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#1621 | Link | |
Registered User
Join Date: Feb 2003
Location: New York, NY (USA)
Posts: 82
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#1622 | Link |
ангел смерти
![]() Join Date: Nov 2004
Location: Lost
Posts: 9,562
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I'd like to solicit opinions on splitting this thread up, especially into aom, rav1e, dav1d, still image (avif) news, as well as solicitations to get the best quality command lines. I'd like to create a separate AV1 forum entirely at this point, but one megathread does not a forum make.
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#1623 | Link | |
I am maddo saientisto!
Join Date: Aug 2018
Posts: 103
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Quote:
Code:
Actual profile: Spearman: | Kendall: PSNRHA 0.938 | PSNRHA 0.787 PSNRHMA 0.934 | PSNRHMA 0.777 PSNRHVS 0.926 | PSNRHVS 0.766 PSNRHVSM 0.917 | PSNRHVSM 0.749 FSIMc 0.915 | FSIMc 0.742 FSIM 0.911 | FSIM 0.736 WSNR 0.897 | WSNR 0.718 MSSIM 0.887 | MSSIM 0.697 VSNR 0.882 | VSNR 0.690 VMAF_v0.6.1 0.863 | VMAF_v0.6.1 0.675 VMAF_rb_v0.6.3 0.862 | VMAF_rb_v0.6.3 0.674 NQM 0.857 | NQM 0.666 PSNR 0.825 | PSNR 0.624 VIFP 0.815 | VIFP 0.621 PSNRc 0.803 | PSNRc 0.596 SSIM 0.788 | SSIM 0.577 Simple profile: Spearman: | Kendall: PSNRHA 0.953 | PSNRHA 0.818 PSNRHVS 0.951 | PSNRHVS 0.809 FSIM 0.949 | FSIM 0.795 FSIMc 0.947 | FSIMc 0.792 PSNRHVSM 0.938 | PSNRHMA 0.785 PSNRHMA 0.937 | PSNRHVSM 0.780 WSNR 0.933 | WSNR 0.772 PSNR 0.913 | PSNR 0.745 VSNR 0.912 | VSNR 0.731 MSSIM 0.905 | MSSIM 0.720 VIFP 0.897 | VIFP 0.714 VMAF_rb_v0.6.3 0.891 | VMAF_rb_v0.6.3 0.698 VMAF_v0.6.1 0.889 | VMAF_v0.6.1 0.696 PSNRc 0.876 | PSNRc 0.689 NQM 0.875 | NQM 0.681 SSIM 0.837 | SSIM 0.628 Full profile: Spearman: | Kendall: FSIMc 0.851 | FSIMc 0.666 PSNRHA 0.819 | PSNRHA 0.643 PSNRHMA 0.813 | PSNRHMA 0.631 FSIM 0.801 | FSIM 0.629 MSSIM 0.787 | MSSIM 0.607 VMAF_rb_v0.6.3 0.749 | VMAF_rb_v0.6.3 0.564 VMAF_v0.6.1 0.748 | VMAF_v0.6.1 0.563 PSNRc 0.687 | VSNR 0.508 VSNR 0.681 | PSNRHVS 0.507 PSNRHVS 0.654 | PSNRc 0.496 PSNR 0.640 | PSNRHVSM 0.481 SSIM 0.637 | PSNR 0.470 NQM 0.635 | NQM 0.466 PSNRHVSM 0.625 | SSIM 0.463 VIFP 0.608 | VIFP 0.456 WSNR 0.580 | WSNR 0.446 Code:
ffmpeg.exe -i i01_01_1.bmp -vf "scale=flags=accurate_rnd+bitexact+full_chroma_int+full_chroma_inp,format=yuvj444p" i01_01_1.bmp.yuv vmafossexec.exe yuv444p 512 384 reference_images/i01.bmp.yuv distorted_images/i01_01_1.bmp.yuv model/vmaf_v0.6.1.pkl vmafossexec.exe yuv444p 512 384 reference_images/i01.bmp.yuv distorted_images/i01_01_1.bmp.yuv model/vmaf_rb_v0.6.3/vmaf_rb_v0.6.3.pkl --ci A note on how to read the numbers: from the paper I get the following: a SROCC of 0.95 is considered excellent, 0.90 is good, and 0.85 is barely acceptable. Last edited by SmilingWolf; 20th April 2019 at 19:09. |
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#1624 | Link | |
Registered User
Join Date: Jun 2016
Posts: 55
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#1625 | Link | |
VP Strategy, Beamr
Join Date: Jan 2018
Location: Palo Alto, CA
Posts: 50
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#1626 | Link | |
Registered User
Join Date: Aug 2010
Location: Athens, Greece
Posts: 2,901
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Quote:
Probably a separation of AV1 encoding and AV1 decoding would be more than enough for AV1 codec.
