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More => Old Versions => JRiver Media Center 20 for Windows => Topic started by: mihalv on December 16, 2014, 12:36:24 am

Title: Rebuild Thumbnail doesn't work
Post by: mihalv on December 16, 2014, 12:36:24 am

To reproduce:
1. import video file
2. run 'Rebuild Thumbnail' (it's ok now)
3. add cover art, then delete cover art (thumbnail will be deleted too)
4. run 'Rebuild Thumbnail' - no result.

Title: Re: Rebuild Thumbnail doesn't work
Post by: Matt on December 16, 2014, 09:05:34 am

My videos switch right back to the thumbnail from the video itself after I erase the cover art.  Strange.

Title: Re: Rebuild Thumbnail doesn't work
Post by: mihalv on December 16, 2014, 10:35:40 am

I think it's not cover art but library issue. I've just tried to erase all thumbnails and then to recreate it. It took 2-3 minutes for MC to create 548 thumbnails but I don't see any of them.

Title: Re: Rebuild Thumbnail doesn't work
Post by: Matt on December 16, 2014, 10:38:29 am

What if you erase all using Options > Tree & View > Erase all thumbnails...?

Title: Re: Rebuild Thumbnail doesn't work
Post by: mihalv on December 16, 2014, 10:39:55 am

yes, and then 'Build missing thumbnails'.

Title: Re: Rebuild Thumbnail doesn't work
Post by: Matt on December 16, 2014, 10:42:12 am

Quote from: mihalv on December 16, 2014, 10:39:55 am

yes, and then 'Build missing thumbnails'.

And then you have no thumbnails or you then have thumbnails?

Title: Re: Rebuild Thumbnail doesn't work
Post by: mihalv on December 16, 2014, 10:45:52 am

I have no thumbnails.

I've just tried to delete c:\Users\...\AppData\Roaming\J River\Media Center 20\Thumbnails\ and to rebuild thumbnails but have no result.

 ;)

Title: Re: Rebuild Thumbnail doesn't work
Post by: Matt on December 16, 2014, 10:51:51 am

I wonder if there's a file permission error?  What if you erase:
C:\Users\[Username]\AppData\Roaming\J River\Media Center 20\Thumbnails

Title: Re: Rebuild Thumbnail doesn't work
Post by: Matt on December 16, 2014, 10:52:22 am

You posted at the same time, and were a step ahead of me!

Title: Re: Rebuild Thumbnail doesn't work
Post by: Matt on December 16, 2014, 11:45:06 am

I'm totally puzzled by your problem.

An uninstall followed by a reinstall?

Sorry to not have other ideas.

Title: Re: Rebuild Thumbnail doesn't work
Post by: locust on December 18, 2014, 07:31:01 am

Do you have hardware accelerate video decoding on in options?  I had a similar issue and having that on fixed it

Title: Re: Rebuild Thumbnail doesn't work
Post by: mihalv on December 18, 2014, 09:19:19 am

Yes. Hardware acceleration was on. Software reinstall also doesn't help  :-\

Title: Re: Rebuild Thumbnail doesn't work
Post by: mihalv on December 21, 2014, 06:35:36 am

I found the reason. When you choose 'External Program (default)' as a playback method and try to rebuild thumbnail it will disappear. Return 'Automatic' as a playback method and thumbnail will return after rebuild.

Title: Re: Rebuild Thumbnail doesn't work
Post by: Hendrik on December 21, 2014, 09:25:06 am

The selected playback method is also used for thumbnail generation, and the way rebuild works is that it simply clears the thumbs, which then tasks MC with generating new ones.
Not sure there is a good solution to solve this when you override the playback method...

Title: Re: Rebuild Thumbnail doesn't work
Post by: mihalv on December 21, 2014, 11:51:16 pm

Why not use default playback method to build thumbnail regardless of program settings?

Title: Re: Rebuild Thumbnail doesn't work
Post by: Matt on December 22, 2014, 08:45:16 am

Quote from: mihalv on December 21, 2014, 11:51:16 pm

Why not use default playback method to build thumbnail regardless of program settings?

Yeah, I wondered the same thing.  Hendrik?

Title: Re: Rebuild Thumbnail doesn't work
Post by: Hendrik on December 22, 2014, 08:46:26 am

But that would disable me testing thumbnail generation with other playback modes. Just use MCs player, hmkay? :D