1. A system, comprising: an electronic device of a decoder, the electronic device configured to: receive a first layer bitstream; receive a second enhancement layer bitstream corresponding to the first layer bitstream; determine a value of a motion vector infer control signal in the second enhancement layer bitstream; responsive to determining that the value of the motion vector infer control signal is equal to a predetermined value, bypassing use of a motion vector predictor list of the second enhancement layer bitstream for a current prediction unit of the second enhancement layer bitstream and decoding the current prediction unit using a motion vector of the first layer bitstream; and responsive to determining that the value of the motion vector infer control signal is not equal to said predetermined value, using the motion vector predictor list for the current prediction unit.