Video stream processing method and device based on CML video interface, and storage medium

The invention discloses a video stream processing method and device based on a CML video interface and a storage medium, and belongs to the technical field of video storage. The method comprises the following steps: initializing a system; a CML video stream data processing module is started, video stream data input and output of the CML coding and decoding chip are controlled according to the working mode, frame decoding structure processing and image frame integrity processing are carried out on the input video stream data, frame adding structure processing and output frame rate control are carried out on the output video stream data, and read-write operation of the video stream data in a DDR cache module is controlled; respectively establishing a CML video stream data storage thread and a CML video stream data lead-out thread, wherein the CML video stream data lead-out thread is used for realizing two functions of downloading and simulation output according to an instruction. The blank of integration of sto