Stutter in playback Stranger Things S03E06 - 2160p h265

[Rouzax]

So far anything that I’ve played has played without any problems on my Vero 4K, many UHD HDR Blurays without any stutters.
Yesterday I watched “Stranger Things - S03E06 - [2160p WEB h265][DEFLATE].mkv” and at 35:58 there is a slow zoom out of static on an old CRT, probably the bitrate here is really high and the Vero 4K stuttered and could not keep up.
Wondered if anybody else had something similar and if I should start tweaking the cache?

Vero is connected with a 1 Gbit network to a Windows 2019 Fileserver that hosts the files.

General
Unique ID                      : 283059423293875018354343490577590092092 (0xD4F3430E414E49CAA786552BF77B813C)
Complete name                  : Stranger Things - S03E06 - [2160p WEB h265][DEFLATE].mkv
Format                         : Matroska
Format version                 : Version 4
File size                      : 6.60 GiB
Duration                       : 59 min 38 s
Overall bit rate               : 15.8 Mb/s
Encoded date                   : UTC 2019-08-21 09:33:01
Writing application            : mkvmerge v19.0.0 ('Brave Captain') 64-bit
Writing library                : libebml v1.3.5 + libmatroska v1.4.8

Video
ID                             : 1
Format                         : HEVC
Format/Info                    : High Efficiency Video Coding
Format profile                 : Main 10@L5@Main
Codec ID                       : V_MPEGH/ISO/HEVC
Duration                       : 59 min 38 s
Bit rate                       : 15.2 Mb/s
Width                          : 3 840 pixels
Height                         : 1 920 pixels
Original 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                      : 10 bits
Bits/(Pixel*Frame)             : 0.086
Stream size                    : 6.33 GiB (96%)
Language                       : English
Default                        : Yes
Forced                         : No
Color range                    : Limited
Color primaries                : BT.709
Transfer characteristics       : BT.709
Matrix coefficients            : BT.709

Audio
ID                             : 2
Format                         : E-AC-3
Format/Info                    : Enhanced AC-3
Commercial name                : Dolby Digital Plus
Codec ID                       : A_EAC3
Duration                       : 59 min 38 s
Bit rate mode                  : Constant
Bit rate                       : 640 kb/s
Channel(s)                     : 6 channels
Channel layout                 : L R C LFE Ls Rs
Sampling rate                  : 48.0 kHz
Frame rate                     : 31.250 FPS (1536 SPF)
Compression mode               : Lossy
Stream size                    : 273 MiB (4%)
Language                       : English
Service kind                   : Complete Main
Default                        : Yes
Forced                         : No

Text #1
ID                             : 3
Format                         : UTF-8
Codec ID                       : S_TEXT/UTF8
Codec ID/Info                  : UTF-8 Plain Text
Duration                       : 36 min 47 s
Bit rate                       : 1 b/s
Count of elements              : 16
Stream size                    : 439 Bytes (0%)
Title                          : English (Forced)
Language                       : English
Default                        : Yes
Forced                         : Yes

Text #2
ID                             : 4
Format                         : UTF-8
Codec ID                       : S_TEXT/UTF8
Codec ID/Info                  : UTF-8 Plain Text
Duration                       : 54 min 46 s
Bit rate                       : 58 b/s
Count of elements              : 836
Stream size                    : 23.4 KiB (0%)
Title                          : English
Language                       : English
Default                        : No
Forced                         : No

Text #3
ID                             : 5
Format                         : UTF-8
Codec ID                       : S_TEXT/UTF8
Codec ID/Info                  : UTF-8 Plain Text
Duration                       : 57 min 58 s
Bit rate                       : 73 b/s
Count of elements              : 1133
Stream size                    : 31.1 KiB (0%)
Title                          : English (SDH)
Language                       : English
Default                        : No
Forced                         : No

[darwindesign]

I suspect that the artifact your seeing is in the file itself which is actually running a very low bitrate. If you wanted to post of a log we could look and see if there is something going on (you would turn on debug logging, reboot twice, play that scene, then upload full logs) but it would most likely be a waste of everyone’s time. As far as the cache goes it is already set as large as it can sensibly be on the Vero.

[sam_nazarko]

The static image could indeed cause a very high bitrate. The famous HBO static used to cause problems on the Raspberry Pi some years ago.

How are your shares mounted? SMB? You could look at an OS based mount to improve throughput.

Sam

[sam_nazarko]

I think OP is saying there’s an image of static in the video.

[Rouzax]

It is indeed a slow zoom out of static

Shares are mounted via SMB, and I need that since I have a shared SQL and multiple KODIs looking at the same share.

[sam_nazarko]

Try playing back the file from some local storage first.

[Rouzax]

Would a USB 3 key be fast enough?

[darwindesign]

Unless it is of an unusually poor quality, then yes. That file does not have a particularly high bitrate.

[Rouzax]

Will give it a try, unfortunately I won’t be home for the rest of the week so it might take me a while.