the problem of jitsi is on the mobile you must use jitsi mobile app client to workwhy you don't use webRTC messeger and also for video recoder ?please check links and look if you can integrate it i think it is better then the video trasncoding and other headachthank youhttps://www.webrtc-experiment.com/https://www.webrtc-experiment.com/RecordRTC/ LiveRecording from browserhttps://www.webrtc-experiment.com/RecordRTC/simple-demos/https://rtcmulticonnection.herokuapp.com/demos/https://github.com/muaz-khan/RTCMultiConnectionhttps://rtcmulticonnection.herokuapp.com/demos/Scalable-Broadcast.htmlhttps://github.com/simplewebrtc/SimpleWebRTC