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:$PATH
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
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
112 --disable-avserver deprecated, does nothing
115 --disable-doc do not build documentation
116 --disable-pod2man do not build manual pages
117 --disable-texi2html do not build HTML documentation
118 --disable-avdevice disable libavdevice build
119 --disable-avcodec disable libavcodec build
120 --disable-avformat disable libavformat build
121 --disable-avutil disable libavutil build
122 --disable-swscale disable libswscale build
123 --disable-avfilter disable video filter support [no]
124 --disable-avresample disable libavresample build [no]
125 --disable-pthreads disable pthreads [auto]
126 --disable-w32threads disable Win32 threads [auto]
127 --disable-network disable network support [no]
128 --disable-dct disable DCT code
129 --disable-error-resilience disable error resilience code
130 --disable-lsp disable LSP code
131 --disable-lzo disable LZO decoder code
132 --disable-mdct disable MDCT code
133 --disable-rdft disable RDFT code
134 --disable-fft disable FFT code
135 --disable-faan disable floating point AAN (I)DCT code
137 Individual component options:
138 --disable-everything disable all components listed below
139 --disable-encoder=NAME disable encoder NAME
140 --enable-encoder=NAME enable encoder NAME
141 --disable-encoders disable all encoders
142 --disable-decoder=NAME disable decoder NAME
143 --enable-decoder=NAME enable decoder NAME
144 --disable-decoders disable all decoders
145 --disable-hwaccel=NAME disable hwaccel NAME
146 --enable-hwaccel=NAME enable hwaccel NAME
147 --disable-hwaccels disable all hwaccels
148 --disable-muxer=NAME disable muxer NAME
149 --enable-muxer=NAME enable muxer NAME
150 --disable-muxers disable all muxers
151 --disable-demuxer=NAME disable demuxer NAME
152 --enable-demuxer=NAME enable demuxer NAME
153 --disable-demuxers disable all demuxers
154 --enable-parser=NAME enable parser NAME
155 --disable-parser=NAME disable parser NAME
156 --disable-parsers disable all parsers
157 --enable-bsf=NAME enable bitstream filter NAME
158 --disable-bsf=NAME disable bitstream filter NAME
159 --disable-bsfs disable all bitstream filters
160 --enable-protocol=NAME enable protocol NAME
161 --disable-protocol=NAME disable protocol NAME
162 --disable-protocols disable all protocols
163 --enable-indev=NAME enable input device NAME
164 --disable-indev=NAME disable input device NAME
165 --disable-indevs disable input devices
166 --enable-outdev=NAME enable output device NAME
167 --disable-outdev=NAME disable output device NAME
168 --disable-outdevs disable output devices
169 --disable-devices disable all devices
170 --enable-filter=NAME enable filter NAME
171 --disable-filter=NAME disable filter NAME
172 --disable-filters disable all filters
174 External library support:
176 Using any of the following switches will allow Libav to link to the
177 corresponding external library. All the components depending on that library
178 will become enabled, if all their other dependencies are met and they are not
179 explicitly disabled. E.g. --enable-libwavpack will enable linking to
180 libwavpack and allow the libwavpack encoder to be built, unless it is
181 specifically disabled with --disable-encoder=libwavpack.
183 Note that only the system libraries are auto-detected. All the other external
184 libraries must be explicitly enabled.
186 Also note that the following help text describes the purpose of the libraries
187 themselves, not all their features will necessarily be usable by Libav.
189 --enable-avisynth video frameserver
190 --enable-bzlib bzip2 compression [autodetect]
191 --enable-frei0r video filtering plugins
192 --enable-gnutls crypto
193 --enable-libbs2b Bauer stereophonic-to-binaural DSP
194 --enable-libcdio audio CD input
195 --enable-libdc1394 IEEE 1394/Firewire camera input
196 --enable-libdcadec DCA audio decoding
197 --enable-libfaac AAC audio encoding
198 --enable-libfdk-aac AAC audio encoding/decoding
199 --enable-libfontconfig font configuration and management
200 --enable-libfreetype font rendering
201 --enable-libgsm GSM audio encoding/decoding
202 --enable-libhdcd HDCD decoding filter
203 --enable-libilbc ILBC audio encoding/decoding
204 --enable-libkvazaar HEVC video encoding
205 --enable-libmp3lame MP3 audio encoding
206 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
207 --enable-libopencore-amrwb AMR-WB audio decoding
208 --enable-libopencv computer vision
209 --enable-libopenh264 H.264 video encoding/decoding
210 --enable-libopenjpeg JPEG 2000 image encoding/decoding
211 --enable-libopus Opus audio encoding/decoding
212 --enable-libpulse Pulseaudio sound server
213 --enable-librtmp RTMP streaming
214 --enable-libschroedinger Dirac video encoding/decoding
215 --enable-libsnappy snappy compression
216 --enable-libspeex Speex audio encoding/decoding
217 --enable-libtheora Theora video encoding/decoding
218 --enable-libtwolame MP2 audio encoding
219 --enable-libvo-aacenc AAC audio encoding
220 --enable-libvo-amrwbenc AMR-WB audio encoding
221 --enable-libvorbis Vorbis audio encoding/decoding
222 --enable-libvpx VP* video encoding/decoding
223 --enable-libwavpack Wavpack audio encoding/decoding
224 --enable-libwebp WebP image encoding/decoding
225 --enable-libx264 H.264 video encoding
226 --enable-libx265 HEVC video encoding
227 --enable-libxavs Chinese AVS video encoding
228 --enable-libxcb X window system protocol communication
229 --enable-libxcb-shm X11 shm communication [auto]
230 --enable-libxcb-xfixes X11 mouse rendering [auto]
231 --enable-libxvid MPEG-4 ASP video encoding
232 --enable-openssl crypto
233 --enable-zlib compression [autodetect]
235 The following libraries provide various hardware acceleration features:
236 --enable-cuda Nvidia CUDA (dynamically linked)
237 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
238 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
239 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
240 --enable-libnpp Nvidia CUDA processing
241 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
242 --enable-nvenc Nvidia video encoding
243 --enable-omx OpenMAX IL
244 --enable-omx-rpi OpenMAX IL for Raspberry Pi
245 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
246 --enable-vda Apple Video Decode Acceleration [auto]
247 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
250 --arch=ARCH select architecture [$arch]
251 --cpu=CPU select the minimum required CPU (affects
252 instruction selection, may crash on older CPUs)
253 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
254 --enable-cross-compile assume a cross-compiler is used
255 --sysroot=PATH root of cross-build tree
256 --sysinclude=PATH location of cross-build system headers
257 --target-os=OS compiler targets OS [$target_os]
258 --target-exec=CMD command to run executables on target
259 --target-path=DIR path to view of build directory on target
260 --target-samples=DIR path to samples directory on target
261 --toolchain=NAME set tool defaults according to NAME
263 --ar=AR use archive tool AR [$ar_default]
264 --as=AS use assembler AS [$as_default]
265 --cc=CC use C compiler CC [$cc_default]
266 --objcc=OCC use ObjC compiler OCC [$cc_default]
267 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
268 --ld=LD use linker LD
269 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
270 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
271 --host-cc=HOSTCC use host C compiler HOSTCC
272 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
273 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
274 --host-ld=HOSTLD use host linker HOSTLD
275 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
276 --host-libs=HLIBS use libs HLIBS when linking for host
277 --host-os=OS compiler host OS [$target_os]
278 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
279 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
280 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
281 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
282 --extra-libs=ELIBS add ELIBS [$ELIBS]
283 --extra-version=STRING version string suffix []
284 --optflags=OPTFLAGS override optimization-related compiler flags
285 --build-suffix=SUFFIX library name suffix []
286 --enable-pic build position-independent code
287 --enable-thumb compile for Thumb instruction set
288 --enable-lto use link-time optimization
289 --env="ENV=override" override the environment variables
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-yasm disable use of nasm/yasm 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 --enable-random randomly enable/disable components
342 --enable-random=LIST randomly enable/disable specific components or
343 --disable-random=LIST component groups. LIST is a comma-separated list
344 of NAME[:PROB] entries where NAME is a component
345 (group) and PROB the probability associated with
347 --random-seed=VALUE seed value for --enable/disable-random
348 --disable-valgrind-backtrace do not print a backtrace under Valgrind
349 (only applies to --disable-optimizations builds)
351 NOTE: Object files are built at the place where configure is launched.
359 echo "$@" >> $logfile
366 printf '%5s %s\n' "${i}" "${line}"
368 done < $1 >> $logfile
379 WARNINGS="${WARNINGS}WARNING: $*\n"
386 If you think configure made a mistake, make sure you are using the latest
387 version from Git. If the latest version fails, report the problem to the
388 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
390 if disabled logging; then
392 Rerun configure with logging enabled (do not use --disable-logging), and
393 include the log this produces with your report.
397 Include the log file "$logfile" produced by configure as this will help
404 # Avoid locale weirdness, besides we really just want to translate ASCII.
406 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
410 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
414 echo "$*" | sed 's/["\\]/\\\0/g'
418 v=$(echo "$1" | sed "s/'/'\\\\''/g")
419 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
424 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
431 eval "case $v in $pat) echo $v ;; esac"
439 eval "case $v in $pat) ;; *) echo $v ;; esac"
446 for v; do eval $m; done
452 for v; do echo ${v}${suffix}; done
467 eval : \${$var:=$value}
472 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
478 eval $(sanitize_var_name "$var")='$*'
482 eval echo \$$(sanitize_var_name "$1")
487 eval level=\${${pvar}_level:=0}
488 eval ${pvar}_${level}="\$$pvar"
489 eval ${pvar}_level=$(($level+1))
495 eval level=\${${pvar}_level:-0}
496 test $level = 0 && continue
497 eval level=$(($level-1))
498 eval $pvar="\${${pvar}_${level}}"
499 eval ${pvar}_level=$level
500 eval unset ${pvar}_${level}
522 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
528 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
534 enabled $var && continue
535 eval sel="\$${var}_select"
536 eval sgs="\$${var}_suggest"
540 enable_deep_weak $sgs
552 disabled $var && continue
561 test "${1#!}" = "$1" && op== || op=!=
562 eval test "x\$${1#!}" $op "xyes"
566 test "${1#!}" = "$1" && op== || op=!=
567 eval test "x\$${1#!}" $op "xno"
572 enabled $opt || return 1
578 disabled $opt || return 1
584 enabled $opt && return 0
590 disabled $opt && return 0
597 eval : \${$opt:=\$${opt}_default}
605 [ $var = $value ] && return 0
613 enabled ${cfg}_checking && die "Circular dependency for $cfg."
614 disabled ${cfg}_checking && continue
615 enable ${cfg}_checking
618 eval dep_all="\$${cfg}_deps"
619 eval dep_any="\$${cfg}_deps_any"
620 eval dep_sel="\$${cfg}_select"
621 eval dep_sgs="\$${cfg}_suggest"
622 eval dep_ifa="\$${cfg}_if"
623 eval dep_ifn="\$${cfg}_if_any"
625 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
626 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
627 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
629 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
630 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
631 enabled_all $dep_all || disable $cfg
632 enabled_any $dep_any || disable $cfg
633 disabled_any $dep_sel && disable $cfg
635 if enabled $cfg; then
637 enable_deep_weak $dep_sgs
640 disable ${cfg}_checking
649 for cfg in $allopts; do
650 enabled $cfg || continue
651 eval dep_extralibs="\$${cfg}_extralibs"
652 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
660 map 'eval echo "$v \${$v:-no}"' "$@" |
661 awk "BEGIN { split(\"$files\", files) }
663 c = \"$pfx\" toupper(\$1);
669 if (file ~ /\\.h\$/) {
670 printf(\"#define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.asm\$/) {
672 printf(\"%%define %s %d\\n\", c, v) >>file;
673 } else if (file ~ /\\.mak\$/) {
674 n = -v ? \"\" : \"!\";
675 printf(\"%s%s=yes\\n\", n, c) >>file;
685 enabled $v && printf "%s\n" ${v%$suf}
692 eval "$var=\"\$$var $*\""
698 eval "$var=\"$* \$$var\""
704 for tok in $(eval echo \$$var); do
705 uniq_list="$(filter_out $tok $uniq_list) $tok"
707 eval "$var=\"${uniq_list}\""
715 append CFLAGS $($cflags_filter "$@")
719 append ASFLAGS $($asflags_filter "$@")
723 append OBJCFLAGS $($objcflags_filter "$@")
727 append LDFLAGS $($ldflags_filter "$@")
731 append LDEXEFLAGS $($ldflags_filter "$@")
735 append STRIPFLAGS "$@"
739 prepend extralibs $($ldflags_filter "$@")
743 append host_cppflags "$@"
747 append host_cflags $($host_cflags_filter "$@")
751 append host_ldflags $($host_ldflags_filter "$@")
755 append compat_objs $1
757 map 'add_cppflags -D$v' "$@"
762 "$@" >> $logfile 2>&1
766 eval printf '%s\\n' $CC_O
770 eval printf '%s\\n' $CC_E
777 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
784 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
791 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
795 eval printf '%s\\n' $AS_O
802 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
806 log check_inline_asm "$@"
811 check_cc "$@" <<EOF && enable $name
812 void foo(void){ __asm__ volatile($code); }
818 check_inline_asm ${1}_inline "\"$2\""
819 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
827 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
831 eval printf '%s\\n' $LD_O
836 flags=$(filter_out '-l*' "$@")
837 libs=$(filter '-l*' "$@")
838 check_cc $($cflags_filter $flags) || return
839 flags=$($ldflags_filter $flags)
840 libs=$($ldflags_filter $libs)
841 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
846 test "${hdr%.h}" = "${hdr}" &&
847 echo "#include $hdr" ||
848 echo "#include <$hdr>"
858 for hdr in $headers; do
861 echo "int main(void) { $code; return 0; }"
862 } | check_$check "$@"
866 log check_cppflags "$@"
867 check_cc "$@" <<EOF && append CPPFLAGS "$@"
874 set -- $($cflags_filter "$@")
881 log check_cflags "$@"
882 test_cflags "$@" && add_cflags "$@"
887 set -- $($cflags_filter "$@")
888 check_objcc "$@" <<EOF
894 log check_cflags "$@"
895 test_objcflags "$@" && add_objcflags "$@"
899 log test_ldflags "$@"
901 int main(void){ return 0; }
906 log check_ldflags "$@"
907 test_ldflags "$@" && add_ldflags "$@"
911 log test_stripflags "$@"
912 # call check_cc to get a fresh TMPO
914 int main(void) { return 0; }
916 check_cmd $strip $STRIPFLAGS "$@" $TMPO
920 log check_stripflags "$@"
921 test_stripflags "$@" && add_stripflags "$@"
925 log check_header "$@"
929 check_cpp "$@" <<EOF && enable_safe $header
940 check_ld "$@" <<EOF && enable $func
942 int main(void){ $func(); }
947 log check_mathfunc "$@"
951 test $narg = 2 && args="f, g" || args="f"
953 check_ld "$@" <<EOF && enable $func
955 float foo(float f, float g) { return $func($args); }
956 int main(void){ return 0; }
960 check_func_headers(){
961 log check_func_headers "$@"
966 for hdr in $headers; do
969 for func in $funcs; do
970 echo "long check_$func(void) { return (long) $func; }"
972 echo "int main(void) { return 0; }"
973 } | check_ld "$@" && enable $funcs && enable_safe $headers
976 check_cpp_condition(){
977 log check_cpp_condition "$@"
984 #error "unsatisfied condition: $condition"
990 log test_cflags_cpp "$@"
994 set -- $($cflags_filter "$flags")
997 #error "unsatisfied condition: $condition"
1007 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1011 log check_pkg_config "$@"
1016 check_cmd $pkg_config --exists --print-errors $pkg || return
1017 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1018 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1019 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1020 set_safe "${pkg}_cflags" $pkg_cflags &&
1021 set_safe "${pkg}_libs" $pkg_libs
1025 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1031 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1032 # are safe but may not be available everywhere. Thus we use
1033 # raise(SIGTERM) instead. The check is run in a subshell so we
1034 # can redirect the "Terminated" message from the shell. SIGBUS
1035 # is not defined by standard C so it is used conditionally.
