Jpg XL support

[fredprodibi]

Hello I saw jcupitt working on jpg XL support in libvips libvips/libvips#2181

This feature is really great and I would like to know if you have any plan to add it into .net vips as well?

Thank you

[kleisauke]

It should be automatically supported when libvips is compiled against JPEG-XL. The convenient Jxlload* and Jxlsave* methods will be added to NetVips when libvips 8.11 is released.

For inclusion in the pre-built binaries, it still feels a bit too experimental (for e.g. it's missing metadata support and the standard isn't finalized yet). Also, I'd want to see wg1/jpeg-xl#220 happen first as the current lack of useful commit messages is going to make debugging possible regressions much more complex.

[kleisauke]

The convenient Jxlload* and Jxlsave* methods are available in NetVips v2.0.1. For testing this on Windows, you can use the "all" variant released on the build-win64-mxe repository:
https://github.com/libvips/build-win64-mxe/releases/tag/v8.11.0

See also lovell/sharp#2731 (comment) for an exhaustive list of upstream issues that needs to be addressed before it's included in the pre-built libvips binaries.

[kleisauke]

Closing in favor of libvips/build-win64-mxe#40.