id summary reporter owner description type status priority milestone component version resolution keywords cc 581 Typos of filter coefficients array for CCLM chiaming "In ""8.4.5.2.13 Specification of INTRA_LT_CCLM, INTRA_L_CCLM and INTRA_T_CCLM intra prediction mode"", filter coefficients arrays are defined as: – The one-dimensional filter coefficients array F1 and F2, and the 2-dimensional filter coefficients arrays F3 and F4 are specified as follows. F1[ i ] with i = 0..2 (8-160) F2[ 0 ] = 1, F2[ 1 ] = 2, F2[ 2 ] = 1 (8 161) F3[ i ][ j ] = F4[ i ][ j ] = 0, with i = 0..2, j = 0..2 (8-162) – If both SubWidthC and SubHeightC are equal to 2, the following applies: F1[ 0 ] = 1, F1[ 1 ] = 1 (8-163) F3[ 0 ][ 1 ] = 1, F3[ 1 ][ 1 ] = 4, F2[ 2 ][ 1 ] = 1, F3[ 1 ][ 0 ] = 1, F3[ 1 ][ 2 ] = 1 (8-164) F4[ 0 ][ 1 ] = 1, F4[ 1 ][ 1 ] = 2, F4[ 2 ][ 1 ] = 1 (8-165) F4[ 0 ][ 2 ] = 1, F4[ 1 ][ 2 ] = 2, F4[ 2 ][ 2 ] = 1 (8-166) – Otherwise, the following applies: F1[ 0 ] = 2, F1[ 1 ] = 0 (8-167) F3[ 1 ][ 1 ] = 8 (8-168) F4[ 0 ][ 1 ] = 2, F4[ 1 ][ 1 ] = 4, F4[ 2 ][ 1 ] = 2, (8-169) However, F1[ 2 ] is nowhere used in the current spec, and there is also a typo for F3[ 2 ][ 1 ]. The issue could be fixed by: – The one-dimensional filter coefficients array F1 and F2, and the 2-dimensional filter coefficients arrays F3 and F4 are specified as follows. [[span(style=color: #FF0000, F1[ 0 ] = 2, F1[ 1 ] = 0 (8-160))]] F2[ 0 ] = 1, F2[ 1 ] = 2, F2[ 2 ] = 1 (8-161) F3[ i ][ j ] = F4[ i ][ j ] = 0, with i = 0..2, j = 0..2 (8-162) – If both SubWidthC and SubHeightC are equal to 2, the following applies: F1[ 0 ] = 1, F1[ 1 ] = 1 (8-163) F3[ 0 ][ 1 ] = 1, F3[ 1 ][ 1 ] = 4, F[[span(style=color: #FF0000, 3)]][ 2 ][ 1 ] = 1, F3[ 1 ][ 0 ] = 1, F3[ 1 ][ 2 ] = 1 (8-164) F4[ 0 ][ 1 ] = 1, F4[ 1 ][ 1 ] = 2, F4[ 2 ][ 1 ] = 1 (8-165) F4[ 0 ][ 2 ] = 1, F4[ 1 ][ 2 ] = 2, F4[ 2 ][ 2 ] = 1 (8-166) – Otherwise, the following applies: ~~[[span(style=color: #FF0000, F1[ 0 ] = 2, F1[ 1 ] = 0 (8-167))]]~~ F3[ 1 ][ 1 ] = 8 (8-168) F4[ 0 ][ 1 ] = 2, F4[ 1 ][ 1 ] = 4, F4[ 2 ][ 1 ] = 2, (8-169) " defect closed minor spec VVC D7 vB fixed ksuehring bbross XiangLi fbossen jvet@…