Methods for coding an inter-layer reference picture set (RPS) and coding end of bitstream (EOB) network access layer (NAL) units in multi-layer coding

1. A method for decoding video information of a multi-layer bitstream, comprising:

determining whether a candidate inter-layer reference picture is present in the video information, wherein the video information comprises an inter-layer reference picture set (RPS) including a plurality of subsets, the candidate inter-layer reference picture being an inter-layer reference picture which has not yet been placed in an RPS subset;

in response to determining that the candidate inter-layer reference picture is not present, determining an inter-layer RPS subset to which the candidate inter-layer reference picture belongs, the determining of the inter-layer RPS subset to which the candidate inter-layer reference picture belongs being based at least in part on a view identifier of the candidate inter-layer reference picture;

indicating that no reference picture is present in the inter-layer RPS subset to which the candidate inter-layer reference picture belongs; and

decoding the video bitstream based at least in part on the indication that no reference picture is present in the inter-layer RPS subset to which the candidate inter-layer reference picture belongs.

2. The method of claim 1 , wherein the determining the inter-layer RPS subset to which the candidate inter-layer reference picture belongs is based on: i) a view identifier of a current layer, ii) the view identifier of the candidate inter-layer reference picture, and iii) a view identifier of a base layer.

3. The method of claim 1 , wherein the decoding the video information is based at least in part on a multiview video coding standard.

4. A device for decoding video information of a multi-layer bitstream, comprising:

a memory configured to store the video information; and

a processor in communication with the memory and configured to:

determine whether a candidate inter-layer reference picture is present in the video information, wherein the video information comprises an inter-layer reference picture set (RPS) including a plurality of subsets, the candidate inter-layer reference picture being an inter-layer reference picture which has not yet been placed in an RPS subset;

in response to a determination that the candidate inter-layer reference picture is not present, determine an inter-layer RPS subset to which the candidate inter-layer reference picture belongs, a determination of the inter-layer RPS subset to which the candidate inter-layer reference picture belongs being based at least in part on a view identifier of the candidate inter-layer reference picture;

indicate that no reference picture is present in the inter-layer RPS subset to which the candidate inter-layer reference picture belongs;

decode the video bitstream based at least in part on the indication that no reference picture is present in the inter-layer RPS subset to which the candidate inter-layer reference picture belongs.

5. The device of claim 4 , wherein the processor is further configured to determine the inter-layer RPS subset to which the candidate inter-layer reference picture belongs based on: i) a view identifier of a current layer, ii) the view identifier of the candidate inter-layer reference picture, and iii) a view identifier of a base layer.

6. The device of claim 4 , wherein the processor is further configured to decode the video information based at least in part on a multiview video coding standard.

7. A method for encoding video information of a multi-layer bitstream, comprising:

determining whether an access unit included in the video information includes an end of bitstream (EoB) network abstraction layer (NAL) unit;

setting a layer-identification value for the EoB NAL unit to zero in accordance with a constraint, the constraint being a restriction of all EoB NAL units within the bitstream to have a layer-identification value of zero; and

encoding the video information based at least in part on a value of zero for the layer-identification value.

8. A device for encoding video information of a multi-layer bitstream, comprising:

a memory configured to store the video information; and

a processor in communication with the memory and configured to:

determine whether an access unit included in the video information includes an end of bitstream (EoB) network abstraction layer (NAL) unit;

set a layer-identification value for the EoB NAL unit to zero in accordance with a constraint, the constraint being a restriction of all EoB NAL units within the bitstream to have a layer-identification value of zero; and

encode the video information based at least in part on a value of zero for the layer-identification value.