Method apply

mlx/data/op/LoadAudio.cpp:86–125

      resamplingQuality_(resampling_quality) {}

Sample LoadAudio::apply(const Sample& sample) const {
  auto src = sample::check_key(sample, iKey_, ArrayType::Any);
  auto okey = (oKey_.empty() ? iKey_ : oKey_);
  auto res = sample;

  std::filesystem::path path;
  if (!from_memory_) {
    if (src->type() != ArrayType::Int8) {
      throw std::runtime_error("LoadAudio: expected filename (int8 array)");
    }
    path = prefix_;
    std::string filename(reinterpret_cast<char*>(src->data()), src->size());
    path /= filename;
  }

  std::shared_ptr<Array> info;
  std::shared_ptr<Array> dst;

  // need to return only info?
  if (info_ && infoKey_.empty()) {
    auto audio_info =
        from_memory_ ? core::audio::info(src) : core::audio::info(path);
    res[okey] = extract_audio_info(audio_info, infoType_);
  } else {
    core::audio::AudioInfo audio_info;
    auto audio = from_memory_ ? core::audio::load(src, &audio_info)
                              : core::audio::load(path, &audio_info);
    audio = core::audio::resample(
        audio,
        convert_resample_mode(resamplingQuality_),
        audio_info.sampleRate,
        sampleRate_);

    if (!infoKey_.empty()) {
      res[infoKey_] = extract_audio_info(audio_info, infoType_);
    }
    res[okey] = audio;
  }
  return res;
}

ResampleAudio::ResampleAudio(
    const std::string& ikey,