NVidia Shield Android TV Stuttering only by 2 Movies

[mikeB2210 26]

Hi,

 

I have send a log file from the Emby nVidia Shield App.

 

Time: 19:27 pm (gmt +1)

User: mike

 

Problem:

I have remuxed the movie "Black Panther" to mkv format in the same way I have muxed hundreds other movies.

But this Movie stutters from the beginning, when it started on the Shield. I have tried it with no frame switching etc.

 

I doesn´t recognize this by no other Movie that I own.

 

When I start it on my Windows Emby (Desktop PC) it plays without stutter.

 

By the way: When I try to watch Avengers Infinity War its also stuttering :-(

 

Any Ideas?

If you need some more information, let me know.

 

Mike

Edited August 27, 2018 by mikeB2210

[ebr 14905]

Hi.  Can you please define "stutter"?

 

Is it pausing for periods of time or is it just a shudder like a frame-rate/pull-down issue?

 

Edit: Never mind.  App log is full of this:

08-27 19:25:50.158 27900 28090 E AudioTrack: Discontinuity detected [expected 33488000, got 33696000]
08-27 19:25:50.179 27900 27900 D EventLogger: loading [38.97, 33.76, window=0, period=0, true]
08-27 19:25:50.184 27900 27900 D EventLogger: loading [38.97, 33.76, window=0, period=0, false]
08-27 19:25:50.462 27900 28090 E AudioTrack: Discontinuity detected [expected 33904000, got 34112000]
08-27 19:25:50.483 27900 27900 D EventLogger: loading [39.27, 34.11, window=0, period=0, true]
08-27 19:25:50.492 27900 27900 D EventLogger: loading [39.28, 34.11, window=0, period=0, false]
08-27 19:25:50.908 27900 28090 E AudioTrack: Discontinuity detected [expected 34320000, got 34528000]
08-27 19:25:50.927 27900 27900 D EventLogger: loading [39.71, 34.54, window=0, period=0, true]
08-27 19:25:50.930 27900 27900 D EventLogger: loading [39.72, 34.54, window=0, period=0, false]
08-27 19:25:51.078 27900 27900 D EventLogger: loading [39.87, 34.61, window=0, period=0, true]
08-27 19:25:51.088 27900 27900 D EventLogger: loading [39.88, 34.61, window=0, period=0, false]
08-27 19:25:51.358 27900 28090 E AudioTrack: Discontinuity detected [expected 34736000, got 34944000]
08-27 19:25:51.399 27900 27900 D EventLogger: droppedFrames [40.19, 34.96, window=0, period=0, 50]
08-27 19:25:51.399 27900 27900 D EventLogger: loading [40.19, 34.96, window=0, period=0, true]
08-27 19:25:51.399 27900 27900 D EventLogger: loading [40.19, 34.96, window=0, period=0, false]
08-27 19:25:51.809 27900 28090 E AudioTrack: Discontinuity detected [expected 35152000, got 35360000]
08-27 19:25:51.829 27900 27900 D EventLogger: loading [40.62, 35.39, window=0, period=0, true]
08-27 19:25:51.836 27900 27900 D EventLogger: loading [40.62, 35.39, window=0, period=0, false]
08-27 19:25:51.948 27900 27900 D EventLogger: loading [40.74, 35.47, window=0, period=0, true]
08-27 19:25:51.955 27900 27900 D EventLogger: loading [40.74, 35.47, window=0, period=0, false]
08-27 19:25:52.213 27900 28090 E AudioTrack: Discontinuity detected [expected 35568000, got 35776000]

Seems likely an encoding issue...

[Luke 37029]

Can you provide the server and ffmpeg log? thanks.

[mikeB2210 26]

@@Luke

I have attached the log files. Hope these ones are the right ones :-)

 

Let me know if you need something else

 

@@ebr

Its a shutter

 

ffmeg_log.txt Server log.txt

[Luke 37029]

Can you try turning off the subtitles and see if that has any impact? thanks.

