Dolby Vision now possible through MP4 Mux.

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codeXRes
Posts: 16
Joined: Mon Jan 20, 2020 1:10 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by codeXRes »

RESET_9999 wrote:
Thu Dec 10, 2020 4:04 pm
pete19 wrote:
Thu Dec 10, 2020 12:54 pm
from recent memory (~ 2MB MEL layer):

all 3x LOTR
all 3x Hobbit
Lawrence of Arabia

bluray forum has a long list, there are some
Interesting, thanks! do you have a link to that bluray.com list?
This is my go to DV list for new UHD releases. Some very knowledgeable people discussing stuff too.

https://forum.blu-ray.com/showthread.php?t=276448
agneva
Posts: 56
Joined: Mon Jan 06, 2020 11:42 am

Re: Dolby Vision now possible through MP4 Mux.

Post by agneva »

Hi,
someone has an idea, how can I extract:
-HEVC1 in 4K (Base layer)
-HEVC 2 in 1080p (DV EL)
from this mkv:
0.png
0.png (21.48 KiB) Viewed 3817 times
with gMKVExtract I get only one *.hevc file.

I need to create a mp4 for my LG TV:
1.png
1.png (21.23 KiB) Viewed 3817 times
Roberespa
Posts: 22
Joined: Mon Dec 07, 2020 2:31 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Roberespa »

RESET_9999 wrote:
Thu Dec 10, 2020 5:04 pm
Roberespa wrote:
Thu Dec 10, 2020 4:01 pm
My LG OLED55B6V TV, if it plays .ts video files with Dolby Vision.

Returning to my question. Is there a command to merge Hevc1 and hevc2 from the command prompt "cmd" and give me a .ts video file?

Explain how I can do it.
Please!

Thank you so much everyone.
Waiting for your reply.
all you need is here:

https://www.makemkv.com/forum/viewtopic ... 970#p96282
https://bintray.com/justdan96/tsMuxer/t ... htly#files
https://mrmc.tv/forum/viewtopic.php?f=1 ... &start=310

-Hi:

Finally, I have managed to make my television play Dolby Vision without being in .mp4, since it can be done in .ts or .m2ts the quality is much higher than that of the "guaranteed" .mp4.

.mp4 offers colors that tend to green and dark and the feeling of brightness and people's faces is bad.
I do not like.

Conversely;
.ts or .m2ts
offers excellent results, more realistic colors and good gloss.

I am very happy to have made it.
When I have time I will make a comment indicating the steps to follow.
So people don't have to spend hours reading forum posts. And it doesn't work for them.

I'm very happy.

Now that I have it, I would like to.
That you answer me some questions to have the "Master" in Dolby Vision =)

As far as I know, the iso file
Dolby Vision has two video layers
a .hevc

and a second .hevc

I think the first hevc that has a very large size is 4K video with HDR10,
While layer 2 hevc
It is the video that contains Dolby Vision. It is right?

* Questions from newbies:

What do BL, Mel, FEL and RPU stand for? What are the differences between Mel and Fel?

What is the best profile for a UHD with Dolby Vison 5, 7, 8 or 8.1?

Thank you so much everyone.
Hope you can solve my rookie questions.

Thanks a million I'm very happy to have achieved it.
You are all wonderful.

I will be waiting for your answers.

Best regards.
-Rober.
RESET_9999
Posts: 473
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

agneva wrote:
Fri Dec 11, 2020 12:55 pm
Hi,
someone has an idea, how can I extract:
-HEVC1 in 4K (Base layer)
-HEVC 2 in 1080p (DV EL)
from this mkv:
there is a demux bat here
https://www.makemkv.com/forum/viewtopic ... 970#p96282
Please forgive my English.
Sony x700 ----> Denon AVR ----> LG OLED C8
FIX the x700 DT-DL TS bug with this file
Wanderlust3K
Posts: 16
Joined: Tue Dec 08, 2020 1:06 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Wanderlust3K »

Yep yusepope is quite quiet.

