Efficient processing of MPEG-21 metadata in the binary domain

Christian Timmerer; Thomas Frank; Hermann Hellwagner; Jörg Heuer; Andreas Hutter

doi:10.1117/12.630046

24 October 2005 Efficient processing of MPEG-21 metadata in the binary domain

Christian Timmerer, Thomas Frank, Hermann Hellwagner, Jörg Heuer, Andreas Hutter

Proceedings Volume 6015, Multimedia Systems and Applications VIII; 601505 (2005) https://doi.org/10.1117/12.630046
Event: Optics East 2005, 2005, Boston, MA, United States

Abstract

XML-based metadata is widely adopted across the different communities and plenty of commercial and open source tools for processing and transforming are available on the market. However, all of these tools have one thing in common: they operate on plain text encoded metadata which may become a burden in constrained and streaming environments, i.e., when metadata needs to be processed together with multimedia content on the fly. In this paper we present an efficient approach for transforming such kind of metadata which are encoded using MPEG's Binary Format for Metadata (BiM) without additional en-/decoding overheads, i.e., within the binary domain. Therefore, we have developed an event-based push parser for BiM encoded metadata which transforms the metadata by a limited set of processing instructions - based on traditional XML transformation techniques - operating on bit patterns instead of cost-intensive string comparisons.

Citation Download Citation

Christian Timmerer, Thomas Frank, Hermann Hellwagner, Jörg Heuer, and Andreas Hutter "Efficient processing of MPEG-21 metadata in the binary domain", Proc. SPIE 6015, Multimedia Systems and Applications VIII, 601505 (24 October 2005); https://doi.org/10.1117/12.630046

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