How to find camera tunnel in source code

I want to receive all the video of all participants when the participant open the camera and save it into file. How i can find source code contains video source of all participants joining the meet?

Jitsi Meet is a complex application, that doesn’t happen in a single file. What are you trying to accomplish, to record each video stream individually or to record the meeting as a whole? Locally or remotely?

i want to record each video stream individually and locally

That’s not going to be easy nor cheap in CPU terms.

You’ll need to modify the app to request the quality you want (in code, because we adjust it to match the available view port) and then use a MediaRecorder interface to do the recording for each stream.

Search for how we handle the TRACK_ADDED action throughout the code.