AV1 support

[RinCat]

Steps to reproduce the problem

1. Upload a AV1 video file
2. Try to play the uploaded video

Expected behaviour

The video file should be pass-through or convert to mp4

Actual behaviour

The video become audio only

Detailed description

No response

Specifications

Mastodon v3.5.3

[leo60228]

Does your browser support AV1? Are you uploading it as .mp4 or .webm?

[RinCat]

Does your browser support AV1? Are you uploading it as .mp4 or .webm?

Yes, my browser support it, and most browsers support it https://caniuse.com/?search=AV1

The video uploaded as webm. The host ffmpeg enabled AV1 support.

BTW, the file become mp3, not a black screen video.

[leo60228]

Okay, I can reproduce this with a .webm, but not with a .mp4 (which works fine).

[leo60228]

This seems to be due to marcel not recognizing codecs other than VP8/VP9 as video/webm, leading to it falling back to audio/webm. This should possibly be reported there.

[RinCat]

OK, I will report to marcel.