Opus files incorrectly transcode part way through tracks after update to Emby for LG 1.0.51

[magickii 0]

After updating to Emby for LG 1.0.51, I started noticing that Opus audio files are always transcoded, even on a local connection, but the transcoding starts the stream offset about ~30s into each track.
So far I have only observed this issue on Emby for LG 1.0.51, all other local clients are able to Direct Play.

I'm aware that LG and Opus have inconsistent support across models.
I cannot confirm if Emby for LG was able to Direct Play these Opus files prior to the app upgrade, but hopefully if it were I would have noticed issues with playback sooner.
The LG TV is an OLED C4 on webOS24 (9.2.2-1806)

I did not immediately see anything in the embyserver.txt log that might indicate an issue, but one of the tracks that had issue started at 2026-09-25 19:03:12.978 and I have attached that track's ffmpeg-transcode log as well.

On the server side, I have observed this behavior first on 4.9.5.0, and it has continued after upgrade to 4.10.0.40

 

embyserver.txt ffmpeg-transcode-69497d66-a0cd-4731-9262-96366405f79b_1.txt

[Abobader 3517]

Hello magickii,

** This is an auto reply **

Please wait for someone from staff support or our members to reply to you.

It's recommended to provide more info, as it explain in this thread:

Thank you.

Emby Team

[Luke 43162]

Hi, there’s no evidence it switched, in fact, we don’t even have a switching mechanism for audio like we do for video.

 However with this update I think we did stop direct playing opus due to all the problems reported with it. @SamES can confirm.