Dark Bars on certain 4k movies

[ph1go]

It is both a media issue AND a device specific issue.

The media issue is that the canvas was shrunk to a size smaller than the DV RPU.  Or the HEVC video and RPU were taken from different sources and muxed together.

The device specific issue is that the RPU is scaled to match the canvas.  This latter issue doesn't happen on most devices.  AFAICT, this only happens on Sony devices.

However, your solution sounds reasonable and plausible if you don't want to get rid of the RPU entirely to convert the video to plain HDR10.

Ok, well it happens on my LG C4 as well. It's only occasionally that I run into it, usually on Blu-ray rips but just recently on a WEB-DL TV show (which prompted me to look the fix up again). The issue only presents itself and needs fixing on the first 3 episodes of the season though, the rest of them are fine, which made me think it was more likely an error made during the encode than anything else. It does look like the DV might've been muxed in from elsewhere, though - the streaming service (Amazon) doesn't seem to offer it from what I can see.