Organisation internationale de normalisation

7Joint discussion with MPEG requirements

7.1SVC bit depth, gamut, and chroma format scalability

Remarks made in this discussion include the following:

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  How ready is the market for such a thing?
  
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  Display technology development is not mature.
  
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  Need ability to demonstrate benefits clearly.
  
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  Need good testing conditions for experiments, etc.
  
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  Need display capability for standard development.
  
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  SVC would be just an efficiency improvement of something that can be done already in another way.
  

7.2MVC profiles and levels

JVT-Z049-B was reviewed and the following topics were further discussed with decisions as recorded below:

Use a constraint set flag with Main/High profile values to indicate compatibility with MVC. JVT decision: Agreed.
How do we specify the memory capacity? Use a fixed multiplier of buffering capacity and maximum ref_idx value, associated with a nominal number of views expected in the profile. The fixed multiplier should be 2. JVT decision: Agreed.
View random access friendliness constraint / parallel-processing friendliness constraint: Editors to put their best effort into the draft – others can review and comment as things move forward. JVT decision: Agreed.
Should we have a slice size constraint like we have in the "professional" profiles? Yes. JVT decision: Agreed.