Dolby Vision now possible through MP4 Mux.

[shawnc22]

caveat is Dolby did put out the instructions themselves to convert dual PID to single PID so somebody was bound to try it , but excuse me while I go disable auto-update on my Shield...

You're not wrong but I think they figured "screw everyone, there's no devices that'll play them anyway so let's tease them." Now it's going to be "oh shit! STOP THAT!" I really hope I'm wrong. Dolby honestly needs a bit more support anyway because HDR10+ is a fairly strong standard. And nVidia is obviously paying them their mafia payout, er, I mean licensing fees. So we'll see. But yes, disabling auto-update may be a joke, but, maybe we let other people experiment with that going forward. COUGH COUGH

There's also Dolby's own mp4muxer that does something similar and creates files that, for some reason, are playable on LG TVs. So I'm optimistic here that nvidia will, at worst, keep things as is and not roll back any features.

[SamuriHL]

That would be good. Better still if they could fix it.

Sent from my SM-G975U using Tapatalk

[DaMacFunkin]

All I know is that Dolby hates MKV, if you have an Oppo, Dolby’s HDR10 tone mapping will not work on MKV files, the Oppo documentation actually states ‘Dolby sees MKV as piracy’.

[MastaG]

New firmware for 2018 LG OLED models released today.
Version 05.20.0x and it seems to update the Dolby Vision version.
Didn't do any testing yet. But I'm curious whether it could fix some of the performance problems with FEL remuxes.

[SamuriHL]

I wonder if they finally fixed the near black issues when calibrating Dolby vision. Interesting.

Sent from my SM-G975U using Tapatalk

[McZuzlak]

some of the performance problems with FEL remuxes.

What kind of performance problems ? Ob my LG C7 ( not 2018 but close ) I didn't saw any.

[MastaG]

some of the performance problems with FEL remuxes.

What kind of performance problems ? Ob my LG C7 ( not 2018 but close ) I didn't saw any.

Movies such as 1917 or Gemini Man (which is a high frame rate movie) will only play if you remux them with metadata only (mode 2 using yusesope's tool).
If you remux it as dual pid (using mp4muxer) or mode 1 with yusesope's tool (e.g. keeping the full enhancement layer). It will stutter.

[RESET_9999]

Here's proof that the red artifacts on the Doctor Sleep UHD-BD rip is a different issue and have nothing to do with the BT2020 flag. But that doesn't mean the bt2020 flag does nothing to the image.

Shield Default bt2020 RGB Movies Anywhere (fullrange profile 5) VS Shield Default bt2020 UHD-BD RIP
https://screenshotcomparison.com/comparison/5222

So there are actually 2 issues:

1- one that causes a red push on all the UHD-BD rip. The problem is not the file because the SL-DL is identical to the profile 7 DL on my x700 as shown here: https://screenshotcomparison.com/comparison/4913

2- a 2nd red push caused by the bt2020 flag that affects all the streaming app and plex
Shield Default bt2020 UHD-BD RIP VS Shield RGB vertex UHD-BD RIP
https://screenshotcomparison.com/comparison/5224

Shield Default bt2020 RGB Movies Anywhere VS Shield RGB vertex Movies Anywhere
https://screenshotcomparison.com/comparison/5225

Shield Default bt2020 RGB NETFLIX VS Shield RGB vertex NETFLIX:
https://screenshotcomparison.com/comparison/5188


you can clearly see that removing the bt2020 flag fix the red push on profile 5 full range files. In fact, it's slightly affecting all the colors. blue green red yellow

[shawnc22]

Here's proof that the red artifacts on the Doctor Sleep UHD-BD rip is a different issue and have nothing to do with the BT2020 flag. But that doesn't mean the bt2020 flag does nothing to the image.

Shield Default bt2020 RGB Movies Anywhere (fullrange profile 5) VS Shield Default bt2020 UHD-BD RIP
https://screenshotcomparison.com/comparison/5222

So there are actually 2 issues:

1- one that causes a red push on all the UHD-BD rip. The problem is not the file because the SL-DL is identical to the profile 7 DL on my x700 as shown here: https://screenshotcomparison.com/comparison/4913

2- a 2nd red push caused by the bt2020 flag that affects all the streaming app and plex
Shield Default bt2020 UHD-BD RIP VS Shield RGB vertex UHD-BD RIP
https://screenshotcomparison.com/comparison/5224

Shield Default bt2020 RGB Movies Anywhere VS Shield RGB vertex Movies Anywhere
https://screenshotcomparison.com/comparison/5225

Shield Default bt2020 RGB NETFLIX VS Shield RGB vertex NETFLIX:
https://screenshotcomparison.com/comparison/5188


you can clearly see that removing the bt2020 flag fix the red push on profile 5 full range files. In fact, it's slightly affecting all the colors. blue green red yellow

The tag is going away in the next firmware release so I'm glad we're at least solving one issue. Have you had a chance to look at that LG profile 4 BL+EL+RPU video to see if you notice any oddities when compared to another soc?

