Fix #317 Multiple audio input mixer

src/freeseer/plugins/audiomixer/multiaudio/multiaudio.py

@@ -0,0 +1,176 @@
+'''
+freeseer - vga/presentation capture software
+
+Copyright (C) 2013  Free and Open Source Software Learning Centre
+http://fosslc.org
+
+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/>.
+
+For support, questions, suggestions or any other inquiries, visit:
+http://wiki.github.com/Freeseer/freeseer/
+
+@author: Aaron Brubacher
+'''
+
+import ConfigParser
+import pygst
+pygst.require('0.10')
+import gst
+from PyQt4 import QtGui, QtCore
+
+from freeseer.framework.plugin import IAudioMixer
+
+class MultiAudio(IAudioMixer):
+    name = 'Multiple Audio Inputs'
+    os = ['linux', 'linux2', 'win32', 'cygwin', 'darwin']
+    input1 = None
+    input2 = None
+    widget = None
+
+    def get_audiomixer_bin(self):
+        mixerbin = gst.Bin()
+
+        audiomixer = gst.element_factory_make('adder', 'audiomixer')
+        mixerbin.add(audiomixer)
+
+        # ghost pads
+        sinkpad1 = audiomixer.get_pad('sink%d')
+        sink_ghostpad1 = gst.GhostPad('sink1', sinkpad1)
+        mixerbin.add_pad(sink_ghostpad1)
+
+        sinkpad2 = audiomixer.get_pad('sink%d')
+        sink_ghostpad2 = gst.GhostPad('sink2', sinkpad2)
+        mixerbin.add_pad(sink_ghostpad2)
+
+        srcpad = audiomixer.get_pad('src')
+        src_ghostpad = gst.GhostPad('src', srcpad)
+        mixerbin.add_pad(src_ghostpad)
+
+        return mixerbin
+
+    def get_inputs(self):
+        inputs = [(self.input1, 0), (self.input2, 1)]
+        return inputs
+
+    def load_inputs(self, player, mixer, inputs):
+        input1 = inputs[0]
+        player.add(input1)
+        input1.link(mixer)
+
+        input2 = inputs[1]
+        player.add(input2)
+        input2.link(mixer)
+
+    def load_config(self, plugman):
+        self.plugman = plugman
+
+        try:
+            self.input1 = self.plugman.get_plugin_option(self.CATEGORY, self.get_config_name(), 'Audio Input 1')
+            self.input2 = self.plugman.get_plugin_option(self.CATEGORY, self.get_config_name(), 'Audio Input 2')
+        except ConfigParser.NoSectionError:
+            self.plugman.set_plugin_option(self.CATEGORY, self.get_config_name(), 'Audio Input 1', self.input1)
+            self.plugman.set_plugin_option(self.CATEGORY, self.get_config_name(), 'Audio Input 2', self.input2)
+
+    def get_widget(self):
+        if self.widget is None:
+            self.widget = QtGui.QWidget()
+            layout = QtGui.QGridLayout()
+            self.widget.setLayout(layout)
+
+            self.source1_label = QtGui.QLabel('Source 1')
+            self.source1_combobox = QtGui.QComboBox()
+            self.source1_combobox.setSizePolicy(QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Maximum)
+            self.source1_button = QtGui.QPushButton("Setup") 
+            layout.addWidget(self.source1_label, 0, 0)
+            layout.addWidget(self.source1_combobox, 0, 1)
+            layout.addWidget(self.source1_button, 0, 2)
+            self.widget.connect(self.source1_combobox, QtCore.SIGNAL('currentIndexChanged(const QString&)'), self.set_input1)
+            self.widget.connect(self.source1_button, QtCore.SIGNAL('clicked()'), self.source1_setup)
+
+            self.source2_label = QtGui.QLabel('Source 2')
+            self.source2_combobox = QtGui.QComboBox()
+            self.source2_combobox.setSizePolicy(QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Maximum)
+            self.source2_button = QtGui.QPushButton("Setup") 
+            layout.addWidget(self.source2_label, 1, 0)
+            layout.addWidget(self.source2_combobox, 1, 1)
+            layout.addWidget(self.source2_button, 1, 2)
+            self.widget.connect(self.source2_combobox, QtCore.SIGNAL('currentIndexChanged(const QString&)'), self.set_input2)
+            self.widget.connect(self.source2_button, QtCore.SIGNAL('clicked()'), self.source2_setup)
+        return self.widget
+
+    def widget_load_config(self, plugman):
+        self.load_config(plugman)
+
+        plugins = self.plugman.get_audioinput_plugins()
+        self.widget.disconnect(self.source1_combobox, QtCore.SIGNAL('currentIndexChanged(const QString&)'), self.set_input1)
+        self.widget.disconnect(self.source2_combobox, QtCore.SIGNAL('currentIndexChanged(const QString&)'), self.set_input2)
+        self.source1_combobox.clear()
+        self.source2_combobox.clear()
+        for i, source in enumerate(plugins):
+            name = source.plugin_object.get_name()
+            self.source1_combobox.addItem(name)
+            if self.input1 == name:
+                self.source1_combobox.setCurrentIndex(i)
+            self.source2_combobox.addItem(name)
+            if self.input2 == name:
+                self.source2_combobox.setCurrentIndex(i)
+        self.widget.connect(self.source1_combobox, QtCore.SIGNAL('currentIndexChanged(const QString&)'), self.set_input1)
+        self.widget.connect(self.source2_combobox, QtCore.SIGNAL('currentIndexChanged(const QString&)'), self.set_input2)
+
+    def source1_setup(self):
+        plugin_name = str(self.source1_combobox.currentText())
+        plugin = self.plugman.get_plugin_by_name(plugin_name, "AudioInput")
+        plugin.plugin_object.set_instance(0)
+        plugin.plugin_object.get_dialog()
+
+    def source2_setup(self):
+        plugin_name = str(self.source2_combobox.currentText())
+        plugin = self.plugman.get_plugin_by_name(plugin_name, "AudioInput")
+        plugin.plugin_object.set_instance(1)
+        plugin.plugin_object.get_dialog()
+
+    def set_input1(self, input1):
+        self.input1 = input1
+        self.plugman.set_plugin_option(self.CATEGORY, self.get_config_name(), 'Audio Input 1', self.input1)
+        self.plugman.save()
+
+    def set_input2(self, input2):
+        self.input2 = input2
+        self.plugman.set_plugin_option(self.CATEGORY, self.get_config_name(), 'Audio Input 2', self.input2)
+        self.plugman.save()
+
+    def get_properties(self):
+        return ['Input1', 'Input2']
+
+    def get_property_value(self, p):
+        if p == 'Input1':
+            return self.input1
+        elif p == 'Input2':
+            return self.input2
+        else:
+            return "There's no property with such name"
+
+    def set_property_value(self, p, value):
+        if value not in self.plugman.get_audioinput_plugins():
+            print "Choose an available Input"
+            #TODO List available options
+            return
+
+        if p == 'Input1':
+            self.set_input1(value)
+        elif p == 'Input2':
+            self.set_input2(value)
+        else:
+            return "Error: There's no property with such name"
+

src/freeseer/plugins/audiomixer/multiaudio/multiaudio.yapsy-plugin

@@ -0,0 +1,9 @@
+[Core]
+Name = Multiple Audio Inputs
+Module = multiaudio
+
+[Documentation]
+Author = Aaron Brubacher
+Version = 0.1
+Website = http://fosslc.org
+Description = Audio mixer for multiple audio inputs.