1.6 KiB
QOI - The “Quite OK Image” format for fast, lossless image compression
Single-file MIT licensed library for C/C++
See qoi.h for the documentation.
More info at https://phoboslab.org/log/2021/11/qoi-fast-lossless-image-compression
⚠️ Please note that this library is not yet ready to deal with untrusted input.
⚠️ 2021.11.27 – the specification for QOI has changed to accomodate some concerns with the format. If you are working on a QOI implementation, please refer to #37 The QOI File Format Specification for the details.
These specification changes are not yet reflected in the code here
reflected in qoi.h now.
Why?
Compared to stb_image and stb_image_write QOI offers 20x-50x faster encoding, 3x-4x faster decoding and 20% better compression. It's also stupidly simple and fits in about 300 lines of C.
Example Usage
- qoiconv.c converts between png <> qoi
- qoibench.c a simple wrapper to benchmark stbi, libpng and qoi
Tools
Implementations of QOI
- https://github.com/MasterQ32/zig-qoi (Zig)
- https://github.com/steven-joruk/qoi (Rust)
- https://github.com/ChevyRay/qoi_rs (Rust)
- https://github.com/xfmoulet/qoi (Go)
- https://github.com/panzi/jsqoi (TypeScript)
- https://github.com/pfusik/qoi-ci (Ć)
Packages
AUR - system-wide qoi.h, qoiconv and qoibench install as split packages.