repository·main·Indexed 19 days ago
https://github.com/tirr-c/jxl-oxideA spec-conforming JPEG XL decoder implemented in pure Rust. It is available as a high-level library, a command-line tool (jxl-oxide-cli), and a WebAssembly build with JavaScript/TypeScript bindings (jxl-oxide-wasm). The project is modular, consisting of specialized crates including jxl-bitstream for bitstream reading, jxl-coding for entropy decoding, jxl-color for color space conversions, jxl-frame for frame abstractions, jxl-image for header metadata, and jxl-render for the core rendering logic.
jxl-threadpool crate provides a unified abstraction layer over different thread pool implementations. It is designed to be used as a dependency within other jxl-oxide crates to provide consistent multi-threading capabilities.jxl-render crate is the core component of the jxl-oxide project responsible for providing the JPEG XL renderer. It handles the logic required to render JPEG XL images.jxl-bitstream, jxl-coding, jxl-color, etc.), while the jxl-oxide crate serves as a high-level wrapper providing a simplified interface for decoding JPEG XL images.The jxl-vardct crate provides the data structures and types necessary to represent VarDCT (Variable Discrete Cosine Transform) frames. It is primarily used for handling the components of a VarDCT frame, including:
Note: This crate is a data representation layer only. It does not perform the actual decoding, dequantization, or rendering of these frames.
jxl-coding crate provides an entropy decoder that implements the specifications defined in the JPEG XL standard. It is used for decoding the entropy-coded bitstreams within JPEG XL files.jxl-color crate provides functions for handling color encodings as defined by the JPEG XL specification. Its primary capability is performing color space conversions from the XYB colorspace to any of the "enum colorspaces" supported and signaled in a JPEG XL image header.jxl-image crate provides types for handling JPEG XL image headers. It is primarily used to access metadata such as image dimensions (size), color encoding details, and animation timing information (Ticks Per Second/TPS). Most of this metadata is encapsulated within the ImageMetadata struct.The jxl-bitstream crate provides a reader for JPEG XL bitstreams. It is capable of handling both bare codestreams and the container format. The reader can automatically detect which format is being provided.
// Use Bitstream::new_detect to create a reader that automatically
// detects whether the input is a bare codestream or a container format.
let reader = Bitstream::new_detect(input_data);jxl-oxide-cli crate provides the command line interface for the jxl-oxide project. It allows users to interact with JXL (JPEG XL) processing capabilities directly from the terminal.jxl-jbr crate provides functionality to reconstruct JPEG bitstreams from JPEG XL images. This is useful for workflows that require extracting or converting JPEG XL data back into a standard JPEG format.jxl-grid crate provides two primary grid abstractions used for image processing tasks: AlignedGrid and PaddedGrid. These structures are designed to manage spatial data layouts in various image-related contexts within the jxl-oxide ecosystem.jxl-frame crate provides the core types and abstractions for handling JPEG XL frames. In the JPEG XL format, an image is composed of one or more frames. Each frame acts as a single unit of image data that can either be displayed directly or used as a reference by other frames (such as in temporal or hierarchical coding).