AV1 issue in Windows 11 browsers

[MrBuggie 2]

Hi, I’m having an odd issue. My server is a Raspberry Pi 4, so any transcoding immediately causes buffering. And every time a try to play a file using an AV1 codec in Firefox or Chrome, it starts transcoding. I rarely watch content in my browser on my PC, so it hasn’t been a massive issue, just an annoyance from time to time. Everything works fine in the phone and TV apps. However, I was just trying to watch some content in the browser with dual audio. When I play it with original Japanese language (OPUS), it plays fine. When I select the English audio (AAC), it starts transcoding the video. Not the audio, that shows as direct play. 

I tried turning off all transcoding for the user, and it will show that I’ve selected English, but will only play the Japanese audio. If I allow only audio transcoding, it plays in Japanese, but English gives the error:
No compatible streams are currently available. Please try again later or contact your system administrator for details.
Playback failure: servererror

If I also allow changing of container formats, it will only play the audio in English, no picture. 

 

My thanks to anyone that can help.

embyserver.txt

[Luke 43336]

Quote

When I select the English audio (AAC), it starts transcoding the video

hi, this is because the browser video player can't select a secondary audio track, so we have to repackage the video with only the track that you've selected.

this results in a full video transcode because the format that we're doing this with currently can't hold av1.

[Luke 43336]

Quote

I tried turning off all transcoding for the user, and it will show that I’ve selected English, but will only play the Japanese audio.

That's also because the browser video player cannot select a secondary track.

[MrBuggie 2]

2 minutes ago, Luke said:

 the format that we're doing this with currently can't hold av1.

Thanks for the reply. So there’s no solution? I have to wait for an update to the format used in the browser player? Is that likely to happen in the near future?

So if I understand what’s happening, I can only play AV1 files if they have a single audio track (or I play the default one)?

[Neminem 1950]

3 hours ago, MrBuggie said:

So if I understand what’s happening, I can only play AV1 files if they have a single audio track (or I play the default one)?

Yes. 

But you can use MKVtoolnix to make your preferred audio track, first track.