1037 (check_exec "$@") >> $logfile 2>&1 <<EOF
1039 static void sighandler(int sig){
1045 int (*func_ptr)(void) = foo;
1047 signal(SIGILL, sighandler);
1048 signal(SIGFPE, sighandler);
1049 signal(SIGSEGV, sighandler);
1051 signal(SIGBUS, sighandler);
1063 disable_safe "$type"
1064 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1068 log check_struct "$@"
1073 disable_safe "${struct}_${member}"
1074 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1075 enable_safe "${struct}_${member}"
1079 log check_builtin "$@"
1085 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1088 check_compile_assert(){
1089 log check_compile_assert "$@"
1095 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1103 check_lib "$headers" $func "$@" || die "ERROR: $name not found"
1106 require_pkg_config(){
1108 check_pkg_config "$@" || die "ERROR: $pkg not found"
1109 add_cflags $(get_safe "${pkg}_cflags")
1110 add_extralibs $(get_safe "${pkg}_libs")
1114 eval printf '%s\\n' $HOSTCC_E
1118 eval printf '%s\\n' $HOSTCC_O
1122 log check_host_cc "$@"
1125 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1129 log check_host_cpp "$@"
1132 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1135 check_host_cppflags(){
1136 log check_host_cppflags "$@"
1137 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1142 check_host_cflags(){
1143 log check_host_cflags "$@"
1144 set -- $($host_cflags_filter "$@")
1145 check_host_cc "$@" <<EOF && append host_cflags "$@"
1150 check_host_cpp_condition(){
1151 log check_host_cpp_condition "$@"
1155 check_host_cpp "$@" <<EOF
1158 #error "unsatisfied condition: $condition"
1166 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1170 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1171 mkdir -p "$(dirname $2)"
1175 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1176 # system-dependent things.
1178 AVCODEC_COMPONENTS="
1186 AVDEVICE_COMPONENTS="
1190 AVFILTER_COMPONENTS="
1193 AVFORMAT_COMPONENTS="
1199 AVRESAMPLE_COMPONENTS=""
1200 AVUTIL_COMPONENTS=""
1204 $AVDEVICE_COMPONENTS
1205 $AVFILTER_COMPONENTS
1206 $AVFORMAT_COMPONENTS
1207 $AVRESAMPLE_COMPONENTS
1212 decode_audio_example
1213 decode_video_example
1214 encode_audio_example
1215 encode_video_example
1216 filter_audio_example
1220 transcode_aac_example
1223 HWACCEL_LIBRARY_NONFREE_LIST="
1227 HWACCEL_LIBRARY_LIST="
1228 $HWACCEL_LIBRARY_NONFREE_LIST
1240 EXTERNAL_LIBRARY_GPL_LIST="
1248 EXTERNAL_LIBRARY_NONFREE_LIST="
1254 EXTERNAL_LIBRARY_VERSION3_LIST="
1261 EXTERNAL_LIBRARY_LIST="
1262 $EXTERNAL_LIBRARY_GPL_LIST
1263 $EXTERNAL_LIBRARY_NONFREE_LIST
1264 $EXTERNAL_LIBRARY_VERSION3_LIST
1305 safe_bitstream_reader
1351 $EXTERNAL_LIBRARY_LIST
1352 $HWACCEL_LIBRARY_LIST
1415 ARCH_EXT_LIST_X86_SIMD="
1443 $ARCH_EXT_LIST_X86_SIMD
1448 ARCH_EXT_LIST_MIPS="
1485 sync_val_compare_and_swap
1499 AVFoundation_AVFoundation_h
1504 cdio_paranoia_paranoia_h
1506 dev_bktr_ioctl_bt848_h
1507 dev_bktr_ioctl_meteor_h
1509 dev_video_bktr_ioctl_bt848_h
1510 dev_video_meteor_ioctl_meteor_h
1518 machine_ioctl_bt848_h
1519 machine_ioctl_meteor_h
1584 GetProcessAffinityMask
1585 GetProcessMemoryInfo
1588 GetSystemTimeAsFileTime
1593 jack_port_get_latency_range
1605 SetConsoleTextAttribute
1616 TOOLCHAIN_FEATURES="
1638 CONDITION_VARIABLE_Ptr
1641 struct_group_source_req
1642 struct_ip_mreq_source
1645 struct_rusage_ru_maxrss
1647 struct_sockaddr_sa_len
1648 struct_sockaddr_storage
1649 struct_v4l2_frmivalenum_discrete
1654 $(add_suffix _external $ARCH_EXT_LIST)
1655 $(add_suffix _inline $ARCH_EXT_LIST)
1672 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1682 # options emitted with CONFIG_ prefix but not available on the command line
1829 # code dependency declarations
1831 # architecture extensions
1836 armv8_deps="aarch64"
1837 neon_deps_any="aarch64 arm"
1838 intrinsics_neon_deps="neon"
1839 vfp_deps_any="aarch64 arm"
1842 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1850 x86_64_select="i686"
1851 x86_64_suggest="fast_cmov"
1854 amd3dnowext_deps="amd3dnow"
1870 mmx_external_deps="yasm"
1871 mmx_inline_deps="inline_asm"
1872 mmx_suggest="mmx_external mmx_inline"
1874 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1875 eval dep=\$${ext}_deps
1876 eval ${ext}_external_deps='"${dep}_external"'
1877 eval ${ext}_inline_deps='"${dep}_inline"'
1878 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1881 aligned_stack_if_any="aarch64 ppc x86"
1882 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1883 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1884 fast_unaligned_if_any="aarch64 ppc x86"
1885 simd_align_16_if_any="altivec neon sse"
1886 simd_align_32_if_any="avx"
1888 # system capabilities
1889 symver_if_any="symver_asm_label symver_gnu_asm"
1890 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1893 atomics_gcc_if="sync_val_compare_and_swap"
1894 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1895 atomics_win32_if="MemoryBarrier"
1896 atomics_native_if_any="$ATOMICS_LIST"
1897 w32threads_deps="atomics_native"
1898 threads_if_any="$THREADS_LIST"
1902 dirac_parse_select="golomb"
1903 error_resilience_select="me_cmp"
1904 faandct_deps="faan fdctdsp"
1905 faanidct_deps="faan idctdsp"
1906 h264dsp_select="startcode"
1907 intrax8_select="blockdsp idctdsp"
1910 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1911 mpeg_er_select="error_resilience"
1912 mpegaudio_select="mpegaudiodsp"
1913 mpegaudiodsp_select="dct"
1914 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1915 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1916 vc1dsp_select="h264chroma qpeldsp startcode"
1918 # decoders / encoders
1919 aac_decoder_select="imdct15 mdct sinewin"
1920 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1921 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1922 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1923 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1924 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1925 adpcm_g722_decoder_select="g722dsp"
1926 adpcm_g722_encoder_select="g722dsp"
1927 aic_decoder_select="golomb idctdsp"
1928 alac_encoder_select="lpc"
1929 als_decoder_select="bswapdsp"
1930 amrnb_decoder_select="lsp"
1931 amrwb_decoder_select="lsp"
1932 amv_decoder_select="sp5x_decoder"
1933 ape_decoder_select="bswapdsp"
1934 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1935 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1936 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1937 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1938 atrac1_decoder_select="mdct sinewin"
1939 atrac3_decoder_select="mdct"
1940 atrac3p_decoder_select="mdct sinewin"
1941 bink_decoder_select="blockdsp hpeldsp"
1942 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1943 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1944 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1945 cllc_decoder_select="bswapdsp"
1946 comfortnoise_encoder_select="lpc"
1947 cook_decoder_select="audiodsp mdct sinewin"
1948 cscd_decoder_select="lzo"
1949 cscd_decoder_suggest="zlib"
1950 dca_decoder_select="fmtconvert mdct"
1951 dds_decoder_select="texturedsp"
1952 dnxhd_decoder_select="blockdsp idctdsp"
1953 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1954 dvvideo_decoder_select="dvprofile idctdsp"
1955 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1956 dxa_decoder_deps="zlib"
1957 dxv_decoder_select="lzf texturedsp"
1958 eac3_decoder_select="ac3_decoder"
1959 eac3_encoder_select="ac3_encoder"
1960 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1961 eatgq_decoder_select="aandcttables idctdsp"
1962 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1963 exr_decoder_deps="zlib"
1964 ffv1_decoder_select="golomb rangecoder"
1965 ffv1_encoder_select="rangecoder"
1966 ffvhuff_decoder_select="huffyuv_decoder"
1967 ffvhuff_encoder_select="huffyuv_encoder"
1968 fic_decoder_select="golomb"
1969 flac_decoder_select="flacdsp golomb"
1970 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1971 flashsv_decoder_deps="zlib"
1972 flashsv_encoder_deps="zlib"
1973 flashsv2_decoder_deps="zlib"
1974 flv_decoder_select="h263_decoder"
1975 flv_encoder_select="h263_encoder"
1976 fourxm_decoder_select="blockdsp bswapdsp"
1977 fraps_decoder_select="bswapdsp huffman"
1978 g2m_decoder_deps="zlib"
1979 g2m_decoder_select="blockdsp idctdsp jpegtables"
1980 h261_decoder_select="mpeg_er mpegvideo"
1981 h261_encoder_select="aandcttables mpegvideoenc"
1982 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1983 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1984 h263i_decoder_select="h263_decoder"
1985 h263p_encoder_select="h263_encoder"
1986 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1987 h264_decoder_suggest="error_resilience"
1988 hap_decoder_select="snappy texturedsp"
1989 hap_encoder_deps="libsnappy"
1990 hap_encoder_select="texturedspenc"
1991 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1992 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1993 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1994 iac_decoder_select="imc_decoder"
1995 imc_decoder_select="bswapdsp fft mdct sinewin"
1996 indeo3_decoder_select="hpeldsp"
1997 indeo4_decoder_select="ividsp"
1998 indeo5_decoder_select="ividsp"
1999 interplay_video_decoder_select="hpeldsp"
2000 jpegls_decoder_select="golomb mjpeg_decoder"
2001 jpegls_encoder_select="golomb"
2002 jv_decoder_select="blockdsp"
2003 lagarith_decoder_select="huffyuvdsp"
2004 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2005 loco_decoder_select="golomb"
2006 magicyuv_decoder_select="huffyuvdsp"
2007 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2008 metasound_decoder_select="lsp mdct sinewin"
2009 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2010 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2011 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2012 mjpegb_decoder_select="mjpeg_decoder"
2013 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2014 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2015 mlp_decoder_select="mlp_parser"
2016 motionpixels_decoder_select="bswapdsp"
2017 mp1_decoder_select="mpegaudio"
2018 mp1float_decoder_select="mpegaudio"
2019 mp2_decoder_select="mpegaudio"
2020 mp2float_decoder_select="mpegaudio"
2021 mp3_decoder_select="mpegaudio"
2022 mp3adu_decoder_select="mpegaudio"
2023 mp3adufloat_decoder_select="mpegaudio"
2024 mp3float_decoder_select="mpegaudio"
2025 mp3on4_decoder_select="mpegaudio"
2026 mp3on4float_decoder_select="mpegaudio"
2027 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2028 mpc8_decoder_select="mpegaudiodsp"
2029 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2030 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2031 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2032 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2033 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2034 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2035 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2036 mpeg4_encoder_select="h263_encoder"
2037 msa1_decoder_select="mss34dsp"
2038 msmpeg4v1_decoder_select="h263_decoder"
2039 msmpeg4v2_decoder_select="h263_decoder"
2040 msmpeg4v2_encoder_select="h263_encoder"
2041 msmpeg4v3_decoder_select="h263_decoder"
2042 msmpeg4v3_encoder_select="h263_encoder"
2043 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2044 mts2_decoder_select="mss34dsp"
2045 mxpeg_decoder_select="mjpeg_decoder"
2046 nellymoser_decoder_select="mdct sinewin"
2047 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2048 nuv_decoder_select="idctdsp lzo"
2049 on2avc_decoder_select="mdct"
2050 opus_decoder_deps="avresample"
2051 opus_decoder_select="imdct15"
2052 png_decoder_deps="zlib"
2053 png_encoder_deps="zlib"
2054 png_encoder_select="huffyuvencdsp"
2055 prores_decoder_select="idctdsp"
2056 prores_encoder_select="fdctdsp"
2057 qcelp_decoder_select="lsp"
2058 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2059 ra_144_encoder_select="audio_frame_queue lpc"
2060 ralf_decoder_select="golomb"
2061 rscc_decoder_deps="zlib"
2062 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2063 rv10_encoder_select="h263_encoder"
2064 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2065 rv20_encoder_select="h263_encoder"
2066 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2067 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2068 screenpresso_decoder_deps="zlib"
2069 shorten_decoder_select="golomb"
2070 sipr_decoder_select="lsp"
2071 sp5x_decoder_select="mjpeg_decoder"
2072 svq1_decoder_select="hpeldsp"
