Re: [MMUSIC] Updated MSID draft

[Harald Alvestrand <[e-mail]>]

On 05/03/2014 04:37 AM, Flemming Andreasen wrote:
> Hi Harald
>
> I have taken a closer look at msid-05 and have a number of comments. I
> will list the major ones and/or what might require list discussion
> here and send you a bunch of more detailed ones in an annotated
> version off-line:
>
> 1) There are some grammar inconsistencies between the way you use
> token and (some) of the text you have. In general, it seems the length
> should be limited and the set of characters you want to allow are less
> than what token allows for.
>
> 2) Offer/Answer procedures are lacking. We need to have an O/A section
> with subsections as per RFC 3264 (for unicast) to better specify the
> overall behavior here (Generating the Initial Offer, Generating the
> Answer, Offerer Processing of the Answer, Modifying the Session)

Hm. But MSID isn't an offer/answer field. It's an unilateral
declaration, and refers to no information coming from the other side.

Does it make sense to follow the offer/answer section format when the
answer doesn't depend on the offer?

>
> 3) There is some ambiguity as to what constitues an msid value and
> more specifically when it includes both the MediaStream identifier and
> the MediaStreamTrack and when (if ?) it doesn't.

Hm. Must make this clearer. The generic format has MST-identifier
optional, and the WMF usage has MST-identifier mandatory.

>
> 4) Unified-plan is being referenced in a normative manner (but is
> listed as an informative reference). Since unified-plan is not
> expected to go to RFC, having a normative reference to it is problematic.

Have to move this pointer to JSEP. I think JSEP has the necessary
targets now.

>
> Thanks
>
> -- Flemming
>
>
>
> On 3/6/14, 8:25 AM, Flemming Andreasen wrote:
>> I think the draft needs a bit more work in a few places (largely
>> editorial and more text on some of the procedures). I'll sign up to
>> do a pre-WGLC individual review to get you some more tangible and
>> constructive feedback on that.
>>
>> Thanks
>>
>> -- Flemming
>>
>>
>> On 3/6/14, 8:19 AM, Harald Alvestrand wrote:
>>> I have uploaded an updated msid draft, without the msid-control:
>>> section.
>>>
>>> As I said in the WG meeting, I think this is now uncontroversial, and
>>> should be ready for WG Last Call.
>>>
>>> I request that the WG chairs consider whether they agree with this
>>> opinion.
>>>
>>
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>


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