文章基本信息

标题：Balancing MPEG Transcoding with Storage in Multiple-Quality Video-on-Demand Services
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作者：Song, Min-Seok ; Sim, Jeong-Seop ; Go, Jae-Doo 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2009
卷号：31
期号：3
页码：333-335
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：To match the requirements of heterogeneous mobile devices, video objects may be transcoded, which requires considerable CPU resources. Alternatively, multiple versions of the same video may be stored on servers, but this requires a lot of disk space. We formulate the trade-off between the versions that are stored on disk and the need for transcoding. We propose an optimal solution to this formulation based on dynamic programming. Experiments show that our scheme allows up to 68% more clients to be admitted than conventional schemes when a reasonable amount of storage is available.
关键词：MPEG transcoding;video streaming;storage management;streaming in wireless network