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Re: Screen sharing

From: Randell Jesup <randell-ietf@jesup.org>
Date: Thu, 01 Dec 2011 14:11:12 -0500
Message-ID: <4ED7D150.3030605@jesup.org>
To: public-webrtc@w3.org
On 12/1/2011 10:21 AM, Stefan Håkansson LK wrote:
> Related to use-case 4.2.7 "Simple Video Communication Service with
> sharing"
> (<http://datatracker.ietf.org/doc/draft-ietf-rtcweb-use-cases-and-requirements/?include_text=1>)
> we had a student experimenting a bit.
>
> Essentially, the screen was treated as another video source (just as a
> camera), and was transmitted to the other end as a MediaStream over a
> PeerConnection.

I believe this is similar to what Google is experimenting with in 
Hangouts with Extras.  You can share a window or the entire screen.
Classic video codecs aren't necessarily the best for this, but they can 
work well.

> The implementation of getUserMedia allowed the screen to be selected as
> a video source.

Yes, this was discussed earlier on in the rtcweb list and the rtcweb 
interim call (when we dropped the proposal for a "remote access" use-case).

> Perhaps this could be a way forward for meeting this use-case? And
> perhaps "screen" should be defined as a valid options argument to
> getUserMedia?
>
> (there is some more info about what the student did at
> <https://labs.ericsson.com/developer-community/blog/screen-sharing>)

-- 
Randell Jesup
randell-ietf@jesup.org
Received on Thursday, 1 December 2011 19:13:15 UTC

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