Re: [Linphone-users] adding G726-40,32,24,16 dynamic PT codecs to oRTP

[Dimitris Tsaimos]

Simon Morlat wrote:

> Hello,
>
> Your payload definitions are ok. I think your noise problem probably results 
> of encoding/decoding problems. Also check that all packets are correctly 
> received (no timestamp problems) using the oRTP statistics 
> (ortp_global_stats_display()).
>
> You can setup a profile on a per call basis using this:
> RtpProfile *prof=rtp_profile_clone(&av_profile);
> /* add your dynamic payloads:*/
> rtp_profile_set_payload(prof,32,&payload_type_g726_40);
> /*...*/
> /* set the profile to the session */
> rtp_session_set_profile(session,prof);
>  

Hi again,

after adding the new codec definitions, I call the 
rtp_profile_set_payload()  function from my RTP application, but the 
linker yields an error

"undefined reference to..."

How can I export the newly defined variables?

Dimitris

> Simon
>
>  
>
> > When I try to set up a conversation with the SIPURA ATA using any of the
> > above codecs, I get annoying noise.... - which could be due to further
> > modifications needed to the oRTP lib or some internal imlementation
> > error, that is what I am trying to find out. However, my code works just
> > fine with ALL static PT codecs -G711, G729a.G723. Are there any further
> > modifications that should be applied to oRTP to support the
> > aforementioned codecs?
> >
> > Additionally, the RTP payload type of theses codecs is determined by
> > the call stack and should be decided on a per call basis. Could anybody
> > tell me - preferrably using an example - what are the functions I should
> > call in order to perform such a task?
> >
> > Any help would be greatly appreciated.
> >
> > Regards,
> > Dimitris
> >    
>
>
>  


--
Dipl-Ing Dimitris H. Tsaimos
Senior Engineer
Systems Design Group
Keletron Ltd                    Tel:     +30-2310-947979
49 D.Glinou street              Fax:     +30-2310-947386
543 52 Thessaloniki             e-mail:  address@hidden