id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
1606	VVC v2 wrongly uses zero out block size	bbross		"In VVC v2 spec text the zero out transform block sizes Log2ZoTbWidth and Log2ZoTbHeight are used  in “9.3.4.2.4 Derivation process of ctxInc for the syntax elements last_sig_coeff_x_prefix and last_sig_coeff_y_prefix” although it was decided by the adoption of JVET-N0194 to use the full block sizes Log2TbWidth and Log2TbHeight (instead of Log2ZoTbWidth and Log2ZoTbHeight).

This bug has been introduced in v2 and should be fixed as follows:
- In residual_coding() syntax table, move the derivation of Log2FullTbWidth = log2TbWidth and Log2FullTbHeight = log2TbHeight right after Log2ZoTbHeight = Min( log2TbHeight, 5 ), i.e. before last_sig_coeff_x_prefix.
- In “9.3.4.2.4 Derivation process of ctxInc for the syntax elements last_sig_coeff_x_prefix and last_sig_coeff_y_prefix” replace ""Log2ZoTbHeight/Width"" with ""Log2FullTbHeight/Width""."	defect	closed	critical		spec		fixed		ksuehring bbross XiangLi fbossen jvet@…