Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion. Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules. |
14th January 2017, 16:21 | #4621 | Link |
Registered User
Join Date: May 2015
Posts: 68
|
^^ To answer my own request, I did encodes using the same settings that @qtwigg did, and here are the results:
UMH: Final size: 87.433 MB Bitrate: 6419.42 kb/s Avg QP:26.42 FPS: 2.36 STAR: Final size: 87.491 MB Bitrate: 6423.67 kb/s Avg QP:26.42 FPS: 3.34 SEA: Final size: 87.5992 MB Bitrate: 6431.62 kb/s Avg QP:26.41 FPS: 0.72 Did not do Full. Is there a GUI tool that can measure SSIM for clips encoded with 10 bit x265? I'd like to add that info as well. Visually, I can't tell the difference between any of the above. |
18th January 2017, 14:24 | #4624 | Link |
Registered User
Join Date: Dec 2005
Location: Germany
Posts: 1,795
|
I get some kind of strange banding with the latest x265 version.
input/output is 10bit. It is a high motion scene and the difference in bitrate/filesize is about 16% (the x265 encode is smaller) But this "banding" appears also (less visible) in static scenes where is no movement. Is there something to reduce the "banding"? Code:
x265 2.2+22-20217c8af8ac:[Windows][GCC 6.3.0][64 bit] 10bit --crf 18 --no-strong-intra-smoothing --rd 6 --rd-refine --psy-rd 2.6 --aq-motion --me star --psy-rdoq 2 --opt-cu-delta-qp --tu-inter-depth 4 --tu-intra-depth 4 --preset veryslow --output-depth 10 --deblock -3:-3 --qpstep 6 --min-keyint 1 --ref 6 --bframes 12 --subme 5 --limit-refs 3 --aq-mode 3 --aq-strength 0.8 --ctu 64 --min-cu-size 8 --rect --amp It's also visible with --medium, but also very blurry compared to the x264 version on the left. Code:
--crf 18 --preset medium --output-depth 10 --input-depth 10
__________________
AVSRepoGUI // VSRepoGUI - Package Manager for AviSynth // VapourSynth VapourSynth Portable FATPACK || VapourSynth Database Last edited by ChaosKing; 18th January 2017 at 14:52. |
18th January 2017, 14:43 | #4625 | Link |
German doom9/Gleitz SuMo
Join Date: Oct 2001
Location: Germany, rural Altmark
Posts: 6,782
|
These images are huge. Please try to link them via thumbnails, or URLs only...
If this issue appears suddenly, from a specific version on, it may be a regression or a newly introduced bug to be investigated. But your command line is a bit nonsensical. First of all, if you start with simple parameters, and then use a preset meta-parameter in the middle, this will probably override several previous simple parameters with preset defaults. Furthermore, why so many, do you need a preset at all if you define more or less every single option? And their relation to each other and the video content ... you mostly disable smoothing to retain details – for anime content?! That's paradox. In this case, your nickname is quite matching ... |
18th January 2017, 15:02 | #4626 | Link |
Registered User
Join Date: Dec 2005
Location: Germany
Posts: 1,795
|
Yes some are redundant bcs I started without the preset parameter.
I'm still testing out different parameters. Not all animes look like cartoons and x265 tends to smooth the image/details. I will test out an older version and report back.
__________________
AVSRepoGUI // VSRepoGUI - Package Manager for AviSynth // VapourSynth VapourSynth Portable FATPACK || VapourSynth Database |
18th January 2017, 18:30 | #4628 | Link |
Registered User
Join Date: Nov 2004
Posts: 227
|
@ChaosKing --can you give me a link to the source via PM or provide a link to a problematic sequence? I'd like to test it with my settings, since I don't see much added banding in my own encodes even at higher CRF.
Last edited by Leo 69; 18th January 2017 at 18:32. |
19th January 2017, 01:10 | #4629 | Link |
Registered User
Join Date: Dec 2005
Location: Germany
Posts: 1,795
|
I tested with some older build 2.2+7 & 2.1+74, but I can see banding artefacts here too. I used just the --preset veryslow paramter (10bit) & then slightly increased rsy-rd and rdoq.
It seems that the higher rd-psy/rdoq is set, the sharper the image looks and the more banding is visible. (But it was just a quick test, will make furher tests with different scenes) @Leo 69 I've send you a pm.
