[Live-devel] H.264 streaming -- Not receiving all packets

[Ross Finlayson]

>If my H/W encoder is single-slice, am I doomed?

No, of course you're not 'doomed', but if your 'reference frames' are 
very large (and you didn't say how large they typically are), then 
they are going to be especially vulnerable to packet loss.  If you 
could split them up into 'slice' NAL units in software (I'm not a 
H.264 expert, so I don't know how easy/hard that would be), and 
instead deliver - to the rest of the LIVE555 code - one 'slice' NAL 
unit at a time, then that would be better.


>  Seems to be working well on a reliable network for 1080i @ 5 Mb/s. 
>Anything higher (10 Mb/s) is not as stable but I haven't had time 
>investigating why.

It's probably because (assuming your frame rate remains constant) 
your 'reference frames' are doubling in size when you switch from 5 
Mbps to 10 Mbps.  Once again, if such a frame takes up a single NAL 
unit, then the loss of *any* network packet will render it unusable.
-- 

Ross Finlayson
Live Networks, Inc.
http://www.live555.com/