Crate q_compress

source · [−]

Expand description

For crate-level documentation, see either https://crates.io/crates/q_compress or https://github.com/mwlon/quantile-compression/tree/main/q_compress.

Modules

Structs

Wrapper around compressed data, enabling a Decompressor to read bit-level information and maintain its position in the data.

Wrapper around a Vec<usize> with a specific number of bits.

Builds compressed data, enabling a Compressor to write bit-level information and ultimately output a Vec<u8>.

The metadata of a .qco file chunk.

Converts vectors of numbers into compressed bytes.

CompressorConfig

All the settings you can specify about compression.

DecompressedChunk

A whole chunk of decompressed data - both the metadata and the numbers it contained.

Converts compressed bytes into Flags, ChunkMetadata, and vectors of numbers.

DecompressorConfig

All the settings you can specify about decompression.

The configuration stored in a .qco file’s header.

A pairing of a Huffman code with a numerical range.

Enums

ChunkBodyDecompressor

A low-level, stateful way to decompress small batches of numbers at a time.

A wrapper for prefixes in the two cases cases: delta encoded or not.

Functions

Automatically makes an educated guess for the best compression configuration, based on nums and compression_level, then compresses the numbers to bytes.

auto_compressor_config

Automatically makes an educated guess for the best compression configuration, based on nums and compression_level.

auto_decompress

Automatically makes an educated guess for the best decompression configuration, then decompresses the bytes into numbers.