def _joined_cb(self, activity):
self._shared_activity = self._activity.get_shared_activity()
if self._shared_activity is None:
debug_output(
'Failed to share or join activity ... \
_shared_activity is null in _shared_cb()',
self._tw.running_sugar)
return
self._tw.set_sharing(True)
self.initiating = False
self.conn = self._shared_activity.telepathy_conn
self.tubes_chan = self._shared_activity.telepathy_tubes_chan
self.text_chan = self._shared_activity.telepathy_text_chan
# call back for "NewTube" signal
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES].connect_to_signal(
'NewTube', self._new_tube_cb)
debug_output('I am joining an activity: waiting for a tube...',
self._tw.running_sugar)
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES].ListTubes(
reply_handler=self._list_tubes_reply_cb,
error_handler=self._list_tubes_error_cb)
# Joiner should request current state from sharer.
self.waiting_for_turtles = True
self._enable_share_button()
def _joined_cb(self, activity):
self._shared_activity = self._activity.get_shared_activity()
if self._shared_activity is None:
debug_output('Failed to share or join activity ... \
_shared_activity is null in _shared_cb()',
self._tw.running_sugar)
return
self._tw.set_sharing(True)
self.initiating = False
self.conn = self._shared_activity.telepathy_conn
self.tubes_chan = self._shared_activity.telepathy_tubes_chan
self.text_chan = self._shared_activity.telepathy_text_chan
# call back for "NewTube" signal
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES].connect_to_signal(
'NewTube', self._new_tube_cb)
debug_output('I am joining an activity: waiting for a tube...',
self._tw.running_sugar)
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES].ListTubes(
reply_handler=self._list_tubes_reply_cb,
error_handler=self._list_tubes_error_cb)
# Joiner should request current state from sharer.
self.waiting_for_turtles = True
self._enable_share_button()
def _joined_cb(self, collab):
# Now that we have the tube, we can ask for the turtle dictionary.
debug_output('Sending a request for the turtle dictionary',
self._tw.running_sugar)
# We need to send our own nick, colors, and turtle position
colors = self._get_colors()
event = data_to_string([self._get_nick(), colors])
debug_output(event, self._tw.running_sugar)
self.send_event('t', event)
def bobot_poll(self):
if self.pollrun:
time = 6
if self.tw.get_init_complete():
if self.can_refresh:
time = 3
self.check_for_device_change(False)
self.pollthread = threading.Timer(time, self.bobot_poll)
self.pollthread.start()
else:
debug_output(_("Ending Butia polling"))
def _splitter_pad_added(self, element, pad):
''' Seems to be the case that ring is right channel 0,
tip is left channel 1'''
'''
debug_output('splitter pad %d added' % (self._pad_count),
self.parent.running_sugar)
'''
self.pads.append(pad)
if self._pad_count < self.channels:
pad.link(self.queue[self._pad_count].get_pad('sink'))
self.queue[self._pad_count].get_pad('src').link(
self.fakesink[self._pad_count].get_pad('sink'))
self._pad_count += 1
else:
debug_output('ignoring channels > %d' % (self.channels),
self.parent.running_sugar)
def _splitter_pad_added(self, element, pad):
''' Seems to be the case that ring is right channel 0,
tip is left channel 1'''
'''
debug_output('splitter pad %d added' % (self._pad_count),
self.parent.running_sugar)
'''
self.pads.append(pad)
if self._pad_count < self.channels:
pad.link(self.queue[self._pad_count].get_pad('sink'))
self.queue[self._pad_count].get_pad('src').link(
self.fakesink[self._pad_count].get_pad('sink'))
self._pad_count += 1
else:
debug_output('ignoring channels > %d' % (self.channels),
self.parent.running_sugar)
def _set_autogain(self, state, camera=0):
''' 0 is off; 1 is on '''
if self._ag_control is not None and self._ag_control.value == state:
return
try:
video_capture_device = open(self.devices[camera], 'rw')
except:
video_capture_device = None
debug_output('video capture device not available',
self._parent.running_sugar)
return
self._ag_control = v4l2_control(V4L2_CID_AUTOGAIN)
try:
ioctl(video_capture_device, VIDIOC_G_CTRL, self._ag_control)
self._ag_control.value = state
ioctl(video_capture_device, VIDIOC_S_CTRL, self._ag_control)
except:
pass
