On Wed, 15 Sep 2010 10:26:29 +0200, Nicklas Sandgren <nicklas.sandg...@ericsson.com> wrote:

Hello,

A typical video chat application would contain some view finder code similar to
the example in the Working Draft document:

<p>To start chatting, select a video camera: <device type=media onchange="update(this.data)"></p>
<video autoplay></video>
<script>
function update(stream) {
   document.getElementsByTagName('video')[0].src = stream.url;  }
</script>

But assuming that the Stream is a combination of both audio and video media this is actually not what you want in a video chat, because you will also play back your own
audio to yourself.

To solve this in our implementation we defined two fragments, "audio" and "video", for the Stream url. The application then can address a specific media component
in the Stream like this:

document.getElementsByTagName('video')[0].src = stream.url + "#video";

Is there some other way to solve this?

You could mute the video element with document.getElementsByTagName('video')[0].muted = true; (although a muted="" attribute is probably also going to be added so you can do <video autoplay muted>).


Anyone curiuos can find more information on what we have been experimenting with here:
https://labs.ericsson.com/blog/beyond-html5-conversational-voice-and-video-implemented-webkit-gtk

br
Nicklas Sandgren


Cheers,
--
Simon Pieters
Opera Software

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