Phone/#55: Implement a video window

Bug report from khorben on 07/03/2012 08:20:17
Support for video calls should be planned, and code listing and previewing local video devices would be a good start (even experimental).

The addition of a plug-in, implementing a simple video window (possibly taking and sending screenshots) would be a good start.

FWIW, using the V4L2 API would have the advantage to work on Linux and NetBSD at least.