diff options
Diffstat (limited to 'src/utils/qpaeq')
| -rwxr-xr-x | src/utils/qpaeq | 574 |
1 files changed, 574 insertions, 0 deletions
diff --git a/src/utils/qpaeq b/src/utils/qpaeq new file mode 100755 index 0000000..7e01d87 --- /dev/null +++ b/src/utils/qpaeq @@ -0,0 +1,574 @@ +#!/usr/bin/env python3 +# 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 Lesser General Public License as +# published by the Free Software Foundation, either version 2.1 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 Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + + +import os,math,sys +try: + from PyQt5 import QtWidgets,QtCore + import dbus.mainloop.pyqt5 + import dbus +except ImportError as e: + sys.stderr.write('There was an error importing needed libraries\n' + 'Make sure you have qt5 and dbus-python installed\n' + 'The error that occurred was:\n' + '\t%s\n' % (str(e))) + sys.exit(-1) + +from functools import partial + +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(): + try: + 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) + except Exception as e: + sys.stderr.write('There was an error connecting to pulseaudio, ' + 'please make sure you have the pulseaudio dbus ' + 'module loaded, exiting...\n') + sys.exit(-1) + + +#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(QtWidgets.QWidget): + manager_path='/org/pulseaudio/equalizing1' + manager_iface='org.PulseAudio.Ext.Equalizing1.Manager' + core_iface='org.PulseAudio.Core1' + core_path='/org/pulseaudio/core1' + module_name='module-equalizer-sink' + + def __init__(self): + QtWidgets.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=QtWidgets.QVBoxLayout() + self.setLayout(self.main_layout) + toprow_layout=QtWidgets.QHBoxLayout() + sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Fixed) + sizePolicy.setHorizontalStretch(0) + sizePolicy.setVerticalStretch(0) + #sizePolicy.setHeightForWidth(self.profile_box.sizePolicy().hasHeightForWidth()) + + toprow_layout.addWidget(QtWidgets.QLabel('Sink')) + self.sink_box = QtWidgets.QComboBox() + self.sink_box.setSizePolicy(sizePolicy) + self.sink_box.setDuplicatesEnabled(False) + self.sink_box.setInsertPolicy(QtWidgets.QComboBox.InsertAlphabetically) + #self.sink_box.setSizeAdjustPolicy(QtWidgets.QComboBox.AdjustToContents) + toprow_layout.addWidget(self.sink_box) + + toprow_layout.addWidget(QtWidgets.QLabel('Channel')) + self.channel_box = QtWidgets.QComboBox() + self.channel_box.setSizePolicy(sizePolicy) + toprow_layout.addWidget(self.channel_box) + + toprow_layout.addWidget(QtWidgets.QLabel('Preset')) + self.profile_box = QtWidgets.QComboBox() + self.profile_box.setSizePolicy(sizePolicy) + self.profile_box.setInsertPolicy(QtWidgets.QComboBox.InsertAlphabetically) + #self.profile_box.setSizeAdjustPolicy(QtWidgets.QComboBox.AdjustToContents) + toprow_layout.addWidget(self.profile_box) + + large_icon_size=self.style().pixelMetric(QtWidgets.QStyle.PM_LargeIconSize) + large_icon_size=QtCore.QSize(large_icon_size,large_icon_size) + save_profile=QtWidgets.QToolButton() + save_profile.setIcon(self.style().standardIcon(QtWidgets.QStyle.SP_DriveFDIcon)) + save_profile.setIconSize(large_icon_size) + save_profile.setToolButtonStyle(QtCore.Qt.ToolButtonIconOnly) + save_profile.clicked.connect(self.save_profile) + remove_profile=QtWidgets.QToolButton() + remove_profile.setIcon(self.style().standardIcon(QtWidgets.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 = QtWidgets.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 range(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=QtWidgets.QInputDialog.getItem(self,'Preset Name','Preset',self.profiles,current) + if not ok or profile=='': + return + if profile in self.profiles: + mbox=QtWidgets.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) + 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) + try: + self.sinks=manager_props.Get(self.manager_iface,'EqualizedSinks') + except dbus.exceptions.DBusException: + # probably module not yet loaded, try to load it: + try: + core=self.connection.get_object(object_path=self.core_path) + core.LoadModule(self.module_name,{},dbus_interface=self.core_iface) + # yup, we don't need to re-create manager_obj and manager_props, + # these are late-bound + self.sinks=manager_props.Get(self.manager_iface,'EqualizedSinks') + except dbus.exceptions.DBusException: + sys.stderr.write('It seems that running pulseaudio does not support ' + 'equalizer features and loading %s module failed.\n' + 'Exiting...\n' % self.module_name) + sys.exit(-1) + + 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(QtWidgets.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-family: monospace;'+outline%('blue')) + self.filter_state=filter_state + self.setLayout(QtWidgets.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(QtWidgets.QWidget): + def __init__(self,filter_state,parent=None): + super(SliderArraySub,self).__init__(parent) + self.filter_state=filter_state + self.setLayout(QtWidgets.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-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=QtWidgets.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-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(QtWidgets.QLabel): + clicked=QtCore.pyqtSignal() + def __init__(self,label_text,filter_state,parent=None): + super(SliderLabel,self).__init__(parent) + self.setStyleSheet('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=[int(round(x)) for x in 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([x*dst/src for x in 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.pyqt5.DBusQtMainLoop(set_as_default=True) + app=QtWidgets.QApplication(sys.argv) + qpaeq_main=QPaeq() + qpaeq_main.show() + sys.exit(app.exec_()) + +if __name__=='__main__': + main() |