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Third International Workshop on Real-Time Computing Systems Application (RTCSA'96)
Continuous media storage system supporting VBR streams
Seoul, Korea
October 30-November 01
ISBN: 0-8186-7626-4
Japan Adv. Inst. of Sci. & Technol., Ishikawa, JapanAbstract: In this paper, we describe a continuous media storage system that supports the constant frame rate retrieval with variable bit rate streams. The novel characteristics of our storage system is as follows: The utilization of disk bandwidth is higher than traditional continuous media storage systems since the admission test of our storage system adopts average bandwidth usages of respective streams by introducing a novel media scaling technique in order to avoid degrading the quality of a media stream significantly when the total bandwidth exceeds 100%. Our storage system takes into account dynamic QOS control schemes. Also, it controls QOS values of respective streams according to their contents. First, we describe a media scaling technique for realizing the above characteristics, and present its scheduling algorithm and disk layout policy. Also, we present some results demonstrating the effectiveness of our approach.
Index Terms:
multimedia computing; continuous media storage system; VBR streams; constant frame rate retrieval; variable bit rate streams; disk bandwidth; dynamic QOS control schemes; media scaling technique; scheduling algorithm; disk layout policy
Citation:
T. Nakajima, H. Tezuka, "Continuous media storage system supporting VBR streams," rtcsa, pp.26, Third International Workshop on Real-Time Computing Systems Application (RTCSA'96), 1996
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