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RE: RE: RE: Re: Re: TTML and aspect ratio

From: David Ronca <dronca@netflix.com>
Date: Mon, 4 Feb 2013 18:14:31 +0000
To: "public-tt@w3.org" <public-tt@w3.org>
Message-ID: <F7DC5134CE82754A878475EEBA450B3B31400A@EXMB105.corp.netflix.com>
Here is the scenario:

1) no extent specified on root container 
2) 1080p video
3) Region with origin = "10%,10%", and extent = "50%,15.33%", and tts:textAlign="Left"

What will be the absolute pixel position of the first character in this region? 

From: Sean Hayes <Sean.Hayes@microsoft.com>
Date: Mon, 4 Feb 2013 18:00:16 +0000
To: David Ronca dronca@netflix.com
Yes please explain. Since the root container is an invisible rectangle; you can tell what tis width and height is.
The drawn regions by contrast you can tell. If the drawn region is centered and drawn 32 characters wide, then this solves the problem in 16:9, 4:3, 22:10 or anything else.
Received on Monday, 4 February 2013 18:14:59 UTC

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