Dolby Vision now possible through MP4 Mux.

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RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

shawnc22 wrote:
Tue Jul 28, 2020 3:52 pm
The only official profile 4 video I can think of is the lg demo from here: https://4kmedia.org/lg-dolby-vision-uhd-4k-demo/. I haven’t looked at this video closely or compared the playback off anything else to see if there’re any evidence of the red push here.
definitely going to try that file. thank's
Sorry for my English.
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Darthjipsu
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Re: Dolby Vision now possible through MP4 Mux.

Post by Darthjipsu »

RESET_9999 wrote:
Tue Jul 28, 2020 3:27 pm
So, I did more comparison with my x700 and I just can't get a perfect match with any of the single-layer BL+EL+RPU( FEL or MEL). I'm starting to think that the Shield just can't play them properly because I can get a perfect match with the genuine profile 5 full range files from streaming services but never with the uhd-bd rip. It actually makes sense, maybe the shield was never meant to play dual layer rip.

Using a real profile 5(BL+RPU) test pattern, the Vertex completely fixes the red push issue and the colors match the x700 perfectly.

Shield Vertex fix VS x700 default mode: https://screenshotcomparison.com/comparison/4939

Shield Vertex fix VS Shield RGB bt2020 default: https://screenshotcomparison.com/comparison/4938

test pattern: https://drive.google.com/file/d/1JURFyX ... sp=sharing

Spears & Munsil disc.
I see a red push even with the Vertex.

Shield Vertex fix VS Shield RGB bt2020 default https://screenshotcomparison.com/comparison/4940

Shield Vertex fix VS x700 default mode: https://screenshotcomparison.com/comparison/4941

x700 default mode VS Shield RGB bt2020 default: https://screenshotcomparison.com/comparison/4942
I've conduct the same comparison with your pattern DV file.
I compared the mp4 played with my Shield RGB bt2020 and with in-app Philips
Shield Normal VS Philips TV https://screenshotcomparison.com/comparison/4946

And my results seems slightly differents
Cyan is brighter with my shield but i'm not sure about a red push
it's very strange
RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

Darthjipsu wrote:
Tue Jul 28, 2020 5:15 pm
I've conduct the same comparison with your pattern DV file.
I compared the mp4 played with my Shield RGB bt2020 and with in-app Philips
Shield Normal VS Philips TV https://screenshotcomparison.com/comparison/4946

And my results seems slightly differents
Cyan is brighter with my shield but i'm not sure about a red push
it's very strange
interesting..... yours appear undersaturated compared to the philips and yes indeed, very different than my comparisons but I noticed your taking pictures in a bright room. My pictures were taken in a complete dark room ( black velvet everywhere) without any light. Perhaps thats the difference ? I dont know but I'm clearly getting the same color difference no matter how many comparisons i do.
Also, I assume your camera settings are locked?

EDIT:, you sure the signal is RGB ? I don't know what DV type the Philips tv supports, maybe LLDV ? that would explain why the red color seems ok.
Last edited by RESET_9999 on Tue Jul 28, 2020 6:57 pm, edited 2 times in total.
Sorry for my English.
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Post by Darthjipsu »

RESET_9999 wrote:
Tue Jul 28, 2020 6:01 pm
Darthjipsu wrote:
Tue Jul 28, 2020 5:15 pm
I've conduct the same comparison with your pattern DV file.
I compared the mp4 played with my Shield RGB bt2020 and with in-app Philips
Shield Normal VS Philips TV https://screenshotcomparison.com/comparison/4946

And my results seems slightly differents
Cyan is brighter with my shield but i'm not sure about a red push
it's very strange
interesting..... yours appear undersaturated compared to the philips and yes indeed, very different than my comparisons but I noticed your taking pictures in a bright room. My pictures were taken in a complete dark room ( black velvet everywhere) without any light. Perhaps thats the difference ? I dont know but I'm clearly getting the same color difference no matter how many comparisons i do.
Also, I assume your camera settings are locked?

It's not in a bright room, just ambilight activated. I could try to turn off ambilight.
And yes I locked my camera Settings (ISO, Shutter Speed, Aperture, White Balance)
I will also try later today or tomorrow the video with plex running on Philips to see if the problem come from Multimedia App or Shield TV
lexyz
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Re: Dolby Vision now possible through MP4 Mux.

Post by lexyz »

RESET_9999 wrote:
Tue Jul 28, 2020 3:27 pm
Spears & Munsil disc.
I see a red push even with the Vertex.
x700 default mode VS Shield RGB bt2020 default: https://screenshotcomparison.com/comparison/4942
Very close to what I see on my tv
RESET_9999 wrote:
Tue Jul 28, 2020 3:27 pm
test pattern: https://drive.google.com/file/d/1JURFyX ... sp=sharing
I can't tell there is any noticeable red push
Bravia internal Plex vs Shield Plex
Bravia's internal apps are brighter, so ignore brightness difference
https://screenshotcomparison.com/comparison/4951
Bravia XF90, Shield TV Pro'19, UBP-X700
RESET_9999
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Re:

Post by RESET_9999 »

Darthjipsu wrote:
Tue Jul 28, 2020 6:08 pm

It's not in a bright room, just ambilight activated. I could try to turn off ambilight.
And yes I locked my camera Settings (ISO, Shutter Speed, Aperture, White Balance)
I will also try later today or tomorrow the video with plex running on Philips to see if the problem come from Multimedia App or Shield TV
do you have any device that can tell you if you are getting RGB 8bit DV or LLDV 12bit?
Sorry for my English.
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RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

lexyz wrote:
Tue Jul 28, 2020 6:35 pm

I can't tell there is any noticeable red push
Bravia internal Plex vs Shield Plex
Bravia's internal apps are brighter, so ignore brightness difference
https://screenshotcomparison.com/comparison/4951
yeah, with a Sony TV, you shouldn't have any red push with genuine profile 5 files or from any streaming apps.
but thats a huge brightness difference!!
Sorry for my English.
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Dolby Vision now possible through MP4 Mux.

