dump_frames example is assuming stride has no line padding.

[SirVer]

The dump frames example is assuming that frame.width() * frame.height() == frame.stride(0) which is not necessarily true. A fixed version of the save_file function looks like this.

fn save_file(frame: &Video, index: usize) -> std::result::Result<(), std::io::Error> {
    let mut file = File::create(format!("frame{}.ppm", index))?;
    file.write_all(format!("P6\n{} {}\n255\n", frame.width(), frame.height()).as_bytes())?;
    let byt = frame.data(0);
    for y in 0..frame.height() {
        let start = y as usize * (frame.stride(0) as usize);
        let end = start + frame.width() as usize * 3;
        file.write_all(&byt[start..end])?;
    }
    Ok(())
}

I am sorry that I cannot open a pull request right now, I am on limited internet. But this method works for my data.

[nullsauce]

Thanks @SirVer! I'll see if I can have a closer look and push this soon.