In 7.3.8.10 Transform unit syntax:

If log2TrafoSize > 2, when residual_coding() is invoked for cb and cr, the 'log2TrafoSize' argument is set to same size as for luma). For 4:2:0, this would result in the chroma transform being the same size as the luma transform.

Instead: If log2TrafoSize > 2, residual_coding() should be invoked with 'log2TrafoSize - 1', as the chroma transform size should be half the luma transform size for 4:2:0 when luma transform size is > 4x4.

7.3.8.8 Transform tree syntax

When ChromaArrayType is equal to 2, the coded block flag for the lower square block should only present when the RQT is not further split.

Therefore, the two instances of the following condition:

if( ChromaArrayType = = 2 && split_transform_flag[ x0 ][ y0 ][ trafoDepth ] )

Should be replaced with:

if( ChromaArrayType = = 2 && !split_transform_flag[ x0 ][ y0 ][ trafoDepth ] )

Hi, In chapter 8.5.2.2.3.2, weighted predictions is performed according to LumaWeightLX and ChromaWeightLX.

In chapter 7.4.5.4 those values are defined by:

"The variable LumaWeightL0[ i ] is specified by (1 << luma_log2_weight_denom ) + delta_luma_weight_l0[ i ]. When luma_weight_l0_flag[ i ] is equal to 1, the value of delta_luma_weight_l0[ i ] shall be in the range of −128 to 127, inclusive. When luma_weight_l0_flag[ i ] is equal to 0, LumaWeightL0[ i ] is inferred to be equal to 2^{luma_log2_weight_denom for RefPicList0[ i ]."}

I suspect a typo here. Is the following more accurate ? :

"The variable LumaWeightL0[ i ] is specified by (1 << luma_log2_weight_denom ) + delta_luma_weight_l0[ i ]. When luma_weight_l0_flag[ i ] is equal to 1, the value of LumaWeightL0[ i ] shall be in the range of −128 to 127, inclusive. When luma_weight_l0_flag[ i ] is equal to 0, LumaWeightL0[ i ] is inferred to be equal to 2^{luma_log2_weight_denom for RefPicList0[ i ]."}

Same remark for ChromaWeightLX definition. Regards, Alexis