Software Design Of Mobile Telephone Streaming Media Real-time Image Browsing Client Based On Mobile

The development of Embedded System, the maturity of streaming media technology and the progress of network technology, especially the in-coming of 3G times, bring new opportunities of streaming media application to embedded terminals.Windows Mobile, an Embedded Real-Time OS provided by Microsoft Corporation, which has strong network supports and the abilities of media processing, is an appropriate OS platform for embedded streaming media application. Streaming media is a kind of multimedia applied streaming technology which is transmited in internet. It is adopted in internet by streaming transmission mode. It will develop farther with special advantages of data transmission in 3G networks.This paper has designed a wireless streaming media transmission system in the smart phone. The thesis researches the streaming media based on Windows Mobile. At first, there's an introduction of streaming media and decoding and encoding. Then It's introduction that the smart phone platform, interface and wireless streaming media framework are realized in smart phones. Real-time streaming mode in this system is used to transmit data from the video server to the client. The user can be transmitting and playing simultaneously. So it has a high real-time video transmission. Moreover, the system adopts forward an end-to-end feedback congestion control strategy based on RTP protocol, which solves wireless network transmission at high error rate and the time-varying bandwidth issues. DirectShow technology is used to display and control image in mobile client. A phone player of streaming media system based on Windows Mobile is realized by the simulation of the software. The client is optimized by this system, using of double buffering, which overcomes the shortcomings of the smart phones such as low processing speed, the limited capacity of the buffer and etc. It achieves real-time streaming media transmission. With this system, users can receive streaming media at any moment in any place through a wireless network.The tests are showed that the platform has been running smoothly and its configuration is flexible. The player of mobile client has the character of versatility and portability, which can be extended to more occasions and be applied in more areas.