Opened 2 years ago

Closed 23 months ago

#1544 closed defect (fixed)

sb_coded_flag definition lacks size of a sub-block

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

Description

7.4.12.11 includes a definition of sb_coded_flag as:

sb_coded_flag[ xS ][ yS ] specifies the following for the subblock at location ( xS, yS ) within the current transform block, where a subblock is an array of transform coefficient levels:

When sb_coded_flag[ xS ][ yS ] is equal to 0, all transform coefficient levels of the subblock at location ( xS, yS ) are inferred to be equal to 0.

When sb_coded_flag[ xS ][ yS ] is not present, it is inferred to be equal to 1

This definition seems to be lacking how many coefficients are found in a sub-block. Although the 7.3.11.11 process says how to derive "numSbCoeff", I don't believe anything in the text explicitly tells you that numSbCoeff defines the number of sub-block coefficients.

Change history (1)

comment:1 Changed 23 months ago by yk

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

Thanks! Fixed in JVET-Z2005-v1.

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