2073 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2074 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2075 svq3_decoder_suggest="zlib"
2076 tak_decoder_select="audiodsp"
2077 tdsc_decoder_deps="zlib"
2078 tdsc_decoder_select="mjpeg_decoder"
2079 theora_decoder_select="vp3_decoder"
2080 thp_decoder_select="mjpeg_decoder"
2081 tiff_decoder_suggest="zlib"
2082 tiff_encoder_suggest="zlib"
2083 truehd_decoder_select="mlp_decoder"
2084 truemotion2_decoder_select="bswapdsp"
2085 truespeech_decoder_select="bswapdsp"
2086 tscc_decoder_deps="zlib"
2087 txd_decoder_select="texturedsp"
2088 twinvq_decoder_select="mdct lsp sinewin"
2089 utvideo_decoder_select="bswapdsp"
2090 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2091 vble_decoder_select="huffyuvdsp"
2092 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2093 vc1image_decoder_select="vc1_decoder"
2094 vorbis_decoder_select="mdct"
2095 vorbis_encoder_select="mdct"
2096 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2097 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2098 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2099 vp6a_decoder_select="vp6_decoder"
2100 vp6f_decoder_select="vp6_decoder"
2101 vp7_decoder_select="h264pred videodsp vp8dsp"
2102 vp8_decoder_select="h264pred videodsp vp8dsp"
2103 vp9_decoder_select="videodsp"
2104 webp_decoder_select="vp8_decoder"
2105 wmapro_decoder_select="mdct sinewin wma_freqs"
2106 wmav1_decoder_select="mdct sinewin wma_freqs"
2107 wmav1_encoder_select="mdct sinewin wma_freqs"
2108 wmav2_decoder_select="mdct sinewin wma_freqs"
2109 wmav2_encoder_select="mdct sinewin wma_freqs"
2110 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2111 wmv1_decoder_select="h263_decoder"
2112 wmv1_encoder_select="h263_encoder"
2113 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2114 wmv2_encoder_select="h263_encoder wmv2dsp"
2115 wmv3_decoder_select="vc1_decoder"
2116 wmv3image_decoder_select="wmv3_decoder"
2117 zerocodec_decoder_deps="zlib"
2118 zlib_decoder_deps="zlib"
2119 zlib_encoder_deps="zlib"
2120 zmbv_decoder_deps="zlib"
2121 zmbv_encoder_deps="zlib"
2123 # hardware accelerators
2124 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2125 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2126 vaapi_deps="va_va_h"
2127 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2128 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2129 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2131 h263_vaapi_hwaccel_deps="vaapi"
2132 h263_vaapi_hwaccel_select="h263_decoder"
2133 h264_d3d11va_hwaccel_deps="d3d11va"
2134 h264_d3d11va_hwaccel_select="h264_decoder"
2135 h264_dxva2_hwaccel_deps="dxva2"
2136 h264_dxva2_hwaccel_select="h264_decoder"
2137 h264_mmal_decoder_deps="mmal"
2138 h264_mmal_decoder_select="mmal"
2139 h264_mmal_hwaccel_deps="mmal"
2140 h264_omx_encoder_deps="omx"
2141 h264_qsv_hwaccel_deps="libmfx"
2142 h264_vaapi_hwaccel_deps="vaapi"
2143 h264_vaapi_hwaccel_select="h264_decoder"
2144 h264_vda_hwaccel_deps="vda"
2145 h264_vda_hwaccel_select="h264_decoder"
2146 h264_vda_old_hwaccel_deps="vda"
2147 h264_vda_old_hwaccel_select="h264_decoder"
2148 h264_vdpau_hwaccel_deps="vdpau"
2149 h264_vdpau_hwaccel_select="h264_decoder"
2150 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2151 hevc_d3d11va_hwaccel_select="hevc_decoder"
2152 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2153 hevc_dxva2_hwaccel_select="hevc_decoder"
2154 hevc_qsv_hwaccel_deps="libmfx"
2155 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2156 hevc_vdpau_hwaccel_select="hevc_decoder"
2157 mpeg1_vdpau_hwaccel_deps="vdpau"
2158 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2159 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2160 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2161 mpeg2_dxva2_hwaccel_deps="dxva2"
2162 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2163 mpeg2_mmal_decoder_deps="mmal"
2164 mpeg2_mmal_decoder_select="mmal"
2165 mpeg2_mmal_hwaccel_deps="mmal"
2166 mpeg2_qsv_hwaccel_deps="libmfx"
2167 mpeg2_vaapi_hwaccel_deps="vaapi"
2168 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2169 mpeg2_vdpau_hwaccel_deps="vdpau"
2170 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2171 mpeg4_omx_encoder_deps="omx"
2172 mpeg4_vaapi_hwaccel_deps="vaapi"
2173 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2174 mpeg4_vdpau_hwaccel_deps="vdpau"
2175 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2176 vc1_d3d11va_hwaccel_deps="d3d11va"
2177 vc1_d3d11va_hwaccel_select="vc1_decoder"
2178 vc1_dxva2_hwaccel_deps="dxva2"
2179 vc1_dxva2_hwaccel_select="vc1_decoder"
2180 vc1_mmal_decoder_deps="mmal"
2181 vc1_mmal_decoder_select="mmal"
2182 vc1_mmal_hwaccel_deps="mmal"
2183 vc1_vaapi_hwaccel_deps="vaapi"
2184 vc1_vaapi_hwaccel_select="vc1_decoder"
2185 vc1_vdpau_hwaccel_deps="vdpau"
2186 vc1_vdpau_hwaccel_select="vc1_decoder"
2187 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2188 vp8_vaapi_hwaccel_select="vp8_decoder"
2189 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2190 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2191 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2192 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2194 # hardware-accelerated codecs
2195 nvenc_deps_any="dlopen LoadLibrary"
2196 nvenc_extralibs='$ldl'
2197 omx_deps="dlopen pthreads"
2198 omx_extralibs='$ldl'
2201 vaapi_encode_deps="vaapi"
2203 hwupload_cuda_filter_deps="cuda"
2204 scale_npp_filter_deps="cuda libnpp"
2206 h264_nvenc_encoder_deps="nvenc"
2207 h264_qsv_decoder_deps="libmfx"
2208 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2209 h264_qsv_encoder_deps="libmfx"
2210 h264_qsv_encoder_select="qsvenc"
2211 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2212 h264_vaapi_encoder_select="vaapi_encode golomb"
2214 hevc_nvenc_encoder_deps="nvenc"
2215 hevc_qsv_decoder_deps="libmfx"
2216 hevc_qsv_encoder_deps="libmfx"
2217 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2218 hevc_qsv_encoder_select="qsvenc"
2219 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2220 hevc_vaapi_encoder_select="vaapi_encode golomb"
2221 mpeg2_qsv_decoder_deps="libmfx"
2222 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2223 mpeg2_qsv_encoder_deps="libmfx"
2224 mpeg2_qsv_encoder_select="qsvenc"
2226 nvenc_h264_encoder_deps="nvenc"
2227 nvenc_hevc_encoder_deps="nvenc"
2230 h264_parser_select="golomb h264dsp h264parse"
2231 hevc_parser_select="golomb"
2232 mpegvideo_parser_select="mpegvideo"
2233 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2234 vc1_parser_select="vc1dsp"
2237 mjpeg2jpeg_bsf_select="jpegtables"
2239 # external libraries
2240 libdcadec_decoder_deps="libdcadec"
2241 libfaac_encoder_deps="libfaac"
2242 libfaac_encoder_select="audio_frame_queue"
2243 libfdk_aac_decoder_deps="libfdk_aac"
2244 libfdk_aac_encoder_deps="libfdk_aac"
2245 libfdk_aac_encoder_select="audio_frame_queue"
2246 libgsm_decoder_deps="libgsm"
2247 libgsm_encoder_deps="libgsm"
2248 libgsm_ms_decoder_deps="libgsm"
2249 libgsm_ms_encoder_deps="libgsm"
2250 libilbc_decoder_deps="libilbc"
2251 libilbc_encoder_deps="libilbc"
2252 libkvazaar_encoder_deps="libkvazaar"
2253 libmp3lame_encoder_deps="libmp3lame"
2254 libmp3lame_encoder_select="audio_frame_queue"
2255 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2256 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2257 libopencore_amrnb_encoder_select="audio_frame_queue"
2258 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2259 libopenh264_decoder_deps="libopenh264"
2260 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2261 libopenh264_encoder_deps="libopenh264"
2262 libopenjpeg_decoder_deps="libopenjpeg"
2263 libopenjpeg_encoder_deps="libopenjpeg"
2264 libopus_decoder_deps="libopus"
2265 libopus_encoder_deps="libopus"
2266 libopus_encoder_select="audio_frame_queue"
2267 libschroedinger_decoder_deps="libschroedinger"
2268 libschroedinger_encoder_deps="libschroedinger"
2269 libspeex_decoder_deps="libspeex"
2270 libspeex_encoder_deps="libspeex"
2271 libspeex_encoder_select="audio_frame_queue"
2272 libtheora_encoder_deps="libtheora"
2273 libtwolame_encoder_deps="libtwolame"
2274 libvo_aacenc_encoder_deps="libvo_aacenc"
2275 libvo_aacenc_encoder_select="audio_frame_queue"
2276 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2277 libvorbis_encoder_deps="libvorbis"
2278 libvorbis_encoder_select="audio_frame_queue"
2279 libvpx_vp8_decoder_deps="libvpx"
2280 libvpx_vp8_encoder_deps="libvpx"
2281 libvpx_vp9_decoder_deps="libvpx"
2282 libvpx_vp9_encoder_deps="libvpx"
2283 libwavpack_encoder_deps="libwavpack"
2284 libwebp_encoder_deps="libwebp"
2285 libx262_encoder_deps="libx262"
2286 libx264_encoder_deps="libx264"
2287 libx265_encoder_deps="libx265"
2288 libxavs_encoder_deps="libxavs"
2289 libxvid_encoder_deps="libxvid"
2292 ac3_demuxer_select="ac3_parser"
2293 asf_demuxer_select="riffdec"
2294 asf_muxer_select="riffenc"
2295 asf_stream_muxer_select="asf_muxer"
2296 avi_demuxer_select="iso_media riffdec"
2297 avi_muxer_select="riffenc"
2298 avisynth_demuxer_deps="avisynth"
2299 avisynth_demuxer_select="riffdec"
2300 caf_demuxer_select="iso_media riffdec"
2301 dash_muxer_select="mp4_muxer"
2302 dirac_demuxer_select="dirac_parser"
2303 dv_demuxer_select="dvprofile"
2304 dv_muxer_select="dvprofile"
2305 dxa_demuxer_select="riffdec"
2306 eac3_demuxer_select="ac3_parser"
2307 f4v_muxer_select="mov_muxer"
2308 flac_demuxer_select="flac_parser"
2309 hds_muxer_select="flv_muxer"
2310 hls_muxer_select="mpegts_muxer"
2311 ipod_muxer_select="mov_muxer"
2312 ismv_muxer_select="mov_muxer"
2313 matroska_audio_muxer_select="matroska_muxer"
2314 matroska_demuxer_select="iso_media riffdec"
2315 matroska_demuxer_suggest="bzlib lzo zlib"
2316 matroska_muxer_select="iso_media riffenc"
2317 mmf_muxer_select="riffenc"
2318 mov_demuxer_select="iso_media riffdec"
2319 mov_demuxer_suggest="zlib"
2320 mov_muxer_select="iso_media riffenc rtpenc_chain"
2321 mp3_demuxer_select="mpegaudio_parser"
2322 mp4_muxer_select="mov_muxer"
2323 mpegts_demuxer_select="iso_media"
2324 mpegts_muxer_select="adts_muxer latm_muxer"
2325 mpegtsraw_demuxer_select="mpegts_demuxer"
2326 mxf_d10_muxer_select="mxf_muxer"
2327 nut_muxer_select="riffenc"
2328 nuv_demuxer_select="riffdec"
2329 oga_muxer_select="ogg_muxer"
2330 ogg_demuxer_select="dirac_parse"
2331 opus_muxer_select="ogg_muxer"
2332 psp_muxer_select="mov_muxer"
2333 rtp_demuxer_select="sdp_demuxer"
2334 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2335 rtsp_demuxer_select="http_protocol rtpdec"
2336 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2337 sap_demuxer_select="sdp_demuxer"
2338 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2339 sdp_demuxer_select="rtpdec"
2340 smoothstreaming_muxer_select="ismv_muxer"
2341 spdif_muxer_select="aac_parser"
2342 spx_muxer_select="ogg_muxer"
2343 swf_demuxer_suggest="zlib"
2344 tak_demuxer_select="tak_parser"
2345 tg2_muxer_select="mov_muxer"
2346 tgp_muxer_select="mov_muxer"
2347 w64_demuxer_select="wav_demuxer"
2348 wav_demuxer_select="riffdec"
2349 wav_muxer_select="riffenc"
2350 webm_muxer_select="iso_media riffenc"
2351 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2352 wtv_demuxer_select="mpegts_demuxer riffdec"
2353 xmv_demuxer_select="riffdec"
2354 xwma_demuxer_select="riffdec"
2357 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2358 alsa_outdev_deps="alsa_asoundlib_h"
2359 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2360 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2361 dv1394_indev_deps="dv1394"
2362 dv1394_indev_select="dv_demuxer"
2363 fbdev_indev_deps="linux_fb_h"
2364 jack_indev_deps="jack_jack_h"
2365 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2366 libcdio_indev_deps="libcdio"
2367 libdc1394_indev_deps="libdc1394"
2368 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2369 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2370 pulse_indev_deps="libpulse"
2371 sndio_indev_deps="sndio_h"
2372 sndio_outdev_deps="sndio_h"
2373 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2374 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2375 vfwcap_indev_extralibs="-lavicap32"
2376 xcbgrab_indev_deps="libxcb"
2379 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2380 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2381 ffrtmpcrypt_protocol_select="tcp_protocol"
2382 ffrtmphttp_protocol_deps="!librtmp_protocol"
2383 ffrtmphttp_protocol_select="http_protocol"
2384 gopher_protocol_select="network"
2385 http_protocol_select="tcp_protocol"
2386 httpproxy_protocol_select="tcp_protocol"
2387 https_protocol_select="tls_protocol"
