpu=8540 -mhard-float"
3689 elif enabled sparc; then
3692 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3693 cpuflags="-mcpu=$cpu"
3695 ultrasparc*|niagara[234])
3696 cpuflags="-mcpu=$cpu"
3700 elif enabled x86; then
3704 cpuflags="-march=$cpu"
3708 # targets that do NOT support nopl and conditional mov (cmov)
3709 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3710 cpuflags="-march=$cpu"
3713 # targets that do support nopl and conditional mov (cmov)
3714 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3715 cpuflags="-march=$cpu"
3719 # targets that do support conditional mov but on which it's slow
3720 pentium4|pentium4m|prescott|nocona)
3721 cpuflags="-march=$cpu"
3729 if [ "$cpu" != generic ]; then
3730 add_cflags $cpuflags
3731 add_asflags $cpuflags
3732 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3735 # compiler sanity check
3737 int main(void){ return 0; }
3739 if test "$?" != 0; then
3740 echo "$cc is unable to create an executable file."
3741 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3742 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3743 echo "Only do this if you know what cross compiling means."
3745 die "C compiler test failed."
3748 add_cppflags -D_ISOC99_SOURCE
3750 # some compilers silently accept -std=c11, so we also need to check that the
3751 # version macro is defined properly
3752 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3753 add_cflags -std=c11 ||
3754 check_cflags -std=c99
3756 check_cppflags -D_FILE_OFFSET_BITS=64
3757 check_cppflags -D_LARGEFILE_SOURCE
3759 add_host_cppflags -D_ISOC99_SOURCE
3760 check_host_cflags -std=c99
3761 check_host_cflags -Wall
3762 check_host_cflags $host_cflags_speed
3768 check_code cc "" "int test[2*($expr) - 1]" &&
3769 subarch=$arch64 || subarch=$arch32
3777 check_64bit mips mips64 '_MIPS_SIM > 1'
3781 check_64bit parisc parisc64 'sizeof(void *) > 4'
3785 check_64bit ppc ppc64 'sizeof(void *) > 4'
3789 check_64bit s390 s390x 'sizeof(void *) > 4'
3793 check_64bit sparc sparc64 'sizeof(void *) > 4'
3797 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3798 if test "$subarch" = "x86_64"; then
3805 enabled spic && enable_weak pic
3807 enabled x86_64 && objformat=elf64 || objformat="elf32"
3813 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3814 enabled shared && add_ldflags -Wl,-brtl
3815 arflags='-Xany -r -c'
3819 enable section_data_rel_ro
3820 SLIB_INSTALL_NAME='$(SLIBNAME)'
3822 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3825 prefix_default="/boot/common"
3826 network_extralibs="-lnetwork"
3830 SHFLAGS='-shared -Wl,-h,$$(@F)'
3831 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3832 network_extralibs="-lsocket -lnsl"
3833 # When using suncc to build, the Solaris linker will mark
3834 # an executable with each instruction set encountered by
3835 # the Solaris assembler. As our libraries contain their own
3836 # guards for processor-specific code, instead suppress
3837 # generation of the HWCAPS ELF section on Solaris x86 only.
3838 enabled_all suncc x86 &&
3839 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3840 add_ldflags -Wl,-M,mapfile
3841 nm_default='nm -P -g'
3843 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3847 oss_indev_extralibs="-lossaudio"
3852 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3854 oss_indev_extralibs="-lossaudio"
3862 add_extralibs -lpoll -lgnugetopt
3865 enabled ppc && add_asflags -force_cpusubtype_ALL
3866 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3867 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3868 add_ldflags -Wl,-dynamic,-search_paths_first
3869 check_cflags -Werror=partial-availability
3871 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3872 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3873 enabled x86_64 && objformat="macho64" || objformat="macho32"
3874 enabled_any pic shared ||
3875 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3876 check_header dispatch/dispatch.h &&
3877 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3878 if test -n "$sysroot"; then
3879 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3880 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3884 die "Native MSYS builds are discouraged, please use the MINGW environment."
3888 if enabled shared; then
3889 # Cannot build both shared and static libs when using dllexport.
3892 check_ldflags -Wl,--nxcompat
3893 check_ldflags -Wl,--dynamicbase
3894 shlibdir_default="$bindir_default"
3897 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3898 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3899 SLIB_EXTRA_CMD='cp $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3900 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3902 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3903 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3904 SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3905 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
3906 enabled x86_64 && objformat="win64" || objformat="win32"
3912 if enabled shared; then
3913 # Link to the import library instead of the normal static library
3916 # Cannot build both shared and static libs with MSVC or icl.
3919 shlibdir_default="$bindir_default"
3922 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3923 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3924 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3925 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3927 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3928 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3929 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3930 enabled x86_64 && objformat="win64" || objformat="win32"
3936 shlibdir_default="$bindir_default"
3939 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3940 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3941 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3943 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3944 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3945 enabled x86_64 && objformat="win64" || objformat="win32"
3948 *-dos|freedos|opendos)
3949 network_extralibs="-lsocket"
3952 add_cppflags -U__STRICT_ANSI__
3955 enable section_data_rel_ro
3959 ranlib="echo ignoring ranlib"
3964 add_cppflags -D_GNU_SOURCE
3965 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
3966 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3970 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3971 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3972 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3973 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3974 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3975 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3976 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3977 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3978 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3979 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3983 add_cppflags -D_BSD_SOURCE
3988 add_cppflags -D_QNX_SOURCE
3989 network_extralibs="-lsocket"
3994 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3995 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3996 add_ldflags -Wl,--target1-abs,--no-undefined \
3997 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3998 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3999 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4000 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4001 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4008 die "Unknown OS '$target_os'."
