The NetStream class opens a one-way streaming channel over a NetConnection.
Call NetStream.play() to play a media file from a local disk, a web server, or Flash Media Server.
Call NetStream.publish() to publish a video, audio, and data stream
to Flash Media Server.Call NetStream.send() to send data messages to all subscribed
clients.Call NetStream.send() to add metadata to a live stream.
Call NetStream.appendBytes() to pass ByteArray data into the
NetStream.