apng

apng is animation png encoder for rust, and made in pure rust.

Example usage

fn main() {
    let files = vec![
        "sample/rust_logo1.png",
        "sample/rust_logo2.png",
        "sample/rust_logo3.png",
        "sample/rust_logo4.png",
        "sample/rust_logo5.png",
        "sample/rust_logo6.png",
    ];

    let mut png_images: Vec<PNGImage> = Vec::new();
    for f in files.iter() {
        png_images.push(apng::load_png(f).unwrap());
    }

    let path = Path::new(r"sample/out.png");
    let mut out = BufWriter::new(File::create(path).unwrap());

    let config = apng::create_config(&png_images, None).unwrap();
    let mut encoder = Encoder::new(&mut out, config).unwrap();
    let frame = Frame {
        delay_num: Some(1),
        delay_den: Some(2),
        ..Default::default()
    };

    match encoder.encode_all(png_images, Some(&frame)) {
        Ok(_n) => println!("success"),
        Err(err) => eprintln!("{}", err),
    }
}

License

here

see also

medium

Reference

• https://developer.mozilla.org/ja/docs/Animated_PNG_graphics
• https://www.w3.org/TR/PNG/