rm *-ss-* ;
for i in $(seq 0 100) ; do
    echo "seek $(echo "${i}0 * 0.5" | bc) type=0" | mplayer -slave -osdlevel 0 -framedrop -vo x11 -sws 2 -vf pp,hqdn3d,rectangle=194:145:12:40 -xy 640 -zoom bb.wmv &> /dev/null &
    sleep 2 ;
    echo "grabbing bb3-ss-${i}.png..." > /dev/pts/16 ;
    import -window MPlayer -crop 388x290+24+80 -quality 0 bb3-ss-${i}.png ;
    killall mplayer ;
    sleep 1 ;
done