I’m finding myself more and more needing to use other solutions to playback my movies, as many new releases are coming with DV. Is there any expectations that 2-layer profile 7 will be fully supported in MKV files on ShieldTV in the foreseeable future? I’d really like to continue using Plex as my main way to watch movies.
You can use MakeMKV to get a playable DoVi mkv. It embeds the second layer data into the primary layer, and this is compatible with Plex on the Shield.
As far as I’ve read, the Shield discards the EL data and only decodes the RPU data, but it should play correctly otherwise. This is a Shield limitation in it’s DoVi decoder.
The movies play, but they don’t look right. They’re washed out and black level is raised. This isn’t a limitation of the Shield, as there are XBMC builds that play this content flawlessly on the same unit.
Does your TV indicate it’s displaying DoVi? What display mode is the Shield set to?
FYI, the Shield “limitation” isn’t usually noticable. I just brought it up because it technically displays movies differently than devices that can fully decode the EL layer, but it’s not the issue you’re describing so it’s not the problem.
the “red tint” issue with certain DV remux files is very noticeable.
This isn’t the red tint issue. Playback of the type of DV that’s used on streaming services works fine. DV from my 4k UHD disks are not. The image is washed out. The same files play perfectly on the Kodinerd build of XMBC on the same Shield TV Pro.
I was actually able to recreate the exact same behaviour tonight on my Zidoo Z9X, by setting Dolby Vision to be player led (LLDV) rather than TV led. So now I’m wondering if this might be the issue in Plex, although there’s no option to change this behaviour (if it is in fact the issue).
I’ve posted about this issue before and never got any reply. I’ve seen other people post about it in the past and they were told it was due to profile 10 not being fully supported, which is why I thought that was the cause of this issue.
Just FYI - no such thing.
I believe you’re speaking about DV Profile 7, the variety on UHD Blu-ray discs. That form of DV has two video layers. The layers are each encoded with H.265 / HEVC, Main 10 profile.
H.265 / HEVC Main 10 is the most common, bog-standard kind of H.265 / HEVC.
Ahhh … I see. I was looking where it said “Profile main 10”. Now I see “D O V I Profile 7” on the affected movies.
D O V I B L Compat I D 6
D O V I B L Present true
D O V I E L Present true
D O V I Level 6
D O V I Present true
D O V I Profile 7
D O V I R P U Present true
D O V I Version 1.0
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DV from UHD rips works fine for me (apart form the ones affected by red tint).
if yours look washed out then you are doing something wrong during the rip process.
Nothing is wrong with the rips. They work fine in XBMC and on a Zidoo Z9X.
well something must be wrong if you are saying they looked “washed out”.
which version of the shield do you have? as only the 2019 models support DV.
Yes, something is wrong. I have the latest Shield Pro and it can output this format fine. Again, I will state that KODI works fine on the same Shield. The problem only happens when using Plex.
you can keep stating irrelevant facts about Kodi, but isn’t going to help the discussion.
i have 2 shields, 2019 pro and 2019 non-pro.
both play DV profile 7 content from plex just fine (excluding the red tint issue).
so YOU are doing something wrong somewhere, however it’s not that plex doesn’t support it, because it does.
Just because it works for you doesn’t mean there isn’t an issue with Plex. I’m marking you as ignored, since you don’t seem willing to provide any helpful suggestion and just want to argue blame. I will not see any further replies from you.
You didn’t answer my questions from earlier in the thread. Does your TV indicate it’s displaying Dolby Vision? It sounds like your videos are transcoding, not direct playing. What does the Server dashboard say when you play?
Sorry, I missed your question. Yes, the TV is showing DV and the Plex server doesn’t show any transcoding.
EDIT:
I think I have a better way to explain what I’m seeing. If a full RGB signal is set to a display that’s forced to limited RGB, you’d get a very similar result as I’m seeing with this DV content.
If you don’t know what to look for, I don’t think that most people would notice.
I have some black level test files. Let me see if I can figure out where I got them - if I can share a link, or I’ll PM you.
I’ve used content from the Spears & Munsil UHD calibration disk to test. It’s definitely not right when outputting Dolby Vision. Kodi looks perfect with the same content.
I’m going to do a test later, to see if it might be a case where the output from Plex is making my TV go in to the wrong color space. I’ll see if manually setting the color space on the TV helps at all.
and just because it doesn’t work for you means that it is an issue with plex.
ignore all you want, makes no difference to me.
if DV wasn’t working correctly in Plex we’d know about it more than just you would be reporting it.
This problem appears to be resolved with 9.6.0.33938-beta. I’d imagine the ExoPlayer update is what fixed it.
EDIT:
I’ve been doing a bunch of comparison testing this evening. Compared against a Zidoo Z9X, Panasonic UB820 UHD Player and the KodiNerds build of Kodi on the ShieldTV. I also set up another ShieldTV with the latest release version of Plex that has the DV issue mentioned in this thread. I can fully confirm that the problem I was experiencing is fixed in the beta.
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