Opened 5 years ago

Closed 5 years ago

#936 closed defect (fixed)

Mismatch between SW and spec on context initialization

Reported by: wzeng Owned by:
Priority: minor Milestone:
Component: spec Version: VVC D8 vB
Keywords: Cc: frederic.barbier@…, ksuehring, bbross, XiangLi, fbossen, jvet@…

Description

In VVC spec text, SliceQPy is clamped to 51.

preCtxState = Clip3( 1, 127, ( ( m * ( Clip3( 0, 51, SliceQpY ) − 16 ) ) >> 1 ) + n )


While in VTM8.0, it seems to be clamped to 63 (MAX_QP is 63).

int clippedQP = Clip3( 0, MAX_QP, qp );

Change history (1)

comment:1 Changed 5 years ago by bbross

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

Good catch, thanks!

This will be fixed in first verison of D10.

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