I am totally new in this concept. I received a task in which I need to create Moodle plugin for course. In my course I have two sections where Only videos will be uploaded by teacher. I want to create a plugin to use user webcam while they are playing that video and capture the screenshot. For example, they click on play then webcam will start. so, my question is. is this possible? and where should I start doing development like in local folder? or in mod folder. I just need some guidance from where I need to start. although I have a simple core code written by myself in php and JavaScript where I can start video when user play video. but I want to integrate that into Moodle, but I don't know from where to start.
I did some research, but it shows the activity plugins should be in /mod folder but I don't know how I should start.