Patent ID: 11882312
Assignee: TENCENT AMERICA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of reconstructing a Network Abstraction Layer (NAL) unit for video decoding using at least one processor, the method comprising:
decoding a first syntax element having a first fixed length, the first syntax element being a binary-coded NAL unit syntax element included in a NAL unit header;
determining, based on the first syntax element, a NAL unit class comprising one or more NAL unit types, the NAL unit class being among a plurality of NAL unit classes each associated with separate set of NAL unit types;
decoding a second syntax element having a second fixed length, the second syntax element being a binary-coded NAL unit syntax element included in the NAL unit header and being different from the first syntax element; and
based on the NAL unit class being a first NAL unit class, determining a NAL unit type from among the one or more NAL unit types using a combination of the NAL unit class and the second syntax element, wherein the second syntax element being configured for indexing within a set of NAL unit types belonging to the first NAL unit class;
based on the NAL unit class bieng a second NAL unit class, determining the NAL unit type solely from the first syntax element and using information extracted from the second syntax element as a temporal identifier (TID); and
reconstructing the NAL unit based on at least the determined NAL unit type.