def get_alsa_mixers(self, cardid = 0, mixerid = None):
if config.disable_alsa:
return []
if cardid < len(alsaaudio.cards()):
if mixerid == None:
return alsaaudio.mixers(cardid)
elif mixerid < len(alsaaudio.mixers(cardid)):
return alsaaudio.mixers(cardid)[mixerid]
def is_alsa_device(self, device_name):
print 'MIXERS: %s' % alsaaudio.mixers() #show available mixer controls
if gv.IS_DEBIAN == False:
return
if device_name == 'bcm2835':
mixer_card_index = 0
else:
mixer_card_index = re.search(
'\(hw:(.*),',
device_name) # get x from (hw:x,y) in device name
print mixer_card_index
if mixer_card_index == None:
mixer_card_index = 0
else:
mixer_card_index = int(mixer_card_index.group(1))
available_mixer_types = alsaaudio.mixers(
) # returns a list of available mixer types. Usually only "PCM"
print "YAO CHUN LIN"
print available_mixer_types
for mixer_control in available_mixer_types:
print '>>>> Trying mixer control "%s"' % mixer_control
for mixer_id in range(0, 6):
try:
if self.alib == 1 or 'A2DP' in mixer_control:
amixer = alsaaudio.Mixer(control=mixer_control)
else:
amixer = alsaaudio.Mixer(id=mixer_id,
cardindex=mixer_card_index,
control=mixer_control)
print amixer.cardname()
del amixer # No use for amixer in this method. Create instance in start_alsa_mixer()
gv.USE_ALSA_MIXER = True
self.mixer_id = mixer_id
self.mixer_card_index = mixer_card_index # save the found value
self.mixer_control = mixer_control
print '>>>> Found ALSA device: card id "%i", control "%s"' % (
self.mixer_card_index, mixer_control)
return True
except Exception as e:
# gv.displayer.disp_change('Invalid mixerdev', line=2, timeout=0)
# print 'Invalid mixer card id "%i" or control "%s"' % (gv.MIXER_CARD_ID, gv.MIXER_CONTROL)
print 'Invalid mixer card id "%i" or control "%s"' % (
mixer_card_index, mixer_control)
# print 'Available devices (mixer card id is "x" in "(hw:x,y)" of device #%i):' % gv.AUDIO_DEVICE_ID
# print('Error on line {}'.format(sys.exc_info()[-1].tb_lineno), type(e), e)
print '>>>> This is not an ALSA compatible device'
gv.USE_ALSA_MIXER = False
return False
def __init__(self):
super().__init__()
all_mixers_list = alsaaudio.mixers()
self.__out = find_mixer(["Master", "PCM", "Speaker"], all_mixers_list)
self.__out.setvolume(MainLoader.get("MIXER_OUT", 100))
self.__in = find_mixer(["Mic"], all_mixers_list)
self.__in.setvolume(MainLoader.get("MIXER_IN", 50))
assert always_true("Found mixers:", alsaaudio.mixers(), str(self))
def get_mixer_name():
"""
:return: Mixer name : either the one in config.py, or if it doesn't exist the first in the list of available mixers
"""
if "AMIXER_CHANNEL" in app.config and app.config[
"AMIXER_CHANNEL"] in alsaaudio.mixers():
return app.config["AMIXER_CHANNEL"]
else:
# app.logger.info(alsaaudio.mixers())
return alsaaudio.mixers()[0]
def _read_config(self):
self.soundcard_name = g15gconf.get_string_or_default(self._gconf_client, \
self._gconf_key + "/soundcard", \
str(alsaaudio.cards()[0]))
self.soundcard_index = alsaaudio.cards().index(self.soundcard_name)
self.mixer_name = g15gconf.get_string_or_default(self._gconf_client, \
self._gconf_key + "/mixer", \
str(alsaaudio.mixers(self.soundcard_index)[0]))
if not self.mixer_name in alsaaudio.mixers(self.soundcard_index):
self.mixer_name = str(alsaaudio.mixers(self.soundcard_index)[0])
self._gconf_client.set_string(self._gconf_key + "/mixer", self.mixer_name)
def mic_loop():
# constants
samplerate = 44100
win_s = 2048
hop_s = win_s // 2
framesize = hop_s
print alsaaudio.cards()
print alsaaudio.mixers()
# set up audio input
recorder = alsaaudio.PCM(type=alsaaudio.PCM_CAPTURE)
#recorder = alsaaudio.PCM(type=PCM_CAPTURE, cardindex=1)
recorder.setperiodsize(framesize)
recorder.setrate(samplerate)
#recorder.setformat(alsaaudio.PCM_FORMAT_FLOAT_LE)
recorder.setchannels(1)
# create aubio pitch detection (first argument is method, "default" is
# "yinfft", can also be "yin", "mcomb", fcomb", "schmitt").
pitcher = aubio.pitch("default", win_s, hop_s, samplerate)
