Video fix: seek during pause would sometimes cause movie times < 0.
Video fix: seek during pause would sometimes cause movie times < 0.

svn path=/trunk/libavg/; revision=4775

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