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Thumbnail Image Extraction not working consistently


Erik
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Hello,

In the last couple weeks I have noticed that the thumbnails creation are not available for content consistently... I turned on debug logs and send a log to @Luke and @ebr from a fresh restart of Emby then:

1) Added a new file to a folder (.mp4) and ran the library scan task then the thumbnails task (.bif created ok)

Note: other files are present in multiple folders/libraries that are missing a .bif file

2) Ran thumbnail task again, finishes in 0 seconds (nothing created)

3) Removed a TV show, scanned the library to clear it, added the show back, scanned the library to add it back in

4) Ran the thumbnail task again and now the thumbnail is created for that specific episode, but the 4 previous episodes that are present have thumbnails created.

5) Deleted a previously created .bif from a TV Show (happened to be a .mp4 file), ran library scan task and then thumbnails creation task and no creation was attempted, finished in 0 seconds.

 

Emby seems to not be scanning for missing thumbnails correctly unless I remove and add the media again. Has something changed? For example: I was previously able to just delete any .bif file and then run the task to have it re-created, now it seems to be ignored.

 

Thanks,

Erik

Edited by Erik
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Quote

 

Emby seems to not be scanning for missing thumbnails correctly unless I remove and add the media again. Has something changed? For example: I was previously able to just delete any .bif file and then run the task to have it re-created, now it seems to be ignored.

HI, nothing has changed. Can we please look at a specific example? Thanks.

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Posted (edited)

Sure, @Luke

I have “Americas Got Talent” recording weekly via a HDHomeRun (all through Emby).

None of the episodes from the last couple week have thumbnail files created.

I tried manually scanning the library and manually running the thumbnails task with no result.

I removed S17E05 from the folder and did a library scan (deleted all the other associated files for that episode). I then put it back into the same folder and did another library scan followed by a thumbnails task…now a .bif was created, but the other episodes in the same folder are there still with no .bif file.

I used the 3 dot on the series to refresh the metadata (selected replace all and replace images) which after that was done I manually executed the thumbnail task and still no additional .bif files created for all the missing ones.

——

I also tested this by just deleting the .bif file for a movie in a different folder then scanned the library and ran the thumbnail task and it completes in 0 seconds and doesn’t try to recreate the thumbnail file.

——

if I add a new video file to a library and do a library scan then thumbnail task it does create it as expected…

——

it feels like files are being ignored or flagged not to be included for some reason. Anyways, if you need more specific or a step by step or anything let me know.

Edited by Erik
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@Luke a parallel thread for the same issue: 

 

It seems that doing a manual refresh of all the metadata and then running the thumbnail task does then work, so hopefully that helps get to the root of the problem.

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mohoelx

Chiming in ... noticed the same thing. My HDHomerun device is a new-ish addition to my environment, and tonight we sat down to watch a series recorded there (NCIS LA) and had no thumbnails. Checking, I too could run the thumbnail extract in 0 seconds, and have no joy. Then I did a manual refresh of all the metadata as suggested above, and re-ran the thumbnail extract. Still 0 seconds, but sampling the episode we had just finished, it now has thumbnails. Weird, but at least there's a work-around.

 

 

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Yea it looks like it's not happening right away after the recording and we're looking into that. Thanks.

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  • 5 weeks later...

Problem is still there in Version 4.7.6.0. After a live recording, emby won't create a .bif file. Sometimes it does, but it's 1 out of maybe 20. Regardless of live checking or waiting till the scheduled task kicks on.

If I start the thumbnail extraction manually, it takes 0 seconds to finish.

Only solution is to set "replace metadata" manually for the video and kick off again manually the thumbnail extraction. After these steps before the thumbnail extraction works as it should every time.

 

Hopefully @Luke can solve this. I don't like to do so much manually ^^

 

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On 8/4/2022 at 10:50 AM, worthington_j said:

I'm not sure if this is related to this issue, but I've noticed that all of my chapters are missing thumbnails.

Hi, I can't reproduce, but will do more testing to try to chase this down.

In the meantime you should just be able to refresh the metadata on affected videos using the 3-dot menu. Please let us know if this helps. Thanks.

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