You intend to go straight ahead. Are you obliged to yield the right of way to the vehicle approaching from the left?

In the video you are approaching a roundabout at night; before the entry there are signs A-7 "give way" and C-12 "roundabout". The traffic lights at the entry show a flashing amber signal, so they do not control traffic, they only warn - right of way is decided by the signs. A car is coming along the roundabout from the left. You want to go straight on, but at a roundabout marked in this way every driver entering it gives way to those driving on it. The answer is: yes.

The Regulation on road signs and signals states that C-12 together with A-7 means that a driver who is already on the junction has right of way over a driver entering it. On a roundabout cars drive to the right around the central island, so they always come from the left. At night you judge distance by the lights, and this can be misleading, so if in doubt you stop before the line and let the car go.

Legal basis: § 36 para. 2, § 5 para. 5 and § 98 para. 6 of the Regulation on road signs and signals; Art. 5 para. 1 of the Road Traffic Act (Prawo o ruchu drogowym)