rust

Rust MCAP reading library

A library for parsing MCAP files in Rust.

Work in Progress!

This library is a work in progress, and currently only limited record reading is supported. Check the library support matrix for a feature support comparison.

Usage example

use mcap::records::Record;
use mcap::record_iterator::RecordIterator;

let mut file = std::fs::File::open("../tests/conformance/data/OneMessage/OneMessage.mcap")
    .expect("file not found");
for rec in RecordIterator::new(&mut file) {
    match rec {
        Ok(rec) => match rec {
            Record::Header(header) => println!("Found a header: {:?}", header),
            Record::Message(message) => println!("Found a message: {:?}", message),
            Record::Footer(_) => println!("Found the footer, expect no more records"),
            _ => println!("Found another record: {:?}", rec),
        },
        Err(err) => {
            eprintln!("failed to read next record: {}", err);
        }
    }
}