Convert renderer.material.mainTexture to Webcamtexture

I'm sure most people who read this think the question title is backwards.

Yes, I AM trying to obtain Webcamtexture from renderer.material.mainTexture.

Let me explain....

I have one HD webcam. From this webcam I obtain a WebCamtexture which I am using in an OpenCV application. The problem is I have to down res this texture in order to get good performance-playback.

I also need to display this webcam texture. But because of the poor quality it isn't usable.

So, I am using a second component to get high performance shader-based video renders(AVPro Live Camera). But I can't display the video feed from the identical webcam used for the OpenCV code. Not sure if this is a hardware or software limitation.

So 2 possible workarounds

1- Use 2 webcams!

or

2- use render texture to render the high quality AVPro webcamtexture to a lower res render texture material applied to a quad. Then somehow access this texture and reuse in the OpenCV code.

Does this make any sense?