Tested all Yusepope files (mp4) on a CX and only one would play and trigger DV, a FEL_To_81.mp4 (BL+RPU only), but it didnt look quite rigth.

is it true that BL+EL+RPU offer higher quality as opposed to just BL+RPU?
is it true that plain HDR+Dynamic Tonemaping = BL+RPU ?

Thanks and keep it up guys.
quietvoid
Posts: 80
Joined: Sun Apr 19, 2020 4:15 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by quietvoid »

Wanderlust3K wrote:
Fri Dec 11, 2020 9:02 pm
Yep yusepope is quite quiet.

Tested all Yusepope files (mp4) on a CX and only one would play and trigger DV, a FEL_To_81.mp4 (BL+RPU only), but it didnt look quite rigth.

is it true that BL+EL+RPU offer higher quality as opposed to just BL+RPU?
is it true that plain HDR+Dynamic Tonemaping = BL+RPU ?

Thanks and keep it up guys.
The CX is rumored to have lost dual track mp4 support.
There's little noticeable difference with a FEL, while MEL is the same as just the RPU.
LG's dynamic tonemapping is garbage (at least on the C8).
pete19
Posts: 31
Joined: Thu Dec 03, 2020 12:37 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by pete19 »

RESET_9999 wrote:
Thu Dec 10, 2020 4:04 pm
Interesting, thanks! do you have a link to that bluray.com list?
https://forum.blu-ray.com/showthread.php?t=276448

I can't remember, but I think MEL only ultimately "only" creates a 10 bit 420 image, compared to FEL which results in a 12bit 422 image, as MEL does not have the difference data in the EL, just the dynamic meta data.

the 10bit to 12bit difference is negligible, the 422 is what we want.
Maikel777
Posts: 2
Joined: Thu Dec 10, 2020 2:47 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Maikel777 »

I also have a TV
LG OLED55B6V.

For the movie The Lord of the Rings.
Which Dolby Vision profile is best suited for my TV? 5, 7, 8 or 8.1


Thanks in advance.
Roberespa
Posts: 22
Joined: Mon Dec 07, 2020 2:31 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Roberespa »

Maikel777 wrote:
Sat Dec 12, 2020 3:55 pm
I also have a TV
LG OLED55B6V.

For the movie The Lord of the Rings.
Which Dolby Vision profile is best suited for my TV? 5, 7, 8 or 8.1


Thanks in advance.
-Hello:

I have found this information:

Profile 5 single layer with exclusive support for Dolby Vision
Single layer 8.1 profile with HDR10 + Dolby Vision compatibility
Profile 8.2 single layer with SDR compatibility

From what i can read Profile 8.1 would be the best as it has HDR10 + Dolby Vision.

But I am a newbie at this.
If someone clears it up.

I would be very grateful, it is also of my interest since I have the same television.
chros
Posts: 26
Joined: Sun Sep 20, 2020 8:36 am

Re: Dolby Vision now possible through MP4 Mux.

Post by chros »

pete19 wrote:
Sat Dec 12, 2020 12:53 pm
I can't remember, but I think MEL only ultimately "only" creates a 10 bit 420 image, compared to FEL which results in a 12bit 422 image, as MEL does not have the difference data in the EL, just the dynamic meta data.

the 10bit to 12bit difference is negligible, the 422 is what we want.
I don't remember the 422 part, can you link a doc that describe this?
dcoke22
Posts: 460
Joined: Wed Jul 22, 2020 11:25 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by dcoke22 »

RESET_9999
Posts: 473
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

codeXRes wrote:
Fri Dec 11, 2020 8:32 am

This is my go to DV list for new UHD releases. Some very knowledgeable people discussing stuff too.

https://forum.blu-ray.com/showthread.php?t=276448
Thanks... so, there's a couple of movies that I thought were FEL.
I see that they realized that bdinfo is not accurate and updated the list for those 2mb/s MEL titles not a long time ago.

