<div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">чт, 14 дек. 2023 г., 03:24 Terje J. Hanssen <<a href="mailto:terjejhanssen@gmail.com">terjejhanssen@gmail.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>
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<div>Den 14.12.2023 01:03, skrev Andrew
Randrianasulu:<br>
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<div dir="auto">Installed SVT-AV1 1.5.0 from Slackbuilds on my
Slackware 15.0 i586
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<div dir="auto">it works, but at around 0.8 fps for 720p video</div>
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<div dir="auto">ffmpeg -i
MLP_animation_sleepsong_IeIDCNS-VUw.webm -s 1280x720 -an -f
yuv4mpegpipe - | SvtAv1EncApp -i - -b mlp.ivf --passes 1
--rc 1 --tbr 1000<br>
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<div dir="auto">after looking at code I see all asm there is
64bit :)</div>
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<div dir="auto">this explains why it is much faster on x86_64.</div>
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<div dir="auto">Anyway, even 0.8 fps is ok for short (few mins)
clips, I guess.</div>
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I did also notice: <br>
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<i>The encoder supports a wide range of speed-efficiency tradeoffs
and scales fairly well across many CPU cores.
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<a href="https://trac.ffmpeg.org/wiki/Encode/AV1#SVT-AV1" target="_blank" rel="noreferrer">https://trac.ffmpeg.org/wiki/Encode/AV1#SVT-AV1</a><br>
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<i>Since SVT-AV1 is designed to scale well across cores/processors,
fast encoding is
best performed on machines with a sufficient number of threads.</i><br>
<a href="https://gitlab.com/AOMediaCodec/SVT-AV1/-/blob/master/Docs/Ffmpeg.md#example-1-fastrealtime-encoding" target="_blank" rel="noreferrer">https://gitlab.com/AOMediaCodec/SVT-AV1/-/blob/master/Docs/Ffmpeg.md#example-1-fastrealtime-encoding</a></div></blockquote></div></div><div dir="auto"><br></div><div dir="auto">yeah, it encodes slightly faster on 8core arm/aarch64 tablet (up to 2.5 fps on 1440*1080p mpeg2 m2ts file).</div><div dir="auto"><br></div><div dir="auto">Still, when I copied our av1.webp profile under different name and replaced libaom part of first line with libsvtav1 (and removed rest of options) encode never finished? It never made it past 96%</div><div dir="auto"><br></div><div dir="auto">Not sure if it was termux-specific or cingg in general does not work with this specific encoder?</div><div dir="auto"><br></div><div dir="auto">I also tried rav1e in same way - using shared ffmpeg build already available on termux. It also not worked :(</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><br>
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