Patent ID: 9706223
Date: 2017-07-11
CPC Classifications: H04L,H04N

Claim:
1. A method of decoding an encoded representation of a picture in a video stream of multiple pictures, said method comprising: retrieving, using a decoder configured to decode said encoded representation of said picture, buffer description information defining at least one reference picture from a data structure included in said encoded representation of said picture; determining, based on said buffer description information, at least one picture identifier identifying a respective reference picture among said at least one reference picture as decoding reference for said picture, wherein determining said at least one picture identifier comprises determining, based on said buffer description information, at least one picture order count (POC) value identifying said respective reference picture as decoding reference for said picture; and updating a decoded picture buffer based on said at least one picture identifier, wherein updating said decoded picture buffer comprises marking as unused for reference all reference pictures that are (i) present in said decoded picture buffer and (ii) not associated with any of said at least one picture identifier determined based on said buffer description information wherein the buffer description information explicitly defines said at least one reference picture by means of said encoded representation of said picture which contains, in said data structure, information about which reference picture to use for reference during decoding, independently of the encoded representation of previous pictures in the video stream.