XML-driven Exploitation of Combined Scalability in Scalable H.264/AVC Bitstreams

— The heterogeneity in the contemporary multimedia environments requires a format-agnostic adaptation framework for the consumption of digital video content. Scalable bitstreams can be used in order to satisfy as many circumstances as possible. In this paper, the scalable extension on the H.264/AVC specification is used to obtain the parent bitstreams. The adaptation along the combined scalability axis of the bitstreams is done in -independent manner. Therefore, an abstraction layer of the bitstream is needed. In this paper, XML descriptions are used representing the high-level structure of the bitstreams by relying on the MPEG-21 Bitstream Syntax Description Language standard. The exploitation of the combined scalability is executed in the XML domain by implementing the adaptation process in a Streaming Transformation for XML (STX) stylesheet. The algorithm used in the transformation of the XML description is discussed in detail in this paper. From the performance measurements, one...

• Type: Conference
• Year: 2007
• Where: ISCAS
• Authors: Davy De Schrijver, Wesley De Neve, Koen De Wolf, Peter Lambert, Davy Van Deursen, Rik Van de Walle
• Keywords: ISCAS 2007, Scalable Bitstreams, Xml Description, XML Domain