def errbackResult(failure):
log.debug('check', 'returning failed Result, %r' % failure)
m = None
if failure.check(errors.GStreamerGstError):
source, gerror, debug = failure.value.args
log.debug('check', 'GStreamer GError: %s (debug: %s)' % (
gerror.message, debug))
if gerror.domain == "gst-resource-error-quark":
if gerror.code == int(gst.RESOURCE_ERROR_NOT_FOUND):
# dv1394src was fixed after gst-plugins-good 0.10.2
# to distinguish NOT_FOUND and OPEN_READ
version = gstreamer.get_plugin_version('1394')
if version >= (0, 10, 0, 0) and version <= (0, 10, 2, 0):
m = messages.Error(T_(
N_("Could not find or open the Firewire device. "
"Check the device node and its permissions.")))
else:
m = messages.Error(T_(
N_("No Firewire device found.")))
elif gerror.code == int(gst.RESOURCE_ERROR_OPEN_READ):
m = messages.Error(T_(
N_("Could not open Firewire device for reading. "
"Check permissions on the device.")))
if not m:
m = check.handleGStreamerDeviceError(failure, 'Firewire',
mid=mid)
if not m:
m = messages.Error(T_(N_("Could not probe Firewire device.")),
debug=check.debugFailure(failure))
m.id = mid
result.add(m)
return result
def errbackResult(failure):
log.debug('check', 'returning failed Result, %r' % failure)
m = None
if failure.check(errors.GStreamerGstError):
source, gerror, debug = failure.value.args
log.debug('check', 'GStreamer GError: %s (debug: %s)' % (
gerror.message, debug))
if gerror.domain == "gst-resource-error-quark":
if gerror.code == int(gst.RESOURCE_ERROR_NOT_FOUND):
# dv1394src was fixed after gst-plugins-good 0.10.2
# to distinguish NOT_FOUND and OPEN_READ
version = gstreamer.get_plugin_version('1394')
if version >= (0, 10, 0, 0) and version <= (0, 10, 2, 0):
m = messages.Error(T_(
N_("Could not find or open the Firewire device. "
"Check the device node and its permissions.")))
else:
m = messages.Error(T_(
N_("No Firewire device found.")))
elif gerror.code == int(gst.RESOURCE_ERROR_OPEN_READ):
m = messages.Error(T_(
N_("Could not open Firewire device for reading. "
"Check permissions on the device.")))
if not m:
m = check.handleGStreamerDeviceError(failure, 'Firewire',
mid=mid)
if not m:
m = messages.Error(T_(N_("Could not probe Firewire device.")),
debug=check.debugFailure(failure))
m.id = mid
result.add(m)
return result
def getAudioDevices(source_factory, mid=None):
"""
Search the available devices in worker for the specified factory.
Return a deferred firing a result.
The result is either:
- succesful, with an empty list: no device found
- succesful, with the list of found devices
- failed
@rtype: L{twisted.internet.defer.Deferred}
"""
result = messages.Result()
devices = []
def getOssDevices():
bus = dbus.SystemBus()
hal = dbus.Interface(
bus.get_object('org.freedesktop.Hal',
'/org/freedesktop/Hal/Manager'),
'org.freedesktop.Hal.Manager')
udis = hal.FindDeviceStringMatch('oss.type', 'pcm')
for udi in udis:
dev = dbus.Interface(bus.get_object('org.freedesktop.Hal', udi),
'org.freedesktop.Hal.Device')
if not dev.PropertyExists('oss.device'):
continue
if dev.GetProperty('oss.device') != 0:
continue
devices.append((str(dev.GetProperty('info.product')),
str(dev.GetProperty('oss.device_file'))))
def getAlsaDevices():
source = gst.element_factory_make('alsasrc')
pipeline = 'alsasrc name=source device=%s ! fakesink'
for device in source.probe_get_values_name('device'):
p = gst.parse_launch(pipeline % device)
p.set_state(gst.STATE_READY)
s = p.get_by_name('source')
devices.append(
(s.get_property('device-name'), device.split(',')[0]))
p.set_state(gst.STATE_NULL)
try:
{'alsasrc': getAlsaDevices, 'osssrc': getOssDevices}[source_factory]()
except dbus.DBusException:
devices = [("/dev/dsp", "/dev/dsp"), ("/dev/dsp1", "/dev/dsp1"),
("/dev/dsp2", "/dev/dsp2")]
result.succeed(devices)
failure = defer.failure.Failure()
m = messages.Warning(T_(
N_("There has been an error while fetching the OSS audio devices "
"through Hal.\nThe listed devices have been guessed and may "
"not work properly.")),
debug=check.debugFailure(failure))
m.id = mid
result.add(m)
return defer.succeed(result)
except:
failure = defer.failure.Failure()
log.debug(
'check', 'unhandled failure: %r (%s)\nTraceback:\n%s' %
(failure, failure.getErrorMessage(), failure.getTraceback()))
m = messages.Error(T_(N_("Could not probe devices.")),
debug=check.debugFailure(failure))
m.id = mid
result.add(m)
return defer.fail(result)
else:
result.succeed(devices)
if not devices:
m = messages.Error(
T_(
N_("Could not find any device in the system.\n"
"Please check whether the device is correctly plugged "
"in and whether the modules are correctly loaded.")))
