Signaling Change in Output Layer Sets

• US 20160165252A1
• Filed: 02/10/2016
• Published: 06/09/2016
• Est. Priority Date: 04/07/2013
• Status: Active Grant

• Current Assignee: Dolby International AB (Dolby Laboratories Incorporated)
• Original Assignee: Dolby International AB (Dolby Laboratories Incorporated)
• Inventors: Deshpande, Sachin G.
• Granted Patent: US 10,097,846 B2
• Time in Patent Office: Days
• CPC Class Codes: H04N 19/172 the region being a picture, frame or field
• CPC Class Codes: H04N 19/177 the unit being a group of pictures [GOP]
• CPC Class Codes: H04N 19/30 using hierarchical techniques, e.g. scalability H04N19/63 takes precedence
• CPC Class Codes: H04N 19/423 characterised by memory arrangements H04N19/433 takes precedence
• CPC Class Codes: H04N 19/44 Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
• CPC Class Codes: H04N 19/70 characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

A system for decoding a video bitstream includes receiving a bitstream and a plurality of enhancement bitstreams together with receiving a video parameter set and a video parameter set extension. The system also receives an output layer set change message including information indicating a change in at least one output layer set.

Claims

1. A method for decoding a video bitstream comprising:

(a) receiving a base bitstream representative of a coded video sequence;

(b) receiving a plurality of enhancement bitstreams representative of said coded video sequence;

(c) receiving a video parameter set containing syntax elements that apply to said base bitstream and said plurality of enhancement bitstreams, wherein said video parameter set contains a syntax element signaling a video parameter set extension;

(d) receiving said video parameter set extension containing syntax elements related to at least one of said enhancement bitstreams;

(e) receiving an output layer set change message including information indicating a change in at least one output layer set.

2. The method of claim 1 wherein said output layer set change message is an supplemental enhancement information (SEI) message.

3. The method of claim 1 wherein said output layer set change message includes syntax removing one of said at least one output layer set.

4. The method of claim 1 wherein said output layer set change message includes syntax adding an output layer set to said at least one output layer set.

5. The method of claim 1 wherein said output layer set change message includes syntax changing an output layer set of said at least one output layer set.

6. The method of claim 3 wherein said output layer set change message includes a syntax adding an output layer set to said at least one output layer set.

7. The method of claim 6 wherein said output layer set change message includes a syntax changing an output layer set of said at least one output layer set.

8. The method of claim 4 wherein said output layer set change message includes syntax changing an output layer set of said at least one output layer set.

9. The method of claim 5 wherein said output layer set change message includes syntax removing one of said at least one output layer set.