audio.py 文件源码

def _callback(self, in_data, frame_count, time_info, status):
        """
        Callback function for continuous_record
        Checks global var recording
           If true, put frames into the queue - another thread will pop from the queue and write to disk
           If false, shut down the recorder (we don't want silence or sudden time shifts in one recording file)
        """
        if self._recording:
            self._frames.put(in_data)
            callback_flag = pyaudio.paContinue
        else:
            callback_flag = pyaudio.paComplete

        return in_data, callback_flag