Re: [AVTCORE] RTP/TFRC + FEC ?

[Olivier Crête <[e-mail]>]

On Mon, 2011-05-09 at 10:34 -0400, Olivier Crête wrote:
> On Sat, 2011-05-07 at 11:47 -0700, Ali C. Begen (abegen) wrote:
> > > I've implemented the RTP/TFRC draft and it seems to work pretty well.
> > > That said, it also introduces some level of packet losses. Also, with
> > > some wifi connections, we have a relatively high rate of non-congestion
> > > packet loss. For both of these cases, I'd like to implement some kind of
> > > FEC, since losing a single packet tends to give nasty artifacts with
> > > video (especially using the free video codecs).
> > > 
> > > It seems the current tendency in recent RFCs related to FEC is to send
> > > the FEC data as a separate stream from the main data. This seems to go
> > 
> > That has a lot good features. Please see the drafts in fecframe wg.
> > The fec framework draft will also tell you that both the source and
> > fec packets can be sent in their own RTP streams (with different
> > SSRCs) but within the same UDP flow, if that is what you are worried
> > about.
> 
> I saw vague allusions to using different SSRCs, but I couldn't find
> anything to signal that using SIP/SDP ?

Arg, I found a:ssrc-group.. seems like I'm not very good at reading.

-- 
Olivier Crête
[e-mail]