A bit (lot) late but this might be helpful for those comming across the same doubt. To open or play an ".mp4" video file from MATLAB on a Linux system, you can use the "system" function to call an external video player. A commonly available video player on Linux is "xdg-open", which opens a file with its default associated application. Here's how you can do it:
system('xdg-open videofile.mp4');
You can find moe about the same here https://in.mathworks.com/help/matlab/ref/system.html#btnrzs7-1-command
Karan
