JS/WASM build of libjxl (JPEG-XL)

Try it in your browser here

This project uses git submodules to pull in libjxl. If developing, initialize the git submodules first:

> git submodule update --init --recursive

This project uses Docker to provide a consistent developer environment.

Create docker container 'libjxljsbuild'

> scripts/docker-build.sh

Create shell inside libjxljsbuild container:

> scripts/docker-sh.sh

Install node 16 (inside docker shell):

> nvm install 16

To build WASM (inside docker shell):

> scripts/wasm-build.sh

To build native C/C++ version (inside docker shell):

> scripts/native-build.sh

Run performance test (inside docker shell):

> scripts/performance.sh

Luca's suggestions for cjxl parameters to use for progressive lossless encoding

• ./tools/cjxl -P 0 -R 1 -I 0 -s 4 -g 0 in.png out.jxl