Re: Captioning for live video

Hi Silvia,

>         2. Solution in WebVTT
>
>
>     Separately from WebVTT syntax issues, currently the spec does not
>     support streaming of WebVTT in <track>.
>
>
> That's what https://www.w3.org/Bugs/Public/show_bug.cgi?id=18029 is 
> about. I continue to believe that similarly to how we can stream a 
> video live to a <video> element, we should be able to stream text to a 
> <track> element and synchronize it from the cue time stamps.
I fully agree with that. In this respect, you might be interested by the 
demo I made at MPEG back in October, showing synchronized playback of 
streamed subtitles and video in a live scenario using DASH. Details are 
here:
http://concolato.wp.mines-telecom.fr/2012/12/14/live-streaming-of-video-and-subtitles-using-dash/

Regards,
Cyril

-- 
Cyril Concolato
Maître de Conférences/Associate Professor
Groupe Multimedia/Multimedia Group
Telecom ParisTech
46 rue Barrault
75 013 Paris, France
http://concolato.wp.mines-telecom.fr/