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  • Committer: Bazaar Package Importer
  • Author(s): Luca Falavigna
  • Date: 2009-01-30 23:55:34 UTC
  • mto: (18.1.1 squeeze) (2.1.9 sid)
  • mto: This revision was merged to the branch mainline in revision 23.
  • Revision ID: james.westby@ubuntu.com-20090130235534-45857nfsgobw4apc
Tags: upstream-2.0
Import upstream version 2.0

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formats/wma.py
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# Copyright 2006 Lukas Lalinsky
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation
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#
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# $Id: wma.py 4001 2007-04-15 18:44:40Z piman $
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import gst
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from formats._audio import AudioFile
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extensions = [".wma"]
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try:
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    import mutagen.asf
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except ImportError:
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    extensions = []
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else:
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    if gst.registry_get_default().find_plugin("ffmpeg") is None:
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        extensions = []
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class WMAFile(AudioFile):
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    multiple_values = False
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    format = "Windows Media Audio"
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    __translate = {
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        "WM/AlbumTitle": "album",
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        "Title": "title",
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        "Author": "artist",
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        "WM/AlbumArtist": "albumartist",
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        "WM/Composer": "composer",
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        "WM/Writer": "lyricist",
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        "WM/Conductor": "conductor",
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        "WM/ModifiedBy": "remixer",
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        "WM/Producer": "producer",
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        "WM/ContentGroupDescription": "grouping",
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        "WM/SubTitle": "part",
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        "WM/TrackNumber": "tracknumber",
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        "WM/PartOfSet": "discnumber",
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        "WM/BeatsPerMinute": "bpm",
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        "WM/Copyright": "copyright",
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        "WM/ISRC": "isrc",
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        "WM/Mood": "mood",
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        "WM/EncodedBy": "encodedby",
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        "MusicBrainz/Track Id": "musicbrainz_trackid",
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        "MusicBrainz/Album Id": "musicbrainz_albumid",
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        "MusicBrainz/Artist Id": "musicbrainz_artistid",
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        "MusicBrainz/Album Artist Id": "musicbrainz_albumartistid",
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        "MusicBrainz/TRM Id": "musicbrainz_trmid",
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        "MusicIP/PUID": "musicip_puid",
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        "WM/Year": "date",
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    }
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    __rtranslate = dict([(v, k) for k, v in __translate.iteritems()])
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    def __init__(self, filename, audio=None):
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        if audio is None:
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            audio = mutagen.asf.ASF(filename)
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        self["~#length"] = int(audio.info.length)
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        self["~#bitrate"] = int(audio.info.bitrate)
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        for name, values in audio.tags.items():
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            try: name = self.__translate[name]
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            except KeyError: continue
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            self[name] = "\n".join(map(unicode, values))
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        self.sanitize(filename)
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    def write(self):
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        audio = mutagen.asf.ASF(self["~filename"])
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        for key in self.realkeys():
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            try: name = self.__rtranslate[key]
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            except KeyError: continue
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            audio.tags[name] = self.list(key)
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        audio.save()
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        self.sanitize()
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    def can_change(self, key=None):
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        OK = self.__rtranslate.keys()
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        if key is None: return super(WMAFile, self).can_change(key)
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        else: return super(WMAFile, self).can_change(key) and (key in OK)
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info = WMAFile