/usr/bin/jack_control is in jackd2 1.9.10+20150825git1ed50c92~dfsg-5.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 | #! /usr/bin/python
name_base = 'org.jackaudio'
control_interface_name = name_base + '.JackControl'
configure_interface_name = name_base + '.Configure'
service_name = name_base + '.service'
import sys
import os
from traceback import print_exc
import dbus
def bool_convert(str_value):
if str_value.lower() == "false":
return False
if str_value.lower() == "off":
return False
if str_value.lower() == "no":
return False
if str_value == "0":
return False
if str_value.lower() == "(null)":
return False
return bool(str_value)
def dbus_type_to_python_type(dbus_value):
if type(dbus_value) == dbus.Boolean:
return bool(dbus_value)
if type(dbus_value) == dbus.Int32 or type(dbus_value) == dbus.UInt32:
return int(dbus_value)
return dbus_value
def python_type_to_jackdbus_type(value, type_char):
type_char = str(type_char)
if type_char == "b":
return bool_convert(value);
elif type_char == "y":
return dbus.Byte(value);
elif type_char == "i":
return dbus.Int32(value)
elif type_char == "u":
return dbus.UInt32(value)
return value
def dbus_type_to_type_string(dbus_value):
if type(dbus_value) == dbus.Boolean:
return "bool"
if type(dbus_value) == dbus.Int32:
return "sint"
if type(dbus_value) == dbus.UInt32:
return "uint"
if type(dbus_value) == dbus.Byte:
return "char"
if type(dbus_value) == dbus.String:
return "str"
return None # throw exception here?
def dbus_typesig_to_type_string(type_char):
type_char = str(type_char)
if type_char == 'i':
return "sint"
if type_char == 'u':
return "uint"
if type_char == 'y':
return "char"
if type_char == 's':
return "str"
if type_char == 'b':
return "bool"
print 'shit'
return None # throw exception here?
def get_parameters(iface, path):
params = iface.GetParametersInfo(path)
#print params
for param in params:
typestr = dbus_typesig_to_type_string(param[0])
name = param[1]
#print name
descr = param[2]
#print descr
isset, default, value = iface.GetParameterValue(path + [name])
#print typestr
if bool(isset):
isset = "set"
else:
isset = "notset"
value = dbus_type_to_python_type(value)
default = dbus_type_to_python_type(default)
print "%20s: %s (%s:%s:%s:%s)" %(name, descr, typestr, isset, default, value)
def print_help():
print "Usage: %s [command] [command] ..." % os.path.basename(sys.argv[0])
print "Commands:"
print " exit - exit jack dbus service (stops jack server if currently running)"
print " help - print this help text"
print " status - check whether jack server is started, return value is 0 if running and 1 otherwise"
print " start - start jack server if not currently started"
print " stop - stop jack server if currently started"
print " sm - switch master to currently selected driver"
print " dl - get list of available drivers"
print " dg - get currently selected driver"
print " ds <driver> - select driver"
print " dp - get parameters of currently selected driver"
print " dpd <param> - get long description for driver parameter"
print " dps <param> <value> - set driver parameter"
print " dpr <param> - reset driver parameter to its default value"
print " asd <driver> - add slave driver"
print " rsd <driver> - remove slave driver"
print " il - get list of available internals"
print " ip <name> - get parameters of given internal"
print " ipd <name> <param> - get long description for internal parameter"
print " ips <name> <param> <value> - set internal parameter"
print " ipr <name> <param> - reset internal parameter to its default value"
print " iload <name> - load internal"
print " iunload <name> - unload internal"
print " ep - get engine parameters"
print " epd <param> - get long description for engine parameter"
print " eps <param> <value> - set engine parameter"
print " epr <param> - reset engine parameter to its default value"
def maybe_print_param_constraint(iface, param):
is_range, is_strict, is_fake, values = iface.GetParameterConstraint(param)
if is_range:
print
print("allowed range: %s to %s (inclusive)" % (values[0][0], values[1][0]))
elif len(values):
print
if is_strict:
print("allowed values:")
else:
print("suggested values:")
max_len = 0
for value in values:
if len(str(value[0])) > max_len:
max_len = len(str(value[0]))
for value in values:
print("%*s'%s' - %s" % (1 + max_len - len(str(value[0])), "", str(value[0]), str(value[1])))
def main():
if len(sys.argv) == 1 or sys.argv[1] in ["-h", "--help", "help"]:
print_help()
sys.exit(0)
bus = dbus.SessionBus()
controller = bus.get_object(service_name, "/org/jackaudio/Controller")
control_iface = dbus.Interface(controller, control_interface_name)
configure_iface = dbus.Interface(controller, configure_interface_name)
# check arguments
index = 1
while index < len(sys.argv):
arg = sys.argv[index]
index += 1
try:
if arg == "exit":
print "--- exit"
control_iface.Exit()
elif arg == "status":
print "--- status"
if control_iface.IsStarted():
print "started"
sys.exit(0)
else:
print "stopped"
sys.exit(1)
elif arg == 'start':
print "--- start"
control_iface.StartServer()
elif arg == 'stop':
print "--- stop"
control_iface.StopServer()
elif arg == 'sm':
print "--- switch master driver"
control_iface.SwitchMaster()
elif arg == 'ism':
if control_iface.IsManuallyActivated():
print "Manually activated"
else:
print "Automatically activated"
elif arg == 'dl':
print "--- drivers list"
is_range, is_strict, is_fake_values, values = configure_iface.GetParameterConstraint(['engine', 'driver'])
for value in values:
print value[1]
elif arg == 'dg':
print "--- get selected driver"
isset, default, value = configure_iface.GetParameterValue(['engine', 'driver'])
print value
elif arg == 'ds':
if index >= len(sys.argv):
