Store inter coding bit costs to CU structure
Store inter coding bit costs to CU structure

To be used for calculating better coding cost later

ultravideo/kvazaar,ultravideo/kvazaar,ultravideo/kvazaar,lu-zero/kvazaar,ultravideo/kvazaar,ultravideo/kvazaar,lu-zero/kvazaar,lu-zero/kvazaar,lu-zero/kvazaar