Preventing traffic bursts when streaming video (cbr)

Tim Müller tim at
Fri Jun 19 03:48:14 PDT 2015

On Fri, 2015-06-19 at 11:59 +0200, Andreas Brodmann wrote:

Hi Andreas,

> we are working on a project where we're forced to a 10Mbit/s ethernet.
> Our video stream is 3-5Mbit/s, so far ok.
> We realized that udpsink is "pulsing" out the packets in bunches, like
> sending at 100Mbit/s for a few milliseconds, then waiting for the rest
> of a second, then pulsing again.
> To succeed we need the traffic flow to be continuously < 10Mbit/s.

For what it's worth, in recent 1.x there's a "max-bitrate" property on
udpsink. You could try to backport that if 1.x is not an option for you
(which soc/board is this btw?)


Tim Müller, Centricular Ltd -

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