Transmitting and decoding speed adjusting method, system, equipment and medium

According to the sending and decoding speed adjusting method, system and device and the medium provided by the invention, the current decoding image cache region residual capacity of the decoding image cache region is acquired, and the current prediction decoding image processing speed is predicted based on the current decoding image cache region residual capacity; and adjusting the current sending and decoding speed of the to-be-decoded code stream frame according to the current predicted decoded image processing speed, indirectly judging the pressure condition of video intelligent analysis according to the residual capacity of the current decoded image cache region, and correspondingly adjusting the current sending and decoding speed so as to reduce the processing pressure of video intelligent analysis and improve the video intelligent analysis efficiency. And risks of video data loss and video intelligent analysis result loss are reduced. 本发明提出的一种送解码速度调整方法、系统、设备及介质，该方法通过获取解码图像缓存区的当前解码图像缓存区剩余容量，基于当前解码图像缓存区剩