- From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
- Date: Sat, 15 Jun 2013 20:11:36 +1000
- To: Eric Carlson <eric.carlson@apple.com>
- Cc: Philip Jägenstedt <philipj@opera.com>, public-texttracks@w3.org
On Sat, Jun 15, 2013 at 1:41 AM, Eric Carlson <eric.carlson@apple.com> wrote: > > On Jun 14, 2013, at 1:57 AM, Silvia Pfeiffer <silviapfeiffer1@gmail.com> > wrote: > > OK, so I guess this is the crux of the matter: unifying the representation > of chapter cues. What formats other than WebVTT are able to represent > chapters? > > > Plenty others, including DVD chapters, chapters in QuickTime files, in > MP2, or in MP4 files. But they all parse down to a start time (an > optional end time) and a plain text string. > > > Many video players can display images as well as text in the chapter menu. > In QuickTime and MPEG-4 files these come from a video track of chapter > images that is associated with (referenced from) the chapter track. We > should consider this when we get around to specifying chapters in more > detail. Right, that would be an extended chapter format. We could even add that to a ChapterCue object since it seems fairly common and still signifies the same semantics. But I wouldn't want to have to parse a chapter cue that has image data in it and a chapter title into a WebVTTCue object and be able to interpret it as captions. Silvia.
Received on Saturday, 15 June 2013 10:12:23 UTC