# set output unit (can be 'midi', 'cent', 'Hz', ...)
pitcher.set_unit("Hz")
# ignore frames under this level (dB)
pitcher.set_silence(-40)
print("Starting to listen, press Ctrl+C to stop")
count = 0
# main loop
while True:
# try:
# read data from audio input
_, data = recorder.read()
# convert data to aubio float samples
#samples = np.fromstring(data, dtype=aubio.float_type)
samples = np.fromstring(data, dtype=np.int16)
#print(len(samples),samples.min(),samples.max())
# pitch of current frame
#sample_test = np.hstack((samples,samples))
sample_test = np.array(samples, dtype=np.float32)
freq = pitcher(sample_test)[0]
# compute energy of current block
energy = np.sum(sample_test**2) / len(sample_test)
# do something with the results
if freq > 130 and freq < 200 and energy > 200000:
count = count + 1
if count > 1:
count = 0
people = 1
print("{:10.4f} {:10.4f}".format(freq, energy))
else:
people = 0
def get_cards(self):
""" Returns cards list """
cards = []
acards = alsa.cards()
for index, card in enumerate(acards):
try:
alsa.mixers(index)[0]
except Exception, err:
# card doesn't have any mixer control
cards.append(None)
print str(err)
else:
cards.append(acards[index])
def __init__(self, gpio, config):
self.gpio = gpio
try:
if len(alsaaudio.mixers()) > 0:
self.mixer = alsaaudio.Mixer(alsaaudio.mixers()[0])
else:
self.mixer = None
except alsaaudio.ALSAAudioError:
self.mixer = None
volumeSteps = json.loads(config['AUDIO']['VolumeSteps'])
self.volumeMap = dict(map(lambda item: (int(item[0]), item[1]), volumeSteps.items()))
self.reverseVolumeMap = dict(map(lambda item: (item[1], int(item[0])), volumeSteps.items()))
def _read_config(self):
self.soundcard_name = g15gconf.get_string_or_default(self._gconf_client, \
self._gconf_key + "/soundcard", \
str(alsaaudio.cards()[0]))
self.soundcard_index = alsaaudio.cards().index(self.soundcard_name)
self.mixer_name = g15gconf.get_string_or_default(self._gconf_client, \
self._gconf_key + "/mixer", \
str(alsaaudio.mixers(self.soundcard_index)[0]))
if not self.mixer_name in alsaaudio.mixers(self.soundcard_index):
self.mixer_name = str(alsaaudio.mixers(self.soundcard_index)[0])
self._gconf_client.set_string(self._gconf_key + "/mixer",
self.mixer_name)
def get_cards(self):
""" Returns cards list """
cards = []
acards = alsa.cards()
for index, card in enumerate(acards):
try:
alsa.mixers(index)[0]
except Exception, err:
# card doesn't have any mixer control
cards.append(None)
print str(err)
else:
cards.append(acards[index])
def SetOutputVolume(self, Volume, channel=None):
if 'PCM' in alsaaudio.mixers(device=self.hw):
mixer = alsaaudio.Mixer('PCM', device=self.hw)
elif 'Speaker' in alsaaudio.mixers(device=self.hw):
mixer = alsaaudio.Mixer('Speaker', device=self.hw)
else:
return False
vols = mixer.getvolume(alsaaudio.PCM_PLAYBACK)
if channel is None:
for i in range(len(vols)):
mixer.setvolume(Volume, i)
else:
mixer.setvolume(Volume, channel)
return True
def __init__(self, start_vol, vol_inc, clk, dt, btn, rot_type):
cardId = 0
self.startvol = start_vol
self.volinc = vol_inc
self.hasMute = True # Are we using the Digital control or the SoftMaster
self.isMute = False
self.clk = clk # First rotary pin
self.dt = dt # Second rotary pin
self.btn = btn # Button pin
self.rotary = None
# Is the rotary encoder keyes like i.e. pull down or standard i.e. pull up
if rot_type in ROTARY_TYPES:
self.rot_type = rot_type
print("Configuring rotary encoder as ", self.rot_type)
else:
print(rot_type, " is not a valid rotary encoder type")
exit()
# Finds the JustBoom card
for i in range(len(alsaaudio.cards())):
print(alsaaudio.cards()[i])
if (alsaaudio.cards()[i] == 'sndrpiboomberry'
