摘要
为了满足移动用户对视频服务的需求,设计了无线流媒体系统．该系统采用AVS_M视频标准压缩视频文件,并将压缩文件以3GP文件格式存放于服务器．系统通过RTSP协议控制流媒体播放,SDP协议描述流媒体会话,RTP／RTCP协议传输和控制3GP流媒体数据．在NS2通信系统仿真软件和实验平台测试结果表明, 设计的系统能够更好服务于流媒体传输与终端回放．
Aiming at video service needed by mobile client, this paper proposes a high performance wireless streaming media system based on the 3GP file format. The proposed system adopts AVS_M to compress the video data and stores the compressed data in the server by using the 3GP file format. The system controls the play-back of streaming media by RTSP, describes the multimedia session by SDP, transmitts and commands 3GP streaming media data by RTP/RTCP. Simulation test in NS2 show that this method performs better for the transmission and play-back of streaming media by slowing down the transmission rate without higher buffer requirement.
出处
《北京工业大学学报》
EI
CAS
CSCD
北大核心
2006年第5期424-430,共7页
Journal of Beijing University of Technology
基金
国家自然科学基金资助项目(60572104)
北京市自然科学基金资助(40410031)
多媒体与智能软件技术北京市重点实验室资助(KB102-00584)
