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Re: Dolby Vision now possible through MP4 Mux.
Posted: Tue Aug 04, 2020 3:49 am
by shawnc22
SamuriHL wrote: Tue Aug 04, 2020 2:58 am
shawnc22 wrote: Mon Aug 03, 2020 11:36 pm
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.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Tue Aug 04, 2020 5:00 am
by SamuriHL
That would be good. Better still if they could fix it.
Sent from my SM-G975U using Tapatalk
Re: Dolby Vision now possible through MP4 Mux.
Posted: Tue Aug 04, 2020 6:46 am
by 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’.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Thu Aug 06, 2020 9:03 am
by 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.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Thu Aug 06, 2020 10:48 am
by SamuriHL
I wonder if they finally fixed the near black issues when calibrating Dolby vision. Interesting.
Sent from my SM-G975U using Tapatalk
Re: Dolby Vision now possible through MP4 Mux.
Posted: Thu Aug 06, 2020 2:55 pm
by McZuzlak
MastaG wrote: Thu Aug 06, 2020 9:03 am
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.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Thu Aug 06, 2020 10:19 pm
by MastaG
McZuzlak wrote: Thu Aug 06, 2020 2:55 pm
MastaG wrote: Thu Aug 06, 2020 9:03 am
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.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Thu Aug 06, 2020 11:08 pm
by 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
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Aug 07, 2020 12:21 am
by shawnc22
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?
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Aug 07, 2020 12:33 am
by RESET_9999
shawnc22 wrote: Fri Aug 07, 2020 12:21 am
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 !!!
shawnc22 wrote: Fri Aug 07, 2020 12:21 am
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.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Aug 07, 2020 1:13 am
by 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.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Aug 07, 2020 3:47 pm
by 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.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Aug 07, 2020 8:53 pm
by 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.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Aug 07, 2020 8:58 pm
by mike admin
McZuzlak wrote: Fri Aug 07, 2020 3:47 pm
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.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sat Aug 08, 2020 5:33 pm
by RESET_9999
shawnc22 wrote: Fri Aug 07, 2020 12:21 am
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