video_capture_device.close()
def _set_autogain(self, state, camera=0):
''' 0 is off; 1 is on '''
if self._ag_control is not None and self._ag_control.value == state:
return
try:
video_capture_device = open(self.devices[camera], 'rw')
except BaseException:
video_capture_device = None
debug_output('video capture device not available',
self._parent.running_sugar)
return
self._ag_control = v4l2_control(V4L2_CID_AUTOGAIN)
try:
ioctl(video_capture_device, VIDIOC_G_CTRL, self._ag_control)
self._ag_control.value = state
ioctl(video_capture_device, VIDIOC_S_CTRL, self._ag_control)
except BaseException:
pass
video_capture_device.close()
def check_output(command, warning, running_sugar=True):
''' Workaround for old systems without subprocess.check_output'''
if hasattr(subprocess, 'check_output'):
try:
output = subprocess.check_output(command)
except subprocess.CalledProcessError:
debug_output(warning, running_sugar)
return None
else:
import commands
cmd = ''
for c in command:
cmd += c
cmd += ' '
(status, output) = commands.getstatusoutput(cmd)
if status != 0:
debug_output(warning, running_sugar)
return None
return output
def check_output(command, warning, running_sugar=True):
''' Workaround for old systems without subprocess.check_output'''
if hasattr(subprocess, 'check_output'):
try:
output = subprocess.check_output(command)
except subprocess.CalledProcessError:
debug_output(warning, running_sugar)
return None
else:
import commands
cmd = ''
for c in command:
cmd += c
cmd += ' '
(status, output) = commands.getstatusoutput(cmd)
if status != 0:
debug_output(warning, running_sugar)
return None
return output
def _shared_cb(self, activity):
self._shared_activity = self._activity.get_shared_activity()
if self._shared_activity is None:
debug_output('Failed to share or join activity ... \
_shared_activity is null in _shared_cb()',
self._tw.running_sugar)
return
self._tw.set_sharing(True)
self.initiating = True
self.waiting_for_turtles = False
self._tw.remote_turtle_dictionary = self._get_dictionary()
debug_output('I am sharing...', self._tw.running_sugar)
self.conn = self._shared_activity.telepathy_conn
self.tubes_chan = self._shared_activity.telepathy_tubes_chan
self.text_chan = self._shared_activity.telepathy_text_chan
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES].connect_to_signal(
'NewTube', self._new_tube_cb)
debug_output('This is my activity: making a tube...',
self._tw.running_sugar)
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES].OfferDBusTube(
SERVICE, {})
self._enable_share_button()
def _receive_turtle_dict(self, payload):
''' Any time there is a new joiner, an updated turtle dictionary is
circulated. Everyone must report their turtle positions so that we
are in sync. '''
if self.waiting_for_turtles:
if len(payload) > 0:
# Grab the new remote turtles dictionary.
remote_turtle_dictionary = data_from_string(payload)
# Add see what is new.
for nick in remote_turtle_dictionary:
if nick == self._tw.nick:
debug_output('skipping my nick %s' %
(nick), self._tw.running_sugar)
elif nick != self._tw.remote_turtle_dictionary:
# Add new the turtle.
colors = remote_turtle_dictionary[nick]
self._tw.remote_turtle_dictionary[nick] = colors
self._tw.turtles.set_turtle(nick, colors)
# Label the remote turtle.
self._tw.label_remote_turtle(nick, colors)
debug_output('adding %s to remote turtle dictionary' %
(nick), self._tw.running_sugar)
else:
debug_output('%s already in remote turtle dictionary' %
(nick), self._tw.running_sugar)
self.waiting_for_turtles = False
self.send_my_xy()
def _new_tube_cb(self, id, initiator, type, service, params, state):
""" Create a new tube. """
debug_output(
'New tube: ID=%d initator=%d type=%d service=%s \
params=%r state=%d' %
(id, initiator, type, service, params, state), self._tw.running_sugar)
if (type == telepathy.TUBE_TYPE_DBUS and service == SERVICE):
if state == telepathy.TUBE_STATE_LOCAL_PENDING:
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES]\
.AcceptDBusTube(id)
self.collab = CollabWrapper(self)
self.collab.message.connect(self.event_received_cb)
self.collab.setup()
# Now that we have the tube, we can ask for the turtle dictionary.
if self.waiting_for_turtles: # A joiner must wait for turtles.
