public loopback : Boolean [read-only]
A Boolean value that specifies whether a local view of what the camera is capturing is compressed (true) (as it would be when transmitted by the server) or uncompressed (false). The default value is false.
To set this value, use Camera.setLoopback(). To set the amount of compression used when this property is true, use Camera.setQuality().
Flash Media Server (not required); Flash Player 6.
See the example for Camera.setLoopback().