id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
938	8.4.4.2.2 : Wrong value set for chroma sample substitution when all p[] pixels are marked as not available	Jing-Jing Chung	bbross	"In chapter 8.4.4.2.2, the substitution is described as following :

""The values of the samples p[ x ][ y ] with x = −1, y = −1..nT*2−1 and x = 0..nT*2−1, y = −1 are modified as follows: 
–	If all samples p[ x ][ y ] with x = −1, y = −1..nT*2−1 and x = 0..nT*2−1, y = −1 are marked as ""not available for intra prediction,"" the value ( 1 << ( '''BitDepthY''' − 1 ) ) is substituted for the values of all samples p[ x ][ y ].""

This is applied for luma and chroma pixels.
For chroma pixels, I think the value to be used should be : ( 1 << ( '''BitDepthC''' − 1 ) )

"	defect	closed	minor	D9	Text	D9 (K1003) v13	fixed		bbross wjhan jct-vc@…