Hi,
How is the stream set up (SIP/RTSP/H323...)?
Can you retry on Ethereal 0.10.14 some improvements has been made there if
The payload type for dynamic payloads can be determined( which it can if SDP
is used I think, at least for SIP). BTW which payload type is it?
Brg
Anders
>Hi,
>
>I'm trying to do RTP Analysis with Ethereal 0.10.10 for a captured video
stream session. I'm getting too high numbers in the jitter calculations. For
>example, I'm getting mean jitter values of 1771310.65 ms (which of course
can not be true).
>
>The following are some lines out of the analysis screen (some columns
removed):
>
>Packet Sequence Delta (ms) Jitter (ms)
>27 0 0 0
>29 1 230 14.38
>32 2 80 562508.48
>34 3 20 1089850.45
>35 4 0 1584234.79
>37 5 130 2047711.99
>38 6 50 2482226.87
>40 7 20 2889586.44
>42 8 81 3271482.23
>43 9 130 3629506.46
>
>Even if the jitter calculation mistakenly assumes a clock rate of 1Hz (as
suggested by comment below from this forum), the conversion from ticks to
>seconds still results in too high jitter value (e.g., 1771310.65/90000 = 19
secs, assuming video clock rate is 90KHz).
>
>Note that even the Receiver Reports (RR) have very high jitter values. One
sample RR gives interarrival jitter = 11333786 in ticks. When converted to
>seconds assuming 90KHz it gives 11333786/90000 = 125.xx secs.
>
>
>Could somebody please offer an explanation for this?
>
>
>Thanks,
>
<Cesar