id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
342	CTU boundary position not computed correctly for Chroma deblocking	AnandMeher		"For the Chroma longer tap deblocking, longer tap filter is currently switched off at the horizontal CTU boundaries to reduce line buffer. 

In the VTM-5.0 code, in function xEdgeFilterChroma, the position for the horizontal CTU boundary seems to be computed incorrectly, which is as follows:
pos.y % cuP.slice->getSPS()->getCTUSize() == 0
which does not take into account the Chroma re-scaling based on the Chroma format.

A possible fix could be as follows:
(pos.y % (cuP.slice->getSPS()->getCTUSize() >> ::getComponentScaleX(COMPONENT_Cb, nChromaFormat)) == 0)"	defect	closed	minor		VTM	VTM-5.0	invalid	Longer tap deblocking for Chroma	ksuehring XiangLi fbossen jvet@…