RE: Suggested Text for Issue-188 to Close Action-128

Perhaps it should state :
Use of a rendering and authoring constraint model would facilitate effective use of TTML to deliver closed captions to the Internet.  Such a model could balance the minimum time period between subtitle events and the complexity of the document.  The definition of such a constraint model could be considered for future work in TTWG

From: Monica Martin (MS OPEN TECH)
Sent: 12 November 2012 09:55
To: Glenn Adams
Cc: Sean Hayes; public-tt@w3.org; Michael A Dolan (mdolan@newtbt.com)
Subject: RE: Suggested Text for Issue-188 to Close Action-128

A rendering model further constraints the presentation processor in addition to what is defined in TTML 1.0. Some potential areas such as line or character rates, buffering, etc.

I take your point though we need to associate or differentiate this from what is defined in TTML 1.0.

Monica

From: Glenn Adams [mailto:glenn@skynav.com]
Sent: Monday, November 12, 2012 9:44 AM
To: Monica Martin (MS OPEN TECH)
Cc: Sean Hayes; public-tt@w3.org; Michael A Dolan (mdolan@newtbt.com)
Subject: Re: Suggested Text for Issue-188 to Close Action-128

The following text doesn't make any sense. Firstly, "rendering model" is not defined. Also, it isn't clear how such a model would differ from the region and layout presentation model defined in [1].

[1] http://www.w3.org/TR/2010/REC-ttaf1-dfxp-20101118/#semantics-region-layout


On Wed, Nov 7, 2012 at 2:18 PM, Monica Martin (MS OPEN TECH) <momartin@microsoft.com<mailto:momartin@microsoft.com>> wrote:
For Action-128 (http://www.w3.org/AudioVideo/TT/tracker/actions/128) and Issue-188 (https://www.w3.org/AudioVideo/TT/tracker/issues/188).

Add A.3 [1] that states:
        Use of a rendering model and authoring constraints would facilitate effective use of TTML to deliver closed captions to the Internet.  Such a model could balance the minimum time period       between subtitle events and the complexity of the document.  The definition of such a rendering model could be considered for future work in TTWG.

Monica

[1] A.1 is font names. A.2 will be character edge attributes. A.3 is rendering model.