Post by Darthjipsu »

RESET_9999 wrote:
Tue Jul 28, 2020 7:26 pm
Darthjipsu wrote:
Tue Jul 28, 2020 6:08 pm

It's not in a bright room, just ambilight activated. I could try to turn off ambilight.
And yes I locked my camera Settings (ISO, Shutter Speed, Aperture, White Balance)
I will also try later today or tomorrow the video with plex running on Philips to see if the problem come from Multimedia App or Shield TV
do you have any device that can tell you if you are getting RGB 8bit DV or LLDV 12bit?
My TV tells me that I receive 8bit RGB when using Nvidia Shield
RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

Darthjipsu wrote:
Tue Jul 28, 2020 7:30 pm

My TV tells me that I receive 8bit RGB when using Nvidia Shield
Interesting. is it an OLED ? I wonder if that could matter.
Sorry for my English.
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hepe9
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Re: Dolby Vision now possible through MP4 Mux.

Post by hepe9 »

lexyz wrote:
Tue Jul 28, 2020 6:35 pm
RESET_9999 wrote:
Tue Jul 28, 2020 3:27 pm
Spears & Munsil disc.
I see a red push even with the Vertex.
x700 default mode VS Shield RGB bt2020 default: https://screenshotcomparison.com/comparison/4942
Very close to what I see on my tv
RESET_9999 wrote:
Tue Jul 28, 2020 3:27 pm
test pattern: https://drive.google.com/file/d/1JURFyX ... sp=sharing
I can't tell there is any noticeable red push
Bravia internal Plex vs Shield Plex
Bravia's internal apps are brighter, so ignore brightness difference
https://screenshotcomparison.com/comparison/4951
Finally

I can see clearly the problem with DV and Bravia Tvs

With DV through HDMI is more darkness than trough apps

What model have you?

I can't understand why Sony don't fix the problem
Darthjipsu
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Re: Dolby Vision now possible through MP4 Mux.

Post by Darthjipsu »

RESET_9999 wrote:
Tue Jul 28, 2020 7:34 pm
Interesting. is it an OLED ? I wonder if that could matter.
Yes it's the OLED934 model
It's pretty strange

In the shield setup I have YCbCr 4:2:2 BT2020 DV Ready
When I read :
- DV Files my TV displays DV 8bit RVB
- HDR10 Files my TV displays HDR BT2020 8bit

but if I setup to YCbCr 4:2:0 BT2020 without DV
HDR10 Files my TV displays HDR BT2020 10bit


But I can only have info if source is from HDMI, so I have no clue about info while playing HDR10 or DV Files with InApp Philips
shawnc22
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Re: Dolby Vision now possible through MP4 Mux.

Post by shawnc22 »

Darthjipsu wrote:
Tue Jul 28, 2020 7:52 pm
RESET_9999 wrote:
Tue Jul 28, 2020 7:34 pm
Interesting. is it an OLED ? I wonder if that could matter.
Yes it's the OLED934 model
It's pretty strange

In the shield setup I have YCbCr 4:2:2 BT2020 DV Ready
When I read :
- DV Files my TV displays DV 8bit RVB
- HDR10 Files my TV displays HDR BT2020 8bit

but if I setup to YCbCr 4:2:0 BT2020 without DV
HDR10 Files my TV displays HDR BT2020 10bit


But I can only have info if source is from HDMI, so I have no clue about info while playing HDR10 or DV Files with InApp Philips
8Bit RGB is normal for DV if your TV supports it, which looks like it does. Are you not also seeing the BT2020 tag next to 8Bit RGB when playing DV off the Shield?
Darthjipsu
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Re: Dolby Vision now possible through MP4 Mux.

Post by Darthjipsu »

shawnc22 wrote:
Tue Jul 28, 2020 7:55 pm
Darthjipsu wrote:
Tue Jul 28, 2020 7:52 pm
RESET_9999 wrote:
Tue Jul 28, 2020 7:34 pm
Interesting. is it an OLED ? I wonder if that could matter.
Yes it's the OLED934 model
It's pretty strange

In the shield setup I have YCbCr 4:2:2 BT2020 DV Ready
When I read :
- DV Files my TV displays DV 8bit RVB
- HDR10 Files my TV displays HDR BT2020 8bit

but if I setup to YCbCr 4:2:0 BT2020 without DV
HDR10 Files my TV displays HDR BT2020 10bit


But I can only have info if source is from HDMI, so I have no clue about info while playing HDR10 or DV Files with InApp Philips
8Bit RGB is normal for DV if your TV supports it, which looks like it does. Are you not also seeing the BT2020 tag next to 8Bit RGB when playing DV off the Shield?
Yes I did not specify but it's BT2020
SamuriHL
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Re: Dolby Vision now possible through MP4 Mux.

Post by SamuriHL »

I meant to mention this before but just an FYI, when playing these discs on my UB820, it is also showing RGB 8 bit BT.2020. And yet it has the correct color space.
RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

SamuriHL wrote:
Tue Jul 28, 2020 8:12 pm
I meant to mention this before but just an FYI, when playing these discs on my UB820, it is also showing RGB 8 bit BT.2020. And yet it has the correct color space.
Now I'm confused...
you once said on avsforum that you were getting LLDV out of the UB820. are you sure your Integral scaler wasn't set to RGB bt2020 ? would also explain why you didn't see a difference on the Spears demo.
https://www.avsforum.com/forum/39-netwo ... st59652754

what's the default DV mode on the UB820 when the TV is capable of both format ?
Sorry for my English.
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