debug_output('Sending a request for the turtle dictionary',
self._tw.running_sugar)
# We need to send our own nick, colors, and turtle position
colors = self._get_colors()
event = data_to_string([self._get_nick(), colors])
debug_output(event, self._tw.running_sugar)
self.send_event("t", {"payload": event})
def _new_tube_cb(self, id, initiator, type, service, params, state):
""" Create a new tube. """
debug_output(
'New tube: ID=%d initator=%d type=%d service=%s \
params=%r state=%d' %
(id, initiator, type, service, params, state), self._tw.running_sugar)
if (type == telepathy.TUBE_TYPE_DBUS and service == SERVICE):
if state == telepathy.TUBE_STATE_LOCAL_PENDING:
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES]\
.AcceptDBusTube(id)
tube_conn = TubeConnection(
self.conn,
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES],
id,
group_iface=self.text_chan[telepathy.CHANNEL_INTERFACE_GROUP])
# We'll use a chat tube to send serialized stacks back and forth.
self.chattube = ChatTube(tube_conn, self.initiating,
self.event_received_cb)
# Now that we have the tube, we can ask for the turtle dictionary.
if self.waiting_for_turtles: # A joiner must wait for turtles.
debug_output('Sending a request for the turtle dictionary',
self._tw.running_sugar)
# We need to send our own nick, colors, and turtle position
colors = self._get_colors()
event = 't|' + data_to_string([self._get_nick(), colors])
debug_output(event, self._tw.running_sugar)
self.send_event(event)
def _new_tube_cb(self, id, initiator, type, service, params, state):
""" Create a new tube. """
debug_output(
'New tube: ID=%d initator=%d type=%d service=%s \
params=%r state=%d' %
(id, initiator, type, service, params, state),
self._tw.running_sugar)
if (type == telepathy.TUBE_TYPE_DBUS and service == SERVICE):
if state == telepathy.TUBE_STATE_LOCAL_PENDING:
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES]\
.AcceptDBusTube(id)
self.collab = CollabWrapper(self)
self.collab.message.connect(self.event_received_cb)
self.collab.setup()
# Now that we have the tube, we can ask for the turtle dictionary.
if self.waiting_for_turtles: # A joiner must wait for turtles.
debug_output('Sending a request for the turtle dictionary',
self._tw.running_sugar)
# We need to send our own nick, colors, and turtle position
colors = self._get_colors()
event = data_to_string([self._get_nick(), colors])
debug_output(event, self._tw.running_sugar)
self.send_event("t", {"payload": event})
def _shared_cb(self, activity):
self._shared_activity = self._activity.get_shared_activity()
if self._shared_activity is None:
debug_output(
'Failed to share or join activity ... \
_shared_activity is null in _shared_cb()',
self._tw.running_sugar)
return
self._tw.set_sharing(True)
self.initiating = True
self.waiting_for_turtles = False
self._tw.remote_turtle_dictionary = self._get_dictionary()
debug_output('I am sharing...', self._tw.running_sugar)
self.conn = self._shared_activity.telepathy_conn
self.tubes_chan = self._shared_activity.telepathy_tubes_chan
self.text_chan = self._shared_activity.telepathy_text_chan
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES].connect_to_signal(
'NewTube', self._new_tube_cb)
debug_output('This is my activity: making a tube...',
self._tw.running_sugar)
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES].OfferDBusTube(
SERVICE, {})
self._enable_share_button()
def _receive_turtle_dict(self, payload):
''' Any time there is a new joiner, an updated turtle dictionary is
circulated. Everyone must report their turtle positions so that we
are in sync. '''
if self.waiting_for_turtles:
if len(payload) > 0:
# Grab the new remote turtles dictionary.
remote_turtle_dictionary = data_from_string(payload)
# Add see what is new.
for nick in remote_turtle_dictionary:
if nick == self._tw.nick:
debug_output('skipping my nick %s' % (nick),
self._tw.running_sugar)
elif nick != self._tw.remote_turtle_dictionary:
# Add new the turtle.
colors = remote_turtle_dictionary[nick]
self._tw.remote_turtle_dictionary[nick] = colors
self._tw.turtles.set_turtle(nick, colors)
