John Cupitt

... to give a bit more info, HEIC and AVIF use the same container format, called HEIF, but with different codecs. HEIC uses h265 and AVIF uses AV1. https://en.wikipedia.org/wiki/High_Efficiency_Image_File_Format libvips...

I think you will need to do eg. `pip install meson` on older systems.

Build systems often need extra or updated packages, don't they? For example, you'll very frequently need to update cmake before you can build cmake projects, and packages written in rust...

> -Dintrospection=enabled I think this needs to be `-Dintrospection=true`. Though that's the default, so you probably don't need to specify it.

I had a look at gegl (a somewhat similar library) to see how they handle this: https://github.com/macports/macports-ports/blob/master/graphics/gegl/Portfile They list the introspection pkgconfig in `depends_lib`: https://github.com/macports/macports-ports/blob/master/graphics/gegl/Portfile#L51 They use `args-append` for meson...

Hello @Hpsyche, Please open a new discussion for a new question. This issue is just for adding a crop feature to animation thumbnailing. (don't use `thumbnail_image`, use plain `thumbnail`; you...

Hi @euzada, this PR was for tiff read. We could do the same for tiff write, but no one's done the work yet. Maybe next version.

I've been working (very slowly) on improving `dzsave`. I might look at TIFF write after that, if no one else does.

Hi again, I checked this with libvips 8.15, and I think it's working correctly, and I think the webp tiles all have alpha. For example: ``` $ vips copy PNG_transparency_demonstration.png...

> Also, a command line option to write with no alpha would be helpful for such images where openslide adds a blank alpha channel. Thanks for suggesting this, we added...