Patent ID: 8594177

Claim:
A video processing apparatus comprising: first stage video processing circuitry for receiving a bitstream of compressed encoded video data representing a plurality of frames of video data and configured to perform one or more processing operations on said input compressed video data; analysing circuitry configured to analyse said processed bitstream and for determining for at least one of said plurality of frames at least one portion of said at least one frame that is not required in the decoding of other frames and for generating at least one indicator indicating said at least one portion; frame reconstruction processing circuitry configured to perform frame reconstruction on said compressed encoded video data and to receive said at least one indicator and to generate at least one partial reference frame for use in decoding other frames from said bitstream and said at least one indicator, said frame reconstruction processing circuitry being configured to determine from said at least one indicator said at least one portion that is not required for decoding other frames and to generate said partial reference frame as a frame that does not include said at least one portion and to output said partial reference frame for use in decoding said other frames.