Dolby Vision now possible through MP4 Mux.

[deadchip12]

get the latest beta, the path to the 2.9 to 4.0 tool was incorrect in 2.0.7

https://drive.google.com/file/d/128gq8a ... drive_link

Alright. Before reading this reply of yours, I moved the 2.9-to-4.0 tool to the same folder as the video files and it ran successfully. Checked the rpu plot/frames of the final mkv file and it seemed correct. Will watch the movie later this week and see if there's any problem. What are the visible image quality improvements of cmv4.0 compared to 2.9 that I should be able to notice?

[RESET_9999]

Alright. Before reading this reply of yours, I moved the 2.9-to-4.0 tool to the same folder as the video files and it ran successfully. Checked the rpu plot/frames of the final mkv file and it seemed fine. Will watch the movie later this week and see if there's any problem. What are the visible image quality improvements of cmv4.0 compared to 2.9?

there wont be any problem, I already watched this movie and many others.
cmv4.0 trims is how the movie was graded originally and how the colorist saw it on his monitor. 2.9, is just generated from 4.0 by an algo.
And as I said the other day, cmv2.9 has crushed black ( at least the two LG TV and hisense TV I tested).

[deadchip12]

Alright. Before reading this reply of yours, I moved the 2.9-to-4.0 tool to the same folder as the video files and it ran successfully. Checked the rpu plot/frames of the final mkv file and it seemed fine. Will watch the movie later this week and see if there's any problem. What are the visible image quality improvements of cmv4.0 compared to 2.9?

there wont be any problem, I already watched this movie and many others.
cmv4.0 trims is how the movie was graded originally and how the colorist saw it on his monitor. 2.9, is just generated from 4.0 by an algo.
And as I said the other day, cmv2.9 has crushed black ( at least the two LG TV and hisense TV I tested).

Cool.
Btw, are the levels to copy always 3, 8 and 9 for every movie? What do those levels mean in layman's terms?

[RESET_9999]

when you transfer 4.0 to 2.9, yes.

L3 = offset to L1... L1+L3 = Algo automatic tone mapping when the content exceeds your TV capabilities
L8 = artistic trim pass(es), manually done by the colorist for a more accurate tone mapping when the content exceeds your TV capabilities
L9 = Mastering display primaries color are signaled shot by shot for better alignment with the metadata bitstream carriage.
https://www.youtube.com/watch?v=DcN6a57DYAc
https://www.youtube.com/watch?v=15HTaR0hRvI

[sofakng]

Can anybody help me understand the more technical details of Dolby Vision (and HDR10[+])?

Here is my basic understanding:

1) HDR10, HDR10+, and Dolby Vision metadata is stored as packets (NAL/SEI units) inside the HEVC stream.
2) Dolby Vision calls its metadata "Reference Picture Units (RPU)". HDR10(+) metadata doesn't have a specific name.
3) These metadata packets can be extracted (dovi_tool and hdr10plus_tool). dovi_tool creates RPU binaries and hdr10plus_tool creates JSON.
4) Dolby Vision Profile 7 also contains an extra video HEVC video layer (MEL and FEL).

Here are my questions:

1) Is the video stream separate from the HDR data? For example, can you theoretically remove the HDR packets and still watch the video?
2) Does the RPU and FEL/MEL stream contain all of the Dolby Vision data?
3) What does the Dolby cm_analyze tool do?

[deadchip12]

when you transfer 4.0 to 2.9, yes.

L3 = offset to L1... L1+L3 = Algo automatic tone mapping when the content exceeds your TV capabilities
L8 = artistic trim pass(es), manually done by the colorist for a more accurate tone mapping when the content exceeds your TV capabilities
L9 = Mastering display primaries color are signaled shot by shot for better alignment with the metadata bitstream carriage.
https://www.youtube.com/watch?v=DcN6a57DYAc
https://www.youtube.com/watch?v=15HTaR0hRvI

Thanks. Great info.

On a different note, is there a way to know which is the right streaming file to download? For example, I see these two uploads for dune 2:

Dune.Part.Two.2024.Eng.Fre.Ger.Ita.Spa.2160p.WEBMux.DV.HDR.HEVC.Atmos-SGF

Dune.Part.Two.2024.2160p.WEB-DL.DV.HDR10.PLUS.ENG.LATINO.HINDI.DDP5.1.Atmos.H265.MP4-BEN.THE.MEN

How is WEBMux different from WEB-DL? Does it matter if it is hevc or h265 or even x265? And how come the WEB-DL upload has hdr10+ in it (i dont remember dune 2 has hdr10+ on either disc or streaming wise)?

