id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
86	Potential issue with reference sample filtering process in VVC D2 v4	vdrugeon		"In the function IntraPrediction::useFilteredIntraRefSamples in VTM-2.0.1, when PDPC is enabled, there is the following condition to decide if the reference samples are filtered or not:
if (dirMode == PLANAR_IDX)
  {
    return tuArea.blocks[compID].width * tuArea.blocks[compID].height > 32 ? true : false;
  }

I cannot find this condition within the current VVC draft when determining if the reference samples should be filtered or not. Is this missing?

Assuming that it is indeed missing, I think that the following text added to section 8.2.4.2.4 Reference sample filtering process when deriving the variable filterFlag should fix the problem:
- If predModeIntra is equal to INTRA_PLANAR, the following applies:
	- If nTbW * nTbH > 32, filterFlag is set equal to 1
	- Otherwise, filterFlag is set equal to 0

Could you please check the issue and the proposed fix?
"	defect	closed	minor	VVC D2 v6	spec	VVC D2 v5	fixed		ksuehring bbross XiangLi fbossen jvet@…