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Wireshark-users: Re: [Wireshark-users] RTP Stream Analyses [Marker Bit]

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From: "Shuaib Siddiqui" <shuaibe@xxxxxxxxx>
Date: Fri, 6 Jul 2007 19:21:43 +0200

When I analyze the video I streamed, i get two rtp streams, one with large number of pkts (88980 pkts) and other with relatively less number of pkts (7454 pkts). The stream with more pkts have Incorrect Timestamp in several pkts and abnormal jitter values whereas the the stream with low number of pkts has not a single Incorrect timestamp or a pkt with marker bit set! I guess these two streams corresponds to the audio and video of the file Iam streaming. If its a bug in Wireshark, is there any way around this problem? Thanks again!

On 7/6/07, Shuaib Siddiqui <shuaibe@xxxxxxxxx> wrote:

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

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

References:
- [Wireshark-users] RTP Stream Analyses [Marker Bit]
  - From: Shuaib Siddiqui

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