Any known issues with Vero V micro-freezing video on H265?

Help and Support Vero V
25

Would still be useful.

26

Now I have a second Vero V set up I’ve been able to try the same movie on the original problem box and the new box, and can confirm that they don’t glitch in the same place (or glitch at all on the new box - so far!).

27

Sod’s law…

28

This sounds exactly what I’d expect from a memory leak. When memory runs low, the memory manager has to recycle some memory, and things stand still for a bit.

29

From the glitchy box:- Debug logs here

I can confirm I observed a freeze of several frames of video at around 51:39 of playback. Audio was unaffected (as per usual). i.e. the same old symptom. There may have been other freezes as I was doing something else at the time, but this one I definitely noted. Also, the symptom remains non-repeatable.

30

Media info:-

eneral
Unique ID : 167743812303322493786549899939204806460 (0x7E324879E6B266898542682E8F77B73C)
Complete name : \NAS1\SharedMedia\My 4K Movies\Dirty Harry (1971)\Dirty Harry 1971.mkv
Format : Matroska
Format version : Version 4
File size : 55.7 GiB
Duration : 1 h 42 min
Overall bit rate mode : Variable
Overall bit rate : 77.8 Mb/s
Frame rate : 23.976 FPS
Movie name : Dirty Harry
Encoded date : 2025-05-01 20:33:12 UTC
Writing application : MakeMKV v1.18.1 win(x64-release)
Writing library : libmakemkv v1.18.1 (1.3.10/1.5.2) win(x64-release)
Cover : Yes
Attachments : cover.jpg

Video
ID : 1
ID in the original source medium : 4113 (0x1011)
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
HDR format : SMPTE ST 2086, HDR10 compatible
Codec ID : V_MPEGH/ISO/HEVC
Duration : 1 h 42 min
Bit rate : 72.1 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 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.362
Stream size : 51.6 GiB (93%)
Language : English
Default : No
Forced : No
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : Display P3
Mastering display luminance : min: 0.0050 cd/m2, max: 4000 cd/m2
Maximum Content Light Level : 3947 cd/m2
Maximum Frame-Average Light Level : 411 cd/m2
Original source medium : Blu-ray

Audio #1
ID : 2
ID in the original source medium : 4352 (0x1100)
Format : MLP FBA 16-ch
Format/Info : Meridian Lossless Packing FBA with 16-channel presentation
Commercial name : Dolby TrueHD with Dolby Atmos
Codec ID : A_TRUEHD
Duration : 1 h 42 min
Bit rate mode : Variable
Bit rate : 3 238 kb/s
Maximum bit rate : 4 746 kb/s
Channel(s) : 8 channels
Channel layout : L R C LFE Ls Rs Lb Rb
Sampling rate : 48.0 kHz
Frame rate : 1 200.000 FPS (40 SPF)
Bit depth : 24 bits
Compression mode : Lossless
Stream size : 2.32 GiB (4%)
Title : HD Surround 7.1
Language : English
Default : Yes
Forced : No
Original source medium : Blu-ray
Number of dynamic objects : 11
Bed channel count : 1 channel
Bed channel configuration : LFE

Audio #2
ID : 3
ID in the original source medium : 4353 (0x1101)
Format : DTS XLL
Format/Info : Digital Theater Systems
Commercial name : DTS-HD Master Audio
Codec ID : A_DTS
Duration : 1 h 42 min
Bit rate mode : Variable
Bit rate : 1 823 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 93.750 FPS (512 SPF)
Bit depth : 24 bits
Compression mode : Lossless
Stream size : 1.31 GiB (2%)
Title : Original stereo
Language : English
Default : No
Forced : No
Original source medium : Blu-ray

Audio #3
ID : 4
ID in the original source medium : 4358 (0x1106)
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Format settings : Dolby Surround
Codec ID : A_AC3
Duration : 1 h 42 min
Bit rate mode : Constant
Bit rate : 192 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Stream size : 141 MiB (0%)
Title : Commentary
Language : English
Service kind : Complete Main
Default : No
Forced : No
Original source medium : Blu-ray
Dialog Normalization : -27 dB
compr : 1.49 dB
dynrng : 1.02 dB
dsurmod : Dolby Surround encoded
mixlevel : 105 dB
roomtyp : Large
ltrtcmixlev : -3.0 dB
ltrtsurmixlev : -3.0 dB
lorocmixlev : -3.0 dB
lorosurmixlev : -3.0 dB
dialnorm_Average : -27 dB
dialnorm_Minimum : -27 dB
dialnorm_Maximum : -27 dB

