Re: [clue] contradiction in framework about simultaneous captures in a CSE

WFM.
Christian
On 22/02/2014 4:41 AM, Duckworth, Mark wrote:
> That works for me.
> Mark
>
>> -----Original Message-----
>> From: Paul Kyzivat [mailto:pkyzivat@alum.mit.edu]
>> Sent: Friday, February 21, 2014 12:40 PM
>> To: Duckworth, Mark; clue@ietf.org
>> Subject: Re: [clue] contradiction in framework about simultaneous captures
>> in a CSE
>>
>> On 2/21/14 12:20 PM, Duckworth, Mark wrote:
>>> Hi Paul,
>>>
>>> I thought of that possibility also.  But I think our intent was for the provider
>> to be able to advertise the complete scene information for original sources,
>> including CSEs, even if the provider didn't include encoding groups for those
>> captures.  I think it is useful to include the CSEs for captures without encoding
>> groups, because the consumer can use this information for choosing
>> captures, or choosing subsets within MCCs.
>>> Another possibility is to say either all captures in a CSE must include an
>> encoding group, or none of the captures in a CSE can include an encoding
>> group.  I can't think of a case that makes sense to include a mixture.
>>
>> We can just say that the provider must be capable of simultaneously
>> delivering all those captures in a CSE *that have an encoding group*.
>>
>> That would allow an CSE that has some captures with encoding groups and
>> some without. I can't think of any reason to do that, but it seems easier than
>> adding more arbitrary rules.
>>
>> 	Thanks,
>> 	Paul
>>
>>> Mark
>>>
>>>> -----Original Message-----
>>>> From: clue [mailto:clue-bounces@ietf.org] On Behalf Of Paul Kyzivat
>>>> Sent: Friday, February 21, 2014 11:55 AM
>>>> To: clue@ietf.org
>>>> Subject: Re: [clue] contradiction in framework about simultaneous
>>>> captures in a CSE
>>>>
>>>> On 2/21/14 10:06 AM, Duckworth, Mark wrote:
>>>>
>>>>> Here is a proposal for changing the sentence in 7.3:
>>>>>
>>>>> "If all the Captures in a single Capture Scene Entry have an
>>>>> Encoding Group, then the Provider MUST be capable of encoding and
>>>>> sending all those Captures simultaneously."
>>>>>
>>>>> Is that a good change?
>>>> The above implies that if some but not all captures in a CSE have
>>>> encoding groups, then there is no requirement for the provider to be
>>>> able to send them simultaneously.
>>>>
>>>> Does it make sense to define a CSE containing captures without
>>>> encoding groups?
>>>>
>>>> Is there any reason to do so?
>>>>
>>>> ISTM that we could instead say that a CSE MUST NOT reference a
>>>> capture that has no encoding group. Then 7.3 would be ok as it is.
>>>>
>>>> 	Thanks,
>>>> 	Paul
>>>>
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