A system and method for realizing multi-screen same-screen video playback

Abstract

The invention provides a system and method for realizing multi-screen video playing in a same screen. According to information like distances between a synchronous server and all playing terminals, internet speeds, and types of all the playing terminals, integration and correction are carried out and then synchronous files matching all the playing terminals and a time file are generated, and the generated synchronous files and time file, and a video file are sent to the playing terminals; the playing terminals parse the synchronous files, update the time file based on the synchronous files, and corrects video playing by using the time file, so that same-screen playing of all playing terminals is realized. Besides, the synchronous files refresh the time file at a time interval; and when the number of same-screen playing terminals changes, the synchronous files and the time file are updated, so that the playing progresses of all playing terminals are kept to be synchronous all the time.

Description

technical field [0001] The invention belongs to the technical field of same-screen display, and in particular relates to a system and method for realizing multi-screen same-screen video playback. Background technique [0002] Video playback is widely used in many fields such as publicity exhibitions and outdoor advertisements. In some occasions, multiple display screens are required to play the same video at the same pace. How to ensure the synchronous playback of videos on multiple screens is the difficulty of multi-screen display technology. . The common method of existing multi-screen display is to use a distributor or a screen splitter to realize synchronous video playback of multiple display terminals or to send video files to each playback terminal for playback through network broadcasting. The screen splitter is easily limited by the distance, and its effective transmission distance is about 50 meters. When the distance increases, the quality of the transmission sign...

AI Technical Summary

Problems solved by technology

The common method of existing multi-screen display is to use a distributor or a screen splitter to realize synchronous video playback of multiple display terminals or to send video files to each playback terminal for playback through network broadcasting. The screen splitter is easily limited by the distance, and its effective transmission distance is about 50 meters. When the distance increases, the quality of the transmission signal is not high; and the network broadcast method is used because the playback terminal receives the broadcast signal according to the order of priority. When the number of terminals is large, there will be a large delay in receiving signals, so the synchronization effect is not ideal

The prior art discloses some multi-screen playing technologies on the same screen, such as CN103517153A provides a system for realizing multi-screen playing video on the same screen, including a communication connection module, a same-screen play request module, a request processing module and a same-screen play module , but the system cannot eliminate the possible impact of the playback terminal's own hardware conditions and the network connection status between the playback terminal and the system on the synchronous video playback, and cannot truly guarantee that multiple playback terminals will play videos synchronously

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