大华、海康rtsp视频流格式
A.只能读取1号摄像头rtsp://admin:密码@192.168.1.64:554/cam/realmonitor?channel=1&subtype=1rtsp://admin:密码@2022@192.168.1.64:554/cam/realmonitor?channel=2&subtype=2B.1号、2号摄像头都能读取：主玛流：rtsp://admin:密码@2022@192.168.1.64:554/Streaming/Channels/101rts
