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

Claim 9:
10. A computer system for decoding video data, the computer system comprising:
one or more computer-readable non-transitory storage media configured to store computer program code; and
one or more computer processors configured to access said computer program code and operate as instructed by said computer program code, said computer program code including:
first receiving code configured to cause the one or more computer processors to receive 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;
first parsing code configured to cause the one or more computer processors to parse the video data to create symbols, wherein the symbols include one or more of: a quantization scaling matrix;
first calculating code configured to cause the one or more computer processors to calculate an access unit count based on at least the picture order count;
second receiving code configured to cause the one or more computer processors to receive, 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;
first determining code configured to cause the one or more computer processors to determine that a picture, slice, or tile belongs to an access unit based on at least the access unit count; and
deriving code configured to cause the one or more computer processors to derive the number of rectangular slices in a picture based on the number of subpictures and the delta value.