Rate-constrained bandwidth smoothing for delivery of stored video

Wu-chi Feng

doi:10.1117/12.264304

24 January 1997 Rate-constrained bandwidth smoothing for delivery of stored video

Wu-chi Feng

Proceedings Volume 3020, Multimedia Computing and Networking 1997; (1997) https://doi.org/10.1117/12.264304
Event: Electronic Imaging '97, 1997, San Jose, CA, United States

Abstract

Bandwidth smoothing techniques for the delivery of compressed prerecorded video have been shown effective in removing the burstiness required for the continuous playback of stored video. Given a fixed client-side buffer, several bandwidth smoothing algorithms have been introduced that are provably optimal under certain constraints. These algorithms, however, may be too aggressive in the amount of data that they prefetch, making it more difficult to support VCR functions that are required for interactive video-on- demand systems. In this paper, we introduce a rate- constrained bandwidth smoothing algorithm for the delivery of stored video that, given a fixed maximum bandwidth rate minimizes both the smoothing buffer requirements as well as the buffer residency requirements. By minimizing the buffer residency times, the clients and servers can remain more tightly coupled making VCR functions easier to support. A comparison between the rate-constrained bandwidth smoothing algorithm and other bandwidth smoothing algorithms is presented using a compressed full-length movie.

Citation Download Citation

Wu-chi Feng "Rate-constrained bandwidth smoothing for delivery of stored video", Proc. SPIE 3020, Multimedia Computing and Networking 1997, (24 January 1997); https://doi.org/10.1117/12.264304

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