Systems and methods for selectively signaling different numbers of video signal information syntax structures in a parameter set

Abstract

Techniques and systems are provided for encoding and decoding video data. For example, a method of decoding video data includes accessing an encoded video bitstream encoded according to a first coding protocol. The encoded video bitstream includes one or more enhancement layers and a video parameter set defining parameters of the encoded video bitstream. The method further includes determining that a syntax element indicative of 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 a base layer is included in the encoded video bitstream or to be received from an external source. The method further includes determining the number of video signal information syntax structures included in the 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 to be received from the external source.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 62 / 015,285, filed Jun. 20, 2014, which is hereby incorporated by reference, in its entirety. This application is related to U.S. application Ser. No. ______ (Attorney Docket No. 145689U1), titled “SYSTEMS AND METHODS FOR SIGNALING INFORMATION FOR LAYER SETS IN A PARAMETER SET,” filed on the same date herewith, and U.S. application Ser. No. ______ (Attorney Docket No. 145689U2), titled “SYSTEMS AND METHODS FOR SIGNALING HYPOTHETICAL REFERENCE DECODER PARAMETERS IN A PARAMETER SET,” filed on the same date herewith, both of which are hereby incorporated herein by reference, in their entirety.FIELD[0002]The present disclosure generally relates to video coding, and more specifically to techniques and systems for selectively signaling different numbers of video signal information syntax structures in a parameter set.BACKGROUND[0003]Many devices and systems allow video data ...

AI Technical Summary

Benefits of technology

This patent describes techniques for generating and signaling information about layer sets in a video parameter set. The layer sets are self-contained and can form an independent bitstream representing video content. The parameter set includes a base part and an extension part, and the layer sets are defined in the base part. The extension part can include additional layer sets that are not defined in the base part. The signaling information includes rate information for each layer set. The patent also describes an apparatus for generating and decoding the encoded video bitstream. The technical effects of this patent include improved video content representation and efficient video coding.

Problems solved by technology

As a result, the large amount of video data that is required to meet these demands places a burden on communication networks and devices that process and store the video data.

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