__________________
AVSRepoGUI // VSRepoGUI - Package Manager for AviSynth // VapourSynth VapourSynth Portable FATPACK || VapourSynth Database Last edited by ChaosKing; 19th January 2017 at 01:18. |
19th January 2017, 08:12 | #4630 | Link |
German doom9/Gleitz SuMo
Join Date: Oct 2001
Location: Germany, rural Altmark
Posts: 6,782
|
Sounds rather credible to me... psychovisual RD enhancements were described as taking energy from some areas with higher energy (edges and other details) and distributing it to the surrounding areas with lower energy (little detail). For cartoons, this would probably mean to take the energy from the edges of black lines and distribute it into the flat color areas. So they get undesired stripes in the same direction as close black lines.
As useful as a feature may be for natural video content, as inadequate it may turn out for artifical content. There is never one perfect set of parameters for all video content. |
19th January 2017, 09:12 | #4632 | Link |
German doom9/Gleitz SuMo
Join Date: Oct 2001
Location: Germany, rural Altmark
Posts: 6,782
|
I believe that cartoons should prefer rather higher than lower deblocking parameters, and rather enabled smoothing. But that will have to be tested. There is no "animation tuning" yet. But I believe there have been proposals already...?
|
20th January 2017, 01:10 | #4633 | Link |
Registered User
Join Date: Dec 2005
Location: Germany
Posts: 1,795
|
I did some more testing, but still have some banding in my encodes.
x264 bitrate ~6000 kb/s Code:
--preset veryslow --crf 18 --psy-rd 0.7 --aq-mode 3 Code:
--preset veryslow --crf 15 --psy-rd 0.5 --aq-mode 3 http://i.imgur.com/AyO8lHu.png I also tried ssim-rd, 5777kb/s Code:
--preset veryslow --crf 15.5 --rd 6 --ssim-rd --aq-mode 3 with more contrast for whose with bad monitors http://i.imgur.com/dH4c99b.png @LigH From that I read in all the threads and forums -> use -1,-2 or -3 deblocking and higher psy values, so that the image will remain sharp similar to x264 encodes. (also for animes)
__________________
AVSRepoGUI // VSRepoGUI - Package Manager for AviSynth // VapourSynth VapourSynth Portable FATPACK || VapourSynth Database |
20th January 2017, 01:44 | #4635 | Link |
Registered User
Join Date: Dec 2005
Location: Germany
Posts: 1,795
|
No I'm not obsessed. I just want to show which "problems" I found so maybe the devs can look into it and hopefully fix or improve it.
I just find it a bit strange what a bit higher psy/rdoq values causes visible worm/banding like artifacts. ok, perhaps the paramter is also just very sensitive, but I just think there is room for improvement. Maybe it is not that much visible on your screen, but on my Dell U2515H (factory calibrated) I can clearly see them. Of course much less than in my first encode with higher psy settings. The thing is I was so happy with the quality at first, because it looked very good and the image was not blurry at all, like in my previous encode (compared to x264). But after watching some minutes I saw weird looking edges and color gradients ...
__________________
AVSRepoGUI // VSRepoGUI - Package Manager for AviSynth // VapourSynth VapourSynth Portable FATPACK || VapourSynth Database Last edited by ChaosKing; 20th January 2017 at 02:25. |
20th January 2017, 09:21 | #4636 | Link | |
Registered User
Join Date: Nov 2004
Posts: 227
|
Quote:
Your point is ridiculous. |
|
20th January 2017, 13:33 | #4638 | Link | |
ffx264/ffhevc author
Join Date: May 2007
Location: /dev/video0
Posts: 1,844
|
Quote:
|
|
20th January 2017, 20:39 | #4639 | Link | |
Registered User
Join Date: Oct 2001
Location: Germany
Posts: 7,277
|
Quote:
|
|
21st January 2017, 23:16 | #4640 | Link |
Registered User
Join Date: Dec 2014
Posts: 666
|
Guys,
I just would like to confirm if I need to turn off cutree if I'll be using and of the ff CLI: --multi-pass-opt-rps --multi-pass-opt-analysis --multi-pass-opt-distortion
__________________
Asus ProArt Z790 - 13th Gen Intel i9 - RTX 3080 - DDR5 64GB Predator - LG OLED C9 - Yamaha A3030 - Windows 11 x64 - PotPlayerr - Lav - MadVR |
|
|