Generating thumbnails with one button

[snoeki]

I use BicBucStriim on two synology j model's and it takes some time when you browse the books due to creating the thumbnails.

I found this the easies to click on a label and wait for the thumbnails to be created, click on another label and wait again and so on untill BicBucStriim has created all the thumbnails.

It would be perfect if there would be an option to create all the thumbnails from your complete calibre library with one button in the admin menu.

[rvolz]

Hm, but that only happens once -- if you don't delete the thumbnails. If both libraries are identical you could even copy the thumbnails.

[snoeki]

I know, it's great the thumbnails are stored. I also found out I can open every label in a new browser tab and this works great.

So it's not really important, but it would be a nice option for people with a slower nas like the synology j models who have a large library with thousands of titles.

[radlerandi]

Why are the thumbnails generated by BBS when i have a cover.jpg already next to the books?

[rvolz]

Simply because the covers are too big, so they are only used in the title details view. Since most NAS are low-power devices runtime scaling is no option either.

[radlerandi]

It's a pity. I changed and added a lot of better or other covers to my books, and in calibre it looks very good, but this way BBS uses the wrong images ... sometimes only an image of text from a self made epub/pdf...

[rvolz]

So what is the problem? If you changed the cover.jpg file after the thumbnail was generated, simply delete the thumbnail file for that title (data/titles/thumb_<calibre id>.png). On the next occasion the thumbnail will be regenerated, using the new cover file.

[radlerandi]

so bbs generates the "thumb_.png" from a book file. Which file type? i have PDF, EPUP, ODT and MOBI files. I'm sure, it's faster to convert from an already existing cover.jpg to "thumb_.png" instead of looking into a book file. Also not all my files have a cover and i don't want to update all of them.

[rvolz]

No, the cover.jpg is generated by Calibre from your book files or anything that you upload. That is the cover image you see when browsing books in Calibre. Calibre offers you various options to modify that image in the metadata edit screen.

BicBucStriim simply takes that file and generates a thumbnail from it. If you want a different thumbnail: change cover.jpg and then delete the current thumbnail.

[radlerandi]

it uses the cover.jpg on the details page. But not in the overview.

[radlerandi]

sorry. i deleted the images and bbs grabbed the new ones.