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authorJason Newton <nevion@gmail.com>2009-11-20 14:56:07 -0800
committerJason Newton <nevion@gmail.com>2009-11-20 14:56:07 -0800
commit41853cc7c01d3b400e781bb9db8c09befd04685b (patch)
treefe38015b4f0d763c3199ea663c4da3ecb6d1f1d0
parent493d8b2fb7915786578daeb9dba9c55b581fcce1 (diff)
added qpaeq script for GUI equalizer control to src/util
-rwxr-xr-xsrc/utils/qpaeq.py546
1 files changed, 546 insertions, 0 deletions
diff --git a/src/utils/qpaeq.py b/src/utils/qpaeq.py
new file mode 100755
index 000000000..dca0701d0
--- /dev/null
+++ b/src/utils/qpaeq.py
@@ -0,0 +1,546 @@
+#!/usr/bin/env python
+# qpaeq is a equalizer interface for pulseaudio's equalizer sinks
+# Copyright (C) 2009 Jason Newton <nevion@gmail.com
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+import os,math,sys
+import PyQt4,sip
+from PyQt4 import QtGui,QtCore
+from functools import partial
+
+import dbus.mainloop.qt
+import dbus
+
+import signal
+signal.signal(signal.SIGINT, signal.SIG_DFL)
+SYNC_TIMEOUT = 4*1000
+
+CORE_PATH = "/org/pulseaudio/core1"
+CORE_IFACE = "org.PulseAudio.Core1"
+def connect():
+ if 'PULSE_DBUS_SERVER' in os.environ:
+ address = os.environ['PULSE_DBUS_SERVER']
+ else:
+ bus = dbus.SessionBus() # Should be UserBus, but D-Bus doesn't implement that yet.
+ server_lookup = bus.get_object('org.PulseAudio1', '/org/pulseaudio/server_lookup1')
+ address = server_lookup.Get('org.PulseAudio.ServerLookup1', 'Address', dbus_interface='org.freedesktop.DBus.Properties')
+ return dbus.connection.Connection(address)
+
+
+#TODO: signals: sink Filter changed, sink reconfigured (window size) (sink iface)
+#TODO: manager signals: new sink, removed sink, new profile, removed profile
+#TODO: add support for changing of window_size 1000-fft_size (adv option)
+#TODO: reconnect support loop 1 second trying to reconnect
+#TODO: just resample the filters for profiles when loading to different sizes
+#TODO: add preamp
+prop_iface='org.freedesktop.DBus.Properties'
+eq_iface='org.PulseAudio.Ext.Equalizing1.Equalizer'
+device_iface='org.PulseAudio.Core1.Device'
+class QPaeq(QtGui.QWidget):
+ manager_path='/org/pulseaudio/equalizing1'
+ manager_iface='org.PulseAudio.Ext.Equalizing1.Manager'
+ core_iface='org.PulseAudio.Core1'
+ core_path='/org/pulseaudio/core1'
+ def __init__(self):
+ QtGui.QWidget.__init__(self)
+ self.setWindowTitle('qpaeq')
+ self.slider_widget=None
+ self.sink_name=None
+ self.filter_state=None
+
+ self.create_layout()
+
+ self.set_connection()
+ self.connect_to_sink(self.sinks[0])
+ self.set_callbacks()
+ self.setMinimumSize(self.sizeHint())
+
+ def create_layout(self):
+ self.main_layout=QtGui.QVBoxLayout()
+ self.setLayout(self.main_layout)
+ toprow_layout=QtGui.QHBoxLayout()
+ sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Preferred, QtGui.QSizePolicy.Fixed)
+ sizePolicy.setHorizontalStretch(0)
+ sizePolicy.setVerticalStretch(0)
+ #sizePolicy.setHeightForWidth(self.profile_box.sizePolicy().hasHeightForWidth())
+
+ toprow_layout.addWidget(QtGui.QLabel('Sink'))
+ self.sink_box = QtGui.QComboBox()
+ self.sink_box.setSizePolicy(sizePolicy)
+ self.sink_box.setDuplicatesEnabled(False)
+ self.sink_box.setInsertPolicy(QtGui.QComboBox.InsertAlphabetically)
+ #self.sink_box.setSizeAdjustPolicy(QtGui.QComboBox.AdjustToContents)
+ toprow_layout.addWidget(self.sink_box)
+
+ toprow_layout.addWidget(QtGui.QLabel('Channel'))
+ self.channel_box = QtGui.QComboBox()
