H.264 + is a video codec developed by Hikvision, which essentially represents the H.264 codec modified for video surveillance tasks in order to increase the degree of compression without compromising the video quality. Among the features of the H.264 + codec is the elimination of a stable background, accounting for the amount of motion in a frame, compression control depending on the time of day. Eventually, all of the above allows to significantly reduce the volume of video stream.