In this scenario, do you have priority over the vehicle approaching from the right?

In the video you are driving along a residential street, pass a pedestrian crossing and approach a junction without signs that regulate right of way; a black car is coming out of the street on the right. You do not have right of way over it. The answer is: no.

The Road Traffic Act states that the driver of a vehicle, when approaching a junction, is obliged to exercise particular caution and give way to a vehicle approaching from the right. Since there are no signs D-1, A-7 or B-20 and no traffic lights at the junction, it is an uncontrolled junction of equal roads and the right-hand rule applies: the vehicle on your right goes first, regardless of which street looks "more important" or wider. The black car is coming out from the right, so you give way. In residential streets between old apartment buildings such junctions are common, and the view to the right is often blocked by buildings and parked cars, so you approach slowly, ready to stop before the junction. Remember also that the pedestrian crossing you passed earlier requires you to reduce speed and give way to pedestrians.

Legal basis: Art. 25 para. 1 of the Road Traffic Act (Prawo o ruchu drogowym)