# Label the remote turtle.
self._tw.label_remote_turtle(nick, colors)
debug_output(
'adding %s to remote turtle dictionary' % (nick),
self._tw.running_sugar)
else:
debug_output(
'%s already in remote turtle dictionary' % (nick),
self._tw.running_sugar)
self.waiting_for_turtles = False
self.send_my_xy()
def _new_tube_cb(self, id, initiator, type, service, params, state):
""" Create a new tube. """
debug_output(
'New tube: ID=%d initator=%d type=%d service=%s \
params=%r state=%d' %
(id, initiator, type, service, params, state),
self._tw.running_sugar)
if (type == telepathy.TUBE_TYPE_DBUS and service == SERVICE):
if state == telepathy.TUBE_STATE_LOCAL_PENDING:
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES]\
.AcceptDBusTube(id)
tube_conn = TubeConnection(
self.conn,
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES],
id,
group_iface=self.text_chan[telepathy.CHANNEL_INTERFACE_GROUP])
# We'll use a chat tube to send serialized stacks back and forth.
self.chattube = ChatTube(tube_conn, self.initiating,
self.event_received_cb)
# Now that we have the tube, we can ask for the turtle dictionary.
if self.waiting_for_turtles: # A joiner must wait for turtles.
debug_output('Sending a request for the turtle dictionary',
self._tw.running_sugar)
# We need to send our own nick, colors, and turtle position
colors = self._get_colors()
event = 't|' + data_to_string([self._get_nick(), colors])
debug_output(event, self._tw.running_sugar)
self.send_event(event)
def calc_luminance(self, camera=0):
array = self.cameras[camera].pixbuf.get_pixels()
width = self.cameras[camera].pixbuf.get_width()
height = self.cameras[camera].pixbuf.get_height()
if array is not None:
length = int(len(array) / 3)
if length != width * height:
debug_output('array length != width x height (%d != %dx%d)' %
(length, width, height),
self._parent.running_sugar)
# Average the 100 pixels in the center of the screen
r, g, b = 0, 0, 0
row_offset = int((height / 2 - 5) * width * 3)
column_offset = int(width / 2 - 5) * 3
for y in range(10):
i = row_offset + column_offset
for x in range(10):
r += ord(array[i])
i += 1
g += ord(array[i])
i += 1
b += ord(array[i])
i += 1
row_offset += width * 3
if self.luminance_only:
self.luminance = int((r * 0.3 + g * 0.6 + b * 0.1) / 100)
else:
self.r = int(r / 100)
self.g = int(g / 100)
self.b = int(b / 100)
else:
if self.luminance_only:
self.luminance = -1
else:
self.r = -1
self.g = -1
self.b = -1
def calc_luminance(self, camera=0):
array = self.cameras[camera].pixbuf.get_pixels()
width = self.cameras[camera].pixbuf.get_width()
height = self.cameras[camera].pixbuf.get_height()
if array is not None:
length = int(len(array) / 3)
if length != width * height:
debug_output('array length != width x height (%d != %dx%d)' % \
(length, width, height),
self._parent.running_sugar)
# Average the 100 pixels in the center of the screen
r, g, b = 0, 0, 0
row_offset = int((height / 2 - 5) * width * 3)
column_offset = int(width / 2 - 5) * 3
for y in range(10):
i = row_offset + column_offset
for x in range(10):
r += ord(array[i])
i += 1
g += ord(array[i])
i += 1
b += ord(array[i])
i += 1
row_offset += width * 3
if self.luminance_only:
self.luminance = int((r * 0.3 + g * 0.6 + b * 0.1) / 100)
else:
self.r = int(r / 100)
self.g = int(g / 100)
self.b = int(b / 100)
else:
if self.luminance_only:
self.luminance = -1
else:
self.r = -1
self.g = -1
self.b = -1
def event_received_cb(self, event_message):
"""
Events are sent as a tuple, nick|cmd, where nick is a turle name
and cmd is a turtle event. Everyone gets the turtle dictionary from
the sharer and watches for 't' events, which indicate that a new
turtle has joined.
"""
if len(event_message) == 0:
return
# Save active Turtle
save_active_turtle = self._tw.active_turtle
try:
command, payload = event_message.split('|', 2)
self._processing_methods[command](payload)
except ValueError:
debug_output('Could not split event message.',
self._tw.running_sugar)
# Restore active Turtle
self._tw.canvas.set_turtle(
self._tw.turtles.get_turtle_key(save_active_turtle))
def event_received_cb(self, event_message):
"""
Events are sent as a tuple, nick|cmd, where nick is a turle name
and cmd is a turtle event. Everyone gets the turtle dictionary from
the sharer and watches for 't' events, which indicate that a new
turtle has joined.
