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RE: ISSUE-101 (rollup interval): aribitrary interval for rollup needs justification [DFXP 1.0 (Editorial)]

From: Geoff Freed <geoff_freed@wgbh.org>
Date: Fri, 15 May 2009 09:51:49 -0400
To: Sean Hayes <Sean.Hayes@microsoft.com>, Timed Text Working Group WG <public-tt@w3.org>
Message-ID: <E36081A12A13F146AC32D7724B0E891219E00E823D@EXCHCCR.wgbh.org>

no problem with the change in wording:

"If the value of this attribute is rollUp, then this value is interpreted as a shorthand value equivalent to out(line,smooth) inter(0.433s).  This time interval is intended to be compatible with "Closed Caption Decoder Requirements for Analog Television," page 792 (http://edocket.access.gpo.gov/cfr_2005/octqtr/47cfr15.119.htm).


g.

________________________________________
From: Sean Hayes [Sean.Hayes@microsoft.com]
Sent: Friday, May 15, 2009 9:48 AM
To: Geoff Freed; Timed Text Working Group WG
Subject: RE: ISSUE-101 (rollup interval): aribitrary interval for rollup  needs justification [DFXP 1.0 (Editorial)]

Ok, although rather than 'defined by'; I'd prefer to say 'intended to be compatible with', since we are defining it and we don't want it as a normative reference.

rollup doesn't seem to be defined in EBU3264 or DVB subtitles, so unless Franz or David objects to the US centric nature of this reference, this is fine by me.

Sean Hayes
Media Accessibility Strategist
Accessibility Business Unit
Microsoft

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


-----Original Message-----
From: Geoff Freed [mailto:geoff_freed@wgbh.org]
Sent: 15 May 2009 2:29 PM
To: Sean Hayes; Timed Text Working Group WG
Subject: RE: ISSUE-101 (rollup interval): aribitrary interval for rollup needs justification [DFXP 1.0 (Editorial)]


for section 8.2.7 (http://www.w3.org/TR/2009/WD-ttaf1-dfxp-20090511/#style-attribute-dynamicFlow), paragraph #5:

"If the value of this attribute is rollUp, then this value is interpreted as a shorthand value equivalent to out(line,smooth) inter(0.433s).  This time interval is defined by "Closed Caption Decoder Requirements for Analog Television," page 792 (http://edocket.access.gpo.gov/cfr_2005/octqtr/47cfr15.119.htm).

how's that?

g.

________________________________________
From: Sean Hayes [Sean.Hayes@microsoft.com]
Sent: Friday, May 15, 2009 7:04 AM
To: Geoff Freed; Timed Text Working Group WG
Subject: RE: ISSUE-101 (rollup interval): aribitrary interval for rollup  needs justification [DFXP 1.0 (Editorial)]

That would be helpful. If you can suggest wording for the spec that would be even better.

Sean Hayes
Media Accessibility Strategist
Accessibility Business Unit
Microsoft

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


-----Original Message-----
From: public-tt-request@w3.org [mailto:public-tt-request@w3.org] On Behalf Of Geoff Freed
Sent: 15 May 2009 11:57 AM
To: Timed Text Working Group WG
Subject: RE: ISSUE-101 (rollup interval): aribitrary interval for rollup needs justification [DFXP 1.0 (Editorial)]


this corresponds to the speed of the scroll of 608 roll-up displays, i believe.  i can look this up if you need me to.

g.

________________________________________
From: public-tt-request@w3.org [public-tt-request@w3.org] On Behalf Of Timed Text Working Group Issue Tracker [sysbot+tracker@w3.org]
Sent: Friday, May 15, 2009 6:54 AM
To: public-tt@w3.org
Subject: ISSUE-101 (rollup interval): aribitrary interval for rollup needs justification [DFXP 1.0 (Editorial)]

ISSUE-101 (rollup interval): aribitrary interval for rollup needs justification [DFXP 1.0 (Editorial)]

http://www.w3.org/AudioVideo/TT/tracker/issues/101

Raised by: Sean Hayes
On product: DFXP 1.0 (Editorial)

In the Proposed 'rollup' shorthand. The 'inter' value of 0.433s needs some justification or explanantion
Received on Friday, 15 May 2009 13:53:58 GMT

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