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[Bug 14104] Video: Streaming text support in <track> element

From: <bugzilla@jessica.w3.org>
Date: Sat, 12 Nov 2011 21:58:37 +0000
To: public-html-bugzilla@w3.org
Message-Id: <E1RPLav-0003hL-78@jessica.w3.org>

--- Comment #20 from Silvia Pfeiffer <silviapfeiffer1@gmail.com> 2011-11-12 21:58:35 UTC ---
If you go to any of the videos on http://www.youtube.com/live , they all show
as the time at the beginning of the video the actual time that has passed since
the video started streaming. These times are easily matched to the time stamps
on a streaming text service such as http://streamtext.net/.

In fact, YouTube have used the services of a streaming text service before to
caption live video:
http://gigaom.com/video/youtube-launches-live-captions-at-google-io/. This ran
exactly how I described: when a viewer started watching the video, they also
received the streaming text with the time stamps since the beginning of the
transmission, which the video player was then able to synchronize.

It is possible to implement this fully in JavaScript with the current
specifications so I am not going to reopen this. But I expect that with the
progress that we make for WebRTC we may also need to revisit this issue and
wanted to leave more details on this bug.

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Received on Saturday, 12 November 2011 21:58:38 UTC

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