Patent ID: 9674524
Date: 2017-06-06
CPC Classifications: H04N

Claim:
1. A decoder for decoding a current picture of a video stream, the decoder configured to: receive a reference picture set identifying previously decoded pictures that are indicated as reference pictures in a decoded picture buffer containing said previously decoded pictures, wherein said previously decoded pictures were decoded by the decoder, wherein said previously decoded pictures are used for subsequent decoding, and wherein said reference pictures in said reference picture set are identified by picture order count values represented by at least one bit including a least significant bit; receive said current picture together with said reference picture set for said current picture; and receive a delta picture order count most significant bit presence flag indicating whether a delta picture order count most significant bit cycle is present or not present, wherein said delta picture order count most significant bit cycle being present indicates that more than one reference picture in said decoded picture buffer have same value for the least significant bit of said picture order count, wherein an identified previous picture is one of said previously decoded pictures having a temporal ID being equal to zero, wherein said identified previous picture is not a RASL picture, wherein said identified previous picture is not a RADL picture, wherein said identified previous picture is not a sub-layer non-reference picture.