v18 Atmos Skipping (High bitrate audio files)
#1
I have my Beatles - Abbey Road Blu-ray Audio ripped and converted to both Matroska Audio (mka) and Matroska Video (mkv) with lossless, untouched Atmos+TrueHD streams.

Both these skip constantly, Kodi (18.4 - LibreElec latest official release on NUC8i3BEH 8GB RAM, HDMI passthrough enabled, Dolby TrueHD AVR enabled) crashes on the mka file:

https://paste.kodi.tv/efoqikuhax.kodi

The MKV plays and crashes as well.

The Atmos track's bitrate is around 14,000kbps so I assume there's some sort of limit in Kodi. (I've not seen any Atmos files with that bitrate previously, mostly around 7000 max. Those play ok but with occasional skip, once every couple of songs for a microsecond).

BTW: I also read a post on www of same issue with Android Kodi (NVidia Shield)

I get same issue regardless of file location (NAS or local SSD).

Here's the a log for the MKV playback:
https://paste.kodi.tv/konunolupo.kodi


I have uploaded a short 30s sample. Kodi devs/support PM me for link.

EDIT: Both these files should just bitstream to my Denon AVR for Atmos decoding, just like all my other Atmos mka files that work correctly
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#2
The the Kodi Crash log for the MKV I see this:

2019-10-01 10:50:30.682 T:140475424659200   DEBUG: CDVDInputStreamFile::SetReadRate - set cache throttle rate to 3123413 bytes per second

Is this cache throttle rate too small for 14,000kbps file?


EDIT: Crash Log (MKV):
https://paste.kodi.tv/utevusetak.kodi
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#3
Same issue using CoreElec latest nightly on Odroid N2.
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#4
I tried playing same files with Kodi 18.4 on my Windows 10 Pro PC via HDMI to my AVR. Kodi crashes.

I created a PR:
https://github.com/xbmc/xbmc/issues/16704
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#5
(2019-10-01, 02:43)HomerJau Wrote: I have my Beatles - Abbey Road Blu-ray Audio ripped and converted to both Matroska Audio (mka) and Matroska Video (mkv) with lossless, untouched Atmos+TrueHD streams.

...

EDIT: Both these files should just bitstream to my Denon AVR for Atmos decoding, just like all my other Atmos mka files that work correctly

FYI:

I'm having what sounds like the same issue.  I'm on an Nvidia Shield running *Plex* into a Denon 4400.  The skipping / dropout pattern is the same every time.

I played it with Kodi: same pattern.

I played it with Kodi and the Plex plugin (why not?): same pattern.

I split the audio part out of the original mkv and tried again all ways: same pattern.

[That 'static' screen takes up ~24000kbps in that mkv (!)...  The audio part is 13500, as you say.]

s
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#6
Glad to see this got reported, was wondering what was going on and am looking forward to a solution.
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#7
For what it's worth this issue with this title seems to occur on more than one hardware platform, software environment and application.

I see this problem on Nvidia Shield TV (2017) with latest Kodi, MrMC, Plex and VLC as well as on PC Windows 10 with latest VLC.

It does play fine on PC Windows 10 with the native Movies & TV and Windows Media Player apps and with Cyberlink PowerDVD as well as the latest MPC-HC and MPC-BE.
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#8
Quick question: does seeking in the file cause Kodi to crash? It might take one or two attempts.

Sam
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#9
(2019-10-01, 02:43)HomerJau Wrote: I have my Beatles - Abbey Road Blu-ray Audio ripped and converted to both Matroska Audio (mka) and Matroska Video (mkv) with lossless, untouched Atmos+TrueHD streams.

Both these skip constantly, Kodi (18.4 - LibreElec latest official release on NUC8i3BEH 8GB RAM, HDMI passthrough enabled, Dolby TrueHD AVR enabled) crashes on the mka file:

https://paste.kodi.tv/efoqikuhax.kodi

The MKV plays and crashes as well.

The Atmos track's bitrate is around 14,000kbps so I assume there's some sort of limit in Kodi. (I've not seen any Atmos files with that bitrate previously, mostly around 7000 max. Those play ok but with occasional skip, once every couple of songs for a microsecond).

BTW: I also read a post on www of same issue with Android Kodi (NVidia Shield)

I get same issue regardless of file location (NAS or local SSD).

Here's the a log for the MKV playback:
https://paste.kodi.tv/konunolupo.kodi


I have uploaded a short 30s sample. Kodi devs/support PM me for link.

