Video encoding method, video decoding method, video encoding apparatus, video decoding apparatus, video encoding program, and video decoding program

A method of decoding encoded pictures, the method comprising computer implemented steps performed by a processor of a computer system to implement:nreceiving the encoded pictures and delay time syntaxes associated respectively with the encoded pictures, wherein the delay time syntaxes represent time periods defined respectively for the encoded pictures;decoding the encoded pictures into decoded pictures; andholding at least some of the decoded pictures in a decoded picture buffer respectively for time periods represented by the delay time syntaxes associated with the at least some of the decoded pictures before outputting the at least some of the decoded pictures from the decoded picture buffer for display, wherein the decoded picture buffer holds at least one decoded picture used for reference to decode at least one of the encoded pictures.

A decoding apparatus for decoding encoded pictures, comprising:na receiver configured to receive the encoded pictures and delay time syntaxes associated respectively with the encoded pictures, wherein the delay time syntaxes represent time periods uniquely defined respectively for the encoded pictures;a decoder configured to decode the encoded pictures into decoded pictures; andan output control configured to hold at least some of the decoded pictures in a decoded picture buffer respectively for time periods represented by the delay time syntaxes associated with the at least some of the decoded pictures before outputting the at least some of the decoded pictures from the decoded picture buffer for display, wherein the decoded picture buffer holds at least one decoded picture used for reference to decode at least one of the encoded pictures.