No compatible streams

[jtgdemby 0]

Fresh install of Emby on Arch Linux
extra/emby-server 4.9.3.0-1

Library set up without complaints.

I can view the library with posters and do everything except play.
Anything I play gets the error: "Playback Error
    No compatible streams are currently available. Please try again later or contact your system administrator for details."

I do see errors in the log regarding ffmpeg.
I have no need or desire to have anything transcoded by Emby, however the ffmpeg executable is present with execute permissions.
I have it disabled in the settings (I think) so I would just like to know what setting I need to change so I don't have this error.

I see the startup script does reference ffmpeg:

  exec dotnet /usr/lib/emby-server/EmbyServer.dll \
    -programdata $PROGRAM_DATA \
    -ffdetect $FFDETECT \
    -ffmpeg $FFMPEG \
    -ffprobe $FFPROBE \
    -restartexitcode 3

If I modify that and remove the 3 -ff* lines, Emby does not work.

All my movies have already been transcoded with ffmpeg as HEVC in an mkv container which is stated as supported, with Opus audio.
Everything plays fine in mpv.
Everything plays fine in a browser.
Everything plays fine in VLC in my ONN(Chromecast),
although I am not yet trying to use the ONN and just trying to play through the web interface for now.
 

embyserver.txt

[Abobader 3485]

Hello jtgdemby,

** 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

[jtgdemby 0]

Hmmm... strange. I thought viewing through the web page would be easier and thought I should do that before I attempted to view on the TV but surprise!
It works on my ONN/TV. I can view there but not on my computer.

Of course I will be watching on the TV but I'd still be curious what went wrong and it would be nice to fix this.

[Luke 42185]

Hi, we’ll take a look at this. Thanks

[Nestar 15]

Running into the same here. It's opus audio tracks specifically and only browser playback that's broken. Any other device or using the secondary audio tracks seems to either play-back properly. Browser refuses to start.

Interestingly enough, I discovered this when I took a previously DTS audio track file, and replaced it with an identical file but with the audio track replaced with opus. That file played just fine as long as emby thought the track was DTS and tried to transcode it. But as soon as I re-scanned the library and it updated the specs of the file, it stopped working.

Log attached.

Looking over it, it seems like the use of the opus track is triggering a video transcode for no reason and that's what actually is failing (this file can direct play on browser if any other audio track is selected).


edit - I also discovered that if an opus track is used on any other device and quality settings force it to do a video transcode as well, that hardware transcode will fail and fall back to software at a massive performance penalty. Is there some reason it can't use quicksync for video and software for audio at the same time?

ffmpeg-transcode-2f5addb7-4f1d-446b-999a-e9550a527464_1.txt

Edited 43 minutes ago by Nestar
Adding logs