Get pass line 116 of jumpcutter.py

[GirkovArpa]

Currently ported up to line 116 of jumpcutter.py:

sampleRate, audioData = wavfile.read(TEMP_FOLDER+"/audio.wav")
audioSampleCount = audioData.shape[0]
maxAudioVolume = getMaxVolume(audioData)

I'm not sure if my max volume finder function is doing what I think it's doing, though:

pub fn get_sample_rate(filename: String) -> Metadata {
  let mut reader = hound::WavReader::open(filename).unwrap();
  let metadata = reader.spec();
  let max_volume = reader.samples::<i32>().fold(0.0, |max_volume, s| {
      let sample = f64::from(s.unwrap());
      if sample > max_volume {
        return sample;
      }
      max_volume
  });
  Metadata {
    sample_rate: metadata.sample_rate,
    sample_count: reader.len(),
    max_volume: max_volume
  }
}