JVET-AP0167 AHG9: Fixes to the Scalability Dimension Information SEI message [J. Chen, Y. Ye (Alibaba)]

This contribution is to fix the identified issues in the scalability dimension information SEI message extension for confidence map. The following three fixes are proposed:

1. Refine the value range of sdi_num_associated_layers[i] depending on sdi_aux_id[ i ] to make it more precise.
2. Define interface arrays for the width and height of each layer, and constrain the confidence map layer not to exceed its associated layer in width or height.
3. Define an interface variable for the bit depth of the confidence map layer.

For item 1, it was suggested to also address the unspecified values of sdi_aux_id[ i ].

Agreed for item 1, with addition for unspecified values.

For item 2, see notes for JVET-AP0098.

Neural-network post-filter / related URIs (NNPFC / NNPFA) SEI messages (8)

Contributions in this area were discussed during 1500–1710 on Sunday 26 April 2026 (chaired by J. Boyce).

JVET-AP0130 in 4.3 is also related.

JVET-AP0167 AHG9: AHG9: Fixes to the Scalability Dimension Information SEI message

NNPF