#
#
# This script grabs a frame of video, then uses various pbm filters to
-# munge the image in random nefarious ways, then uses xli or xv to put it
-# on the root window. This works out really nicely if you just feed some
-# random TV station into it...
+# munge the image in random nefarious ways, then uses xloadimage, xli, or xv
+# to put it on the root window. This works out really nicely if you just
+# feed some random TV station into it...
#
# The video grabbing part is SGI-specific -- if you want to use this on
# another system, add a new clause to the grab() procedure.
tmp_ppmS=$tmp-S.ppm
-# Figure out whether to use xli or xv.
+# Figure out whether to use xloadimage, xli, or xv.
pick_displayer() {
- IFS=:
- for p in $PATH; do
- if [ "$p" = "" ]; then p=. ; fi
- if [ -x $p/xli ]; then
- displayer=$p/xli
- displayer_args="-quiet"
- displayer_win_args=""
- displayer_root_args="-onroot -center -border black"
- return
- elif [ -x $p/xv ]; then
- displayer=$p/xv
- displayer_args="-quick24"
- displayer_win_args="-geom +0+0"
- displayer_root_args="-root -rmode 5 -noresetroot -rfg black -rbg black -viewonly"
-
- return
- fi
+ displayer=
+ for prog in xloadimage xli xv ; do
+ IFS=:
+ for p in $PATH; do
+ IFS=
+ if [ "$p" = "" ]; then p=. ; fi
+ if [ -x $p/$prog ]; then
+ displayer=$prog
+ break 2
+ fi
+ done
done
- IFS=
- echo "$0: neither xli nor xv found on \$PATH"
- exit -1
+ if [ "$displayer" = "xloadimage" ]; then
+ displayer_args="-quiet"
+ displayer_win_args=""
+ displayer_root_args="-onroot"
+ elif [ "$displayer" = "xli" ]; then
+ displayer_args="-quiet"
+ displayer_win_args=""
+ displayer_root_args="-onroot -center -border black"
+ elif [ "$displayer" = "xv" ]; then
+ displayer_args="-quick24"
+ displayer_win_args="-geom +0+0"
+ displayer_root_args="-root -rmode 5 -noresetroot -rfg black -rbg black -viewonly"
+ else
+ echo "$0: neither xli nor xv found on \$PATH"
+ exit -1
+ fi
}
# Process command-line args
# streamer -o $tmp_ppm1
#
+ # James Isaacs says this works for the ATI video capture card:
+ #
+ # atitv snap $tmp_ppm1
+ #
+
else
echo "$0: don't know how to grab video on this OS." >&2
clean2