It's fantastic to see your enthusiasm for implementing peer-to-peer video chat into your application. While I don't have the specific source code you're looking for, I'd like to offer some suggestions to help you on your quest.
Exploring platforms like Emerald could provide you with valuable insights and ideas for your video chat feature. Although it may not provide the exact source code, it can give you a sense of how anonymous video chat with random people works and how you can incorporate similar functionality into your app.