TechNote (Archived)

BitmapData.draw fails to capture streaming video

Issue

If you attempt to use BitmapData.draw to capture a Flash Video file (FLV) streamed from a Flash Media Server on a domain other than the domain in which the current Flash Player movie (SWF) is located, BitmapData.draw will fail to capture imagery from your video.

Reason

This is a security restriction imposed by Flash Player.

Solution

In Flash Player 8, BitmapData.draw will be able to capture video only if your FLV streams from a Flash Media Server on the same domain or subdomain as the web server that is serving up the SWF connecting to your Flash Media Server.

In Flash Player 9, this feature is obsolete, and streaming video cannot be captured by BitmapData.draw regardless of whether or not both the FLV and the SWF reside on the same domain or subdomain.