[RESET_9999]

The tag is going away in the next firmware release so I'm glad we're at least solving one issue.

Really can't wait for that !!!

Have you had a chance to look at that LG profile 4 BL+EL+RPU video to see if you notice any oddities when compared to another soc?

Damn, this is on my todo list but I completely forgot. I'll try that tomorrow night. thank's for reminding me.

[SamuriHL]

Well....it's an improvement. We'll see what they turn up. Especially with their discussion with Dolby. But at least the BT.2020 flag being removed should help. I still don't understand how that works with my UB820 because it's sending the BT.2020 flag and it's definitely doing the correct colors.

[McZuzlak]

Out of curiousity did anyone try reencoding the BL ( same res just lower bitrate x265 ) and then mux it with the original EL into mp4? I wonder if that would be still playble on my LG C7 internal player.

[BringerChaos]

I don't suppose anyone happens to know which profile(s) work on Sony Bravia KD-65X9500G via plex OR Firestick 4K plex?
Also if its capable of playing both BL+EL+RPU or BL+RPU?
TV doesn't have a dolby vision icon haha.

[mike admin]

Out of curiousity did anyone try reencoding the BL ( same res just lower bitrate x265 ) and then mux it with the original EL into mp4? I wonder if that would be still playble on my LG C7 internal player.

Non-MEL EL contains residue - i.e. result=some_RPU_magic_function(BL+EL) . By changing BL (and re-encoding is a destructive process) you are bound to get an incorrect result.

[RESET_9999]

Have you had a chance to look at that LG profile 4 BL+EL+RPU video to see if you notice any oddities when compared to another soc?

Nop, I cannot get a match with that LG profile 4 BL+EL+RPU video or any video that has an EL.
Shield Plex RGB vertex VS LG C8 internal app
https://screenshotcomparison.com/comparison/5268


So I thought maybe the problem was caused by the DV files that are HDR10 and DV compatible(limited range). So I compared the Glass Blowing BL+ RPU demos. One is HDR10 and DV compatible(limited range) and the other video is full range profile 5 DV only.
looks pretty much the same to me.. I still see a slight difference compared to the C8(but not in real life) but nothing major like any BL+EL+RPU.

*notes: the glass blowing samples don't work in my x700 so that's why I used the c8 for the comparisons. Downside: almost impossible to pause at the same frame.

Shield-DV-HDR10-sample


Shield-DV only full-range-sample


LG C8 internal app Full range sample




full range sample:

Code: Select all

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@Main
HDR format                               : Dolby Vision, Version 1.0, dvhe.05.09, BL+RPU
Codec ID                                 : dvh1
Duration                                 : 2 min 55 s
Bit rate                                 : 15.2 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 59.940 (60000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 10 bits
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.031
Stream size                              : 317 MiB (96%)
Default                                  : Yes
Alternate group                          : 1
Color range                              : Full
Codec configuration box                  : hvcC+dvcC

DV + HDR10 sample:

Code: Select all

ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@Main
HDR format                               : Dolby Vision, Version 1.0, dvhe.08.09, BL+RPU, HDR10 compatible / SMPTE ST 2086, HDR10 compatible
Codec ID                                 : hev1
Codec ID/Info                            : High Efficiency Video Coding
Duration                                 : 2 min 55 s
Bit rate                                 : 15.1 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 59.940 (60000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.030
Stream size                              : 316 MiB (96%)
Default                                  : Yes
Alternate group                          : 1
Color range                              : Limited
Color primaries                          : BT.2020
Transfer characteristics                 : PQ
Matrix coefficients                      : BT.2020 non-constant
Mastering display color primaries        : BT.2020
Mastering display luminance              : min: 0.0050 cd/m2, max: 4000 cd/m2
Codec configuration box                  : hvcC+dvvC