or alsaaudio.cards()[i] == 'sndrpijustboomd'):
cardId = i
if 'Digital' in alsaaudio.mixers(cardId):
self.mixer = alsaaudio.Mixer(control='Digital',
cardindex=cardId)
self.hasMute = True
elif 'SoftMaster' in alsaaudio.mixers(cardId):
self.mixer = alsaaudio.Mixer(control='SoftMaster',
cardindex=cardId)
self.hasMute = False
else:
print("There are no suitable mixers")
exit()
self.rotary = Rotary(self.clk, self.dt, self.btn,
self.rotarychange, self.buttonpressed,
self.rot_type)
if self.rotary == None:
print("There are no suitable cards")
exit()
# Init the mqtt stuff
super().__init__()
self.connect(MQTT_HOST, MQTT_PORT, 60)
# With the # suffix we subscribe to all subtopics
self.subscribe(MQTT_COMMAND_TOPICS + "#")
def __init__(self):
os.putenv(
'SDL_FBDEV',
'/dev/fb1') # Route the output to framebuffer 1 (TFT display)
pygame.init()
pygame.font.init()
self.lcd = pygame.display.set_mode((320, 240))
pygame.mouse.set_visible(False)
pygame.key.set_repeat(500, 100)
self.dispWidth, self.dispHeight = pygame.display.get_surface(
).get_size()
self.font = pygame.font.Font("TerminusTTF-4.46.0.ttf", 18)
pygame.mixer.init()
pygame.mixer.music.set_volume(1.0)
self.alsa = alsaaudio.Mixer(alsaaudio.mixers()[0])
self.alsa.setvolume(self.volume)
# Load music
self.load()
# Initialize ADC
self.adc = Adafruit_ADS1x15.ADS1115()
# Set backlight pin as output and turn it on
GPIO.setwarnings(
False
) # disable warning because it is known that the pin is already set as output
GPIO.setmode(GPIO.BCM)
GPIO.setup(23, GPIO.OUT)
GPIO.output(23, GPIO.HIGH)
def __init__(self, parent=None, cp=None, card_index=0):
gtk.Window.__init__(self)
self.connect('destroy', self.close)
self.set_title('Select Controls')
self.set_transient_for(parent)
self.set_position(gtk.WIN_POS_CENTER_ON_PARENT)
self.set_border_width(10)
self.set_default_size(200, 300)
icon_theme = gtk.icon_theme_get_default()
self.set_icon_name("preferences-desktop")
self.cp = cp
self.main = parent
self.card_index = card_index
self.mixers = alsa.mixers(self.card_index)
try:
self.main.control_mask[self.card_index] = int(
self.cp.get("card-%d" % self.card_index, "mask_control"))
except:
self.main.control_mask[self.card_index] = 0
for count, mixer in enumerate(self.mixers):
self.main.control_mask[self.card_index] |= (1 << count)
self.set_layout()
def __init__(self, reverse, card, maxvol, vicons):
self.REVERSE_SCROLL = reverse
self.CARD = card
self.MAX_VOLUME = maxvol
self.VOLATILE_ICONS = vicons
self.MASTER = alsaaudio.mixers(self.CARD)[0]
self.PANEL_HEIGHT = 34 # in pixels, negative if panel is on bottom
self.WINDOW_OPACITY = 0.95 #
self.VOLUME_WIDTH = 200 # in pixels
self.VOLUME_HEIGHT = 25 # in pixels, adjust if the widget doesn't fit
self.SCROLL_BY = 3 # increase to scroll "faster"
self.VOLUME_MULTIPLIER = float(100) / self.MAX_VOLUME
if self.REVERSE_SCROLL:
self.SCROLL_BY *= -1
self.init_gtk()
self.init_alsa()
self.update()
self.icon.set_visible(True)
signal.signal(signal.SIGINT, gtk.main_quit)
gtk.main()
def getMixer(self):
i=0
selected=0
for z in reversed(alsaaudio.card_indexes()):
card = pulse.card_list()[i]
(name, longname) = alsaaudio.card_name(z)
if name == self.soundcards.currentText():
#pulse.card_profile_set(card, card.profile_list[self.selectedProfile])
self.selectedCard = card
selected = z
else:
pulse.card_profile_set(card, 'off')
i=i+1
self.cardmixer.clear()
current = 0
i = 0
for name in alsaaudio.mixers(selected):
#print(" '%s'" % name)
if self.settings["mixer"] == name:
current=i
self.parent.volume.setMixer(name)
self.cardmixer.addItem(name)
i=i+1
self.cardmixer.setCurrentIndex(current)
self.getProfile()
def set_volume(volume, pcm_type, nonlinear=False):
"""Change the mixer volume.
