android video calling using webrtc

i want to develop simple one to one video call app like without third party sdk , without webview use webrtc only

https://play.google.com/store/apps/details?id=com.livetalk.onlinevideocall.live.talk

no use of google login

i want demo and will cross check code in ur laptop via anydesk stricitly individual reach me out my budget is only 6000inr deadline till tonight android java use only