5.8.2Contributions
JCTVC-J0066 On Cross-Slice Deblocking Edge Ordering [P. Kapsenberg (Intel)]
This contribution claims that the deblocking edge processing order, which is specified to be vertical edges first followed by horizontal edges for the whole picture, requires slice header data from potentially many previous slices to be saved in order to successfully deblock a slice. A change is proposed that mandates that the relevant slice header syntax elements be the same for all slices in a picture.
One expert points out that instead of storing the offset data and QP values at each slice boundary, an implementation might potentially store the final computed offset values.
Storage on LCU basis: would be 10 bit per LCU.
The reduction in memory is not large – we would rather retain the flexibility that slice-wise adaptation provides.
No action.
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