Patent ID: 11882271
Assignee: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of processing video data, comprising:
performing a conversion between a video unit of a current picture of a video and a bitstream of the video according to a rule,
wherein the rule specifies that, for a given picture to be available as a collocated reference picture whose motion information is used for the conversion, the given picture has a same coding tree unit size or a same coding tree block size as the current picture, and
wherein the rule specifies that a coding tool that uses the motion information is disabled in response to the given picture having a different coding tree unit size or a different coding tree block size, and wherein the coding tool is a temporal motion vector prediction coding tool or a subblock-based temporal motion vector prediction coding tool.