+ self.channel_box.setSizePolicy(sizePolicy)
+ toprow_layout.addWidget(self.channel_box)
+
+ toprow_layout.addWidget(QtGui.QLabel('Preset'))
+ self.profile_box = QtGui.QComboBox()
+ self.profile_box.setSizePolicy(sizePolicy)
+ self.profile_box.setInsertPolicy(QtGui.QComboBox.InsertAlphabetically)
+ #self.profile_box.setSizeAdjustPolicy(QtGui.QComboBox.AdjustToContents)
+ toprow_layout.addWidget(self.profile_box)
+
+ large_icon_size=self.style().pixelMetric(QtGui.QStyle.PM_LargeIconSize)
+ large_icon_size=QtCore.QSize(large_icon_size,large_icon_size)
+ save_profile=QtGui.QToolButton()
+ save_profile.setIcon(self.style().standardIcon(QtGui.QStyle.SP_DriveFDIcon))
+ save_profile.setIconSize(large_icon_size)
+ save_profile.setToolButtonStyle(QtCore.Qt.ToolButtonIconOnly)
+ save_profile.clicked.connect(self.save_profile)
+ remove_profile=QtGui.QToolButton()
+ remove_profile.setIcon(self.style().standardIcon(QtGui.QStyle.SP_TrashIcon))
+ remove_profile.setIconSize(large_icon_size)
+ remove_profile.setToolButtonStyle(QtCore.Qt.ToolButtonIconOnly)
+ remove_profile.clicked.connect(self.remove_profile)
+ toprow_layout.addWidget(save_profile)
+ toprow_layout.addWidget(remove_profile)
+
+ reset_button = QtGui.QPushButton('Reset')
+ reset_button.clicked.connect(self.reset)
+ toprow_layout.addStretch()
+ toprow_layout.addWidget(reset_button)
+ self.layout().addLayout(toprow_layout)
+
+ self.profile_box.activated.connect(self.load_profile)
+ self.channel_box.activated.connect(self.select_channel)
+ def connect_to_sink(self,name):
+ #TODO: clear slots for profile buttons
+
+ #flush any pending saves for other sinks
+ if self.filter_state is not None:
+ self.filter_state.flush_state()
+ sink=self.connection.get_object(object_path=name)
+ self.sink_props=dbus.Interface(sink,dbus_interface=prop_iface)
+ self.sink=dbus.Interface(sink,dbus_interface=eq_iface)
+ self.filter_state=FilterState(sink)
+ #sample_rate,filter_rate,channels,channel)
+
+ self.channel_box.clear()
+ self.channel_box.addItem('All',self.filter_state.channels)
+ for i in xrange(self.filter_state.channels):
+ self.channel_box.addItem('%d' %(i+1,),i)
+ self.setMinimumSize(self.sizeHint())
+
+ self.set_slider_widget(SliderArray(self.filter_state))
+
+ self.sink_name=name
+ #set the signal listener for this sink
+ core=self._get_core()
+ #temporary hack until signal filtering works properly
+ core.ListenForSignal('',[dbus.ObjectPath(self.sink_name),dbus.ObjectPath(self.manager_path)])
+ #for x in ['FilterChanged']:
+ # core.ListenForSignal("%s.%s" %(self.eq_iface,x),[dbus.ObjectPath(self.sink_name)])
+ #core.ListenForSignal(self.eq_iface,[dbus.ObjectPath(self.sink_name)])
+ self.sink.connect_to_signal('FilterChanged',self.read_filter)
+
+ def set_slider_widget(self,widget):
+ layout=self.layout()
+ if self.slider_widget is not None:
+ i=layout.indexOf(self.slider_widget)
+ layout.removeWidget(self.slider_widget)
+ self.slider_widget.deleteLater()
+ layout.insertWidget(i,self.slider_widget)
+ else:
+ layout.addWidget(widget)
+ self.slider_widget=widget
+ self.read_filter()
+ def _get_core(self):
+ core_obj=self.connection.get_object(object_path=self.core_path)
+ core=dbus.Interface(core_obj,dbus_interface=self.core_iface)
+ return core
+ def sink_added(self,sink):
+ #TODO: preserve selected sink
+ self.update_sinks()
+ def sink_removed(self,sink):
+ #TODO: preserve selected sink, try connecting to backup otherwise
+ if sink==self.sink_name:
+ #connect to new sink?
