The Joint Collaborative Team on Video Coding (jct-vc) of itu-t wp3/16 and iso/iec jtc 1/ sc 29/ wg 11 held its tenth meeting during 11-20 July 2012 at the City Conference Centre (ccc), a k. a

5.12.10Planning for 3D and SVC extensions

Discussed Tuesday 17th 1700 (jointly between JCT-VC and JCT-3V).

It was asked what the reserved 6 bits be used for. This would be a layer ID, for which the VPS would identify the purpose. Within that concept, either:

• 
  There would be a partioning of the 6 bits into distinct bit fields – e.g., dependency ID and quality ID and view ID and depth flag
  
  • 
    Combining the 6 bits with the 3 bits currently assigned to temporal ID would allow further flexibility.
    
• 
  The mapping of a value of the 6 bits to that information would be a general LUT in the VPS.
  

It was suggested that both approaches could actually be used – e.g., controlled by a flag.

It was suggested that it would be easier to keep some bits as reserved when using the first approach.

The base spec does not necessarily need to have any of this defined, except for a scheme that would combine the 6 bits with the temporal ID.

The 3V design has some scheme – but it is not documented.

A BoG (Y.-K. Wang) was asked to produce a "straw man" for a flexible approach – particularly focusing on the 2nd method – and to collect in the document some possible alternatives.
JCT-3V documents that are suggested to be relevant:

• 
  A0115 / J0432 does not actually propose a change of the NUH of the base spec
  
• 
  A0021 – does not affect base layer
  
• 
  A0099 (also submitted as JCT-VC doc but not discussed there)
  
• 
  A0121 / J0257
  
• 
  A0117, A0118 – does not affect base layer
  
• 
  A0026
  

JCT2-A0115/m26102 3D-HLS: On NAL Unit Header and Video Parameter Set Design for HEVC 3DV [B. Choi, J. Kim, J. Park (Samsung)]

JCT2-A0021/m26089 3D-HEVC HLS: Inter-layer SPS Prediction [Thomas Rusert (Ericsson)]

JCT2-A0099/m26054 3D-HLS: Video parameter set for 3D-HEVC [Y.Chen, Y.-K. Wang (Qualcomm)]

JCT2-A0121/m26214 3D-HLS: Design of the Video Parameter Set for 3D-HEVC [Robert Skupin, Valeri George, Thomas Schierl (Fraunhofer HHI)] [late]

JCT2-A0117/m26105 3D-HLS: On Random Access Pictures [B. Choi, J. Kim, J. Park (Samsung)]

JCT2-A0118/m26107 3D-HLS: On View Layer Switching [B. Choi, J. Kim, J. Park (Samsung)]

JCT2-A0026/m26097 3D-HLS: On Slice Header and Parameter Set [B. Choi, J. Kim, J. Park (Samsung)]