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Win 10 x64 (19042.572) - Core i5-2400 - Radeon RX 470 (20.10.1) HEVC decoding benchmarks H.264 DXVA Benchmarks for all |
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#1627 | Link |
Registered User
Join Date: Nov 2003
Posts: 1,272
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Agreed. Not busy enough yet. You can come back after a couple of days and still might only have a full page to read.
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http://www.7-zip.org/ |
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#1628 | Link |
Registered User
Join Date: Aug 2009
Posts: 198
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VMAF isn't designed for still images, but they do provide the tools to create your own VMAF for specific use cases (e.g. anime on a phone screen, or video game cobtebt) so it surprises me that no one has taken the framework and applied it to still images yet.
It should in theory be able to fuse the results of those other still image tests and create something even better aligned with human reported scores than any one alone. Presumably not Netflix's main use case but you'd think they deliver enough still images to make it worthwhile since they already have the skills. |
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#1629 | Link | |
I am maddo saientisto!
Join Date: Aug 2018
Posts: 103
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Quote:
When calculating the SROCC for only the "compression" distortions (JPEG and J2K) these are the results: Code:
--- top 33% PSNRHA 0.9686 DSSIM -0.9683 PSNRHVS 0.9677 PSNRHMA 0.9651 PSNRHVSM 0.9603 FSIMc 0.9589 FSIM 0.9580 VMAF_rb_v0.6.3 0.9524 SSIMULACRA -0.9519 VMAF_v0.6.1 0.9505 WSNR 0.9468 --- middle MSSIM 0.9427 VIFP 0.9380 --- low 33% PSNRc 0.9200 CQM 0.9190 PSNR 0.9170 VSNR 0.9162 SSIM 0.9147 NQM 0.9023 |
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#1630 | Link |
Registered User
Join Date: Mar 2004
Posts: 1,011
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dav1d decoder v0.3.0 is out:
Changes for 0.3.0 'Sailfish': ------------------------------ This is the final release for the numerous speed improvements of 0.3.0-rc. It mostly: - Fixes an annoying crash on SSSE3 that happened in the itx functions |
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#1631 | Link |
Registered Developer
Join Date: Mar 2010
Location: Hamburg/Germany
Posts: 10,044
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Just because someone updates the changelog doesn't mean it has been released already. You can see actual release tags here, hopefully to help avoid confusing premature announcements:
https://code.videolan.org/videolan/dav1d/tags There is no 0.3.0 yet. There will need to be one or two additional maintenance changes before that is the case. Probably in a day or two.
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LAV Filters - open source ffmpeg based media splitter and decoders Last edited by nevcairiel; 24th April 2019 at 19:16. |
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#1633 | Link | |
Registered User
Join Date: Aug 2009
Posts: 198
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Interesting snippet here:
https://www.streamingmedia.com/Artic...ng-131160.aspx Quote:
Basically claims the AV1-SVT encoder has barely begun development. If that's the case should be interesting to follow it's progress. I noticed a ticket on their tracker where people were asking them to tag a pre-release so they could begin the process of integrating with Austria etc and the Devs didn't think it was ready for even a pre-release status, then a press release came out announcing version 1.0 was ready. Last edited by dapperdan; 25th April 2019 at 21:54. |
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#1635 | Link |
Registered User
Join Date: Jun 2018
Posts: 7
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Really nice writeup of adding tiles to rav1e - explains what tiles are nicely:
https://blog.rom1v.com/2019/04/imple...ding-in-rav1e/ (credit: reddit av1 channel https://www.reddit.com/r/AV1/) |
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#1636 | Link | |
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Join Date: Feb 2003
Location: New York, NY (USA)
Posts: 82
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Quote:
[edit] removed some nonsense because I misread your reply, sorry about that. Last edited by Beelzebubu; 25th April 2019 at 16:19. |
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#1637 | Link | |
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Join Date: Apr 2002
Posts: 757
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#1639 | Link |
Derek Prestegard IRL
![]() Join Date: Nov 2003
Location: Los Angeles
Posts: 5,800
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Good interview. I spoke with Oliver from NGCodec at NAB this year and I agree with a lot that was said.
FPGA is neat and disruptive because it's cloud native now, so you can get a lot of the flexibility of a pure software solution. I think there's a span of a few years where FPGAs make a lot of sense for dense live encoding, but then eventually ASIC encoders get even better / faster / more power efficient, and software encoders continue to offer better quality. I think offline encoding for VOD streaming will still be done in software no matter what. I thought maybe there'd be a use case for FPGA AV1 encoding in the next year or so while software encoders (and CPUs) get fast enough to make AV1 encoding practical, but Oliver didn't seem to think this was a great use case. In retrospect, I'm inclined to agree. |
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#1640 | Link | |
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Join Date: Dec 2011
Posts: 93
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Quote:
It's very difficult for a sporadic doom9 reader like myself to follow with what has been discussed in this thread... |
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