View content of android screen from linux PC

Is it possible to view content of Android screen from PC running Linux over LAN? VNC should works here, but I'm looking for something more real-time, so that video content can be viewed smoothly from linux PC. I found an miracast protocol which can possibly fits into my scenaro, but it requires wireless connection from both ends, where in my deployment, android device (TV box) is connected via LAN. Any suggestion?