- From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
- Date: Tue, 15 Apr 2014 07:43:10 +1000
- To: Jay Munro <jaymunro@microsoft.com>
- Cc: Sam Ruby <rubys@intertwingly.net>, public-html <public-html@w3.org>
On Tue, Apr 15, 2014 at 4:28 AM, Jay Munro <jaymunro@microsoft.com> wrote: > I brought this up with Robin, and we tried it in a couple of browsers using the debugger. It appears to be supported by at least two. > > I wrote a demo that I use in my documentation, and I've posted it on the sample server. It appears to work fine in IE11 and Chrome. Firefox seems not to like the TextTrack info, but I didn't debug it. > > Here's the url: http://samples.msdn.microsoft.com/Workshop/samples/media/addtexttracktest.html > > Sample's pretty simple: > > <!DOCTYPE html > > > <html > > <head> > <title>Add Text Tracks example</title> > </head> > <body> > > <video id="video1" controls="controls" muted="muted"> > <!-- change to your own mp4 video file --> > <source src="http://ie.microsoft.com/testdrive/Videos/BehindIE9ModernWebStandards/Video.mp4" /> You need to add an alternative source file in WebM or Ogg format for Firefox and other browsers to work. > HTML5 Video not supported > </video> > > <script> > var video = document.getElementById("video1"); > var startTime, endTime, message; > var newTextTrack = video.addTextTrack("captions", "sample"); > newTextTrack.mode = newTextTrack.SHOWING; // set track to display > // create some cues and add them to the new track > for(var i=0;i<30;i++){ > startTime = i * 5 ; > endTime = ( (i * 5) + 5); > message = "This is number " + i; > newTextTrack.addCue(new TextTrackCue(startTime, endTime, message)); TextTrackCue has no constructor any more, so this is not spec conformant. You have to create a VTTCue or a DataCue. Chrome and IE's support of the constructor need to be deprecated. (This is the case for the WHATWG and the W3C specs). HTH. Cheers, Silvia. > } > video.play(); > </script> > </body> > </html> > > > -----Original Message----- > From: Silvia Pfeiffer [mailto:silviapfeiffer1@gmail.com] > Sent: Saturday, April 12, 2014 9:37 PM > To: Sam Ruby > Cc: public-html > Subject: Re: HTML5 CR "at risk" features > > On Sat, Apr 12, 2014 at 8:31 PM, Sam Ruby <rubys@intertwingly.net> wrote: >> On 04/11/2014 09:41 PM, Silvia Pfeiffer wrote: >>> >>>> HTMLMediaElement.addTextTrack - Discussed at F2F meeting >>> >>> >>> I tried to find out from the minutes why addTextTrack is at risk, but >>> it was only mentioned without reasons. >> >> >> From http://www.w3.org/2014/04/09-html-wg-minutes.html : >> >> ... lots of failures on HTMLMediaElement.addTextTrack ... mostly >> failing at the moment > > That's what I saw. I dug around a bit and assume it's based on this test: > http://w3c.github.io/html/test-results/less-than-2.html#test-file-62 > > At first sight, I think the test might expect the wrong kinds of errors. > Will investigate. > > Cheers, > Silvia. >
Received on Monday, 14 April 2014 21:43:58 UTC