Bitstream syntax description based adaptation of scalable video

Using scalable coding technology the multimedia content can be easily made accessible on different display terminals connected through heterogeneous channels, as scalable bitstreams can be seamlessly adapted according to the network restrictions and/or terminal properties. To make the adaptation process coding format-independent, a XML description of the bitstream scalable structure is created. Then, the adaptation is performed on the XML description and an adapted bitstream is generated from the adapted XML description. In this paper techniques used in scalable video coding, bitstream descriptions and XML as well as extractor based adaptation of scalable video bitstreams are presented.