Method and apparatus for video encoding and decoding

A method, comprising:

• decoding a syntax data element indicating whether a decoded picture buffer parameters syntax structure is present in a bitstream;
• and
• responsive to the decoded picture buffer parameters syntax structure being present, decoding a syntax data element indicating whether one or more instances of parameters are present in a decoded picture buffer parameters syntax structure, and decoding a syntax data structure representative of parameters of a decoded picture buffer based on the indication of whether one or more instances of parameters are present in a decoded picture buffer parameters syntax structure, wherein the parameters of a decoded picture buffer provide information on a buffer size, a maximum picture reorder number, and a maximum latency for one or more decoded picture.

An apparatus, comprising one or more processors configured to:

• decode a syntax data element indicating whether a decoded picture buffer parameters syntax structure is present in a bitstream;
• and
• responsive to the decoded picture buffer parameters syntax structure being present, decode a syntax data element indicating whether one or more instances of parameters are present in a decoded picture buffer parameters syntax structure, and decode a syntax data structure representative of parameters of a decoded picture buffer based on the indication of whether one or more instances of parameters are present in a decoded picture buffer parameters syntax structure, wherein the parameters of a decoded picture buffer provide information on a buffer size, a maximum picture reorder number, and a maximum latency for one or more decoded picture.

A method, comprising:

• encoding a syntax data element indicating whether a decoded picture buffer parameters syntax structure is present in a bitstream;
• and
• responsive to the decoded picture buffer parameters syntax structure being present, encoding a syntax data element indicating whether one or more instances of parameters are present in a decoded picture buffer parameters syntax structure, and encoding a syntax data structure representative of parameters of a decoded picture buffer based on the indication of whether one or more instances of parameters are present in a decoded picture buffer parameters syntax structure, wherein said parameters of a decoded picture buffer provide information on a buffer size, a maximum picture reorder number, and a maximum latency for one or more decoded picture.

An apparatus, comprising one or more processors configured to:

• encode a syntax data element indicating whether a decoded picture buffer parameters syntax structure is present in a bitstream;
• and
• responsive to the decoded picture buffer parameters syntax structure being present, encode a syntax data element indicating whether one or more instances of parameters are present in a decoded picture buffer parameters syntax structure, and encode a syntax data structure representative of parameters of a decoded picture buffer based on the indication of whether one or more instances of parameters are present in a decoded picture buffer parameters syntax structure, wherein said parameters of a decoded picture buffer provide information on a buffer size, a maximum picture reorder number, and a maximum latency for one or more decoded picture.