Moritz Firsching comments

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                                            Moritz Firsching

JxlBasicInfo.alpha_bits set even for a R,G,B,undefined,alpha file

> > > Conceptually, the channel index shouldn't really matter — channels should be identified by their type and name, not by index. > > Would the encoder be allowed...

libjxl fails to render cmyk_layers / export it to PNG with correct colors

Bisecting this: This worked until https://github.com/libjxl/libjxl/pull/1539. Then using `djxl` with that image failed with the error: `./lib/jxl/image_bundle.cc:123: JXL_CHECK: plane.xsize() != 0 && plane.ysize() != 0` until this error was fixed...

Build fails on Ubuntu 20.04

Thanks for the report! This sounds like you are possibly missing `libjpeg-dev`. Can you try running `sudo apt install libjpeg-dev` before `cmake`?

(v0.10.2) Large JPEG encode creates invalid JXL with no error warning

Also: Is this happening only with v0.10.2 or is this reproducible with other version of libjxl?

After Update to extra/libjxl 0.10.1-1 calibre won't work (extra/calibre 7.6.0-1)

Likely related to the libjxl-gdk-pixbuf issue: #3358

After Update to extra/libjxl 0.10.1-1 calibre won't work (extra/calibre 7.6.0-1)

This seems to be different from the gdk-pixbuf issue, but rather some linking problem

cjpegli not included in Homebrew ?

I think this would best be fixed in homebrew

32bit Float Density Regression

Thanks for the report. Seems like this was introduced by 27afa5e4c2e66d917746f407674369f19b6fca47 Let's see how to fix that...

32bit Float Density Regression

Perhaps @jonsneyers and @eustas can take a look?

cjxl lossless -e8 and -e9 sometimes create an invalid image

The spec is being changed to match what the code in libjxl did in this case