Coding method and coding device

The invention provides a coding method and a coding device, and the method comprises the steps: obtaining the image complexity information of each tile of n1 tiles in a current frame, the image complexity information comprises a transformation coefficient obtained after the pixel value of each tile is subjected to image kernel transformation processing, and n1 is a positive integer greater than or equal to 2; and updating quantization parameters of the n1 tiles according to the image complexity information. According to the scheme provided by the invention, the QP of each tile included in the to-be-coded image is updated or calculated according to the image complexity information, so that the coding efficiency can be improved and the hardware resource consumption can be reduced on the premise of not sacrificing the code rate control precision, and meanwhile, the flexibility of the quantization parameter can be ensured to avoid the problem that the output code rate is uncontrollable. 本申请提供编码方法和编码装置，包括：获取当前帧中的n