How to check that DeepAR has started playing video on canvas?

SDK
1

DeepAR takes quite a lot of time to start rendering something on canvas.

I want to make canvas hidden and show raw video underneath until DeepAR starts rendering (logo has appeard).

2

The web SDK resolves the promise returned by the initialize function when it is finished initializing.

3

Yes, but I’ve noticed that DeepAR logo appears after initialization with some delay.

And it takes some time to think after a call to setVideoElement