Your platform doesn't suppport hardware accelerated AV1 decoding

[hiven]

Describe the bug
A clear and concise description of what the bug is.

I thought AVI1 was supported in V12 onwards however when trying to generate thumbnails from a file that is encoded in AV1:

• [mov,mp4,m4a,3gp,3g2,mj2 @ 0xdea130] stream 0, timescale not set
• [av1 @ 0xdea580] Your platform doesn't suppport hardware accelerated AV1 decoding.
• [av1 @ 0xdea580] Failed to get pixel format.
• [av1 @ 0xdea580] Missing Sequence Header.

To Reproduce
Please provide a GitHub link or code snippet.
const thumbnailArgs = [
'-i', inputFile,
'-vf', fps=1/${interval},scale=400:-1:flags=bilinear,
thumbnailFile,
];
const thumbnailErr = await ffmpeg.exec(thumbnailArgs);

Expected behavior
A clear and concise description of what you expected to happen.
I would expect it to be able to generate thumbnails from AVI

Screenshots
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Desktop (please complete the following information):

• OS: [e.g. iOS] Chrome, Safari

Additional context
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