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	Memory copy optimization for streaming gateway transcoding: models and algorithms
	Li Mingzhe1,2; Wang Jinlin1; Chen Xiao1; Ye Xiaozhou1
刊名	Chinese journal of electronics
	2016-07-01
卷号	25期号:4页码:734-739
关键词	Streaming media Gateway Memory copy Automata Pattern matching
ISSN号	1022-4653
DOI	10.1049/cje.2016.06.003
通讯作者	Wang jinlin(wangjl@dsp.ac.cn)
英文摘要	Repeated memory copy during protocol translation inhibits capacity of a streaming media gateway. unlike existing optimization techniques that rely on platform-specific features, this paper investigates algorithm-level platform-independent strategies. a mathematical concept of the buf-string is proposed to model the protocol transcoding process. based on this model three payload extraction algorithms that can reduce memory copy are presented. the streaming gateway used in the next-generation broadcasting (ngb) and the next generation on-demand (ngod) system is taken as an example to demonstrate and evaluate our strategies. experimental results from an x86 host and an embedded system prove that our strategies can reduce cpu overhead by 15% to 45%, and optimize the linear space complexity to a constant one.
WOS关键词	VIDEO ; TIME
WOS研究方向	Engineering
WOS类目	Engineering, Electrical & Electronic
语种	英语
出版者	TECHNOLOGY EXCHANGE LIMITED HONG KONG
WOS记录号	WOS:000379796700021
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2374655
专题	中国科学院大学
通讯作者	Wang Jinlin
作者单位	1.Chinese Acad Sci, Natl Network New Media Engn Res Ctr, Inst Acoust, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li Mingzhe,Wang Jinlin,Chen Xiao,et al. Memory copy optimization for streaming gateway transcoding: models and algorithms[J]. Chinese journal of electronics,2016,25(4):734-739.
APA	Li Mingzhe,Wang Jinlin,Chen Xiao,&Ye Xiaozhou.(2016).Memory copy optimization for streaming gateway transcoding: models and algorithms.Chinese journal of electronics,25(4),734-739.
MLA	Li Mingzhe,et al."Memory copy optimization for streaming gateway transcoding: models and algorithms".Chinese journal of electronics 25.4(2016):734-739.

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