Dolby Vision now possible through MP4 Mux.

[agneva]

Do you have a small test *.ts for me ? I would like to test it on UBK90.
edit: I tried myself a *.ts - its been played in HDR

[Manixx2020beyound]

thanks. so how do you convert the png file to SDR ? ffmpeg as well or madvr ? can you share your process ?

I use madVR because I consider it the best HDR to SDR tone mapping but it probably can be done with ffmpeg. I don't know how though.
So just open the png in MPC-BE/HC/madVR. it needs ''transfer=hdr'' in the filename.

Screenshot.transfer=.png
Will produce u a rec 709.png

[Wanderlust3K]

The CX is rumored to have lost dual track mp4 support.

Can confirm that, no more Dual track/dual layer mp4 files with CX.

LG's dynamic tonemapping is garbage (at least on the C8).

Ouch, i thougth the lack of Dolby Vision support could be offset with Dynamic Tonemmaping and it seems its still garbage on CX according to HDTVTest:

https://www.youtube.com/watch?v=VGO38f1EoYE

[Wanderlust3K]

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.

B6 are (or were if firmaware did not change that ) play Dual track/dual layer DV MP4 files, so he betters keeps just using the Dolby muxer tool, profile 7, and get a Dual track/dual layer MP4 DV file.

[RESET_9999]

Screenshot.transfer=.png
Will produce u a rec 709.png

''transfer=hdr'' is only to tell madVR: hey this file is in PQ.
it has nothing to do with ffmpeg.

[pete19]

Screenshot.transfer=.png
Will produce u a rec 709.png

is this parameter for ffmpeg or madvr ?

[RESET_9999]

is this parameter for ffmpeg or madvr ?

????
I just answered that one post above.. that parameter is only for madVR...

if you want SDR screenshots, no need of FFmpeg. just tone map your HDR video straight in madvr.

[Manixx2020beyound]

This is an interesting read
According to this article dv-rgb8 is the old dv & LLDV is now mandatory on all doblyvision regular dv is not required
LLDV has it own profile as well.

https://www.google.com/amp/s/blog.semte ... s_amp=true

[pete19]

is this parameter for ffmpeg or madvr ?

????
I just answered that one post above.. that parameter is only for madVR...

if you want SDR screenshots, no need of FFmpeg. just tone map your HDR video straight in madvr.

yeah, your post was a bit unclear, but this one cleared it up. Thanks.

I gotta dig into madvr, still no idea how to display an image with it...

[pete19]

This is an interesting read
According to this article dv-rgb8 is the old dv & LLDV is now mandatory on all doblyvision regular dv is not required
LLDV has it own profile as well.

https://www.google.com/amp/s/blog.semte ... s_amp=true

problem is that player-led LLDV is often less accurate than tv-led full STD DV

[DaMacFunkin]

This is an interesting read
According to this article dv-rgb8 is the old dv & LLDV is now mandatory on all doblyvision regular dv is not required
LLDV has it own profile as well.

https://www.google.com/amp/s/blog.semte ... s_amp=true

problem is that player-led LLDV is often less accurate than tv-led full STD DV

Blame Sony.
Dolby set out with good intentions and now hardware manufacturers are calling the shots.

[pete19]

Blame Sony.
Dolby set out with good intentions and now hardware manufacturers are calling the shots.

the problem is the approach, in player-led LLDV the TV/sink must pass over all calibration parameters and current settings/values (whatever can be passed via HDMI, EDID etc), and based off that the player must decode the Dolby stream accordingly.

This will most likely never be as accurate as decoding full tv-led DV in the TV hardware itself with all of those parameters plus additional data that cannot or wasn't transmitted...

in a perfect world it is, but practical tests have often shown the difference

[deadchip12]

The CX is rumored to have lost dual track mp4 support.

Can confirm that, no more Dual track/dual layer mp4 files with CX.

So the dolby vision files created using the method in the OP can't be played using the tv internal media player anymore? What is the alternative?

[agneva]

I bought the BluRay Player LG UBK90 for 138€. Now its 131,60 €.
It can play DV Dual Layer mp4.

[DaMacFunkin]

Blame Sony.
Dolby set out with good intentions and now hardware manufacturers are calling the shots.

the problem is the approach, in player-led LLDV the TV/sink must pass over all calibration parameters and current settings/values (whatever can be passed via HDMI, EDID etc), and based off that the player must decode the Dolby stream accordingly.

This will most likely never be as accurate as decoding full tv-led DV in the TV hardware itself with all of those parameters plus additional data that cannot or wasn't transmitted...

in a perfect world it is, but practical tests have often shown the difference

Totally agree, had this argument with many a LLDV evangelist, with the Oppo clone you can switch between Tv led and player led, there’s is a difference, on some content it is very noticeable.