Live mode do not support gstreamer streams

[erdtmann]

Gstreamer is the default method of input/output of multimedia in gnome desktop, and, as such, it should be used as the default in Harpia. I know there is some limits to the opencv library, yet, standardization rlz.

A gstreamer sink/source implementation is indeed feasible, and after a quick research on google I found some promising ways of doing it:

https://launchpad.net/gst-opencv

By now I can only have a workaround, that is to use the v4lsink I just found (I tested and it have worked):

http://code.google.com/p/v4lsink/wiki/HowToUse
(and the also needed:)
http://code.google.com/p/v4l2loopback/wiki/HowToUse

This will create a new v4l device (/dev/video1, for example), which is currently the only kind of input supported by the live video mode.