DECODING AND ENCODING OF PICTURES OF A VIDEO SEQUENCE

摘要

The embodiments reduce output delay for pictures by determining after a current picture has been decoded and stored in a decoded picture buffer, DPB, a number of pictures in the DPB that are marked as needed for output. This number is compared, after a current picture has been decoded and stored in the DPB against a value derived from at least one syntax element present or to be present in a bitstream representing pictures of a video sequence. If this number is greater than the value a picture, which is the first picture in output order, of the pictures in the DPB that are marked as needed for output is preferably output and marked as not needed for output.

主权项

1. A method performed by a decoder, said method comprises:
determining, after a current picture has been decoded and stored in a decoded picture buffer a number of pictures in said decoded picture buffer that are marked as needed for output; comparing said number against a value sps_max_num_reorder_pics[HighestTid], wherein HighestTid specifies a highest layer that is decoded by said decoder of a video sequence; outputting a picture, which is a first picture in output order of said pictures in said decoded picture buffer that are marked as needed for output, responsive to said number being greater than said value; and marking said picture as not needed for output responsive to said number being greater than said value.