构建基于SIP与嵌入式多核架构的流媒体服务器  

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

作　　者：常青[1] 裴科[1] 张刚[1] 

机构地区：[1]太原理工大学信息工程学院,太原030024

出　　处：《计算机工程与应用》2010年第24期53-56,共4页Computer Engineering and Applications

基　　金：国家自然科学基金(No.6772101);山西省青年科技基金项目(No.2010021019)~~

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。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.

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 

分 类 号：TP368.2[自动化与计算机技术—计算机系统结构]