Flavor: a language for media representation
MULTIMEDIA '97 Proceedings of the fifth ACM international conference on Multimedia
XSLT Programmer's Reference
Generating MPEG-21 BSDL Descriptions Using Context-Related Attributes
ISM '05 Proceedings of the Seventh IEEE International Symposium on Multimedia
The MPEG-21 Book
ICICIC '06 Proceedings of the First International Conference on Innovative Computing, Information and Control - Volume 3
MPEG video markup language and its applications to robust video transmission
Journal of Visual Communication and Image Representation
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
Optimal adaptation decision-taking for terminal and network quality-of-service
IEEE Transactions on Multimedia
Bitstream syntax description-based adaptation in streaming and constrained environments
IEEE Transactions on Multimedia
Run-length encodings (Corresp.)
IEEE Transactions on Information Theory
gBFlavor: a new tool for fast and automatic generation of generic bitstream syntax descriptions
Multimedia Tools and Applications
Design options and comparison of in-network H.264/SVC adaptation
Journal of Visual Communication and Image Representation
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Image Communication
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Proceedings of th 12th International Workshop on Software and Compilers for Embedded Systems
Improved BSDL-based content adaptation for JPEG 2000 and HD Photo (JPEG XR)
Image Communication
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A format-agnostic framework for content adaptation allows reaching a maximum number of users in heterogeneous multimedia environments. Such a framework typically relies on the use of scalable bitstreams. In this paper, we investigate the use of bitstreams compliant with the scalable extension of the H.264/MPEG-4 AVC standard in a format-independent framework for content adaptation. These bitstreams are scalable along the temporal, spatial, and SNR axis. To adapt these bitstreams, a format-independent adaptation engine is employed, driven by the MPEG-21 Bitstream Syntax Description Language (BSDL). MPEG-21 BSDL is a specification that allows generating high-level XML descriptions of the structure of a scalable bitstream. As such, the complexity of the adaptation of scalable bitstreams can be moved to the XML domain. Unfortunately, the current version of MPEG-21 BSDL cannot be used to describe the structure of large video bitstreams because the bitstream parsing process is characterized by an increasing memory consumption and a decreasing description generation speed. Therefore, in this paper, we describe a number of extensions to the MPEG-21 BSDL specification that make it possible to optimize the processing of bitstreams. Moreover, we also introduce a number of additional extensions necessary to describe the structure of scalable H.264/AVC bitstreams. Our performance analysis demonstrates that our extensions enable the bitstream parsing process to translate the structure of the scalable bitstreams into an XML document multiple times faster. Further, a constant and low memory consumption is obtained during the bitstream parsing process.