Patent ID: 8665959

Claim:
A method of encoding a video block that includes a plurality of partitions that are predicted from one or more reference lists, the method comprising: performing block-based prediction of the partitions of the video block; generating a video block syntax element for the video block to indicate whether all of the partitions of the video block are predicted based on a same one of the reference lists and no greater than quarter-pixel accuracy is used, wherein if the video block syntax element indicates that all of the partitions of the video block are predicted based on the same one of the reference lists and no greater than quarter-pixel accuracy is used, partition-level signaling of the reference lists is avoided, and wherein if the video block syntax element does not indicate that all of the partitions of the video block are predicted based on the same one of the reference lists and no greater than quarter-pixel accuracy is used, partition-level signaling of the reference lists occurs; and if the video block syntax element does not indicate that all of the partitions of the video block are predicted based on the same one of the reference lists and no greater than quarter-pixel accuracy is used, generating partition-level syntax elements for each of the partitions of the video block, wherein the partition-level syntax elements each identify one of the reference lists and motion vector accuracy for a given one of the partitions.