You are turning right and the motorcyclist approaching from the left intends to continue going straight. Do you have priority over it?

In the video, you are approaching an intersection where there are no signs regulating the right of way, making it an unmarked intersection of equal roads. According to Art. 25 para. 1 of the Road Traffic Act, at such an intersection you are obliged to yield the right of way to a vehicle approaching from the right, and you have priority over a vehicle from the left. Since the motorcyclist is approaching from your left, you have priority over him.