+ pass
+ self.update_sinks()
+ def save_profile(self):
+ #popup dialog box for name
+ current=self.profile_box.currentIndex()
+ profile,ok=QtGui.QInputDialog.getItem(self,'Preset Name','Preset',self.profiles,current)
+ if not ok or profile=='':
+ return
+ if profile in self.profiles:
+ mbox=QtGui.QMessageBox(self)
+ mbox.setText('%s preset already exists'%(profile,))
+ mbox.setInformativeText('Do you want to save over it?')
+ mbox.setStandardButtons(mbox.Save|mbox.Discard|mbox.Cancel)
+ mbox.setDefaultButton(mbox.Save)
+ ret=mbox.exec_()
+ if ret!=mbox.Save:
+ return
+ self.sink.SaveProfile(self.filter_state.channel,dbus.String(profile))
+ if self.filter_state.channel==self.filter_state.channels:
+ for x in range(1,self.filter_state.channels):
+ self.sink.LoadProfile(x,dbus.String(profile))
+ def remove_profile(self):
+ #find active profile name, remove it
+ profile=self.profile_box.currentText()
+ manager=dbus.Interface(self.manager_obj,dbus_interface=self.manager_iface)
+ manager.RemoveProfile(dbus.String(profile))
+ def load_profile(self,x):
+ profile=self.profile_box.itemText(x)
+ self.filter_state.load_profile(profile)
+ def select_channel(self,x):
+ self.filter_state.channel = self.channel_box.itemData(x).toPyObject()
+ self._set_profile_name()
+ self.filter_state.readback()
+
+ #TODO: add back in preamp!
+ #print frequencies
+ #main_layout.addLayout(self.create_slider(partial(self.update_coefficient,0),
+ # 'Preamp')[0]
+ #)
+ def set_connection(self):
+ self.connection=connect()
+ self.manager_obj=self.connection.get_object(object_path=self.manager_path)
+ manager_props=dbus.Interface(self.manager_obj,dbus_interface=prop_iface)
+ self.sinks=manager_props.Get(self.manager_iface,'EqualizedSinks')
+ def set_callbacks(self):
+ manager=dbus.Interface(self.manager_obj,dbus_interface=self.manager_iface)
+ manager.connect_to_signal('ProfilesChanged',self.update_profiles)
+ manager.connect_to_signal('SinkAdded',self.sink_added)
+ manager.connect_to_signal('SinkRemoved',self.sink_removed)
+ #self._get_core().ListenForSignal(self.manager_iface,[])
+ #self._get_core().ListenForSignal(self.manager_iface,[dbus.ObjectPath(self.manager_path)])
+ #core=self._get_core()
+ #for x in ['ProfilesChanged','SinkAdded','SinkRemoved']:
+ # core.ListenForSignal("%s.%s" %(self.manager_iface,x),[dbus.ObjectPath(self.manager_path)])
+ self.update_profiles()
+ self.update_sinks()
+ def update_profiles(self):
+ #print 'update profiles called!'
