LG Emby App 1.0.51 - Movie stutters when PGSSUB is selected

[butters0_0 1]

Hello, whenever I play a movie with PGSSUB selected, the video frame rate is pretty bad and isn't watchable - subtitles work though. Sometimes it's hard to get the right subtitles with the search feature in the app, so I was wondering if someone can help with this.

I attached the redacted embyserver and transcoding logs - it happens when I play the file called "MEDIA_005".

embyserver.redacted.txt ffmpeg-transcode.redacted.txt

[Luke 43542]

HI, we'll take a look at this. Thanks for reporting.

[butters0_0 1]

Thanks, greatly appreciated!

[NakedPirate 18]

PGSsub is a picture based format. 
Most playback devices cannot overlay images onto the video file, so the video needs to be re-encoded with the subtitle images included. 
Depending on transcoding settings, network speed, and processor performance, the video often stutters or other issues may occur.

So LG and most brands of TV'S tell Emby: "I cannot draw PGS images". Emby then burns the subtitles directly into the video frames.
No such PGS Problems with Shield, Raspberry or Android Sticks.
When it comes to subtitles, audio formats, or HDMI, TVs always lag miles behind any cheap $10 media player.

HTH

Edited October 21 by NakedPirate

[butters0_0 1]

Thanks for the response, I tried to look into the issue but came to a dead end. It appears it's a smiliar issue to this previous thread but was fixed with a prior release of Emby IIRC: 

My Emby server is running an RTX 3060ti 8GB and an AMD Ryzen 7 5800XT, so it should be more than capable in transcoding everything...I think? 

Edited October 21 by butters0_0

[NakedPirate 18]

51 minutes ago, butters0_0 said:

should be more than capable in transcoding everything

Indeed. 
At this point, with the little knowledge I have, I can only speak for my 2025 LG QNED. Even if my server encodes quickly, I always run into issues on my LG as soon as the videos have a high bitrate and PGS. The files run perfectly fine on the server itself and other devices, so network seems unlikely. Maybe I run into the same problem as you...
Sorry, I can't help.... :-(

[Luke 43542]

OK we are looking into it. Thanks.

[JavierPa 7]

Transcoding also arises when there are these types of subtitles.

[Luke 43542]

4 minutes ago, JavierPa said:

Transcoding also arises when there are these types of subtitles.

This is normal because the LG video player does not support them, but say tuned. We have developed our own solution and are exploring the feasibility of using it on LG:

On LG it will probably be limited to more recent model years, but I'm sure some will be able to do it.