Patent ID: 11924469
Assignee: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. The apparatus of claim 11, wherein;
wherein in a case that a size of the current video block is 4*4 or 8*8, the region is corresponding to first 8 coefficients in a top-left 4*4 coding group;
wherein in a case that the width or the height of the current video block is greater than or equal to 4, and a size of the current video block is not 4*4 or 8*8, the region is corresponding to a top-left 4*4 coding group; and
wherein in response to the side information indicating that the secondary transform tool is enabled, a first syntax element indicating at least one of applying a primary transform tool and an index of transform kernels used in the primary transform tool is not present in the bitstream.