root@raspberrypi:~# lsb_release -a
No LSB modules are available.
Distributor ID:	Raspbian
Description:	Raspbian GNU/Linux 10 (buster)
Release:	10
Codename:	buster

#!/bin/bash

while true;do

START=$(date +%s000)
START=$((START + 5000))

/usr/bin/xplayctl -play -start $START -zIndex 10 -libName video -rect 0,0,960,540 -path /root/yiyezi.mp4
sleep 0.1
/usr/bin/xplayctl -play -start $START -zIndex 11 -libName video -rect 960,0,960,540 -path /root/yiyezi.mp4
sleep 0.1
/usr/bin/xplayctl -play -start $START -zIndex 12 -libName video -rect 0,540,960,540 -path /root/yiyezi.mp4
sleep 0.1
/usr/bin/xplayctl -play -start $START -zIndex 13 -libName video -rect 960,540,960,540 -path /root/yiyezi.mp4

sleep 15

done