<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;"> <p><span>I am streaming from a server to a client, and in the server I use a gstreamer pipeline (essentially videotestsrc ! x264enc ! rtph264pay) and an RTSP server. At the moment I'm able to figure what are the latencies at each element of the gstreamer pipeline by printing/tracing . I also know the end-to-end latency using black box testing. However, what I don't know is the time it takes for these RTP packets to travel through the network. More precisely, I want to measure the round trip time of an RTP packet as it leaves the rtph264pay element. If I'm using a gstreamer pipeline in the client also, if I'm using a udpsrc in the client, I want to measure the time from rtph264pay (in server) to udpsrc in the client. This includes network interrupts and the actual network path. I also want to know the time these packets spend in the kernel due to network interrupts. Is this possible? </span><br> </p> <p><span><br> </span></p> <p><span>Thanks,</span></p> <p><span>-Aswin</span></p> </div> </body> </html>