Design And Simulation H.264 Video Player Based On Symbian Smartphones

Mobile phone has become indispensable electronic products in people's lives. The functions of mobile phones are expanding.Nowadays the smart phones have integration of many functions like information communication,business management, entertainment and so on,which are of great convenience to the people.The popularity of mobile phones makes the increasing demand of the phone functions.As a result,the related technology are developed,in which mobile streaming media technology is considered the most promising one.With mobile streaming media technology,mobile phone users are able to receive streaming media data in any wireless network coverage area.In practice,due to the low transmission rate,instability bandwidth and high transmission bit error rate of the wireless network,there must be an advanced video compression technology and efficient transport protocol support if you need a clear fluid on the transmission of real-time video streaming data on the wireless network. As the most advanced compression standard,H.264 video has excellent performance in the compression efficiency,stream quality,fault-tolerant,and is suitable as video compression standard of the wireless network environment.In order to achieve decoding H.264 data on the intelligent terminal,this paper works on porting H.264 video decoder based on the PC's to the Symbian platform for mobile phones.As an embedded operating system,which has difference from the PC operating system,Symbian has its own restrictions,such as the restrictions on memory management control,global variables,as well as the support of the standard C far from being perfect.So we need to transplant and optimize the H.264 codec on the Symbian platform,to achieve good video effects to meet the sensory needs of people.In this paper,based on the Symbian OS,the author designs the video player, including c streaming media server and the player client.The whole project realizes the H.264 decoder and video player on the smartphones platform.Our ultimat goal is to enable mobile phone users receive realtime multimedia information with streaming media server through witless network.Innovations in this article:Deep study of FFmpeg codec framework,cutting the core code of H.264 decoder in FFmpeg based on the limited resources of the mobile phone platform,and realizing the transplantation of C source code to Symbian platform.With communication mechanism provided by the Symbian operating system, establishing the communication during the mobile clients and remote servers.