Dolby Vision now possible through MP4 Mux.

[PU7jJ]

Hi,

Thanks for all the help and information, I have some questions in regards to one video file.
It's a BCore HDR10 rip, in full color range. I took measurements with Madvr, converted to a rpu, edited l5.
Is there a way to edit the flag in the rpu for full range color? I haven't found a way to edit this header data in an rpu.
Playing the file back as DV with the "bl_video_full_range_flag" as 'false' results in crushed blacks because of the level mismatch with the BL.
Would it take more than switching that to 'true'?

Also, what exactly does using the madvr measurements method do? Is this a viable way to maybe approach the 'real' dynamic metadata, or should I see it more as just a way to put the HDR10 static metadata in a DV container, maybe like those media players with the 'VS10 engine' do on the fly?

[RESET_9999]

Is there a way to edit the flag in the rpu for full range color? I haven't found a way to edit this header data in an rpu.

If your device support MKV DV, it can be done with mkvmerge, you change the BL from full to limited. I did it a couple of times, it works great on the shield.

Code: Select all

"C:\Program Files\MKVToolNix\mkvmerge.exe" -o X:\output.mkv --colour-range 0:1  X:\input.mkv

it revert back to full range with tsmuxer and mp4muxer.

Also, what exactly does using the madvr measurements method do? Is this a viable way to maybe approach the 'real' dynamic metadata, or should I see it more as just a way to put the HDR10 static metadata in a DV container, maybe like those media players with the 'VS10 engine' do on the fly?

It's really dynamic and very close to the original DV. It measures each pixel just like the Dolby algo and the dovi_tools use those values to create proper L1 metadata.
I've compared with the Spears and Munsil clip and the scene cuts (brightness changes) are exactly the same as the original. The difference is the trim passes which are optional in DV.

[yossSP]

Hello, I’m trying to makes things work for movies with Dolby Vision FEL and TrueHD Atmos/DTS:X.

1- Yes
2- I never tried with the HDMI out 2 but it should work, I don't see why it wouldn't. X700 supports DTS-X and TrueHD Atmos passthrough.
3- Yes, but the ethernet is only 100mbps. Lossless audio should be supported as well via your network. I use a USB, so maybe other users can confirm.

Why does DV mp4 from netflix play as HDR on non-DV screen while DV mp4 from disney plus will show a green sdr on non-DV screen? Is there a way to convert the disney DV?

Because most of the Netflix web-dl were converted from profile 5 to profile 8 (with an HDR10 BL).
Some release groups prefer that instead of releasing a DV p5 and an HDR10 version.

There apparently was a big 158MB Google Chromecast update released today that includes Dolby Vision playback performance as a line item in the change log - anybody that can test if it improves performance or maybe allows lossless audio?

Thanks!

I wonder if they fixed the problem that LLDV is the default mode.

You're saying Chromecast Google TV plays FEL? Under what conditions? Using Plex? A specific version of Kodi? Dual track P7 Dolby Vision?

PLEX, MKV ST-DL.

Hi everybody. I contributed this thread several months ago with my experience with Chromecast with Google TV, I'm happy with this device, I was looking for a small device that could camouflage in the furniture without being seen, and the priority was that it could deliver the best picture quality my Panasonic HZ1000 could bring, so the support of FEL DV was critical.

Regarding audio, the Chromecast with Google TV supports:

• Dolby Digital
• Dolby Digital Plus
• Dolby digital Plus + Dolby Atmos
• DTS
• Passthrough of DTS Core 5.1 inside DTS-HD
• AAC
• PCM

And doesn't support:

• Dolby TrueHD
• Dolby TrueHD + Dolby Atmos
• DTS-HD
• DTS-X

At the moment, in my country there is almost no Atmos/DTS-X film in my language, and I'm not capable of enjoy a film in english (my english is not so good), so I will live without positional audio a long time. Also my AVR doesn't support Atmos or DTS-X, but it's capable with Dolby TrueHD and DTS-HD.

So my solution is to convert the best quality audio in my language if it's not supported. I do it with ffmpeg converting to EAC3 5.1 1536kbps, and adding it as default audio track. Practically there is no film with more than 5.1 channels in my language and my ear can't distinguish the new track from the original.

But it's my particular case, each one will be different.

Almost a year later, it seems there is not much more offer in the market that can fully play DV FEL titles.

But I've got a question spinning in the head, this device supports both Player-Led(LLDV) and TV-Led Dolby Vision playback, but it defaults LLDV, it seems that even when the TV supports TV-Led, like my Panasonic OLED HZ1000 and all the other new TVs, that support both modes. It's confirmed by Google technical support, who I asked about this.

RESET_9999, Manix or other member that can answer, do you know if there is a substantial loss of quality with the CCwGTV playing DV FEL files in LLDV compared with TV-Led.

