XML-Driven Bitstream Extraction Along the Temporal Axis of SMPTE’s Video Codec 1

out to transparently deliver digital media content to any device over any network. One of the tools that underlies this vision is the MPEG-21 Bitstream Syntax Description Language (MPEG-21 BSDL). This language sits at the core of an XML-driven architecture for media content customization, hereby allowing to tackle the huge diversity in the present-day terminal and network technology. In this paper, a discussion is provided on how Video Codec 1 (VC-1) encoded bitstreams can be fitted in such an adaptation framework. More precisely, we chart a few different strategies to automatically create XML-based descriptions of the high-level structure of VC-1 compliant bitstreams in order to steer a desired adaptation along their temporal axis. Some performance measurements in terms of computational times, file sizes, and memory consumption are presented as well