LI Mingzhe, WANG Jinlin, CHEN Xiao, YE Xiaozhou. Memory Copy Optimization for Streaming Gateway Transcoding: Models and Algorithms[J]. Chinese Journal of Electronics, 2016, 25(4): 734-739. doi: 10.1049/cje.2016.06.003
Citation: LI Mingzhe, WANG Jinlin, CHEN Xiao, YE Xiaozhou. Memory Copy Optimization for Streaming Gateway Transcoding: Models and Algorithms[J]. Chinese Journal of Electronics, 2016, 25(4): 734-739. doi: 10.1049/cje.2016.06.003

Memory Copy Optimization for Streaming Gateway Transcoding: Models and Algorithms

doi: 10.1049/cje.2016.06.003
Funds:  This work is supported by the National Key Technology R&D Program (No.2012BAH02B01), and the Key Deployment Project of Chinese Academy of Sciences (No.KGZD-EW-103-4).
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  • Corresponding author: WANG Jinlin (corresponding author) received the B.S. degree in mathematics from University of Science and Technology of China in 1986 and the M.S. degree in acoustics from Institute of Acoustics, Chinese Academy of Sciences (IACAS) in 1989. He is the director and a research fellow in the National Network New Media Engineering Research Center, IACAS. His research interest includes digital signal processing, IP network technology and network streaming media. (Email:wangjl@dsp.ac.cn)
  • Received Date: 2014-06-07
  • Rev Recd Date: 2014-10-11
  • Publish Date: 2016-07-10
  • 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.
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  • H.M. Jeong, M.J. Lee, D.K. Lee, et al., "Design of home network gateway for real-time A/V streaming between IEEE1394 and ethernet", IEEE Transactions on Consumer Electronics, Vol.53, No.2, pp.390-396, 2007.
    S. Chan, C. Kok and A. Wong, "Multimedia streaming gateway with jitter detection", IEEE Transactions on Multimedia, Vol.7, No.3, pp.585-592, 2005.
    Z. Liu, Y. Yang and X. Ji, "Fast macroblock mode decision for H.264/AVC baseline profile video transcoder based on support vector machines", Multimedia systems, Vol.18, No.5, pp.359-372, 2012.
    B. Shen, S.J. Lee and S. Basu, "Caching strategies in transcoding-enabled proxy systems for streaming media distribution networks", IEEE Transactions on Multimedia, Vol.6, No.2, pp.375-386, 2004.
    F. Pescador, P. Lobo, E. Seisdedos, et al., "Real time DVB-H gateway based on DSP", IEEE International Conference on Consumer Electronics, Las Vegas, USA, pp.749-750, 2011.
    X. Lu, L. He, C. Peng, et al., "Research and demonstration of Next Generation Network and Service National Testbed of China", Testbeds and Research Infrastructures, Development of Networks and Communities, Springer Berlin Heidelberg, pp.590-593, 2011.
    A. Breznick, "A switch in time:The role of switched digital video in easing the looming bandwidth crisis in cable", IEEE Communications Magazine, Vol.46, No.7, pp.96-102, 2008.
    G. Bauer, U. Behrens, J. Branson, et al., "A comprehensive zero-copy architecture for high performance distributed data acquisition over advanced network technologies for the CMS experiment", IEEE Transactions on Nuclear Science, Vol.60, No.6, pp.4595-4602, 2012.
    V.K. Singh, S.H. Ankadi and D. Das, "Study of combined effects of zero copy and pre-processing on Input/Output performance of multimedia on demand streaming server", International Conference on Communication Systems and Networks (COMSNETS), Bangalore, India, pp.1-4, 2011.
    A.V. Aho, R. Sethi and J.D. Ullman, "Compilers:Principles, Techniques, and Tools", Addison-Wesley, Boston, USA, pp.33-39, 2006.
    V.S. Alagar and K. Periyasamy, "Specification of Software Systems", Springer, London, pp.77-103, 2011.
    Y. Zhou, "Hardware acceleration for power efficient deep packet inspection", Ph.D.Thesis, Dublin City University, Ireland, 2012.
    K. Wang, Y. Qi, Y. Xue, et al., "Reorganized and compact DFA for efficient regular expression matching", IEEE International Conference on Communications, Kyoto, Japan, pp.1-5, 2011.
    B. Hu, G. Wu, L. Pan, et al., "An implementation of interactive set-top-box and its applications", 20068th International Conference on Signal Processing, Vol.4, pp.16-20, 2006.
    R. Fielding, J. Gettys, J. Mogul, et al., "Hypertext transfer protocol-HTTP/1.1", http://www.rfc-editor.org/rfc/rfc2616.txt, 1999-6-1.
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