https://github.com/svartalf/rust-imghdr

Library that determines the type of image contained in a file or byte stream
https://github.com/svartalf/rust-imghdr

image imghdr no-std rust

Last synced: 7 days ago
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Library that determines the type of image contained in a file or byte stream

• Host: GitHub
• URL: https://github.com/svartalf/rust-imghdr
• Owner: svartalf
• Created: 2016-07-18T10:20:22.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2024-08-09T20:02:00.000Z (5 months ago)
• Last Synced: 2024-12-31T09:09:54.291Z (14 days ago)
• Topics: image, imghdr, no-std, rust
• Language: Rust
• Homepage: https://crates.io/crates/imghdr
• Size: 30.3 KB
• Stars: 20
• Watchers: 3
• Forks: 9
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md

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README

        
# imghdr

Library that determines the type of image contained in a file or byte stream, basically clone of the Python [imghdr](https://docs.python.org/library/imghdr.html) module.

[![Latest Version](https://img.shields.io/crates/v/imghdr.svg)](https://crates.io/crates/imghdr)

[![Latest Version](https://docs.rs/imghdr/badge.svg)](https://docs.rs/imghdr)

[![Rustc Version 1.31+](https://img.shields.io/badge/rustc-1.31+-lightgray.svg)](https://blog.rust-lang.org/2018/12/06/Rust-1.31-and-rust-2018.html)

[![Travis Build Status](https://travis-ci.org/svartalf/rust-imghdr.svg?branch=master)](https://travis-ci.org/svartalf/rust-imghdr)

![Apache 2.0 OR MIT licensed](https://img.shields.io/badge/license-Apache2.0%2FMIT-blue.svg)

## Examples

Check the file directly:

```rust

# extern crate imghdr;

# fn main() {

match imghdr::from_file("./tests/images/example.png") {

    Ok(Some(imghdr::Type::Png)) => println!("Yep, it is a PNG"),

    Ok(..) => println!("Nope, it is definitely not a PNG"),

    Err(e) => println!("Some error happened: {:?}", e),

}

# }

```

Or check the bytes stream:

```rust

# extern crate imghdr;

# use std::fs::File;

# use std::io::{self, Read};

#

# fn main() -> io::Result<()> {

let mut file = File::open("./tests/images/example.jpeg")?;

let mut content: Vec = vec![];

file.read_to_end(&mut content)?;

match imghdr::from_bytes(&content) {

    Some(imghdr::Type::Jpeg) => println!("And this is a Jpeg"),

    _ => println!("Can a Png, Bmp or other file format"),

}

# Ok(())

# }

```