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

Claim 8:
9. A device for encoding a video bitstream, the device comprising:
at least one memory configured to store program code; and
at least one processor configured to read the program code and operate as instructed by the program code, the program code including:
first setting code configured to cause the at least one processor to set a first flag indicating whether a constant picture size is used in a coded video sequence including a current picture;
encoding code configured to cause the at least one processor to, based on the first flag indicating that the constant picture size is used, encode the current picture without performing reference picture resampling;
second setting code configured to cause the at least one processor to, 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
performing code configured to cause the at least one processor to, 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.