[mikeB2210 26]

Can you try turning off the subtitles and see if that has any impact? thanks.

I will try this evening and give you feedback.

[mikeB2210 26]

Hi,

 

today I tried something: The "Black Panther" movie has two audio tracks: Dolby Digital + with 8 channels and Dolby Digital 5.1

So when I switch to the 5.1 Audio file the movie is shown without shutter. Switching back to the 7.1 audio track brings back the shuttering.

 

I have other Movies with 7.1 Audio tracks, where this Problem doesn´t occurs.

 

server log 2.txt

[ebr 14905]

That makes sense as the error reports from the player are related to the audio track and Exo keys its timing off of audio.

[mikeB2210 26]

@@Luke @@ebr

 

any suggestions to solve this problem?

[Luke 37029]

We'll see what @@ebr thinks. Thanks.

[ebr 14905]

I don't have any further information. It looks like a problem with the audio stream to me...

[mikeB2210 26]

I don't have any further information. It looks like a problem with the audio stream to me...

What do you mean with „Problem with the audio file“?

I have the same problem with „The Avenger: Infinity War“

 

Both movies have audiofiles in dolby digital + and have both 7.1 channels.

 

Other movies I own have audifiles in TrueHD 7.1 and runs smoothly.

[ebr 14905]

I mean based on these reported errors, it looks like the audio stream actually has an encoding problem.

 

Perhaps @@Waldonnis has some thoughts...?

[mikeB2210 26]

I don´t know so much about how Emby or the Emby Android TV App works, but isn´t it possible that the app has problems with streams with "Dolby Digital Plus / 7.1"?

I can´t verify it yet, but 2 movies with this soundformat are making trouble.

[ebr 14905]

I don´t know so much about how Emby or the Emby Android TV App works, but isn´t it possible that the app has problems with streams with "Dolby Digital Plus / 7.1"?

I can´t verify it yet, but 2 movies with this soundformat are making trouble.

 

No one else has reported any issues with this audio format and I haven't seen any.

 

It is possible that something in your equipment chain is having trouble with the bandwidth involved with that format though.  You don't have anything with an optical connection, right?

[mikeB2210 26]

No optical connection. Only HDMI connection between Shield — Receiver —TV

[ebr 14905]

Can you provide me with a sample that has this problem in your environment and I can see if it reproduces in mine?

[mikeB2210 26]

Can you provide me with a sample that has this problem in your environment and I can see if it reproduces in mine?

just send a PM to you with a link

[ebr 14905]

Thanks for the samples.  They reproduce and report the same discontinuity errors in the audio stream.  Basically, what that is saying is the audio stream time information has gaps in it.  Since the timing of the video is driven off of the audio stream, you see this in the video that is reproduced.

 

I still suspect a problem with the actual audio stream.  What is the origin of this media and those audio tracks?

[mikeB2210 26]

That are the original Soundtracks. No muxing or something else.

[ebr 14905]

But how were they put into the package they are in now?

[RanmaCanada 339]

I think what EBR is saying are they from your own discs and you used MakeMKV or another program or are they from "scene" rips.  I personally would first recommend trying the external player option, and seeing if these files have an issue with Kodi/SPMC.  It's quite possible that the internal player can not quite handle the stream properly.  

 

Though I know I am stepping on toes here by recommending that option.  Sorry EBR.

Edited September 2, 2018 by RanmaCanada

[mikeB2210 26]

The first time I have muxed the mkv file from my own disk with makemkv. Then I tried also a mux with mkvtoolnix with the same result.

I also tried a scene Rip, but all off them shows the stuttering problem when using the dolby digital plus 7.1 audio track.

Edited September 2, 2018 by mikeB2210

[Carlo 4330]

If you put the movie on a thumb drive and attach this to the Shield TV will it play this way outside of Emby?

[mikeB2210 26]

@@ebr

 

Sorry for my late reply - today I made some testing again and I have installed Kodi with the Emby App. Both movies plays without stuttering with Dolby Digital PLUS 7.1.

Edited September 23, 2018 by mikeB2210