<div dir="ltr"><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Aug 12, 2020 at 8:07 AM Evert Vorster <<a href="mailto:evorster@gmail.com">evorster@gmail.com</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 dir="ltr"><div dir="ltr">Hey Paul. <div><br></div><div>There are ways to use GPU rendering in the output. However you typically exchange quality for speed & size. </div><div><br></div><div><br></div><div><br></div><div>ie: rendering out at q=26 on software looks better than rendering out at q=26 on hardware. </div><div><br></div><div>This is because the software encoders are more mature and can use features in the CPU that the GPU cannot.</div><div><br></div></div></div></blockquote><div><br></div><div>This is not necessarily always true as of the 6th generation Turing NVENC. It is generally considered now as good as x264 and x265 at medium preset:</div><div><a href="https://developer.nvidia.com/blog/turing-h264-video-encoding-speed-and-quality/">https://developer.nvidia.com/blog/turing-h264-video-encoding-speed-and-quality/</a></div><div><a href="https://unrealaussies.com/tech/nvenc-x264-quicksync-qsv-vp9-av1/7/#NVENC-Part-2">https://unrealaussies.com/tech/nvenc-x264-quicksync-qsv-vp9-av1/7/#NVENC-Part-2</a></div><div>(you can find more studies)<br></div><div><br></div><div>Turing cards are RTX 20xx and GTX 1650 Super:<br></div><div><a href="https://en.wikipedia.org/wiki/Nvidia_NVENC#Sixth_generation,_Turing_TU10x/TU116">https://en.wikipedia.org/wiki/Nvidia_NVENC#Sixth_generation,_Turing_TU10x/TU116</a></div><div><br></div><div>If you want to use HEVC to limit size while maximizing quality, Turing NVENC HEVC makes a lot of sense since it is so much faster than x265 or vp9. If you are going to output H.264 I think it is less compelling considering the speed of x264.<br></div><div><br></div><div><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 dir="ltr"><div dir="ltr"><div></div><div>Here is a profile that I was using to test nvenc:</div><div><p style="white-space:pre-wrap;color:rgb(0,0,0);font-size:medium;margin:0px">properties=x264-medium f=mp4 vcodec=h264_nvenc acodec=aac g=120 crf=%quality ab=%audiobitrate+'k'<br></p></div><div><br></div><div><div><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><br></div><div>Kind regards,</div><div>Evert Vorster<br>Awesome Chapters Tours</div><div><a href="http://www.awesomechapters.com" target="_blank">http://www.awesomechapters.com</a></div><div>Tel: +264 (0) 811477690<br></div></div></div></div></div></div></div></div></div></div></div></div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, 12 Aug 2020 at 17:01, Paul Smith <<a href="mailto:paulsrsmith@live.co.uk" target="_blank">paulsrsmith@live.co.uk</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">
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Hi,
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<div>I really like KdenLive. Seems pretty intuitive to use. The on;y thing I couldn't quite figure out going through the settings is, does it use the Nvidia GPU for rendering? If not is that something on the horizon? If so I'm happy to donate towards it's development.</div>
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<div>Kind Regards</div>
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<div>Paul</div>
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