montana-brotli

Brotli compression implementation for the Montana batch submission pipeline.

Overview

This crate provides a BrotliCompressor that implements the Compressor trait from montana-pipeline. Brotli provides excellent compression ratios, especially for text-like data such as RLP-encoded transactions.

Usage

use montana_brotli::BrotliCompressor;
use montana_pipeline::Compressor;

// Create a compressor with default settings
let compressor = BrotliCompressor::default();

// Or use presets
let fast = BrotliCompressor::fast();                    // Level 1 - fastest
let balanced = BrotliCompressor::balanced();            // Level 6 - good balance
let max = BrotliCompressor::max_compression();          // Level 11 - maximum compression

// Compress data
let data = b"Hello, World!";
let compressed = compressor.compress(data).unwrap();

// Decompress data
let decompressed = compressor.decompress(&compressed).unwrap();
assert_eq!(decompressed, data);

Compression Levels

Brotli supports compression levels 0-11:

• 0: No compression (store only)
• 1: Fastest compression
• 6: Balanced compression
• 11: Maximum compression (default, optimized for L2 batch submission)

Features

• High compression ratios with configurable levels (0-11)
• Configurable window size for memory/compression tradeoff (default: 4MB, log2 = 22)
• Deterministic compression for reproducible batches
• Default configuration optimized for L2 batch submission (level 11, 4MB window)