I bought your app for fpv.
I have a Homtom HT17 phone with mediatek mt 6737 chip.
easycap grabber (with UTV007 chip) is connected to the phone with a otg cable with external USB power.
Easycap viewer get the grabber but the display show only snow.
I test the grabber on my computer and it work (I see my cam video)

So do you know what's happen? is there a bug with mediatek chip? do you have a plan to solve it?
(perhaps I could help you I an electronic technician with linux knowledge)

Best Regards

Aix en Provence, France