Hi,
Is there an RFC on that? Are there sample captures to work with? This
always helpsin development.
Thanx,
Jaap
Now competing at http://www.ec2009.info
On 26 aug 2009, at 07:36, shruti singh <[email protected]>
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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