www.makemkv.com

dapope wrote: Mon Oct 16, 2023 10:58 am doesn't go above 1000 nits, so I should choose 1000 nits for 3-1 despite the MDL being reported as 4000 nits?

yes

Also, how does expanded brightness via FEL factor into this? Scream 3 has FEL expanded brightness. Wouldn't the FEL brightness be taking it over 1000 nits?

FEL is the difference between the original master and the hdr10 encode. The difference can be anything they decide.

RESET_9999 wrote: Mon Oct 16, 2023 2:09 pm

dapope wrote: Mon Oct 16, 2023 10:58 am Also, how does expanded brightness via FEL factor into this? Scream 3 has FEL expanded brightness. Wouldn't the FEL brightness be taking it over 1000 nits?

FEL is the difference between the original master and the hdr10 encode. The difference can be anything they decide.

I'm sorry but I don't really understand how to act on this.
Say you have the following situation, as with Scream (your screenshots here: https://slow.pics/c/j9rBXDQU). The MDL is listed as 4000 nits.
The HDR plot goes barely over 1000 nits. Maybe, for the sake of argument, we could say that it doesn't really go over 1000 nits at all, like the plot I shared of Scream 3. But the DV plot goes much higher, almost to 4000 nits.
In this situation, using 3-1, should I choose the 1000 nits option or the 4000 nits option?
Thank you!

Mission Impossible - Dead Reckoning Part One in Dolby Vision Profile 8 is completely unwatchable on Philips TV.
Tried Apple TV 4K, Shield TV Pro but same picture. Plex and Vimu installed on the TV are the same.
If I buy the film from iTunes the picture is perfect and if I download the original Profile 5 version it is perfect.
What is causing the problem with Profile 8?

Profile 8:
https://freeimage.host/i/img20231014210744.JFn1NcJ
Profile 5/iTunes Movies
https://freeimage.host/i/img20231014215916.JFn1O8v

dapope wrote: Tue Oct 17, 2023 2:18 am In this situation, using 3-1, should I choose the 1000 nits option or the 4000 nits option?
Thank you!

As I said, you measure any video with madvr, if 95% is under 1000nits , you use 1000nits MDL in 3-1.

Fel dv plot has nothing to do with this.

Tompi wrote: Tue Oct 17, 2023 9:38 am Mission Impossible - Dead Reckoning Part One in Dolby Vision Profile 8 is completely unwatchable on Philips TV.
Tried Apple TV 4K, Shield TV Pro but same picture. Plex and Vimu installed on the TV are the same.
If I buy the film from iTunes the picture is perfect and if I download the original Profile 5 version it is perfect.
What is causing the problem with Profile 8?

Profile 8:
https://freeimage.host/i/img20231014210744.JFn1NcJ
Profile 5/iTunes Movies
https://freeimage.host/i/img20231014215916.JFn1O8v

Yeah, not surprised.
The HDR10 and P5 DV versions have different brightness and all those uploaders make P8 hybrid assuming its always the same.

https://slow.pics/c/doZxc4kj

Hi guys, I've lately started generating hdr10+/dv for all my movies that don't have them. The first thing to do before generating comes to encoding an Apple ProRes version of the movie. For instance, one could set encoding to maximum quality and the resulting file will be huge, while I usually keep quality at 5 in which I found a good compromise between quality and space, so how much of importance does the ProRes quality have to do with the final result?

LV8HD wrote: Tue Oct 17, 2023 3:22 pm Hi guys, I've lately started generating hdr10+/dv for all my movies that don't have them. The first thing to do before generating comes to encoding an Apple ProRes version of the movie. For instance, one could set encoding to maximum quality and the resulting file will be huge, while I usually keep quality at 5 in which I found a good compromise between quality and space, so how much of importance does the ProRes quality have to do with the final result?

I use -qscale:v 3 and RESET's script has -qscale:v 4, which I believe he found to be best overall compromise between speed/size and PQ/accuracy, if I'm not mistaken.

Apparently the new Fire TV Stick 4K Max (2Gen) 2023 16GB supports:
-Dolby TrueHD (Atmos) passthrough
-DTS passthrough
-DTS-HD passthrough (basic profile)
which is new.
Still no FEL / Profile 7 DoVi support per https://developer.amazon.com/docs/fire- ... ax_gen2_16 though.

„Dolby Vision support for Profile 4-MEL, 5, 8, 9 & 10. (Up to Level 9 for profiles 5, 8 and 10. Up to Level 5 for Profile 9)“

Thanks for the info but unfortunately, the FireTV device is probably the worst one for DV rip.

1- Overall a much darker image than all the other devices. Not a subtle difference, its very noticeable.
https://www.youtube.com/watch?v=1ZnPmBFuYtw

2- Stutter with high bitrate videos (I had to redo the firetv lldv capture about 3 times in that YouTube video)
5ghz wifi or USB to ethernet adaptor

3- Can't do true TV-LED meaning it's always the player that is processing the dynamic metadata.

4- Does some Dolby Vision IQ internally even if your TV is in cinema mode with DV IQ is set to off(greyed out)... This is related to L11 cmv4.0 which should only works when your TV is in Cinema Home mode with DV IQ on.

RESET_9999 wrote: Tue Oct 17, 2023 2:09 pm
Yeah, not surprised.
The HDR10 and P5 DV versions have different brightness and all those uploaders make P8 hybrid assuming its always the same.

https://slow.pics/c/doZxc4kj

In this situation, is the preferred process to generate DV with CM_Analize/Resolve?

I guess...
I'm waiting on the bluray remux before making a final decision about this movie.

Gatorman wrote: Wed Oct 18, 2023 3:04 pm

RESET_9999 wrote: Tue Oct 17, 2023 2:09 pm
Yeah, not surprised.
The HDR10 and P5 DV versions have different brightness and all those uploaders make P8 hybrid assuming its always the same.

https://slow.pics/c/doZxc4kj

In this situation, is the preferred process to generate DV with CM_Analize/Resolve?

Not really worth it in my opinion, at this time, given UHD BD is 2 weeks away from retail and will have DoVi included.

Hey @RESET_9999
Thanks for answering my questions as I get a grip on this, I hope it hasn't been too annoying.
I made a copy of Scream 3 using 3-1 with a version of your program last week and it worked fine. However I wanted to remake it with the 1000 nit MDL as you advised, and now I'm getting errors.
https://imgur.com/a/L91XJky
Any thoughts?

forgot to test P7 input in 3-1. try next version or convert your input to P8.

RESET_9999 wrote: Thu Oct 19, 2023 12:15 pm forgot to test P7 input in 3-1. try next version or convert your input to P8.

No worries, I look forward to the next version.