In this situation, are you approaching a crossroad with a side road to the left?

In the final frames of the recording, the informational sign D-1 "priority road" is visible on the right along with the T-6b plate. The diagram on the plate shows the course of the priority road (indicated by a thick line) and the junction of a subordinate road from the left (indicated by a thin line). This means you are approaching an intersection where the subordinate road is located on the left side.