HD Webcam Support

[John]

Hi:

We currently have a project on that heavily uses getUserMedia in
Chrome to access the computers WebCam with the ultimate goal of
capturing high resolution images.

We are using a HD Logitech WebCam that supports full 1080p but it
appears it is defaulting to VGA (640x480) in Canary (even less in the
current Chrome release).

Is there a method to increase the capture/stream size? I don't mind a
custom Chromium build as this is for an installation that we have
total control over.

P.S. I have been put your way by Paul Kinlan @ Google.

Many thanks:


John Harding

[pRo]

As far as I know, webrtc does not support hardware encoding(H.264)
when capturing videos. And some HD WebCam can only support full 1080P
in the existence of hardware encoding, simply because USB2 can't catch
up with the captured uncompressed data rate.

So webrtc probably can do 720p at low fps, but probably not full 1080p
at 30fps or even 15fps.

[Ivan Vučica]

I'm curious, isn't getting the image solved at the OS level? Should it matter whether the client application itself can understand h264? 

Shouldn't the driver in the operating system decode the data stream and serve just the RGB/YUV image, no matter how the video comes on the physical layer (across the wire)?

--
Ivan Vučica - iv...@vucica.net

[Serge Lachapelle]

Hi John!

We have not yet implemented a way to change the webcam resolution. We have made a proposal to the community on how to handle it, and hope to start implementing some kind of early support soon. So for now, it's VGA only.

The proposal can be found here: http://www.ietf.org/mail-archive/web/rtcweb/current/msg04094.html Your feedback is welcomed.

/Serge