Although I have receivers with Enigma2, I don't use them much. That's why I don't know which image can process t2 stream. Even if I don't use receivers, if, say, the OpenATV image supports this type of stream, then besides parameters (12645 V, 327023/4, 16APSK), enter PID 64 and PLP 0. I don't know what OpenATV's menu is like for T2-MI. You need to see what and how.
It's no problem if you don't have this function, because you can't see the live stream. That's all. Instead, you can view the file with TSReader by choosing from source, i.e. File. To do this, click Ctrl and TSreader. It opens right under Sources and from there chooses File. And then, enter pid and plp as in the image below.