UDP Payloader (mrubinstein at rai-dev.com)
Robert Krakora
robkrakora at att.net
Wed Nov 7 12:35:35 PST 2012
> On Mon, 2012-11-05 at 16:47 -0500, Michael Rubinstein wrote:
>
> Hi,
>
> > I apologize for reposting, but my last message fell thru the cracks.
> >
> > We need to send MPEG Transport Stream packets using UDP with seven TS
> > packets per UDP packet. Each UDP packet needs to be 7 * 188 = 1316
> > bytes. Also the UDP packets need to be transmitted at a constant
> > rate, not in a burst.
> >
> > The buffers that are produced by mpegtsmux are large.
> >
> > Is there a way to do this that I missed?
> >
> > Would it be better to change mpegtsmux , write a ?Payloader? or
> > something else?
>
> Ideally mpegtsmux knew to automatically do the right thing in this case,
> but I'm not sure how to best do that yet.
>
> Maybe rtpmp2tpay ! rtpmp2tdepay works as a hack for the time being..
>
> Cheers
> -Tim
Thanks for the payloader/depayloader idea.
I'm leaning toward implementing a custom sink element. We're very
concerned about jitter.
Michael
I have used mpegtsmux and rtpmp2tpay in a pipeline along with gst-rtsp-server
and have not seen problems with jitter on the other end. My video conferencing
application is deployed on a large school campus and I see no issues. It is ran
in both unicast/multicast modes...
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