4012 # determine libc flavour
4017 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4018 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4019 eval ${pfx}libc_type=uclibc
4020 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4021 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4022 eval ${pfx}libc_type=glibc
4023 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4024 # MinGW headers can be installed on Cygwin, so check for newlib first.
4025 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4026 eval ${pfx}libc_type=newlib
4027 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4028 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4029 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4030 eval ${pfx}libc_type=mingw64
4031 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4032 eval test \$${pfx_no_}cc_type = "gcc" &&
4033 add_${pfx}cppflags -D__printf__=__gnu_printf__
4034 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4035 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4036 eval ${pfx}libc_type=mingw32
4037 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4038 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4039 die "ERROR: MinGW32 runtime version must be >= 3.15."
4040 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4041 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4042 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4043 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4044 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4045 eval test \$${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
4093 eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
4099 # hacks for compiler/libc/os combinations
4103 add_compat strtod.o strtod=avpriv_strtod
4107 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4108 add_cppflags '-I\$(SRC_PATH)/compat/float'
4110 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4112 set_default $PATHS_LIST
4115 disabled optimizations || check_cflags -fomit-frame-pointer
4118 disabled pic && return
4121 case "$target_os" in
4122 mingw*|cygwin*|win*)
4131 enabled pic && enable_weak_pic
4133 check_cc <<EOF || die "Symbol mangling check failed."
4136 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4137 extern_prefix=${sym%%ff_extern*}
4139 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4142 for restrict_keyword in restrict __restrict__ __restrict; do
4143 check_cc <<EOF && _restrict=$restrict_keyword && break
4144 void foo(char * $restrict_keyword p);
4148 check_cc <<EOF && enable pragma_deprecated
4149 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4152 check_cc <<EOF || die "endian test failed"
4153 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4155 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4158 log "check_gas using '$as' as AS"
4159 # :vararg is used on aarch64, arm and ppc altivec
4160 check_as <<EOF || return 1
4161 .macro m n, y:vararg=0
4166 # .altmacro is only used in arm asm
4167 ! enabled arm || check_as <<EOF || return 1
4174 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4176 enabled_any arm aarch64 && nogas=die
4177 enabled_all ppc altivec && nogas=warn
4181 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4182 gcc) gaspp_as_type=gas ;;
4183 *) gaspp_as_type=$as_type ;;
4186 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4188 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4189 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4191 if ! check_gas ; then
4194 $nogas "GNU assembler not found, install/update gas-preprocessor"
4197 check_as <<EOF && enable as_func
4203 check_inline_asm inline_asm_labels '"1:\n"'
4205 if enabled aarch64; then
4206 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4207 # internal assembler in clang 3.3 does not support this instruction
4208 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4209 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4211 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4213 elif enabled alpha; then
4217 elif enabled arm; then
4219 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4220 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4221 enabled thumb && check_cflags -mthumb || check_cflags -marm
4223 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4225 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4227 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4228 case "${cross_prefix:-$cc}" in
4229 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4230 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4231 __asm__ (".eabi_attribute 28, 1");
4232 int main(void) { return 0; }
4235 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4238 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4239 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4240 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4241 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4242 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4243 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4245 [ $target_os = linux ] || [ $target_os = android ] ||
4246 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4249 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4251 check_as <<EOF && enable as_arch_directive
4254 check_as <<EOF && enable as_fpu_directive
4258 # llvm's integrated assembler supports .object_arch from llvm 3.5
4259 [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4260 check_as <<EOF && enable as_object_arch
4264 # MS armasm fails to assemble our PIC constructs
4265 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4267 elif enabled mips; then
4269 # make sure that only one instruction set is enabled
4270 disable $ARCH_EXT_LIST_MIPS
4272 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4274 if enabled mips64; then
4275 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4276 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4277 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4279 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4280 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4281 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4284 elif enabled parisc; then
4286 if enabled gcc; then
4287 case $($cc -dumpversion) in
4288 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4292 elif enabled ppc; then
4294 enable local_aligned_8 local_aligned_16 local_aligned_32
4296 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4297 check_inline_asm ibm_asm '"add 0, 0, 0"'
4298 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4299 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4301 if enabled altivec; then
4302 check_cflags -maltivec -mabi=altivec
4304 # check if our compiler supports Motorola AltiVec C API
4305 check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
4306 vector signed int v2 = (vector signed int) { 1 };
4307 v1 = vec_add(v1, v2);" ||
4310 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4313 if enabled vsx; then
4314 check_cflags -mvsx &&
4315 check_code cc altivec.h "int v[4] = { 0 };
4316 vector signed int v1 = vec_vsx_ld(0, v);" ||
4320 if enabled power8; then
4321 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4324 elif enabled x86; then
4326 check_builtin rdtsc intrin.h "__rdtsc()"
4327 check_builtin mm_empty mmintrin.h "_mm_empty()"
4329 enable local_aligned_8 local_aligned_16 local_aligned_32
4331 # check whether EBP is available on x86
4332 # As 'i' is stored on the stack, this program will crash
4333 # if the base pointer is used to access it because the
4334 # base pointer is cleared in the inline assembly code.
