W3C home > Mailing lists > Public > public-webrtc@w3.org > August 2011

RE: Clarification on media capture split between WebRTC and DAP

From: Rob Manson <roBman@mob-labs.com>
Date: Tue, 16 Aug 2011 23:16:07 +1000
To: Adam Bergkvist <adam.bergkvist@ericsson.com>, "public-webrtc@w3.org" <public-webrtc@w3.org>
Cc: Rich Tibbett <richt@opera.com>
Message-ID: <1313500567.6734.15624.camel@robslapu>
Hi Adam,

> I think it will be tricky to have a MediaStream that's restricted to
> local usage only, and still be useful. It wouldn't be sufficient to
> prevent the stream from being added to a PeerConnection. E.g. we would
> have to disable the MediaStreamRecorder as well as ability to render
> the video in a canvas because once recorded clips or video frames have
> been extracted from the stream it's quite hard to prevent them from
> being transmitted somewhere. I.e. once the application can access the
> data there's no reasonable way to guarantee local usage only. Then
> there wouldn't be too many interesting usecases left.

Yes...that is a very good point.  
I'll blame my flawed thinking on enthusiasm and a long day 8)

Transparency around which streams a browser is currently sending could
definitely help with this and could provide an advantage over native

For the AR use case this is a serious privacy issue.  You're right we
can't stop this issue...but I'd be interested in your thoughts on making
it visible to the user.

Received on Tuesday, 16 August 2011 13:16:36 UTC

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