Dump required for multiplexed streams

[shruti singh <shruti.is.singh () gmail com>]

Hey

I have taken the wireshark dev image to decode multiplexed streams.Can you
provide me any dump for multiplexed streams which I can decode in wireshark

Thanks & Regards
Shruti

On Wed, Aug 26, 2009 at 11:06 AM, shruti singh <shruti.is.singh () gmail com>wrote:

> Hi
>
> I need to decode RTP Multiplex streams using wireshark. Presently we can
> decode only Non -Multiplexed RTP streams in wireshark.
>
> A multiplexed voice packet is composed by concatenating RTP encapsulated
> voice packets and IP and UDP headers.
>
>  Below is the Multiplex Packet format
>
>
>
> IP
>
> UDP
>
> Multiplex Header
>
> Compressed RTP Header
>
> RTP Payload
>
> Multiplex Header
>
> Compressed RTP Header
>
> RTP Payload
>
>
>
> This Multiplex header is repeated in beginning of each RTP packet. So I was
> thinking of way to extract this multiplex header & use it to decode each RTP
> packet following this Multiplex header.
>
> I supose we need to make a dissector packet-rtpmultiplex.c regestring to a
> UDP port as a starting point.
>
> Dissect the multiplex header, decompress the rtp header and have the RTP
> dissector dissecting
> the resulting "RTP packet" - decompressed header+data.
>
> Could you help me in dissecting the multiplex header and make this work.
>
>
> Also I need to know the steps to write our own filters in wireshark
>
>
> It would be great help. Kindly reply as soon as possible
>
>
> Regards
>
> Shruti
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