Opened 13 years ago

Closed 12 years ago

#277 closed defect (fixed)

Incoherency between HM and WD on intra_chroma_pred_mode

Reported by: sirond Owned by: bbross
Priority: major Milestone:
Component: Text Version: D6 (H1003) dI/dJ/dK
Keywords: Cc: bbross, wjhan, jct-vc@…

Description

In WD, intra_chroma_pred_mode syntax element is in prediction_unit() which implies that in case of an intra_NxN PU, there are four intra_chroma_pred_mode.
In HM (see TDecEntropy::decodePredInfo), there is only one intra_chroma_pred_mode in such a case.

I don't know who is right or wrong...

Change History (4)

comment:1 Changed 13 years ago by DefaultCC Plugin

  • Cc bbross wjhan jct-vc@… added

comment:2 Changed 13 years ago by bbross

  • Version changed from WD5 (G1103) d2 to D6 (H1003) dG

Revise when both HM6 and D6 are available.

comment:3 Changed 13 years ago by bbross

  • Version changed from D6 (H1003) dG to D6 (H1003) dI/dJ/dK

The draft text is wrong. Lets a assume a minimum coding block size of 8x8, this would lead to four 2x2 chroma predictions.

Here, the same as for transform blocks should apply.

This can be revised together with ticket 459.
​http://hevc.kw.bbc.co.uk/trac/ticket/459

comment:4 Changed 12 years ago by bbross

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

Fixed in JCTVC-I1003_d8 with integration of JCTVC-I0302.

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  • Benjamin Bross(Owner, Subscriber, Participant)
  • Didier SIRON(Reporter)
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  • karl.sharman@…(Always)
  • Karsten Suehring(Always)
  • Woo-Jin Han(Subscriber)