rtsp stream using hash value and time

[cochin007]

Hi
Any idea how to capture url for the stream which gets called
after php page is called.The url keeps on changing based on the php
but once we click the stream works fine.

it comes in following format and keeps on changing on every click
for hash value and time

rtsp://173.193.9.71/site.tv?server_time=4/26/2012%207:38:21%20PM&hash_value=1+Hinqo6ddfIFVe2ET4 WJA==&validminutes=5



Pls help seniors.. Packet analyse didnt help
and url helpers shows this url