Kodi 19.1 Near black on oled

[simenh1]

Hi.

I came across an issue with the 19.1 release compared to the older 18.9 release.
There seems to be an issue with the handling of near black at least in this one VC-1 movie I noticed this issue.

The Kodi 18.9 picture looks identical to the output of the 2015 Shield, 2019 Shield Pro and the Apple TV 4k with the grain and noise preserved.

But the 19.1 picture looks quite awful with this red tinted blotchiness.

Any idea what could cause this?

I have tested different resolutions and framerates including 4.2.2 and the issue persists.

[angry.sardine]

Might be the same issue discussed here:

VC-1 decoding errors

I’ve raised this before, but that was in the Kodi v19 testing thread, which has now been locked. I think this deserves to be in a still-open, bumpable thread… First, a link to some of my test clips: Dropbox - Deinterlacing test patterns - Simplify your life Here’s an approximate copy of what I said in the other thread, edited for clarity: Star by turning off hardware decoding, then play the 1080i60 wedge pattern clip. Decoded in software, it plays perfectly - that gives you a reference. Now …

[grahamh]

Please post the output of cat /etc/modules-load.d/amlvideodri.conf

[simenh1]

amvdec_h265
amvdec_vc1
amvdec_vp9
amvdec_mmpeg12
amvdec_h264mvc
amvdec_h264
amvdec_mmpeg4
amvdec_ports

[grahamh]

Thanks. No problem there, but you should grab the next OSMC release when it comes out (real soon now).

[simenh1]

Alright. Will do!

[simenh1]

Can confirm disabling hardware acceleration fixes the issue.