Dolby Vision now possible through MP4 Mux.

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SamuriHL
Posts: 2737
Joined: Mon Jun 14, 2010 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

#10906 Post by SamuriHL » Wed Apr 30, 2025 8:29 pm

daffie wrote:
Wed Apr 30, 2025 8:13 pm
If you have a good calibration guy who knows his stuff inside and out.
Not like my guy who didn't even look at the shadow detail in DoVi and just did an autocal which made things worse.
Calibration is not easy. I'm still a novice and I've been doing it since the C8. What I will say is that if you don't have anyone that can do it locally it might be worth investing in the equipment to do it. What calibration software you choose can make a difference, too.

I mean this thread is about getting the highest quality you can out of your rips. Not having a properly calibrated display negates a lot of that effort IMO.

SamuriHL
Posts: 2737
Joined: Mon Jun 14, 2010 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

#10907 Post by SamuriHL » Wed Apr 30, 2025 8:33 pm

daffie wrote:
Wed Apr 30, 2025 8:26 pm
That markswift has no clue what he is talking about.
He has his own head to high up his Zidoo ass.
I don't give those people any attention. It becomes pretty clear who knows what they're talking about and who doesn't fairly quickly. Results speak for themselves. And the Ugoos with CPM is the best device I've used for DV playback.

daffie
Posts: 75
Joined: Sun Apr 16, 2023 6:10 pm

Re: Dolby Vision now possible through MP4 Mux.

#10908 Post by daffie » Wed Apr 30, 2025 8:35 pm

SamuriHL wrote:
Wed Apr 30, 2025 8:29 pm
daffie wrote:
Wed Apr 30, 2025 8:13 pm
If you have a good calibration guy who knows his stuff inside and out.
Not like my guy who didn't even look at the shadow detail in DoVi and just did an autocal which made things worse.
Calibration is not easy. I'm still a novice and I've been doing it since the C8. What I will say is that if you don't have anyone that can do it locally it might be worth investing in the equipment to do it. What calibration software you choose can make a difference, too.

I mean this thread is about getting the highest quality you can out of your rips. Not having a properly calibrated display negates a lot of that effort IMO.
I know it's not easy. I read some things about it the last week and it's complicated like hell.
I don't have the time to invest in it.
But if you call yourself a professional calibrator and ask A LOT of money for it you should at least improve on the default setting.....
LG OLED65G1RLA / Samsung HW-Q990D / Sony UBP-X800M2 / Ugoos AM6B+ (CE with CPM Build)

deadchip12
Posts: 379
Joined: Thu May 02, 2019 2:49 am

Re: Dolby Vision now possible through MP4 Mux.

#10909 Post by deadchip12 » Wed Apr 30, 2025 11:55 pm

RESET_9999 wrote:
Tue Apr 29, 2025 11:27 pm
blacks are not raised in DV but crushed, even in cmv4.0 :(
There is actually no difference at all in DV black crush on this TV... cmv2.9 4.0, 10 000 4000 1000, all crushed the same at 72-73.
HDR10 and SDR are ok
People are reporting hdr10 near black is too bright.

SamuriHL
Posts: 2737
Joined: Mon Jun 14, 2010 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

#10910 Post by SamuriHL » Thu May 01, 2025 12:10 am

daffie wrote:
Wed Apr 30, 2025 8:35 pm
I know it's not easy. I read some things about it the last week and it's complicated like hell.
I don't have the time to invest in it.
But if you call yourself a professional calibrator and ask A LOT of money for it you should at least improve on the default setting.....
Yup, if you're paying for it, you absolutely have the right to be happy with the result. Paying someone to push an "autocal" button with no tweaking involved is not really ok in my book.

RESET_9999
Posts: 2411
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

#10911 Post by RESET_9999 » Thu May 01, 2025 12:24 am

deadchip12 wrote:
Wed Apr 30, 2025 11:55 pm
People are reporting hdr10 near black is too bright.
Yes, I saw that in the AVForums YouTube review, and I think I’m noticing the same issue on my unit with the Kung Fu Panda sample. Pure black is truly black in all three modes: HDR10, DV, and SDR.

I’ll be doing more testing this weekend. For now, I’m just watching movies to build up more usage hours on the panel.
Currently watching the Italian FEL Blu-ray of Dredd, which has a peak brightness of 10,000 nits and an average MaxCLL per shot of 1,255 nits. This TV is insanely bright...

