DIGITAL SIGNAL PROCESSING METHOD, PROCESSOR THEREOF, PROGRAM THEREOF, AND RECORDING MEDIUM CONTAINING THE PROGRAM

摘要

From a sample SFC of a current frame, a sample string S similar to its head, sample string, and an end sample string is extracted, concatenated before and after the current frame as a substitute sample string AS, and subjected to filter processing or prediction encoding so as to obtain a processing result SOU of the current frame. In the case of the prediction encoding, auxiliary information indicating which part has been used is also output. This enables completion of processing within the current frame without significantly lowering continuity or efficiency, i.e., filter processing requiring processing over the preceding and the subsequent frame such as an interpolation filter, self feedback type prediction encoding, and decoding.