Patent ID: 7263125

Claim:
A method of decoding an encoded digital video sequence for use in a video decoding application to produce a decoded digital video sequence, the digital video sequence comprising a number of frames, each frame of said sequence comprising an array of pixels divided into a plurality of blocks, each block comprising a certain number of said pixels, frames of the digital video sequence encoded by: applying motion compensated prediction to blocks of pixels for producing corresponding blocks of prediction error values; applying a transform coding technique to said blocks of prediction error valves to produce sets of transform coefficient values representative of said blocks of prediction error values; and applying a level of quantization to said sets of transform coefficient values to yield sets of quantized transform coefficient values representative of said blocks of prediction error values, wherein an indication of said level of quantization is provided in the encoded bit-stream including the encoded digital video sequence, said decoding method comprising: selecting a default level of inverse quantization for use in decoding of the encoded digital video sequence to inverse quantize the sets of quantized transform coefficient values, said default level selected based on the indication of said level of quantization provided in the encoded bit-stream.