because now h264/5 frame data include the start code, no need to prepend start code for mp2p stream. Further we can remove the cached mechanism for h264/5
because now h264/5 frame data include the start code, no need to prepend start code for mp2p stream. Further we can remove the cached mechanism for h264/5

OpenSight/StreamSwitch,OpenSight/StreamSwitch,OpenSight/StreamSwitch,OpenSight/StreamSwitch