portaudio.py 文件源码

def write(self, buf):
        with self.lock:
            assert(len(buf) % self.frame_nbyte == 0)
            nframe = len(buf) // self.frame_nbyte
            buf_view = (ctypes.c_byte * len(buf)).from_buffer(buf)
            _check(_lib.Pa_WriteStream(self.stream, buf_view, nframe))
            return buf