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#! /usr/bin/python
# -*- Python -*-
import sys
sys.path.insert(0, '../pyalsa')
del sys
from pyalsa import alsamixer
import select
def parse_event_mask(events):
if events == 0:
return 'None'
if events == alsamixer.event_mask_remove:
return 'Removed'
s = ''
for i in alsamixer.event_mask.keys():
if events & alsamixer.event_mask[i]:
s += '%s ' % i
return s[:-1]
def event_callback(element, events):
print('CALLBACK (DEF)! [%s] %s:%i' % (parse_event_mask(events), element.name, element.index))
print(' ', element.get_volume_tuple(), element.get_switch_tuple())
class MyElementEvent:
def callback(self, element, events):
print('CALLBACK (CLASS)! [%s] %s:%i' % (parse_event_mask(events), element.name, element.index))
print(' ', element.get_volume_tuple(), element.get_switch_tuple())
mixer = alsamixer.Mixer()
mixer.attach()
mixer.load()
element1 = alsamixer.Element(mixer, "Front")
element1.set_callback(event_callback)
element2 = alsamixer.Element(mixer, "PCM")
element2.set_callback(MyElementEvent())
poller = select.poll()
mixer.register_poll(poller)
while True:
poller.poll()
print('Poll OK!')
mixer.handle_events()
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