Extend Kobo CBX Conversion Limit

[phate7]

What went wrong?

CBX Limit only max is 500mb. I got CBZ with > 500mb. Please give an option to disable the limit.

How can we reproduce it?

CBX Limit only max is 500mb

What Build of Grimmory are you on?

Stable

Your setup

Docker

Screenshots or error messages (optional)

No response

Before submitting

• I've searched existing discussions and this hasn't been reported yet
• I've reviewed this report and have completed it as fully as I can

[balazs-szucs]

Hi,

Blocker on this is, that we use ImageIO for most image related tasks, which known to be very memory hungry and generally scales poorly. There is plan to migrate to libvips which native no-allocation library, that would allow us to scale to essentially any size of CBX files (which are essentially images archieved) without risking OOM and similar errors.

For further info see: #1222

[imnotjames]

This limit is SPECIFICALLY for CBX conversion to Kepub files, not for general CBX files being uploaded to Grimmory.

I have tried doing this and all of the kobo readers I have tried do not handle this well. I had performance issues on the reader, even if the Grimmory server can conver a very large CBX file.

If we supported this, do the kobo readers actually support it?

[ItsKipz]

I have used a (pre-converted) 1gb file on my Kobo Clara Color before with no noticeable issues. I also have previously converted documents of 2gb and larger size but I do not remember specifically checking for performance issues. Having the ability to disable this size limit temporarily, or perform a single conversion manually, would be a huge help.