[SOLVED] High Bitrate 4K Movie Unwatchable on Minix U9-H

Tyler Durden · April 18, 2018 at 9:41 PM

wrxtasy EDIT

Solution in Post #31

I really hoped that buying the Minix would sort all my problems but it hasn't (yet!)

I am trying to play 4K movies that are stored on my NAS (Proliant Server with Gigabit Ehternet). Everything is connected by Ethernet Cables so I don't think that can be the trouble.

Please see attached the details of a file that will play for a minute or so, before buffering then, go out of sync, eventually the audio drops out and the image continues to stutter until I either pause and restart or I skip to a new part of the film.

Please help!

Code

General
Unique ID                                : 208120801768337238494365340255850505407 (0x9C929BC140B0713796DEDED418D6A4BF)
Complete name                            : ##############################.mkv
Format                                   : Matroska
Format version                           : Version 4 / Version 2
File size                                : 73.7 GiB
Duration                                 : 2 h 2 min
Overall bit rate                         : 86.2 Mb/s
Movie name                               : ###############
Encoded date                             : UTC 2018-01-02 15:51:04
Writing application                      : mkvmerge v9.7.1 ('Pandemonium') 64bit
Writing library                          : libebml v1.3.4 + libmatroska v1.4.5

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main [email protected]@High
Codec ID                                 : V_MPEGH/ISO/HEVC
Duration                                 : 2 h 2 min
Bit rate                                 : 79.7 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 (Type 2)
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.401
Stream size                              : 68.1 GiB (92%)
Writing library                          : ATEME Titan File 3.7.9 (4.7.9.0)
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.2020
Transfer characteristics                 : SMPTE ST 2084
Matrix coefficients                      : BT.2020 non-constant
Mastering display color primaries        : R: x=0.680000 y=0.320000, G: x=0.265000 y=0.690000, B: x=0.150000 y=0.060000, White point: x=0.312700 y=0.329000
Mastering display luminance              : min: 0.0000 cd/m2, max: 1000.0000 cd/m2
Maximum Content Light Level              : 1000 cd/m2
Maximum Frame-Average Light Level        : 720 cd/m2

Audio #1
ID                                       : 2
Format                                   : DTS
Format/Info                              : Digital Theater Systems
Format profile                           : X / MA / Core
Mode                                     : 16
Format settings, Endianness              : Big
Codec ID                                 : A_DTS
Duration                                 : 2 h 2 min
Bit rate mode                            : Variable / Variable / Constant
Bit rate                                 : 6 290 kb/s / 6 290 kb/s / 1 509 kb/s
Channel(s)                               : Object Based / 8 channels / 6 channels
Channel positions                        : Object Based / Front: L C R, Side: L R, Back: L R, LFE / Front: L C R, Side: L R, LFE
Sampling rate                            :  / 48.0 kHz / 48.0 kHz
Frame rate                               : 93.750 FPS (512 spf)
Bit depth                                :  / 24 bits / 24 bits
Compression mode                         :  / Lossless / Lossy
Stream size                              : 5.38 GiB (7%)
Title                                    : DTS:X 7.1
Language                                 : English
Default                                  : Yes
Forced                                   : No

Display More

Tyler Durden · April 18, 2018 at 9:53 PM

I should have said. I'm running this version - LibreELEC-S912.arm-8.2.4-Subtitles-ff.

movie78 · April 18, 2018 at 10:00 PM

Welcome to my nightmare..

Tyler Durden · April 18, 2018 at 10:03 PM

I'm beginning to think that it might be the hard drives in the NAS that are unable to keep up, but that doesn't seem right.

I've been looking at the Resource monitor while files play and trying to figure out what this issue is.

Tyler Durden · April 18, 2018 at 10:07 PM

Quote from movie78

Welcome to my nightmare..

Have you looked at this thread?

Advance settings for expanding cache not working..

Tyler Durden · April 18, 2018 at 10:15 PM

More information on my set up. All files are shared via NFS rather than SMB.

feerlessleadr · April 18, 2018 at 10:21 PM

attach a log so that the devs can see what is going on.

**wrxtasy** · April 19, 2018 at 12:36 AM

Well I've tested numerous 80+ Mbps UHD Blurays and have none of the problems described.

I'm also using NFS with an iMac file server over Gigabit Ethernet.

A directly connected hard drive should be attached with the problem files to eliminate any LibreELEC playback issues and zero in on possible networking problems.

movie78 · April 19, 2018 at 1:14 AM

Attaching a Hard drive the player is not a solution, most of the people use SMB share, i have not issue playing from other players should be the same with this one.

Is there a way mount the Network Drive ?

There should be a solution to this issue.

frequenzy · April 19, 2018 at 1:26 AM

80mbps bitrate should be fine over a wired network, i don't have any issues using a generic s905x playing 4k material over nfs.

you can try to mount via LE. this is what i have.

mount -t nfs 192.168.1.1:/tmp/mnt/sda1/Movies /storage/videos -o nolock

**wrxtasy** · April 19, 2018 at 1:31 AM

Quote from movie78

Attaching a Hard drive the player is not a solution

Not saying it is - BUT this is about testing and trying to Zero in on what the actual problem is.

The other test should be using a standard kszaq 8.2.2.x S912 release to further zero in on what the problem is.

Tyler Durden · April 19, 2018 at 11:14 AM

I'll temporarily hook up the hard drive directly to see if the issue remains.

This is fairly easy as it's a USB hard drive anyway which it's connected to the Server.

Tim_Taylor · April 19, 2018 at 12:33 PM

Did You check network connection ?

Or run iperf

matt77303 · April 19, 2018 at 12:53 PM

Just to chime in.

I have the minix u9-h box, and never had any problems with play back. UHD or 4K/hdr.

All my movies are stored on a Linux based ( omv ) I’m sharing via Emby server ( nfs shares ) using the Emby kofi addon on the latest Adamg alpha release. All connected via gigabyte lan.

If you want to pm me the film your trying I’ll try it on my setup.

Matt

Tyler Durden · April 19, 2018 at 1:28 PM

Quote from Tim_Taylor

Did You check network connection ?

Or run iperf

I'll have to look into that as I've never heard of that before.

Tim_Taylor · April 19, 2018 at 1:44 PM

I play high bitrate UHD/HEVC videos from netgear and qnap nas using Gb network and OS nfs mount without buffering issue.

No special advanced settings

Tyler Durden · April 19, 2018 at 1:50 PM

Thanks for the information.

Hopefully I'll find the flaw in my set up and fix it.

movie78 · April 19, 2018 at 4:55 PM

Well is sounds like only NFS share is supported with this device,