Testing a deep buffered video? How to Automate?

I would very much like to know anyone's thoughts on how to test a video that has been deep buffered. In simple terms, the video buffers ahead of the normal (shallow buffer) when the network conditions are stable. Then in the event of it being degraded, the end-user can still stream the video for a period of time uninterrupted.

I am particularly interested in automated test scenarios.

Thank you!