Method, device, and medium for video processing

A method for video processing, comprising:

• obtaining, during a conversion between a first video unit in a target picture of a video and a bitstream of the video, second coding data of the first video unit based on first coding data of the first video unit and a refinement process, the first coding data being coded by a target coding mode;
• determining the use of the first coding data or the second coding data for processing a second video unit subsequent to the first video unit based on the target coding mode;
• and
• performing the conversion based on the determination.

An apparatus for video processing, comprising:

• a processor;
• and
• a non-transitory memory coupled to the processor and having instructions stored thereon, wherein the instructions upon execution by the processor, cause the processor to:
• obtain, during a conversion between a first video unit in a target picture of a video and a bitstream of the video, second coding data of the first video unit based on first coding data of the first video unit and a refinement process, the first coding data being coded by a target coding mode;
• determine the use of the first coding data or the second coding data for processing a second video unit subsequent to the first video unit based on the target coding mode;
• and
• generate the bitstream based on the determination.

A non-transitory computer-readable storage medium storing instructions that cause a processor to perform a method comprising:

• obtaining, during a conversion between a first video unit in a target picture of a video and a bitstream of the video, second coding data of the first video unit based on first coding data of the first video unit and a refinement process, the first coding data being coded by a target coding mode;
• determining the use of the first coding data or the second coding data for processing a second video unit subsequent to the first video unit based on the target coding mode;
• and
• performing the conversion based on the determination.