Parameter sets in video coding

摘要

A video parameter set (VPS) is associated with one or more coded video sequences (CVSs). The VPS includes a VPS extension for a video coding extension. The VPS extension includes a syntax element that indicates whether a video coding tool associated with the video coding extension is enabled for a set of applicable layers of a bitstream. When the syntax element indicates that the coding tool is enabled for the applicable layers, at least a portion of the video data that is associated with the CVSs and that is associated with the applicable layers is coded using the coding tool. When the syntax element indicates that the coding tool is not enabled for the applicable layers, the video data that is associated with the CVSs and that is associated with the applicable layers is not coded using the coding tool.

主权项

1. A method of decoding video data, the method comprising:
obtaining, from a video parameter set (VPS) extension for a video coding extension, a plurality of syntax elements, the VPS extension being a syntax structure within a VPS, the VPS being a syntax structure that is applicable to one or more entire coded video sequences, each of the syntax elements indicating whether a coding tool associated with the video coding extension is enabled for a single different layer from a plurality of layers; obtaining a plurality of sequence parameter sets (SPSs), each respective SPS of the plurality of SPSs including an identifier of the VPS; decoding the video data, wherein, for each respective syntax element in the plurality of syntax elements, when the respective syntax element indicates that the coding tool is not enabled for the respective layer in the plurality of layers, no picture of the video data that is in the respective layer and refers to the VPS is coded using the coding tool.