Re: RTP v/s UDP

[Anders Broman <a.broman () telia com>]

Hi,
  Goggling for VLC player found http://www.videolan.org/vlc/ very 
breifly looking at the info it looks like there are several options
for how the video stream is sent if it really is RTP in your case you 
could use decode as and select RTP and then use the RTP analysis
Note that it designed to analyse Audio and some values may not be 
entirely correct/applicable for Video.

You can also use the IO-graph to calculate the  bandwidth. If RTP isn't 
used you may have to digg trough the documentation/sources
of the VLC player to find out if you can do the calculations you need. 
You may have to export the data from the RTP analysis and perform your 
own calculation from the raw data or update Wiresharks sources to do it 
for you. You may also have to know what codec(s) are used to do correct 
calculation. You must also consider where your traces are made and 
perhaps compare results
from the sender side with results on the receiver side. No easy answers 
here :-)
Regards
Anders

ankur aggarwal skrev 2010-04-07 20:10:
> Hi Antony ,
>   Thanxs for your response. What does this mean *"RTP is commonly 
> carried within UDP"** ??* I found that wireshark provide support for 
> RTP* *as http://wiki.wireshark.org/RTP_statistics* . If i need to 
> calculate jitter,bandwith etc. What should i use. How can i use UDP
>
> Ankur
> *
> On Wed, Apr 7, 2010 at 1:57 PM, Anthony Murabito <anthony () iol unh edu 
> <mailto:anthony () iol unh edu>> wrote:
>
>     Hi Ankur,
>
>     RTP is commonly carried within UDP. Although this is not
>     mandatory, there are other possible underlying protocols such as
>     AAL5.
>
>     Regards,
>
>     Anthony
>
>     On 04/07/2010 01:49 PM, ankur aggarwal wrote:
> >     Hello All,
> >       I am a new user of wireshark. I am working on stream video
> >     packets and receving at other end through wireless hops (Access
> >     point). I used to do this using VLC player and thru UDP protocol.
> >     I started using Wireshark for analysis of my packets. In between
> >     i found we cannot calculate jitter , delay etc.. through UDP.
> >     Later i found RTP protocol. Now the question is what exactly is
> >     the difference between UDP and RTP in term of networking and in
> >     term of Wireshark s/w working.
> >
> >     I need some proof as this information will be needed for my
> >     publication.
> >     Help me plz
> >     -- 
> >     With Regards
> >
> >     Ankur Aggarwal
> >     Research intern
> >     Optical Zeitgeist Laboratory
> >     Institut National de la Recherche Scientifique (INRS) - ÉMT
> >     800, de la Gauchetière Ouest, bureau 6900
> >     Montréal, QC, H5A 1K6
> >     CANADA
> >
> >     Ph: +1 514 966-2661
> >     E-mail: ankur.1066 () gmail com <mailto:ankur.1066 () gmail com>
> >     Web: www.zeitgeistlab.ca <http://www.zeitgeistlab.ca>
> >     Group Member Page: http://zeitgeistlab.ca/doc/groupmembers.html
> >
> >
> >
> >     ___________________________________________________________________________
> >     Sent via:    Wireshark-users mailing list<wireshark-users () wireshark org>  <mailto:wireshark-users () wireshark 
> > org>
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>     -- 
>     *Anthony*
>
>     ___________________________________________________________________________
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>
>
>
> --
> With Regards
>
> Ankur Aggarwal
> Research intern
> Optical Zeitgeist Laboratory
> Institut National de la Recherche Scientifique (INRS) - ÉMT
> 800, de la Gauchetière Ouest, bureau 6900
> Montréal, QC, H5A 1K6
> CANADA
>
> Ph: +1 514 966-2661
> E-mail: ankur.1066 () gmail com <mailto:ankur.1066 () gmail com>
> Web: www.zeitgeistlab.ca <http://www.zeitgeistlab.ca>
> Group Member Page: http://zeitgeistlab.ca/doc/groupmembers.html
>
>
>
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