Patent ID: 9094697
Filing Date: 2015-07-28
Classification: H04N

Abstract:
1. A method of processing media data received at a receiver over a bitstream having a standardized format that supports descriptors each specifying a descriptor tag having a value within a prescribed tag value range and a descriptor length within a prescribed length value range, wherein the method comprises: receiving at the receiver an extension descriptor that specifies a descriptor tag having a value within said prescribed tag value range, a descriptor length having a value within said prescribed length value range, at least one extension descriptor tag value that identifies a descriptor, and extension descriptor data associated with the identified descriptor, and responsive to the extension descriptor tag value, employing the identified descriptor and the extension descriptor data associated with the identified descriptor to process the media data at the receiver, the extension descriptor data including at least one logic statement for testing the extension descriptor tag value against at least two potential extension descriptor tag values.