ActionScript for Flash MX: The Definitive Guide, 2nd Edition By Colin Moock
Chapter 18. ActionScript Language Reference
capabilities.hasVideoEncoder Property
Flash 6
indicates whether the system can encode video
read/write
System.capabilities.hasVideoEncoder
Description
The Boolean hasVideoEncoder property indicates whether the Player can encode a video stream (for example, coming from a webcam), normally for transmission to a server such as Macromedia Flash Communication Server MX (Comm Server). In the desktop version of Flash Player 6, hasVideoEncoder is always true, indicating that video encoding is available. This does not guarantee, however, that the necessary hardware (such as a webcam) is present.
The corresponding server string for hasVideoEncoder is VE, with possible values of t (true) and f (false). See capabilities.serverString for details.