<div dir="ltr"><div dir="ltr">Hello.<br><br>It looks like you want to calculate latency. I recommend to use `GST_TRACERS=<span style="background-color:transparent;color:inherit;font-family:Menlo,Monaco,Consolas,"Courier New",monospace;font-size:inherit;white-space:pre-wrap">latency(flags=pipeline+element+reported)`.
</span></div><br>Then you can obtain a summary with <a href="https://manpages.ubuntu.com/manpages/jammy/man1/gst-stats-1.0.1.html">https://manpages.ubuntu.com/manpages/jammy/man1/gst-stats-1.0.1.html</a><div><a href="https://gstreamer.freedesktop.org/documentation/additional/design/tracing.html?gi-language=c#latency">https://gstreamer.freedesktop.org/documentation/additional/design/tracing.html?gi-language=c#latency</a></div><div><br></div><div> Other thing you can do is to play with GST_DEBUG=GST_BUFFER:6 environment variable, and check the log timestamps and compare against buffer timestamp. You can use gst-launch-1.0 -v and the identity silent=false element to not get lost in logs.<br><br>Finally, other option is for sure to write your own element.<br><br>Regards,<br>Fabián O.<br><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, May 26, 2023 at 1:45 PM Andrés Meseguer Valenzuela via gstreamer-devel <<a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-4372951857546141398">





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<p class="MsoNormal"><span lang="EN-US">Dear community,<br>
I am using a gstreamer pipeline to send UDP video stream raw rgb and a python code to receive it and use it with opencv.
<br>
I would like to know about some manner to print a timestamp when each frame is sent and a timestamp when each frame is received so I can get the time difference.
<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Please, let me know any solution,<br>
thank you for your time. <u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Best regards,<u></u><u></u></span></p>
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<p class="MsoNormal"><b><i><span lang="EN-GB" style="font-size:9pt;font-family:Helvetica;color:rgb(64,64,64)">Andrés Meseguer Valenzuela</span></i></b><i><span lang="EN-GB" style="font-size:9pt;font-family:Helvetica;color:rgb(64,64,64)"><br>
R&D Engineer<br>
Advanced Communications Research Group </span></i><span lang="EN-GB" style="font-size:9pt;font-family:Helvetica;color:black"><br>
 <br>
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</div></blockquote></div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div>Fabián Orccón<br></div><a href="https://cfoch.github.io/" target="_blank">https://cfoch.github.io/</a><br></div></div></div></div>