2388 icecast_protocol_select="http_protocol"
2389 librtmp_protocol_deps="librtmp"
2390 librtmpe_protocol_deps="librtmp"
2391 librtmps_protocol_deps="librtmp"
2392 librtmpt_protocol_deps="librtmp"
2393 librtmpte_protocol_deps="librtmp"
2394 mmsh_protocol_select="http_protocol"
2395 mmst_protocol_select="network"
2396 rtmp_protocol_deps="!librtmp_protocol"
2397 rtmp_protocol_select="tcp_protocol"
2398 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2399 rtmps_protocol_deps="!librtmp_protocol"
2400 rtmps_protocol_select="tls_protocol"
2401 rtmpt_protocol_select="ffrtmphttp_protocol"
2402 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2403 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2404 rtp_protocol_select="udp_protocol"
2405 sctp_protocol_deps="struct_sctp_event_subscribe"
2406 sctp_protocol_select="network"
2407 srtp_protocol_select="rtp_protocol srtp"
2408 tcp_protocol_select="network"
2409 tls_gnutls_protocol_deps="gnutls"
2410 tls_gnutls_protocol_select="tcp_protocol"
2411 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2412 tls_openssl_protocol_select="tcp_protocol"
2413 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2414 udp_protocol_select="network"
2415 unix_protocol_deps="sys_un_h"
2416 unix_protocol_select="network"
2419 blackframe_filter_deps="gpl"
2420 boxblur_filter_deps="gpl"
2421 bs2b_filter_deps="libbs2b"
2422 cropdetect_filter_deps="gpl"
2423 deinterlace_qsv_filter_deps="libmfx"
2424 delogo_filter_deps="gpl"
2425 drawtext_filter_deps="libfreetype"
2426 frei0r_filter_deps="frei0r dlopen"
2427 frei0r_filter_extralibs='$ldl'
2428 frei0r_src_filter_deps="frei0r dlopen"
2429 frei0r_src_filter_extralibs='$ldl'
2430 hdcd_filter_deps="libhdcd"
2431 hqdn3d_filter_deps="gpl"
2432 interlace_filter_deps="gpl"
2433 ocv_filter_deps="libopencv"
2434 resample_filter_deps="avresample"
2435 scale_filter_deps="swscale"
2436 scale_qsv_filter_deps="libmfx"
2437 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2440 decode_audio_example_deps="avcodec avutil"
2441 decode_video_example_deps="avcodec avutil"
2442 encode_audio_example_deps="avcodec avutil"
2443 encode_video_example_deps="avcodec avutil"
2444 filter_audio_example_deps="avfilter avutil"
2445 metadata_example_deps="avformat avutil"
2446 output_example_deps="avcodec avformat avutil swscale"
2447 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2448 transcode_aac_example_deps="avcodec avformat avresample"
2450 # libraries, in linking order
2451 avcodec_deps="avutil"
2452 avdevice_deps="avformat avcodec avutil"
2453 avfilter_deps="avutil"
2454 avformat_deps="avcodec avutil"
2455 avresample_deps="avutil"
2456 swscale_deps="avutil"
2459 avconv_deps="avcodec avfilter avformat avresample swscale"
2460 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2461 fps_filter null_filter resample_filter scale_filter
2463 avplay_deps="avcodec avfilter avformat avresample sdl"
2464 avplay_libs='$sdl_libs'
2465 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2466 avprobe_deps="avcodec avformat"
2470 texi2html_deps="doc"
2472 # default parameters
2474 logfile="config.log"
2476 # installation paths
2477 prefix_default="/usr/local"
2478 bindir_default='${prefix}/bin'
2479 datadir_default='${prefix}/share/avconv'
2480 docdir_default='${prefix}/share/doc/libav'
2481 incdir_default='${prefix}/include'
2482 libdir_default='${prefix}/lib'
2483 mandir_default='${prefix}/share/man'
2484 shlibdir_default="$libdir_default"
2489 host_cc_default="gcc"
2494 pkg_config_default=pkg-config
2497 version_script='--version-script'
2501 arch_default=$(uname -m)
2506 target_os_default=$(tolower $(uname -s))
2507 host_os=$target_os_default
2509 # configurable options
2510 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2515 enable faan faandct faanidct
2516 enable optimizations
2517 enable safe_bitstream_reader
2519 enable swscale_alpha
2520 enable valgrind_backtrace
2522 # By default, enable only those hwaccels that have no external dependencies.
2523 enable d3d11va dxva2 vda vdpau
2526 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2529 FULLNAME='$(NAME)$(BUILDSUF)'
2530 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2533 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2534 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2535 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2536 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2537 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2538 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2539 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2562 host_cflags_filter=echo
2563 host_ldflags_filter=echo
2565 target_path='$(CURDIR)'
2567 # since the object filename is not given with the -MM flag, the compiler
2568 # is only able to print the basename, and we must add the path ourselves
2569 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2573 if test -f configure; then
2576 source_path=$(cd $(dirname "$0"); pwd)
2577 echo "$source_path" | grep -q '[[:blank:]]' &&
2578 die "Out of tree builds are impossible with whitespace in source path."
2579 test -e "$source_path/config.h" &&
2580 die "Out of tree builds are impossible with config.h in source dir."
2587 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2593 file=$source_path/$3
2594 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2597 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2598 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2599 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2600 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2601 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2602 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2603 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2604 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2605 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2607 find_things_extern(){
2610 file=$source_path/$3
2611 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2614 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2615 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2631 for n in $COMPONENT_LIST; do
2632 v=$(toupper ${n%s})_LIST
2634 eval ${n}_if_any="\$$v"
2637 enable $ARCH_EXT_LIST
2640 echo "Unknown option \"$1\"."
2641 echo "See $0 --help for available options."
2646 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2652 echo $* | sed s/$suffix//g | print_3_columns
2664 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2665 echo "prob ${prob:-0.5}"
2673 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2674 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2683 --extra-ldexeflags=*)
2684 add_ldexeflags $optval
2687 add_extralibs $optval
2690 disable $INDEV_LIST $OUTDEV_LIST
2693 debuglevel="$optval"
2696 disable $PROGRAM_LIST
2698 --disable-everything)
2699 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2702 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2703 disable $LIBRARY_LIST $PROGRAM_LIST doc
2705 --enable-random|--disable-random)
2706 action=${opt%%-random}
2707 do_random ${action#--} $COMPONENT_LIST
2709 --enable-random=*|--disable-random=*)
2710 action=${opt%%-random=*}
2711 do_random ${action#--} $optval
2713 --enable-*=*|--disable-*=*)
2714 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2715 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2716 eval list=\$$(toupper $thing)_LIST
2717 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2718 $action $(filter "$name" $list)
2720 --enable-avserver|--disable-avserver*)
2721 warn "avserver has been removed, the ${opt} option is only"\
2722 "provided for compatibility and will be removed in the future"
2724 --enable-?*|--disable-?*)
2725 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2726 if is_in $option $COMPONENT_LIST; then
2727 test $action = disable && action=unset
2728 eval $action \$$(toupper ${option%s})_LIST
2729 elif is_in $option $CMDLINE_SELECT; then
2736 NAME="${opt#--list-}"
2737 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2739 eval show_list $NAME \$$(toupper $NAME)_LIST
2741 --help|-h) show_help
2744 optname="${opt%%=*}"
2745 optname="${optname#--}"
2746 optname=$(echo "$optname" | sed 's/-/_/g')
2747 if is_in $optname $CMDLINE_SET; then
2748 eval $optname='$optval'
2749 elif is_in $optname $CMDLINE_APPEND; then
2750 append $optname "$optval"
2762 disabled logging && logfile=/dev/null
2764 # Disable all the library-specific components if the library itself
2765 # is disabled, see AVCODEC_LIST and following _LIST variables.
2767 disable_components(){
2768 disabled ${1} && disable $(
2769 eval components="\$$(toupper ${1})_COMPONENTS"
2770 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2774 map 'disable_components $v' $LIBRARY_LIST
2776 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2779 case "$toolchain" in
2781 cc_default="${toolchain%-asan}"
2782 add_cflags -fsanitize=address
2783 add_ldflags -fsanitize=address
2786 cc_default="${toolchain%-msan}"
2787 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2788 add_ldflags -fsanitize=memory
2791 cc_default="${toolchain%-tsan}"
2792 add_cflags -fsanitize=thread -pie
2793 add_ldflags -fsanitize=thread -pie
2794 case "$toolchain" in
2802 cc_default="${toolchain%-usan}"
2803 add_cflags -fsanitize=undefined
2804 add_ldflags -fsanitize=undefined
2805 case "$toolchain" in
2812 target_exec_default="valgrind"
2813 case "$toolchain" in
2815 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2818 target_exec_args="--track-origins=yes --leak-check=full"
2823 # Check whether the current MSVC version needs the C99 converter.
2824 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2825 # support enough of C99 to build libav. Default to the new
2826 # behaviour if the regexp was unable to match anything, since this
2827 # successfully parses the version number of existing supported
2828 # versions that require the converter (MSVC 2010 and 2012).
2829 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2830 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2833 cc_default="c99wrap cl"
2835 ld_default="$source_path/compat/windows/mslink"
2836 nm_default="dumpbin -symbols"
2843 target_os_default="win32"
2844 # Use a relative path for TMPDIR. This makes sure all the
2845 # ffconf temp files are written with a relative path, avoiding
2846 # issues with msys/win32 path conversion for MSVC parameters
2847 # such as -Fo<file> or -out:<file>.
2853 nm_default="dumpbin -symbols"
2855 target_os_default="win32"
2859 add_cflags -fprofile-arcs -ftest-coverage
2860 add_ldflags -fprofile-arcs -ftest-coverage
2863 add_cflags -fprofile-arcs -ftest-coverage
2864 add_ldflags --coverage
2867 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2868 add_cflags -fno-strict-overflow -fstack-protector-all
2869 add_ldflags -Wl,-z,relro -Wl,-z,now
2872 die "Unknown toolchain $toolchain"
2876 test -n "$cross_prefix" && enable cross_compile
2878 if enabled cross_compile; then
2879 test -n "$arch" && test -n "$target_os" ||
2880 die "Must specify target arch and OS when cross-compiling"
2883 ar_default="${cross_prefix}${ar_default}"
2884 cc_default="${cross_prefix}${cc_default}"
2885 occ_default="${cross_prefix}${occ_default}"
2886 nm_default="${cross_prefix}${nm_default}"
2887 pkg_config_default="${cross_prefix}${pkg_config_default}"
2888 ranlib="${cross_prefix}${ranlib}"
2889 strip="${cross_prefix}${strip}"
2891 sysinclude_default="${sysroot}/usr/include"
2893 set_default arch cc pkg_config sysinclude target_exec target_os
2894 enabled cross_compile || host_cc_default=$cc
2897 if ! $pkg_config --version >/dev/null 2>&1; then
2898 warn "$pkg_config not found, library detection may fail."
2904 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2908 EXESUF=$(exesuf $target_os)
2909 HOSTEXESUF=$(exesuf $host_os)
2911 # set temporary file name
2912 : ${TMPDIR:=$TEMPDIR}
2916 if ! check_cmd mktemp -u XXXXXX; then
2917 # simple replacement for missing mktemp
2918 # NOT SAFE FOR GENERAL USE
2920 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2925 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2926 (set -C; exec > $tmp) 2>/dev/null ||
2927 die "Unable to create temporary file in $TMPDIR."
2928 append TMPFILES $tmp
2932 trap 'rm -f -- $TMPFILES' EXIT
2936 tmpfile TMPE $EXESUF
2947 # make sure we can execute files in $TMPDIR
2948 cat > $TMPSH 2>> $logfile <<EOF
2951 chmod +x $TMPSH >> $logfile 2>&1
2952 if ! $TMPSH >> $logfile 2>&1; then
2954 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2955 variable to another directory and make sure that it is not mounted noexec.
2957 die "Sanity test failed."
