Opened 9 years ago

Closed 9 years ago

#668 closed defect (fixed)

HM8/WD mismatch for coeff_abs_level_greater1_flag context derivation

Reported by: pieterkapsenberg Owned by: bbross
Priority: minor Milestone: D8
Component: Text Version: D8 (J1003) d7
Keywords: Cc: bbross, wjhan, jct-vc@…

Description

In the WD, 9.3.3.1.5 the following appears:

– If this process is invoked for the first time for the current sub-block scan index i, the following applies.

  • ....
  • The variable lastGreater1Ctx is derived as follows.
    • If the current sub-block with scan index i is the first one to be processed in this subclause for the current transform block, the variable lastGreater1Ctx is set equal to 0.

However, in HM-8.0 TDecSbac::parseCoeffNxN, line 1227:

#if REMOVE_NUM_GREATER1
  UInt c1 = 1;

Looks like the init here is 1, instead of 0 like the text says.

Change History (2)

comment:1 Changed 9 years ago by DefaultCC Plugin

  • Cc bbross wjhan jct-vc@… added

comment:2 Changed 9 years ago by bbross

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

This will be fixed in JCTVC-K0030_v3 (to be released).

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These roles will be notified: Reporter, Owner, Subscriber, Participant

  • Benjamin Bross(Owner, Subscriber, Participant)
  • jct-vc@…(Subscriber)
  • karl.sharman@…(Always)
  • Karsten Suehring(Always)
  • Pieter Kapsenberg(Reporter)
  • Woo-Jin Han(Subscriber)