Moved video pixel decision making into the decoder in preparation for multithreaded video.
Moved video pixel decision making into the decoder in preparation for multithreaded video.

svn path=/trunk/libavg/; revision=1926

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