Samsung App & Buffering Problem

[Bob1969 15]

I am using version 2.2.8 via the app store, this is to avoid being inconvenienced when using the usb instalation. My windows is not using any resources at all, my windows search is disabled, no scans are taking place, cpu temp is cool and so on.

I understand that Samsung tvs can have buffering issues too so that's something to keep in mind. I reset my tv by holding down the remote power button and restarting the tv. I also unplug the tv and modem for a few minutes too. My tv and pc are connected via 5e network cables. 

This concert movie froze multiple times today,  i have attached the log file, Leonard Cohen in London, it froze at 19.04. I scanned the video with mkvtoolnix and there were no errors. 

I played this video for 1 hour via the tv source menu and selecting the Emby server. It played just fine and it proves the app is causing me a problem here.

 

 

20-06-26 embyserver.txt

[FrostByte 5495]

Log mentions transcoding, were there any transcode logs?

Edited Saturday at 07:19 PM by FrostByte

[titan18rulit 1]

Similar issue some users unable to start stream from Samsung TVs.
 

embyserver_redacted_for_forum.txt

[Bob1969 15]

25 minutes ago, FrostByte said:

Log mentions transcoding, were there any transcode logs?

thanks for your reply, is that the same as the ffmpeg log? attached?

ffmpeg-remux-eaa6ca10-c9d5-4e84-936c-de04eba7d577_1.txt

[FrostByte 5495]

39 minutes ago, Bob1969 said:

thanks for your reply, is that the same as the ffmpeg log? attached?

ffmpeg-remux-eaa6ca10-c9d5-4e84-936c-de04eba7d577_1.txt 385.8 kB · 0 downloads

Does it still have the same buffering problem if you preselect the AC3 audio track before clicking Play?

[Bob1969 15]

2 hours ago, FrostByte said:

Does it still have the same buffering problem if you preselect the AC3 audio track before clicking Play?

Thanks for your reply. It does play fine when i select the ac3 audio track, i just played it for 1 continuous hour. I seen an old post on here where the user also had issues too with FLAC stereo transcoding. My tv supports flac stereo too. I found another video with a Flac stereo audio track and it is also being transcoded.

Do you know why the FLAC stereo is being transcoded and why it is causing my video to buffer and pause.

 

edit - it direct plays FLAC stereo to my android phone

Edited Saturday at 11:26 PM by Bob1969

[FrostByte 5495]

FLAC as an audio music file is supported, but FLAC within a video container such as MKV isn't supported on any Samsung TV I'm aware of.

At the back of your user's manual, you should see a chart like in the link below.

https://developer.samsung.com/smarttv/develop/specifications/media-specifications/2021-tv-video-specifications.html

That's the matrix Emby uses in the app and can be different depending on the year, but pretty much it's been the same every year for a while.

[FrostByte 5495]

And ya, Samsung TVs are horrendous at streaming transcoded files and buffering.  I always keep a compatible audio file within my videos if they have TrueHD or DTS.  PCM 2.0 is about the only lossless audio format you can have without transcoding.  That and PGS subtitles are bad too.

[FrostByte 5495]

Oh, and if you want to test it out just disable transcoding on the server for your user.  Your TV should start spitting out Tizen error messages.  

Edited Saturday at 11:36 PM by FrostByte

[Bob1969 15]

15 minutes ago, FrostByte said:

FLAC as an audio music file is supported, but FLAC within a video container such as MKV isn't supported on any Samsung TV I'm aware of.

At the back of your user's manual, you should see a chart like in the link below.

https://developer.samsung.com/smarttv/develop/specifications/media-specifications/2021-tv-video-specifications.html

That's the matrix Emby uses in the app and can be different depending on the year, but pretty much it's been the same every year for a while.

Many thanks for your reply. At the back of my manual in the supported video containers, it does not list FLAC as a supported codec.

The second video has now buffered and paused, why is this happening when its meant to be transcoded into another format?

[Bob1969 15]

I did try disabling audio transcoding, there was no audio thats all.

[FrostByte 5495]

1 minute ago, Bob1969 said:

I did try disabling audio transcoding, there was no audio thats all.

Ahh, okay.  Mine usually spits out a message something about an invalid codec or something.

[FrostByte 5495]

Oh, and also your compatible audio track is going to almost always be better than what Emby transcodes to anyhow.  I think Emby transcodes to AC3 with a max 384 kbps and 5.1 or less channels.

[Bob1969 15]

18 hours ago, FrostByte said:

Oh, and also your compatible audio track is going to almost always be better than what Emby transcodes to anyhow.  I think Emby transcodes to AC3 with a max 384 kbps and 5.1 or less channels.

thanks for the reply matey. Do you think its the transcoded audio thats causing the buffering and pausing?

[FrostByte 5495]

It's the transcoding process on Tizen, converting PGS subtitles will also do it.  The higher the bitrate your files the worse it seems to get also.  Every time someone mentions buffering, the first thing I look for is transcoding of unsupported codecs.  Having more than 30 subtitles in a file is another common cause of buffering.

All my remuxes have a compatible audio and subtitle track as backup. Though most of the time I just use my Shield which supports lossless audio and PGS when needed.

[Bob1969 15]

21 hours ago, FrostByte said:

It's the transcoding process on Tizen, converting PGS subtitles will also do it.  The higher the bitrate your files the worse it seems to get also.  Every time someone mentions buffering, the first thing I look for is transcoding of unsupported codecs.  Having more than 30 subtitles in a file is another common cause of buffering.

All my remuxes have a compatible audio and subtitle track as backup. Though most of the time I just use my Shield which supports lossless audio and PGS when needed.

Many thanks for the great info, its something to bare in mine if i have buffering problems.