4335 check_exec_crash <<EOF && enable ebp_available
4337 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4341 # check whether EBX is available on x86
4342 check_inline_asm ebx_available '""::"b"(0)' &&
4343 check_inline_asm ebx_available '"":::"%ebx"'
4345 # check whether xmm clobbers are supported
4346 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4348 # check whether binutils is new enough to compile SSSE3/MMXEXT
4349 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4350 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4354 if check_cmd $x86asmexe_probe -v; then
4355 x86asmexe=$x86asmexe_probe
4357 x86asm_debug="-g -F dwarf"
4359 X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4360 elif check_cmd $x86asmexe_probe --version; then
4361 x86asmexe=$x86asmexe_probe
4363 x86asm_debug="-g dwarf2"
4364 X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4367 check_x86asm "movbe ecx, [5]" && enable x86asm
4370 if ! disabled_any asm mmx x86asm; then
4372 for program in $x86asmexe nasm yasm; do
4373 probe_x86asm $program && break
4375 disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4376 X86ASMFLAGS="-f $objformat"
4377 enabled pic && append X86ASMFLAGS "-DPIC"
4378 test -n "$extern_prefix" && append X86ASMFLAGS "-DPREFIX"
4379 case "$objformat" in
4380 elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
4383 check_x86asm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4384 check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4385 check_x86asm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4386 check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4387 check_x86asm "CPU amdnop" || disable cpunop
4391 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4398 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4400 check_ldflags -Wl,--as-needed
4402 if ! disabled network; then
4403 check_func getaddrinfo $network_extralibs
4404 check_func inet_aton $network_extralibs
4406 check_type netdb.h "struct addrinfo"
4407 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4408 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4409 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4410 check_type poll.h "struct pollfd"
4411 check_type netinet/sctp.h "struct sctp_event_subscribe"
4412 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4413 check_type netinet/in.h "struct sockaddr_in6"
4414 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4415 check_type "sys/types.h sys/socket.h" socklen_t
4417 # Prefer arpa/inet.h over winsock2
4418 if check_header arpa/inet.h ; then
4419 check_func closesocket
4420 elif check_header winsock2.h ; then
4421 check_func_headers winsock2.h closesocket -lws2 &&
4422 network_extralibs="-lws2" ||
4423 { check_func_headers winsock2.h closesocket -lws2_32 &&
4424 network_extralibs="-lws2_32"; } || disable winsock2_h network
4425 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4427 check_type ws2tcpip.h socklen_t
4428 check_type ws2tcpip.h "struct addrinfo"
4429 check_type ws2tcpip.h "struct group_source_req"
4430 check_type ws2tcpip.h "struct ip_mreq_source"
4431 check_type ws2tcpip.h "struct ipv6_mreq"
4432 check_type winsock2.h "struct pollfd"
4433 check_struct winsock2.h "struct sockaddr" sa_len
4434 check_type ws2tcpip.h "struct sockaddr_in6"
4435 check_type ws2tcpip.h "struct sockaddr_storage"
4441 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4442 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4443 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4444 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4446 case "$custom_allocator" in
4448 # jemalloc by default does not use a prefix
4449 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4452 require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
4457 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4458 check_func ${malloc_prefix}memalign && enable memalign
4459 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4461 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4462 { check_lib clock_gettime time.h clock_gettime ||
4463 check_lib clock_gettime time.h clock_gettime -lrt; }
4466 check_func gethrtime
4468 check_func getrusage
4469 check_func gettimeofday
4472 check_func localtime_r
4476 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4477 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
4478 check_func sched_getaffinity
4479 check_func setrlimit
4480 check_func strerror_r
4485 check_func_headers io.h setmode
4486 check_func_headers mach/mach_time.h mach_absolute_time
4487 check_func_headers stdlib.h getenv
4489 check_func_headers windows.h GetProcessAffinityMask
4490 check_func_headers windows.h GetProcessTimes
4491 check_func_headers windows.h GetSystemTimeAsFileTime
4492 check_func_headers windows.h LoadLibrary
4493 check_func_headers windows.h MapViewOfFile
4494 check_func_headers windows.h SetConsoleTextAttribute
4495 check_func_headers windows.h Sleep
4496 check_func_headers windows.h VirtualAlloc
4497 check_struct windows.h "CONDITION_VARIABLE" Ptr
4499 check_header direct.h
4500 check_header dxgidebug.h
4502 check_header dxva2api.h
4504 check_header malloc.h
4506 check_header sys/param.h
4507 check_header sys/resource.h
4508 check_header sys/select.h
4509 check_header sys/time.h
4510 check_header sys/un.h
4511 check_header unistd.h
4512 check_header valgrind/valgrind.h
4513 check_header VideoDecodeAcceleration/VDADecoder.h
4514 check_header windows.h
4516 # it seems there are versions of clang in some distros that try to use the
4517 # gcc headers, which explodes for stdatomic
4518 # so we also check that atomics actually work here
4519 check_builtin stdatomic stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4521 check_lib ole32 "windows.h" CoTaskMemFree -lole32
4522 check_lib shell32 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4523 check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4524 check_lib psapi "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4526 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4528 check_type "cuviddec.h" "CUVIDH264PICPARAMS"
4529 check_type "cuviddec.h" "CUVIDHEVCPICPARAMS"
4530 check_struct "cuviddec.h" "CUVIDDECODECREATEINFO" bitDepthMinus8
4532 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4533 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4534 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4536 check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
4537 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4538 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4539 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4540 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4541 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4542 check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
