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[reSIProcate-users] Sdpcontents processing ???

 

Hi,

I'm using Resiprocate 1.5. And I see something weird in SdpContents processing. 
May be I'm missing something here.  My application is acting as an UAS. This is 
my incoming Offer SDP from UAC:

v=0^M
o=VGW 1251901012 1251901012 IN IP4 10.1.83.143^M
s=VGW^M
c=IN IP4 10.1.83.143^M
t=0 0^M
a=sendrecv^M
a=x-ActiveSpeaker:on^M
m=audio 45894 RTP/AVP 103 ^M
a=rtpmap:103 ISAC/16000/1^M
a=fmtp:103 mode=30, type=fixed, bitrate=32000^M
a=silenceSupp:off - - - -^M

And in my application, I handle this offer SDP in the following code:
-----------------------------------------------------------------------------
SdpContents* offer  (point to the incoming Sdpcontents.)
session = offer->session();

for (std::list<SdpContents::Session::Medium>::const_iterator
MediaIt = session.media().begin();
MediaIt != session.media().end(); MediaIt++) {
   for (std::list<SdpContents::Session::Codec>::const_iterator codecsIt = 
MediaIt->codecs().begin();
   codecsIt != MediaIt->codecs().end(); codecsIt++)
   {
      unsigned int pt = codecsIt->payloadType();
      Data encName = codecsIt->getName();
      unsigned int rate = codecsIt->getRate();
      cout(" codec details " << pt << " " << encName << " " << rate );
   }
}
-----------------------------------------------------------------------------
The above code outputs:
codec details 103 ISAC 16000
codec details 0 PCMU 8000
---------------------------------------------------------------------------------


1. Where does this "0 PCMU 8000" comimg from ????  Am I missing something here ?
2. I did look into resip/stack/SdpContents.cxx, list<Codec>&  
SdpContents::Session::Medium::codecs(). I uncommented the DebugLogs and got the 
following log from Resiprocate.

DEBUG | 20090902-141651.601 | VAPPS | RESIP:SDP | 3046296496 | 
SdpContents.cxx:1611 | SdpContents::Session::Medium::getCodec(103 ISAC/160      
  00/1)
DEBUG | 20090902-141651.601 | VAPPS | RESIP:SDP | 3046296496 | 
SdpContents.cxx:1635 | SdpContents::Session::Medium::getCodec[](ISAC/16000      
  /1)
DEBUG | 20090902-141651.601 | VAPPS | RESIP:SDP | 3046296496 | 
SdpContents.cxx:1645 | Found static codec for format: 0


Thanks,
Vasanthi