Opened 9 years ago

Closed 3 years ago

#1388 closed defect (fixed)

SCC text error of act qp offset addition process in 8.6.1 and 8.6.2.

Reported by: kchono Owned by:
Priority: minor Milestone:
Component: SCC text Version: SCC-3.0 (HM16.2)
Keywords: Act qp offset Cc: rajan_joshi, jct-vc@…


Act qp offset in JCTVC-T0140 was adopted in the last meeting.

It seems that JCTVC-T1005 v2 contains the following text integration errors:
(1) qPiCb and qPiCr derivations described in (8-278) and (8-279) of 8.6.1 are not modified as in JCTVC-T0140 text.
(2) qP derivations for cIdx=1 and cIdx=2 described in (8-283) and (8-284) of 8.6.2 are not modified as in JCTVC-T0140 text.

As the result, act qp offsets are additionally added to Qp'cb and Qp'cr which are already added with (non-act) qp offsets. Obviously that is not intended operation.

The above parts in 8.6.1 and 8.6.2 should be corrected according to JCTVC-T0140 text.

Change History (2)

comment:1 Changed 9 years ago by DefaultCC Plugin

  • Cc rajan_joshi jct-vc@… added

comment:2 Changed 3 years ago by karlsharman

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

1) The addition of the condition on residual_act_flag were fixed prior to publication (See v4, around eqn 8-287).

2) The removal of the max function was fixed prior to publication (See v4, eqn 8-294,295)

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