<html dir="ltr"><head></head><body style="text-align:left; direction:ltr;"><div>Le lundi 25 mars 2019 à 21:50 +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">Hi, <div>As suggested I added the property deadline=1 to the pipeline</div><div>gst-launch-1.0 videotestsrc ! autovideoconvert ! vp8enc deadline=1 ! vp8dec ! autovideosink</div><div><br></div><div>Still video streaming lags significantly when vp9 encoder is used.</div><div><br></div><div>Can you please help understand when must one use vp9 over vp8 and vice versa?</div><div>Or is there a way to use vp9 encoder and achieve same performance as that of vp8 encoder?</div></div></blockquote><div><br></div><div>VP9 is a much more complex CODEC. Did you consider of checking your CPU usage ? Maybe your CPU is just not fast enough for real-time vp9.</div><div><br></div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Mar 25, 2019 at 8:35 PM Nicolas Dufresne <<a href="mailto:nicolas@ndufresne.ca">nicolas@ndufresne.ca</a>> wrote:<br></div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div style="text-align:left;direction:ltr"><div>Le lundi 25 mars 2019 à 18:35 +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"><div dir="ltr">Hi Experts!<div><br></div><div>I am using a dummy pipeline below to test performance of vp8 encoder v/s vp9 encoder<br></div><div>gst-launch-1.0 videotestsrc ! autovideoconvert ! vp8enc ! vp8dec ! autovideosink<br></div><div><br></div><div>Just replace vp8 by vp9 to use vp9 encoder in the pipeline.</div><div><br></div><div>My observation is that, video streaming in case of vp9 encoder lags significantly as compared to vp8 encoder.<br></div><div><br></div><div>Can you please help me understand, when should one use vp9 over vp8 or vice versa?</div></div></div></blockquote><div><br></div><div>For live streaming with vp8/vp9 encoder, you could configured the deadline, otherwise the encoder will run in "offline" mode and will take quite variable amount of time per frame and may not be real-time in the end. Try deadline=1 as an example.</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 dir="ltr"><div><br></div><div>-- <br><div dir="ltr" class="gmail-m_-406635901498439825gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Thanks and Regards,</div><div dir="ltr">Saurabh Bora<br><div><br></div><div>PH NO : 7038166900</div><div>EMAIL : <a href="mailto:saurabh9bora@gmail.com" style="font-size:12.8px" target="_blank">saurabh9bora@gmail.com</a></div><div> <a href="mailto:saurabh9bora@outlook.com" target="_blank">saurabh9bora@outlook.com</a></div></div></div></div></div></div></div></div></div></div></div></div> <pre>_______________________________________________</pre><pre>gstreamer-devel mailing list</pre><a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank"><pre>gstreamer-devel@lists.freedesktop.org</pre></a><br><a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank"><pre>https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</pre></a></blockquote></div> _______________________________________________<br> gstreamer-devel mailing list<br> <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank">gstreamer-devel@lists.freedesktop.org</a><br> <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a></blockquote></div><br clear="all"><div><br></div><pre>_______________________________________________</pre><pre>gstreamer-devel mailing list</pre><a href="mailto:gstreamer-devel@lists.freedesktop.org"><pre>gstreamer-devel@lists.freedesktop.org</pre></a><pre><br></pre><a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel"><pre>https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</pre></a></blockquote></body></html>