摘要： 通过分析网络电视(IPTV)服务的特性和快进快退操作对服务器的影响，设计一种对快进快退操作进行优化的流媒体文件封装与索引格式，在采用数据块状存储的基础上，提出帧类别存储策略。性能对比实验表明，使用该文件格式的IPTV服务器提高了在快进快退模式下的性能。

关键词: 网络电视, 快进快退, 媒体封装, 磁盘I/O

Abstract: By analyzing the characteristics of Internet Protocol Television(IPTV) service and the influence of fast forward/backward on the server, a packaging and indexing format of streaming media file optimized for fast forward/backward is proposed. Based on block-level media storage technology, it designs frame type storage strategy. Performance evaluation experiments demonstrate that IPTV server can work more efficiently with the format under fast forward/backward.

Key words: Internet Protocol Television(IPTV), fast forward/backward, media packaging, disk I/O

中图分类号: 

• TP37