LocalVideo Module - duration question

Morning/afternoon folks,

Playing around with the LocalVideo module as a solution to a problem I’ve got. It should work well, but I do have a question. I’m wanting to set it up so users can change their specific files as required. However, these videos will change in duration, as they are generated from PowerPoint presentations converted to a video format for ease of display.
What’s the easiest way to have the layout automatically assign the duration to match the video length? Or is there a way to do this?