Wireshark-bugs: [Wireshark-bugs] [Bug 4591] New: Adding a new dissector to dissect the RTP MUXed
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Wed, 17 Mar 2010 07:19:31 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4591

           Summary: Adding a new dissector to dissect the RTP MUXed stream
                    with header compression.
           Product: Wireshark
           Version: SVN
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Enhancement
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: sourabhrathor2008@xxxxxxxxx


Created an attachment (id=4414)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=4414)
The files written for compressed RTP dissector.

Build Information:
sourabh@debian:~$ wireshark -v
wireshark 1.3.4 (SVN Rev 32207 from /trunk)

Copyright 1998-2010 Gerald Combs <gerald@xxxxxxxxxxxxx> and contributors.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Compiled with GTK+ 2.12.12, with GLib 2.16.6, with libpcap 0.9.8, with libz
1.2.3.3, without POSIX capabilities, without libpcre, with SMI 0.4.7, without
c-ares, without ADNS, without Lua, without Python, with GnuTLS 2.4.2, with
Gcrypt 1.4.1, without Kerberos, without GeoIP, without PortAudio, without
AirPcap, with new_packet_list.

Running on Linux 2.6.26-2-686, with libpcap version 0.9.8, GnuTLS 2.4.2, Gcrypt
1.4.1.

Built using gcc 4.3.2.

--
This is a dissector to dissect the RTP MUXed stream with RTP Header
compression.
Currently Wireshark has a capability to dissect the RTP MUXed stream without
header compression using the interface named nb_rtpmux coded in file
packet-nb_rtpmux.c( wireshark-1.3.1/epan/dissectors).

Now I have added a dissector named compress_rtp to the same folder, which is
dissecting an RTP packet with header compression. I have also made a change to
packet-nb_rtpmux.c as not to call the normal RTP dissector but to call the new
dissector named compress_rtp.

The new RTP packet has following fields ::
Sequence No.   1 Byte
Timestamp      2 Byte 
RTP Data       n Byte

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