Video synchronization control method and device based on public time axis, terminal and medium

The invention discloses a video synchronization control method and device based on a public time axis, a terminal and a medium. The method comprises the steps that video source adding information of a user is received, a synchronization management model is constructed, and the starting time and the ending time of the public time axis and the rendering time period of a video source are updated; judging whether the video source information is a first path of request stream, and if so, taking the video starting time as the video playing starting time; if not, acquiring a current timestamp of a public time axis, and assigning the current timestamp as the video playing starting time after the current timestamp is delayed for a preset time; and according to the synchronization management model, carrying out time progress synchronization processing on the video source information and the public time axis so as to control synchronous playing of the video. Therefore, according to the embodiment of the invention, the p