This video shows how to stream USB webcam to YouTube on Android via USB Camera app.
1) Goto https://www.youtube.com/live_dashboard and get the server URL and stream key
2) Put the server URL and stream key into RTMP Push URL and RTMP stream key fields on USB Camera app’s Settings (You can also make them into QR Code then use Scan QR Code feature to fill each blank)
3) Connect usb webcam or other devices that USB Camera app supports (e.g. EasyCap)
4) Turn on IP Camera Server from USB Camera app and check ‘RTMP Push’, the streaming will be started.
You can try USB Camera app from Google Play :
You may also interest the Pro version :