John Cupitt

Hi @ZechariahB, thanks for report, let's tag this as a bug. If you have time to make a PR, that'd be very appreciated.

Hi @G2G2G2G, Yes, the flatpak build supports AVIF load and save, with a few missing features. Most things should work though. 

Hi again, it works for me. I see: ``` $ wget https://user-images.githubusercontent.com/580843/223641035-50ae6821-43ab-4f36-b68d-240c68c2a31a.png --2023-03-08 22:38:16-- https://user-images.githubusercontent.com/580843/223641035-50ae6821-43ab-4f36-b68d-240c68c2a31a.png ... $ convert 223641035-50ae6821-43ab-4f36-b68d-240c68c2a31a.png test.avif $ flatpak run org.libvips.vipsdisp test.avif (vipsdisp:2): VIPS-WARNING **: 22:38:38.482: heifload:...

Your base64 encoded avif also displays for me in vipsdisp.

I've updated the flatpak again, I don't suppose that helped?

Hi, you need to set up your environment to run stuff from your install prefix. You need to set at least PATH to include /home/pi/RTI/install/bin and PYTHONPATH to include /home/pi/RTI/install/lib/python2.7/site-packages...

For reference, the ruby-vips mutable image class is here: https://github.com/libvips/ruby-vips/blob/master/lib/vips/mutableimage.rb And here's the `mutate` method: https://github.com/libvips/ruby-vips/blob/master/lib/vips/image.rb#L800-L819 The thing to call libvips operations has a few `if`s for enforcing mutability. https://github.com/libvips/ruby-vips/blob/master/lib/vips/operation.rb

libvips supports progress feedback in a couple of ways. You can call `vips_image_set_progress()` on an image and you'll be sent gobject signals as that image is processed: http://www.vips.ecs.soton.ac.uk/supported/current/doc/html/libvips/libvips-VipsImage.html#vips-image-set-progress So just...

Hehe, github linked this issue from something on ruby-vips, I think. I'm trying to fix that up at the moment. Yes, I noticed the signal links were broken yesterday :-(...

Ah great! A `nip4` target (so far anyway, the same dependencies as `vipsdisp`) would be very useful soon too. Your gtk patch for win improves font rendering a lot, I...