Parameters
----------
volume : float
New value between 0 and 1
pcm_type : int
0 for output (PCM_PLAYBACK), 1 for input (PCM_CAPTURE)
nonlinear : bool
if True, will apply to_mixer_volume
"""
if pcm_type == alsaaudio.PCM_PLAYBACK:
mixer_name = OUTPUT_VOLUME
elif pcm_type == alsaaudio.PCM_CAPTURE:
mixer_name = INPUT_VOLUME
else:
raise ValueError(f'Unsupported PCM {pcm_type}')
if mixer_name not in alsaaudio.mixers():
logger.error('Could not find mixer %s', mixer_name)
return
if nonlinear:
volume = to_mixer_volume(volume)
mixer_volume = min(100, max(0, round(volume * 100)))
mixer = alsaaudio.Mixer(mixer_name)
current_mixer_volume = mixer.getvolume(pcm_type)[0]
if mixer_volume == current_mixer_volume:
return
mixer.setvolume(mixer_volume)
def __init__(self, config):
super().__init__()
self.config = config
self.cardindex = self.config["alsamixer"]["card"]
self.control = self.config["alsamixer"]["control"]
self.min_volume = self.config["alsamixer"]["min_volume"]
self.max_volume = self.config["alsamixer"]["max_volume"]
self.volume_scale = self.config["alsamixer"]["volume_scale"]
known_cards = alsaaudio.cards()
try:
known_controls = alsaaudio.mixers(self.cardindex)
except alsaaudio.ALSAAudioError:
raise exceptions.MixerError(
f"Could not find ALSA soundcard with index {self.cardindex:d}. "
"Known soundcards include: "
f"{', '.join(known_cards)}"
)
if self.control not in known_controls:
raise exceptions.MixerError(
f"Could not find ALSA mixer control {self.control} on "
f"card {self.cardindex:d}. "
f"Known mixers on card {self.cardindex:d} include: "
f"{', '.join(known_controls)}"
)
self._last_volume = None
self._last_mute = None
logger.info(
f"Mixing using ALSA, card {self.cardindex:d}, "
f"mixer control {self.control!r}."
)
def __init__(self):
cards = aa.cards()
scarlett_index = None
for i in range(0, len(cards)):
if cards[i] == "USB":
# it's probably scarlett
scarlett_index = i
if not scarlett_index:
raise Exception("Couldn't find your scarlett usb device!")
else:
print "Found Scarlett at index {}".format(scarlett_index)
scarlett_mixers = aa.mixers(scarlett_index)
print "Found {} scarlett mixers".format(len(scarlett_mixers))
matricies, matrix_inputs, masters = unpackMixers(
scarlett_mixers, scarlett_index)
self.input_channels = []
for i in range(0, len(matricies)):
self.input_channels.append(
ScarlettInputChannel(matricies[i], matrix_inputs[i]))
self.loadPolls()
self.master_mixers = []
for output in masters:
input_controller = None
lr_mixers = {}
for con in masters[output]:
if len(masters[output][con].getenum()) == 0:
input_controller = masters[output][con]
else:
lr_mixers[con] = masters[output][con]
self.master_mixers.append(
ScarlettInputChannel(lr_mixers, input_controller))
def init_device(self):
device = None
for i, card in enumerate(alsaaudio.cards()):
if VOL_CTRL in alsaaudio.mixers(i):
device = i
break
self.device = device
def init_device(self):
device = None
for i, card in enumerate(alsaaudio.cards()):
if VOL_CTRL in alsaaudio.mixers(i):
device = i
break
self.device = device
def ls_cards_mixers():
""" List the availaible cards and mixers.
List all the available cards and all the usable mixers of each cards.
"""
global CARD_LIST
global MIXER_LIST
CARD_LIST = alsaaudio.cards()
for card_name in CARD_LIST:
MIXER_LIST[card_name] = {
'pretty_name':
"%s (hw:%i)" % (card_name, CARD_LIST.index(card_name)),
'mixers': [],
}
try:
for mixer_name in alsaaudio.mixers(CARD_LIST.index(card_name)):
mixer = alsaaudio.Mixer(control=mixer_name,
cardindex=CARD_LIST.index(card_name))
if len(mixer.volumecap()) > 0 and mixer.volumecap()[0] in \
("Volume", "Playback Volume", "Joined Playback Volume"):
try:
mixer.getvolume()
except alsaaudio.ALSAAudioError:
pass
else:
MIXER_LIST[card_name]['mixers'].append(mixer_name)
except alsaaudio.ALSAAudioError:
pass
def get_controls(driver, device):
"""Return a list of available controls on the device"""
if driver not in available_drivers:
raise MixerError("Invalid driver: '{0}'".format(str(driver)))
if driver == "ALSA":
# Convert device to index
dev = _alsa_device_to_idx(device)
# Filter out the controls that can't control the volume
valid = []
for c in alsaaudio.mixers():
try:
