Patent ID: 6278735
Filing Date: 2001-08-21
Classification: H04N

Abstract:
A method of processing groups of frames, said method comprising:encoding at least one group of frames of an input stream;determining, prior to encoding the entire input stream, a number of bits to be allocated to another group of frames of said input stream, said another group of frames to be encoded in a self-variable bit rate mode, and wherein said determining uses one or more parameter values obtained from said encoding; andencoding said another group of frames in a single pass variable bit rate mode, wherein said another group of frames is encoded in only one encoding pass;wherein said encoding said another group of frames comprises adjusting an ideal number of target bits of a picture type, within said another group of frames, wherein said adjusting comprises scaling a sub-error accumulation of previously encoded groups of frames of said input stream using a first scaling factor and scaling a sub-error accumulation of frames of said another group of frames using a second scaling factor.