unsigned get_precision()

in torchaudio/csrc/sox/utils.cpp [390:423]

• 34 lines of code
• 15 McCabe index (conditional complexity)

unsigned get_precision(const std::string filetype, caffe2::TypeMeta dtype) {
  if (filetype == "mp3")
    return SOX_UNSPEC;
  if (filetype == "flac")
    return 24;
  if (filetype == "ogg" || filetype == "vorbis")
    return SOX_UNSPEC;
  if (filetype == "wav" || filetype == "amb") {
    switch (dtype.toScalarType()) {
      case c10::ScalarType::Byte:
        return 8;
      case c10::ScalarType::Short:
        return 16;
      case c10::ScalarType::Int:
        return 32;
      case c10::ScalarType::Float:
        return 32;
      default:
        throw std::runtime_error("Unsupported dtype.");
    }
  }
  if (filetype == "sph")
    return 32;
  if (filetype == "amr-nb") {
    return 16;
  }
  if (filetype == "gsm") {
    return 16;
  }
  if (filetype == "htk") {
    return 16;
  }
  throw std::runtime_error("Unsupported file type: " + filetype);
}