Outbound Packet Processing

When receiving outbound RTP packets for processing, the fewest number of operations possible must be performed in order to make a decision on whether or not the packet should be immediately accepted for continued routing or if it must be held for modification. In the SteganRTP reference implementation, the packet is received and then all active outbound file descriptors are polled for data waiting to be sent. If no data is waiting to be sent, the packet is then accepted for continued routing by the packet queue.