Image
Sorry for my English.
G5 / AM6B+ / Denon 7.2.4
DoVi_Scripts
DoVi Playback Devices

SamuriHL
Posts: 2737
Joined: Mon Jun 14, 2010 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

#10912 Post by SamuriHL » Thu May 01, 2025 12:49 am

FINALLY got DoVI_scripts installed and muxing my first MKV. Thank you so much for this amazing set of tools! Will play with Davinci at some point here, as well. I want DV on all the discs that I can do it for. My display (G2) likes DV quite a bit and I have it fairly well calibrated.

deadchip12
Posts: 379
Joined: Thu May 02, 2019 2:49 am

Re: Dolby Vision now possible through MP4 Mux.

#10913 Post by deadchip12 » Thu May 01, 2025 3:37 am

RESET_9999 wrote:
Thu May 01, 2025 12:24 am
deadchip12 wrote:
Wed Apr 30, 2025 11:55 pm
People are reporting hdr10 near black is too bright.
Yes, I saw that in the AVForums YouTube review, and I think I’m noticing the same issue on my unit with the Kung Fu Panda sample. Pure black is truly black in all three modes: HDR10, DV, and SDR.

I’ll be doing more testing this weekend. For now, I’m just watching movies to build up more usage hours on the panel.
Currently watching the Italian FEL Blu-ray of Dredd, which has a peak brightness of 10,000 nits and an average MaxCLL per shot of 1,255 nits. This TV is insanely bright...

Image
Hopefully hdr10 raised near black and dv crushed blacks will get fixed. We need to make noises on forum to get reviewers' and lg's attention.

daffie
Posts: 75
Joined: Sun Apr 16, 2023 6:10 pm

Re: Dolby Vision now possible through MP4 Mux.

#10914 Post by daffie » Thu May 01, 2025 9:23 am

SamuriHL wrote:
Thu May 01, 2025 12:10 am
daffie wrote:
Wed Apr 30, 2025 8:35 pm
I know it's not easy. I read some things about it the last week and it's complicated like hell.
I don't have the time to invest in it.
But if you call yourself a professional calibrator and ask A LOT of money for it you should at least improve on the default setting.....
Yup, if you're paying for it, you absolutely have the right to be happy with the result. Paying someone to push an "autocal" button with no tweaking involved is not really ok in my book.
His exact words:
"On your G1 LG TV the only thing you can do to calibrate Dolby Vision is with an autocal.
The rest is all blocked out by LG."
LG OLED65G1RLA / Samsung HW-Q990D / Sony UBP-X800M2 / Ugoos AM6B+ (CE with CPM Build)

kazuma
Posts: 186
Joined: Fri Nov 08, 2019 9:51 pm

Re: Dolby Vision now possible through MP4 Mux.

#10915 Post by kazuma » Thu May 01, 2025 10:11 am

what is exactly the difference between a regular coreelec build vs cpm build?

SamuriHL
Posts: 2737
Joined: Mon Jun 14, 2010 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

#10916 Post by SamuriHL » Thu May 01, 2025 10:55 am


daffie wrote:
His exact words:
"On your G1 LG TV the only thing you can do to calibrate Dolby Vision is with an autocal.
The rest is all blocked out by LG."
That's complete nonsense. But even if it were true, which it's not, using autocal and then not adjusting shadow detail to raise or lower black level is very wrong on an lg oled. With the equipment most home users have this is mostly a waste of time because the equipment isn't sensitive enough near black to be super useful in adjusting it correctly. For the most part anyway. A professional selling calibration better be using higher end equipment that is more sensitive near black and should be taking the time to fix those issues!! Did they at least have their own pattern generator? Or did they use the internal pattern generator? Because that can't be used to verify the calibration which is even worse.

Besides, autocal is not really the best way to calibrate an lg oled IMO. There is better software out there to do it.

As I said before, if you spend the time ripping DV or worse adding/upgrading DV to your rips, having the proper equipment to play them on matters greatly. Otherwise you're not really taking advantage of all it can offer.

Sent from my SM-S938U1 using Tapatalk



Last edited by SamuriHL on Thu May 01, 2025 10:55 am, edited 2 times in total.

