Fix for surface-loss problem

GMBridge build is available, with a fix for surface loss issues that have been reported by a number of people.

What I believe happens is the following:

The problem is that bridge controller does not handle the stop and restart correctly while still bridged. I've modified the sink filter to detect a stop and restart while still bridged, and on the next data delivery it will trigger the bridge source's reconnect logic, so the timestamps will be mapped correctly.

28 April 2009