def read_audio_file_meta(
absolute_path: str) -> Optional[CompressedAudioFileMeta]:
if file_exists(absolute_path):
audio_file = None
audio_file_size = file_size_bytes(absolute_path)
try:
if extract_extension(absolute_path) == Extension.MP3.value:
return _read_mp3_file_meta(absolute_path, audio_file_size)
elif extract_extension(absolute_path) == Extension.FLAC.value:
return _read_flac_file_meta(absolute_path, audio_file_size)
except Exception as e:
logger.exception(
"Could not read audio file meta from {}. Details: {}".format(
absolute_path, e))
if audio_file:
audio_file.close()
return None
def read_raw_audio_from_file(input_audio_file_path: str) -> numpy.ndarray:
mono_audio_segment = AudioSegment.from_file(
input_audio_file_path,
extract_extension(input_audio_file_path)).set_channels(1)
normalized_mono_audio_segment = _normalize_to_maximum_dBFS(
mono_audio_segment)
return numpy.true_divide(
normalized_mono_audio_segment.get_array_of_samples(), 32767.0)
def read_audio_tag(input_audio_file_absolute_path: str) -> Optional[Id3Tag]:
if file_exists(input_audio_file_absolute_path):
file_ext = extract_extension(input_audio_file_absolute_path)
if file_ext == Extension.MP3.value:
return read_audio_tag_using(input_audio_file_absolute_path, EasyID3)
elif file_ext == Extension.FLAC.value:
return read_audio_tag_using(input_audio_file_absolute_path, FLAC)
else:
raise ValueError("Unsupported file for reading tags: {}".format(input_audio_file_absolute_path))
else:
logger.error("File {} does not exists, could not read tags".format(input_audio_file_absolute_path))
return None
def test_getting_extension(self):
assert_that(extract_extension('song.ogg')).is_equal_to('ogg')
assert_that(extract_extension('song.ogg.wav')).is_equal_to('wav')
assert_that(extract_extension('config')).is_equal_to('')
assert_that(extract_extension('.vimrc')).is_equal_to('')
def extension(self) -> str:
return extract_extension(self.file_name)