Patent ID: 8660191
Filing Date: 2014-02-25
Classification: H04N

Abstract:
1. A method for predicting display buffer underflow and recovering from display buffer underflow, comprising: a) calculating a time delay for displaying a first group of one or more frames of a video picture stream located in an output frame buffer; b) calculating a time delay for displaying a second group of one or more frames in the video picture stream, the second group of one or more frames directly following the first group of one or more frames in the output buffer and currently decoded by a decoder, but not yet deposited into the output frame buffer; c) calculating a time delay for decoding a third group of one or more frames in the video picture stream, the third group of one or more frames directly following the second group and not yet decoded by the decoder; and d) switching the decoder to a fast decoding mode or having the decoder remain in a fast decoding mode if the sum of the time delay in a) and b) is less than the time delay in c), the fast decoding mode configured to begin during decoding of a first frame of the third group of one or more frames in the video picture stream.