4543 check_type "va/va.h va/va_enc_vp8.h" "VAEncPictureParameterBufferVP8"
4544 check_type "va/va.h va/va_enc_vp9.h" "VAEncPictureParameterBufferVP9"
4546 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4548 if ! disabled w32threads && ! enabled pthreads; then
4549 check_lib w32threads "windows.h process.h" _beginthreadex
4552 # check for some common methods of building with pthread support
4553 # do this before the optional library checks as some of them require pthreads
4554 if ! disabled pthreads && ! enabled w32threads; then
4555 if check_lib pthreads pthread.h pthread_join -pthread; then
4557 elif check_lib pthreads pthread.h pthread_join -pthreads; then
4558 add_cflags -pthreads
4559 elif check_lib pthreads pthread.h pthread_join -lpthreadGC2; then
4561 elif check_lib pthreads pthread.h pthread_join -lpthread; then
4563 elif check_func pthread_join; then
4569 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
4571 disabled zlib || check_lib zlib zlib.h zlibVersion -lz
4572 disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion -lbz2
4574 # On some systems dynamic loading requires no extra linker flags
4575 check_lib libdl dlfcn.h dlopen || check_lib libdl dlfcn.h dlopen -ldl
4577 check_lib libm math.h sin -lm
4583 for func in $MATH_FUNCS; do
4584 eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
4587 # these are off by default, so fail if requested and not available
4588 enabled avisynth && require_header avisynth/avisynth_c.h
4589 enabled avxsynth && require_header avxsynth/avxsynth_c.h
4590 enabled cuda && require cuda cuda.h cuInit -lcuda
4591 enabled cuvid && require cuvid cuviddec.h cuvidCreateDecoder -lnvcuvid
4592 enabled frei0r && require_header frei0r.h
4593 enabled gnutls && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init &&
4594 check_lib gmp gmp.h mpz_export -lgmp
4595 enabled libbs2b && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
4596 enabled libdc1394 && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
4597 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4598 enabled libfaac && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4599 enabled libfdk_aac && require_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4600 enabled libfontconfig && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
4601 enabled libfreetype && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4602 enabled libgsm && require libgsm gsm.h gsm_create -lgsm
4603 enabled libhdcd && require_pkg_config libhdcd libhdcd "hdcd/hdcd_simple.h" hdcd_new
4604 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4605 enabled libkvazaar && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4606 enabled libmfx && require_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit
4607 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4608 enabled libnpp && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4609 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4610 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4611 enabled libopencv && require_pkg_config libopencv opencv opencv/cv.h cvCreateImageHeader
4612 enabled libopenh264 && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
4613 enabled libopenjpeg && { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4614 require_pkg_config libopenjpeg libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4615 enabled libopus && require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
4616 enabled libpulse && require_pkg_config libpulse libpulse-simple pulse/simple.h pa_simple_new
4617 enabled librtmp && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
4618 enabled libschroedinger && require_pkg_config libschroedinger schroedinger-1.0 schroedinger/schro.h schro_init
4619 enabled libsnappy && require libsnappy snappy-c.h snappy_compress -lsnappy
4620 enabled libspeex && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
4621 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4622 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4623 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4624 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4625 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4626 enabled libvpx && require_pkg_config libvpx "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version &&
4627 { enabled libvpx_vp8_decoder &&
4628 check_pkg_config libvpx_vp8_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx
4629 enabled libvpx_vp8_encoder &&
4630 check_pkg_config libvpx_vp8_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx
4631 enabled libvpx_vp9_decoder &&
4632 check_pkg_config libvpx_vp9_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx
4633 enabled libvpx_vp9_encoder &&
4634 check_pkg_config libvpx_vp9_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx
4635 disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder &&
4636 die "libvpx enabled but no supported decoders/encoders found"
4638 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4639 enabled libwebp && require_pkg_config libwebp libwebp webp/encode.h WebPGetEncoderVersion
4640 enabled libx264 && require_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode &&
4641 require_cpp_condition x264.h "X264_BUILD >= 118" &&
4642 { check_cpp_condition x264.h "X264_MPEG2" &&
4644 enabled libx265 && require_pkg_config libx265 x265 x265.h x265_api_get &&
4645 require_cpp_condition x265.h "X265_BUILD >= 57"
4646 enabled libxavs && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
4647 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4648 enabled mmal && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4649 { ! enabled cross_compile &&
4650 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
4651 add_ldflags -L/opt/vc/lib/ &&
4652 check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
4653 die "ERROR: mmal not found" &&
4654 check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
4655 enabled nvenc && require_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6"
4656 enabled omx && require_header OMX_Core.h
4657 enabled omx_rpi && { check_header OMX_Core.h ||
4658 { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||
4659 die "ERROR: OpenMAX IL headers not found"; } && enable omx
4660 enabled openssl && { { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
4661 check_pkg_config openssl openssl openssl/ssl.h SSL_library_init; } ||
4662 check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4663 check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4664 check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4665 die "ERROR: openssl not found"; }
4667 # SDL adds some CFLAGS that should not be part of the general CFLAGS.
