W3C home > Mailing lists > Public > public-device-apis@w3.org > December 2009

RE: <device> proposal (for video conferencing, etc)

From: Tran, Dzung D <dzung.d.tran@intel.com>
Date: Wed, 16 Dec 2009 11:10:35 -0800
To: Ian Hickson <ian@hixie.ch>, Andrei Popescu <andreip@google.com>
CC: Anne van Kesteren <annevk@opera.com>, "public-device-apis@w3.org" <public-device-apis@w3.org>, Ben Murdoch <benm@google.com>
Message-ID: <753F67ADE6F5094C9F1DBA00D1BAA8D312D5B1502B@orsmsx501.amr.corp.intel.com>
Isn't H.263 the most commonly used format for video conferencing/chat?
I have no idea about any patent issue with this codec.

Thanks
Dzung Tran, 

-----Original Message-----
From: public-device-apis-request@w3.org [mailto:public-device-apis-request@w3.org] On Behalf Of Ian Hickson
Sent: Wednesday, December 16, 2009 09:47 AM
To: Andrei Popescu
Cc: Anne van Kesteren; public-device-apis@w3.org; Ben Murdoch
Subject: Re: <device> proposal (for video conferencing, etc)

On Wed, 16 Dec 2009, Andrei Popescu wrote:
> >> > If I understand the example correctly, the video element will show 
> >> > the output of the user's camera (i.e. act as an embedded camera 
> >> > viewport). To be able to implement video chat, we also need a way 
> >> > to see the remote party, so we need a way to send the Stream over 
> >> > to some server.  I think we should specify the mechanism for doing 
> >> > that (e.g. WebSockets::send(Stream stream)).
> >>
> >> I believe this is the plan yes, if the general proposal can be made 
> >> to work.
> >
> > Indeed. The problem is that this requires a chosen codec, and we don't 
> > have one. That's why I stopped where I did.
> 
> Perhaps I am missing something, but this requirement isn't entirely 
> obvious to me :) Why do we need to agree on a codec any more than we 
> needed for the <video> tag?

We need to for <video> also.

However, in this case we need to even more, because otherwise there's no 
guarantee that a user with one browser could chat to a user with another 
browser, which makes the whole exercise pointless.

-- 
Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'
Received on Wednesday, 16 December 2009 19:11:24 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Wednesday, 9 May 2012 00:14:03 GMT