Stream FEC-encoded data over simple UDP-protocol?

Olivier Crête olivier.crete at
Tue Mar 27 09:32:25 PDT 2012


On Tue, 2012-03-27 at 09:18 -0700, Bert Douglas wrote:
> FEC is not needed for UDP.    The UDP service delivers a packet, or
> does not.
> UDP does not randomly flip some bits inside the packet.
> To tolerate packet loss, only redundancy is needed.

I think he means Forward Erasure Correction (not Error), which is
definitely useful for UDP.

I wrote an experiment adding simple Reed-Solomon based FEC to Farstrem
last year [1]. There is also the IETF fecframe workground working on
that in the context of RTP [2].

That said, for most media applications, codec and media specific methods
are more efficient. 



Olivier Crête
olivier.crete at
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