m = alsaaudio.Mixer(c, cardindex=dev)
if len(m.volumecap()) > 0:
valid.append(c)
m.close()
except alsaaudio.ALSAAudioError:
pass
elif driver == "OSS":
try:
om = ossaudiodev.openmixer(device)
except (IOError, ossaudiodev.OSSAudioError) as oe:
raise MixerError("Error opening mixer: {0}".format(str(oe)))
bitmask = om.controls()
om.close()
# Filter out unavailable controls
valid = [ossaudiodev.control_labels[c].rstrip() for
c in range(len(ossaudiodev.control_labels))
if bitmask & (1 << c)]
if len(valid) < 1:
raise MixerError("Could not find any controls for {0}".format(device))
else:
return valid
def default_control():
mixers = alsaaudio.mixers()
if len(mixers) > 0:
control = mixers.pop(0)
else:
control = 'Mixer'
return control
def __init__(self, config):
super(AlsaMixer, self).__init__()
self.config = config
self.card = self.config['alsamixer']['card']
self.control = self.config['alsamixer']['control']
known_cards = alsaaudio.cards()
if self.card >= len(known_cards):
raise exceptions.MixerError(
'Could not find ALSA soundcard with index %(card)d. '
'Known soundcards include: %(known_cards)s' % {
'card':
self.card,
'known_cards':
', '.join('%d (%s)' % (i, name)
for i, name in enumerate(known_cards)),
})
known_controls = alsaaudio.mixers(self.card)
if self.control not in known_controls:
raise exceptions.MixerError(
'Could not find ALSA mixer control %(control)s on '
'card %(card)d. Known mixers on card %(card)d include: '
'%(known_controls)s' % {
'control': self.control,
'card': self.card,
'known_controls': ', '.join(known_controls),
})
self._last_volume = None
self._last_mute = None
logger.info('Mixing using ALSA, card %d, mixer control "%s".',
self.card, self.control)
def __init__(self, parent=None, cp=None, card_index=0):
GObject.GObject.__init__(self)
self.connect('destroy', self.close)
self.set_title('Select Controls')
self.set_transient_for(parent)
self.set_position(Gtk.WindowPosition.CENTER_ON_PARENT)
self.set_border_width(10)
self.set_default_size(200, 300)
icon_theme = Gtk.IconTheme.get_default()
self.set_icon_name("preferences-desktop")
self.cp = cp
self.main = parent
self.card_index = card_index
self.mixers = alsa.mixers(self.card_index)
try:
self.main.control_mask[self.card_index] = int(
self.cp.get("card-%d" % self.card_index, "mask_control"))
except:
self.main.control_mask[self.card_index] = 0
for count, mixer in enumerate(self.mixers):
self.main.control_mask[self.card_index] |= (1 << count)
self.set_layout()
def get_volume(pcm, nonlinear=False):
"""Get the current mixer volume between 0 and 1.
Parameters
----------
pcm : int
0 for output (PCM_PLAYBACK), 1 for input (PCM_CAPTURE)
nonlinear : bool
if True, will apply to_perceived_volume
"""
if pcm == alsaaudio.PCM_PLAYBACK:
mixer_name = OUTPUT_VOLUME
elif pcm == alsaaudio.PCM_CAPTURE:
mixer_name = INPUT_VOLUME
else:
raise ValueError(f'Unsupported PCM {pcm}')
if mixer_name not in alsaaudio.mixers():
logger.error('Could not find mixer %s', mixer_name)
# might be due to configuration
return 100
mixer = alsaaudio.Mixer(mixer_name)
mixer_volume = mixer.getvolume(pcm)[0] / 100
if nonlinear:
return to_perceived_volume(mixer_volume)
return mixer_volume
def test_set_volume(self):
nameOfMixer = alsaaudio.mixers()[0]
assert (self.audioInstance.set_volume(0) == True)
mixer = alsaaudio.Mixer(nameOfMixer)
assert (mixer.getvolume() == [0, 0])
assert (self.audioInstance.set_volume(25) == True)
mixer = alsaaudio.Mixer(nameOfMixer)
assert (mixer.getvolume() == [25, 25])
assert (self.audioInstance.set_volume(50) == True)
mixer = alsaaudio.Mixer(nameOfMixer)
assert (mixer.getvolume() == [50, 50])
assert (self.audioInstance.set_volume(100) == True)
mixer = alsaaudio.Mixer(nameOfMixer)
assert (mixer.getvolume() == [100, 100])
assert (self.audioInstance.set_volume(101) == False)
mixer = alsaaudio.Mixer(nameOfMixer)
assert (mixer.getvolume() == [100, 100])
assert (self.audioInstance.set_volume(-1) == False)
mixer = alsaaudio.Mixer(nameOfMixer)
assert (mixer.getvolume() == [100, 100])
# To prevent my ears from being blasted after running the test suite
assert (self.audioInstance.set_volume(35) == True)
def set_mute(mixer_name, state):
"""Set if the mixer should be muted or not."""
