JVET-R0145 AHG 11/15: On the use of limited EGk signalling [J. Gan, C. Rosewarne (Canon)]
Only four low level syntax elements remain (cu_qp_delta_abs, palette_predictor_run, num_signalled_palette_entries, and palette_escape_val) that use the general EGk binarisation. EGk is the only non-truncated binarisation used for low level signalling. This contribution proposes to replace the use of EGk with limited EGk for the four low level syntax elements. This change in binarisation has previously occurred for residual coding and mvd coding. It is asserted that the proposed changed binarisations remove unbounded codes from low-level syntax.
Presented Thu 9 1317 UTC (chaired by JRO)
There is no problem solved by this proposal, EGk has been used practically for a long time
It is pointed out that the EGk has advantages for syntax elements that change the valid range, such as delta QP
No benefit in terms of simplification
Other experts expressed concerns about adoption
No action was taken on this.
It was later remarked by the proponents that an asserted benefit would be simplification of conformance testing.