+ manager_props=dbus.Interface(self.manager_obj,dbus_interface=prop_iface)
+ self.profiles=manager_props.Get(self.manager_iface,'Profiles')
+ self.profile_box.blockSignals(True)
+ self.profile_box.clear()
+ self.profile_box.addItems(self.profiles)
+ self.profile_box.blockSignals(False)
+ self._set_profile_name()
+ def update_sinks(self):
+ self.sink_box.blockSignals(True)
+ self.sink_box.clear()
+ for x in self.sinks:
+ sink=self.connection.get_object(object_path=x)
+ sink_props=dbus.Interface(sink,dbus_interface=prop_iface)
+ simple_name=sink_props.Get(device_iface,'Name')
+ self.sink_box.addItem(simple_name,x)
+ self.sink_box.blockSignals(False)
+ self.sink_box.setMinimumSize(self.sink_box.sizeHint())
+ def read_filter(self):
+ #print self.filter_frequencies
+ self.filter_state.readback()
+ def reset(self):
+ coefs=dbus.Array([1/math.sqrt(2.0)]*(self.filter_state.filter_rate//2+1))
+ preamp=1.0
+ self.filter_state.set_filter(preamp,coefs)
+ def _set_profile_name(self):
+ self.profile_box.blockSignals(True)
+ profile_name=self.sink.BaseProfile(self.filter_state.channel)
+ if profile_name is not None:
+ i=self.profile_box.findText(profile_name)
+ if i>=0:
+ self.profile_box.setCurrentIndex(i)
+ self.profile_box.blockSignals(False)
+
+
+class SliderArray(QtGui.QWidget):
+ def __init__(self,filter_state,parent=None):
+ super(SliderArray,self).__init__(parent)
+ #self.setStyleSheet('padding: 0px; border-width: 0px; margin: 0px;')
+ #self.setStyleSheet('font-size: 7pt; font-family: monospace;'+outline%('blue'))
+ self.filter_state=filter_state
+ self.setLayout(QtGui.QHBoxLayout())
+ self.sub_array=None
+ self.set_sub_array(SliderArraySub(self.filter_state))
+ self.inhibit_resize=0
+ def set_sub_array(self,widget):
+ if self.sub_array is not None:
+ self.layout().removeWidget(self.sub_array)
+ self.sub_array.disconnect_signals()
+ self.sub_array.deleteLater()
+ self.sub_array=widget
+ self.layout().addWidget(self.sub_array)
+ self.sub_array.connect_signals()
+ self.filter_state.readback()
+ def resizeEvent(self,event):
+ super(SliderArray,self).resizeEvent(event)
+ if self.inhibit_resize==0:
+ self.inhibit_resize+=1
+ #self.add_sliders_to_fit()
+ t=QtCore.QTimer(self)
+ t.setSingleShot(True)
+ t.setInterval(0)
+ t.timeout.connect(partial(self.add_sliders_to_fit,event))
+ t.start()
+ def add_sliders_to_fit(self,event):
+ if event.oldSize().width()>0 and event.size().width()>0:
+ i=len(self.filter_state.frequencies)*int(round(float(event.size().width())/event.oldSize().width()))
+ else:
+ i=len(self.filter_state.frequencies)
+
+ t_w=self.size().width()
+ def evaluate(filter_state, target, variable):
+ base_freqs=self.filter_state.freq_proper(self.filter_state.DEFAULT_FREQUENCIES)
+ filter_state._set_frequency_values(subdivide(base_freqs,variable))
+ new_widget=SliderArraySub(filter_state)
+ w=new_widget.sizeHint().width()
+ return w-target
+ def searcher(initial,evaluator):
+ i=initial
+ def d(e): return 1 if e>=0 else -1
+ error=evaluator(i)
+ old_direction=d(error)
+ i-=old_direction
+ while True:
+ error=evaluator(i)
+ direction=d(error)
+ if direction!=old_direction:
+ k=i-1
+ #while direction<0 and error!=0:
+ # k-=1
+ # error=evaluator(i)
+ # direction=d(error)
+ return k, evaluator(k)
+ i-=direction
+ old_direction=direction
+ searcher(i,partial(evaluate,self.filter_state,t_w))
+ self.set_sub_array(SliderArraySub(self.filter_state))
+ self.inhibit_resize-=1
+
+class SliderArraySub(QtGui.QWidget):
+ def __init__(self,filter_state,parent=None):
+ super(SliderArraySub,self).__init__(parent)
+ self.filter_state=filter_state
+ self.setLayout(QtGui.QGridLayout())