if mixer_name not in alsaaudio.mixers():
logger.error('Could not find mixer %s', mixer_name)
return
mixer = alsaaudio.Mixer(mixer_name)
mixer.setmute(state)
def get_sound_cards():
soundcards = {}
for i in alsaaudio.card_indexes():
if 'PCM' in alsaaudio.mixers(**{'cardindex': i}):
(name, longname) = alsaaudio.card_name(i)
soundcards[name] = {'hwid': int(i), 'name': longname}
return soundcards
def __init__(self):
self._osd = OSDPercentage(font=FONT, colour="#6a5acd", timeout=3) # slate blue
kn = self._knob = PowerVolume()
kn.open()
kn.register_motion(self.change_volume)
kn.register_button(self.handle_button)
am = self._mixer = alsaaudio.Mixer(alsaaudio.mixers()[0]) # XXX
self._volume = am.getvolume()[0]
def _list_mixers():
num_cards = len(alsaaudio.cards())
for card in range(num_cards):
for mixername in alsaaudio.mixers(card):
mixer = alsaaudio.Mixer(control=mixername, cardindex=card)
if "Capture Mute" not in mixer.switchcap():
continue
yield (card, mixername)
def get_mixers(cardindex = 0):
'''
Get the names of all available mixers for an audio card
@param cardindex:int The index of the audio card
@return :list<str> The names of all available mixers for an audio card
'''
return alsaaudio.mixers(cardindex)
def __init__(self, control=None):
if alsaaudio is None:
LOG.error("pyalsaaudio not installed")
LOG.info("Run pip install pyalsaaudio==0.8.2")
raise ImportError
if control is None:
control = alsaaudio.mixers()[0]
self.get_mixer(control)
def getMixers(self):
'''
Returns a list of all mixers available (pcm, master, etc...)
@rtype: list
@return: mixers name available
'''
return alsaaudio.mixers()
def is_muted(mixer_name=OUTPUT_MUTE):
"""Figure out if the output is muted or not."""
if mixer_name not in alsaaudio.mixers():
logger.error('Could not find mixer %s', mixer_name)
return False
mixer = alsaaudio.Mixer(mixer_name)
return mixer.getmute()[0] == 1
def __init__(self):
self.mixerid = ''
for i in alsaaudio.mixers():
if i == 'Master' or i == 'PCM' or i == 'Speaker':
self.mixerid = i
if self.mixerid == '':
raise Exception('Cannot find mixer')
self.mixer = alsaaudio.Mixer(control=self.mixerid)
def testMixer(self):
"""Open a Mixer on every card"""
# Mixers are addressed by index, not name
for i in range(len(alsaaudio.cards())):
mixers = alsaaudio.mixers(i)
for m in mixers:
mixer = alsaaudio.Mixer(m, cardindex=i)
mixer.close()
def testMixer(self):
"""Open a Mixer on every card"""
# Mixers are addressed by index, not name
for i in range(len(alsaaudio.cards())):
mixers = alsaaudio.mixers(i)
for m in mixers:
mixer = alsaaudio.Mixer(m, cardindex=i)
mixer.close()
def changeVol(val):
mixer = alsaaudio.Mixer(alsaaudio.mixers()[0])
vol = mixer.getvolume()[0]
if val == 1:
vol = incrVol(mixer)
else:
vol = decrVol(mixer)
mixer.setvolume(vol)
print("volume set to", mixer.getvolume()[0])
def __init__(self, main):
"""Get names of equalizer channels if such.
"""
self.main = main
self.mixers = alsaaudio.mixers()
self.equal_channels = [] # names of equalizer channels if found
self.init_equal_channels()
def testMixer(self):
"""Open the default Mixers and the Mixers on every card"""
for c in alsaaudio.card_indexes():
mixers = alsaaudio.mixers(cardindex=c)
for m in mixers:
mixer = alsaaudio.Mixer(m, cardindex=c)
mixer.close()
def _get_mixer_control(self):
"""Returns the first mixer control candidate that is known to ALSA"""
candidates = self._get_mixer_control_candidates()
for control in candidates:
if control in alsaaudio.mixers():
logger.info(u"Mixer control in use: %s", control)
return control
else:
logger.debug(u"Mixer control not found, skipping: %s", control)
logger.warning(u"No working mixer controls found. Tried: %s", candidates)
def set_volume(card="", mixeridx=0, channel=0, value=50, direction='playback'):
# channel = alsaaudio.MIXER_CHANNEL_ALL
devices = alsaaudio.cards()
try:
idx = devices.index(card)
except ValueError:
idx = 0
mixers = alsaaudio.mixers(idx)
mixer = alsaaudio.Mixer(mixers[int(mixeridx)], cardindex=idx)
mixer.setvolume(int(value), int(channel), direction)
return ""
def audio_env():
"""Display the cards and mixers in the audio subsystem."""
list_of_cards = alsaaudio.cards()
num_cards = len(list_of_cards)
logger.debug('audio_env %s %s %s', num_cards, ' cards found: ', list_of_cards)
logger.debug('audio_env %s %s', 'mixers =', alsaaudio.mixers() )
for index in range(num_cards):
logger.debug('audio_env %s %s %s %s', 'card =', list_of_cards[index], 'mixer =', alsaaudio
.mixers(
index))
def get_channels(self, card_index):
try:
self.alsa_channels[card_index] = []
for channel in alsa.mixers(card_index):
id = 0
while (channel, id) in self.alsa_channels[card_index]:
id += 1
mixer = alsa.Mixer(channel, id, card_index)
if len(mixer.volumecap()):
self.alsa_channels[card_index].append((channel, id))
except:
pass
def show_preferences(parent, driver, gconf_client, gconf_key):
def refresh_devices(widget):
new_soundcard_name = soundcard_model[widget.get_active()][0]
new_soundcard_index = alsa_soundcards.index(new_soundcard_name)
'''
We temporarily block the handler for the mixer_combo 'changed' signal, since we are going
to change the combobox contents.
