Patent ID: 9510020
Filing Date: 2016-11-29
CPC Classification: H04N

Claim Text:
1. A method of coding video data comprising: coding a plurality of blocks of video data, wherein at least one block of the plurality of blocks of video data is coded using an intra pulse code modulation (IPCM) coding mode; predicting a non-zero quantization parameter (QP) value, for the at least one block coded using the IPCM coding mode, based at least in part on a QP value for a quantization group that includes the at least one block coded using the IPCM coding mode, wherein the quantization group comprises one or more consecutive blocks in a coding order of the plurality of blocks; assigning the non-zero QP value for the at least one block coded using the IPCM coding mode; and performing deblocking filtering on one or more of the plurality of blocks of video data based on the IPCM coding mode used to code the at least one block and the assigned non-zero QP value for the at least one block.