EDIT: Both these files should just bitstream to my Denon AVR for Atmos decoding, just like all my other Atmos mka files that work correctly
Hello, I was digging the internet to find this. It's happenning the same to me, I tried to play 3 different rips, mkv or m2ts formats of Abbey Road Blu Ray from two different laptops with VLC, Windows, Cyberlink powerDVD with HDMI passthrough to Denon AVR X-2500H and the Atmos track starts playing with few stutters in the beginning until it blocks. At first I thought it's because of HDMI 1.4 that both my laptops have, instead of HDMI 2.0 but all the other Atmos bluray files plays without problems.
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#10
(2019-10-12, 11:32)alecsbaf Wrote:
(2019-10-01, 02:43)HomerJau Wrote: I have my Beatles - Abbey Road Blu-ray Audio ripped and converted to both Matroska Audio (mka) and Matroska Video (mkv) with lossless, untouched Atmos+TrueHD streams.

Both these skip constantly, Kodi (18.4 - LibreElec latest official release on NUC8i3BEH 8GB RAM, HDMI passthrough enabled, Dolby TrueHD AVR enabled) crashes on the mka file:

https://paste.kodi.tv/efoqikuhax.kodi

The MKV plays and crashes as well.

The Atmos track's bitrate is around 14,000kbps so I assume there's some sort of limit in Kodi. (I've not seen any Atmos files with that bitrate previously, mostly around 7000 max. Those play ok but with occasional skip, once every couple of songs for a microsecond).

BTW: I also read a post on www of same issue with Android Kodi (NVidia Shield)

I get same issue regardless of file location (NAS or local SSD).

Here's the a log for the MKV playback:
https://paste.kodi.tv/konunolupo.kodi


I have uploaded a short 30s sample. Kodi devs/support PM me for link.

EDIT: Both these files should just bitstream to my Denon AVR for Atmos decoding, just like all my other Atmos mka files that work correctly
Hello, I was digging the internet to find this. It's happenning the same to me, I tried to play 3 different rips, mkv or m2ts formats of Abbey Road Blu Ray from two different laptops with VLC, Windows, Cyberlink powerDVD with HDMI passthrough to Denon AVR X-2500H and the Atmos track starts playing with few stutters in the beginning until it blocks. At first I thought it's because of HDMI 1.4 that both my laptops have, instead of HDMI 2.0 but all the other Atmos bluray files plays without problems. 
It's definitely because of lack of HDMI 2.0, I found this on
https://denon.custhelp.com/app/answers/d...and-2.0%3F
"Other features of HDMI 2.0 include the options of .... up to 32 channels of audio, up to 1536 kHz audio (for example 7.1 channels of 192 kHz), up to 4 audio streams, 21:9 aspect ratio, the HE-AAC and DRA audio standards, dynamic auto lip-sync, improved 3D capability, and additional CEC functions."
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#11
(2019-10-12, 11:53)alecsbaf Wrote: It's definitely because of lack of HDMI 2.0, I found this on

Wrong conclusion. I have HDMI 2.0 everywhere and I get the same issues.
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#12
(2019-10-13, 00:00)HomerJau Wrote: Wrong conclusion. I have HDMI 2.0 everywhere and I get the same issues. 
Exactly, same here.  Nvidia Shield TV (2017) to Denon AVR-X3200 and/or Nvidia 1030 to Denon AVR-X3200

Per all the previously described behavior the indication is it appears to be a software issue.
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#13
(2019-10-14, 16:20)dabl Wrote:
(2019-10-13, 00:00)HomerJau Wrote: Wrong conclusion. I have HDMI 2.0 everywhere and I get the same issues. 
Exactly, same here.  Nvidia Shield TV (2017) to Denon AVR-X3200 and/or Nvidia 1030 to Denon AVR-X3200

Per all the previously described behavior the indication is it appears to be a software issue. 
Hello, I found Pot Player which plays without problems Abbey Road Atmos stream.
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#14
(2019-10-17, 19:06)alecsbaf Wrote:
(2019-10-14, 16:20)dabl Wrote:
(2019-10-13, 00:00)HomerJau Wrote: Wrong conclusion. I have HDMI 2.0 everywhere and I get the same issues. 
Exactly, same here.  Nvidia Shield TV (2017) to Denon AVR-X3200 and/or Nvidia 1030 to Denon AVR-X3200

Per all the previously described behavior the indication is it appears to be a software issue.  
Hello, I found PotPlayer which plays without problems Abbey Road Atmos stream. 
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#15
(2019-10-17, 19:06)alecsbaf Wrote: Hello, I found Pot Player which plays without problems Abbey Road Atmos stream.

Sounds like a solution for Windows users (add Potplayer as an external player).

Are there any external players that can be used with LibreElec or CoreElec that don't use ffmpeg?
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