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7th December 2019, 16:19 | #7221 | Link | |
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I've gathered those parameters from many sources, and honestly have mostly no clue about the impact. Something like this? --preset slow --vbv-maxrate 20000 --deblock=-4:-1 --amp --aq-strength 0.85 --qcomp 0.7 --selective-sao 1 --rskip --output-depth 10 --Aq-mode 3 I don't care about grain. Grain is IMO just noise. And while I understand that old material just has to have grain I don't understand why there is grain in newer material. If grain can be reduced without having other negative effects on a movie, that would also be fine. I don't analyze still pics, I don't see a point there. I'm not watching still pics. would the above be a good compromise, sufficient, or is there more to fine tune? -roland |
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7th December 2019, 17:19 | #7222 | Link | |
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Perhaps keep AQ strength at the default of 1.0 for the time being. You really need 2-pass and short scene tests to find the optimal value. Last edited by markiemarcus; 7th December 2019 at 17:30. |
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7th December 2019, 17:20 | #7223 | Link |
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Losing grain means also losing details, but --selective-sao 1 probably helps with that. SAO used to be one option to disable (I still disable it completely myself), because it just smoothed everything. Otherwise, your settings should be a good basis. I don't know much about the inner workings of the deblocking feature, but I use --deblock -2:-2 myself.
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7th December 2019, 17:40 | #7224 | Link | |
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8th December 2019, 01:54 | #7225 | Link | |
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--vbv-maxrate 15000 --deblock=-2:-2 --amp --aq-strength 0.85 --selective-sao 1 --rskip --output-depth 10 --aq-mode 3 with CRF 18-22 in 1.0 steps. CRF 18 results in 5.1Mbit/s (the original has 37Mbit), but all still have the same issue. Anything else that can help? Obviously otherwise only using very high bitrate might solve this or not re-encoing at all or accepting that this might happen. |
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8th December 2019, 06:37 | #7226 | Link | |
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I take it you're running the latest build? In the interest of narrowing the problem down, maybe try the "slower" preset. I'd also see if --qg-size 64 can help and there's always good old Aq-mode 1. Is the source very grainy? Last edited by markiemarcus; 8th December 2019 at 06:48. |
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8th December 2019, 10:13 | #7227 | Link |
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Have you checked the original closely so that it doesn't have the same issue there? Re-encoding could easily amplify it.
It could be worth a try applying an anti-banding filter just to see if it changes the situation.
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And if the band you're in starts playing different tunes I'll see you on the dark side of the Moon... |
8th December 2019, 12:01 | #7228 | Link | |
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--vbv-maxrate 15000 --deblock=-2:-2 --amp --selective-sao 1 --rskip --output-depth 10 --aq-mode 3 --qg-size 64 --preset slower --crf 20 and --vbv-maxrate 15000 --deblock=-2:-2 --amp --selective-sao 1 --rskip --output-depth 10 --aq-mode 1 --qg-size 64 --preset slower --crf 18 yes, 3.2.0.18 still shows. It may be less, but still obvious Interesting part is that it only is that obvious on that region with black/purple texture it is grainy, but there is worse. does it help uploading the original and encoded clip? Onedrive working? |
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8th December 2019, 12:01 | #7229 | Link | |
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I have no idea how to apply such a filter |
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8th December 2019, 13:33 | #7230 | Link |
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A source clip can always be useful. Easier to see what's really happening.
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And if the band you're in starts playing different tunes I'll see you on the dark side of the Moon... |
8th December 2019, 16:00 | #7231 | Link | |
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https://1drv.ms/u/s!AuVhsELqus7qlI9E...GSG-g?e=GuXnag cheers, roland |
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8th December 2019, 17:30 | #7232 | Link | |
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And if the band you're in starts playing different tunes I'll see you on the dark side of the Moon... |
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8th December 2019, 19:44 | #7233 | Link | |
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But I've just changed the monitor I play the video on and the other isn't doing it, at least I can't see it. When using another preset on the first display, I also don't see it anymore. Can just the preset of a monitor cause that? (I don't watch them on those, they are just for checking) |
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8th December 2019, 21:26 | #7234 | Link |
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Yes, it's very much possible. Different calibrations or settings can change the image a lot, so you're always on the safe side if you can check it on the display where you will be watching the final video. Of course, for most of us it's not very convenient.
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And if the band you're in starts playing different tunes I'll see you on the dark side of the Moon... |
9th December 2019, 00:05 | #7236 | Link | |
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Default RDOQ and Psy settings: https://i.ibb.co/vBbXhkh/Psy2-RDOQ1.png RDOQ Level 0, Psy-rd 5: https://i.ibb.co/cFK5JhV/RDOQLevel0-Psy5.png Aq mode 1 is coming out ahead for me. Default AQ strength seems fine. Grain motion in the exterior shots is definitely helped with --rd 6. Last edited by markiemarcus; 9th December 2019 at 00:58. |
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