Get Low-latency live streaming adjusted playback speed

Hi,

Is it possible to get the current speed of the player (the on that the renderer is using?
I'm trying to get it in order to have some data to help in the adjustment of the stream parameters for Low-latency live streaming, but i couldn't find i way to observer it.
I've thought i could obtain it using the onPlaybackParametersChanged callback, but those values doesn't change even when the DefaultClock adjusted speed changes.

Thanks for the help