Yes that makes sense to me - and would explain why it happens on p5 and p7 files, and not p8 - as a result of it saying "I don't know what any of this means" when looking at the non-shaping RPU effects metadata - while DV processing is enabled - but the artifacts sneak through from the color shaping that it is reading from the RPU - because you don't need code for artifactssw5163 wrote: ↑Tue Sep 06, 2022 12:28 amI think those are caused by processing "reshaping data" in RPU (polynomial, and MMR mapping).
From my understanding, P5 RPU has "reshaping data" for ICtCp->YCbCr.
P8.1 RPU doesn't need "reshaping data" for HDR10->HDR10.
P8.4 RPU has "reshaping data" for HLG->PQ.
P7 RPU has "reshaping data" for processing the weird colour in EL (I'm not sure what it really does)
MPV can adapt those polynomial, and MMR mapping for ICtCp->YCbCr, HLG->HDR10 etc.
However, it can't process EL and merge that with BL like proper dolby decoding engine.
Resulting in wrongly processing those "reshaping data" on BL.
So you can see some change when scene/brightness change, but it's wrong.
I'm not 100% sure about this, will need anyone knowing how this exactly work to confirm, many thanks.
The p7 EL shaping from my understanding is to make it look 12bit color from a 10bit file, or the other way around, something like that