Patent ID: 7646816
Filing Date: 2010-01-12
Classification: H04N

Abstract:
1. A method of decoding video with a video decoder, the method comprising: at the video decoder, receiving a given bit stream of encoded data for a given video clip; at the video decoder, receiving multiple sets of reference decoder parameters signaled for the given bit stream of encoded data for the given video clip, wherein each of the multiple sets comprises a rate parameter and a decoder buffer size parameter for a reference decoder model that specifies constraints on fluctuations of the given bit stream of encoded data for the given video clip, and wherein each of the multiple sets indicates a different and alternative combination of rate parameter and decoder buffer size parameter for the same video images in the given bit stream of encoded data for the given video clip; with the video decoder, determining an operating condition using any of the multiple sets, wherein the operating condition indicates peak rate or decoder buffer size for decoding the encoded data for the given video clip, and wherein the multiple sets are concurrently available for use in the determining the operating condition; and with the video decoder, decoding the encoded data for the given video clip in accordance with the operating condition.