Hypothetical reference decoder parameter syntax structure

A video decoding device comprising:

• means for 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
• means for performing an operation using the HRD parameters of at least one of the HRD parameter syntax structures.

A non-transitory computer-readable storage medium that stores instructions that, when executed by a video decoding device, configure the video decoding device to:

• decode, 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
• perform an operation using the HRD parameters of at least one of the HRD parameter syntax structures.

A method of encoding video data, the method comprising:

• generating 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 an encoded video bitstream comprising encoded pictures of the video data, and wherein the first HRD parameter syntax structure included in the VPS includes the common set of HRD parameters;
• and
• signaling the VPS in the encoded video bitstream.

A video encoding device comprising:

• means for generating 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 an encoded video bitstream that comprises encoded pictures of video data, and wherein the first HRD parameter syntax structure included in the VPS includes the common set of HRD parameters;
• and
• means for signaling the VPS in the encoded video bitstream.

A non-transitory computer-readable storage medium that stores instructions that, when executed by a video encoding device, configure the video encoding device to:

• generate 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 an encoded video bitstream that comprises encoded pictures of video data, and wherein the first HRD parameter syntax structure included in the VPS includes the common set of HRD parameters;
• and
• signal the VPS in the encoded video bitstream.