| 基于IP网络MPEG-4视频优化打包模型的研究 |
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| 引用本文： | 赵敏,何华灿,张剑,李伟华.基于IP网络MPEG-4视频优化打包模型的研究[J].计算机工程与应用,2004,40(24):14-17. |
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| 作者姓名： | 赵敏 何华灿 张剑 李伟华 |
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| 作者单位： | 西北工业大学计算机学院,西安,710072 |
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| 基金项目： | 国家部委“十五”预研项目 |
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| 摘 要： | 在当前网络是尽力而为的模式下,最终用户得到的视频质量是不好的。文章提出了一个基于IP网络上的MPEG-4视频包优化(Packetization)方案。所设计的算法是考虑SL分组的大小,对一个或多个SL流复用,所形成的FlexMux流完整的作为RTP包荷载。仿真结果表明,该算法所产生的包数量相对较少,降低了包之间的互关联性,体现了网络对视频传输的要求。
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| 关 键 词： | 视频流 包化 PDU RTP payload |
| 文章编号： | 1002-8331-(2004)24-0014-04 |
An Optimal Packetization Scheme for MPEG-4 Video Streaming Based on IP Network |
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| Zhao Min He,Huacan Zhang Jian Li,Weihua.An Optimal Packetization Scheme for MPEG-4 Video Streaming Based on IP Network[J].Computer Engineering and Applications,2004,40(24):14-17. |
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| Authors: | Zhao Min He Huacan Zhang Jian Li Weihua |
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| Abstract: | The best effort service of current internet can't offer any Quality of Service(Qos)guarantees to real-time traffic.So it shows the bad video effect to end user.This paper addresses the problem of optimal packetzation for MPEG-4stream based on IP network.The optimal algorithm calculates the size of Sync Layer(SL)packet,multiplex one or multi-SL packets into FlexMux packet,the whole packet is payload of RTP.Finally,some experimental results are pre-sented to demonstrate the effectiveness of the packetization schemes.Both reduces the number of transport PDU and to distill the relationship between PDU. |
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| Keywords: | video streaming packetzation PDU RTP payload |
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