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一种基于IP网络流媒体传输的码流平滑算法
A New Rate Smoothing Algorithm Based on IP Streaming
【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。
【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.
【关键词】 MPEG4;
流媒体;
码流平滑;
视频点播;
视频压缩;
【Key words】 MPEG4; Streaming; Rate smoothing; Video-on-demand (VoD); Compressed video;
【Key words】 MPEG4; Streaming; Rate smoothing; Video-on-demand (VoD); Compressed video;
- 【文献出处】 计算机工程 ,Computer Engineering , 编辑部邮箱 ,2004年19期
- 【分类号】TN919.8
- 【被引频次】6
- 【下载频次】144