id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
216	Bug in Alpha bits of chroma from luma mode	jlchen		"In the current implementation, when (alpha >63 or <=-64), the is down-scaled with 
""a = a >> (6-n);""  (On Line 1434 @ TComPrediction.cpp )
This operation should be replaced by ""a = a >> (9-n);""

With this bug fix, Around Avg. -0.5% uv BD rate saving is achieved.
"	defect	closed	minor		HM	HM-4.0	fixed	chroma from luma mode	frank fbossen ksuehring davidf jct-vc@…