[Clinton Work <clinton@xxxxxxxxxxx>]

Here is a link to some documentation on what the mpeg2 patch can decode
and how it was intended to be used. The mpeg2 dissector was designed to
read an mpeg2 transport/program stream from a file versus IPV4 UDP
or RTP.
http://student.cosy.sbg.ac.at/~lfindeis/ethereal_mpeg2_docu.pdf

Its been a while since I looked at the dissector, but it expects to
be passed a 188 byte transport stream datagram. Most MPEG2 over UDP
streams pack multiple 188 byte transport stream datagrams into one UDP 
packet. A new dissector needs to be written for MPEG2 TS over UDP and
then hand the 188-byte transport streams to the mpeg2 dissector.

As somebody pointed out, mpeg2 TS over RTP is common as well. I can
provide captures for both if people want examples to decode.


Miha Jemec wrote:
> Does anyone knows what MPEG-2 streams this patch can decode? I have a
> normal MPEG-2 multicast video stream (over UDP) but is not recognized by
> this decoder. How to decode the MPEG-2 header inside this packets?
>
> Thanks for any help, Miha


--
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Clinton Work	clinton@xxxxxxxxxxx
Calgary, AB