Fixed video mask test image.
Fixed video mask test image.

svn path=/trunk/libavg/; revision=3987

scotty007/libavg,scotty007/libavg,hoodie/libavg,th3infinity/libavg,libavg/libavg,libavg/libavg,th3infinity/libavg,yyd01245/libavg,hoodie/libavg,libavg/libavg,th3infinity/libavg,th3infinity/libavg,scotty007/libavg,yyd01245/libavg,scotty007/libavg,hoodie/libavg,yyd01245/libavg,yyd01245/libavg,libavg/libavg,hoodie/libavg