4k HEVC Playback Problem

[skawun 1]

Hi,

 

I seem to have a problem playing some movies from my Emby server to a Mibox 3. The server is running windows and the latest Emby Server version. The streamer is a Mibox 3 using the Kodi emby add-on. The Mibox goes through a Pioneer VSX1023 receiver. Everything is 1gb ethernet connected and audio passthrough is enabled in Kodi.

 

I can seem to play 4k HEVC ~50GB content on the Mibox. It begins to play and then eventually starts to stutter and lose audio. Stopping the movie and restarting the movie works but then continues down the same stuttering path. This happens anywhere from immediately upon playing all the way to playing for upwards of 10 minutes before stuttering.

 

The funny thing is I can play the same movie on my other MiBox which is only connected to my other TV. I have tried switching the boxes, plugging the box in directly to the TV of the affected system but I cant seem to get it to work properly.

 

Has anyone encountered this problem? I have attached a log from Emby. Any help would be appreciated!!

[Sammy 790]

In the Wiki there's instructions on how to post a problem but you need to post the server and ffpmeg logs to start.

 

Sent from my SM-G930P using Tapatalk

[Guest asrequested]

The MiBox doesn't have an ethernet port. How are you connecting it to the network? If you're using an adapter, try it connected, wireless.

[skawun 1]

Doofus, I will give it a go. I'm using an Amazon Basics gigabit adapter. It seems to work fine on my other box.

 

Sammy, I will check it out and post the proper items.

[Sammy 790]

https://r.tapatalk.com/shareLink?url=https%3A%2F%2Femby%2Emedia%2Fcommunity%2Findex%2Ephp%3F%2Ftopic%2F739-How-to-Report-a-Problem&share_tid=739&share_fid=77624&share_type=t

 

Sent from my SM-G930P using Tapatalk

[Guest asrequested]

One thing to remember is that the MiBox doesn't support many multichannel audio codecs. Pretty much dts and AC3. So make sure you aren't trying to bitstream something it doesn't support,

[skawun 1]

But cant it passthrough the audio to my receiver. The movie also has a 5.q ac3 audio stream but that seems to cause the same issue

[Guest asrequested]

But cant it passthrough the audio to my receiver. The movie also has a 5.q ac3 audio stream but that seems to cause the same issue

If it's basic AC3, yes. EAC3, no. So if you play audio that it doesn't support, the server should transcode it. When you play, is it playing directly?

[skawun 1]

The stream says ac3. It direct plays with both according to the emby dashbard

[Guest asrequested]

Ok so that rules out the audio.

 

That it plays for a bit, then it starts to stutter would suggest bandwidth changes. I'll be interested to see what happens on wireless.

[skawun 1]

Attached is a partial log. Even wifi w/ AC3 auto doesnt seem to work. CPU usage remaings minimal too.

Log.txt

Edited October 10, 2018 by skawun

[Happy2Play 9780]

Attached is a partial log. Even wifi w/ AC3 auto doesnt seem to work. CPU usage remaings minimal too.

 

Did you forget to attach the log?

[skawun 1]

Did you forget to attach the log?

I forgot to actually press the attach button. I revised the post

[Luke 42077]

Sounds like the bitrate might just be too much for the network connection to handle.

[skawun 1]

I tried playing over wireless. Truehd stutters, ac3 worked the first time but subsequent attempted lead to stuttering. Any ideas? It looks like I get approx 130mpbs using Netflix's speed test so internal throughput speeds should be similar if the dongle is the bottleneck. That's still over the 60ish mbps the movie runs at though. I dont understand why it would run fine in my other room but not in my main room. Only difference is the box is hooked up to a receiver which is trueHD ( not atmos) capable

[Sammy 790]

Post FULL logs for both the server and the transcode / ffmpeg logs. It may be a transcoding issue.

[Luke 42077]

I believe it is still going to be network related, but yes that would be helpful. thanks.

[skawun 1]

Ok, I'll post them once I get home. I'm thinking the same since the dashboard says direct play in both instances. I have gigabit wired everywhere. My server is a xeon 1231v3 16gb ram, 6x 4tb WD Red HDDs

, 500gb SSD running windows server 2016 host OS with VM dedicated to emby and another VM for the download and renaming stuff. Host has a dedicated ated GBe line to the switch and the VMs have another.

[Sammy 790]

Ok, I'll post them once I get home. I'm thinking the same since the dashboard says direct play in both instances. I have gigabit wired everywhere. My server is a xeon 1231v3 16gb ram, 6x 4tb WD Red HDDs

, 500gb SSD running windows server 2016 host OS with VM dedicated to emby and another VM for the download and renaming stuff. Host has a dedicated ated GBe line to the switch and the VMs have another.

Well.. that's a pretty healthy setup. May not be a transcoding issue.

 

Sent from my SM-G930P using Tapatalk

[Guest asrequested]

It's not transcoding, so that isn't part of the equation.

[skawun 1]

Here is the log, Starting around 7:15pm. I was getting audio cut outs and video stuttering. around 7:25 I tried restarting the movie again and the playback was unwatchable.

 

Log.txt

[Carlo 4560]

It could be peeks in bitrate as well.  All depends on how it was encoded.

 

Can you post a media info TEXT output of the file?

https://mediaarea.net/en/MediaInfo

That will show averages.

 

Here is something you can try.  From a PC using VLC try this

https://www.howtogeek.com/323497/how-to-check-a-videos-bitrate-in-vlc/

 

Tell us what kind of peeks you are seeing in parts of the video that were giving you a problem.

[Guest asrequested]

Yeah, I've got a few variable bitrate movies that get up to 120 Mb/s

[Carlo 4560]

Yep, and depending on the duration of these high bitrate sections it can cause buffer issues, etc

[skawun 1]

Shit, that's probably what it is. Would that be more of a mibox issue? I'm trying g to find a way to test my thought put from my weaver to the android box? Is there an east way to do this?