private void sendToken()
{
if (_usher.Streams.Count == 0)
return;
AmfWriter writer = new AmfWriter();
writer.WriteString("NetStream.Authenticate.UsherToken");
writer.WriteNumber(0);
writer.WriteNull();
writer.WriteString(_usher.Streams[0].Token);
RtmpSharp2.Abstract.CommandMessage message = new CommandMessage(writer);
SendMessage(message);
SendMessage(new CreateStream());
SendMessage(new Play(_usher.Streams[0].PlayStream));
}