Mobile Streaming Media Systems, And Implementation

With the rapid development of mobile communication, people not only need communication with texts, voices, images , but also need multimedia information services those can be provided anywhere anytime. Mobile multimedia services are thought as important services in 3G communication age. Wireless multimedia services, especially 3G mobile multimedia services have been widely applied in Korea, Japanese, and some countries in Europe. 3G services are also going to be further applied in our country.Mobile streaming media is a streaming media technology that been used on wireless network and mobile terminal. It provides streaming media services for mobile phones through 2.5G or 3G communication networks. It is the result of combination of wireless telecommunications and multimedia telecommunications.Mobile streaming media system is a complex system. A representative mobile streaming media system consists of codec, streaming media data, streaming media server, transport network, streaming media player etc.. Codec is the key technological part.In this paper, firstly MPEG-4 and H.264 as the most popular standards used on mobile media are analyzed, then streaming media transport protocols such as RTP RTCP are introduced. Then, the architecture of mobile streaming media system is provided, followed with the protocol encapsulation technology of media, client implementation technology. At last, a media service system based on BREW platform is provided. The implementation of client part is the emphasis.