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RE: ISSUE-104 (Clarify language around flowBuffer): Clarify language around flowBuffer [DFXP 1.0 (Editorial)]

From: Sean Hayes <Sean.Hayes@microsoft.com>
Date: Thu, 28 May 2009 10:35:17 +0100
To: "Glenn A. Adams" <gadams@xfsi.com>
CC: Timed Text Working Group WG <public-tt@w3.org>
Message-ID: <AB3FC8E280628440B366A29DABB6B6E8075DA2D9D7@EA-EXMSG-C334.europe.corp.microsoft.com>
Yes, I believe so.

Sean Hayes
Media Accessibility Strategist
Accessibility Business Unit
Microsoft

Office:  +44 118 909 5867,
Mobile: +44 7875 091385


-----Original Message-----
From: Glenn A. Adams [mailto:gadams@xfsi.com]
Sent: 28 May 2009 2:17 AM
To: Sean Hayes
Cc: Timed Text Working Group WG
Subject: RE: ISSUE-104 (Clarify language around flowBuffer): Clarify language around flowBuffer [DFXP 1.0 (Editorial)]


Regarding your proposed change to B.3.1 below, it seems that the last
three instances of
"T(k+1)" need to be "T(k)" as is the case in your proposed change to
B.3.2. Do you concur?

G.

> -----Original Message-----
> From: public-tt-request@w3.org [mailto:public-tt-request@w3.org] On
Behalf Of Timed Text
> Working Group Issue Tracker
> Sent: Friday, May 15, 2009 7:03 PM
> To: public-tt@w3.org
> Subject: ISSUE-104 (Clarify language around flowBuffer): Clarify
language around
> flowBuffer [DFXP 1.0 (Editorial)]
>
>
> ISSUE-104 (Clarify language around flowBuffer): Clarify language
around flowBuffer [DFXP
> 1.0 (Editorial)]
>
> http://www.w3.org/AudioVideo/TT/tracker/issues/104
>
> Raised by: Sean Hayes
> On product: DFXP 1.0 (Editorial)
>
> Some proposed changes to wording for clarification of flow buffer
semantics:
>
> B.2 compute the difference between the content produced:
>
> "in the procedure described above, the content of a flow buffer at
time Tk is considered
> to be significantly different from the content of the same flow buffer
at time Tk+1 if
> the set of glyph areas that would be produced by performing synchronic
flow processing
> on intermediate  synchronic document at time Tk differs from the set
of glyph areas that
> would be produced by performing synchronic flow processing on
intermediate  synchronic
> document at time Tk+1 in any of the following ways:"
>
> "then instantaneously replace" -> "replace at time T(k+1)"
>
> B.3.1
> "if the value of the fill interval is auto, then the computed fill
interval from time
> T(k) up to but not including T(k+1) is equal to the difference between
the time
> coordinate associated with the most temporally prior beginning point
of an active
> duration of some content unit present in the flow buffer at time
T(k+1) and the most
> temporally subsequent ending point of an active duration of some
content unit present in
> the flow buffer at time T(k+1) divided by the number of fill units
currently available
> in the flow buffer at time T(k+1)."
>
> B.3.1 and B.3.2 (assuming clear interval is retained)
> "if the value of the clear interval is auto, then the computed clear
interval from time
> T(k) up to but not including T(k+1) is equal to the difference between
the time
> coordinate associated with the most temporally prior beginning point
of an active
> duration of some content unit present in the presentation region at
time T(k)and the
> most temporally subsequent ending point of an active duration of some
content unit
> present in the presentation region at time T(k) divided by the number
of clear units
> currently available in the presentation region at time T(k)."
>
>
>
Received on Thursday, 28 May 2009 09:35:46 GMT

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