'''
mixer_combo.handler_block(changed_handler_id)
mixer_model.clear()
for mixer in alsaaudio.mixers(new_soundcard_index):
mixer_model.append([mixer])
# Now we can unblock the handler
mixer_combo.handler_unblock(changed_handler_id)
# And since the list of mixers has changed, we select the first one by default
mixer_combo.set_active(0)
widget_tree = gtk.Builder()
widget_tree.add_from_file(os.path.join(os.path.dirname(__file__), "volume.ui"))
dialog = widget_tree.get_object("VolumeDialog")
soundcard_combo = widget_tree.get_object('SoundcardCombo')
mixer_combo = widget_tree.get_object('MixerCombo')
soundcard_model = widget_tree.get_object("SoundcardModel")
mixer_model = widget_tree.get_object("MixerModel")
alsa_soundcards = alsaaudio.cards()
soundcard_name = g15gconf.get_string_or_default(gconf_client,
gconf_key + "/soundcard",
str(alsa_soundcards[0]))
soundcard_index = alsa_soundcards.index(soundcard_name)
soundcard_mixers = alsaaudio.mixers(soundcard_index)
for card in alsa_soundcards:
soundcard_model.append([card])
for mixer in soundcard_mixers:
mixer_model.append([mixer])
g15uigconf.configure_combo_from_gconf(gconf_client, \
gconf_key + "/soundcard", \
"SoundcardCombo", \
str(alsa_soundcards[0]), \
widget_tree)
changed_handler_id = g15uigconf.configure_combo_from_gconf(gconf_client, \
gconf_key + "/mixer", \
"MixerCombo", \
str(soundcard_mixers[0]), \
widget_tree)
soundcard_combo.connect('changed', refresh_devices)
dialog.set_transient_for(parent)
dialog.run()
dialog.hide()
def testMixerClose(self):
"Run common Mixer methods on a closed object and verify it raises an error"
mixers = alsaaudio.mixers()
mixer = alsaaudio.Mixer(mixers[0])
mixer.close()
for m, a in MixerMethods:
f = alsaaudio.Mixer.__dict__[m]
if a is None:
self.assertRaises(alsaaudio.ALSAAudioError, f, mixer)
else:
self.assertRaises(alsaaudio.ALSAAudioError, f, mixer, *a)
def mute(direction="playback", card="", mixeridx=0, channel=0, value=0):
devices = alsaaudio.cards()
try:
idx = devices.index(card)
except ValueError:
idx = 0
mixers = alsaaudio.mixers(idx)
mixer = alsaaudio.Mixer(mixers[int(mixeridx)], cardindex=idx)
if direction == "playback":
mixer.setmute(int(value), int(channel))
else:
mixer.setrec(int(value), int(channel))
return ""
def testMixer(self):
"""Open the default Mixers and the Mixers on every card"""
for d in ['default'] + list(range(len(alsaaudio.cards()))):
if type(d) == type(0):
kwargs = { 'cardindex': d }
else:
kwargs = { 'device': d }
mixers = alsaaudio.mixers(**kwargs)
for m in mixers:
mixer = alsaaudio.Mixer(m, **kwargs)
mixer.close()
def testMixerAll(self):
"Run common Mixer methods on an open object"
mixers = alsaaudio.mixers()
mixer = alsaaudio.Mixer(mixers[0])
for m, a in MixerMethods:
f = alsaaudio.Mixer.__dict__[m]
if a is None:
f(mixer)
else:
f(mixer, *a)
mixer.close()
def alsa(card="ALSA"):
devices = alsaaudio.cards()
try:
idx=devices.index(card)
except ValueError:
card = "ALSA"
idx=devices.index(card)
mixers = alsaaudio.mixers(idx)
volumes = {}
for i in range(len(mixers)):
mixer = alsaaudio.Mixer(mixers[i], cardindex=idx)
volumes[mixers[i]] = {'levels': mixer.getvolume(), 'mutes': mixer.getmute()}
return render_template('alsa.html', devices=devices, volumes=volumes)
def __callback_options(self, widget):
self.__clean()
mixers = alsaaudio.mixers() # List of channels
for m in mixers:
cb = gtk.CheckButton(m)
active = self.__channels.count(m + "\n") > 0
cb.set_active(active)
# TODO make the tick boxes bigger
self.__sldvbox.pack_start(cb, False, True, 0)
cb.show()
# Change which buttons are visible
self.__buttonE.hide()
self.__buttonO.hide()
self.__buttonS.show()
self.__buttonC.show()
def _find_suitable_mixers(self, card_index = -1):
mic = None
speaker = None
if card_index < 0:
for card_index in range(0, Alsa.CARD_INDICES_TO_TRY):
try:
mixers = alsaaudio.mixers(cardindex = card_index)
if 'Mic' in mixers and 'Speaker' in mixers:
mic = alsaaudio.Mixer(control = 'Mic', cardindex = card_index)
speaker = alsaaudio.Mixer(control = 'Speaker', cardindex = card_index)
break
except Exception:
pass
else:
mixers = alsaaudio.mixers(cardindex = card_index)
if 'Mic' in mixers and 'Speaker' in mixers:
mic = alsaaudio.Mixer(control = 'Mic', cardindex = card_index)
speaker = alsaaudio.Mixer(control = 'Speaker', cardindex = card_index)
return speaker, mic
def refresh_devices(widget):
new_soundcard_name = soundcard_model[widget.get_active()][0]
new_soundcard_index = alsa_soundcards.index(new_soundcard_name)
'''
We temporarily block the handler for the mixer_combo 'changed' signal, since we are going
to change the combobox contents.
