Provided are a video processing method and apparatus, and a device and a storage medium. The method comprises: when it is detected that an editing reference track of a video to be processed moves out of a video editing window, displaying a mask in a bottom region of the video editing window, wherein the editing reference track comprises a video track and/or an audio track; and then, on the basis of a time axis on the video editing window, displaying, on the mask, the editing reference track of said video, wherein the editing reference track displayed on the mask is used for assisting a user with editing said video in the video editing window.