234 lines
8.1 KiB
Python
234 lines
8.1 KiB
Python
#!/usr/bin/python
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# LADITools - Linux Audio Desktop Integration Tools
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# Copyright (C) 2011-2012 Alessio Treglia <quadrispro@ubuntu.com>
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# Copyright (C) 2007-2010, Marc-Olivier Barre <marco@marcochapeau.org>
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# Copyright (C) 2007-2009, Nedko Arnaudov <nedko@arnaudov.name>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import sys
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import dbus
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from .controller import LadiController
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name_base = 'org.jackaudio'
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ctrl_iface_name = name_base + '.JackControl'
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conf_iface_name = name_base + '.Configure'
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service_name = name_base + '.service'
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obj_path = '/org/jackaudio/Controller'
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def _dbus_type_to_python_type (dbus_value):
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if type (dbus_value) == dbus.Boolean:
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return bool(dbus_value)
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if type (dbus_value) == dbus.Int32 or type (dbus_value) == dbus.UInt32:
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return int(dbus_value)
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if type (dbus_value) == dbus.String:
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return str(dbus_value)
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if type (dbus_value) == dbus.Byte:
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return str (dbus_value)
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return dbus_value
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class JackController(LadiController):
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"""Wrapper for controlling and monitoring JACK.
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This class provides an (almost) complete control on configured JACK servers.
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"""
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def __init__ (self):
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LadiController.__init__(self,
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dbus_type='SessionBus',
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service_name=service_name,
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obj_path=obj_path,
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iface_name=ctrl_iface_name)
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def is_started (self):
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return self.controller_iface.IsStarted ()
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def name_owner_changed (name = None, old_owner = None, new_owner = None):
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sys.stderr.write("Name changed : %r\n" % name)
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sys.stderr.flush()
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def is_realtime (self):
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return self.controller_iface.IsRealtime ()
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def get_load (self):
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return self.controller_iface.GetLoad ()
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def get_xruns (self):
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return self.controller_iface.GetXruns ()
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def get_sample_rate (self):
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return self.controller_iface.GetSampleRate ()
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def get_latency (self):
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return self.controller_iface.GetLatency ()
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def reset_xruns (self):
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return self.controller_iface.ResetXruns ()
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def start (self):
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self.controller_iface.StartServer ()
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def stop (self):
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self.controller_iface.StopServer ()
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def kill (self):
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self.controller_iface.Exit ()
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class JackConfigParameter(object):
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"""Wrapper for JACK's parameters.
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This class provides an (almost) complete control to JACK's configuration parameters.
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"""
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def __init__(self, jack, path):
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self._jack = jack
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self.path = path
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self.name = path[-1:]
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def get_name(self):
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return self.name
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def get_type(self):
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return self._jack.get_param_type(self.path)
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def get_value(self):
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return self._jack.get_param_value(self.path)
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def set_value(self, value):
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self._jack.set_param_value(self.path, value)
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def reset_value(self):
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self._jack.reset_param_value(self.path)
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def get_short_description(self):
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return self._jack.get_param_short_description(self.path)
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def get_long_description(self):
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descr = self._jack.get_param_long_description(self.path)
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if not descr:
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descr = self.get_short_description()
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return descr
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def has_range(self):
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return self._jack.param_has_range(self.path)
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def get_range(self):
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return self._jack.param_get_range(self.path)
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def has_enum(self):
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return self._jack.param_has_enum(self.path)
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def is_strict_enum(self):
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return self._jack.param_is_strict_enum(self.path)
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def is_fake_values_enum(self):
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return self._jack.param_is_fake_value(self.path)
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def get_enum_values(self):
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return self._jack.param_get_enum_values(self.path)
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class JackConfigProxy(LadiController):
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"""Wrapper for JACK's configuration.
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This controller provides access to the JACK's whole configuration.
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"""
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def __init__ (self):
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LadiController.__init__(self,
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dbus_type='SessionBus',
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service_name=service_name,
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obj_path=obj_path,
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iface_name=conf_iface_name)
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def name_owner_changed (name = None, old_owner = None, new_owner = None):
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print("Name changed : %r" % name)
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def get_selected_driver (self):
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isset, default, value = self.controller_iface.GetParameterValue (['engine', 'driver'])
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return value
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def read_container (self, path):
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is_leaf, children = self.controller_iface.ReadContainer (path)
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if is_leaf:
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return []
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return children
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def get_param_names (self, path):
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is_leaf, children = self.controller_iface.ReadContainer (path)
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if not is_leaf:
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return []
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return children
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def get_param_short_description (self, path):
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type_char, name, short_descr, long_descr = self.controller_iface.GetParameterInfo (path)
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return short_descr
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def get_param_long_description (self, path):
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type_char, name, short_descr, long_descr = self.controller_iface.GetParameterInfo (path)
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return long_descr
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def get_param_type (self, path):
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type_char, name, short_descr, long_descr = self.controller_iface.GetParameterInfo (path)
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return str (type_char)
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def get_param_value (self, path):
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isset, default, value = self.controller_iface.GetParameterValue (path)
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isset = bool (isset)
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default = _dbus_type_to_python_type (default)
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value = _dbus_type_to_python_type (value)
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return isset, default, value
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def set_param_value (self, path, value):
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typestr = self.get_param_type (path)
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if typestr == "b":
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value = dbus.Boolean (value)
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elif typestr == "y":
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value = dbus.Byte (value)
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elif typestr == "i":
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value = dbus.Int32 (value)
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elif typestr == "u":
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value = dbus.UInt32 (value)
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self.controller_iface.SetParameterValue (path, value)
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def reset_param_value (self, path):
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self.controller_iface.ResetParameterValue (path)
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def param_has_range (self, path):
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is_range, is_strict, is_fake_value, values = self.controller_iface.GetParameterConstraint (path)
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return bool (is_range)
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def param_get_range (self, path):
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is_range, is_strict, is_fake_value, values = self.controller_iface.GetParameterConstraint (path)
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if not is_range or len (values) != 2:
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return -1, -1
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return _dbus_type_to_python_type (values[0][0]), _dbus_type_to_python_type (values[1][0])
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def param_has_enum (self, path):
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is_range, is_strict, is_fake_value, values = self.controller_iface.GetParameterConstraint (path)
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return not is_range and len (values) != 0
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def param_is_strict_enum (self, path):
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is_range, is_strict, is_fake_value, values = self.controller_iface.GetParameterConstraint (path)
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return is_strict
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def param_is_fake_value (self, path):
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is_range, is_strict, is_fake_value, values = self.controller_iface.GetParameterConstraint (path)
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return is_fake_value
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def param_get_enum_values (self, path):
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is_range, is_strict, is_fake_value, dbus_values = self.controller_iface.GetParameterConstraint (path)
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values = []
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if not is_range and len (dbus_values) != 0:
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for dbus_value in dbus_values:
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values.append ([_dbus_type_to_python_type (dbus_value[0]), _dbus_type_to_python_type (dbus_value[1])])
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return values
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