<html dir="ltr"><head></head><body style="text-align:left; direction:ltr;"><div>Le lundi 25 mars 2019 à 23:25 +0530, Saurabh Bora a écrit :</div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div dir="ltr">Ah..My Bad!!<div>Thanks for pointing it out Nicolas. I was able to see GST_TRACER logs</div><div><br></div><div>Actually, I am working on finding out latency for different elements in a live gstreamer pipeline which looks something like below:</div><div>v4l2src ! videoconvert ! vp8enc ! webrtcbin</div></div></blockquote><div><br></div><div>I'd be really happy if you give a try on what m y Colleague and I have been working on for a while. It's a enhancement of the latency trace to add per-element effective latency and also reported latency. With that you should be able to see if an element is using more latency when it's max reported latency allow. Meanwhile, I can give you a hint, vp8enc has variable latency, unless you set the dealine= property. That assumes you're CPU is fast enough.</div><div><br></div><div><a href="https://gitlab.freedesktop.org/gstreamer/gstreamer/merge_requests/118">https://gitlab.freedesktop.org/gstreamer/gstreamer/merge_requests/118</a></div><div><br></div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div dir="ltr"><div><br></div><div>As I am expecting to see output on the browser, I also need to find out end to end latency, from source(live camera feed) to destination(web browser). I believe enabling the environment variables would not suffice in this scenario.</div></div></blockquote><div><br></div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div dir="ltr"><div><br></div><div>Thanks and Regards,</div><div>Saurabh Bora</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Mar 25, 2019, 22:49 Nicolas Dufresne <<a href="mailto:nicolas@ndufresne.ca" target="_blank">nicolas@ndufresne.ca</a>> wrote:<br></div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex">Le lundi 25 mars 2019 à 22:16 +0530, Saurabh Bora a écrit :<br> > Hi, <br> > <br> > I followed the link <a href="https://gstreamer.freedesktop.org/documentation/design/tracing.html#print-processing-latencies" rel="noreferrer noreferrer" target="_blank">https://gstreamer.freedesktop.org/documentation/design/tracing.html#print-processing-latencies</a>, set the environment variables and ran the pipeline as follows:<br> > //--------------------------------------------------------------------------------------------------------------------------------<br> > export GST_DEBUG="GST_TRACERS:7"<br> <br> I'm sorry for this, but there is no S to that debug section (/o\)<br> <br> > export GST_TRACERS=latency<br> > gst-launch-1.0 audiotestsrc num-buffers=10 ! audioconvert ! volume volume=0.7 ! autoaudiosink<br> > <br> > Output:<br> > Setting pipeline to PAUSED ...<br> > Pipeline is PREROLLING ...<br> > Redistribute latency...<br> > Pipeline is PREROLLED ...<br> > Setting pipeline to PLAYING ...<br> > New clock: GstAudioSinkClock<br> > Got EOS from element "pipeline0".<br> > Execution ended after 0:00:00.237344143<br> > Setting pipeline to PAUSED ...<br> > Setting pipeline to READY ...<br> > Setting pipeline to NULL ...<br> > Freeing pipeline ...<br> > //----------------------------------------------------------------------------------------------<br> > <br> > The above output is exactly the same as the output that I get when environment variables are not set.<br> > Am I missing something here? What output must I expect?<br> > <br> > Help Appreciated...<br> > <br> > _______________________________________________<br> > gstreamer-devel mailing list<br> > <a href="mailto:gstreamer-devel@lists.freedesktop.org" rel="noreferrer" target="_blank">gstreamer-devel@lists.freedesktop.org</a><br> > <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br> <br> _______________________________________________<br> gstreamer-devel mailing list<br> <a href="mailto:gstreamer-devel@lists.freedesktop.org" rel="noreferrer" target="_blank">gstreamer-devel@lists.freedesktop.org</a><br> <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a></blockquote></div> </blockquote></body></html>