"""
if len(event_message) == 0:
return
# Save active Turtle
save_active_turtle = self._tw.turtles.get_active_turtle()
try:
command, payload = event_message.split('|', 2)
except ValueError:
debug_output('Could not split event message [%s]' % event_message,
self._tw.running_sugar)
self._processing_methods[command](payload)
# Restore active Turtle
self._tw.turtles.set_turtle(
self._tw.turtles.get_turtle_key(save_active_turtle))
def pybot_launch(self):
res = self.butia.reconnect()
if res == ERROR:
try:
debug_output(_('Creating PyBot server'))
self.bobot = subprocess.Popen(['python', 'pybot_server.py'],
cwd='./plugins/butia/pybot')
time.sleep(1)
self.butia.reconnect()
except:
debug_output(_('ERROR creating PyBot server'))
else:
debug_output(_('PyBot is alive!'))
def pybot_launch(self):
res = self.butia.reconnect()
if res == ERROR:
try:
debug_output(_('Creating PyBot server'))
self.bobot = subprocess.Popen(
['python', 'pybot_server.py'],
cwd=os_path.join(os_path.dirname(__file__),'pybot'))
time.sleep(1)
self.butia.reconnect()
except:
debug_output(_('ERROR creating PyBot server'))
else:
debug_output(_('PyBot is alive!'))
self.pollthread=threading.Timer(1, self.bobot_poll)
self.pollthread.start()
def _prim_add_food(self, name, media, calories, protein, carbohydrates,
fiber, fat):
# Add a new food item to the palette
palette = make_palette('food',
colors=["#FFFFFF", "#A0A0A0"],
help_string=_('Palette of foods'))
# We need to convert the media into two svgs, one for the
# palette and one for the block.
filepath = None
if media is not None and os.path.exists(media.value):
filepath = media.value
elif self.tw.running_sugar: # datastore object
from sugar.datastore import datastore
try:
dsobject = datastore.get(media.value)
except:
debug_output("Couldn't find dsobject %s" % (media.value),
self.tw.running_sugar)
if dsobject is not None:
filepath = dsobject.file_path
if filepath is None:
self.tw.showlabel('nojournal', filepath)
return
pixbuf = None
try:
pixbufsmall = gtk.gdk.pixbuf_new_from_file_at_size(
filepath, 40, 40)
pixbufoff = gtk.gdk.pixbuf_new_from_file_at_size(filepath, 40, 40)
except:
self.tw.showlabel('nojournal', filepath)
debug_output("Couldn't open food image %s" % (filepath),
self.tw.running_sugar)
return
def _draw_pixbuf(cr, pixbuf, x, y, w, h):
# Build a gtk.gdk.CairoContext from a cairo.Context to access
# the set_source_pixbuf attribute.
cc = gtk.gdk.CairoContext(cr)
cc.save()
# center the rotation on the center of the image
cc.translate(x + w / 2., y + h / 2.)
cc.translate(-x - w / 2., -y - h / 2.)
cc.set_source_pixbuf(pixbuf, x, y)
cc.rectangle(x, y, w, h)
cc.fill()
cc.restore()
if self.tw.running_sugar:
path = os.path.join(get_path(self.tw.activity, 'instance'),
'output.svg')
else:
path = TMP_SVG_PATH
svg_surface = cairo.SVGSurface(path, 40, 40)
cr_svg = cairo.Context(svg_surface)
_draw_pixbuf(cr_svg, pixbufsmall, 0, 0, 40, 40)
cr_svg.show_page()
svg_surface.flush()
svg_surface.finish()
destination = os.path.join(self.tw.path, 'plugins', 'food', 'images',
name.encode('ascii') + 'small.svg')
check_output(['mv', path, destination],
'problem moving %s to %s' % (path, destination))
pixbufsmall = gtk.gdk.pixbuf_new_from_file_at_size(destination, 40, 40)
self.tw.media_shapes[name.encode('ascii') + 'small'] = pixbufsmall
svg_surface = cairo.SVGSurface(path, 40, 40)
cr_svg = cairo.Context(svg_surface)
_draw_pixbuf(cr_svg, pixbufoff, 0, 0, 40, 40)
cr_svg.show_page()
svg_surface.flush()
svg_surface.finish()
destination = os.path.join(self.tw.path, 'plugins', 'food', 'images',
name.encode('ascii') + 'off.svg')
check_output(['mv', path, destination],
'problem moving %s to %s' % (path, destination))
# Now that we have the images, we can make the new block
self._make_polynominal(palette,
name.encode('ascii'),
name,
[calories, protein, carbohydrates, fiber, fat],
expand=(15, 15))
pixbufoff = gtk.gdk.pixbuf_new_from_file_at_size(destination, 40, 40)
self.tw.media_shapes[name.encode('ascii') + 'off'] = pixbufoff
# Show the new block
self.tw.show_toolbar_palette(palette_name_to_index('food'),
regenerate=True)
