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Why won't directplay pass 4k hdr and Dolby vision files?

tomb18tomb18 Posts: 54Members, Plex Pass Plex Pass

I have plex media player connected to an LG 4k oled tv via a nvidia gtx960. Hardware decoding is enabled and Deep Color is enabled on the TV over the HDMI port. The videos reside on a synology nas.
The videos play fine, hardware decoding works but nine of the files will switch the TV into her or Dolby mode. The files are 10bit hvec mkv hdr or Dolby. These same files will play fine if placed on a usb key
I though that direct play would just pass anything through. Is this not the case or is something not configured correctly.
Thanks

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Comments

  • DaveBinMDaveBinM Posts: 1,250Members, Plex Pass, Plex Ninja Plex Ninja

    What device are you using for running PMP on?

    Server: Late 2014 Mac Mini [3.0Ghz i7-4578U, 16GB RAM, 256GB SSD]
    Storage: Synology DS1815+ [HGST DeskStar 3TB x 4, HGST DeskStar 6TB x 2 and HGST DeskStar 8TB x 2]
    Clients: PMP (Mac & Windows). iPhone. iPad. PS4. Android. Android TV. Web.

    Help: Support | PMS Logs | PMP Logs | iOS Logs | Media XML

  • tomb18tomb18 Posts: 54Members, Plex Pass Plex Pass

    This is a home theater pc, that uses a nvidia gtx960. Win10 .
    The nvidia card is set for 4:4:4: chroma which is probably incorrect.. ..

  • tomb18tomb18 Posts: 54Members, Plex Pass Plex Pass

    I believe that according to the nvidia developers blogs, you need to set rob 10 or 11 bit and exclusive mode...havent tried it yet. Anyone else have success?

  • tomb18tomb18 Posts: 54Members, Plex Pass Plex Pass

    That's rgb 10 or 12 bit

  • DaveBinMDaveBinM Posts: 1,250Members, Plex Pass, Plex Ninja Plex Ninja

    Just as an aside, Direct Play != Passthrough, it just means the player can decode and playback the content from it's encoded form (whether h264, h265, VC-1, MPEG2VIDEO, DTS, AC3, ALAC, etc.). While PMP certainly supports 4K, I'll admit I'm not 100% sure on HDR10 or Dolby Vision, or if there is a passthrough option for video available via MPV.conf.

    Server: Late 2014 Mac Mini [3.0Ghz i7-4578U, 16GB RAM, 256GB SSD]
    Storage: Synology DS1815+ [HGST DeskStar 3TB x 4, HGST DeskStar 6TB x 2 and HGST DeskStar 8TB x 2]
    Clients: PMP (Mac & Windows). iPhone. iPad. PS4. Android. Android TV. Web.

    Help: Support | PMS Logs | PMP Logs | iOS Logs | Media XML

  • DaveBinMDaveBinM Posts: 1,250Members, Plex Pass, Plex Ninja Plex Ninja

    After a little bit of a chat with the devs, it doesn't sound like HDR10 or Dolby Vision are supported at this time, however, it should resample HDR video down to 8-bit to at least make it possible. However, I don't have any HDR content or an appropriate display to test this on, so I'm more than happy to be proven wrong here. :)

    Server: Late 2014 Mac Mini [3.0Ghz i7-4578U, 16GB RAM, 256GB SSD]
    Storage: Synology DS1815+ [HGST DeskStar 3TB x 4, HGST DeskStar 6TB x 2 and HGST DeskStar 8TB x 2]
    Clients: PMP (Mac & Windows). iPhone. iPad. PS4. Android. Android TV. Web.

    Help: Support | PMS Logs | PMP Logs | iOS Logs | Media XML

  • tomb18tomb18 Posts: 54Members, Plex Pass Plex Pass

    Hi,
    It would seem that it is resampled to 8 bit. HDR mode or DV mode does not turn on on the TV in contrast to using the USB key. It also seems to maintain a decent picture even though the video is HDR 10 bit or Dolby vision.
    Now the question is how much of this is related to windows. The upcoming Creators edition has built in support for HDR and Dolby vision. This has been released but will take some time to update all PC's.
    I guess it will come.
    It may be a moot point however. All HDR and DV movies are only available on UHD Blu-Ray and may only be forever.
    At least my local video rental store rents 4K Movies! Time to visit them.

  • NekkoStreamNekkoStream Posts: 77Members, Plex Pass, Plex Pro Installer Plex Pass

    How did you save the 4K bluray to a file?

  • tomb18tomb18 Posts: 54Members, Plex Pass Plex Pass

    Hi,
    As far as I am aware, you can't. But there is still some content available as files, mostly demos. And the new UHD PC players, will probably increase this capability.