4669 test_pkg_config sdl "sdl >= 1.2.1 sdl < 1.3.0" SDL_events.h SDL_PollEvent
4671 ! disabled pod2man && check_cmd pod2man --help && enable pod2man || disable pod2man
4672 ! disabled texi2html && check_cmd texi2html -version && enable texi2html || disable texi2html
4674 check_header linux/fb.h
4675 check_header linux/videodev2.h
4676 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4678 check_header AVFoundation/AVFoundation.h
4680 check_header sys/videoio.h
4682 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
4683 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
4684 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4685 # w32api 3.12 had it defined wrong
4686 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4688 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4689 check_header "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h" ||
4690 check_header "machine/ioctl_meteor.h machine/ioctl_bt848.h" ||
4691 check_header "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
4692 check_header "dev/ic/bt8xx.h"
4694 check_header sys/soundcard.h
4696 enabled alsa_indev &&
4697 check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
4700 require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
4702 enabled sndio_indev && check_lib sndio sndio.h sio_open -lsndio
4704 if enabled libcdio; then
4705 check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4706 check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4707 die "ERROR: No usable libcdio/cdparanoia found"
4710 if enabled libxcb; then
4711 require_pkg_config libxcb xcb xcb/xcb.h xcb_connect
4712 require_pkg_config libxcb_shape xcb-shape xcb/shape.h xcb_shape_rectangles
4713 disabled libxcb_shm ||
4714 check_pkg_config libxcb_shm xcb-shm xcb/shm.h xcb_shm_attach
4715 disabled libxcb_xfixes ||
4716 check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
4719 # d3d11va requires linking directly to dxgi and d3d11 if not building for
4720 # the desktop api partition
4721 check_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
4722 #ifdef WINAPI_FAMILY
4723 #include <winapifamily.h>
4724 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4725 #error desktop, not uwp
4727 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
4730 #error no family set
4734 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4737 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4741 check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm
4744 check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11
4747 check_cpp_condition "va/va.h" "VA_CHECK_VERSION(1, 0, 0)" &&
4751 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4755 check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
4757 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4759 # add some useful compiler flags if supported
4760 check_cflags -Wdeclaration-after-statement
4762 check_cflags -Wdisabled-optimization
4763 check_cflags -Wpointer-arith
4764 check_cflags -Wredundant-decls
4765 check_cflags -Wwrite-strings
4766 check_cflags -Wtype-limits
4767 check_cflags -Wundef
4768 check_cflags -Wmissing-prototypes
4769 check_cflags -Wstrict-prototypes
4771 if enabled extra_warnings; then
4772 check_cflags -Wcast-qual
4773 check_cflags -Wextra
4774 check_cflags -Wpedantic
4777 check_disable_warning(){
4778 warning_flag=-W${1#-Wno-}
4779 test_cflags $warning_flag && add_cflags $1
4782 check_disable_warning -Wno-parentheses
4783 check_disable_warning -Wno-switch
4784 check_disable_warning -Wno-format-zero-length
4785 check_disable_warning -Wno-pointer-sign
4787 check_disable_warning_headers(){
4788 warning_flag=-W${1#-Wno-}
4789 test_cflags $warning_flag && add_cflags_headers $1
4792 check_disable_warning_headers -Wno-deprecated-declarations
4793 check_disable_warning_headers -Wno-unused-variable
4795 check_objcflags -fobjc-arc && enable objc_arc
4797 check_cc <<EOF && enable blocks_extension
4798 void (^block)(void);
4801 # add some linker flags
4802 check_ldflags -Wl,--warn-common
4803 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4804 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
4805 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4807 # add some strip flags
4808 # -wN '..@*' is more selective than -x, but not available everywhere.
4809 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4811 enabled neon_clobber_test &&
4812 check_ldflags -Wl,--wrap,avcodec_open2 \
4813 -Wl,--wrap,avcodec_decode_audio4 \
4814 -Wl,--wrap,avcodec_decode_video2 \
4815 -Wl,--wrap,avcodec_decode_subtitle2 \
4816 -Wl,--wrap,avcodec_encode_audio2 \
4817 -Wl,--wrap,avcodec_encode_video2 \
4818 -Wl,--wrap,avcodec_encode_subtitle \
4819 -Wl,--wrap,avcodec_send_packet \
4820 -Wl,--wrap,avcodec_receive_packet \
4821 -Wl,--wrap,avcodec_send_frame \
4822 -Wl,--wrap,avcodec_receive_frame \
4823 -Wl,--wrap,avresample_convert ||
4824 disable neon_clobber_test
4826 enabled xmm_clobber_test &&
4827 check_ldflags -Wl,--wrap,avcodec_open2 \
