Patent ID: 7995656
Filing Date: 2011-08-09
Classification: H04L,H04N

Abstract:
1. A method for decoding a multimedia bitstream, comprising: receiving a base layer of encoded data and an enhancement layer of encoded data; receiving a residual error coefficient in the base layer of encoded data and receiving a differential refinement to the base layer residual error coefficient in the enhancement layer of encoded data, wherein the base layer residual error coefficient is either a minimum of an original base layer residual error coefficient and an original enhancement layer residual error coefficient or zero, and the enhancement layer differential refinement is determined based on the base layer residual error coefficient and the original enhancement layer residual error coefficient; combining the received base layer of encoded data and the received enhancement layer of encoded data; combining the base layer residual error coefficient and the differential refinement with the combined base layer and enhancement layer of encoded data; and decoding the combined base layer and enhancement layer of encoded data, and the combined base layer residual error coefficient and the differential refinement.