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High bitrate 4K movie lagging on KODI 17.1

Discussion in 'NEO U9-H' started by Runge, Mar 20, 2017.

  1. Runge

    Runge Member

    Hi guys,

    I'm having trouble playing a high bitrate 4K movie using Kodi 17.1 on the U9-H. It shows the video and audio is correctly passed-through into my receiver, but video and sound is buffering all the time and when it doesn't buffer the video is lagging.

    My TVs built-in player plays the video without any hick-ups. But it doesn't support DTS-HD MA so there's no sound (Samsung UE55KS8005) (I'm using DLNA streaming files from my Synology NAS - ethernet connected).

    I tried installing the DS Video app from Synology since I stream all my movies from the Synology NAS and this also plays the video smoothly, but also doesn't support DTS-HD MA, so no sound again.

    This is the specs of the video I'm trying to play:

    Format : Matroska
    File size : 57.8 GiB
    Overall bit rate : 67.1 Mb/s

    Video:
    Format : HEVC
    Format/Info : High Efficiency Video Coding
    Format profile : Main 10@L6.1@Main
    Codec ID : V_MPEGH/ISO/HEVC
    Bit rate : 59.7 Mb/s
    Width : 3 840 pixels
    Height : 2 160 pixels

    ----

    Any suggestions?
    skynet likes this.
  2. skynet

    skynet Well-Known Member Trusted Helper

    Same here, with nearly the same configuration and type of movie ;)
    U9 is connected with gigabit ethernet cable.

    Sent by my S7 edge
  3. Runge

    Runge Member

    Okay so I might just have found the problem.

    I tried adding my NAS using UPnP in Kodi instead of SMB and now the video plays perfectly! Only problem now is that when adding a network folder using UPnP it doesn't seem I'm able to use the library/scraper function to scan that folder... ?
  4. David_Cole

    David_Cole Member

    Up your buffer to 512 megabytes... That'll fix buffering. Standard buffer is only 8 to 15 megabytes... That's fine for small 1080p videos however 4k bitrate gets over 150 mbit at times.

    Sent from my Nexus+6 using Tapatalk
  5. skynet

    skynet Well-Known Member Trusted Helper

    Ok i'll try it. I use NFS connections.
  6. Runge

    Runge Member

    I see ...where do we change this?
  7. olive069

    olive069 New Member

    Check Advancedsettings.xml on Kodi Wiki.
  8. Runge

    Runge Member

    I've tried this now, but didn't help.

    Instead I tried out SPMC which worked just fine, smooth video and sound, no lag even when using SMB shares like I did with Kodi 17.1 ...
  9. David_Cole

    David_Cole Member

    Then you'll love xbmc minix edition... It's even better than spmc.

    Sent from my Nexus+6 using Tapatalk
  10. Runge

    Runge Member

    But has this one been updated with all the latest stuff from Kodi 17 or isn't it still based on Kodi 16?

    It's getting a bit annoying setting up Kodi library, settings, addons over and over again so want to be sure I'm choosing the right version/fork etc. :)
  11. skynet

    skynet Well-Known Member Trusted Helper

    Yes it's smoother but gave some black bands in every 4k files.
  12. David_Cole

    David_Cole Member

    I have a few addons I use... Zen(with real debrid) for movies and tv shows then Dexter and Mguide pro for live tv... Xbmc and spmc are based on 16.1 however most addons still prefer 16.1 over 17.1...i have 8 builds on my box tho.. Lots of kodi forks however... My main goto is xbmc minix edition with those 3 addons.

    Sent from my Nexus+6 using Tapatalk
  13. David_Cole

    David_Cole Member

    Never had that issue.. Not sure what group your getting your 4k from....or is it a addon? I download myself and run from Google drive to xbmc minix edition with the drive addon.

    Sent from my Nexus+6 using Tapatalk
  14. skynet

    skynet Well-Known Member Trusted Helper

    No Addon, there are full 4K HEVC HDR rips (60MB per movie).
    Also try this : http://demo-uhd3d.com/categorie.php?tag=hevc
    With XMBC i always have blacks bands and none with Kodi.
    On minix U1 with XMBC, no black bands at all.
  15. David_Cole

    David_Cole Member

    My 4k x265 10bit videos are 40-65 gigs with dts ma or dolby atmos.. I've never seen black bands on anything tho... Really odd.

    Sent from my Nexus+6 using Tapatalk
  16. skynet

    skynet Well-Known Member Trusted Helper

    Download and try with this file :
  17. olive069

    olive069 New Member

    I think i found optimal settings for smooth playback on my U9-H.
    Tested with 1080p, 2160p - 23.976,24,30,60 fps - H264, HEVC - 8bit, 10bit - HDR - NFS, streaming video files.

    Code:
    KODI 17.1
        advancedsettings.xml
    <advancedsettings>
      <cache>
        <buffermode>1</buffermode>
        <memorysize>314572800</memorysize>
        <readbufferfactor>6</readbufferfactor>
      </cache>
    </advancedsettings>
    
        Settings
            Player
                Video : adjust refresh rate OFF, Sync ON
                Processing : HW ON ON
            System
                Display : Refresh rate 60fps
                Audio
                    Output : Fixed
                    Resample : Medium
    
    
    Minix U9-H Firmware 003 :
        Display
            Screen resolution : 4k2k-60hz, autoswitch OFF, deep color ON
            HDR Auto
        Sound
            Dolby DRC OFF, Digital Sounds PCM,
        Playback Settings
            HDMI Self-adaptation OFF, audio 0ms
    skynet likes this.
  18. skynet

    skynet Well-Known Member Trusted Helper

    Thank, I'll try it.

    Sent by my S7 edge
  19. Frederick_99

    Frederick_99 Well-Known Member Trusted Helper

    surely those settings wont do any video framerate refresh at all ?? :unsure:
  20. skynet

    skynet Well-Known Member Trusted Helper

    Yes, not sure too.
    But i'm ready to test anything to have my UDH files played smoothly :unsure: