Meta-caching and meta-transcoding for server-side service proxy

Authors:
B. Shen
Affiliations:
Hewlett-Packard Labs., Palo Alto, CA, USA
Venue:
ICME '03 Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 2
Year:
2003

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Abstract

This paper proposes novel concepts of meta-caching and meta-transcoding which indicate that intermediate results (metadata) of service (e.g., video transcoding) sessions are cached and subsequent identical service requests are served through transcoding from the cached metadata. The proposed methods provide a foundation to achieving superior storage and computation resource balance at service proxies. It is primarily useful in reducing the computing load of service proxies at the server side. The paper further identifies the appropriate metadata and its characteristics for three types of video transcoding tasks. Simulations based on these characteristics validate that the proposed methods achieve superior computing load reduction on transcoding service proxies.