Patent ID: 11877012
Assignee: SHARP KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for determining a reference index for a reference picture list, the method comprising:
decoding a reference picture list structure in a sequence parameter set or a slice header;
decoding a reference index active override flag in the slice header, based on a slice type being a P slice type or a B slice type, wherein the reference index active override flag specifies that a first number of reference index active syntax element is present for a P slice and a B slice or a second number of reference index active syntax element is present for a B slice; and
decoding the second number of reference index active syntax element in the slice header, in a case that a number of entries in the reference picture list structure is greater than 1,
wherein a value of the first number of reference index active syntax element is inferred to be equal to a first value, in a case that (i) a slice type of a current slice is the B slice type, (ii) a value of the reference index active override flag is equal to a second value, and (iii) the first number of reference index active syntax element is not present.