Use Neat Video with HDR10 content

[jriker]

Trying to figure out the best workflow for this. I have an older BD of Bad Boys and converted it to an MKV. File is basically 78GB 4k with HDR10.

I tried converting it then with x265 and crf 17 in ffmpeg and got to about 40gb with another 20 minutes of footage left to convert and I aborted. Obviously to grainy. I opened the file in Neat Video and reduced it and running the same command returned 15GB. That said color is way off.

So the source video screen shot thru VLC:


[Attachment 72903 - Click to enlarge]

I then opened an MP4 version of the imbedded video in Premiere Pro and then exported it as a MXF file:


[Attachment 72904 - Click to enlarge]

Color is off from the source. I then converted that giant file with ffmpeg and applied the HDR10 metadata back. Think it looks the same as the MXF file but in my non HDR monitor it looks totally red inside of VLC. Snapshot looks different.


[Attachment 72905 - Click to enlarge]

If I wanted to open a source file in Premiere Pro and use Neat Video on it and then save it for ffmpeg to use without altering the video beyond the noise reduction how do I get there? Workflow thoughts? Settings?

[Selur]

my 2 cents: (non-Premiere user)
If you watch HDR on a non-HDR monitor colors will change depending on the tone mapping method and settings,...
Assuming your denoising&co isn't strong, and you work on the content without the HDR meta info, I see no issue in adding the HDR meta info back again,...

Cu Selur

[jriker]

Thanks Selur. Know your not a premiere user so if anyone else knows to.

What is the best way to open a HDR movie in Premire just to run NeatVideo on it and export with no changes. Don't care if uncompressed and a TB in size as an intermediate format. I'm finding just now that if i have the sequence working color space set to Rec 2100 PQ with Auto Tone Map turned off, and export any way you think about it the colors change and see to end up looking SDR. Kind of like more colors than there should be looking at it on a standard monitor. I just figured out if I Interpret Footage on the original video loaded and do a color space override from 2100 PQ to Rec 709 then the export looks to match the original on an SDR monitor. Obviously the HDR info isn't there but would back that in when running thru FFMpeg to reduce size. Not sure if this makes sense or should be what I'm doing. Hope that Premiere isn't making decisions due to the monitor I'm on isn't HDR however I can turn it on as I'm streaming remotely and have a 4k HDR dongle installed. Just don't have the HDR part enabled as washed out on my remote monitor obviously.

Course then the output of the resulting file is Rec 709 which isn't what we want.