Unfortunately it's not something you can define or fix.
It has to be fixed by the developers.
 
Lars

 
  _____  

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Shuaib Siddiqui
Sent: jeudi 12 juillet 2007 14:38
To: wireshark-users@wireshark.org
Subject: Re: [Wireshark-users] RTP Stream Analyses [Marker Bit]


Hi,
 
Looks like i didnt get the messages ... sorry about that. 
 
@ Lars:
"The wrong jitter values probably come from the fact that there is no (or at
least not the right) sampling clock rate defined for the used payload type."
I didnt understand what you mean, who and where we have to define the
sampling clock rate or how can we fix this ?

thanks!


 
 
From: "Lars Ruoff" <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]> >
Date: Fri, 6 Jul 2007 16:40:29 +0200

 
>From my memories:
packets with the marker bit set don't take part in the jitter calculation.
This is because in RTP audio streams marked packets usually mark the end of
silence periods. 
The wrong jitter values probably come from the fact that there is no (or at
least not the right) sampling clock rate defined for the used payload type.
Both issues would be worth revisiting.
 
Lars



On 7/12/07, Lars Ruoff <[EMAIL PROTECTED]> wrote: 

There were some responses to your mail!
As long as you aren't registered, look at the web archives at
http://www.wireshark.org/lists/wireshark-users/
 
Lars
 

  _____  

From: [EMAIL PROTECTED] [mailto:
<mailto:[EMAIL PROTECTED]>
[EMAIL PROTECTED] On Behalf Of Shuaib Siddiqui
Sent: jeudi 12 juillet 2007 12:58
To: wireshark-users@wireshark.org
Subject: [Wireshark-users] RTP Stream Analyses [Marker Bit]

 

Hi,

I streaming videos using VLC on the client side and Darwin Streaming Server
on server side. When I analyse the rtp stream on the client side using
Wireshark, I see some RTP with marker bit set and immediately after such RTP
packet the jitter value is very high as compared to the previous one, plus
it also displays Incorrect Timestamp. I looked up the marker bit in the RFC
1889 but they just state it as profile specific. Kindly, can anyone provide
any further explanation? 
Plus does the abnormality in the jitter value means the jitter values
further on are not credible ? 
Thank you for yout time!

Shuaib
 
PS: I have asked this question before but didnt get any explanation, so I
would kindly request all the users and the Wireshark Gurus to give some
insight into this problem, thank you!




-- 
MSc in Communication Systems
I&C Faculty
EPFL
Switzerland
Home page: http://shuaibe.googlepages.com/ 
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