weightCostLuma    523 source/encoder/slicetype.cpp     origscore = minscore = weightCostLuma(fenc, ref, wp);
weightCostLuma    541 source/encoder/slicetype.cpp     s = weightCostLuma(fenc, ref, wp);
weightCostLuma     95 source/encoder/slicetype.h     uint32_t weightCostLuma(Lowres& fenc, Lowres& ref, WeightParam& wp);