Patent ID: 7937735
Filing Date: 2011-05-03
Classification: H04N

Abstract:
1. A method for generating and processing data for the display of a stream of video data on a display screen connected to a data processing apparatus, said method comprising the steps of: processing a motion picture expert group compliant data stream of video data selected to be viewed by a user in a first format via said apparatus, the largest frames of said video data known as I frames; pre-filling a buffer memory in the apparatus with a first threshold level of said video data prior to decoding said video data, the user viewing the same in the first format; said user selecting with selection means to view said video data in an altered format, and in response; changing the required level of said video data to be held in said buffer memory for the altered format to a second threshold level; wherein at the second threshold level the buffer memory substantially accommodates no more video data than that corresponding to a single I frame, plus a small tolerance percentage value; filling the buffer memory with said video data corresponding to a single I-frame plus a same tolerance percentage value; and thereby generating an altered format for said video data, wherein the altered format is a fast cue or fast review video display.