摘要： 提出了一个视频点播解决方案,给出了服务器和客户机的系统实现和工作时序,重点描述了基于客户机预测分段的码流平滑实现机制(PPSA),包括理论模型和实验仿真结果。它有效地屏蔽了解码器读取码流速率的抖动,使得服务器输出码流速率平稳,减少了对网络的冲击。该方案适用于对延迟不敏感的视频点播系统。

关键词: MPEG4, 流媒体, 码流平滑, 视频点播, 视频压缩

Abstract: This paper proposes a streaming solution suited for delay-insensitive application such as video-on-demand. It addresses the implementation and the working sequence of both the server and the client. The rate smoothing algorithm based on client, which is called prediction- piecewise-smoothing-algorithm (PPSA), is stated in detail. It shields the jitter and ensures that the streaming output from the server is flat and stable, which lessens impact to the network.

中图分类号: 

• TN919.8