m.id = mid
result.add(m)
return defer.succeed(result)
def getAudioDevices(source_factory, mid=None):
"""
Search the available devices in worker for the specified factory.
Return a deferred firing a result.
The result is either:
- succesful, with an empty list: no device found
- succesful, with the list of found devices
- failed
@rtype: L{twisted.internet.defer.Deferred}
"""
result = messages.Result()
devices = []
def getOssDevices():
bus = dbus.SystemBus()
hal = dbus.Interface(bus.get_object('org.freedesktop.Hal',
'/org/freedesktop/Hal/Manager'),
'org.freedesktop.Hal.Manager')
udis = hal.FindDeviceStringMatch('oss.type', 'pcm')
for udi in udis:
dev = dbus.Interface(bus.get_object('org.freedesktop.Hal', udi),
'org.freedesktop.Hal.Device')
if not dev.PropertyExists('oss.device'):
continue
if dev.GetProperty('oss.device') != 0:
continue
devices.append((str(dev.GetProperty('info.product')),
str(dev.GetProperty('oss.device_file'))))
def getAlsaDevices():
source = gst.element_factory_make('alsasrc')
pipeline = 'alsasrc name=source device=%s ! fakesink'
for device in source.probe_get_values_name('device'):
p = gst.parse_launch(pipeline % device)
p.set_state(gst.STATE_READY)
s = p.get_by_name('source')
devices.append((s.get_property('device-name'),
device.split(',')[0]))
p.set_state(gst.STATE_NULL)
try:
{'alsasrc': getAlsaDevices,
'osssrc': getOssDevices}[source_factory]()
except dbus.DBusException, e:
devices = [("/dev/dsp", "/dev/dsp"),
("/dev/dsp1", "/dev/dsp1"),
("/dev/dsp2", "/dev/dsp2")]
result.succeed(devices)
failure = defer.failure.Failure()
m = messages.Warning(T_(
N_("There has been an error while fetching the OSS audio devices "
"through Hal.\nThe listed devices have been guessed and may "
"not work properly.")), debug=check.debugFailure(failure))
m.id = mid
result.add(m)
return defer.succeed(result)
result.succeed(devices)
failure = defer.failure.Failure()
m = messages.Warning(T_(
N_("There has been an error while fetching the OSS audio devices "
"through Hal.\nThe listed devices have been guessed and may "
"not work properly.")), debug=check.debugFailure(failure))
m.id = mid
result.add(m)
return defer.succeed(result)
except:
failure = defer.failure.Failure()
log.debug('check', 'unhandled failure: %r (%s)\nTraceback:\n%s' % (
failure, failure.getErrorMessage(), failure.getTraceback()))
m = messages.Error(T_(N_("Could not probe devices.")),
debug=check.debugFailure(failure))
m.id = mid
result.add(m)
return defer.fail(result)
else:
result.succeed(devices)
if not devices:
m = messages.Error(T_(
N_("Could not find any device in the system.\n"
"Please check whether the device is correctly plugged "
"in and whether the modules are correctly loaded.")))
m.id = mid
result.add(m)
