Traceback (most recent call last):
  File "/home/pi/test.py", line 4, in <module>
    camera.start_recording('test.h264')
  File "/usr/lib/python2.7/dist-packages/picamera/camera.py", line 795, in start_recording
    self, camera_port, output_port, format, resize, **options)
  File "/usr/lib/python2.7/dist-packages/picamera/encoders.py", line 431, in __init__
    parent, camera_port, input_port, format, resize, **options)
  File "/usr/lib/python2.7/dist-packages/picamera/encoders.py", line 124, in __init__
    self._create_encoder(**options)
  File "/usr/lib/python2.7/dist-packages/picamera/encoders.py", line 491, in _create_encoder
    prefix="Enable to set SEI")
  File "/usr/lib/python2.7/dist-packages/picamera/exc.py", line 112, in mmal_check
    raise PiCameraMMALError(status, prefix)
PiCameraMMALError: Enable to set SEI: Function not implemented
>>>