METHOD AND DEVICE FOR ENCODING/DECODING VIDEO, AND RECORDING MEDIUM FOR STORING BITSTREAM

Provided are a method and device for encoding/decoding a video. A method for decoding a video according to the present invention, comprises: a step for constructing a motion information candidate list for a current block; a step for selecting a first motion information candidate used for prediction of a first sub-block in the current block from the motion information candidate list; a step for selecting a second motion information candidate used for prediction of a second sub-block in the current block from the motion information candidate list; a step for performing inter-frame prediction on the first sub-block on the basis of the first motion information candidate to generate a prediction sample of the first sub-block; and a step for performing inter-frame prediction on the second sub-block on the basis of the second motion information candidate to generate a prediction sample of the second sub-block, wherein the first motion information candidate may be any one of candidates in a first prediction direction