Modelling dependency in multimedia streams
MULTIMEDIA '06 Proceedings of the 14th annual ACM international conference on Multimedia
An optimized MPEG-21 BSDL framework for the adaptation of scalable bitstreams
Journal of Visual Communication and Image Representation
Content-driven adaptation of on-line video
Image Communication
XFlavor: providing XML features in media representation
Multimedia Tools and Applications
DCAF: An MPEG-21 Dynamic Content Adaptation Framework
Multimedia Tools and Applications
gBFlavor: a new tool for fast and automatic generation of generic bitstream syntax descriptions
Multimedia Tools and Applications
Improved BSDL-based content adaptation for JPEG 2000 and HD Photo (JPEG XR)
Image Communication
Semantic adaptation of synchronized multimedia streams in a format-independent way
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
Multimedia Tools and Applications
ACIVS'07 Proceedings of the 9th international conference on Advanced concepts for intelligent vision systems
Predictable processing of multimedia content, using MPEG-21 digital item processing
PCM'07 Proceedings of the multimedia 8th Pacific Rim conference on Advances in multimedia information processing
DELOS'07 Proceedings of the 1st international conference on Digital libraries: research and development
Content adaptation on mobile devices using MPEG-21
Journal of Mobile Multimedia
Resource adaptation for mobile AV devices in the UPnP QoS arcitecture
Journal of Mobile Multimedia
An engine for content-aware on-line video adaptation
SAMT'06 Proceedings of the First international conference on Semantic and Digital Media Technologies
A real-time content adaptation framework for exploiting ROI scalability in H.264/AVC
ACIVS'06 Proceedings of the 8th international conference on Advanced Concepts For Intelligent Vision Systems
Real-time BSD-driven adaptation along the temporal axis of H.264/AVC bitstreams
PCM'06 Proceedings of the 7th Pacific Rim conference on Advances in Multimedia Information Processing
A real-time XML-based adaptation system for scalable video formats
PCM'06 Proceedings of the 7th Pacific Rim conference on Advances in Multimedia Information Processing
Scalable multimedia delivery with QoS management in pervasive computing environment
The Journal of Supercomputing
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The seamless access to rich multimedia content on any device and over any network, usually known as Universal Multimedia Access, requires interoperable description tools and adaptation techniques to be developed. To address the latter issue, MPEG-21 Digital Item Adaptation (DIA) introduces the Bitstream Syntax Description (BSD) framework, which provides tools for adapting multimedia content in a generic (i.e., coding format independent) way. The basic idea is to use the eXtensible Markup Language (XML) to describe the high-level structure of a binary media bitstream, to transform its description [e.g., by means of eXtensible Stylesheet Language Transformations (XSLT)], and to construct the adapted media bitstream from the transformed description. This paper presents how this basic BSD framework, initially developed for nonstreamed content and suffering from inherent limitations and high memory consumption of XML-related technologies such as XSLT, can be advanced and efficiently implemented in a streaming environment and on resource-constrained devices. Two different attempts to solve the inherent problems are described. The first approach proposes an architecture based on the streamed processing of Simple Application Programming Interface for XML (SAX) events and adopts Streaming Transformations for XML (STX) as an alternative to XSLT, whereas the second approach breaks a BSD up into well-formed fragments called process units that can be processed individually by a standard XSLT processor. The current status of our work, as well as directions for future research, are given.