- From: Brendan Long <self@brendanlong.com>
- Date: Wed, 08 Jan 2014 10:50:53 -0600
- To: public-html@w3.org
- Message-ID: <1389199853.5686.9.camel@blong-desktop>
My company is working on a spec to translate CEA-708 captions to WebVTT, and one issue we're running into is it's not always obvious how long a particular caption should be displayed. This blog post says that there has been discussion to add a "NEXT" end time for WebVTT, meaning "until the next cue", which would also be useful for us. I don't remember seeing this discussed on the mailing list though, so I'm wondering if you're still planning to add this. If so, how will it be represented? TextTrackCue.endTime is currently a "double". One option would be making it nullable and making null mean "until the next cue". Making endTime a string would make the type more complicated, but would let us use "NEXT". We had also considered using infinity, but I suspect null or "NEXT" would be less confusing. --=-57xwZbfjku60+AJmT/eD Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: 7bit <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 TRANSITIONAL//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=UTF-8"> <META NAME="GENERATOR" CONTENT="GtkHTML/4.6.6"> </HEAD> <BODY> My company is working on <A HREF="http://www.cablelabs.com/specification/mapping-from-mpeg-2-transport-to-html5-specification">a spec to translate CEA-708 captions to WebVTT</A>, and one issue we're running into is it's not always obvious how long a particular caption should be displayed. <A HREF="http://gingertech.net/2013/12/18/webvtt-discussions-at-foms/">This blog post</A> says that there has been discussion to add a "NEXT" end time for WebVTT, meaning "until the next cue", which would also be useful for us. I don't remember seeing this discussed on the mailing list though, so I'm wondering if you're still planning to add this.<BR> <BR> If so, how will it be represented? TextTrackCue.endTime is currently a "double". One option would be making it nullable and making null mean "until the next cue". Making endTime a string would make the type more complicated, but would let us use "NEXT". We had also considered using infinity, but I suspect null or "NEXT" would be less confusing. </BODY> </HTML> --=-57xwZbfjku60+AJmT/eD--
Received on Wednesday, 8 January 2014 16:51:31 UTC