Patent ID: 11871013
Assignee: TENCENT AMERICA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A non-transitory computer-readable medium storing instructions, the instructions comprising: one or more instructions that, when executed by one or more processors of a device for encoding a video bitstream, cause the one or more processors to:
set a first flag indicating whether a constant picture size is used in a coded video sequence including a current picture;
based on the first flag indicating that the constant picture size is used, encode the current picture without performing reference picture resampling;
based on the first flag indicating that the constant picture size is not used, set a second flag indicating whether a conformance window size is signaled; and
based on the second flag indicating that the conformance window size is signaled:
set the conformance window size, and
signal a resampling ratio between the current picture and a reference picture based on the conformance window size.