2963 # Filter out MSVC cl.exe options from cflags that shouldn't
2964 # be passed to gas-preprocessor
2974 -std=c99) echo -c99 ;;
2975 -mcpu=*) echo -arch ${flag#*=} ;;
2976 -mieee) echo -ieee ;;
2977 -O*|-fast) echo $flag ;;
2978 -fno-math-errno) echo -assume nomath_errno ;;
2980 -Wall) echo -msg_enable level2 ;;
2981 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2982 -Wl,*) echo $flag ;;
2992 -Wno-switch) echo -Wno-switch-enum ;;
2993 -Wno-format-zero-length) ;;
2994 -Wdisabled-optimization) ;;
2995 -Wno-pointer-sign) echo -Wno-other ;;
3001 msvc_common_flags(){
3004 # In addition to specifying certain flags under the compiler
3005 # specific filters, they must be specified here as well or else the
3006 # generic catch all at the bottom will print the original flag.
3010 -fomit-frame-pointer) ;;
3014 -fno-signed-zeros) ;;
3018 -lz) echo zlib.lib ;;
3019 -lavifil32) echo vfw32.lib ;;
3020 -lavicap32) echo vfw32.lib user32.lib ;;
3021 -lx264) echo libx264.lib ;;
3022 -l*) echo ${flag#-l}.lib ;;
3023 -L*) echo -libpath:${flag#-L} ;;
3030 msvc_common_flags "$@"
3033 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3034 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3035 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3036 -wd4273 -wd4554 -wd4701 ;;
3042 msvc_common_flags "$@"
3045 # Despite what Intel's documentation says -Wall, which is supported
3046 # on Windows, does enable remarks so disable them here.
3047 -Wall) echo $flag -Qdiag-disable:remark ;;
3048 -std=c99) echo -Qstd=c99 ;;
3056 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3057 -fomit-frame-pointer) echo -Mnoframe ;;
3068 case "${flag#*=}" in
3069 native) echo -xtarget=native ;;
3070 v9|niagara) echo -xarch=sparc ;;
3071 ultrasparc) echo -xarch=sparcvis ;;
3072 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3073 i586|pentium) echo -xchip=pentium ;;
3074 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3075 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3076 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3077 pentium4*) echo -xtarget=pentium4 ;;
3078 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3079 *-sse3) echo -xarch=sse3 ;;
3080 core2) echo -xarch=ssse3 -xchip=core2 ;;
3081 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3082 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3083 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3084 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3085 k8|opteron|athlon64|athlon-fx)
3086 echo -xarch=sse2a ;;
3087 athlon*) echo -xarch=pentium_proa ;;
3090 -std=c99) echo -xc99 ;;
3091 -fomit-frame-pointer) echo -xregs=frameptr ;;
3092 -fPIC) echo -KPIC -xcode=pic32 ;;
3093 -W*,*) echo $flag ;;
3094 -f*-*|-W*|-mimpure-text) ;;
3105 case "${flag#*=}" in
3106 armv7-a|cortex-a*) echo -mv=7a8 ;;
3107 armv7-r|cortex-r*) echo -mv=7r4 ;;
3108 armv7-m|cortex-m*) echo -mv=7m3 ;;
3109 armv6*|arm11*) echo -mv=6 ;;
3110 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3112 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3115 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3116 -mfpu=vfp) echo --float_support=vfpv2 ;;
3117 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3118 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3119 -msoft-float) echo --float_support=vfplib ;;
3120 -O[0-3]|-mf=*) echo $flag ;;
3122 -pds=*) echo $flag ;;
3123 -D*|-I*) echo $flag ;;
3124 --gcc|--abi=*) echo $flag ;;
3134 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3135 unset _ld_o _ldflags _ld_lib _ld_path
3136 unset _depflags _DEPCMD _DEPFLAGS
3139 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3141 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3142 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3143 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3146 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3148 gcc_version=$($_cc --version | head -n1)
3149 gcc_basever=$($_cc -dumpversion)
3150 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3151 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3152 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3153 if ! $_cc -dumpversion | grep -q '^2\.'; then
3154 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3158 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3160 _ident=$($_cc --version | head -n1)
3165 elif $_cc -v 2>&1 | grep -q xlc; then
3167 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3169 _cflags_size='-O5 -qcompact'
3170 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3172 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3174 _cflags_speed='-fast'
3176 _flags_filter=ccc_flags
3177 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3178 test -d "$sysroot" || die "No valid sysroot specified."
3180 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3181 armcc_conf="$PWD/armcc.conf"
3182 $_cc --arm_linux_configure \
3183 --arm_linux_config_file="$armcc_conf" \
3184 --configure_sysroot="$sysroot" \
3185 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3186 die "Error creating armcc configuration file."
3187 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3188 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3189 as_default="${cross_prefix}gcc"
3193 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3195 _ident=$($_cc -version | head -n1 | tr -s ' ')
3196 _flags='--gcc --abi=eabi -me'
3199 _depflags='-ppa -ppd=$(@:.o=.d)'
3200 _cflags_speed='-O3 -mf=5'
3201 _cflags_size='-O3 -mf=2'
3202 _flags_filter=tms470_flags
3203 elif $_cc -v 2>&1 | grep -q clang; then
3205 _ident=$($_cc --version 2>/dev/null | head -n1)
3206 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3209 elif $_cc -V 2>&1 | grep -q Sun; then
3211 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3212 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3213 _DEPFLAGS='-xM1 -xc99'
3216 _cflags_size='-O5 -xspace'
3217 _flags_filter=suncc_flags
3218 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3220 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3221 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3224 _flags_filter='filter_out -Wdisabled-optimization'
3225 elif $_cc -v 2>&1 | grep -q Open64; then
3227 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3228 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3231 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3232 elif $_cc -V 2>&1 | grep -q Portland; then
3234 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3235 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3236 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3237 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3239 _flags_filter=pgi_flags
3240 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3242 _ident=$($_cc | head -n1)
3243 # 4509: "This form of conditional instruction is deprecated"
3244 _flags="-nologo -ignore 4509"
3245 _flags_filter=armasm_flags
3246 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3248 _ident=$($_cc 2>&1 | head -n1)
3249 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3250 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3253 if $_cc -nologo- 2>&1 | grep -q Linker; then
3260 _flags_filter=msvc_flags
3262 _ld_path='-libpath:'
3264 elif $_cc 2>&1 | grep -q Intel; then
3266 _ident=$($_cc 2>&1 | head -n1)
3267 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3268 # Not only is O3 broken on 13.x+ but it is slower on all previous
3269 # versions (tested) as well.
3271 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3272 if $_cc 2>&1 | grep -q Linker; then
3279 _flags_filter=icl_flags
3281 _ld_path='-libpath:'
3282 # -Qdiag-error to make icl error when seeing certain unknown arguments
3283 _flags='-nologo -Qdiag-error:4044,10157'
3284 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3285 # with MSVC which enables it by default.
3286 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3287 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3288 # lld can emulate multiple different linkers; in ms link.exe mode,
3289 # the -? parameter gives the help output which contains an identifyable
3290 # string, while it gives an error in other modes.
3292 # The link.exe mode doesn't have a switch for getting the version,
3293 # but we can force it back to gnu mode and get the version from there.
3294 _ident=$($_cc -flavor gnu --version)
3296 _flags_filter=msvc_flags
3298 _ld_path='-libpath:'
3299 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3301 _ident=$($_cc --version | head -n1)
3305 _flags_filter=cparser_flags
3308 eval ${pfx}_type=\$_type
3309 eval ${pfx}_ident=\$_ident
3313 eval ${1}_C=\${_cc_c-\${${1}_C}}
3314 eval ${1}_E=\${_cc_e-\${${1}_E}}
3315 eval ${1}_O=\${_cc_o-\${${1}_O}}
3317 if [ -n "$_depflags" ]; then
3318 eval ${1}_DEPFLAGS=\$_depflags
3320 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3321 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3322 eval DEP${1}FLAGS=\$_flags
3327 cflags_filter=$_flags_filter
3328 cflags_speed=$_cflags_speed
3329 cflags_size=$_cflags_size
3330 cflags_noopt=$_cflags_noopt
3331 add_cflags $_flags $_cflags
3332 cc_ldflags=$_ldflags
3335 probe_cc hostcc "$host_cc"
3336 host_cflags_filter=$_flags_filter
3337 add_host_cflags $_flags $_cflags
3340 test -n "$cc_type" && enable $cc_type ||
3341 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3343 : ${as_default:=$cc}
3344 : ${objcc_default:=$cc}
3345 : ${dep_cc_default:=$cc}
3346 : ${ld_default:=$cc}
3347 : ${host_ld_default:=$host_cc}
3348 set_default ar as objcc dep_cc ld host_ld
3351 asflags_filter=$_flags_filter
3352 add_asflags $_flags $_cflags
3355 probe_cc objcc "$objcc"
3356 objcflags_filter=$_flags_filter
3357 add_objcflags $_flags $_cflags
3361 ldflags_filter=$_flags_filter
3362 add_ldflags $_flags $_ldflags
3363 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3365 LD_LIB=${_ld_lib-$LD_LIB}
3366 LD_PATH=${_ld_path-$LD_PATH}
3368 probe_cc hostld "$host_ld"
3369 host_ldflags_filter=$_flags_filter
3370 add_host_ldflags $_flags $_ldflags
3371 HOSTLD_O=${_ld_o-$HOSTLD_O}
3373 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3374 probe_cc depcc "$dep_cc"
3375 CCDEP=${_DEPCMD:-$DEPCMD}
3376 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3380 if $ar 2>&1 | grep -q Microsoft; then
3383 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3386 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3387 arflags='-Xany -r -c'
3394 add_cflags $extra_cflags
3395 add_objcflags $extra_objcflags
3396 add_asflags $extra_cflags
3398 if test -n "$sysroot"; then
3401 add_cppflags --sysroot="$sysroot"
3402 add_ldflags --sysroot="$sysroot"
3405 add_cppflags -I"$sysinclude"
3406 add_ldflags --sysroot="$sysroot"
3411 if test "$cpu" = host; then
3412 enabled cross_compile &&
3413 die "--cpu=host makes no sense when cross-compiling."
3418 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3420 s/.*$1=\\([^ ]*\\).*/\\1/
3425 cpu=$(check_native -march || check_native -mcpu)
3429 test "${cpu:-host}" = host &&
3430 die "--cpu=host not supported with compiler $cc"
3433 # Deal with common $arch aliases
3457 "Power Macintosh"|ppc*|powerpc*)
3472 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3477 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3480 # Add processor-specific flags
3481 if enabled aarch64; then
3485 cpuflags="-march=$cpu"
3488 cpuflags="-mcpu=$cpu"
3492 elif enabled alpha; then
3494 cpuflags="-mcpu=$cpu"
3496 elif enabled arm; then
3499 check_cpp_condition stddef.h \
3500 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3505 if check_arm_arch 4; then echo armv4
3506 elif check_arm_arch 4T; then echo armv4t
3507 elif check_arm_arch 5; then echo armv5
3508 elif check_arm_arch 5E; then echo armv5e
3509 elif check_arm_arch 5T; then echo armv5t
3510 elif check_arm_arch 5TE; then echo armv5te
3511 elif check_arm_arch 5TEJ; then echo armv5te
3512 elif check_arm_arch 6; then echo armv6
3513 elif check_arm_arch 6J; then echo armv6j
3514 elif check_arm_arch 6K; then echo armv6k
3515 elif check_arm_arch 6Z; then echo armv6z
3516 elif check_arm_arch 6ZK; then echo armv6zk
3517 elif check_arm_arch 6T2; then echo armv6t2
3518 elif check_arm_arch 7; then echo armv7
3519 elif check_arm_arch 7A 7_A; then echo armv7-a
3520 elif check_arm_arch 7S; then echo armv7-a
3521 elif check_arm_arch 7R 7_R; then echo armv7-r
3522 elif check_arm_arch 7M 7_M; then echo armv7-m
3523 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3524 elif check_arm_arch 8A 8_A; then echo armv8-a
3528 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3532 cpuflags="-march=$cpu"
3533 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3536 cpuflags="-mcpu=$cpu"
3538 cortex-a*) subarch=armv7a ;;
3539 cortex-r*) subarch=armv7r ;;
3540 cortex-m*) enable thumb; subarch=armv7m ;;
3541 arm11*) subarch=armv6 ;;
3542 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3543 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3544 *) subarch=$(probe_arm_arch) ;;
3550 armv5t*) enable fast_clz ;;
3551 armv[6-8]*) enable fast_clz fast_unaligned ;;
3554 elif enabled avr32; then
3559 cpuflags="-mpart=$cpu"
3563 cpuflags="-march=$cpu"
3567 cpuflags="-mcpu=$cpu"
3571 cpuflags="-march=$cpu"
3575 elif enabled bfin; then
3577 cpuflags="-mcpu=$cpu"
3579 elif enabled mips; then
3581 cpuflags="-march=$cpu"
3583 elif enabled ppc; then
3587 case $(tolower $cpu) in
3588 601|ppc601|powerpc601)
3589 cpuflags="-mcpu=601"
3592 603*|ppc603*|powerpc603*)
3593 cpuflags="-mcpu=603"
3596 604*|ppc604*|powerpc604*)
3597 cpuflags="-mcpu=604"
3600 g3|75*|ppc75*|powerpc75*)
3601 cpuflags="-mcpu=750"
3604 g4|745*|ppc745*|powerpc745*)
3605 cpuflags="-mcpu=7450"
3608 74*|ppc74*|powerpc74*)
3609 cpuflags="-mcpu=7400"
3612 g5|970|ppc970|powerpc970)
3613 cpuflags="-mcpu=970"
3617 cpuflags="-mcpu=$cpu"
3621 cpuflags="-mcpu=$cpu"
3625 cpuflags="-mcpu=cell"
3630 cpuflags="-mcpu=e500mc"
3634 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3639 cpuflags="-mcpu=8540 -mhard-float"
3645 elif enabled sparc; then
3648 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3649 cpuflags="-mcpu=$cpu"
3651 ultrasparc*|niagara[234])
3652 cpuflags="-mcpu=$cpu"
3656 elif enabled x86; then
3660 cpuflags="-march=$cpu"
3664 # targets that do NOT support nopl and conditional mov (cmov)
3665 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3666 cpuflags="-march=$cpu"
3669 # targets that do support nopl and conditional mov (cmov)
3670 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3671 cpuflags="-march=$cpu"
3675 # targets that do support conditional mov but on which it's slow
3676 pentium4|pentium4m|prescott|nocona)
3677 cpuflags="-march=$cpu"
3685 if [ "$cpu" != generic ]; then
3686 add_cflags $cpuflags
3687 add_asflags $cpuflags
3688 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3691 # compiler sanity check
3693 int main(void){ return 0; }
3695 if test "$?" != 0; then
3696 echo "$cc is unable to create an executable file."
