Patent ID: 11943439
Assignee: BYTEDANCE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A non-transitory computer-readable recording medium storing a bitstream of a video which is generated by a method performed by a video processing apparatus, wherein the method comprises:
generating the bitstream for a current video block of the video,
wherein when the current video block is coded using a colour transform mode, the generating the bitstream comprises applying an inverse colour transform on the current video block according to a rule,
wherein the rule specifies that a clipping operation, f(a, b, x), is applied to an input of the inverse colour transform,
wherein f(a, b, x)=(x<a?a:(x>b?b:x)), x is a value to be clipped, a is an integer lower bound of the clipping operation, and b is an integer upper bound of the clipping operation,
wherein a=−(1<<(BitDepth+K)) and BitDepth is a bit depth of the current video block,
wherein b=(1<<(BitDepth+K))−1, and
wherein K is a non-zero integer.