[Freeswitch-users] RTP timestamps jumping backwards

[Peter Olsson]

There is actually a setting to force new SSRC in a condition like that.

Internally it's called RTP_BUG_CHANGE_SSRC_ON_MARKER. If I remember
correctly it should be set in the sofia profile config:

<param name="auto-rtp-bugs" data="CHANGE_SSRC_ON_MARKER"/>

Try that out and see if it helps.

/Peter


2014-03-28 11:37 GMT+01:00 Richard Brady <rnbrady at gmail.com>:

> Hi Anthony and team
>
> I have a situation where the timestamp in a RTP stream generated by FS
> jumps backwards. Version 1.2.22.
>
> It seems the cause of this is that media from the A leg starts late. So in
> the meantime we start generating media on the B leg with our own timestamp.
>
> Then media starts arriving on the A leg so we relay it and we start using
> that timestamp instead of our own.
>
> FS sets the marker bit when this happens but I'm not sure this makes it OK
> to turn back the timestamp. I think we should actually be using a new SSRC.
>
> Any thoughts? (happy to raise a Jira ticket and verify in master).
>
> Richard
>
> --
> Richard Brady
> M: +44 (0)7771 623 348
> T:  +44 (0)20 8144 8160
> E: rnbrady at gmail.com
>
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