def SetCurve(session, curve):
"""Send the curve to the camera
Arguments:
session -- The PtpSession."""
ptp_request = PtpSession.PtpRequest(PtpValues.NikonOperations.SET_CURVE,
session.sessionid,
session.NewTransaction())
(ptp_response,
rx) = session.transport.ptp_simple_transaction(ptp_request,
tx_data=curve.pack())
if ptp_response.respcode != PtpValues.StandardResponses.OK:
raise PtpSession.PtpException(ptp_response.respcode)
def AutoFocus(session):
"""Automatically focus the device.
Arguments:
session -- The PtpSession."""
ptp_request = PtpSession.PtpRequest(PtpValues.NikonOperations.AUTO_FOCUS,
session.sessionid,
session.NewTransaction())
(ptp_response,
rx) = session.transport.ptp_simple_transaction(ptp_request,
receiving=False)
if ptp_response.respcode != PtpValues.StandardResponses.OK:
raise PtpSession.PtpException(ptp_response.respcode)
def DisableBodyControls(session, body_control):
"""Disable/enable camera body controls
Arguments:
session -- The PtpSession
control_mode -- The camera control mode to set."""
ptp_request = PtpSession.PtpRequest(
PtpValues.NikonOperations.DISABLE_BODY_CONTROLS, session.sessionid,
session.NewTransaction(), (body_control, ))
(ptp_response,
rx) = session.transport.ptp_simple_transaction(ptp_request,
receiving=False)
if ptp_response.respcode != PtpValues.StandardResponses.OK:
raise PtpSession.PtpException(ptp_response.respcode)
def GetThumbMedium(session, objectHandle, stream=None):
"""Get a medium sized thumbnail.
Arguments:
session -- The PtpSession.
objectid -- The objectid concerned."""
ptp_request = PtpSession.PtpRequest(
PtpValues.NikonOperations.GET_THUMB_MEDIUM, session.sessionid,
session.NewTransaction(), (objectHandle, ))
session.transport.send_ptp_request(ptp_request)
rx_data = session.transport.get_ptp_data(ptp_request, stream)
ptp_response = session.transport.get_ptp_response(ptp_request)
if ptp_response.respcode != PtpValues.StandardResponses.OK:
raise PtpSession.PtpException(ptp_response.respcode)
return rx_data
def GetCurve(session):
"""Retrieve the curve from the camera
Arguments:
session -- The PtpSession."""
ptp_request = PtpSession.PtpRequest(PtpValues.NikonOperations.GET_CURVE,
session.sessionid,
session.NewTransaction())
(ptp_response,
rx) = session.transport.ptp_simple_transaction(ptp_request,
receiving=True)
if ptp_response.respcode != PtpValues.StandardResponses.OK:
raise PtpSession.PtpException(ptp_response.respcode)
return NikonCurveInfo(rx[1])
def RamCapture(session):
"""Capture a picture and leave it in the camera's RAM. Does not autofocus.
Arguments:
session -- The PtpSession."""
# The meaning of the parameter is unknown: 0xffffffff captures into RAM. 0 captures, but doesn't appear to actually save the image
ptp_request = PtpSession.PtpRequest(PtpValues.NikonOperations.RAM_CAPTURE,
session.sessionid,
session.NewTransaction(),
(0xffffffff, ))
(ptp_response,
rx) = session.transport.ptp_simple_transaction(ptp_request,
receiving=False)
if ptp_response.respcode != PtpValues.StandardResponses.OK:
raise PtpSession.PtpException(ptp_response.respcode)
def CheckEvents(session):
"""Check events on the camera -- e.g. Nikon doesn't appear to report property change events over the standard IRQ pipe."""
ptp_request = PtpSession.PtpRequest(PtpValues.NikonOperations.CHECK_EVENTS,
session.sessionid,
session.NewTransaction())
(ptp_response,
rx) = session.transport.ptp_simple_transaction(ptp_request,
receiving=True)
if ptp_response.respcode != PtpValues.StandardResponses.OK:
raise PtpSession.PtpException(ptp_response.respcode)
unpacker = PtpSession.PtpUnpacker(rx[1])
events = ()
for i in xrange(0, unpacker.unpack("<H")[0]):
(code, param) = unpacker.unpack("<HI")
events += (PtpAbstractTransport.PtpEvent(code, 0xffffffff, 0xffffffff,
(param, )), )
return events
def __init__(self, raw):
unpacker = PtpSession.PtpUnpacker(raw)
(data_length, unknown, self.xaxis_start, self.xaxis_end,
self.yaxis_start, self.yaxis_end, self.midpoint_integer,
self.midpoint_decimal, coordcount) = unpacker.unpack("<IHBBBBBBB")
self.coordinates = ()
while coordcount:
self.coordinates += (unpacker.unpack("<BB"), )
coordcount -= 1
def pack(self):
packer = PtpSession.PtpPacker()
packer.pack("<IHBBBBBBB", 2116, 24393, self.xaxis_start,
self.xaxis_end, self.yaxis_start, self.yaxis_end,
self.midpoint_integer, self.midpoint_decimal,
len(self.coordinates))
for c in self.coordinates:
packer.pack("<BB", c[0], c[1])
# FIXME: The rest of the file is unknown
return packer.raw
def PollStatus(session):
"""Poll the status of the device (e.g. for monitoring ASYNC operations such as autofocus or capture).
Arguments:
session -- The PtpSession."""
ptp_request = PtpSession.PtpRequest(PtpValues.NikonOperations.POLL_STATUS,
session.sessionid,
session.NewTransaction())
(ptp_response,
rx) = session.transport.ptp_simple_transaction(ptp_request,
receiving=False)
return ptp_response.respcode