Hypothetical reference decoder parameter syntax structure

摘要

A video encoder signals, in an encoded video bitstream, a video parameter set (VPS) that includes a plurality of Hypothetical Reference Decoder (HRD) parameter syntax structures that each include HRD parameters. For each respective HRD parameter syntax structure in the plurality of HRD parameter syntax structures, the VPS further includes a syntax element indicating whether the HRD parameters of the respective HRD parameter syntax structure include a common set of HRD parameters in addition to a set of sub-layer-specific HRD parameter information specific to a particular sub-layer of the encoded video bitstream. The common set of HRD parameters is common to all sub-layers of the encoded video bitstream. A video decoder or other device decodes, from the encoded video bitstream, the VPS and performs an operation using the HRD parameters of at least one of the HRD parameter syntax structures.

主权项

1. A method of decoding video data, the method comprising:
decoding, from an encoded video bitstream, a video parameter set (VPS) that includes a plurality of hypothetical reference decoder (HRD) parameter syntax structures that each include HRD parameters, wherein for each respective HRD parameter syntax structure in the plurality of HRD parameter syntax structures other than the first HRD parameter syntax structure included in the VPS, the VPS further includes a syntax element indicating whether the HRD parameters of the respective HRD parameter syntax structure include a common set of HRD parameters, wherein the common set of HRD parameters is common to all sub-layers of the encoded video bitstream, and wherein the first HRD parameter syntax structure included in the VPS includes the common set of HRD parameters; and performing an operation using the HRD parameters of at least one of the HRD parameter syntax structures.