First of all I have to say that, in my setup, I can't confirm if it plays in LLDV or Player-LED, my TV can't show any info of this kind. I have tested facts:

• Vincents Teoh says that during a TV-LED playback Dolby Vision IQ can't use the light sensor of the TV, with my Panasonic HZ1000 the sensor is regulating correctly the brightness on the image.
• I have changed the DV mode supported by my TV from 1(mainly TV-Led playback) to 2(mainly Player-Led playback) and the image quality, colour and brightness seems the same.

Those who have tested it against other device, ¿could you compare the image quality between the CCwGTV TV-Led playback against other full DV FEL player with TV-Led? ¡Thanks!

[RESET_9999]

So my solution is to convert the best quality audio in my language if it's not supported. I do it with ffmpeg converting to EAC3 5.1 1536kbps, and adding it as default audio track. Practically there is no film with more than 5.1 channels in my language and my ear can't distinguish the new track from the original.

E-AC3 1536kbps from ffmpeg is really good, much better than lossy DTS 1536kbps and very close to DTS-HD quality. I just wish ffmpeg supported 7.1 channel. https://forum.doom9.org/showthread.php?t=177346&page=4

it's confirmed by Google technical support, who I asked about this.

Did they say if they are ever going to change that?

RESET_9999, Manix or other member that can answer, do you know if there is a substantial loss of quality with the CCwGTV playing DV FEL files in LLDV compared with TV-Led.

I think the problem is something in the RPU not being applied correctly so yeah there is some quality loss like the Vincent video showed. FEL or MEL, the bug is the same.
We will know more when the new Spears and Munsil disc is out

[yossSP]

So my solution is to convert the best quality audio in my language if it's not supported. I do it with ffmpeg converting to EAC3 5.1 1536kbps, and adding it as default audio track. Practically there is no film with more than 5.1 channels in my language and my ear can't distinguish the new track from the original.

E-AC3 1536kbps from ffmpeg is really good, much better than lossy DTS 1536kbps and very close to DTS-HD quality. I just wish ffmpeg supported 7.1 channel. https://forum.doom9.org/showthread.php?t=177346&page=4

Me too, perhaps in a future

it's confirmed by Google technical support, who I asked about this.

Did they say if they are ever going to change that?

Absolutely, I have to wait almost 2 months to receive the answer, so they will escalate the question to the "next level of technical support", and the reply was as concised as I told. I've never reply again, they're too slow and brief.

I think the problem is something in the RPU not being applied correctly so yeah there is some quality loss like the Vincent video showed. FEL or MEL, the bug is the same.
We will know more when the new Spears and Munsil disc is out

Ok, I just found this thread: https://www.avforums.com/threads/is-dol ... 299/page-2
A user says: "So Dolby Vision on HZ series isn't as bad as I thought overall. HZ1000 paired with newest Chromecast didn't show the same issues as with Sony X700 in player-led mode. Comparing TV-led output from X700 and player-led from Chromecast, I couldn't spot any differences - APL seemed equal, highlights were nice and bright without any differences in clipping and couldn't see any added posterization. And no frame-skipping of course, as expected from player-led. All blu-ray players should perform equally in terms of player-led output quality so I doubt it's my X700's fault, but nice to see that player-led is usuable on some of the streaming devices at least."

Thanks for your reply

[RESET_9999]

Ok, I just found this thread: https://www.avforums.com/threads/is-dol ... 299/page-2
A user says: "So Dolby Vision on HZ series isn't as bad as I thought overall. HZ1000 paired with newest Chromecast didn't show the same issues as with Sony X700 in player-led mode. Comparing TV-led output from X700 and player-led from Chromecast, I couldn't spot any differences - APL seemed equal, highlights were nice and bright without any differences in clipping and couldn't see any added posterization. And no frame-skipping of course, as expected from player-led. All blu-ray players should perform equally in terms of player-led output quality so I doubt it's my X700's fault, but nice to see that player-led is usuable on some of the streaming devices at least."

Thanks for your reply

Maybe something changed since then but when I had a Chromecast (months ago), I checked the lldv bug and it was as bad as the x700 or the shield.
With the Spears and munsil Eagle beak scene, you can't miss it.

[DolbyVisionFTW]

We will know more when the new Spears and Munsil disc is out

Is there an ETA for that, do you know?

Thanks.

[RESET_9999]

We will know more when the new Spears and Munsil disc is out

Is there an ETA for that, do you know?

Thanks.

No date yet
https://forum.blu-ray.com/showthread.ph ... 27&page=51
https://www.avsforum.com/threads/spears ... 80/page-80

[Albano]

Check the video resolution.
3840x2160 = black bars hardcoded or 16:9 content

cropped video resolution will be something like this: 3840x1600

Now, I have one 4K HDR10 Blu-ray disc and I want to remux to DV.
Please tell me the way to do, detail in step by step because I'm learning at remux DV.
Sorry, my English is very bad.