# Finally, we need to save new food item to a database so it
# loads next time.
food = name.encode('ascii')
self.food_dictionary[food] = {}
self.food_dictionary[food]['name'] = name
self.food_dictionary[food]['calories'] = calories
self.food_dictionary[food]['protein'] = protein
self.food_dictionary[food]['carbohydrates'] = carbohydrates
self.food_dictionary[food]['fiber'] = fiber
self.food_dictionary[food]['fat'] = fat
path = os.path.join(self.tw.path, 'plugins', 'food', 'food.db')
data_to_file(self.food_dictionary, path)
return
def _status_report(self):
debug_output('Reporting camera status: %s' % (str(self._status)),
self._parent.running_sugar)
return self._status
def _status_report(self):
debug_output('Reporting accelerator status: %s' % (str(self._status)))
return self._status
def _status_report(self):
debug_output('Reporting RFID status: %s' % (str(self._status)))
return self._status
def _status_report(self):
debug_output('Reporting light-sensor status: %s' % (str(self._status)))
return self._status
def _status_report(self):
debug_output('Reporting light-sensor status: %s' % (str(self._status)))
return self._status
def _status_report(self):
debug_output('Reporting accelerator status: %s' % (str(self._status)))
return self._status
def _status_report(self):
debug_output('Reporting RFID status: %s' % (str(self._status)))
return self._status
def __init__(self, callable1, parent,
mode=None, bias=None, gain=None, boost=None):
""" Initialize the class: callable1 is a data buffer;
parent is the parent class"""
self.callable1 = callable1
self.parent = parent
self.sensor = None
self.temp_buffer = [0]
self.rate = RATE
# Force XO1 and XO4 to use just 1 channel
if self.parent.hw in [XO1, XO4]:
self.channels = 1
else:
self.channels = None
self._dc_control = None
self._mic_bias_control = None
self._capture_control = None
self._mic_boost_control = None
self._labels_available = True # Query controls for device names
self._query_mixer()
# If Channels was not found in the Capture controller, guess.
if self.channels is None:
debug_output('Guessing there are 2 channels',
self.parent.running_sugar)
self.channels = 2
# Set mixer to known state
self.set_dc_mode(DC_MODE_ENABLE)
self.set_bias(BIAS)
self.set_capture_gain(CAPTURE_GAIN)
self.set_mic_boost(MIC_BOOST)
self.master = self.get_master()
self.dc_mode = self.get_dc_mode()
self.bias = self.get_bias()
self.capture_gain = self.get_capture_gain()
self.mic_boost = self.get_mic_boost()
# Set mixer to desired state
self._set_sensor_type(mode, bias, gain, boost)
self.dc_mode = self.get_dc_mode()
self.bias = self.get_bias()
self.capture_gain = self.get_capture_gain()
self.mic_boost = self.get_mic_boost()
# Set up gstreamer pipeline
self._pad_count = 0
self.pads = []
self.queue = []
self.fakesink = []
self.pipeline = gst.Pipeline('pipeline')
self.alsasrc = gst.element_factory_make('alsasrc', 'alsa-source')
self.pipeline.add(self.alsasrc)
self.caps1 = gst.element_factory_make('capsfilter', 'caps1')
self.pipeline.add(self.caps1)
caps_str = 'audio/x-raw-int,rate=%d,channels=%d,depth=16' % (
RATE, self.channels)
self.caps1.set_property('caps', gst.caps_from_string(caps_str))
if self.channels == 1:
self.fakesink.append(gst.element_factory_make('fakesink', 'fsink'))
self.pipeline.add(self.fakesink[0])
self.fakesink[0].connect('handoff', self.on_buffer, 0)
self.fakesink[0].set_property('signal-handoffs', True)
gst.element_link_many(self.alsasrc, self.caps1, self.fakesink[0])
else:
if not hasattr(self, 'splitter'):
self.splitter = gst.element_factory_make('deinterleave')
self.pipeline.add(self.splitter)
self.splitter.set_properties('keep-positions=true', 'name=d')
self.splitter.connect('pad-added', self._splitter_pad_added)
gst.element_link_many(self.alsasrc, self.caps1, self.splitter)
