What "Video Resolution Not Supported" reason for transcoding means?

[cochize1 55]

I managed to grab logs while just one remote user was watching an episode on his iPhone using latest (I think) Emby for iOS app. Video is HEVC 1920x960 and was transcoded to 1280x640. Could somebody explain to my why is this happening? Can't tell if the users settings were set to Auto playback but I have seen this "video resolution not supported" lately quite often among other users as well and was wondering what is the reason. 

My set up is Emby server on my NUC 8 with i78809G CPU and AMD Radeon RX Vega M GH behind revers proxy and files on my Synology NAS and remote access to for my users via myserver.com domain. All settings set to Auto and default on my side with no cap on bitrate for remote connections.

Attached are the logs.

Thank in advance for taking a look into this.

ffmpeg-transcode-b5f6f40a-c3f4-41f3-bd7f-da04a200afbe_1.txt ffmpeg-transcode-f496cadf-b13d-4bc1-afb8-32f439dd7453_1.txt ffmpeg-transcode-0a6e0142-3e49-406d-a1a9-0f36e6a60acb_1.txt ffmpeg-transcode-836e7036-e3e7-4af6-a39e-3494da0875c3_1.txt ffmpeg-transcode-b8c313c4-73be-47ad-b87a-f082421aa089_1.txt embyserver.txt

[Luke 42079]

The video resolution exceeds the chosen quality setting.

[Happy2Play 9780]

What is the client playback set to?

 

VideoBitrate=2680000&AudioBitrate=320000&MaxWidth=1280


2024-05-15 14:35:20.237 Info App: Profile: VideoCodecProfile, DirectPlay=false. Reason=Unnamed.Width Condition: LessThanEqual. ConditionValue: 1280. IsRequired: False. Path: xxx.mkv

 

[cochize1 55]

@Luke@Happy2Play

So the reason for transcoding is client's changed settings (safe to assume he changed them from Auto to something else), right? It is my remote user, I might ask if you're interested.

[Luke 42079]

10 minutes ago, cochize1 said:

@Luke@Happy2Play

So the reason for transcoding is client's changed settings (safe to assume he changed them from Auto to something else), right? It is my remote user, I might ask if you're interested.

Most likely. We need to improve that help text. There are two reasons for video resolution, one being device support, the other being due to the quality setting.

[cochize1 55]

Well it's a new iPhone with latest Emby app so, I'd assume user's quality settings. Thanks for clearing that up.