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Streaming UHD stutters

Discussion in 'Official Firmwares' started by reaklif, Dec 10, 2017.

  1. reaklif

    reaklif Member

    Streaming UHD content is not possible on the Minix U9.

    I have a Zyxell 540 NAS with a gigabit wired ethernet connection to the U9.

    All my UHD content won't play smooth. I Bought this device to watch UHD content.

    Anyone with sugestions how to fix?
  2. mx5

    mx5 New Member

    I have same issue, streaming from computer with a 150mbit connection, it just cant process the data. but same content put onto a external drive and hooked to U9H works flawlessly.
  3. MrBig

    MrBig Active Member

    @reaklif Can you post your settings? I have no problem streaming 4k.
  4. reaklif

    reaklif Member

    TV Samsung UE55K7000
    Amp Onkyo TX-NR646
    Minix U9
    NAS Zyxell 540
    switch Netgear ProSave 8port gigabit switch
    all wired ethernet

    Settings Android:
    switch to default resolution>on
    HDMI self adaption> level 1

    Kodi settings:
    player options >all default
    video options >all default
    screen options> all default

    movie codec info:

    Unique ID : 231123133806480839100760379104910904449 (0xADE0B248D5643308B56427AFFC480C81)
    Complete name Chasing Coral (2017)\Chasing Coral (2017).mkv
    Format : Matroska
    Format version : Version 4 / Version 2
    File size : 28.2 GiB
    Duration : 1 h 29 min
    Overall bit rate : 45.1 Mb/s
    Encoded date : UTC 2017-08-27 05:04:49
    Writing application : mkvmerge v12.0.0 ('Trust / Lust') 64bit
    Writing library : libebml v1.3.4 + libmatroska v1.4.5

    ID : 27
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L5.1
    Format settings : CABAC / 5 Ref Frames
    Format settings, CABAC : Yes
    Format settings, RefFrames : 5 frames
    Codec ID : V_MPEG4/ISO/AVC
    Duration : 1 h 28 min
    Bit rate : 45.1 Mb/s
    Width : 3 840 pixels
    Height : 2 160 pixels
    Display aspect ratio : 16:9
    Frame rate mode : Constant
    Frame rate : 23.976 (24000/1001) FPS
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.227
    Stream size : 27.9 GiB (99%)
    Title : English
    Writing library : x264 core 148 r2744 b97ae06
    Encoding settings : cabac=1 / ref=5 / deblock=1:-3:-3 / analyse=0x3:0x133 / me=umh / subme=10 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=48 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=24 / lookahead_threads=4 / sliced_threads=0 / nr=0 / decimate=0 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=8 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=crf / mbtree=1 / crf=17.0 / qcomp=0.70 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.30 / aq=3:0.70
    Language : English
    Default : Yes
    Forced : No

    ID : 1
    Format : AC-3
    Format/Info : Audio Coding 3
    Codec ID : A_AC3
    Duration : 1 h 29 min
    Bit rate mode : Constant
    Bit rate : 384 kb/s
    Channel(s) : 6 channels
    Channel positions : Front: L C R, Side: L R, LFE
    Sampling rate : 48.0 kHz
    Frame rate : 31.250 FPS (1536 SPF)
    Bit depth : 16 bits
    Compression mode : Lossy
    Stream size : 245 MiB (1%)
    Language : English
    Service kind : Complete Main
    Default : Yes
    Forced : No

    Text #1
    ID : 2
    Format : UTF-8
    Codec ID : S_TEXT/UTF8
    Codec ID/Info : UTF-8 Plain Text
    Duration : 50 min 33 s
    Bit rate : 1 b/s
    Count of elements : 11
    Stream size : 520 Bytes (0%)
    Title : Forced
    Language : English
    Default : Yes
    Forced : Yes
  5. MrBig

    MrBig Active Member

    switch to default resolution>on <- I leave off
    Do you have the latest firmware on your ONKYO? https://www.onkyousa.com/Downloads/firmware.php
    I would also check all you TV settings to make sure they are set correctly.
    Try playing that movie with one of the Andriod players to see if you have the same issue. If so, then it could be an Android, ONKYO or TV setting. If not then it could be a KODI setting.
    sangaz likes this.
  6. reaklif

    reaklif Member

    thnx MrBig

    But no improvement. Checked ethernet speed as well. All is ok. But it cannot buffer fast enough.
    Last edited: Dec 12, 2017
    David_Cole likes this.
  7. wapvi

    wapvi Member

    I have the same problem but looks like it's related to samba as those videos play fine when playing directly from USB. I bought this device specifically for the gbit and hdr but seems like it's useless to me
  8. reaklif

    reaklif Member

    I saw that on Kodi in Settings/Player the "sync playback to display" was off. When i switched it to on the playback of 4K UHD files was ok and free of stuttering. Although skipping and fast forward does not work smooth for those files. You can say that FF an skipping does freeze the playback at all.
  9. skynet

    skynet Moderator Moderator

    Sync playback to display should be off.
    Have you tried NFS instead of SMB ? It's faster.
    Same conf as you but with a Synology. Same switch, i'm able to play this high bitrate clip from my Nas : http://jell.yfish.us/media/jellyfish-180-mbps-4k-uhd-hevc-10bit.mkv
  10. reaklif

    reaklif Member

    With NSF i can't see the shared folders on my Zyxel. Tried everything but i can't give the right permissions tot the shared folders. So i'm stuck with SMB
  11. wrxtasy

    wrxtasy Well-Known Member

    If you want 24p (23.976fps) video to Playback smoothly you need to Select in Kodi Settings:

    Player Setting > Videos > Adjust Display Refresh Rate > Start / Stop

    Otherwise your TV will not switch into it 24p Movie or Cinema Mode.

    Also confirming in Android Settings > Display > Screen Resolution you have a 2K4K60Hz resolution selected ?

    SMB is a bottleneck with all versions of Kodi Krypton - you have to set the Maximum Video Cache buffer too: (Example 4)

    Ultimately NFS Networking is much better for reliable high Bitrate 4K UHD streaming, far less Network overheads.
    sangaz likes this.
  12. skynet

    skynet Moderator Moderator

  13. Robyn

    Robyn Member


    That's very strange, I am also streaming UHD 4K HEVC 10 bits HDR10/Vision/dts-hdma/h265 movies from my Zyxel 542 to latest 65' Samsung via SMB through latest Yamaha AVR UHD 4K capable...very very smoothly, so I guess it is not a U9H issue..
  14. mx5

    mx5 New Member

    I also tried setting my sync playback to display with no results as far as 4K streaming, but I did notice with it set to ON, that for what ever reason it disabled my Passthru option even tho they still showed as all set to on
  15. reaklif

    reaklif Member

    thnx WRXtasy. I'll adjust the settings u suggest.
  16. reaklif

    reaklif Member

    Thnx SkyNet.

    My Zyxel NAS540 does not give an option to share the files with NFS. When i switch NFS on in the NAS i can see the NAS in the Kodi NFS file section but i cannot go any further than my NFS main share. That means i can't go deeper in the NFS to select my movies folder. Guess the NAS540 is the cheap version.
  17. skynet

    skynet Moderator Moderator

    It's about account permissions. Try to let all accounts to access NFS shares (Nas side). I'm sure it will work ;)
  18. reaklif

    reaklif Member

    It does not work on a Zyxel NAS540 I can't assign my media map to NFS.
  19. skynet

    skynet Moderator Moderator

  20. reaklif

    reaklif Member