Patent ID: 9706218
Date: 2017-07-11
CPC Classifications: H04N

Claim:
1. A mobile device comprising a decoder for managing reference pictures to be used for decoding an encoded representation of a picture of a video sequence, the decoder configured to decode a reference picture set received from an encoder, wherein the reference picture set comprises information of the reference pictures to be kept in a decoded picture buffer and to decode a Picture Order Count (POC) value indicated in the reference picture set, the decoder comprising a processor configured to: determine if the POC value indicated in the reference picture set corresponds to a short-term reference picture or to a long-term reference picture; keep, when there is a long-term reference picture in the decoded picture buffer with a POC value corresponding to the POC value indicated in the reference picture set and the POC value indicated in the reference picture set corresponds to a long-term reference picture, the long-term reference picture in a decoded picture buffer as a long-term reference picture; mark, when there is a short-term reference picture in the decoded picture buffer with a POC value corresponding to the POC value indicated in the reference picture set and the POC value indicated in the reference picture set corresponds to a long-term reference picture and there is not a long-term reference picture in the decoded picture buffer with a POC value corresponding to the POC value indicated in the reference picture set, the short-term reference picture in the decoded picture buffer as a long-term reference picture and keeping it in the decoded picture buffer; and keep, when there is a short-term reference picture in the decoded picture buffer with a POC value corresponding to the POC value indicated in the reference picture set and the POC value indicated in the reference picture set corresponds to a short-term reference picture, the short-term reference picture in the decoded picture buffer as a short-term reference picture.