I mean, you will almost certainly be in a constant state of creating material in violation or copyright. Depending on the details of any specific copyright viol

I mean, you will almost certainly be in a constant state of creating material in violation or copyright. Depending on the details of any specific copyright violation, it may be protected by Fair-use, and the length and lack of audio will likely help in your favor. But you'd have to defend those cases individually in court to even begin to make a fair-use argument. And I dont see how you could ever win any blanket decision in your favor. With a good DMCA takedown story and compliance, you could potentially claim the copyright is responsibility of your users. And maybe you'll be too small, and the content, in general you are making too inconsequential, or even helpful (marketing wise) for anyone to care. But this is definitely be a project I would get a proper legal analysis of and have clear procedures and plans in place for any issues that may show up.