Patent ID: 11968385
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A video encoder comprising a processor configured to:
when a picture order count (POC) value indicated in a reference picture set (RPS) corresponds to a long-term reference picture, then:
retain a marking of a reference picture in a decoded picture buffer (DPB) as a long-term reference picture when the reference picture has a POC value corresponding to the POC value indicated in the RPS; and
mark a short-term reference picture in the DPB as a long-term reference picture when the short-term reference picture has a POC value corresponding to the POC value indicated in the RPS; and

when the POC value indicated in the RPS corresponds to a short-term reference picture, then:
retain a marking of a reference picture in the DPB as a short-term reference picture when the reference picture has a POC value corresponding to a POC value indicated in the RPS; and

encode short-term pictures with variable length codes and encode long-term pictures with fixed-length codes.