analysing a video stream

Hello, I connected a Set-Top-Box (IPTV-Box) with my Computer via ethernet. The IP-Box gets its signal from an antenna-cable. On my Computer I installed a software(including a videoplayer) of the box that allows me to watch the video stream. So when I am watching this stream i start a wireshark analysis. Now I want to know what kind of video stream is sent to my computer like mpeg1,2,3,4 or others. Is it possible to see this in the wireshark analysis?