MPEG4的多媒体在网络传输中，为了提高网络的可靠性（QoS）等，需要传输的MPEG按照传输的内容分类，本为给出一种有效的分类方式-MPEG4 multimedia in network traffic, in order to improve network reliability (QoS) and so on, need to transfer in accordance with the MPEG transport the contents of the classification,