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# JPEG encoder
[](https://docs.rs/jpeg-encoder/)
[](https://crates.io/crates/jpeg-encoder/)
[](https://github.com/vstroebel/jpeg-encoder/actions/workflows/rust.yml)
A JPEG encoder written in Rust featuring:
- Baseline and progressive compression
- Chroma subsampling
- Optimized huffman tables
- 1, 3 and 4 component colorspaces
- Restart interval
- Custom quantization tables
- AVX2 based optimizations (Optional)
- Support for no_std + alloc
- No `unsafe` by default (Enabling the `simd` feature adds unsafe code)
## Example
```rust
use jpeg_encoder::{Encoder, ColorType};
// An array with 4 pixels in RGB format.
let data = [
255, 0, 0,
0, 255, 0,
0, 0, 255,
255, 255, 255,
];
// Create new encoder that writes to a file with maximum quality (100)
let mut encoder = Encoder::new_file("some.jpeg", 100)?;
// Encode the data with dimension 2x2
encoder.encode(&data, 2, 2, ColorType::Rgb)?;
```
## Crate features
- `std` (default): Enables functionality dependent on the std lib
- `simd`: Enables SIMD optimizations (implies `std` and only AVX2 as for now)
## Minimum Supported Version of Rust (MSRV)
This crate needs at least 1.61 or higher.
## License
This project is licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or https://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or https://opensource.org/licenses/MIT)
## Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in jpeg-encoder by you, as defined in the Apache-2.0 license,
shall be dual licensed as above, without any additional terms or conditions.
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