def Reset(self):
"""Reset all detected chameleon devices."""
logging.info(
'Apply the default EDID and enable DDC on all video inputs')
self._selected_input = None
self._selected_output = None
for port_id in self.GetSupportedInputs():
if self.HasVideoSupport(port_id):
self.ApplyEdid(port_id, ids.EDID_ID_DEFAULT)
self.SetDdcState(port_id, enabled=True)
for port_id in self.GetSupportedPorts():
if self.HasAudioSupport(port_id):
# Stops all audio capturing.
if ids.IsInputPort(
port_id) and self.flows[port_id].is_capturing_audio:
try:
self.flows[port_id].StopCapturingAudio()
except Exception as e:
logging.error('Failed to stop capturing audio: %s',
str(e))
self.flows[port_id].ResetRoute()
# Set all ports unplugged on initialization.
for port_id in self.GetSupportedPorts():
self.Unplug(port_id)
def wrapper(instance, port_id, *args, **kwargs):
if not ids.IsAudioPort(port_id):
raise FlowManagerError(
'Not a valid port_id for audio operation: %d' % port_id)
if input_only and not ids.IsInputPort(port_id):
raise FlowManagerError(
'Not a valid port_id for input operation: %d' % port_id)
elif output_only and not ids.IsOutputPort(port_id):
raise FlowManagerError(
'Not a valid port_id for output operation: %d' % port_id)
return func(instance, port_id, *args, **kwargs)
def StartPlayingEcho(self, port_id, input_id):
"""Echoes audio data received from input_id and plays to port_id.
Echoes audio data received from input_id and plays to port_id.
Chameleon does not support echoing from HDMI and capturing from LineIn/Mic
at the same time. The echoing/capturing needs to be stop first before
another action starts.
For example, user can call
StartPlayingEcho(3, 7) --> StopPlayingAudio(3) --> StartCapturingAudio(6)
or
StartCapturingAudio(6) --> StopCapturingAudio(6) --> StartPlayingEcho(3, 7)
but user can not call
StartPlayingEcho(3, 7) --> StartCapturingAudio(6)
or
StartCapturingAudio(6) --> StartPlayingEcho(3, 7)
Exception is raised when conflicting actions are performed.
Args:
port_id: The ID of the output connector. Check the value in ids.py.
input_id: The ID of the input connector. Check the value in ids.py.
Raises:
FlowManagerError: input_id is not valid for audio operation.
"""
if not ids.IsAudioPort(input_id) or not ids.IsInputPort(input_id):
raise FlowManagerError(
'Not a valid input_id for audio operation: %d' % input_id)
self.SelectInput(input_id)
self.SelectOutput(port_id)
logging.info(
'Start playing echo from port #%d using source from port#%d',
port_id, input_id)
self.flows[port_id].StartPlayingEcho(input_id)