[whatwg] Media elements statistics

[Jeroen Wijering]

On May 5, 2011, at 7:04 PM, Steve Lacey wrote:

> Would jitter be calculated over decodedFrames or decodedFrames+droppedFrames? In the first case, jitter is a more granular metric for measuring exact presentation performance. In the latter case, jitter can serve as a single metric for tracking processing power (simple!). In either case, it's fairly straightforward to calculate towards the other metric.
> 
> Actually, I would expect presentedFrames + droppedFrames would be used. This implies all decoded frames that were supposed to be presented.

Ah yes, sorry. That makes sense. presentedFrames of course need to be included. 

- Jeroen