流媒体应用的服务质量问题分析

QoS Analysis on Streaming Media Applications

本文首先较全面地分析了流媒体系统中服务质量（QoS）问题的制约因素，从服务质量实现的两个基本条件出发，得到了服务质量问题的全面解决方法，该方法从内容、网络、传输策略和服务器四个方面综合考虑。然后从拥塞控制和错误控制出发，深入探讨了在流媒体传输过程中涉及的QoS控制机制。这对服务质量问题的解决以及流媒体应用系统的建设具有重要意义。

The restriction of QoS problem is analyzed and a total solution to the problem is produced on the basis of two fundamentals of QoS realization. The four factors of content, network, transfer policy and media server are taken into consideration in the solution. QoS control mechanisms in streaming media transmission are discussed on the basis of congestion control and error control. There will be meaningful for solving QoS problems and building streaming media application system.