Design And Implement Of Android-based Stream Media Transmission System

With the rapid development of the fourth generation mobile communication technology,the popularity of smartphones and the high availability of streaming media technology, The voice service in general has been unable to meet the needs of people, video services is stepping into the era of blowout. Improvement and development of mobile streaming media transmission technology is imminent. This paper studies the real-time transmission of streaming media on Android platform,builds a real-time transmission system of streaming media based on the Android platform.This article includes the study of Android system architecture and multimedia architecture, H264 video compression technology and real-time streaming media transport protocol RTP/RTCP.This paper designs and implements a streaming system based on Android. System consists of three parts: the front-end capture subsystem, a streaming media server and streaming media clients. This paper describes how the front-end video capture system implements the capture of video, how to achieve the video coding in the format of H.264, how to pack the video into RTP packets and selection of packing strategy under different circumstances. After the front-end capture system sends stream data to the streaming media server,the media server implements streaming data release based on SDP protocol. The streaming clients can access the streaming media server for playback of streaming media.