IRAP access units and bitstream switching and splicing

摘要

In one example, a device for coding video data includes a video coder configured to code an intra random access point (IRAP) picture of a partially aligned IRAP access unit of video data, and code data that indicates, when performing random access from the partially aligned IRAP access unit, at least one picture of a video coding layer that is not correctly decodable. When the video coder comprises a video decoder, the video decoder may skip decoding of the pictures that are not correctly decodable, assuming random access has been performed starting from the partially aligned IRAP access unit.

主权项

1. A method of decoding video data, the method comprising:
decoding data that indicates, when performing random access from a partially aligned intra random access point (IRAP) access unit, at least one picture of a video coding layer that is not correctly decodable; decoding an IRAP picture of the IRAP access unit; and decoding video data based on the data that indicates the at least one picture that is not correctly decodable and based on the IRAP picture, comprising:
identifying a first set of one or more pictures in the IRAP access unit that the data indicates are not correctly decodable;for each picture in the first set of pictures, based on reference picture sets for the pictures in the first set of pictures, generating respective second sets of unavailable reference pictures;marking the reference pictures of the second sets of reference pictures as either short-term or long-term reference pictures as indicated in the respective reference picture set; anddecoding each picture in the first set of pictures.