Insane Bitrates On Both Pirates Films!!

[phloyd]

Originally Posted by Razter

The BD spec say 40Mbps for video, that's why this is interesting. Does something allow for peaks higher than 40Mbps or is the bitrate meter simply just inaccurate on PS3?

I have often wondered that myself.

From what I can see, it is really not possible for the mux (total bitrate of everything) to go over 48 Mbps.

However... if there is a buffer that can store up video that is then 'released' at a huge bitrate, the 48Mbps need not apply. That said, I would expect most authoring tools to limit video to 40 Mbps...

But you never know.

So my theory is that the PS3 meter is not particularly accurate - at least until I see evidence to refute that and support the buffer concept.

It is also not clear over what time range the 40 Mbps limit applies (ie, you could have a big spike and then a lower bitrate for most of the 'sampling time' and still manage a 40 Mbps average for that period of time)...

Anyways, until we can mess with the actual streams, it is difficult to know for sure...