dual video feeds

As I mention in #metabug, it would be sweet to have two input video
feeds and the ability switch back and forth. The first feed would be
from a video camera on the presenter, so we can see them. The second
video feed would come directly off the presenters' laptop video output
(normally plugged into the large screen display for the room).

I've read over the specs for the DCRTRV120 video camera that Jason used
for the first MetaBUG streaming event. It does support output of
"Component Video" via three RCA plugs (left Audio, Right Audio, and
Video).

According to DWC, many of the room display systems connect to typical
RCA video output on laptops, so these will be easy to support with a
One-to-Two RCA splitter. Others, I suspect, hook to the DB15 or other
forms of laptop video output and will need to be dealt with later.

Since we generally have things down to RCA, we can use a cheap manual
switch box for flipping between video feeds. Such as...
http://www.ramelectronics.net/HTML/40-814.html

Running the RCA outputs of the switch box back into the MetaBug laptop,
is the only issue left to resolve but it isn't a big deal.

thoughts?

-jcr

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