apng is animation png encoder for rust, and made in pure rust.
```rust fn main() { let files = vec![ "sample/rustlogo1.png", "sample/rustlogo2.png", "sample/rustlogo3.png", "sample/rustlogo4.png", "sample/rustlogo5.png", "sample/rustlogo6.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),
}
} ```