Get the bpm and heart rate variation from a random video.

[adriano-op]

Get the bpm and heart rate variation from a random video.

I'm using the cohface database and each video has a duration of 60 seconds, 30 fps.
When using pyVHR realease 2.0, I am unable to find the BPM and array that contains the heart rate variation or the resulting biometric signal from pyVHR.
As 30 fps x 60 seconds, this resulting signal would be approximately = 1800 nframes.

What are the steps I follow to achieve these results?