  • DaveBinMDaveBinM Posts: 1,250Members, Plex Pass, Plex Ninja Plex Ninja

    As far as I'm aware, the only legally available 4K HDR content you can load into PMS at this time are demo files.

    Server: Late 2014 Mac Mini [3.0Ghz i7-4578U, 16GB RAM, 256GB SSD]
    Storage: Synology DS1815+ [HGST DeskStar 3TB x 4, HGST DeskStar 6TB x 2 and HGST DeskStar 8TB x 2]
    Clients: PMP (Mac & Windows). iPhone. iPad. PS4. Android. Android TV. Web.

    Help: Support | PMS Logs | PMP Logs | iOS Logs | Media XML

  • cryptochromecryptochrome Posts: 977Members, Plex Pass Plex Pass

    I am able to play back these files on Plex for Kodi and Plex for AndroidTV (nVidia Shield), but not on PMP.

    There are only 10 types of people in the world: Those who understand binary, and those who don't.
    http://flickr.com/cryptochrome
    Twitter: @cryptochrome
  • beryliumberylium Posts: 42Members, Plex Pass Plex Pass

    @cryptochrome do you mean that you can play .mkv files through your PMS to a Kodi client with the Plex addon and your TV will enable HDR10 or Dolby Vision? (i.e., play the files with full HDR metadata and colors)

    If true, may I ask what client you're using for Kodi?

  • cryptochromecryptochrome Posts: 977Members, Plex Pass Plex Pass

    @berylium said:
    If true, may I ask what client you're using for Kodi?

    Kodi for Plex on a nVidia Shield TV. Only HDR though, no Dolby Vision.

    There are only 10 types of people in the world: Those who understand binary, and those who don't.
    http://flickr.com/cryptochrome
    Twitter: @cryptochrome
  • GhostmGhostm Posts: 234Members, Plex Pass Plex Pass
    edited April 26

    I dont know about dolby vision not much supports it content wise and only certain tv brands but I hope the PMP developers start looking at HDR integration, I know madvr is working on it (havent followed where its at), Windows 10 also implemented it in its creator update (not sure if their is api to toggle the switch on or off for hdr content), nvidia shield supports it as well as newer nvidia and amd cards. Its coming and people are going to want hdr content played back and we will see more of these threads as it evolves so i at least hope its being monitored as its started to seep into pc's. PMP can do everything you throw at it at least on windows (4k, ATMOS, Dts:X) the only thing left not supported is HDR then it will have everything.

  • cryptochromecryptochrome Posts: 977Members, Plex Pass Plex Pass

    HDR is already supported, just not by every Plex client. PMP I am not sure (I doubt it, though), but all Android based clients, including nVidia Shield, do HDR.

    There are only 10 types of people in the world: Those who understand binary, and those who don't.
    http://flickr.com/cryptochrome
    Twitter: @cryptochrome
  • vlangvlang Posts: 1,615Members, Plex Employee, Plex Pass, Plex Ninja Plex Employee

    PMP does support HDR (most of it anyway), but it does not support "passing it through" to HDR TVs.

  • GhostmGhostm Posts: 234Members, Plex Pass Plex Pass
    edited May 3

    @vlang said:
    PMP does support HDR (most of it anyway), but it does not support "passing it through" to HDR TVs.

    I dont know the technical details I just enjoy it when viewing my UHD blu rays but if windows 10 HDR mode could be toggled on and off will it display properly if using pmp to an HDR set if hdr mode is on? Or does more need to be done such as passing that information from pmp to a tv?

  • Supermax@gmx.netSupermax@gmx.net Posts: 4Members ✭✭

    So does Dolby Vision stuff (ts and m2ts files) work via Plex and Chromecast ultra? Or no DV support at all :(

  • vlangvlang Posts: 1,615Members, Plex Employee, Plex Pass, Plex Ninja Plex Employee

    @Ghostm currently PMP always outputs normal range. You can basically make it output arbitrary color spaces/ranges (including HDR) via obscure backend settings. The following setting should be the most important one for HDR:

    https://mpv.io/manual/master/#options-target-trc

    (This can be put into mpv.conf, check https://support.plex.tv/hc/en-us/articles/207338798-Advanced-Configuration on the bottom.)

    Above setting will "upconvert" SDR to HDR as well.

    One problem with HDR is that you actually need higher bit depth output to avoid banding. But little software is prepared for this, and mostly just hardcodes 8 bit. (I know PMP's rendering would be fine with higher bit depth, but the problem is convincing the rest of the system not to cut off the additional bits.)

    Dolby Vision is a combination of technologies and thus an entirely different beast.

  • Supermax@gmx.netSupermax@gmx.net Posts: 4Members ✭✭

    So no chance with Dolby Vision atm? ..... Disaster

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