Patent ID: 8638852

Claim:
A method of encoding video data, the method comprising: encoding, by an encoding device, a unit of the video data, the unit including a plurality of video blocks; selecting filter coefficients for filtering the video blocks of the unit of the video data, the filter coefficients including a first set and a second set; allocating different numbers of bits to different filter coefficients in the first set of the filter coefficients, wherein a number of bits allocated to one of the different filter coefficients is based at least in part on a location of the one of the different filter coefficients relative to an axis of symmetry between the first and second sets of filter coefficients; generating difference values associated with the second set of the filter coefficients based on the first set of the filter coefficients; and entropy coding the first set of filter coefficients that are allocated different numbers of bits and the difference values associated with the second set of the filter coefficients.