4828 -Wl,--wrap,avcodec_decode_audio4 \
4829 -Wl,--wrap,avcodec_decode_video2 \
4830 -Wl,--wrap,avcodec_decode_subtitle2 \
4831 -Wl,--wrap,avcodec_encode_audio2 \
4832 -Wl,--wrap,avcodec_encode_video2 \
4833 -Wl,--wrap,avcodec_encode_subtitle \
4834 -Wl,--wrap,avcodec_send_packet \
4835 -Wl,--wrap,avcodec_receive_packet \
4836 -Wl,--wrap,avcodec_send_frame \
4837 -Wl,--wrap,avcodec_receive_frame \
4838 -Wl,--wrap,avresample_convert \
4839 -Wl,--wrap,sws_scale ||
4840 disable xmm_clobber_test
4842 check_ld <<EOF && enable proper_dce
4843 extern const int array[512];
4844 static inline int func(void) { return array[0]; }
4845 int main(void) { return 0; }
4848 if enabled proper_dce; then
4849 echo "X { local: *; };" > $TMPV
4850 if test_ldflags -Wl,${version_script},$TMPV; then
4851 append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
4852 check_cc <<EOF && enable symver_asm_label
4853 void ff_foo(void) __asm__ ("av_foo@VERSION");
4854 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4856 check_cc <<EOF && enable symver_gnu_asm
4857 __asm__(".symver ff_foo,av_foo@VERSION");
4858 void ff_foo(void) {}
4863 if [ -z "$optflags" ]; then
4864 if enabled small; then
4865 optflags=$cflags_size
4866 elif enabled optimizations; then
4867 optflags=$cflags_speed
4869 optflags=$cflags_noopt
4875 enabled lto && check_ldflags "$@"
4878 check_optflags $optflags
4879 check_optflags -fno-math-errno
4880 check_optflags -fno-signed-zeros
4882 if enabled lto; then
4883 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4885 check_ldflags -flto $cpuflags
4888 if enabled icc; then
4889 # Just warnings, no remarks
4891 # -wd: Disable following warnings
4892 # 144, 167, 556: -Wno-pointer-sign
4893 # 1292: attribute "foo" ignored
4894 # 1419: external declaration in primary source file
4895 # 10006: ignoring unknown option -fno-signed-zeros
4896 # 10148: ignoring unknown option -Wno-parentheses
4897 # 10156: ignoring option '-W'; no argument required
4898 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4899 # 11030: Warning unknown option --as-needed
4900 # 10156: ignoring option '-export'; no argument required
4901 check_ldflags -wd10156,11030
4902 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4903 enable ebp_available
4904 if enabled x86_32; then
4905 icc_version=$($cc -dumpversion)
4906 test ${icc_version%%.*} -ge 11 &&
4907 check_cflags -falign-stack=maintain-16-byte ||
4908 disable aligned_stack
4910 elif enabled gcc; then
4911 check_optflags -fno-tree-vectorize
4912 check_cflags -Werror=implicit-function-declaration
4913 check_cflags -Werror=missing-prototypes
4914 check_cflags -Werror=return-type
4915 check_cflags -Werror=declaration-after-statement
4916 check_cflags -Werror=vla
4917 check_cflags -Werror=format-security
4918 check_cflags -fdiagnostics-color=auto
4919 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4920 elif enabled llvm_gcc; then
4921 check_cflags -mllvm -stack-alignment=16
4922 elif enabled clang; then
4923 check_cflags -mllvm -stack-alignment=16
4924 check_cflags -Qunused-arguments
4925 check_cflags -Werror=implicit-function-declaration
4926 check_cflags -Werror=missing-prototypes
4927 check_cflags -Werror=return-type
4928 elif enabled cparser; then
4929 add_cflags -Wno-missing-variable-declarations
4930 add_cflags -Wno-empty-statement
4931 elif enabled armcc; then
4932 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4933 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4934 # 2523: use of inline assembly is deprecated
4935 add_cflags -W${armcc_opt},--diag_suppress=2523
4936 add_cflags -W${armcc_opt},--diag_suppress=1207
4937 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4938 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4939 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4940 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4941 elif enabled pathscale; then
4942 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4944 elif enabled_any msvc icl; then
4945 enabled x86_32 && disable aligned_stack
4946 enabled_all x86_32 debug && add_cflags -Oy-
4947 enabled debug && add_ldflags -debug
4948 enable pragma_deprecated
4949 if enabled icl; then
4950 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4951 # (correctly) on icl 13.x.
4952 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4953 add_cflags -Qansi-alias
4954 # icl will pass the inline asm tests but inline asm is currently
4955 # not supported (build will fail)
4958 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4959 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4960 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
4961 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
4962 # (as it ends up if the restrict redefine is done before including stdlib.h), while
4963 # MSVC 2013 and newer can handle it fine.
4964 # If this declspec fails, force including stdlib.h before the restrict redefinition
4965 # happens in config.h.
