Hi Guy, Got it, thanks very much for your time and quick response!
Best Regards Nan Xiao On Tue, Sep 21, 2021 at 4:54 PM Guy Harris <ghar...@sonic.net> wrote: > > On Sep 21, 2021, at 1:17 AM, Nan Xiao <xiaonan830...@gmail.com> wrote: > > > I have an original pcap file whose RTP payload type is AMR-WB, and it > > uses "Octet-Aligned Mode" to encode data. Then I just changed the > > octet-align from 1 to 0 in SIP/SDP message (The 1st packet, fmtp:123 > > octet-align=0), and hope the wireshark can assume the data as > > "Bandwidth-Efficient Mode", but the wireshark still decodes the AMR-WB > > encoding as "Octet-Aligned Mode". > > The AMR dissector currently has no mechanism by which it can get an > indication of whether octet-aligned or bandwidth-efficient mode is used, > other than by a preference setting for the AMR protocol. > > You can work around this in Wireshark by opening up the Preferences dialog, > opening up the "Protocols" list, going to the "AMR" entry in that list, and > setting the "Type of AMR encoding of the payload" to "RFC 3267n BW-efficient". > > If you want the AMR dissector to get that information from the SIP messages > used to set up the conversation (if those messages are available!), please > file an enhancement request at > > https://gitlab.com/wireshark/wireshark/-/issues > > Attach your capture to the issue. > ___________________________________________________________________________ > Sent via: Wireshark-users mailing list <wireshark-users@wireshark.org> > Archives: https://www.wireshark.org/lists/wireshark-users > Unsubscribe: https://www.wireshark.org/mailman/options/wireshark-users > mailto:wireshark-users-requ...@wireshark.org?subject=unsubscribe ___________________________________________________________________________ Sent via: Wireshark-users mailing list <wireshark-users@wireshark.org> Archives: https://www.wireshark.org/lists/wireshark-users Unsubscribe: https://www.wireshark.org/mailman/options/wireshark-users mailto:wireshark-users-requ...@wireshark.org?subject=unsubscribe
