#10733: nlmeans_vulkan Filter Generates Artefacts
-------------------------------------+-------------------------------------
Reporter: solchi | Owner: (none)
Type: defect | Status: new
Priority: normal | Component: avfilter
Version: git-master | Resolution:
Keywords: filters | Blocked By:
vulkan |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Description changed by solchi:
Old description:
> Summary of the bug: Applying the nlmeans_vulkan filter produces various
> video artefacts. These video artefacts usually present on the right-hand
> side of the video as rogue green pixels. Sometimes this behaviour can be
> found at the bottom of the effected video as well.
>
> How to reproduce:
> {{{
> % ffmpeg -init_hw_device vulkan=vk:0 -filter_hw_device vk -i
> inputfile.mkv -vf hwupload,nlmeans=s=5,hwdownload,format=yuv420p -c:v
> libx264 -b:v 0 -crf 18 -tune fastdecode -map 0:0 outputfile.mkv
> ffmpeg version 6.1 Copyright (c) 2000-2023 the FFmpeg developers
> built with gcc 13 (Gentoo 13.2.1_p20230826 p7)
> }}}
> Zip file contains: full-uncut console output, vulkaninfo, source and
> effected video and other possible relevant information.
>
> URL to Zip File:
> https://mega.nz/file/AKNWHRiY#ngjsTe0X4Us_ZxFxeLTttKI8lCbhW1O49RfyPl2R4ME
>
> (Note: other vulkan filters were tested and appear to be functioning as
> expected e.g. flip_vulkan or gblur_vulkan)
New description:
Summary of the bug: Applying the nlmeans_vulkan filter produces various
video artefacts. These video artefacts usually present on the right-hand
side of the video as rogue green pixels. Sometimes this behaviour can be
found at the bottom of the effected video as well.
How to reproduce:
{{{
% ffmpeg -init_hw_device vulkan=vk:0 -filter_hw_device vk -i inputfile.mkv
-vf hwupload,nlmeans_vulkan=s=5,hwdownload,format=yuv420p -c:v libx264
-b:v 0 -crf 18 -tune fastdecode -map 0:0 outputfile.mkv
ffmpeg version 6.1 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 13 (Gentoo 13.2.1_p20230826 p7)
}}}
Zip file contains: full-uncut console output, vulkaninfo, source and
effected video and other possible relevant information.
URL to Zip File:
https://mega.nz/file/4TFTULAK#fyvLj4QdZIHxa3aZiqVsVSSrE07L7o1U4nkxNfnduaM
(Note: other vulkan filters were tested and appear to be functioning as
expected e.g. flip_vulkan or gblur_vulkan)
--
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Ticket URL: <https://trac.ffmpeg.org/ticket/10733#comment:3>
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