Re: [rtcweb] draft-ietf-rtcweb-rtp-usage: CSRC in the API?

Stefan Håkansson LK <stefan.lk.hakansson@ericsson.com> Fri, 22 February 2013 11:11 UTC

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Date: Fri, 22 Feb 2013 12:11:19 +0100
From: Stefan Håkansson LK <stefan.lk.hakansson@ericsson.com>
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Subject: Re: [rtcweb] draft-ietf-rtcweb-rtp-usage: CSRC in the API?
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On 2013-02-22 12:08, Harald Alvestrand wrote:
> On 02/22/2013 11:22 AM, Magnus Westerlund wrote:
>> On 2013-02-22 10:43, Adam Bergkvist wrote:
>>> Reading CSRC info:
>>> Right now, the SSRC(s) of a track is only exposed via the Stats API. I
>>> think that's the right level if we were to support reading CSRC info as
>>> well.
>> I don't see how the Stats API comes in here. The information bit I see
>> the CRSC list provides is: These MST(s) was used to produce what you
>> get. It is a information about original identity of the media sources.
>> Thus I would guess that in the API it might be appropriate to map the
>> CSRC list to the MST IDs.
>
> Can you expand MST, please?

MediaStreamTrack is my guess.

>
> My googling for "CSRC" and "MST" together only came up with
> "Multi-Session Transmission" (from the COP draft), and that doesn't seem
> to fit.
>
>>
>> Please remember that the CSRC list is dynamic and can change frequently.
>>
>> Cheers
>>
>> Magnus Westerlund
>>
>> ----------------------------------------------------------------------
>> Multimedia Technologies, Ericsson Research EAB/TVM
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>> Ericsson AB                | Phone  +46 10 7148287
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