3697 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3698 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3699 echo "Only do this if you know what cross compiling means."
3701 die "C compiler test failed."
3704 add_cppflags -D_ISOC99_SOURCE
3706 # some compilers silently accept -std=c11, so we also need to check that the
3707 # version macro is defined properly
3708 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3711 check_cflags -std=c99
3714 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3717 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3721 add_host_cppflags -D_ISOC99_SOURCE
3722 check_host_cflags -std=c99
3723 check_host_cflags -Wall
3724 check_host_cflags -O3
3730 check_code cc "" "int test[2*($expr) - 1]" &&
3731 subarch=$arch64 || subarch=$arch32
3739 check_64bit mips mips64 '_MIPS_SIM > 1'
3743 check_64bit parisc parisc64 'sizeof(void *) > 4'
3747 check_64bit ppc ppc64 'sizeof(void *) > 4'
3751 check_64bit s390 s390x 'sizeof(void *) > 4'
3755 check_64bit sparc sparc64 'sizeof(void *) > 4'
3759 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3760 if test "$subarch" = "x86_64"; then
3767 enabled spic && enable_weak pic
3773 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3774 enabled shared && add_ldflags -Wl,-brtl
3778 enable section_data_rel_ro
3779 SLIB_INSTALL_NAME='$(SLIBNAME)'
3781 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3784 prefix_default="/boot/common"
3785 network_extralibs="-lnetwork"
3789 SHFLAGS='-shared -Wl,-h,$$(@F)'
3790 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3791 network_extralibs="-lsocket -lnsl"
3792 # When using suncc to build, the Solaris linker will mark
3793 # an executable with each instruction set encountered by
3794 # the Solaris assembler. As our libraries contain their own
3795 # guards for processor-specific code, instead suppress
3796 # generation of the HWCAPS ELF section on Solaris x86 only.
3797 enabled_all suncc x86 &&
3798 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3799 add_ldflags -Wl,-M,mapfile
3800 nm_default='nm -P -g'
3802 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3806 oss_indev_extralibs="-lossaudio"
3807 oss_outdev_extralibs="-lossaudio"
3812 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3814 oss_indev_extralibs="-lossaudio"
3815 oss_outdev_extralibs="-lossaudio"
3823 add_extralibs -lpoll -lgnugetopt
3826 enabled ppc && add_asflags -force_cpusubtype_ALL
3827 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3828 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3829 add_ldflags -Wl,-dynamic,-search_paths_first
3831 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3832 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3834 enabled x86_64 && objformat="macho64"
3835 enabled_any pic shared ||
3836 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3837 check_header dispatch/dispatch.h &&
3838 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3841 die "Native MSYS builds are discouraged, please use the MINGW environment."
3844 if test $target_os = "mingw32ce"; then
3850 if enabled x86_64; then
3851 LIBTARGET="i386:x86-64"
3852 elif enabled arm; then
3855 check_ldflags -Wl,--nxcompat
3856 check_ldflags -Wl,--dynamicbase
3857 shlibdir_default="$bindir_default"
3860 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3861 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3862 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3863 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3865 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3866 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3867 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3869 dlltool="${cross_prefix}dlltool"
3875 if enabled shared; then
3876 # Link to the import library instead of the normal static library
3879 # Cannot build both shared and static libs with MSVC or icl.
3882 shlibdir_default="$bindir_default"
3885 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3886 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3887 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3888 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3890 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3891 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3892 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3899 shlibdir_default="$bindir_default"
3902 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3903 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3904 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3906 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3907 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3911 *-dos|freedos|opendos)
3912 network_extralibs="-lsocket"
3915 add_cppflags -U__STRICT_ANSI__
3919 enable section_data_rel_ro
3923 ranlib="echo ignoring ranlib"
3928 add_cppflags -D_GNU_SOURCE
3929 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3930 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3934 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3935 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3936 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3937 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3938 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3939 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3940 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3941 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3942 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3943 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3947 add_cppflags -D_BSD_SOURCE
3952 add_cppflags -D_QNX_SOURCE
3953 network_extralibs="-lsocket"
3958 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3959 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3960 add_ldflags -Wl,--target1-abs,--no-undefined \
3961 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3962 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3963 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3964 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3965 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3968 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3973 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3974 -D_REENTRANT_SOURCE \
3975 -D_RESEARCH_SOURCE \
3978 add_compat strtod.o strtod=avpriv_strtod
3979 network_extralibs='-lbsd'
3980 exeobjs=compat/plan9/main.o
3986 die "Unknown OS '$target_os'."
3990 # determine libc flavour
3995 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3996 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3997 eval ${pfx}libc_type=uclibc
3998 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3999 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4000 eval ${pfx}libc_type=glibc
4001 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4002 # MinGW headers can be installed on Cygwin, so check for newlib first.
4003 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4004 eval ${pfx}libc_type=newlib
4005 add_${pfx}cppflags -U__STRICT_ANSI__
4006 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4007 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4008 eval ${pfx}libc_type=mingw64
4009 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4010 eval test \$${pfx_no_}cc_type = "gcc" &&
4011 add_${pfx}cppflags -D__printf__=__gnu_printf__
4012 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4013 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4014 eval ${pfx}libc_type=mingw32
4015 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4016 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4017 die "ERROR: MinGW32 runtime version must be >= 3.15."
4018 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4019 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4020 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4021 eval test \$${pfx_no_}cc_type = "gcc" &&
4022 add_${pfx}cppflags -D__printf__=__gnu_printf__
4023 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4024 eval ${pfx}libc_type=msvcrt
4025 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4026 if [ "$pfx" = host_ ]; then
4027 add_host_cppflags -Dsnprintf=_snprintf
4029 add_compat strtod.o strtod=avpriv_strtod
4030 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4031 _snprintf=avpriv_snprintf \
4032 vsnprintf=avpriv_vsnprintf
4035 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4036 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4037 # 0x601 by default unless something else is set by the user.
4038 # This can easily lead to us detecting functions only present
4039 # in such new versions and producing binaries requiring windows 7.0.
4040 # Therefore explicitly set the default to XP unless the user has
4041 # set something else on the command line.
4042 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4043 # family. For these cases, configure is free to use any functions
4044 # found in the SDK headers by default. (Alternatively, we could force
4045 # _WIN32_WINNT to 0x0602 in that case.)
4046 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4047 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4048 #ifdef WINAPI_FAMILY
4049 #include <winapifamily.h>
4050 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4055 if [ "$pfx" = "" ]; then
4056 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4058 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4059 eval ${pfx}libc_type=klibc
4060 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4061 eval ${pfx}libc_type=bionic
4062 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4063 eval ${pfx}libc_type=solaris
4064 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4066 eval ${pfx}libc_type=default
4067 add_${pfx}cppflags -D_DEFAULT_SOURCE
4072 test -n "$libc_type" && enable libc_$libc_type
4074 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4078 add_compat strtod.o strtod=avpriv_strtod
4082 # hacks for compiler/libc/os combinations
4084 if enabled_all tms470 libc_glibc; then
4085 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4086 add_cppflags -D__USER_LABEL_PREFIX__=
4087 add_cppflags -D__builtin_memset=memset
4088 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4089 add_cflags -pds=48 # incompatible redefinition of macro
4092 if enabled_all ccc libc_glibc; then
4093 add_ldflags -Wl,-z,now # calls to libots crash without this
4096 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4097 add_cppflags '-I\$(SRC_PATH)/compat/float'
4100 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4103 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4105 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4107 set_default $PATHS_LIST
4110 # we need to build at least one lib type
4111 if ! enabled_any static shared; then
4113 At least one library type must be built.
4114 Specify --enable-static to build the static libraries or --enable-shared to
4115 build the shared libraries as well. To only build the shared libraries specify
4116 --disable-static in addition to --enable-shared.
4121 die_license_disabled() {
4122 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4125 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
4126 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
4127 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
4129 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4131 disabled optimizations || check_cflags -fomit-frame-pointer
4134 disabled pic && return
4137 case "$target_os" in
4147 enabled pic && enable_weak_pic
4149 check_cc <<EOF || die "Symbol mangling check failed."
4152 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4153 extern_prefix=${sym%%ff_extern*}
4155 check_cc <<EOF && enable_weak inline_asm
4156 void foo(void) { __asm__ volatile ("" ::); }
4160 for restrict_keyword in restrict __restrict__ __restrict; do
4161 check_cc <<EOF && _restrict=$restrict_keyword && break
4162 void foo(char * $restrict_keyword p);
4166 check_cc <<EOF && enable pragma_deprecated
4167 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4170 check_cc <<EOF && enable attribute_packed
4171 struct { int x; } __attribute__((packed)) x;
4174 check_cc <<EOF && enable attribute_may_alias
4175 union { int x; } __attribute__((may_alias)) x;
4178 check_cc <<EOF || die "endian test failed"
4179 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4181 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4184 log "check_gas using '$as' as AS"
4185 # :vararg is used on aarch64, arm and ppc altivec
4186 check_as <<EOF || return 1
4187 .macro m n, y:vararg=0
4192 # .altmacro is only used in arm asm
4193 ! enabled arm || check_as <<EOF || return 1
4200 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4202 enabled_any arm aarch64 && nogas=die
4203 enabled_all ppc altivec && nogas=warn
4207 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4208 gcc) gaspp_as_type=gas ;;
4209 *) gaspp_as_type=$as_type ;;
4212 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4214 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4215 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4217 if ! check_gas ; then
4220 $nogas "GNU assembler not found, install/update gas-preprocessor"
4223 check_as <<EOF && enable as_func
4229 check_inline_asm inline_asm_labels '"1:\n"'
4231 if enabled aarch64; then
4232 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4233 # internal assembler in clang 3.3 does not support this instruction
4234 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4235 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4237 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4239 elif enabled alpha; then
4243 elif enabled arm; then
4245 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4246 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4247 enabled thumb && check_cflags -mthumb || check_cflags -marm
4249 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4251 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4253 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4254 case "${cross_prefix:-$cc}" in
4255 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4256 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4257 __asm__ (".eabi_attribute 28, 1");
4258 int main(void) { return 0; }
4261 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4264 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4265 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4266 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4267 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4268 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4269 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4271 [ $target_os = linux ] || [ $target_os = android ] ||
4272 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4275 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4277 check_as <<EOF && enable as_dn_directive
4281 check_as <<EOF && enable as_fpu_directive
4285 # llvm's integrated assembler supports .object_arch from llvm 3.5
4286 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4290 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4292 elif enabled mips; then
4294 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4296 # make sure that only an instruction set is enabled
4297 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4299 if enabled mips64; then
4300 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4301 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4302 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4304 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4305 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4306 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4309 elif enabled parisc; then
4311 if enabled gcc; then
4312 case $($cc -dumpversion) in
4313 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4317 elif enabled ppc; then
4319 enable local_aligned_8 local_aligned_16 local_aligned_32
4321 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4322 check_inline_asm ibm_asm '"add 0, 0, 0"'
4323 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4324 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4326 # AltiVec flags: The FSF version of GCC differs from the Apple version
4327 if enabled altivec; then
4328 check_cflags -maltivec -mabi=altivec &&
4329 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4330 check_cflags -faltivec
4332 # check if our compiler supports Motorola AltiVec C API
4333 check_cc <<EOF || disable altivec
4336 vector signed int v1 = (vector signed int) { 0 };
4337 vector signed int v2 = (vector signed int) { 1 };
4338 v1 = vec_add(v1, v2);
4343 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4346 if enabled vsx; then
4347 check_cflags -mvsx &&
4348 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4351 if enabled power8; then
4352 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4355 elif enabled x86; then
4357 check_builtin rdtsc intrin.h "__rdtsc()"
4358 check_builtin mm_empty mmintrin.h "_mm_empty()"
4360 enable local_aligned_8 local_aligned_16 local_aligned_32
4362 # check whether EBP is available on x86
4363 # As 'i' is stored on the stack, this program will crash
4364 # if the base pointer is used to access it because the
4365 # base pointer is cleared in the inline assembly code.
