Fast and predictable video compression in software design and implementation of an H.261 codec

Dagmar Geske; Robert Hess

doi:10.1117/12.321927

16 September 1998 Fast and predictable video compression in software design and implementation of an H.261 codec

Dagmar Geske, Robert Hess

Proceedings Volume 3408, Broadband European Networks and Multimedia Services; (1998) https://doi.org/10.1117/12.321927
Event: SYBEN-Broadband European Networks and Electronic Image Capture and Publishing, 1998, Zurich, Switzerland

Abstract

The use of software codecs for video compression becomes commonplace in several videoconferencing applications. In order to reduce conflicts with other applications used at the same time, mechanisms for resource reservation on endsystems need to determine an upper bound for computing time used by the codec. This leads to the demand for predictable execution times of compression/decompression. Since compression schemes as H.261 inherently depend on the motion contained in the video, an adaptive admission control is required. This paper presents a data driven approach based on dynamical reduction of the number of processed macroblocks in peak situations. Besides the absolute speed is a point of interest. The question, whether and how software compression of high quality video is feasible on today's desktop computers, is examined.

Citation Download Citation

Dagmar Geske and Robert Hess "Fast and predictable video compression in software design and implementation of an H.261 codec", Proc. SPIE 3408, Broadband European Networks and Multimedia Services, (16 September 1998); https://doi.org/10.1117/12.321927

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