Multi-screen video display method and system, and playing end and storage medium

A method for multi-screen video display, comprising:

• detecting, by a master playing terminal, whether all slave playing terminals and the master playing terminal have decoded and stored a preset number of video frames;
• after detecting that all the slave playing terminals and the master playing terminal have decoded and stored the preset number of video frames, notifying, by the master playing terminal, all the slave playing terminals to start playing;
• sending, by the master playing terminal, information of a frame to be displayed on the master playing terminal to all the slave playing terminals, to enable each of all the slave playing terminals to calculate an adaptive synchronization threshold range according to the information of the frame to be displayed on the master playing terminal and to determine whether its own playing progress is synchronized with a playing progress of the master playing terminal according to a presentation time stamp of a frame to be displayed on the slave playing terminal and the calculated adaptive synchronization threshold range, wherein the adaptive synchronization threshold range=a presentation time stamp of the frame to be displayed on the master playing terminal+an average network transmission delay of the slave playing terminal+a frame type threshold range;
• when the frame to be displayed on the master playing terminal is a non-I frame, the frame type threshold range is a first threshold range;
• and when the frame to be displayed on the master playing terminal is an I frame, the frame type threshold range is a second threshold range, the first threshold range is less than the second threshold range.

A method for multi-screen video display, comprising:

• detecting, by a master playing terminal, whether all slave playing terminals and the master playing terminal have decoded and stored a preset number of video frames;
• after detecting that all the slave playing terminals and the master playing terminal have decoded and stored the preset number of video frames, notifying, by the master playing terminal, all the slave playing terminals to start playing;
• sending, by the master playing terminal, information of a frame to be displayed on the master playing terminal to all the slave playing terminals;
• receiving, by each slave playing terminal, the information of the frame to be displayed on the master playing terminal, and calculating an adaptive synchronization threshold range according to the information of the frame to be displayed on the master playing terminal, and comparing a presentation time stamp of its own frame to be displayed with the calculated adaptive synchronization threshold range, to determine whether its own playing progress is synchronized with a playing progress of the master playing terminal, wherein the adaptive synchronization threshold range=a presentation time stamp of the frame to be displayed on the master playing terminal+an average network transmission delay of the slave playing terminal+a frame type threshold range;
• when the frame to be displayed on the master playing terminal is a non-I frame, the frame type threshold range is a first threshold range;
• and when the frame to be displayed on the master playing terminal is an I frame, the frame type threshold range is a second threshold range, the first threshold range is less than the second threshold range.