4366 check_exec_crash <<EOF && enable ebp_available
4368 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4372 # check whether EBX is available on x86
4373 check_inline_asm ebx_available '""::"b"(0)' &&
4374 check_inline_asm ebx_available '"":::"%ebx"'
4376 # check whether xmm clobbers are supported
4377 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4379 # check whether binutils is new enough to compile SSSE3/MMXEXT
4380 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4381 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4383 if ! disabled_any asm mmx yasm; then
4384 if check_cmd $yasmexe --version; then
4385 enabled x86_64 && yasm_extra="-m amd64"
4386 yasm_debug="-g dwarf2"
4387 elif check_cmd nasm -v; then
4389 yasm_debug="-g -F dwarf"
4390 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4393 YASMFLAGS="-f $objformat $yasm_extra"
4394 enabled pic && append YASMFLAGS "-DPIC"
4395 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4396 case "$objformat" in
4397 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4400 check_yasm "movbe ecx, [5]" && enable yasm ||
4401 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4402 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4403 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4404 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4405 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4406 check_yasm "CPU amdnop" || disable cpunop
4410 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4417 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4419 check_ldflags -Wl,--as-needed
4421 if check_func dlopen; then
4423 elif check_func dlopen -ldl; then
4427 if ! disabled network; then
4428 check_func getaddrinfo $network_extralibs
4429 check_func inet_aton $network_extralibs
4431 check_type netdb.h "struct addrinfo"
4432 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4433 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4434 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4435 check_type poll.h "struct pollfd"
4436 check_type netinet/sctp.h "struct sctp_event_subscribe"
4437 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4438 check_type netinet/in.h "struct sockaddr_in6"
4439 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4440 check_type "sys/types.h sys/socket.h" socklen_t
4442 # Prefer arpa/inet.h over winsock2
4443 if check_header arpa/inet.h ; then
4444 check_func closesocket
4445 elif check_header winsock2.h ; then
4446 check_func_headers winsock2.h closesocket -lws2 &&
4447 network_extralibs="-lws2" ||
4448 { check_func_headers winsock2.h closesocket -lws2_32 &&
4449 network_extralibs="-lws2_32"; } || disable winsock2_h network
4450 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4452 check_type ws2tcpip.h socklen_t
4453 check_type ws2tcpip.h "struct addrinfo"
4454 check_type ws2tcpip.h "struct group_source_req"
4455 check_type ws2tcpip.h "struct ip_mreq_source"
4456 check_type ws2tcpip.h "struct ipv6_mreq"
4457 check_type winsock2.h "struct pollfd"
4458 check_struct winsock2.h "struct sockaddr" sa_len
4459 check_type ws2tcpip.h "struct sockaddr_in6"
4460 check_type ws2tcpip.h "struct sockaddr_storage"
4466 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4467 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4468 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4469 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4471 case "$custom_allocator" in
4473 # jemalloc by default does not use a prefix
4474 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4477 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4482 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4483 check_func ${malloc_prefix}memalign && enable memalign
4484 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4486 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4487 check_func_headers time.h clock_gettime ||
4488 { check_lib time.h clock_gettime -lrt && LIBRT="-lrt"; }
4492 check_func gethrtime
4494 check_func getrusage
4495 check_func gettimeofday
4498 check_func localtime_r
4499 check_func mach_absolute_time
4503 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4504 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4505 check_func sched_getaffinity
4506 check_func setrlimit
4507 check_func strerror_r
4512 check_func_headers io.h setmode
4513 check_func_headers stdlib.h getenv
4515 check_func_headers windows.h CoTaskMemFree -lole32
4516 check_func_headers windows.h GetProcessAffinityMask
4517 check_func_headers windows.h GetProcessTimes
4518 check_func_headers windows.h GetSystemTimeAsFileTime
4519 check_func_headers windows.h LoadLibrary
4520 check_func_headers windows.h MapViewOfFile
4521 check_func_headers windows.h SetConsoleTextAttribute
4522 check_func_headers windows.h Sleep
4523 check_func_headers windows.h VirtualAlloc
4524 check_struct windows.h "CONDITION_VARIABLE" Ptr
4526 check_header direct.h
4527 check_header dlfcn.h
4528 check_header d3d11.h
4530 check_header dxva2api.h
4532 check_header mach/mach_time.h
4533 check_header malloc.h
4535 check_header sys/mman.h
4536 check_header sys/param.h
4537 check_header sys/resource.h
4538 check_header sys/select.h
4539 check_header sys/time.h
4540 check_header sys/un.h
4541 check_header unistd.h
4542 check_header valgrind/valgrind.h
4543 check_header vdpau/vdpau.h
4544 check_header vdpau/vdpau_x11.h
4545 check_header VideoDecodeAcceleration/VDADecoder.h
4546 check_header windows.h
4547 check_header X11/extensions/XvMClib.h
4549 # it seems there are versions of clang in some distros that try to use the
4550 # gcc headers, which explodes for stdatomic
4551 # so we also check that atomics actually work here
4552 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4554 check_lib "windows.h shellapi.h" CommandLineToArgvW -lshell32
4555 check_lib "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4556 check_lib "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4558 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4560 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4561 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4562 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4564 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4565 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4566 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4567 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4568 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4570 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4572 if ! disabled w32threads && ! enabled pthreads; then
4573 check_func_headers "windows.h process.h" _beginthreadex &&
4574 enable w32threads || disable w32threads
4577 # check for some common methods of building with pthread support
4578 # do this before the optional library checks as some of them require pthreads
4579 if ! disabled pthreads && ! enabled w32threads; then
4581 if check_func pthread_join -pthread; then
4583 add_extralibs -pthread
4584 elif check_func pthread_join -pthreads; then
4585 add_cflags -pthreads
4586 add_extralibs -pthreads
4587 elif check_func pthread_join -lpthreadGC2; then
4588 add_extralibs -lpthreadGC2
4589 elif check_lib pthread.h pthread_join -lpthread; then
4591 elif ! check_func pthread_join; then
4597 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
4599 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4600 disabled bzlib || check_lib bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4602 check_lib math.h sin -lm && LIBM="-lm"
4608 for func in $MATH_FUNCS; do
4609 eval check_mathfunc $func \${${func}_args:-1}
4612 # these are off by default, so fail if requested and not available
4613 enabled avisynth && { check_lib "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4614 check_lib "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4615 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4616 enabled cuda && check_lib cuda.h cuInit -lcuda
4617 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4618 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4619 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4620 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4621 enabled libfaac && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4622 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4623 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4624 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4625 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4626 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4627 done || die "ERROR: libgsm not found"; }
4628 enabled libhdcd && require_pkg_config libhdcd "hdcd/hdcd_simple.h" hdcd_new
4629 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4630 enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4631 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4632 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4633 enabled libnpp && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4634 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4635 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4636 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4637 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4638 enabled libopenjpeg && { check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4639 require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4640 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4641 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4642 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4643 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4644 enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4645 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4646 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4647 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4648 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4649 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4650 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4651 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4652 enabled libvpx_vp8_decoder && {
4653 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4654 disable libvpx_vp8_decoder;
4656 enabled libvpx_vp8_encoder && {
4657 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4658 disable libvpx_vp8_encoder;
4660 enabled libvpx_vp9_decoder && {
4661 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4662 disable libvpx_vp9_decoder;
4664 enabled libvpx_vp9_encoder && {
4665 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4666 disable libvpx_vp9_encoder;
4668 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4669 die "libvpx enabled but no supported decoders found"
4672 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4673 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4674 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4675 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4676 die "ERROR: libx264 version must be >= 0.118."; } &&
4677 { check_cpp_condition x264.h "X264_MPEG2" &&
4679 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4680 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4681 die "ERROR: libx265 version must be >= 57."; }
4682 enabled libxavs && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
4683 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4684 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4685 { ! enabled cross_compile && {
4686 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4687 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4688 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4689 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4690 die "ERROR: mmal not found"; }
4691 enabled mmal && check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"
4692 enabled omx_rpi && enable omx
4693 enabled omx && { check_header OMX_Core.h ||
4694 { ! enabled cross_compile && enabled omx_rpi && {
4695 add_cflags -isystem/opt/vc/include/IL ; }
4696 check_header OMX_Core.h ; } ||
4697 die "ERROR: OpenMAX IL headers not found"; }
4698 enabled openssl && { { check_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||
4699 check_pkg_config openssl openssl/ssl.h SSL_library_init; } && {
4700 add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
4701 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4702 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4703 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4704 die "ERROR: openssl not found"; }
4706 if enabled gnutls; then
4707 { check_lib gmp.h mpz_export -lgmp && enable gmp; } ||
4708 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4712 if enabled libdc1394; then
4713 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4714 enable libdc1394_2; } ||
4715 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4716 enable libdc1394_1; } ||
4717 die "ERROR: No version of libdc1394 found "
4720 if enabled nvenc; then
4721 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."
4722 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||
4723 die "ERROR: NVENC API version 5 or older is not supported"
4726 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4727 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4728 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4732 ! disabled pod2man && check_cmd pod2man --help && enable pod2man || disable pod2man
4733 ! disabled texi2html && check_cmd texi2html -version && enable texi2html || disable texi2html
4735 check_header linux/fb.h
4736 check_header linux/videodev2.h
4737 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4739 check_header AVFoundation/AVFoundation.h &&
4740 check_objcflags -fobjc-arc &&
4741 add_extralibs -framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia ||
4742 disable AVFoundation_AVFoundation_h
4744 check_header sys/videoio.h
4746 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4747 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4748 # w32api 3.12 had it defined wrong
4749 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4751 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4752 { check_header dev/bktr/ioctl_meteor.h &&
4753 check_header dev/bktr/ioctl_bt848.h; } ||
4754 { check_header machine/ioctl_meteor.h &&
4755 check_header machine/ioctl_bt848.h; } ||
4756 { check_header dev/video/meteor/ioctl_meteor.h &&
4757 check_header dev/video/bktr/ioctl_bt848.h; } ||
4758 check_header dev/ic/bt8xx.h
4760 check_header sndio.h
4761 check_header sys/soundcard.h
4762 check_header soundcard.h
4764 enabled_any alsa_indev alsa_outdev &&
4765 check_lib alsa/asoundlib.h snd_pcm_htimestamp -lasound
4767 enabled jack_indev && check_lib jack/jack.h jack_client_open -ljack &&
4768 check_func jack_port_get_latency_range -ljack
4770 enabled_any sndio_indev sndio_outdev && check_lib sndio.h sio_open -lsndio
4772 if enabled libcdio; then
4773 check_lib "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4774 check_lib "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4775 die "ERROR: No usable libcdio/cdparanoia found"
4778 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4780 if enabled libxcb; then
4781 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4782 enabled libxcb && die "ERROR: libxcb not found";
4785 disabled libxcb_shm ||
4786 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4787 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4788 } && check_header sys/shm.h && enable libxcb_shm
4790 disabled libxcb_xfixes ||
4791 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4792 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4793 } && enable libxcb_xfixes
4795 add_cflags "$xcb_shape_cflags $xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4796 add_extralibs "$xcb_shape_libs $xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4799 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4802 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4805 if enabled vaapi ; then
4807 check_lib "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4810 check_lib "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
4815 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4818 enabled vdpau && enabled xlib &&
4819 check_lib "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4822 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4824 # add some useful compiler flags if supported
4825 check_cflags -Wdeclaration-after-statement
4827 check_cflags -Wdisabled-optimization
4828 check_cflags -Wpointer-arith
4829 check_cflags -Wredundant-decls
4830 check_cflags -Wwrite-strings
4831 check_cflags -Wtype-limits
4832 check_cflags -Wundef
4833 check_cflags -Wmissing-prototypes
4834 check_cflags -Wstrict-prototypes
4835 enabled extra_warnings && check_cflags -Winline
4836 enabled extra_warnings && check_cflags -Wcast-qual
4838 check_disable_warning(){
4839 warning_flag=-W${1#-Wno-}
4840 test_cflags $warning_flag && add_cflags $1
4843 check_disable_warning -Wno-parentheses
4844 check_disable_warning -Wno-switch
4845 check_disable_warning -Wno-format-zero-length
4846 check_disable_warning -Wno-pointer-sign
4848 # add some linker flags
4849 check_ldflags -Wl,--warn-common
4850 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4851 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4852 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4854 # add some strip flags
4855 # -wN '..@*' is more selective than -x, but not available everywhere.
