On Tue, Dec 10, 2013 at 3:37 AM, Loretta Guarino Reid < lorettaguarino@google.com> wrote: > > On Mon, Dec 9, 2013 at 6:54 AM, Nigel Megitt <nigel.megitt@bbc.co.uk>wrote: > >> >How many of these 114 features are actually in use in the wild? WebVTT >> >has a strong drive to only support features that are motivated by a >> >use case. If any of these features are necessary, WebVTT can be >> >extended to support them. Some of them (like the 'padding' above) >> >would be fixed simply by adding the feature to the list of supported >> >CSS properties, which takes less than 5min to fix. It would be best >> >for us to find this out before we freeze the spec. Any input on use >> >cases would be welcome. >> >> Considering the amount of scrutiny and effort that's been put into >> developing TTML over many years it's safest to assume that all of the >> features have a use case/requirement within the overall scope of >> requirements rather than starting from the opposite perspective. Different >> subsets of these features may be needed for different parts of the entire >> author->audience workflow. > > > > I would hope that the amount of scrutiny and effort that has gone in would > make it easy to respond to this request, since you would know where the > features are needed, hence where to look for the examples. > I would suggest folks that wish to explore this further start by reading the Timed Text Authoring Use Cases and Requirements document at [1], which served to drive the specification of TTML1. [1] http://www.w3.org/TR/2006/NOTE-ttaf1-req-20060427/
Received on Monday, 9 December 2013 21:32:00 UTC