Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (24): 53-56.DOI: 10.3778/j.issn.1002-8331.2010.24.017

• 研发、设计、测试 • Previous Articles     Next Articles

Embedded stream media servers building based on SIP and multi-core architecture

CHANG Qing,PEI Ke,ZHANG Gang   

  1. College of Information Engineering,Taiyuan University of Technology,Taiyuan 030024,China
  • Received:2010-04-12 Revised:2010-06-25 Online:2010-08-21 Published:2010-08-21
  • Contact: CHANG Qing

构建基于SIP与嵌入式多核架构的流媒体服务器

常 青,裴 科,张 刚   

  1. 太原理工大学 信息工程学院,太原 030024
  • 通讯作者: 常 青

Abstract: Based on the most popular and widely acknowledged framework for embedded digital video system—Davinci framework,this paper adopts Davinci technology typical processor—TMS320DM6446 as hardware platform,constructs a streaming media server.The streaming media server system can implement real-time coding,video storage,real-time supervision and remote control,which makes use of H.264,MPEG4 and AVS as video compression standard,the G.711 and G.728 as audio compression standard,the SIP as access control protocol,the RTP/RTCP/RTSP and UDP as multimedia control and transport protocol.The system has high performance and coding efficiency,low cost and delay time and hard real-time advantages,and it can affluently run in wide area network.

Key words: embedded multi-core system, Session Initiation Protocol(SIP), streaming media server, Davinci technology

摘要:

结合当前最流行且得到业界广泛认可的嵌入式数字视频系统框架——达芬奇技术框架,基于达芬奇技术典型处理器TMS20DM6446平台构建流媒体服务器,用AVS、H.264和MPEG4做视频压缩,用G.711和G.728做音频压缩算法,用SIP做访问控制协议,用RTP/RTCP和UDP等做媒体控制和传输协议;完成具有完整实时编码、录像存储、实时监控、远程控制等功能的网络音视频监控系统。该系统具有高性能、高编码效率、低成本、低延迟、强实时性等特点,能够在广域网上流畅运行。

关键词: 嵌入式多核系统, 会话初始协议, 流媒体服务器, 达芬奇技术

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