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Dominic Szablewski be8d23c574
Merge pull request #31 from vec4f/bug/qoi_read/fclose 
Close file on allocation failure in `qoi_read()`
2021-11-27 21:04:16 +01:00
.gitignore Initial 2021-11-24 11:07:17 +01:00
qoi.h Merge pull request #31 from vec4f/bug/qoi_read/fclose 2021-11-27 21:04:16 +01:00
qoibench.c Change the API to supply/return channel count and colorspace info 2021-11-27 18:36:17 +01:00
qoiconv.c Change the API to supply/return channel count and colorspace info 2021-11-27 18:36:17 +01:00
README.md Change the API to supply/return channel count and colorspace info 2021-11-27 18:36:17 +01:00

README.md

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