(self, nchannels)
| 492 | # User visible methods. |
| 493 | # |
| 494 | def setnchannels(self, nchannels): |
| 495 | if self._datawritten: |
| 496 | raise Error('cannot change parameters after starting to write') |
| 497 | if nchannels < 1: |
| 498 | raise Error('bad # of channels') |
| 499 | self._nchannels = nchannels |
| 500 | |
| 501 | def getnchannels(self): |
| 502 | if not self._nchannels: |