Signaling of long-term reference pictures for video coding

摘要

In one example, a device for decoding video data includes a video decoder configured to decode a value representative of a difference between most significant bits (MSBs) of a reference picture order count (POC) value and MSBs of a long-term reference picture (LTRP) POC value, wherein the reference POC value corresponds to a picture for which data must have been received in order to properly decode a current picture, determine the MSBs of the LTRP POC value based on the decoded value and the reference POC value, and decode at least a portion of the current picture relative to the LTRP based at least in part on the LTRP POC value. The picture for which data must have been received in order to properly decode a current picture may correspond to the current picture itself or a most recent random access point (RAP) picture.

主权项

1. A method of decoding video data, the method comprising:
decoding a value representative of a difference between most significant bits (MSBs) of a reference picture order count (POC) value and MSBs of a long-term reference picture (LTRP) POC value, wherein the reference POC value corresponds to a POC value of a current picture or a POC value of a random access point (RAP) picture that precedes the current picture in decoding order; determining the MSBs of the LTRP POC value based on the decoded value and the reference POC value; and decoding at least a portion of the current picture relative to the LTRP based at least in part on the LTRP POC value.