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Originally Posted by Mjpeg
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Regarding the "poor results for AV1".
The BBC paper used single pass encode
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The parameters “--passes=1” and “--lag-in-frames=0” were set to run AV1 in single pass mode
without the possibility of looking ahead in the video sequence before encoding
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The Harmonic paper used a fixed GOP of less than a single second of video material
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--min-gf-interval=16 --max-gf-interval=16
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The Ateme paper does not mention any configuration for the encoder
That is basically three results that are only good for academic publication count and the gutter in the real world
On another note, there is a 5 minute 720p clip with super diverse content out there now on youtube where VP9 and AV1 version have basically the same file size:
https://www.youtube.com/watch?v=WaWnLiffxJ4
You can do some direct comparison of quality