audio_segment.py 文件源码

def __init__(self, data=None, *args, **kwargs):
        if kwargs.get('metadata', False):
            # internal use only
            self._data = data
            for attr, val in kwargs.pop('metadata').items():
                setattr(self, attr, val)
        else:
            # normal construction
            data = data if isinstance(data, basestring) else data.read()
            raw = wave.open(StringIO(data), 'rb')

            raw.rewind()
            self.channels = raw.getnchannels()
            self.sample_width = raw.getsampwidth()
            self.frame_rate = raw.getframerate()
            self.frame_width = self.channels * self.sample_width

            raw.rewind()
            self._data = raw.readframes(float('inf'))

        super(AudioSegment, self).__init__(*args, **kwargs)