NDLI: Memory Copy Optimization for Streaming Gateway Transcoding: Models and Algorithms

Content Provider	IET Digital Library
Author	Li, Mingzhe Wang, Jinlin Chen, Xiao Ye, Xiaozhou
Abstract	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 Nextgeneration 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.
Starting Page	734
Ending Page	739
Page Count	6
ISSN	10224653
Volume Number	25
e-ISSN	20755597
Issue Number	Issue 4, Jul (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/cje/25/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/cje.2016.06.003
Journal	Chinese Journal of Electronics
Publisher Date	2016-07-01
Access Restriction	Open
Rights Holder	© Chinese Institute of Electronics
Subject Keyword	Algorithm-level Platform-independent Strategy Code Computer Communication Computer Network And Technique Internetworking Linear Space Complexity Media Streaming Memory Copy Optimization Multimedia Communication Next-generation Broadcasting Next-generation On-demand System Optimisation Optimisation Technique Payload Extraction Algorithm Protocol Translation Streaming Gateway Transcoding Transcoding
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering

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