Video processing method and device

The invention provides a video processing method and device. The video processing method comprises the following steps: selecting a first group from a plurality of pre-constructed mode groups according to gradient information of a current coding block (S110); selecting a first intra prediction mode from the first packet (S120); acquiring one or more intra prediction modes adjacent to the first intra prediction mode (S130); and determining to use the second intra prediction mode as the intra prediction mode of the current coding block based on the first intra prediction mode and the adjacent one or more intra prediction modes (S140). Therefore, the application adopts a staged rapid selection method, the first group is selected based on the gradient information of the current coding block, the optimal first intra-frame prediction mode is selected from the first group, and then the second intra-frame prediction mode is selected in a refined manner based on the first intra-frame prediction mode and the adjacent i