Opened 12 years ago

Closed 12 years ago

#802 closed defect (fixed)

7.3.8.10 incorrect log2TrafoSize passed for chroma transform

Reported by: crosewarne Owned by: bbross
Priority: major Milestone:
Component: Text Version: D8 (K0030) v4
Keywords: Cc: bbross, wjhan, jct-vc@…

Description

In 7.3.8.10 Transform unit syntax:

If log2TrafoSize > 2, when residual_coding() is invoked for cb and cr, the 'log2TrafoSize' argument is set to same size as for luma). For 4:2:0, this would result in the chroma transform being the same size as the luma transform.

Instead:
If log2TrafoSize > 2, residual_coding() should be invoked with 'log2TrafoSize - 1', as the chroma transform size should be half the luma transform size for 4:2:0 when luma transform size is > 4x4.

Change History (2)

comment:1 Changed 12 years ago by DefaultCC Plugin

  • Cc bbross wjhan jct-vc@… added

comment:2 Changed 12 years ago by bbross

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

This is fixed in JCTVC-K1003_v10.

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  • Benjamin Bross(Owner, Subscriber, Participant)
  • Chris Rosewarne(Reporter)
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  • Karsten Suehring(Always)
  • Woo-Jin Han(Subscriber)