4966 if [ $_restrict != restrict ]; then
4967 check_cc <<EOF || add_cflags -FIstdlib.h
4968 __declspec($_restrict) void* foo(int);
4973 for pfx in "" host_; do
4974 varname=${pfx%_}cc_type
4975 eval "type=\$$varname"
4976 if [ "$type" = "msvc" ]; then
4977 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
4978 static inline int foo(int a) { return a; }
4985 add_asflags -Qunused-arguments
4991 check_ldflags -Qunused-arguments
4995 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4997 check_deps $CONFIG_LIST \
5002 flatten_extralibs(){
5003 unset nested_entries
5006 for entry in $list; do
5009 append nested_entries $(filter '*_extralibs' $entry_copy)
5010 flat_entries=$(filter_out '*_extralibs' $entry_copy)
5011 eval $entry="\$flat_entries"
5013 append $list_name "$nested_entries"
5015 resolve nested_entries
5016 if test -n "$(filter '*_extralibs' $nested_entries)"; then
5017 flatten_extralibs $list_name
5021 for linkunit in $LIBRARY_LIST; do
5022 unset current_extralibs
5023 eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
5024 for comp in ${components}; do
5025 enabled $comp || continue
5026 comp_extralibs="${comp}_extralibs"
5027 append current_extralibs $comp_extralibs
5029 eval prepend ${linkunit}_extralibs $current_extralibs
5032 for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
5033 flatten_extralibs ${linkunit}_extralibs
5034 unique ${linkunit}_extralibs
5035 resolve ${linkunit}_extralibs
5036 eval ${linkunit}_extralibs=\$\(\$ldflags_filter \$${linkunit}_extralibs\)
5039 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5041 for thread in $THREADS_LIST; do
5042 if enabled $thread; then
5043 test -n "$thread_type" &&
5044 die "ERROR: Only one thread type must be selected." ||
5045 thread_type="$thread"
5049 if disabled stdatomic; then
5050 if enabled atomics_gcc; then
5051 add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
5052 elif enabled atomics_win32; then
5053 add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
5054 elif enabled atomics_suncc; then
5055 add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
5056 elif enabled pthreads; then
5057 add_compat atomics/pthread/stdatomic.o
5058 add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
5060 enabled threads && die "Threading is enabled, but no atomics are available"
5061 add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
5065 enabled zlib && add_cppflags -DZLIB_CONST
5067 # conditional library dependencies, in linking order
5068 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
5069 enabled_any asyncts_filter resample_filter &&
5070 prepend avfilter_deps "avresample"
5071 enabled scale_filter && prepend avfilter_deps "swscale"
5073 enabled opus_decoder && prepend avcodec_deps "avresample"
5077 eval "deps=\$$lib_deps"
5078 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5082 map 'expand_deps $v' $LIBRARY_LIST
5084 if test "$quiet" != "yes"; then
5086 echo "install prefix $prefix"
5087 echo "source path $source_path"
5088 echo "C compiler $cc"
5089 echo "C library $libc_type"
5090 if test "$host_cc" != "$cc"; then
5091 echo "host C compiler $host_cc"
5092 echo "host C library $host_libc_type"
5094 echo "ARCH $arch ($cpu)"
5095 if test "$extra_version" != ""; then
5096 echo "version string suffix $extra_version"
5098 echo "big-endian ${bigendian-no}"
5099 echo "runtime cpu detection ${runtime_cpudetect-no}"
5100 if enabled x86; then
5101 echo "standalone assembly ${x86asm-no}"
5102 echo "x86 assembler ${x86asmexe}"
5103 echo "MMX enabled ${mmx-no}"
5104 echo "MMXEXT enabled ${mmxext-no}"
5105 echo "3DNow! enabled ${amd3dnow-no}"
5106 echo "3DNow! extended enabled ${amd3dnowext-no}"
5107 echo "SSE enabled ${sse-no}"
5108 echo "SSSE3 enabled ${ssse3-no}"
5109 echo "AVX enabled ${avx-no}"
5110 echo "XOP enabled ${xop-no}"
5111 echo "FMA3 enabled ${fma3-no}"
5112 echo "FMA4 enabled ${fma4-no}"
5113 echo "i686 features enabled ${i686-no}"
5114 echo "CMOV is fast ${fast_cmov-no}"
5115 echo "EBX available ${ebx_available-no}"
5116 echo "EBP available ${ebp_available-no}"
5118 if enabled aarch64; then
5119 echo "NEON enabled ${neon-no}"
5120 echo "VFP enabled ${vfp-no}"
5122 if enabled arm; then
5123 echo "ARMv5TE enabled ${armv5te-no}"
5124 echo "ARMv6 enabled ${armv6-no}"
5125 echo "ARMv6T2 enabled ${armv6t2-no}"
5126 echo "VFP enabled ${vfp-no}"
5127 echo "NEON enabled ${neon-no}"
5129 if enabled ppc; then
5130 echo "AltiVec enabled ${altivec-no}"
5131 echo "VSX enabled ${vsx-no}"
5132 echo "POWER8 enabled ${power8-no}"
5133 echo "PPC 4xx optimizations ${ppc4xx-no}"
5134 echo "dcbzl available ${dcbzl-no}"
5136 echo "debug symbols ${debug-no}"
5137 echo "optimize for size ${small-no}"
5138 echo "optimizations ${optimizations-no}"
5139 echo "static ${static-no}"
5140 echo "shared ${shared-no}"
5141 echo "network support ${network-no}"
5142 echo "threading support ${thread_type-no}"
5143 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5145 echo "External libraries:"
5146 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5148 echo "External libraries providing hardware acceleration:"
5149 print_enabled '' $HWACCEL_LIBRARY_LIST | print_3_columns
5153 print_enabled '' $LIBRARY_LIST | print_3_columns
5157 print_enabled '' $PROGRAM_LIST | print_3_columns
5160 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev; do
5161 echo "Enabled ${type}s:"
5162 eval list=\$$(toupper $type)_LIST
5163 print_enabled '_*' $list | print_3_columns
5167 if test -n "$ignore_tests"; then
5168 ignore_tests=$(echo $ignore_tests | tr ',' ' ')
5169 echo "Ignored FATE tests:"
5170 echo $ignore_tests | print_3_columns
5174 license="LGPL version 2.1 or later"
5175 if enabled nonfree; then
5176 license="nonfree and unredistributable"
5177 elif enabled gplv3; then
5178 license="GPL version 3 or later"
5179 elif enabled lgplv3; then
5180 license="LGPL version 3 or later"
5181 elif enabled gpl; then
5182 license="GPL version 2 or later"
5185 echo "License: $license"
5187 fi # test "$quiet" != "yes"
5189 test -n "$WARNINGS" && printf "\n$WARNINGS"
5191 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5194 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
5197 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
5199 config_files="$TMPH avbuild/config.mak"
5201 cat > avbuild/config.mak <<EOF
5202 # Automatically generated by configure - do not modify!
