The design of the user interface in the MMS editor module,the architecture and function of each MMS PDU,the interface and method of playing media and so on.

• 在MMS PDU模块中；给出了PDU的结构；封装以及各种PDU所实现的功能; 在媒体模块中；给出了实现的接口；以及媒体的显示；并且详细阐述了音频视频的集成和封装；特别是对MPEG-4和H.