Capturing video and/or audio off the web page

[denisv]

Hello, everyone.

I'm trying to develop an automatic bot for recording battles in browser canvas-based online game.
So far I've tried chrome plugin, and while I succeeded in capturing video off the canvas, the issue is with audio.
The game uses Howler.js to mix audio to play various sounds at the same time and options to automate audio capture with chrome extensions is very limited, because it actually requires user interaction, which is a no go to me.

So I was wondering if there are any ways to intercept audio/video "as is" being played on a webpage using CEF sharp, considering I'll do it in a on-screen buffer, so no off-screen shenanigans.
I suppose I can record video using JS I'll inject into the page, so if it's possible to record only audio it will help me a lot as well.

Thanks in advance,
Denis.

[amaitland]

https://cefsharp.github.io/api/113.1.x/html/P_CefSharp_IWebBrowser_AudioHandler.htm