print "driver select command requires driver name argument"
sys.exit()
arg = sys.argv[index]
index += 1
print "--- driver select \"%s\"" % arg
configure_iface.SetParameterValue(['engine', 'driver'], dbus.String(arg))
elif arg == 'dp':
print "--- get driver parameters (type:isset:default:value)"
get_parameters(configure_iface, ['driver'])
elif arg == 'dpd':
if index >= len(sys.argv):
print "get driver parameter long description command requires parameter name argument"
sys.exit()
param = sys.argv[index]
index += 1
print "--- get driver parameter description (%s)" % param
type_char, name, short_descr, long_descr = configure_iface.GetParameterInfo(['driver', param])
print long_descr
maybe_print_param_constraint(configure_iface, ['driver', param])
elif arg == 'dps':
if index + 1 >= len(sys.argv):
print "driver parameter set command requires parameter name and value arguments"
sys.exit()
param = sys.argv[index]
index += 1
value = sys.argv[index]
index += 1
print "--- driver param set \"%s\" -> \"%s\"" % (param, value)
type_char, name, short_descr, long_descr = configure_iface.GetParameterInfo(['driver', param])
configure_iface.SetParameterValue(['driver', param], python_type_to_jackdbus_type(value, type_char))
elif arg == 'dpr':
if index >= len(sys.argv):
print "driver parameter reset command requires parameter name argument"
sys.exit()
param = sys.argv[index]
index += 1
print "--- driver param reset \"%s\"" % param
configure_iface.ResetParameterValue(['driver', param])
elif arg == 'ep':
print "--- get engine parameters (type:isset:default:value)"
get_parameters(configure_iface, ['engine'])
elif arg == 'epd':
if index >= len(sys.argv):
print "get engine parameter long description command requires parameter name argument"
sys.exit()
param_name = sys.argv[index]
index += 1
print "--- get engine parameter description (%s)" % param_name
type_char, name, short_descr, long_descr = configure_iface.GetParameterInfo(['engine', param_name])
print long_descr
maybe_print_param_constraint(configure_iface, ['engine', param_name])
elif arg == 'eps':
if index + 1 >= len(sys.argv):
print "engine parameter set command requires parameter name and value arguments"
sys.exit()
param = sys.argv[index]
index += 1
value = sys.argv[index]
index += 1
print "--- engine param set \"%s\" -> \"%s\"" % (param, value)
type_char, name, short_descr, long_descr = configure_iface.GetParameterInfo(['engine', param])
configure_iface.SetParameterValue(['engine', param], python_type_to_jackdbus_type(value, type_char))
elif arg == 'epr':
if index >= len(sys.argv):
print "engine parameter reset command requires parameter name"
sys.exit()
param = sys.argv[index]
index += 1
print "--- engine param reset \"%s\"" % param
type_char, name, short_descr, long_descr = configure_iface.GetParameterInfo(['engine', param])
configure_iface.ResetParameterValue(['engine', param])
elif arg == 'il':
print "--- internals list"
is_leaf, internals = configure_iface.ReadContainer(['internals'])
for internal in internals:
print internal
elif arg == 'ip':
print "--- get internal parameters (type:isset:default:value)"
if index >= len(sys.argv):
print "internal parameters command requires internal name argument"
sys.exit()
internal_name = sys.argv[index]
index += 1
get_parameters(configure_iface, ['internals', internal_name])
elif arg == 'ipd':
if index + 1 >= len(sys.argv):
print "get internal parameter long description command requires internal and parameter name arguments"
sys.exit()
name = sys.argv[index]
index += 1
param = sys.argv[index]
index += 1
print "--- get internal parameter description (%s)" % param
type_char, name, short_descr, long_descr = configure_iface.GetParameterInfo(['internals', name, param])
print long_descr
elif arg == 'ips':
if index + 2 >= len(sys.argv):
print "internal parameter set command requires internal, parameter name and value arguments"
sys.exit()
internal_name = sys.argv[index]
index += 1
param = sys.argv[index]
index += 1
value = sys.argv[index]
index += 1
print "--- internal param set \"%s\" -> \"%s\"" % (param, value)
type_char, name, short_descr, long_descr = configure_iface.GetParameterInfo(['internals', internal_name, param])
configure_iface.SetParameterValue(['internals', internal_name, param], python_type_to_jackdbus_type(value, type_char))
elif arg == 'ipr':
if index + 1 >= len(sys.argv):
print "reset internal parameter command requires internal and parameter name arguments"
sys.exit()
internal_name = sys.argv[index]
index += 1
param = sys.argv[index]
index += 1
print "--- internal param reset \"%s\"" % param
configure_iface.ResetParameterValue(['internals', internal_name, param])
elif arg == 'iload':
print "--- load internal"
if index >= len(sys.argv):
print "load internal command requires internal name argument"
sys.exit()
name = sys.argv[index]
index += 1
result = control_iface.LoadInternal(name)
elif arg == 'iunload':
print "--- unload internal"
if index >= len(sys.argv):
print "unload internal command requires internal name argument"
sys.exit()
name = sys.argv[index]
index += 1
result = control_iface.UnloadInternal(name)
elif arg == 'asd':
print "--- add slave driver"
if index >= len(sys.argv):
print "add slave driver command requires driver name argument"
sys.exit()
name = sys.argv[index]
index += 1
result = control_iface.AddSlaveDriver(name)
elif arg == 'rsd':
print "--- remove slave driver"
if index >= len(sys.argv):
print "remove slave driver command requires driver name argument"
sys.exit()
name = sys.argv[index]
index += 1
result = control_iface.RemoveSlaveDriver(name)
else:
print "Unknown command '%s'" % arg
except dbus.DBusException, e:
print "DBus exception: %s" % str(e)
if __name__ == '__main__':
main()
|