[FFmpeg-cvslog] configure: add --enable/disable-random option
Mans Rullgard
git at videolan.org
Thu Aug 9 01:02:20 CEST 2012
ffmpeg | branch: master | Mans Rullgard <mans at mansr.com> | Wed May 9 04:29:53 2012 +0100| [154caa677c0ea62f82b7787b528304c150c6b928] | committer: Mans Rullgard
configure: add --enable/disable-random option
This allows creating random configurations which is useful for
testing purposes.
Signed-off-by: Mans Rullgard <mans at mansr.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=154caa677c0ea62f82b7787b528304c150c6b928
---
configure | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/configure b/configure
index da4036e..9bdeebd 100755
--- a/configure
+++ b/configure
@@ -266,6 +266,14 @@ Developer options (useful when working on Libav itself):
\$LIBAV_SAMPLES at make invocation time.
--enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
should be used only for debugging purposes)
+ --enable-random randomly enable/disable components
+ --disable-random
+ --enable-random=LIST randomly enable/disable specific components or
+ --disable-random=LIST component groups. LIST is a comma-separated list
+ of NAME[:PROB] entries where NAME is a component
+ (group) and PROB the probability associated with
+ NAME (default 0.5).
+ --random-seed=VALUE seed value for --enable/disable-random
NOTE: Object files are built at the place where configure is launched.
EOF
@@ -1270,6 +1278,7 @@ CMDLINE_SET="
nm
optflags
pkg_config
+ random_seed
samples
sysinclude
sysroot
@@ -1846,6 +1855,27 @@ show_list() {
exit 0
}
+rand_list(){
+ IFS=', '
+ set -- $*
+ unset IFS
+ for thing; do
+ comp=${thing%:*}
+ prob=${thing#$comp}
+ prob=${prob#:}
+ is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
+ echo "prob ${prob:-0.5}"
+ printf '%s\n' $comp
+ done
+}
+
+do_random(){
+ action=$1
+ shift
+ random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
+ $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
+}
+
for opt do
optval="${opt#*=}"
case "$opt" in
@@ -1860,6 +1890,14 @@ for opt do
--disable-everything)
map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
;;
+ --enable-random|--disable-random)
+ action=${opt%%-random}
+ do_random ${action#--} $COMPONENT_LIST
+ ;;
+ --enable-random=*|--disable-random=*)
+ action=${opt%%-random=*}
+ do_random ${action#--} $optval
+ ;;
--enable-*=*|--disable-*=*)
eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
@@ -3390,6 +3428,8 @@ echo "libxvid enabled ${libxvid-no}"
echo "openssl enabled ${openssl-no}"
echo "zlib enabled ${zlib-no}"
echo "bzlib enabled ${bzlib-no}"
+test -n "$random_seed" &&
+ echo "random seed ${random_seed}"
echo
for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
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