utils.py 文件源码

def guess_mime_type(audio_file_path, forced_mime_type=None):
    mime = MimeTypes()
    mime_type = forced_mime_type or mime.guess_type(audio_file_path)[0]
    if mime_type not in SUPPORTED_CONTENT_TYPES:
        raise ValueError('MimeType {} not recognized or supported for '
                         'audio file {}'.format(mime_type, audio_file_path))
    return mime_type