+ self.slider=[None]*len(self.filter_state.frequencies)
+ self.label=[None]*len(self.slider)
+ #self.setStyleSheet('padding: 0px; border-width: 0px; margin: 0px;')
+ #self.setStyleSheet('font-size: 7pt; font-family: monospace;'+outline%('blue'))
+ qt=QtCore.Qt
+ #self.layout().setHorizontalSpacing(1)
+ def add_slider(slider,label, c):
+ self.layout().addWidget(slider,0,c,qt.AlignHCenter)
+ self.layout().addWidget(label,1,c,qt.AlignHCenter)
+ self.layout().setColumnMinimumWidth(c,max(label.sizeHint().width(),slider.sizeHint().width()))
+ def create_slider(slider_label):
+ slider=QtGui.QSlider(QtCore.Qt.Vertical,self)
+ label=SliderLabel(slider_label,filter_state,self)
+ slider.setRange(-1000,2000)
+ slider.setSingleStep(1)
+ return (slider,label)
+ self.preamp_slider,self.preamp_label=create_slider('Preamp')
+ add_slider(self.preamp_slider,self.preamp_label,0)
+ for i,hz in enumerate(self.filter_state.frequencies):
+ slider,label=create_slider(self.hz2label(hz))
+ self.slider[i]=slider
+ #slider.setStyleSheet('font-size: 7pt; font-family: monospace;'+outline%('red',))
+ self.label[i]=label
+ c=i+1
+ add_slider(slider,label,i+1)
+ def hz2label(self, hz):
+ if hz==0:
+ label_text='DC'
+ elif hz==self.filter_state.sample_rate//2:
+ label_text='Coda'
+ else:
+ label_text=hz2str(hz)
+ return label_text
+
+ def connect_signals(self):
+ def connect(writer,reader,slider,label):
+ slider.valueChanged.connect(writer)
+ self.filter_state.readFilter.connect(reader)
+ label_cb=partial(slider.setValue,0)
+ label.clicked.connect(label_cb)
+ return label_cb
+
+ self.preamp_writer_cb=self.write_preamp
+ self.preamp_reader_cb=self.sync_preamp
+ self.preamp_label_cb=connect(self.preamp_writer_cb,
+ self.preamp_reader_cb,
+ self.preamp_slider,
+ self.preamp_label)
+ self.writer_callbacks=[None]*len(self.slider)
+ self.reader_callbacks=[None]*len(self.slider)
+ self.label_callbacks=[None]*len(self.label)
+ for i in range(len(self.slider)):
+ self.writer_callbacks[i]=partial(self.write_coefficient,i)
+ self.reader_callbacks[i]=partial(self.sync_coefficient,i)
+ self.label_callbacks[i]=connect(self.writer_callbacks[i],
+ self.reader_callbacks[i],
+ self.slider[i],
+ self.label[i])
+ def disconnect_signals(self):
+ def disconnect(writer,reader,label_cb,slider,label):
+ slider.valueChanged.disconnect(writer)
+ self.filter_state.readFilter.disconnect(reader)
+ label.clicked.disconnect(label_cb)
+ disconnect(self.preamp_writer_cb, self.preamp_reader_cb,
+ self.preamp_label_cb, self.preamp_slider, self.preamp_label)
+ for i in range(len(self.slider)):
+ disconnect(self.writer_callbacks[i],
+ self.reader_callbacks[i],
+ self.label_callbacks[i],
+ self.slider[i],
+ self.label[i])
+
+ def write_preamp(self, v):
+ self.filter_state.preamp=self.slider2coef(v)
+ self.filter_state.seed()
+ def sync_preamp(self):
+ self.preamp_slider.blockSignals(True)
+ self.preamp_slider.setValue(self.coef2slider(self.filter_state.preamp))
+ self.preamp_slider.blockSignals(False)
+
+
+ def write_coefficient(self,i,v):
+ self.filter_state.coefficients[i]=self.slider2coef(v)/math.sqrt(2.0)
+ self.filter_state.seed()
+ def sync_coefficient(self,i):
+ slider=self.slider[i]
+ slider.blockSignals(True)
+ slider.setValue(self.coef2slider(math.sqrt(2.0)*self.filter_state.coefficients[i]))
+ slider.blockSignals(False)
+ @staticmethod
+ def slider2coef(x):
+ return (1.0+(x/1000.0))
+ @staticmethod
+ def coef2slider(x):
+ return int((x-1.0)*1000)
+outline='border-width: 1px; border-style: solid; border-color: %s;'
+
+class SliderLabel(QtGui.QLabel):
+ clicked=QtCore.pyqtSignal()
+ def __init__(self,label_text,filter_state,parent=None):
