1080p MKV h.264 No Sound/Stuttering Video

apb0703 · 19 August 2015 22:51

Everytime I try to play a 1080p Movie in MKV format it will lose sound and the video stutters, almost like it is playing in slow motion. When I first start the movie it seems to work fine for about 5-10 seconds then the sound cuts and the stuttering starts. This happens on all 1080p movies.

I am able to play TV shows in MKV format just fine and they are usually 720p.

This only happens on the Vero. When I play them on my computer or my Pivos XIOS DS the file plays fine.

Does anyone have some suggestions on what I can do to fix this?

sam_nazarko · 19 August 2015 22:52

Are you on the latest version?
Can you upload a debug log?
Can you upload ‘MediaInfo’ output of a problematic file

Thanks

Sam

apb0703 · 19 August 2015 23:22

I am on the latest version.
Here is the link to the debug log: http://paste.osmc.io/jiqidenite
General
Unique ID : 208357811460086636304204481828897852115 (0x9CC0413C21E2B6A1A85D505F68BA8AD3)
Complete name : \freenas\Windows Files\Videos\HDMovies\X-Men Days of Future Past The Rogue Cut\X-Men.Days.of.Future.Past.2014.The.Rogue.Cut.BluRay.Remux.1080p.AVC.DTS.HD.MA.7.1-BMF\X-Men.Days.of.Future.Past.2014.The.Rogue.Cut.BluRay.Remux.1080p.AVC.DTS.HD.MA.7.1-BMF.mkv
Format : Matroska
Format version : Version 4 / Version 2
File size : 31.1 GiB
Duration : 2h 28mn
Overall bit rate mode : Variable
Overall bit rate : 29.9 Mbps
Encoded date : UTC 2015-07-10 11:03:38
Writing application : mkvmerge v8.1.0 (‘Psychedelic Postcard’) 64bit
Writing library : libebml v1.3.1 + libmatroska v1.4.2

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 2h 28mn
Bit rate mode : Variable
Maximum bit rate : 35.5 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Title : MPEG-4 AVC Video / 24435 kbps / 1080p / 23.976 fps / 16:9 / High Profile 4.1
Language : English
Default : Yes
Forced : No

Audio #1
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Format profile : MA / Core
Mode : 16
Format settings, Endianness : Big
Codec ID : A_DTS
Duration : 2h 28mn
Bit rate mode : Variable
Bit rate : Unknown / 1 509 Kbps
Channel(s) : 8 channels / 6 channels
Channel positions : Front: L C R, Side: L R, Back: L R, LFE / Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Compression mode : Lossless / Lossy
Title : DTS-HD Master Audio / 7.1 / 48 kHz / 5389 kbps / 24-bit
Language : English
Default : Yes
Forced : No

Audio #2
ID : 3
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : A_AC3
Duration : 2h 28mn
Bit rate mode : Constant
Bit rate : 224 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 238 MiB (1%)
Title : Commentary by Director Bryan Singer and Composer/Film Editor John Ottman / Dolby Digital Audio / 2.0 / 48 kHz / 224 kbps
Language : English
Default : No
Forced : No

Text #1
ID : 4
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Language : English
Default : No
Forced : No

Text #2
ID : 5
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Language : Danish
Default : No
Forced : No

Text #3
ID : 6
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Title : Commentary
Language : Danish
Default : No
Forced : No

Text #4
ID : 7
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Language : Finnish
Default : No
Forced : No

Text #5
ID : 8
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Title : Commentary
Language : Finnish
Default : No
Forced : No

Text #6
ID : 9
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Language : Italian
Default : No
Forced : No

Text #7
ID : 10
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Title : Commentary
Language : Italian
Default : No
Forced : No

Text #8
ID : 11
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Language : Norwegian
Default : No
Forced : No

Text #9
ID : 12
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Title : Commentary
Language : Norwegian
Default : No
Forced : No

Text #10
ID : 13
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Language : Swedish
Default : No
Forced : No

Text #11
ID : 14
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Title : Commentary
Language : Swedish
Default : No
Forced : No

Menu
00:00:00.000 : en:Chapter 1
00:03:33.338 : en:Chapter 2
00:08:04.734 : en:Chapter 3
00:10:34.217 : en:Chapter 4
00:15:11.410 : en:Chapter 5
00:18:44.248 : en:Chapter 6
00:22:43.529 : en:Chapter 7
00:24:38.769 : en:Chapter 8
00:29:05.619 : en:Chapter 9
00:33:03.440 : en:Chapter 10
00:37:11.896 : en:Chapter 11
00:38:49.827 : en:Chapter 12
00:41:06.923 : en:Chapter 13
00:43:50.336 : en:Chapter 14
00:50:05.377 : en:Chapter 15
00:52:07.082 : en:Chapter 16
00:55:11.391 : en:Chapter 17
00:57:56.348 : en:Chapter 18
01:01:04.661 : en:Chapter 19
01:04:01.421 : en:Chapter 20
01:06:39.829 : en:Chapter 21
01:10:22.802 : en:Chapter 22
01:13:00.459 : en:Chapter 23
01:16:28.334 : en:Chapter 24
01:18:48.724 : en:Chapter 25
01:20:44.590 : en:Chapter 26
01:22:46.962 : en:Chapter 27
01:28:07.574 : en:Chapter 28
01:31:19.057 : en:Chapter 29
01:33:50.958 : en:Chapter 30
01:39:22.373 : en:Chapter 31
01:42:10.291 : en:Chapter 32
01:44:32.016 : en:Chapter 33
01:49:13.547 : en:Chapter 34
01:51:00.862 : en:Chapter 35
01:54:54.304 : en:Chapter 36
01:59:15.940 : en:Chapter 37
02:02:13.743 : en:Chapter 38
02:04:30.504 : en:Chapter 39
02:08:16.230 : en:Chapter 40
02:13:27.583 : en:Chapter 41
02:16:57.250 : en:Chapter 42
02:19:19.809 : en:Chapter 43
02:27:34.011 : en:Chapter 44

apb0703 · 20 August 2015 01:10

I was reading through the help forum for Vero and came across this post: Vero network speed - choppy playback - #7 by henrik

I ran this command sudo ethtool -s eth0 speed 100 duplex full autoneg on and all the movies I tested worked great.

So I am guessing the issues described in that thread was my problem.

So to ensure the Vero always runs 100 duplex I just need to add the following to etc/rc.local?

“sleep 10
sudo ethtool -s eth0 speed 100 duplex full autoneg on”

Correct?

sam_nazarko · 20 August 2015 02:15

That will work. We will look at providing this as an option in My OSMC in the future.

Sam

DBMandrake · 20 August 2015 08:43

No need to use sudo as rc.local already runs as root, and make sure you leave the exit 0 line at the end.

The video you posted has a bitrate of 35Mbps which is fairly high (possibly a full rate blu-ray rip) so any network problems would cause it to stutter.

What kind of switch are you using ? The issue you’re seeing happens when the switch does not support or does not have enabled Ethernet flow control, which if your server is also quite fast will send data in bursts faster than the Vero can process it. (> 470Mbps) If you can enable flow control on the switch or have another switch sitting around that you could try that is the preferred solution, otherwise dropping back to 100Mbit as you already have is a usable workaround.

Obviously this limits your maximum network throughput to 100Mbps - with Gigabit still enabled and a flow control capable switch you’ll see a maximum throughput of around 470Mbps. (On a network speed test such as iperf)