[Rororororo]

when you transfer 4.0 to 2.9, yes.

L3 = offset to L1... L1+L3 = Algo automatic tone mapping when the content exceeds your TV capabilities
L8 = artistic trim pass(es), manually done by the colorist for a more accurate tone mapping when the content exceeds your TV capabilities
L9 = Mastering display primaries color are signaled shot by shot for better alignment with the metadata bitstream carriage.
https://www.youtube.com/watch?v=DcN6a57DYAc
https://www.youtube.com/watch?v=15HTaR0hRvI

Thanks. Great info.

On a different note, is there a way to know which is the right streaming file to download? For example, I see these two uploads for dune 2:

Dune.Part.Two.2024.Eng.Fre.Ger.Ita.Spa.2160p.WEBMux.DV.HDR.HEVC.Atmos-SGF

Dune.Part.Two.2024.2160p.WEB-DL.DV.HDR10.PLUS.ENG.LATINO.HINDI.DDP5.1.Atmos.H265.MP4-BEN.THE.MEN

How is WEBMux different from WEB-DL? Does it matter if it is hevc or h265 or even x265? And how come the WEB-DL upload has hdr10+ in it (i dont remember dune 2 has hdr10+ on either disc or streaming wise)?

WEBMux is the highest quality you can achieve via streaming service, like remux in bdremux. Both of them got the DoVi 8.1, but the second one is also HDR10+ Profile B compatible. There’s also DoVi 5 available

[deadchip12]

WEBMux is the highest quality you can achieve via streaming service, like remux in bdremux.

oops I downloaded the 2nd one instead of the WEBMux. Does it matter since I will only use the file to transfer the cmv4.0 rpu to the bluray version?

[deadchip12]

@RESET_9999 I just read your comment under the Transfer CMV4.0 bloc tutorial:

PS: I made a small mistake. At the end, you should verify the scene cuts with the BL using the synced P5 or P8 RPU and not the final P7 RPU because the P7 cmv4.0 rpu will have untouched L1L2 and scene cuts.

I see you dragged the Fast.X.2023.BD cmv2.9 P7 FEL _ CMV4.0.bin into workflow 2-3. Is that where it is wrong? Which file should be dragged in instead?

[RESET_9999]

2-6 will output two RPUs, one that says ''verify_sync'' and another one that says '' L3_L8_L9_transfered''
isn't it obvious which one to verify sync and which is the P7 cmv4.0 rpu ?

[deadchip12]

2-6 will output two RPUs, one that says ''verify_sync'' and another one that says '' L3_L8_L9_transfered''
isn't it obvious which one to verify sync and which is the P7 cmv4.0 rpu ?

On my end there's no verify sync file... Something must have gone wrong then.

[RESET_9999]

On my end there's no verify sync file... Something must have gone wrong then.

you have to sync the web rpu directly in 2-6... Read the other note in the comments. When i did this tutorial, the script could not re-sync or fix the framecount mismatch in 2-6

[deadchip12]

On my end there's no verify sync file... Something must have gone wrong then.

you have to sync the web rpu directly in 2-6... Read the other note in the comments. When i did this tutorial, the script could not re-sync or fix the framecount mismatch in 2-6

I already synced the rpu using 2-6. I checked the final mkv file's dovi L1 plot and it was exactly the same as the original bluray file's dovi L1 plot, so that is a good indicator that the syncing was done successfully. I just didn't see the verify sync file. I may have deleted it accidentally. Will try with another movie.

[RESET_9999]

it was exactly the same as the original bluray file's dovi L1 plot, so that is a good indicator that the syncing was done successfully.

No, because in 2-6, you don't touch L1/L2 and scene cuts of the original P7 RPU, you just add L3-L8-L9. This is exactly the same mistake I did in the video.
Also, even if you did plot the ''verify_sync'' rpu, L1 could still look slightly different because sometimes WEB has less or more scene cuts in the beginning which would change the L1 plot graph. What matters is that your ''verify_sync'' rpu scene cuts match the P7 rpu/BL

[sofakng]

Well, the only group I would 100% trust is 3L and it's only because I know him personally and I know that he always does all the necessary checks.

Same for their Black Widow release and others.

Can you check the 3L release of Black Widow? They released DV HYBRID but according to your spreadsheet they are different grades?

Similarly, 3L released the following movies:
Star Wars 3 (your spreadsheet says the metadata is out of sync on the original P5 WEB-DL)
Inside Out (your spreadsheet says it has an MDL mismach)

Is it possible that 3L fixed these issues? I'm not sure they would have corrected Black Widow though if it's different grades?