'''
mixer_combo.handler_block(changed_handler_id)
mixer_model.clear()
for mixer in alsaaudio.mixers(new_soundcard_index):
mixer_model.append([mixer])
# Now we can unblock the handler
mixer_combo.handler_unblock(changed_handler_id)
# And since the list of mixers has changed, we select the first one by default
mixer_combo.set_active(0)
def get_mixers(card_index=0):
""" Returns mixers list """
mixers_tmp = []
mixers_params = []
for control in alsa.mixers(card_index):
cid = mixers_tmp.count(control)
mixer = MixerChannel(card_index, control, cid)
cap = mixer.get_volumecap()
if ( cap ):
#if 'Playback Volume' in cap or 'Joined Volume' in cap:
item = [control, cid]
mixers_params.append(item)
mixers_tmp.append(control)
del mixer
return mixers_params
def volume(self, relativeVolume):
try:
mixer = alsaaudio.Mixer(self.mixerControl, self.mixerId, self.mixerCardIdx)
vol = mixer.getvolume()
logging.debug('Current alsa volume: {}'.format(vol))
vol[0] += relativeVolume
vol[0] = max(0, min(vol[0], 100))
mixer.setvolume(vol[0])
return vol[0]
except alsaaudio.ALSAAudioError:
logging.error('No mixer found for Control: {} ID:{} Card: {}'.format(self.mixerControl, self.mixerId, self.mixerCardIdx))
cards = alsaaudio.cards()
logging.debug('Available cards: {}'.format(cards))
mixers = alsaaudio.mixers(self.mixerCardIdx)
logging.debug('Available mixer card {}: {}'.format(self.mixerCardIdx, mixers))
return 0
def __init__(self, plugin, bar):
UI.PopupWindow.__init__(self, bar, plugin)
self.card_index = int(plugin.settings["card_index"])
self.control = plugin.settings["control"]
try:
self.mixer = alsa.Mixer(control=self.control, cardindex=self.card_index)
except Exception, err:
print "Mixer plugin ERR:", err
try:
self.mixer = alsa.Mixer(control=alsa.mixers(self.card_index).get_mixers()[0], cardindex=self.card_index)
except Exception, err:
print "Mixer plugin ERR:", err
self.mixer = None
self.set_volume(0)
def get_mixer_list(self):
""" Append to mixer list, mixers with equal names
are grouped and controlled together. """
mixerlist = []
for mixer in alsa.mixers(self.card_index):
try:
if mixer not in mixerlist:
mixerlist.append(mixer)
seq = 0
else:
seq += 1
if self.control == mixer:
m = alsa.Mixer(control=mixer,
cardindex=self.card_index, id=seq)
self.mixerlist.append(m)
except alsa.ALSAAudioError:
pass
def index(card=""):
settings = Settings.query.get(1)
if settings:
card = settings.device
playbacks = {}
captures = {}
devices = alsaaudio.cards()
try:
idx = devices.index(card)
except ValueError:
return render_template('mixers/device_error.html')
try:
mixers = alsaaudio.mixers(idx)
except:
devices = {"No ALSA Device detected"}
return render_template('mixers/index.html', devices=devices,
playbacks=playbacks, captures=captures)
for i in range(len(mixers)):
mixer = alsaaudio.Mixer(mixers[i], cardindex=idx)
try:
mutes = mixer.getmute()
except alsaaudio.ALSAAudioError:
mutes = {}
try:
getrecs = mixer.getrec()
except alsaaudio.ALSAAudioError:
getrecs = {}
if mixer.getvolume('playback'):
playbacks[mixers[i]] = {'mixer': i,
'levels': mixer.getvolume('playback'),
'mutes': mutes}
if mixer.getvolume('capture'):
captures[mixers[i]] = {'mixer': i,
'levels': mixer.getvolume('capture'),
'mutes': getrecs}
return render_template('mixers/index.html',
devices=devices,
playbacks=playbacks,
captures=captures,
card=card)