I wonder why studios decide to use them if they don't add anything but dynamic metadata.
Also, those 2mb/s MEL files muxed into a single-track profile 7 are not working on my Sony X700 while most of the FEL and all the small-sized MEL have no issue.
they all play fine in dual-track dual-layer file though.
Please forgive my English.
Sony x700 ----> Denon AVR ----> LG OLED C8
FIX the x700 DT-DL TS bug with this file
pete19
Posts: 31
Joined: Thu Dec 03, 2020 12:37 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by pete19 »

RESET_9999 wrote:
Thu Oct 08, 2020 2:57 am
a friend of mine(thank's manix) provided me two samples tone mapped to SDR from Dolby Vision made using a capture card (pro-res HQ) and the vertex 2 which allow the DV tone mapping.
could you explain your process in detail how the vertex 2 and capture card are being used to do get the screenshots ?

I'm assuming you're employing LLDV/player-led DV which the vertex then converts to SDR for the capture card to then grab a frame ?

which capture card are you using ?

Thx
Manixx2020beyound
Posts: 67
Joined: Thu Oct 08, 2020 5:19 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Manixx2020beyound »

It’s also possible to produce a HDR/rgb4816bit.png for comparison as well from a LLDV not converted to SDR. Comparison results are the same for sdr/hdr where the shield is concerned. (Ffmpeg to take screenshots)
Without the vertex 2 altering video playback
Once u have the HDR10/rgb48.png
U can view in your hdr/sdr software eg Madvr. In which u can now take another sdr.png if u so desire.
LLDV-Hdr.rgb.png example in mad vr
LLDV-Hdr.rgb.png example in mad vr
1AB62109-FE62-458B-8F23-3E636B5885C1.png (2.2 MiB) Viewed 3442 times
Last edited by Manixx2020beyound on Sun Dec 13, 2020 3:17 pm, edited 1 time in total.
RESET_9999
Posts: 473
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

pete19 wrote:
Sun Dec 13, 2020 4:17 am
RESET_9999 wrote:
Thu Oct 08, 2020 2:57 am
a friend of mine(thank's manix) provided me two samples tone mapped to SDR from Dolby Vision made using a capture card (pro-res HQ) and the vertex 2 which allow the DV tone mapping.
could you explain your process in detail how the vertex 2 and capture card are being used to do get the screenshots ?

I'm assuming you're employing LLDV/player-led DV which the vertex then converts to SDR for the capture card to then grab a frame ?

which capture card are you using ?

Thx
@Manixx2020beyound did the capture.
He's using the Atomos Shogun with the pro-res HQ 422 PQ codec. The Hdfury Vertex 2 was used to force LLDV from the player because you need a decoded DV 422 signal to be able to capture it in PQ.
If your TV was receiving LLDV by default, then it could be done without the Vertex. Also, any capture card that supports pro-res HQ or any PQ codec can capture a LLDV signal in PQ.

So in fact, those comparisons had double tone mapping: Tone mapped / Captured to HDR10 PQ, then tone mapped to SDR with madVR using exactly the same setting. 1 or 2 tone mapping doesn't change the result, the red push is still here on the Shield no matter how many times we tone map it. We did the comparison in SDR because we can see more of the red push this way.
Plus even if we can't capture the default RGB DV signal, we all know the red push issue affects both DV modes. I can clearly see the issue on my RGB DV setup.
I hope you understand what I'm trying to say, my English is not so great.

FYI here's the PQ comparison:
RGB 16 bit PQ (straight lossless PQ png from the capture card):
https://screenshotcomparison.com/comparison/8996
https://slow.pics/c/iMHMpi2T


lossless RGB 16 bit PQ png:
https://mega.nz/file/HOI23ToA#VzdEzYByu ... CEAsDO2-b4
https://mega.nz/file/rCZQlZza#Kvbp0XTsk ... fqMFFvzDyc

***these png can be viewed in HDR10 passthrough if you open them in MPC-HC / MPC-BE + madVR
if you want to take a look at the pro-res MOV (14gb for 3min), I can give you a private link by PM.
Last edited by RESET_9999 on Sun Dec 13, 2020 5:50 pm, edited 1 time in total.
Please forgive my English.
Sony x700 ----> Denon AVR ----> LG OLED C8
FIX the x700 DT-DL TS bug with this file
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