Ah! Thanks Răzvan and Johan. I was thinking that the options described in
the OpenSIPS RTPEngine module documentation were the only ones
available, but I missed the key phrase...
*When passing an option that OpenSIPS is not aware of, it will be
blindly sent to the rtpengine daemon to be processed.*
...I should be fine from here I think. Thanks for your help.
On Tue, 14 Sept 2021 at 14:29, Răzvan Crainea <[email protected]> wrote:
> I think the proper way to do it is
>
> `transcode-opus/48000/2/32000//maxplaybackrate--48000;stereo--0;useinbandfec--1;maxaveragebitrate--32000`
> Anyway, as Johan suggests, follow the rtpengine documentation, you will
> find more info there.
>
> Best regards,
>
> Răzvan Crainea
> OpenSIPS Core Developer
> http://www.opensips-solutions.com
>
> On 9/14/21 15:51, Mark Allen wrote:
> > Hi Răzvan
> >
> > OpenSIPS passes the commands to RTPengine as you supply them, so in
> > theory this should be supported. Did you try to set this up? Can you
> > provide any logs about this?
> >
> >
> > No. I'm not sure how I would specify this in the opensips.cfg
> > rtpengine_offer parameters. From the documentation for the
> > rptengine OpenSIPS module, it doesn't seem as if something like the
> > following is an option...
> >
> >
> >
> transcode-opus='opus/48000/2/32000//maxplaybackrate=48000;stereo=0;useinbandfec=1;maxaveragebitrate=32000'
>
> >
> >
> > ...however, if I have tried this in the code (with or without quotes) it
> > doesn't produce an error, either from OpenSIPS or rtpengine, but neither
> > does it do anything - Opus fmtp in the SDP is not changed. I guess I'm
> > looking for the correct OpenSIPS syntax to pass these parameters
> > successfully to rtpengine
> >
> >
> >
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> >
>
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