Only first thumbnail is shown with spawn_first=yes about thumbfast HOT 10 CLOSED

Yeah I was using spawn_first=yes. Switching to spawn_first=no has solved the issue.

That's more of a workaround than a solution. As far as I see, that option is merely an optimization to make the initial thumbnail generation faster - it shouldn't be making things buggy.

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Do you have sample files? Are these YouTube encodes?

I am also curious how the remaining 1% of common codecs fail for you.

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Do you have sample files? Are these YouTube encodes?

Yes they are YouTube encodes I've downloaded with yt-dlp. Webm-vp9s I've encoded myself seem to be working fine but I haven't tested much. Here's an example of the vp9 issues: https://files.catbox.moe/xlfi88.webm

Thumbnailing works for the first two files and gets stuck on the first frame for the last two files. If I tried this again in an hour it could be the other way round. Completely random.

I am also curious how the remaining 1% of common codecs fail for you.

I meant that they only fail 1% of the time. Here's an example with h264 mkv failing: https://files.catbox.moe/t1rjal.webm

Thumbnailing fails the first time (presumably because I hovered over the bar too quickly?) and the second time I wait a second longer and it works fine. This one is less of an issue but still worth investigating.

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Based on those video I think you're using spawn_first=yes. Does it also happen with spawn_first=no?

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Yeah I was using spawn_first=yes. Switching to spawn_first=no has solved the issue. I thought I had tried that already 🤦 . Thanks!

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There is also the problem from #45 that might have something to do with this. I suspect that fixing one will also fix the other one.

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I have the same problem, except that it's on all my files, the first image that I fly over and generate well then nothing more then
I set spawn_first=no

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@2084x @Nosirus Is it fixed for you with the latest updates? Keep in mind you need socat installed if you are on Linux and your mpv version is older than 0.33.0.

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Please reopen if you encounter this again.

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I've just spent the last 10 minutes opening and closing files and the preview only got stuck once. So that's a major improvement.

I'm still experiencing thumbnail glitches on certain files only when spawn_first=yes. There was a separate issue for this that got closed as a duplicate of mine but it looks likes it's been deleted. I believe it was #77. Here's what they look like:

Again, it's far less often now, but still present.

btw apparently I can't reopen the issue if you closed it.

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