CPC H04N 19/117 (2014.11) [H04N 19/132 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/82 (2014.11)] | 20 Claims |
1. A method of processing video data, comprising:
identifying, for applying a deblocking filtering process to a first video block and a second video block of a video during a conversion between the first and second video blocks and a bitstream of the video, at least one boundary at a vertical edge and/or a horizontal edge of the first and second video blocks, wherein the at least one boundary includes a prediction subblock boundary;
determining a boundary strength of the at least one boundary;
deciding whether to turn on or off a filter for the at least one boundary based on the boundary strength;
selecting a strength of the filter in case the filter is turned on; and
performing the conversion based on the selecting,
wherein the boundary strength is determined based on whether an absolute difference between a horizontal or vertical component of block vectors used in a prediction of the first and second video blocks is greater than or equal to a threshold in case that both the first and second video blocks are coded using an intra block copy prediction mode, wherein the threshold is a non-integer, and
wherein the prediction subblock boundary includes a prediction unit boundary introduced by a subblock-based temporal motion vector predictor mode or an affine motion compensation mode, and wherein the deblocking filtering process is applied on an 8x8 grid for the prediction subblock boundary.
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