Re: mapping between TTML and WebVTT

On Jun 24, 2014, at 8:42 , Glenn Adams <glenn@skynav.com> wrote:

> No. I am not working on a mapping from TTML to WebVTT. And No, I do not agree to (and would object to) incorporate such a mapping into the TTML2 spec. It can be done in a separate document, although, who would have an interest in creating such a document, I don't know. I might be persuaded to do such work if a sponsor stepped forward for such independent work, but none of my sponsors have expressed such interest.
> 
> What I am working on for inclusion in TTML2 is a mapping to CSS/HTML5 as an additional alternative to the current XSL-FO mapping.

I support a separate document, and I think rather important for the community at large.  I think it’s going to take a respectful conversation between experts to create it, alas, and I was hoping that we could make progress at a face to face.  However, I am not sure we’ll have enough VTT experts at the next one in Geneva.

Glenn, I am assuming you can offer your TTML expertise; who can offer VTT, and is there anyone with feet in both camps (well, a foot in each, we don’t need a centipede)?

thanks

> 
> 
> On Tue, Jun 24, 2014 at 1:08 AM, Thierry MICHEL <tmichel@w3.org> wrote:
> Glenn,
> 
> During the Shenzhen F2F, the TTWG had agreed to include the following deliverable into the TTML spec instead of a Note has mentionned in the TTWG charter
> 
> "Working Group Note on the mapping between TTML and WebVTT"
> 
> I understood from previous discussion that you were working on this mapping.
> 
> Looking at the editor's draft I see in the appendix
> P-CEA708 Mapping Considerations (Non-Normative)
> 
> but none about the mapping between TTML and WebVTT
> 
> Could you also put a placeholder in the TTML2 spec for this mapping ?
> 
> Do you plan to publish it with the FPWD of TTML2?
> 
> maybe you could also add an informative link to the following:
> Conversion of 608/708 captions to WebVTT
> https://dvcs.w3.org/hg/text-tracks/raw-file/default/608toVTT/608toVTT.html
> 
> Thierry
> 
> 

David Singer
Manager, Software Standards, Apple Inc.

Received on Tuesday, 24 June 2014 19:28:05 UTC