Re: feedback on UA test cases

Hi Silvia,

On 6/04/2011 9:14, Silvia Pfeiffer wrote:
> Some input from me into the discussion for later today.
>
> http://www.w3.org/2008/WebVideo/Fragments/TC/ua-test-cases#TC0001-UA
> http://www.w3.org/2008/WebVideo/Fragments/TC/server-test-cases#TC0001-S
> I think if we really want the t=, case to be equivalent to #t=s,e and
> equivalent to a request of the full resource with a 200 reply, we have
> to explicitly state that the browser knows that s and e are the start
> and end time of the resource from a previous retrieval action.
Agreed.

> http://www.w3.org/2008/WebVideo/Fragments/TC/ua-test-cases#TC0002-UA
> http://www.w3.org/2008/WebVideo/Fragments/TC/server-test-cases#TC0002-S
> A 416 error is correct for the server. It should never happen that the
> UA sends this kind of request.
> Rather, if the UA notices this request and hasn't got the setup
> information for the resource yet, it will send a request just for the
> header bytes (e.g. the first 200kb) and we should get a 206 reply. We
> include Range: include-setup for the fragment-capable servers.
> (same logic applies to
> http://www.w3.org/2008/WebVideo/Fragments/TC/ua-test-cases#TC0003-UA)
Can you specify what is wrong with TC0002-UA, I didn't get it.

>
> http://www.w3.org/2008/WebVideo/Fragments/TC/ua-test-cases#TC0004-UA
> http://www.w3.org/2008/WebVideo/Fragments/TC/server-test-cases#TC0004-S
> The UA should never ask for byte ranges on this (other than as part of
> its normal subsegmentation retrieval). If it knows that it is asking
> for the full resource, it should not include byte ranges. Only if it
> doesn't know that, will it do a npt request.
> A situation like this:
>    GET spatial_30fps.webm HTTP/1.1
>    Range: t:npt=0-9.97
>    Accept-Range-Redirect: bytes
> should not happen - it should include the include-setup part, because
> it obviously doesn't yet know about the setup information (otherwise
> it would ask for the full resource).
Yes, you're right. I will do the necessary changes

Best regards,

Davy

-- 
Davy Van Deursen

Ghent University - IBBT
Department of Electronics and Information Systems - Multimedia Lab
URL: http://multimedialab.elis.ugent.be/dvdeurse

Received on Wednesday, 6 April 2011 08:46:00 UTC