Patent ID: 8743950

Claim:
Method for filtering a scalable video stream received by a terminal, organised in data unit blocks each comprising a base data unit and a set of enhancement data units distributed according to at least two types of enhancement data, corresponding respectively to time and/or space and/or quality characteristics and making it possible to define several levels of quality according to the number and type of enhancement data units used, wherein the method comprises the following steps performed by the terminal: receiving from a server the scalable video stream and parameters defining at least two distinct paths of filtering the data units of each block, each path defining a series of successive fallback positions, from an initial position, each fallback position using at least one data unit less than a preceding position, selecting one of said paths as a function of a predetermined criterion in the terminal taking account of at least one of a type of content of said stream or at least one piece of information representing a capacity of the terminal receiving said stream, separating said enhancement data units, as a function of the selected path, between data units to be used and discarded data units, rebuilding video images using said data units to be used, and storing said discarded data units.