function VideoStream(url)
{
	Video.call(this);

	this.format = "url";
	this.encoding = FileSystem.getFileExtension(url);
	this.data = url;
}
Video stream resource, used to load streamable video files directly from URL.

@class VideoStream
@extends {Video}
@module Resources
@param {string} url URL to video file.
@param {string} encoding Image encoding, required for ArrayBuffer data.