RDCOST           1010 source/common/quant.cpp                     int64_t curCost = RDCOST(d, sigCoefBits + levelBits);
RDCOST           1036 source/common/quant.cpp                     int64_t curCost0 = RDCOST(d0, sigCoefBits + levelBits0);
RDCOST           1041 source/common/quant.cpp                     int64_t curCost1 = RDCOST(d1, sigCoefBits + levelBits1);