Function audio_visualizer::waveform::staticc::png_file::visualize

pub fn visualize(
    samples: &[i16], 
    channels: Channels, 
    directory: &str, 
    filename: &str
)

Visualizes audio as a waveform in a png file. If the data is mono, it creates one file. If the data is stereo, it creates two files (with left and right prefix)