Patent ID: 8144768
Filing Date: 2012-03-27
Classification: H04N

Abstract:
1. A method of encoding a video stream, the method comprising the steps of: receiving the video stream; generating a base bitstream comprising one or more base video object planes (VOPs) using the video stream, each base VOP being associated with a base presentation time stamp (PTS) and a base decoding time stamp (DTS); and generating a first enhancement bitstream comprising one or more first enhancement VOPs using the video stream, each first enhancement VOP being associated with a corresponding base VOP, a first DTS and a first PTS, wherein the first DTS and the first PTS associated with each first enhancement VOP are selected to be equal to one another, the first PTS associated with each first enhancement VOP is selected to be equal to the base PTS associated with its corresponding base VOP, and the first DTS associated with each first enhancement VOP is selected to be equal to the base DTS associated with one of the base VOPs.