Explanation:
A：Whether you click the recording icon on the Dashcam screen or automatically record when collision occurs, it will continue to record a 30 seconds video backwards from the moment of recording and save it together with the previous video in the emergency video directory.So, for each recording, two videos are saved, the first being a standard 2 minutes, the second being a minimum of 30 seconds and a maximum of 2 minutes and 30 seconds.In order to prevent the user from finding the video when viewing the video, in addition to the emergency video directory, in the normal video directory, the video link will still be displayed in the list, to ensure that the normal video directory, the video is consistent.