Wireshark-bugs: [Wireshark-bugs] [Bug 7301] New: dissector for DVB Application Information Table
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Tue, 29 May 2012 11:41:59 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7301

           Summary: dissector for DVB Application Information Table (AIT)
           Product: Wireshark
           Version: SVN
          Platform: x86
        OS/Version: All
            Status: NEW
          Severity: Enhancement
          Priority: Low
         Component: Dissection engine (libwireshark)
        AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
        ReportedBy: wireshark@xxxxxxxxx


Build Information:
TShark 1.7.2 (SVN Rev 42898 from /trunk)

Copyright 1998-2012 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 (64-bit) with GLib 2.24.2, with libpcap, with libz 1.2.3.4, without
POSIX capabilities, without SMI, without c-ares, without ADNS, without Lua,
without Python, with GnuTLS 2.8.6, with Gcrypt 1.4.5, with MIT Kerberos,
without
GeoIP.

Running on Linux 2.6.32-5-amd64, with locale en_US.UTF-8, with libpcap version
1.1.1, with libz 1.2.3.4.

Built using gcc 4.4.5.

--
Dear all,

we already have a framework to DVB tables and dissectors for many of those
tables. The following patch adds a dissector for the Application Information
Table (AIT). 

The AIT is used to signal interactive application that are broadcast in
conjuction with a TV service. The main example are HbbTV applications
(hbbtv.org).

There's nothing special in the dissector. I changed the mpeg crc function to
return the number of dissected bytes so that I can increment my offset.

I attach a simple example with AITs for two German TV channels.

Thanks for your feedback and for merging the dissector.

Best regards,

   Martin

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