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from mutagen import easyid3, flac, mp3 |
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from PyQt5.QtCore import QByteArray |
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from mosaic import utilities |
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def identify_filetype(file): |
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"""Identify the given file as either MP3 or FLAC and return a Mutagen object.""" |
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if file.endswith('.mp3'): |
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audio_file = mp3.MP3(file, ID3=easyid3.EasyID3) |
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elif file.endswith('.flac'): |
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audio_file = flac.FLAC(file) |
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return audio_file |
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def extract_metadata(file): |
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"""Extract all of the metadata embedded within the audio file. |
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Creates a dictionary with the tag and data pairs so that the MP3 and FLAC |
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tags are in the same dictionary. |
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""" |
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audio_file = identify_filetype(file) |
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# Mutagen returns None if there is no metadata embedded within a file |
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if audio_file.tags is None: |
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return {} |
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tags_dictionary = dict(audio_file.tags) |
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metadata_dictionary = dict((k, "".join(v)) for k, v in tags_dictionary.items()) |
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return metadata_dictionary |
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def metadata(file): |
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"""Create a list of all the media file's extracted metadata.""" |
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audio_file = identify_filetype(file) |
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file_metadata = extract_metadata(file) |
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album = file_metadata.get('album', '??') |
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artist = file_metadata.get('artist', '??') |
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title = file_metadata.get('title', '??') |
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track_number = file_metadata.get('tracknumber', '??') |
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date = file_metadata.get('date', '') |
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genre = file_metadata.get('genre', '') |
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description = file_metadata.get('description', '') |
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sample_rate = "{} Hz" .format(audio_file.info.sample_rate) |
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artwork = utilities.resource_filename('mosaic.images', 'nocover.png') |
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try: # Bitrate only applies to mp3 files |
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bitrate = "{} kb/s" .format(audio_file.info.bitrate // 1000) |
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bitrate_mode = "{}" .format(audio_file.info.bitrate_mode) |
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except AttributeError: |
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bitrate = '' |
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bitrate_mode = '' |
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try: # Bits per sample only applies to flac files |
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bits_per_sample = "{}" .format(audio_file.info.bits_per_sample) |
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except AttributeError: |
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bits_per_sample = '' |
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61
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try: # Searches for cover art in flac files |
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artwork = QByteArray().append(audio_file.pictures[0].data) |
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except (IndexError, flac.FLACNoHeaderError): |
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artwork = utilities.resource_filename('mosaic.images', 'nocover.png') |
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except AttributeError: # Searches for cover art in mp3 files |
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for tag in mp3.MP3(file): |
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if 'APIC' in tag: |
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artwork = QByteArray().append(mp3.MP3(file)[tag].data) |
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return [album, artist, title, track_number, date, genre, description, sample_rate, |
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bitrate, bitrate_mode, bits_per_sample, artwork] |
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mandeep /
Mosaic
