Fixed loop bug for async videos.
Fixed loop bug for async videos.

svn path=/trunk/libavg/; revision=2143

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