Research On Streaming Media Playing And Codecing Based On The Smart Phones

With the development of 3G services and the increasing attention of multimedia, design and implementation of player on the smartphone has becoming hot issues of mobile application development. Based on the background, this paper has the analysis of mobile streaming media transfer protocol. Combined the characteristics of the Android operating system and actual demand, the implementation of streaming player is the focal research.The main work of this paper:1) Introduce the application status and development trend of streaming media technology. Investigate the development background of smart phones. With a overview of Android operating system, the analysis of Android framework has be taked.2) Research the theory of multimedia data coding and decoding technology. Analyze the structure and characteristics of H.264 Codec. Based on the theoretical analysis, point out that the performance advantages and disadvantages through the simulation.3) Through the analysis and contrast of open-source decoder, chose the appropriate transplant program. Because of the limitations for mobile phone, optimiza the open-source FFmpeg and reserve required functionality for improving the efficiency.4) With the actual demand, based on the modular structure of player, propose the design of player. Specify the structure and function of each module. Achieve playing common video file at last.