+ super(SliderLabel,self).__init__(parent)
+ self.setStyleSheet('font-size: 7pt; font-family: monospace;')
+ self.setText(label_text)
+ self.setMinimumSize(self.sizeHint())
+ def mouseDoubleClickEvent(self, event):
+ self.clicked.emit()
+ super(SliderLabel,self).mouseDoubleClickEvent(event)
+
+#until there are server side state savings, do it in the client but try and avoid
+#simulaneous broadcasting situations
+class FilterState(QtCore.QObject):
+ #DEFAULT_FREQUENCIES=map(float,[25,50,75,100,150,200,300,400,500,800,1e3,1.5e3,3e3,5e3,7e3,10e3,15e3,20e3])
+ DEFAULT_FREQUENCIES=[31.75,63.5,125,250,500,1e3,2e3,4e3,8e3,16e3]
+ readFilter=QtCore.pyqtSignal()
+ def __init__(self,sink):
+ super(FilterState,self).__init__()
+ self.sink_props=dbus.Interface(sink,dbus_interface=prop_iface)
+ self.sink=dbus.Interface(sink,dbus_interface=eq_iface)
+ self.sample_rate=self.get_eq_attr('SampleRate')
+ self.filter_rate=self.get_eq_attr('FilterSampleRate')
+ self.channels=self.get_eq_attr('NChannels')
+ self.channel=self.channels
+ self.set_frequency_values(self.DEFAULT_FREQUENCIES)
+ self.sync_timer=QtCore.QTimer()
+ self.sync_timer.setSingleShot(True)
+ self.sync_timer.timeout.connect(self.save_state)
+
+ def get_eq_attr(self,attr):
+ return self.sink_props.Get(eq_iface,attr)
+ def freq_proper(self,xs):
+ return [0]+xs+[self.sample_rate//2]
+ def _set_frequency_values(self,freqs):
+ self.frequencies=freqs
+ #print 'base',self.frequencies
+ self.filter_frequencies=map(lambda x: int(round(x)), \
+ self.translate_rates(self.filter_rate,self.sample_rate,
+ self.frequencies) \
+ )
+ self.coefficients=[0.0]*len(self.frequencies)
+ self.preamp=1.0
+ def set_frequency_values(self,freqs):
+ self._set_frequency_values(self.freq_proper(freqs))
+ @staticmethod
+ def translate_rates(dst,src,rates):
+ return list(map(lambda x: x*dst/src,rates))
+ def seed(self):
+ self.sink.SeedFilter(self.channel,self.filter_frequencies,self.coefficients,self.preamp)
+ self.sync_timer.start(SYNC_TIMEOUT)
+ def readback(self):
+ coefs,preamp=self.sink.FilterAtPoints(self.channel,self.filter_frequencies)
+ self.coefficients=coefs
+ self.preamp=preamp
+ self.readFilter.emit()
+ def set_filter(self,preamp,coefs):
+ self.sink.SetFilter(self.channel,dbus.Array(coefs),self.preamp)
+ self.sync_timer.start(SYNC_TIMEOUT)
+ def save_state(self):
+ print 'saving state'
+ self.sink.SaveState()
+ def load_profile(self,profile):
+ self.sink.LoadProfile(self.channel,dbus.String(profile))
+ self.sync_timer.start(SYNC_TIMEOUT)
+ def flush_state(self):
+ if self.sync_timer.isActive():
+ self.sync_timer.stop()
+ self.save_state()
+
+
+def safe_log(k,b):
+ i=0
+ while k//b!=0:
+ i+=1
+ k=k//b
+ return i
+def hz2str(hz):
+ p=safe_log(hz,10.0)
+ if p<3:
+ return '%dHz' %(hz,)
+ elif hz%1000==0:
+ return '%dKHz' %(hz/(10.0**3),)
+ else:
+ return '%.1fKHz' %(hz/(10.0**3),)
+
+def subdivide(xs, t_points):
+ while len(xs)<t_points:
+ m=[0]*(2*len(xs)-1)
+ m[0:len(m):2]=xs
+ for i in range(1,len(m),2):
+ m[i]=(m[i-1]+m[i+1])//2
+ xs=m
+ p_drop=len(xs)-t_points
+ p_drop_left=p_drop//2
+ p_drop_right=p_drop-p_drop_left
+ #print 'xs',xs
+ #print 'dropping %d, %d left, %d right' %(p_drop,p_drop_left,p_drop_right)
+ c=len(xs)//2
+ left=xs[0:p_drop_left*2:2]+xs[p_drop_left*2:c]
+ right=list(reversed(xs[c:]))
+ right=right[0:p_drop_right*2:2]+right[p_drop_right*2:]
+ right=list(reversed(right))
+ return left+right
+
+def main():
+ dbus.mainloop.qt.DBusQtMainLoop(set_as_default=True)
+ app=QtGui.QApplication(sys.argv)
+ qpaeq_main=QPaeq()
+ qpaeq_main.show()
+ sys.exit(app.exec_())
+
+if __name__=='__main__':
+ main()