[DolbyVisionFTW]

I meant, converting to profile 8 allows me to playback in HDR10(in SDR actually) on my PJ and in DV on my TV.

Do you play all Dolby Vision media on your tv using the Sony x700 via USB or across a home network?

Thanks for sharing so much info and replying to my queries, really appreciated.

[RESET_9999]

Now, I have one 4K HDR10 Blu-ray disc and I want to remux to DV.
Please tell me the way to do, detail in step by step because I'm learning at remux DV.
Sorry, my English is very bad.

Sorry English is not my native tongue too so there's not much more I can do to help you. Everything you need is in the video and once you understand how to edit the bat file to your path (right-click/modify), you just have to replicate what I do.

E.G.: the INJECT bat file command is:

Code: Select all

D:\Dolby-Vision-Tools\dovi_tool.exe inject-rpu -i D:\Dolby-Vision-Tools\HDR10.hevc --rpu-in D:\Dolby-Vision-Tools\rpu.bin

If you happen to have a D:\ drive , just put the Dolby-Vision-Tools folder (without renaming it) there.
if your drive is for example F:\ then just edit all the bat and replace D:\ by F:\

Code: Select all

F:\Dolby-Vision-Tools\dovi_tool.exe inject-rpu -i F:\Dolby-Vision-Tools\HDR10.hevc --rpu-in F:\Dolby-Vision-Tools\rpu.bin

if you only have1 drive, a C:\ drive and your working folder is the video folder ( C:\Users\your.windows.username\Videos ), same thing. put the Dolby-Vision-Tools folder (without renaming it) there.

Code: Select all

C:\Users\your.windows.username\Videos\Dolby-Vision-Tools\dovi_tool.exe inject-rpu -i C:\Users\your.windows.username\Videos\Dolby-Vision-Tools\HDR10.hevc --rpu-in C:\Users\your.windows.username\Videos\Dolby-Vision-Tools\rpu.bin

Do you play all Dolby Vision media on your tv using the Sony x700 via USB or across a home network?
Thanks for sharing so much info and replying to my queries, really appreciated.

yeah, I use my x700 via USB for DoVi but sometimes I'm too lazy to transfer a movie on my USB drive so I just watch it with my C8 internal plex app.

[Albano]

Sorry English is not my native tongue too so there's not much more I can do to help you. Everything you need is in the video and once you understand how to edit the bat file to your path (right-click/modify), you just have to replicate what I do.

E.G.: the INJECT bat file command is:

Code: Select all

D:\Dolby-Vision-Tools\dovi_tool.exe inject-rpu -i D:\Dolby-Vision-Tools\HDR10.hevc --rpu-in D:\Dolby-Vision-Tools\rpu.bin

If you happen to have a D:\ drive , just put the Dolby-Vision-Tools folder (without renaming it) there.
if your drive is for example F:\ then just edit all the bat and replace D:\ by F:\

Code: Select all

F:\Dolby-Vision-Tools\dovi_tool.exe inject-rpu -i F:\Dolby-Vision-Tools\HDR10.hevc --rpu-in F:\Dolby-Vision-Tools\rpu.bin

if you only have1 drive, a C:\ drive and your working folder is the video folder ( C:\Users\your.windows.username\Videos ), same thing. put the Dolby-Vision-Tools folder (without renaming it) there.

Code: Select all

C:\Users\your.windows.username\Videos\Dolby-Vision-Tools\dovi_tool.exe inject-rpu -i C:\Users\your.windows.username\Videos\Dolby-Vision-Tools\HDR10.hevc --rpu-in C:\Users\your.windows.username\Videos\Dolby-Vision-Tools\rpu.bin

Thanks for replying.
Is this tool the same tool used to scan video files in your clips?
https://www.avsforum.com/threads/madvr- ... s.3040072/

[RESET_9999]

@Albano it use the same madvr but you only need it if you want to add a peak brightness or dynamic clipping. I didn't use it in the video.

[DolbyVisionFTW]

yeah, I use my x700 via USB for DoVi but sometimes I'm too lazy to transfer a movie on my USB drive so I just watch it with my C8 internal plex app.

Is the internal Plex app better than the modified Exoplayer for Dolby Vision playback, do you know? A friend of mine owns a LG C9 and I’m not sure which would be the better app for him to use? He doesn’t have a media library of his own so doesn’t need that feature for Plex at this time.

[nissen22]

Is there no way whatsoever to play a FEL profile 7 DV movie without using a bluray + bluray player on my LG C1 OLED?

I can get 8.1 to work on Jellyfin (using tsmuxer + yusesope's tool + dlb_mp4base on the BDMV dirs to convert to DV 8.1), but testing on the movie 1917 it actually looks a bit darker in DV profile 8.1 than ordinary HDR10 (maybe that's how it's supposed to look, idk...). Should I just stick to HDR10 to get rid of this headache?