Ever had the need to have five or six ffplay windows running on screen at the same time and in specified places? Well after much reading of a manual page and trial and error for placement I came up with this script on PureOS linux. I've migrated most of my boxes over to fully fsf approved os's now. More info on PureOS here https://www.pureos.net/ and list of FSF approved Linux distros here https://www.gnu.org/distros/free-distros.html .
Its taken a while for me to get to this stage and I had to abandon the idea of using a non systemd based distro like Gnuinos and I really don't have the time to install Parabola which though good can be a little haphazard and no longer has an up to date Live Lxde version which for most people is the easiest way of running and installing ( I've installed from both the live lxde version and the cli installation version and the cli install is just antiquated and painful ) so PureOS it is . I had tried Trisquel but as great as it is it doesnt allow for installing python3-pip without workarounds, I get the argument that python3-pip is problematic but as PureOS allows me to install it PureOS it is .
Below is the script for opening multiple windows on a linux system running PureOS ( though it should work in other linux distros with a recent ffmpeg installed) on ICEWM - adjust window size and position for your screen size - this is for 1366x768)
#! /bin/bash
#./background.sh &
ffplay -f x11grab -follow_mouse centered -framerate 5 -video_size 1280x720 -i :0.0 &
# top left hand corner
ffplay -left 0 -top 0 -f x11grab -follow_mouse centered -framerate 5 -video_size 320x288 -i :0.0 &
# top right hand corner
ffplay -left 1035 -top 0 -f x11grab -follow_mouse centered -framerate 5 -video_size 320x288 -i :0.0 &
# bottom left hand corner above toolbar
ffplay -left 0 -top 420 -f x11grab -follow_mouse centered -framerate 5 -video_size 320x288 -i :0.0 &
# bottom right corner
ffplay -left 1035 -top 420 -f x11grab -follow_mouse centered -framerate 5 -video_size 320x288 -i :0.0 &
# centre large 640x480
#ffplay -f x11grab -follow_mouse centered -framerate 5 -video_size 640x480 -i :0.0 &
# centre small
ffplay -f x11grab -follow_mouse centered -framerate 5 -video_size 320x288 -i :0.0