4856 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4858 enabled neon_clobber_test &&
4859 check_ldflags -Wl,--wrap,avcodec_open2 \
4860 -Wl,--wrap,avcodec_decode_audio4 \
4861 -Wl,--wrap,avcodec_decode_video2 \
4862 -Wl,--wrap,avcodec_decode_subtitle2 \
4863 -Wl,--wrap,avcodec_encode_audio2 \
4864 -Wl,--wrap,avcodec_encode_video2 \
4865 -Wl,--wrap,avcodec_encode_subtitle \
4866 -Wl,--wrap,avcodec_send_packet \
4867 -Wl,--wrap,avcodec_receive_packet \
4868 -Wl,--wrap,avcodec_send_frame \
4869 -Wl,--wrap,avcodec_receive_frame \
4870 -Wl,--wrap,avresample_convert ||
4871 disable neon_clobber_test
4873 enabled xmm_clobber_test &&
4874 check_ldflags -Wl,--wrap,avcodec_open2 \
4875 -Wl,--wrap,avcodec_decode_audio4 \
4876 -Wl,--wrap,avcodec_decode_video2 \
4877 -Wl,--wrap,avcodec_decode_subtitle2 \
4878 -Wl,--wrap,avcodec_encode_audio2 \
4879 -Wl,--wrap,avcodec_encode_video2 \
4880 -Wl,--wrap,avcodec_encode_subtitle \
4881 -Wl,--wrap,avcodec_send_packet \
4882 -Wl,--wrap,avcodec_receive_packet \
4883 -Wl,--wrap,avcodec_send_frame \
4884 -Wl,--wrap,avcodec_receive_frame \
4885 -Wl,--wrap,avresample_convert \
4886 -Wl,--wrap,sws_scale ||
4887 disable xmm_clobber_test
4889 check_ld <<EOF && enable proper_dce
4890 extern const int array[512];
4891 static inline int func(void) { return array[0]; }
4892 int main(void) { return 0; }
4895 if enabled proper_dce; then
4896 echo "X { local: *; };" > $TMPV
4897 if test_ldflags -Wl,${version_script},$TMPV; then
4898 append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
4899 check_cc <<EOF && enable symver_asm_label
4900 void ff_foo(void) __asm__ ("av_foo@VERSION");
4901 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4903 check_cc <<EOF && enable symver_gnu_asm
4904 __asm__(".symver ff_foo,av_foo@VERSION");
4905 void ff_foo(void) {}
4910 if [ -z "$optflags" ]; then
4911 if enabled small; then
4912 optflags=$cflags_size
4913 elif enabled optimizations; then
4914 optflags=$cflags_speed
4916 optflags=$cflags_noopt
4922 enabled lto && check_ldflags "$@"
4926 if enabled lto; then
4927 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4929 check_ldflags -flto $cpuflags
4932 check_optflags $optflags
4933 check_optflags -fno-math-errno
4934 check_optflags -fno-signed-zeros
4936 if enabled icc; then
4937 # Just warnings, no remarks
4939 # -wd: Disable following warnings
4940 # 144, 167, 556: -Wno-pointer-sign
4941 # 1292: attribute "foo" ignored
4942 # 1419: external declaration in primary source file
4943 # 10006: ignoring unknown option -fno-signed-zeros
4944 # 10148: ignoring unknown option -Wno-parentheses
4945 # 10156: ignoring option '-W'; no argument required
4946 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4947 # 11030: Warning unknown option --as-needed
4948 # 10156: ignoring option '-export'; no argument required
4949 check_ldflags -wd10156,11030
4950 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4951 enable ebp_available
4952 if enabled x86_32; then
4953 icc_version=$($cc -dumpversion)
4954 test ${icc_version%%.*} -ge 11 &&
4955 check_cflags -falign-stack=maintain-16-byte ||
4956 disable aligned_stack
4958 elif enabled ccc; then
4959 # disable some annoying warnings
4960 add_cflags -msg_disable bitnotint
4961 add_cflags -msg_disable mixfuncvoid
4962 add_cflags -msg_disable nonstandcast
4963 add_cflags -msg_disable unsupieee
4964 elif enabled gcc; then
4965 check_optflags -fno-tree-vectorize
4966 check_cflags -Werror=implicit-function-declaration
4967 check_cflags -Werror=missing-prototypes
4968 check_cflags -Werror=return-type
4969 check_cflags -Werror=declaration-after-statement
4970 check_cflags -Werror=vla
4971 check_cflags -Werror=format-security
4972 check_cflags -fdiagnostics-color=auto
4973 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4974 elif enabled llvm_gcc; then
4975 check_cflags -mllvm -stack-alignment=16
4976 elif enabled clang; then
4977 check_cflags -mllvm -stack-alignment=16
4978 check_cflags -Qunused-arguments
4979 check_cflags -Werror=implicit-function-declaration
4980 check_cflags -Werror=missing-prototypes
4981 check_cflags -Werror=return-type
4982 elif enabled cparser; then
4983 add_cflags -Wno-missing-variable-declarations
4984 add_cflags -Wno-empty-statement
4985 elif enabled armcc; then
4986 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4987 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4988 # 2523: use of inline assembly is deprecated
4989 add_cflags -W${armcc_opt},--diag_suppress=2523
4990 add_cflags -W${armcc_opt},--diag_suppress=1207
4991 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4992 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4993 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4994 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4995 elif enabled tms470; then
4996 add_cflags -pds=824 -pds=837
4998 elif enabled pathscale; then
4999 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5000 elif enabled_any msvc icl; then
5001 enabled x86_32 && disable aligned_stack
5002 enabled_all x86_32 debug && add_cflags -Oy-
5003 enabled debug && add_ldflags -debug
5004 enable pragma_deprecated
5005 if enabled icl; then
5006 # -Qansi-alias is basically -fstrict-aliasing, but does not work
5007 # (correctly) on icl 13.x.
5008 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5009 add_cflags -Qansi-alias
5010 # icl will pass the inline asm tests but inline asm is currently
5011 # not supported (build will fail)
5014 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5015 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5016 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
5017 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
5018 # (as it ends up if the restrict redefine is done before including stdlib.h), while
5019 # MSVC 2013 and newer can handle it fine.
5020 # If this declspec fails, force including stdlib.h before the restrict redefinition
5021 # happens in config.h.
5022 if [ $_restrict != restrict ]; then
5023 check_cc <<EOF || add_cflags -FIstdlib.h
5024 __declspec($_restrict) void* foo(int);
5029 for pfx in "" host_; do
5030 varname=${pfx%_}cc_type
5031 eval "type=\$$varname"
5032 if [ $type = "msvc" ]; then
5033 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5034 static inline int foo(int a) { return a; }
5041 add_asflags -Qunused-arguments
5047 check_ldflags -Qunused-arguments
5053 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5056 add_cppflags -Dmain=plan9_main
5060 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5062 check_deps $CONFIG_LIST \
5067 enabled_all dxva2 CoTaskMemFree &&
5068 prepend avconv_libs $($ldflags_filter "-lole32") &&
5071 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5073 for thread in $THREADS_LIST; do
5074 if enabled $thread; then
5075 test -n "$thread_type" &&
5076 die "ERROR: Only one thread type must be selected." ||
5077 thread_type="$thread"
5081 if disabled stdatomic_h; then
5082 if enabled atomics_gcc; then
5083 add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
5084 elif enabled atomics_win32; then
5085 add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
5086 elif enabled atomics_suncc; then
5087 add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
5088 elif enabled pthreads; then
5089 add_compat atomics/pthread/stdatomic.o
5090 add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
5092 enabled threads && die "Threading is enabled, but no atomics are available"
5093 add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
5097 enabled zlib && add_cppflags -DZLIB_CONST
5099 # conditional library dependencies, in linking order
5100 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
5101 enabled resample_filter && prepend avfilter_deps "avresample"
5102 enabled scale_filter && prepend avfilter_deps "swscale"
5104 enabled opus_decoder && prepend avcodec_deps "avresample"
5108 eval "deps=\$$lib_deps"
5109 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5113 map 'expand_deps $v' $LIBRARY_LIST
5115 echo "install prefix $prefix"
5116 echo "source path $source_path"
5117 echo "C compiler $cc"
5118 echo "C library $libc_type"
5119 if test "$host_cc" != "$cc"; then
5120 echo "host C compiler $host_cc"
5121 echo "host C library $host_libc_type"
5123 echo "ARCH $arch ($cpu)"
5124 if test "$build_suffix" != ""; then
5125 echo "build suffix $build_suffix"
5127 if test "$extra_version" != ""; then
5128 echo "version string suffix $extra_version"
5130 echo "big-endian ${bigendian-no}"
5131 echo "runtime cpu detection ${runtime_cpudetect-no}"
5132 if enabled x86; then
5133 echo "${yasmexe} ${yasm-no}"
5134 echo "MMX enabled ${mmx-no}"
5135 echo "MMXEXT enabled ${mmxext-no}"
5136 echo "3DNow! enabled ${amd3dnow-no}"
5137 echo "3DNow! extended enabled ${amd3dnowext-no}"
5138 echo "SSE enabled ${sse-no}"
5139 echo "SSSE3 enabled ${ssse3-no}"
5140 echo "AVX enabled ${avx-no}"
5141 echo "XOP enabled ${xop-no}"
5142 echo "FMA3 enabled ${fma3-no}"
5143 echo "FMA4 enabled ${fma4-no}"
5144 echo "i686 features enabled ${i686-no}"
5145 echo "CMOV is fast ${fast_cmov-no}"
5146 echo "EBX available ${ebx_available-no}"
5147 echo "EBP available ${ebp_available-no}"
5149 if enabled aarch64; then
5150 echo "NEON enabled ${neon-no}"
5151 echo "VFP enabled ${vfp-no}"
5153 if enabled arm; then
5154 echo "ARMv5TE enabled ${armv5te-no}"
5155 echo "ARMv6 enabled ${armv6-no}"
5156 echo "ARMv6T2 enabled ${armv6t2-no}"
5157 echo "VFP enabled ${vfp-no}"
5158 echo "NEON enabled ${neon-no}"
5160 if enabled ppc; then
5161 echo "AltiVec enabled ${altivec-no}"
5162 echo "VSX enabled ${vsx-no}"
5163 echo "POWER8 enabled ${power8-no}"
5164 echo "PPC 4xx optimizations ${ppc4xx-no}"
5165 echo "dcbzl available ${dcbzl-no}"
5167 echo "debug symbols ${debug-no}"
5168 echo "optimize for size ${small-no}"
5169 echo "optimizations ${optimizations-no}"
5170 echo "static ${static-no}"
5171 echo "shared ${shared-no}"
5172 echo "new filter support ${avfilter-no}"
5173 echo "network support ${network-no}"
5174 echo "threading support ${thread_type-no}"
5175 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5176 echo "SDL support ${sdl-no}"
5177 test -n "$random_seed" &&
5178 echo "random seed ${random_seed}"
5181 echo "External libraries:"
5182 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5184 echo "External libraries providing hardware acceleration:"
5185 print_enabled '' $HWACCEL_LIBRARY_LIST | print_3_columns
5189 print_enabled '' $LIBRARY_LIST | print_3_columns
5192 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5193 echo "Enabled ${type}s:"
5194 eval list=\$$(toupper $type)_LIST
5195 print_enabled '_*' $list | print_3_columns
5199 license="LGPL version 2.1 or later"
5200 if enabled nonfree; then
5201 license="nonfree and unredistributable"
5202 elif enabled gplv3; then
5203 license="GPL version 3 or later"
5204 elif enabled lgplv3; then
5205 license="LGPL version 3 or later"
5206 elif enabled gpl; then
5207 license="GPL version 2 or later"
5210 echo "License: $license"
5212 echo "Creating config.mak and config.h..."
5214 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5216 config_files="$TMPH config.mak"
5218 cat > config.mak <<EOF
5219 # Automatically generated by configure - do not modify!
5220 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5222 LIBDIR=\$(DESTDIR)$libdir
5223 SHLIBDIR=\$(DESTDIR)$shlibdir
5224 INCDIR=\$(DESTDIR)$incdir
5225 BINDIR=\$(DESTDIR)$bindir
5226 DATADIR=\$(DESTDIR)$datadir
5227 DOCDIR=\$(DESTDIR)$docdir
5228 MANDIR=\$(DESTDIR)$mandir
5229 SRC_PATH=$source_path
5232 INTRINSICS=$intrinsics
5239 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5241 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5252 OBJCFLAGS=$OBJCFLAGS
5267 LDEXEFLAGS=$LDEXEFLAGS
5268 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5269 STRIPFLAGS=$STRIPFLAGS
5270 YASMFLAGS=$YASMFLAGS
5271 BUILDSUF=$build_suffix
5279 EXTRA_VERSION=$extra_version
5281 CCDEP_FLAGS=$CCDEP_FLAGS
5283 ASDEP_FLAGS=$ASDEP_FLAGS
5284 CC_DEPFLAGS=$CC_DEPFLAGS
5285 AS_DEPFLAGS=$AS_DEPFLAGS
5288 HOSTCFLAGS=$host_cflags
5289 HOSTCPPFLAGS=$host_cppflags
5290 HOSTEXESUF=$HOSTEXESUF
5291 HOSTLDFLAGS=$host_ldflags
5294 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5295 HOSTCCDEP=$HOSTCCDEP
5296 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5297 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5301 TARGET_EXEC=$target_exec $target_exec_args
5302 TARGET_PATH=$target_path
5303 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5304 CFLAGS-avplay=$sdl_cflags
5305 ZLIB=$($ldflags_filter -lz)
5306 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5307 EXTRALIBS=$extralibs
5308 COMPAT_OBJS=$compat_objs
5311 LIBTARGET=${LIBTARGET}
5312 SLIBNAME=${SLIBNAME}
5313 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5314 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5315 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5316 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5317 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5318 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5319 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5320 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5321 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
5322 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5327 name=$(toupper $lcname)
5328 file=$source_path/$lcname/version.h
5329 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5330 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5331 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5332 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5333 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5336 map 'get_version $v' $LIBRARY_LIST
5338 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5340 print_program_libs(){
5341 eval "program_libs=\$${1}_libs"
5342 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5345 map 'print_program_libs $v' $PROGRAM_LIST
5348 /* Automatically generated by configure - do not modify! */
5349 #ifndef LIBAV_CONFIG_H
5350 #define LIBAV_CONFIG_H
5351 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5352 #define LIBAV_LICENSE "$(c_escape $license)"
5353 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5354 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5355 #define restrict $_restrict
5356 #define EXTERN_PREFIX "${extern_prefix}"
5357 #define EXTERN_ASM ${extern_prefix}
5358 #define SLIBSUF "$SLIBSUF"
5361 test -n "$malloc_prefix" &&
5362 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5364 if enabled yasm; then
5365 append config_files $TMPASM
5369 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5371 print_config ARCH_ "$config_files" $ARCH_LIST
5372 print_config HAVE_ "$config_files" $HAVE_LIST
5373 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5377 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5379 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5380 cp_if_changed $TMPH config.h
5383 enabled yasm && cp_if_changed $TMPASM config.asm
5386 /* Generated by ffconf */
5387 #ifndef AVUTIL_AVCONFIG_H
5388 #define AVUTIL_AVCONFIG_H
5391 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5393 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5395 cp_if_changed $TMPH libavutil/avconfig.h
5397 # generate the lists of enabled components
5398 print_enabled_components(){
5403 echo "static const $struct_name *$name[] = {" > $TMPH
5405 enabled $c && printf " &ff_%s,\n" $c >> $TMPH
5407 echo " NULL };" >> $TMPH
5408 cp_if_changed $TMPH $file
5411 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
5412 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
5414 test -n "$WARNINGS" && printf "\n$WARNINGS"
5416 # build pkg-config files
5419 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5422 pkgconfig_generate(){
5424 shortname=${name#lib}${build_suffix}
5428 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5429 requires=${requires%, }
5430 enabled ${name#lib} || return 0
5432 cat <<EOF > $name/$name.pc
5434 exec_prefix=\${prefix}
5439 Description: $comment
5441 Requires: $(enabled shared || echo $requires)
5442 Requires.private: $(enabled shared && echo $requires)
5444 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5445 Libs.private: $(enabled shared && echo $libs)
5446 Cflags: -I\${includedir}
5448 cat <<EOF > $name/$name-uninstalled.pc
5451 libdir=\${pcfiledir}
5452 includedir=${source_path}
5455 Description: $comment
5459 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5460 Cflags: -I\${includedir}
5464 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5465 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5466 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5467 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5468 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5469 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5470 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"