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10th March 2019, 12:30 | #1 | Link |
Registered User
Join Date: Aug 2014
Posts: 28
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Anime help
I was wondering if anyone could help me choosing some settings for anime content? I'm not looking for the best settings really, just something simple for both 1080 and 4k resolutions. I did look at some other posts that pertained to this topic, but I'm not sure if they still hold up since those posts were a few revisions ago.
This is what I use for live action: --preset slower --crf 18 --profile main10 --asm avx,avx512 --me 3 --subme 5 --no-sao --qcomp 0.7 --deblock -1:-1 I like to keep it simple if possible. Also, how bad is it quality and compression wise, that x265 uses 23 threads on a 4k encode? |
10th March 2019, 14:55 | #2 | Link |
Herr
Join Date: Apr 2009
Location: North Europe
Posts: 556
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Added to your live action setting, I hear that this is good to set for clean animation:
--ref 6 --bframes 16 --aq-strength 0.4 --psy-rd 0.4 --rdoq-level 0 --psy-rdoq 0 --tu-inter 4 --tu-intra 4 --limit-tu 4 IIRC, --ref 6 is the maximum refs for GPU-decoding compatibility, but I don't know how high resolution that is OK for. Maximum bframes (16) is great to set in clean animation, because the adjacent frames are often the same. There is also an x265-option: --tune animation but it basically sets that what I set, but less bframes. If the encoding is too slow, maybe set: --ctu 32 Use as low --frame-threads value as possible (2 or 3), but so that the encode hits near 100% CPU-usage. And colormatrix (if you can find it out with the program MediaInfo) is good to set, https://forum.doom9.org/showthread.php?t=176049 Remember that if your 4K source is HDR, then you need to add more options. Last edited by Forteen88; 10th March 2019 at 15:19. |
13th March 2019, 18:41 | #3 | Link | |
Registered User
Join Date: Aug 2014
Posts: 28
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Quote:
1) I can't seem to find tune animation for x265. I know x264 had it. 2) What do you suggest for highest --frame-threads? 3) Do you suggest aq mode 3? |
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14th March 2019, 01:23 | #4 | Link | |
Herr
Join Date: Apr 2009
Location: North Europe
Posts: 556
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Quote:
1. Here is some information about --tune animation https://x265.readthedocs.io/en/default/presets.html 2. I'm not that skilled at x265 to answer that. 3. If you have dark scenes in the source-video, --aq-mode 3 can help improve video-quality. Although I've read that some people think that it might not be good enough for dark scenes, so they use --zones to set higher bitrate at those scenes. |
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15th March 2019, 21:27 | #5 | Link |
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Join Date: Sep 2006
Posts: 1,657
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You may want to try the VMAF metric to find a best setting for you content.
https://forum.doom9.org/showthread.php?t=175862 First you start with an base encode like crf 23 medium. Then use the plugin to compare that encode to the source, it will then gives you a perceived visual score. Then you repeat this process with a different setting until you satisfied. |
16th March 2019, 00:49 | #6 | Link | |
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Location: Portland, OR
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21st March 2019, 06:58 | #9 | Link |
Derek Prestegard IRL
Join Date: Nov 2003
Location: Los Angeles
Posts: 5,988
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IMO VMAF is helpful, but probably not in this case. It's also a bit too "easy" when you're targeting transparency. I've seen encodes that are near 100 VMAF that are definitely not transparent when it comes to grain and fine detail preservation.
95+ VMAF is absolutely "good enough" for streaming services, but not UHD BluRay for example |
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