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Re: [Linphone-developers] question about rtp_session_resync

From: Simon Morlat
Subject: Re: [Linphone-developers] question about rtp_session_resync
Date: Thu, 11 Sep 2008 00:01:08 +0200
User-agent: KMail/1.9.9


Le Monday 08 September 2008 20:35:04 Henning Christiansen, vous avez écrit :
> Hi all,
> I am using oRTP for voice communication in parallel with SIP protocol.
> The following question has come up:
> When I receive a "timestamp_jump" indication from oRTP, I call
> "rtp_session_resync" to re-synchronoze to the received RTP streams.
> Now, under certain circumstances I receive continuous "timestamp_jump"
> indcations after this.

THis is usually the symptom of a sender that sends wrong timestamps (timestamp 
that increment too much between two packets).
You can check the sender timestamps with wireshark (it 's quite clear).


> How is this possible and how can I overcome this?
> Will I have to reset the time stamp values when calling
> "rtp_session_recv_with_ts"?
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