5203 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5205 LIBDIR=\$(DESTDIR)$libdir
5206 SHLIBDIR=\$(DESTDIR)$shlibdir
5207 INCDIR=\$(DESTDIR)$incdir
5208 BINDIR=\$(DESTDIR)$bindir
5209 DATADIR=\$(DESTDIR)$datadir
5210 DOCDIR=\$(DESTDIR)$docdir
5211 MANDIR=\$(DESTDIR)$mandir
5212 SRC_PATH=$source_path
5215 INTRINSICS=$intrinsics
5221 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5223 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5225 DEPX86ASM=$x86asmexe
5226 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
5237 OBJCFLAGS=$OBJCFLAGS
5252 LDEXEFLAGS=$LDEXEFLAGS
5253 LDSOFLAGS=$LDSOFLAGS
5254 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5255 STRIPFLAGS=$STRIPFLAGS
5256 X86ASMFLAGS=$X86ASMFLAGS
5263 EXTRA_VERSION=$extra_version
5265 CCDEP_FLAGS=$CCDEP_FLAGS
5267 ASDEP_FLAGS=$ASDEP_FLAGS
5268 X86ASMDEP=$X86ASMDEP
5269 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
5270 CC_DEPFLAGS=$CC_DEPFLAGS
5271 AS_DEPFLAGS=$AS_DEPFLAGS
5272 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
5275 HOSTCFLAGS=$host_cflags
5276 HOSTCPPFLAGS=$host_cppflags
5277 HOSTEXESUF=$HOSTEXESUF
5278 HOSTLDFLAGS=$host_ldflags
5279 HOSTEXTRALIBS=$host_extralibs
5281 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5282 HOSTCCDEP=$HOSTCCDEP
5283 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5284 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5288 TARGET_EXEC=$target_exec $target_exec_args
5289 TARGET_PATH=$target_path
5290 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5291 CFLAGS-avplay=$sdl_cflags
5292 CFLAGS_HEADERS=$CFLAGS_HEADERS
5293 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5294 EXTRALIBS=$extralibs
5295 COMPAT_OBJS=$compat_objs
5297 SLIBNAME=${SLIBNAME}
5298 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5299 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5300 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5301 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5302 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5303 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5304 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5305 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5306 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
5307 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5308 IGNORE_TESTS=$ignore_tests
5311 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> avbuild/config.mak' $LIBRARY_LIST
5313 for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
5314 eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> avbuild/config.mak
5318 /* Automatically generated by configure - do not modify! */
5319 #ifndef LIBAV_CONFIG_H
5320 #define LIBAV_CONFIG_H
5321 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5322 #define LIBAV_LICENSE "$(c_escape $license)"
5323 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5324 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5325 #define restrict $_restrict
5326 #define EXTERN_PREFIX "${extern_prefix}"
5327 #define EXTERN_ASM ${extern_prefix}
5328 #define SLIBSUF "$SLIBSUF"
5331 test -n "$malloc_prefix" &&
5332 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5334 if enabled x86asm; then
5335 append config_files $TMPASM
5337 ; Automatically generated by configure - do not modify!
5341 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5343 print_config ARCH_ "$config_files" $ARCH_LIST
5344 print_config HAVE_ "$config_files" $HAVE_LIST
5345 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5349 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5351 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5352 cp_if_changed $TMPH config.h
5353 touch avbuild/.config
5355 enabled x86asm && cp_if_changed $TMPASM config.asm
5358 /* Generated by libav configure */
5359 #ifndef AVUTIL_AVCONFIG_H
5360 #define AVUTIL_AVCONFIG_H
5363 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5365 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5367 cp_if_changed $TMPH libavutil/avconfig.h
5369 # generate the lists of enabled components
5370 print_enabled_components(){
5375 echo "static const $struct_name * const $name[] = {" > $TMPH
5377 enabled $c && printf " &ff_%s,\n" $c >> $TMPH
5379 echo " NULL };" >> $TMPH
5380 cp_if_changed $TMPH $file
5383 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
5384 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
5386 # Settings for pkg-config files
5389 # Automatically generated by configure - do not modify!
5394 source_path=${source_path}
5397 extralibs_avutil="$avutil_extralibs"
5398 extralibs_avcodec="$avcodec_extralibs"
5399 extralibs_avformat="$avformat_extralibs"
5400 extralibs_avdevice="$avdevice_extralibs"
5401 extralibs_avfilter="$avfilter_extralibs"
5402 extralibs_avresample="$avresample_extralibs"
5403 extralibs_swscale="$swscale_extralibs"
5406 for lib in $LIBRARY_LIST; do
5407 lib_deps="$(eval echo \$${lib}_deps)"
5408 echo ${lib}_deps=\"$lib_deps\" >> avbuild/config.sh
5411 cp_if_changed $TMPH avbuild/config.sh