SYSTEMS AND METHODS FOR SELECTIVELY SIGNALING DIFFERENT NUMBERS OF VIDEO SIGNAL INFORMATION SYNTAX STRUCTURES IN A PARAMETER SET

摘要

Techniques and systems for encoding and decoding video data are provided. For example, a method of decoding video data includes accessing an encoded video bitstream encoded according to a first coding protocol. An encoded video bitstream includes one or more enhancement layers and a set of video parameters that define parameters of the encoded video bitstream. The method further includes determining that a syntax element indicating a number of video signal information syntax structures provided in the encoded video bitstream is not present in the video parameter set. The method further includes determining whether the base layer is included within the encoded video bitstream or should be received from an external source. The method includes determining the number of video signal information syntax structures included in a video parameter set to be a first value or a second value based on whether the base layer is included in the encoded video bitstream or whether it should be received from an external source. further steps.