SamuriHL
Posts: 2737
Joined: Mon Jun 14, 2010 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

#10917 Post by SamuriHL » Thu May 01, 2025 10:57 am

kazuma wrote:what is exactly the difference between a regular coreelec build vs cpm build?
CPM has an additional engine that can do on the fly conversations. E.g. hdr10+ to DV, even sdr to DV or the other way around. It's very useful for playing content that your display doesn't natively support.

Sent from my SM-S938U1 using Tapatalk


RESET_9999
Posts: 2411
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

#10918 Post by RESET_9999 » Thu May 01, 2025 11:09 am

deadchip12 wrote:
Thu May 01, 2025 3:37 am
Hopefully hdr10 raised near black and dv crushed blacks will get fixed. We need to make noises on forum to get reviewers' and lg's attention.
ok after 6h hours of usage and an automatic pixel refresher cycles, the black crush has improved a lot.
in cmv4.0 I can now see 66 at 1000,4000 and 10 000 MDL and pure black is now a bit raised
in cmv2.9 I can now see 69-70 at 1000, 4000 and 10 000MDL and pure black is now a bit raised
HDR10 is worse, 65 is now way too visible but pure black screen is still black

But I noticed something very bad. In dark scenes, DV has some sort of ''falling'' noise/grain with diagonal lines. Not sure how to describe it. It's very noticeable in the 10% grayscale file, and even at normal viewing distance.
https://drive.google.com/drive/u/1/fold ... 2ZGhSXZk_D
Sorry for my English.
G5 / AM6B+ / Denon 7.2.4
DoVi_Scripts
DoVi Playback Devices

daffie
Posts: 75
Joined: Sun Apr 16, 2023 6:10 pm

Re: Dolby Vision now possible through MP4 Mux.

#10919 Post by daffie » Thu May 01, 2025 11:19 am

SamuriHL wrote:
Thu May 01, 2025 10:55 am
daffie wrote:
His exact words:
"On your G1 LG TV the only thing you can do to calibrate Dolby Vision is with an autocal.
The rest is all blocked out by LG."
That's complete nonsense. But even if it were true, which it's not, using autocal and then not adjusting shadow detail to raise or lower black level is very wrong on an lg oled. With the equipment most home users have this is mostly a waste of time because the equipment isn't sensitive enough near black to be super useful in adjusting it correctly. For the most part anyway. A professional selling calibration better be using higher end equipment that is more sensitive near black and should be taking the time to fix those issues!! Did they at least have their own pattern generator? Or did they use the internal pattern generator? Because that can't be used to verify the calibration which is even worse.

Besides, autocal is not really the best way to calibrate an lg oled IMO. There is better software out there to do it.

As I said before, if you spend the time ripping DV or worse adding/upgrading DV to your rips, having the proper equipment to play them on matters greatly. Otherwise you're not really taking advantage of all it can offer.

Sent from my SM-S938U1 using Tapatalk
No, he did not use his own pattern generator. He only used the internal ones.
He had Klein K-10-A. Which is a meter of about 7. 000 dollars worth.
With that equipment he did an autocal for DoVi without looking at the black level and by only using the internal patterns from LG.

So, you can imagine I'm done with paying for "professionals" who think they can calibrate.
Happened also with a plasma I owned about 8 years ago.
LG OLED65G1RLA / Samsung HW-Q990D / Sony UBP-X800M2 / Ugoos AM6B+ (CE with CPM Build)

daffie
Posts: 75
Joined: Sun Apr 16, 2023 6:10 pm

Re: Dolby Vision now possible through MP4 Mux.

#10920 Post by daffie » Thu May 01, 2025 11:23 am

RESET_9999 wrote:
Thu May 01, 2025 11:09 am
deadchip12 wrote:
Thu May 01, 2025 3:37 am
Hopefully hdr10 raised near black and dv crushed blacks will get fixed. We need to make noises on forum to get reviewers' and lg's attention.
But I noticed something very bad. In dark scenes, DV has some sort of ''falling'' noise/grain with diagonal lines. Not sure how to describe it. It's very noticeable in the 10% grayscale file, and even at normal viewing distance.
https://drive.google.com/drive/u/1/fold ... 2ZGhSXZk_D
Can you maybe make a picture or gif of what you are seeing exactly ?
I can try the 10% grayscale on my LG G1 later today if you want.
LG OLED65G1RLA / Samsung HW-Q990D / Sony UBP-X800M2 / Ugoos AM6B+ (CE with CPM Build)

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