Patent ID: 9560383
Date: 2017-01-31
CPC Classifications: H04N

Claim:
1. A method of coding video data comprising: coding a plurality of blocks of the video data, wherein at least one block of the plurality of blocks of video data is coded using a lossless coding mode, wherein coding the at least one block using the lossless coding mode comprises: predicting a non-zero quantization parameter (QP) value, for the at least one block based at least in part on a QP value for a quantization group that includes the at least one block, 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; determining whether to perform in-loop filtering of each of the plurality of blocks comprising: performing in-loop filtering for each of the plurality of blacks based on the respective determinations.