id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
72	Potential issue with CCLM specification text in VVC D2 v4	vdrugeon		"In section 8.2.4.2.8, the neighboring luma samples pY[x][y] are derived for many values of x and y, specifically x = −1..−3, y = 0..2 * nTbH − 1 for the left samples, x = 0..2 * nTbW − 1, y = −1, −2 for the top samples and x = −1, y = −1, −2 for the top left samples. However, only three sample positions are checked for availability, namely position ( xTbY − 1, yTbY ) for availL, position ( xTbY, yTbY − 1 ) for availT and position ( xTbY − 1, yTbY − 1 ) for availTL. Therefore, if availL is equal to true, I think that it only means that the sample at position ( xTbY − 1, yTbY ) is available, but not that all the other samples left are available. 
A similar issue was solved in process 8.2.4.2.2 by deriving availableN for every luma location. Should the same be done in this process?
"	defect	closed	minor	VVC D2 v5	spec	VVC D2 v4	fixed		ksuehring bbross XiangLi fbossen jvet@…