[OpenSIPS-Users] rtpproxy stream2uac using incorrect codec

[Razvan Crainea]

Hi Chris,

Yes, you are right, RTPProxy starts the playback only if rtpproxy_answer 
was called. I don't know why this was designed like that. Perhaps to be 
sure that RTPProxy always sends media to the preferred codec.

Anyway, when a re-INVITE is triggered a Lookup command should be sent to 
RTPProxy, and he will store the latest codec list.

Regards,

Razvan Crainea
OpenSIPS Developer


On 22.06.2011 16:13, Chris Martineau wrote:
>
> Hi,
>
> Would have thought this would cause issues as the caller list is only 
> a request and cannot be confirmed until the callee confirms what he 
> wants to use. Is there a specific reason why it is like this as most 
> playback would be after at least some form of negotiated codec is 
> confirmed and I believe rtpproxy won't actually perform a playback 
> unless an rtpproxy_answer has been triggered?
>
> On a similar note how do I get re-invites with sdp to be updated with 
> the correct rtpproxy entries when forwarded?
>
> Many thanks
>
> Chris
>
> *From:*users-bounces at lists.opensips.org 
> [mailto:users-bounces at lists.opensips.org] *On Behalf Of *Razvan Crainea
> *Sent:* 22 June 2011 08:44
> *To:* users at lists.opensips.org
> *Subject:* Re: [OpenSIPS-Users] rtpproxy stream2uac using incorrect codec
>
> Hello Chris,
>
> I am afraid RTPProxy doesn't use the negociated codec to send media to 
> UAC.
> For the caller it uses the codec list received in the Update command, 
> and for callee the one received in Lookup.
>
> Regards,
>
> Razvan Crainea
> OpenSIPS Developer
>
>
> On 21.06.2011 18:48, Chris Martineau wrote:
>
> Hi,
>
> Doing some further testing looking at debug on rtpproxy I see the 
> initial offer giving Uc8,0,101 as the codec list, I then see the 
> answer giving Lc0,101 as the codec list but when I see the P stream 
> message it says it is playing the relevant prompt but using codec 8 
> surely it should be using the negotiated codec in the answer message?
>
> Any help would be appreciated.
>
> Regards
>
> Chris
>
>   
>   
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