for i in range(self.channels):
self.queue.append(gst.element_factory_make('queue'))
self.pipeline.add(self.queue[i])
self.fakesink.append(gst.element_factory_make('fakesink'))
self.pipeline.add(self.fakesink[i])
self.fakesink[i].connect('handoff', self.on_buffer, i)
self.fakesink[i].set_property('signal-handoffs', True)
self.dont_queue_the_buffer = False
# Timer for interval sampling and switch to indicate when to capture
self.capture_timer = None
self.capture_interval_sample = False
def __init__(self,
callable1,
parent,
mode=None,
bias=None,
gain=None,
boost=None):
""" Initialize the class: callable1 is a data buffer;
parent is the parent class"""
self.callable1 = callable1
self.parent = parent
self.sensor = None
self.temp_buffer = [0]
self.rate = RATE
# Force XO1 and XO4 to use just 1 channel
if self.parent.hw in [XO1, XO4]:
self.channels = 1
else:
self.channels = None
self._dc_control = None
self._mic_bias_control = None
self._capture_control = None
self._mic_boost_control = None
self._labels_available = True # Query controls for device names
self._query_mixer()
# If Channels was not found in the Capture controller, guess.
if self.channels is None:
debug_output('Guessing there are 2 channels',
self.parent.running_sugar)
self.channels = 2
# Set mixer to known state
self.set_dc_mode(DC_MODE_ENABLE)
self.set_bias(BIAS)
self.set_capture_gain(CAPTURE_GAIN)
self.set_mic_boost(MIC_BOOST)
self.master = self.get_master()
self.dc_mode = self.get_dc_mode()
self.bias = self.get_bias()
self.capture_gain = self.get_capture_gain()
self.mic_boost = self.get_mic_boost()
# Set mixer to desired state
self._set_sensor_type(mode, bias, gain, boost)
self.dc_mode = self.get_dc_mode()
self.bias = self.get_bias()
self.capture_gain = self.get_capture_gain()
self.mic_boost = self.get_mic_boost()
# Set up gstreamer pipeline
self._pad_count = 0
self.pads = []
self.queue = []
self.fakesink = []
self.pipeline = gst.Pipeline('pipeline')
self.alsasrc = gst.element_factory_make('alsasrc', 'alsa-source')
self.pipeline.add(self.alsasrc)
self.caps1 = gst.element_factory_make('capsfilter', 'caps1')
self.pipeline.add(self.caps1)
caps_str = 'audio/x-raw-int,rate=%d,channels=%d,depth=16' % (
RATE, self.channels)
self.caps1.set_property('caps', gst.caps_from_string(caps_str))
if self.channels == 1:
self.fakesink.append(gst.element_factory_make('fakesink', 'fsink'))
self.pipeline.add(self.fakesink[0])
self.fakesink[0].connect('handoff', self.on_buffer, 0)
self.fakesink[0].set_property('signal-handoffs', True)
gst.element_link_many(self.alsasrc, self.caps1, self.fakesink[0])
else:
if not hasattr(self, 'splitter'):
self.splitter = gst.element_factory_make('deinterleave')
self.pipeline.add(self.splitter)
self.splitter.set_properties('keep-positions=true', 'name=d')
self.splitter.connect('pad-added', self._splitter_pad_added)
gst.element_link_many(self.alsasrc, self.caps1, self.splitter)
for i in range(self.channels):
self.queue.append(gst.element_factory_make('queue'))
self.pipeline.add(self.queue[i])
self.fakesink.append(gst.element_factory_make('fakesink'))
self.pipeline.add(self.fakesink[i])
self.fakesink[i].connect('handoff', self.on_buffer, i)
self.fakesink[i].set_property('signal-handoffs', True)
self.dont_queue_the_buffer = False
# Timer for interval sampling and switch to indicate when to capture
self.capture_timer = None
self.capture_interval_sample = False
def _status_report(self):
debug_output(
'Reporting audio sensor status: %s' % (str(self._status)),
self._parent.running_sugar)
return self._status
def init_gconf(self):
try:
self.gconf_client = gconf.client_get_default()
except Exception, err:
debug_output(_('ERROR: cannot init GCONF client: %s') % err)
self.gconf_client = None