id summary reporter owner description type status priority milestone component version resolution keywords cc 640 Fix of deltaU calculation when ADAPTIVE_QP_SELECTION is 0 wangj "When the macro ADAPTIVE_QP_SELECTION is set to 0 (default is 1), the variable 'deltaU' in function TComTrQuant::xQuant() is given by deltaU[uiBlockPos] = (Int)( ((Int64)abs(iLevel) * piQuantCoeff[uiBlockPos] - (iLevel<> qBits8 ); The calulation is incorrect because piQuantCoeff should be multiplied with piCoef, not iLevel. The correct derivation is as follows deltaU[uiBlockPos] = (Int)( ((Int64)abs(piCoef[uiBlockPos]) * piQuantCoeff[uiBlockPos] - (iLevel<> qBits8 ); A patch based on HM-7.1-2574 is provided to fix the problem." defect closed minor HM-9.1 HM HM-7.1 fixed fbossen ksuehring davidf jct-vc@…