Implicit signaling of scalability dimension identifier information in a parameter set

摘要

A system for decoding a video bitstream includes receiving a frame of the video that includes at least one slice and at least one tile and where each of the at least one slice and the at least one tile are not all aligned with one another.

主权项

1. A method for decoding a coded video sequence comprising:
receiving a video syntax set that includes information applicable to said coded video sequence; determining, based on a flag included in said video syntax set, whether a scalability dimension identifier is implicitly signaled; wherein said scalability dimension identifier specifies a scalability dimension of a particular layer of said coded video sequence, the scalability dimension being one of multiple types, including a spatial type and a quality type; in response to determining that the scalability dimension identifier is implicitly signaled, deriving the scalability dimension identifier from a network abstraction layer (NAL) unit header; decoding a base layer of a picture in the video sequence; decoding an enhancement layer based on the scalability dimension; and generating a picture to be displayed based on the base layer and the enhancement layer.