Audio #4
ID : 5
ID in the original source medium : 4352 (0x1100)
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : A_AC3
Duration : 1 h 42 min
Bit rate mode : Constant
Bit rate : 448 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 : 328 MiB (1%)
Title : Surround 5.1
Language : English
Service kind : Complete Main
Default : No
Forced : No
Original source medium : Blu-ray
Dialog Normalization : -31 dB
compr : 1.94 dB
dynrng : 1.26 dB
cmixlev : -3.0 dB
surmixlev : -3 dB
ltrtcmixlev : -3.0 dB
ltrtsurmixlev : -3.0 dB
lorocmixlev : -3.0 dB
lorosurmixlev : -3.0 dB
dialnorm_Average : -31 dB
dialnorm_Minimum : -31 dB
dialnorm_Maximum : -31 dB

Text
ID : 6
ID in the original source medium : 4768 (0x12A0)
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 1 h 41 min
Bit rate : 28.6 kb/s
Frame rate : 0.322 FPS
Count of elements : 1958
Stream size : 20.7 MiB (0%)
Title : SDH
Language : English
Default : No
Forced : No
Original source medium : Blu-ray

Menu
00:00:00.000 : en:Chapter 01
00:01:50.401 : en:Chapter 02
00:05:42.467 : en:Chapter 03
00:09:40.871 : en:Chapter 04
00:14:46.093 : en:Chapter 05
00:16:52.511 : en:Chapter 06
00:19:57.237 : en:Chapter 07
00:23:37.332 : en:Chapter 08
00:28:36.881 : en:Chapter 09
00:33:06.234 : en:Chapter 10
00:36:40.114 : en:Chapter 11
00:39:39.585 : en:Chapter 12
00:42:20.412 : en:Chapter 13
00:47:08.200 : en:Chapter 14
00:52:47.873 : en:Chapter 15
00:54:50.578 : en:Chapter 16
00:56:39.521 : en:Chapter 17
01:01:32.313 : en:Chapter 18
01:04:43.170 : en:Chapter 19
01:07:28.044 : en:Chapter 20
01:10:21.217 : en:Chapter 21
01:15:41.495 : en:Chapter 22
01:17:37.361 : en:Chapter 23
01:22:10.842 : en:Chapter 24
01:24:44.704 : en:Chapter 25
01:26:14.335 : en:Chapter 26
01:32:05.937 : en:Chapter 27
01:36:18.314 : en:Chapter 28
01:39:23.165 : en:Chapter 29
01:40:46.331 : en:Chapter 30
01:41:40.260 : en:Chapter 31

31

Log from the ‘good’ device. Same video.

https://paste.osmc.tv/todimacodi

32

Hi,

On the vero V with the issue, can you try removing the following from your advancedsettings.xml

     <cachex>
        <buffermode>1</buffermode>
        <memorysize>1000000000</memorysize>
        <readfactor>10.0</readfactor>
    </cachex>

I notice these haven’t been set on the working one. Or you coud try resetting back to defaults in Settings → Services → Caching. Looking at mine here I think they are:-

1
64MB
4x

I seem to recall similar issues before with read factor being set to high, IMHO 4 or 5 should be about right.

Regards Tom.

1 Like
33

The settings were legacy and renamed as ‘cachex’, so I don’t beleive they should have been having any effect? I’ve reset cache to default in the GUI again.

On the new V, I can however confirm that micro stutters are introduced if I set rate 10x and set size to 128MB.

34

Hi,

Has this help on the affected VeroV?

Regards Tom.

35

You shouldn’t need to adjust buffers at all and we have good sane defaults after Kodi v21. I remember spending a lot of time discussing this with @darwindesign and he did a lot of testing as did others.

So settings that worked well on older versions of Kodi won’t be ideal on newer versions

Sam

36

Indeed. Testing on both a Vero 4K and V with a lot of different content, source path types, and settings I could not find anything that produced consistent better results than Kodi defaults. IIRC I also found that most cache setting changes that were allowed in the GUI produced little to no difference in actual playback with the only exceptions being when you went to the extreme in some settings I saw degradation. There were some noticeable changes I think with some settings when running some of the jellyfish videos that were higher bitrate than what you would find in normal real content, but those changes I think I remember coming with a delay in playback start and time shifting. That would be a degradation to real video playback in exchange for better results in non-standard test clips which obviously wouldn’t be a sane default.

2 Likes
37

Please feel free tro correct me if I’m worng, however both boxes were using the default settings I beleive? I think the cache is a red herring as the XML referenced cachex and not cache.

38

Hi,

What are the cache settings showing under:-

Settings → Services → Caching

Regards Tom.

39

What are OSMC defaults for caching?

40

Hi,

Regards Tom.

41

Have confirmed both units set to default caching. Watched a movie through on the problem unit yesterday and still glitched, but only once for the whole movie.