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Re: ttp:* test files

From: Philippe Le Hegaret <plh@w3.org>
Date: Wed, 03 Dec 2008 11:30:16 -0500
To: David Kirby <david.kirby@rd.bbc.co.uk>
Cc: public-tt@w3.org
Message-Id: <1228321816.3238.42.camel@localhost>

I notice that you use a region element in your tests. Is that necessary?
Given that we don't have support for region in the implementations, it
would be better to limit the use of the region element to the layout


On Wed, 2008-12-03 at 15:50 +0000, David Kirby wrote:
> Here's a set of test files that I hope covers most of the parameter 
> attributes.
> I have a few questions:
> a) As I'm not familiar with 29.97 and drop frame, etc., could someone 
> look over the frameRateMultiplier and smpteMode files to make sure my 
> interpretation is correct? For the latter test, I've used Glenn's 
> timecode values from the spec which highlight the difference between 
> drop and non-drop frame, but a longer duration of visible text would be 
> better (i.e. > 3 frames). Does anyone have a drop-frame timecode 
> calculator, so I don't need to work it out frame-by-frame?
> b) how can we test ttp:pixelAspectRatio ?
> c) how can we test ttp:profile ?
> David
Received on Wednesday, 3 December 2008 16:30:38 UTC

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