Inter-frame prediction method, video coding method, electronic equipment and storage medium

The invention discloses an inter-frame prediction method, a video coding method, electronic equipment and a storage medium, and the method comprises the steps: dividing a current block into a plurality of sub-blocks, defining a first preset number of control points, and constructing a first candidate list according to the motion vector of an adjacent coded block of the current block; when the first number of the motion vector candidate groups in the first candidate list is smaller than a second preset number, a second candidate list is constructed from the time-space domain, the second candidate list comprises a second number of motion vector candidate groups, and the sum of the second number and the first number is smaller than or equal to the second preset number; and obtaining a final motion vector of each sub-block by utilizing the first candidate list and the second candidate list. Wherein the product of the width and the height of the current block is greater than or equal to a preset threshold. Visibly