[reSIProcate] Does this is a SdpContents bug ?

[Karlsson <boost.regex@xxxxxxxxx>]

Hi all, I have encountering a strange problem., I think it's a bug ?

1: A called B with GSM and G729 codec,  B answered call with GSM.
2: Now B want to using G729, Update invite with G729 only(for this UPDATE mesage, the SDP just inclued the G729 only).
3: A received this UPDATE invite message, then parse the SDP:


    list<SdpContents::Session::Medium>::const_iterator mediaiter = sdpContent->session().media().begin();

    Data sdptext = Data::from(*sdpContent);
    ::MessageBoxA(NULL, sdptext.c_str(), "test", MB_ICONINFORMATION);   // This message shows the SDP just has G729 only.


    AudioCodec DTMFCodec;

    for (; mediaiter!=sdpContent->session().media().end(); ++mediaiter)
    {
        if (compareStringNoCase(mediaiter->name().c_str(), "audio") == 0)
        {
            mRemoteAudioPort = mediaiter->port();
            list<SdpContents::Session::Codec>::const_iterator codecIter = mediaiter->codecs().begin();

            for (; codecIter!=mediaiter->codecs().end(); ++codecIter)
            {
                AudioCodec codec;
                codec.setCodecName(codecIter->getName().c_str());     //  <------------- But at here, I got the PCMU first when I received each UPDATE INVITE, after PCMU, then got the G729,
// the mediaiter->codecs() inclued two codecs(always PCMU first)

                codec.setRemoteTypeValue(codecIter->payloadType());


                audioCodecList.push_back(codec);
            }

        }

And I have captured the SIP message by wireshark, it's shows the UPDATE invite message SDP just inclued G729 codec only, but when I using the mediaiter->codecs() to
access the codecs, always got the PCMU first. This issue just appears with UPDATE invite message, with INVITE message, it's normal.

please help me, thank you in advance.