qoi-fast

Fast encoder/decoder for QOI image format, implemented in pure and safe Rust.

Quick summary:

• One of the fastest QOI encoders/decoders out there.
• Compliant with the latest QOI format specification.
• Zero unsafe code.
• Supports decoding from / encoding to std::io streams directly.
• no_std support.
• Roundtrip-tested vs the reference C implementation; fuzz-tested.

Examples

todo!();

Benchmarks

Comparison to the reference C implementation (as of 00e34217), benchmarks timings collected on Apple M1 (1782 images, 1187 MB total):

codec          decode:ms    encode:ms  decode:mp/s  encode:mp/s

qoi-c            4406.63      5515.80        282.4        225.6
qoi-fast         3071.49      4545.08        405.2        273.8

no_std

This crate supports no_std mode. By default, std is enabled via the std feature. You can deactivate the default-features to target core instead. In that case anything related to std::io, std::error::Error and heap allocations is disabled. There is an additional alloc feature that can be activated to bring back the support for heap allocations.

License

This project is dual-licensed under MIT and Apache 2.0.