Crates.io | jpegxl-rs |
lib.rs | jpegxl-rs |
version | 0.10.4+libjxl-0.10.3 |
source | src |
created_at | 2020-08-16 21:20:06.041409 |
updated_at | 2024-06-30 01:49:28.539302 |
description | Safe Rust wrapper for JPEG XL reference implementation |
homepage | |
repository | https://github.com/inflation/jpegxl-rs |
max_upload_size | |
id | 277361 |
size | 140,068 |
A safe JPEGXL wrapper over libjxl
library. Check out the original library
and the bindings.
If you wish to specify a custom library path, set the DEP_JXL_LIB
environment variable.
Building libjxl
and statically linking can be enabled by using the vendored
feature.
If you don't want to depend on C++ standard library, disable the feature threads
.
Currently, u8
, u16
, f16
and f32
are supported as pixel types.
let mut decoder = decoder_builder().build()?;
let (Metadata { width, height, ..}, pixels) = decoder.decode(&sample)?;
match pixels {
Pixels::Float(data) => { /* do something with Vec<f32> data */ },
Pixels::Uint8(data) => { /* do something with Vec<u8> data */ },
Pixels::Uint16(data) => { /* do something with Vec<u16> data */ },
Pixels::Float16(data) => { /* do something with Vec<f16> data */ },
}
// Multi-threading
use jpegxl_rs::ThreadsRunner;
let runner = ThreadsRunner::default();
let mut decoder = decoder_builder()
.parallel_runner(&runner)
.build()?;
// Customize pixel format
let mut decoder = decoder_builder()
.pixel_format(PixelFormat {
num_channels: 3,
endianness: Endianness::Big,
align: 8
})
.build()?;
decoder.decode_with::<u8>(&sample);
// You can change the settings after initialization
decoder.skip_reorientation = Some(true);
// Reconstruct JPEG, fallback to pixels if JPEG reconstruction is not possible
// This operation is finished in on pass
let (metadata, data) = decoder.reconstruct(&sample)?;
match data {
Data::Jpeg(jpeg) => {/* do something with the JPEG data */}
Data::Pixels(pixels) => {/* do something with the pixels data */}
}
use image::io::Reader as ImageReader;
let sample = ImageReader::open("../samples/sample.png")?.decode()?.to_rgba16();
let mut encoder = encoder_builder().build()?;
let buffer: EncoderResult<f32> = encoder.encode(&sample, sample.width(), sample.height())?;
Set encoder options
let mut encoder = encoder_builder()
.lossless(true)
.speed(EncoderSpeed::Falcon)
.build()?;
// You can change the settings after initialization
encoder.lossless = false;
encoder.quality = 3.0;
image
crate integrationThe integration is enabled by default. If you don't need it, disable image
feature.
use jpegxl_rs::image::ToDynamic;
use jpegxl_rs::decoder_builder;
use image::DynamicImage;
let sample = std::fs::read("../samples/sample.jxl")?;
let mut decoder = decoder_builder().build()?;
let img = decoder.decode_to_image(&sample)?;
let img = decoder.decode_to_image_with::<f32>(&sample)?;
License: GPL-3.0-or-later