video embed modification

Hi, i need someone to do some modification on my site [login to view URL] based on adult video script. When someone embedd videos from my site, the videos they took to be with my watermark. And at the end of the video to have (like pornhub, xvideos...) the possibility to chose from "related videos" in the video player , and when you click to take you back to my site. You need to modified ffmpeg with ssh to add hard watermark, and you need to modified the embedable code.