Cannot convert this item. Implementation for video decoder AV1 not found

Server Version#: 1.21.1.3830
Player Version#: 4.47.3

I have noticed that some downloaded YouTube videos do not play on my Plex server/Plex web client and I get a message “Cannot convert this item. Implementation for video decoder AV1 not found.”

That is odd. I can play it on every other device but Plex. Any ideas?

PS. What happened to “attachment” button? It appears I can no longer attach anything.

Plex does not support the AV1 codec. Unknown if/when AV1 will be supported. Plex generally does not release product plans.

You will need to download in another format or convert existing videos to a supported format (H.264 or H.265).

You may wish to vote for the feature suggestion: Add support for av1 coding standard.

Screenshot (415)

Or just drag the file into the message window. It will insert a the cursor location.

Thanks to everyone who replied and the linked to up-vote av1 support. All I can say, it was quite an illuminating read (the AV1 thread, that is).

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.