直播现场流媒体传输系统的抖动控制技术研究

Research on Jitter Control Technology in Live Streaming Media Transmission Systems

随着网络视频直播的普及,流畅、稳定的直播体验已成为电视、网络流媒体服务供应方的首要追求,然而直播现场的流媒体传输系统往往难以避免抖动问题的出现。对此,阐述直播现场流媒体传输系统的基本架构,讨论抖动问题的基本概念与成因,详细论述缓冲区管理、前向纠错、流量整形等几种主流的抖动控制技术在直播系统中的应用思路,进一步探讨多种技术的协同优化策略。

With the popularity of network video live broadcast,smooth and stable live broadcast experience has become the primary pursuit of television and network streaming media service providers.However,the streaming media transmission system of live broadcast is often difficult to avoid the problem of jitter.In this regard,this paper describes the basic architecture of live streaming media transmission system,discusses the basic concepts and causes of jtter problem,discusses in detail the application ideas of buffer management,forward error correction,traffic shaping and other mainstream jitter control technologies in live streaming system,and further discusses the collaborative optimization strategy of multiple technologies.