<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> </head> <body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif; "> <div> <div> <div>A few weeks back a posting asked about building a frame (video I think)  consisting of one byte or many copies of one byte that could be injected into a stream on the sender side and picked out on the receiver side of a network connection (UDP?).  The goal was to pass "hidden" in-band data along with the frame.</div> </div> </div> <div><br> </div> <div>First, can someone point me to those post(s)?  I tried, but Google as I might, I can't find a search pattern that will get to them.</div> <div><br> </div> <div>Secondly, is this a workable idea?  </div> <div><br> </div> <div>In my case, I am passing 2 way live audio (an intercom, mostly) so it has no built-in tag info I am aware of.  Could I just as easily add the stream info and "misuse" it as an in-band message passing method?</div> <div><br> </div> <div>The message info I need to pass is to a UDPSRC pipeline to tell it the port where a to-be-instantiated UDPSINK pipeline is to send its reply stream.  Goal is to avoid a lot of out-of-band info passing.</div> <div><br> </div> <div>Third, am I correct in believing that a padprobe on the receiver side could pick out the frame and by returning FALSE, remove it from the data stream without halting future packets?</div> <div><br> </div> <div>Wes</div> <br> <hr> <font face="Arial" color="Gray" size="1">CONFIDENTIALITY NOTE:<br> <br> This e-mail and any attachments are confidential. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of this e-mail or any attachment is prohibited. If you have received this e-mail in error, please notify us immediately by returning it to the sender and delete this copy from your system. Thank you for your cooperation.<br> </font> </body> </html>