W3C home > Mailing lists > Public > public-texttracks@w3.org > February 2012

Re: metadata in the VTT file header, re-starting the conversation

From: David Singer <singer@apple.com>
Date: Wed, 22 Feb 2012 10:49:32 -0800
Cc: public-texttracks@w3.org
Message-id: <D6B14A28-D8CB-4DAF-A4A5-1FC99EC5B100@apple.com>
To: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
done!

On Feb 21, 2012, at 22:35 , Silvia Pfeiffer wrote:

> Could you add your use cases to
> https://www.w3.org/Bugs/Public/show_bug.cgi?id=15851 ?
> 
> Cheers,
> Silvia.
> 
> On Wed, Feb 22, 2012 at 10:31 AM, David Singer <singer@apple.com> wrote:
>> Hi
>> 
>> this conversation petered out, and we could really do with a way to store attributes in the VTT file header:
>> a) documented (standard)
>> b) vendor-specific and experimental, probably
>> 
>> Does anyone have any preferred syntax for doing this?  It's a little tricky, because one of the values I'd like to support is in-line CSS
>> 
>> 
>> On Dec 22, 2011, at 10:18 , David Singer wrote:
>> 
>>> Hi
>>> 
>>> we've mentioned this in passing, and maybe we need an issue or a bug tracker for this.
>>> 
>>> We probably need to put in the file header some meta-data, that could be used for (for example)
>>> * if the VTT file is used by a 'media player' outside a web context
>>> * when the file is going to be, but not yet, embedded in a web context, information that will be needed to do that embedding right
>>> 
>>> These categories probably overlap.  I'm thinking of examples like
>>> -- "looks better if these style-sheets are used"
>>> -- "has an overall language of en-US"
>>> -- "is intended for this 'kind' in HTML"
>>> -- "when used with the expected mpeg-2 transport stream, <this> VTT timestamp is (maps to) <that> MPEG-2 clock reference"
>>> 
>>> and so on.
>>> 
>>> Do we have proposals, or are we at the use-case and data-collection stage?
>>> 
>>> David Singer
>>> Multimedia and Software Standards, Apple Inc.
>>> 
>>> 
>> 
>> David Singer
>> Multimedia and Software Standards, Apple Inc.
>> 
>> 

David Singer
Multimedia and Software Standards, Apple Inc.
Received on Wednesday, 22 February 2012 18:50:45 UTC

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