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[MMUSIC] Re: Deleted Streams in Grouping
Hello,
in the offer/answer model there is not such a thing as a "deleted"
stream. You never delete m lines. You set the port number to zero, which
is reffered to as "rejecting" a media stream.
Therefore, if you have a session that lasts very long, and you have been
adding and "rejecting" streams, your SDPs will carry a lot of garbage...
ungly, but that's the way it is.
Regards,
Gonzalo
ssundaragopalan@hss.hns.com wrote:
>
> Hi,
> Suppose there exists a group which groups two media streams m1 and
> m2.
> If a stream gets deleted in the middle of the session(say m1), then do we
> have to remove
> the "Media Stream Identification tag"(mid) from the grouping??. The RFC
> says we will
> have to remove the mid's for rejected streams. There is no mention about
> deleted streams.
>
> If we dont do this then there might be a problem when we try to add a new
> stream(say m3).
>
> Assume that we have deleted m1 from the session and the *mid* is not
> removed from
> grouping. When we try to add a third stream m3 to the session, the slot of
> the deleted stream
> gets reused. Also the Media Stream Identification tag(mid) remains the same
> .
> This will cause this stream to be part of the grouping, which is not TRUE.
>
> Please clarify.
>
> Thanks and regds,
> srikanth sundaragopalan
> Hughes Software Systems.
--
Gonzalo Camarillo Phone : +358 9 299 33 71
Oy L M Ericsson Ab Mobile: +358 40 702 35 35
Telecom R&D Fax : +358 9 299 30 52
FIN-02420 Jorvas Email : Gonzalo.Camarillo@ericsson.com
Finland http://www.hut.fi/~gonzalo
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