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#!/usr/bin/python
# vi: et sw=2
#
# PulseVolume.py
# Copyright (C) 2009 Harry Karvonen
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
#
# Author: Harry Karvonen <harry.karvonen@gmail.com>
#
from lib_pulseaudio import *
import math
# This contains all basic volume features
class PulseVolume:
def __init__(self, vol = 0, channels = 2):
self.channels = channels
if vol > 100 or vol < 0:
print "WARNING: Volume is invalid!"
vol = 0
self.values = [vol] * self.channels
return
##############################
#
# Type conversions
#
#def fromCtypes(self, pa_cvolume):
# self.channels = pa_cvolume.channels
# self.values = map(lambda x: (math.ceil(float(x) * 100 / PA_VOLUME_NORM)),
# pa_cvolume.values[0:self.channels])
# return self
def toCtypes(self):
ct = PA_CVOLUME()
ct.channels = self.channels
for x in range(0, self.channels):
ct.values[x] = (self.values[x] * PA_VOLUME_NORM) / 100
return ct
###
def printDebug(self):
print "PulseVolume"
print "self.channels:", self.channels
print "self.values:", self.values
#print "self.proplist:", self.proplist
###
def incVolume(self, vol):
"Increment volume level (mono only)"
vol += sum(self.values) / len(self.values)
vol = int(vol)
if vol > 100:
vol = 100
elif vol < 0:
vol = 0
self.setVolume(vol)
return
###
def setVolume(self, vol, balance = None):
if not balance:
self.values = [vol] * self.channels
else:
self.values[balance] = vol
return
###
def getVolume(self):
"Return mono volume"
return int(sum(self.values) / len(self.values))
###
def __str__(self):
return "Channels: " + str(self.channels) + \
", values: \"" + str(map(lambda x: str(x) + "%", self.values)) + "\""
################################################################################
class PulseVolumeCtypes(PulseVolume):
def __init__(self, pa_cvolume):
self.channels = pa_cvolume.channels
self.values = map(lambda x: (math.ceil(float(x) * 100 / PA_VOLUME_NORM)),
pa_cvolume.values[0:self.channels])
return
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