id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
1368	Interpolation filters for affine RPR	bheng		"The interpolation filter selection for affine interpolation with RPR is incorrect.  

   –	If MotionModelIdc[ xSb ][ ySb ] is greater than 0, and sbWidth and sbHeight are both equal to 4, and scalingRatio[ 0 ] is greater than 28 672, luma interpolation filter coefficients fLH[ p ] are specified in Table 31.

   –	Otherwise, if MotionModelIdc[ xSb ][ ySb ] is greater than 0, and sbWidth and sbHeight are both equal to 4, and scalingRatio[ 0 ] is greater than 20 480, luma interpolation filter coefficients fLH[ p ] are specified in Table 32.


Table 32 and Table 31 should be swapped above, for both the horizontal and vertical filter selection.

Scaling ratios above 28672 use m_affineLumaFilterRPR2 in VTM, which corresponds to Table 32, and vice versa.

"	defect	closed	minor		spec	VVC D10 vG	fixed		ksuehring bbross XiangLi fbossen jvet@…