[streaming] Re: Multicast streaming and forward error correction...

[Chhaya, Harshal]

> Any help at all would be appreciated, including any other help with
> streaming multicast on a wireless link! :)


James,

I don't think VLC supports FEC for transmitting a stream but I don't
know for sure and I will let others comment on that.

But I do know that streaming multicast on a wireless link is less
reliable than streaming unicast on the same link. The wireless LAN
protocol requires explicit acknowledgement for unicast data which
helps with re-transmissions of lost frames. This re-transmission is
very quick and is transparent to the upper protocols (TCP/UDP).
Multicast/broadcast data are not acknowledged and so lost frames
can't be recovered quickly. And if you are using UDP to stream, they
can't be recovered at all. As a result, streaming multicast video 
over a wireless link will suffer from packet loss. 

Have you tried sending each video as a unicast stream? If the total
data-rate can be supported by your wireless link, this could be your
best option.

Regards,
- Harshal

-- 
This is the streaming mailing-list, see http://www.videolan.org/streaming/
To unsubscribe, please read http://www.videolan.org/support/lists.html