audioanalyzer.py 文件源码

def _call_audio_metadata(self, audio_meta, filepath):
        if audio_meta is False:  # metadata crawling is disabled
            audio_meta = None
        elif audio_meta is None:  # no MBID is given, attempt to get
            # it from id3 tag
            audio_meta = self.crawl_musicbrainz_metadata(filepath)
        elif isinstance(audio_meta, (six.string_types, six.binary_type)):
            # MBID is given
            audio_meta = self.crawl_musicbrainz_metadata(audio_meta)
        elif not isinstance(audio_meta, dict):
            warn_str = 'The "metadata" input can be "False" (skipped), ' \
                       '"basestring" (MBID input), "None" (attempt to get ' \
                       'the MBID from audio file tags) or "dict" (already ' \
                       'computed)'
            warnings.warn(warn_str, stacklevel=2)
        return audio_meta