Patent ID: 11863789
Assignee: TENCENT AMERICA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for decoding video data, executable by a processor, the method comprising:
receiving video data comprising one or more tile group headers and subpictures, wherein the one or more tile group headers and subpictures include at least a picture order count, wherein the one or more tile group headers further includes a set of adaptive resolution change reference information;
parsing the video data to create symbols, wherein the symbols include one or more of: a quantization scaling matrix;
calculating an access unit count based on at least the picture order count;
receiving, in a picture parameter set, a number of subpictures in each picture and a delta value that is a difference between the number of subpictures in each picture and a number of rectangular slices in each picture;
determining that a picture, slice, or tile belongs to an access unit based on at least the access unit count; and
deriving the number of rectangular slices in a picture based on the number of subpictures and the delta value.