Re: [Sipping] Transcoding/Reconciling Device Capabilities
Gonzalo Camarillo <Gonzalo.Camarillo@ericsson.com> Thu, 24 February 2005 04:24 UTC
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Date: Tue, 22 Feb 2005 11:30:16 +0200
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From: Gonzalo Camarillo <Gonzalo.Camarillo@ericsson.com>
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To: "Roy, Radhika" <RoyR@saic-abingdon.com>
Subject: Re: [Sipping] Transcoding/Reconciling Device Capabilities
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Cc: sipping <sipping@ietf.org>, Henning Schulzrinne <hgs@cs.columbia.edu>
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Hi Roy, inline: Roy wrote: > Hi, Gonzalo and Henry: I guess you meant "Henning", right? > I find that the following drafts of yours have some similarities so far > transcoding is concerned. I find that Henning's draft addresses more > generic way including mobility. Henning's draft deals with transcoding by using the 3pcc model documented in the 3pcc transcoding draft. There isn't any inconsistency as far as I can see between both drafts. Of course, Henning's draft covers ground that is outside the scope of the transcoding work. > http://www.ietf.org/internet-drafts/draft-shacham-sipping-session-mobili > ty-00.txt > > http://standards.ericsson.net/gonzalo/papers/draft-ietf-sipping-transc-f > ramework-00.txt > > http://www.ietf.org/internet-drafts/draft-ietf-sipping-transc-3pcc-02.tx > t > > http://standards.ericsson.net/gonzalo/papers/draft-camarillo-sipping-tra > nsc-b2bua-01.txt > > Let me suggest that all transcoding drafts be extended to make them more > generic, as Henning has done in Section 6 of his draft, titling as > "Reconciling Device Capability Differences" and use codec differences, > TTS, STT, bandwidth differences, QoS parameter differences, etc. as > separate examples. > > Is this suggestion acceptable? The transcoding drafts already state that the mechanisms described there are general and can be used to invoke simple transcoders or more complicated media servers. From the Introduction of the transcoding framework: So, the invocation mechanisms described in this document are generally applicable to any type of incompatibility related to how the information that needs to be communicated is encoded. Furthermore, although this framework focuses on transcoding, the mechanisms described are applicable to media manipulation in general. It would be possible to use them, for example, to invoke a server that simply increased the volume of an audio stream. In any event, in future revisions of this document we will try to stress (even more) this point, as you suggest. Thanks for the comments, Gonzalo _______________________________________________ Sipping mailing list https://www1.ietf.org/mailman/listinfo/sipping This list is for NEW development of the application of SIP Use sip-implementors@cs.columbia.edu for questions on current sip Use sip@ietf.org for new developments of core SIP
- RE: [Sipping] Transcoding/Reconciling Device Capa… Roy, Radhika
- RE: [Sipping] Transcoding/Reconciling Device Capa… Roy, Radhika
- Re: [Sipping] Transcoding/Reconciling Device Capa… Gonzalo Camarillo