Extract Face region , timestamp of each unique face appearance , active speaker or not from a video , in Json or any format .

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Using the project how would I begin to extract each unique face in a video , and based on that face its timestamp from when it occurs and the region , as well as is it active speaker or not ? ; in some sort of json or any format , rather than all these things directly being output into video form in the demo folder.

Thankyou.