#1357 closed defect (fixed)

Context derivation for last_sig_coeff_x_prefix with ISP TU size 2

Reported by: bheng Owned by:
Priority: minor Milestone:
Component: spec Version: VVC D10 vE
Keywords: Cc: ksuehring, bbross, XiangLi, fbossen, jvet@…

Description

For ISP, I believe the offsetY table in Equation (1525) needs another 0 entry for size 2 TUs.

If cIdx is equal to 0, ctxOffset is set equal to offsetY[ log2TbSize − 2 ] ...

offsetY[] = {0, 3, 6, 10, 15}

Otherwise the table index "log2TbSize − 2" will be negative. I would suggest the following:

If cIdx is equal to 0, ctxOffset is set equal to offsetY[ log2TbSize − 1 ] ...

offsetY[] = {0, 0, 3, 6, 10, 15}

Change history (1)

comment:1 Changed 14 months ago by bbross

  • Resolution set to fixed
  • Status changed from new to closed

Right, thanks! Will be fixed in JVET-S2001-vH as you suggested.

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