switched from qsettings to json added editng of actors

src/sensors/speakersensor.cpp

@@ -0,0 +1,59 @@
+#include "speakersensor.h"
+
+#include <QDebug>
+
+SpeakerSensorSource::SpeakerSensorSource(QString name, QObject *parent) : QObject(parent), name_(name)
+{
+  silenceCount = 0;
+}
+
+SpeakerSensorSource::~SpeakerSensorSource()
+{
+    abort();
+}
+
+void SpeakerSensorSource::run()
+{
+    abort();
+    arecord.start( "arecord --disable-softvol -r 8000 -D front -" );
+
+    connect(&timer, SIGNAL(timeout()), this, SLOT(doTick()));
+    timer.setInterval(500);
+    timer.start();
+
+    stateChanged(Sensor(Sensor::TYPE_AUDIO_OUTPUT, 0, 1, name_));
+}
+
+
+void SpeakerSensorSource::abort()
+{
+    if(arecord.state() == QProcess::Running)arecord.close();
+    if(timer.isActive())timer.stop();
+}
+
+void SpeakerSensorSource::doTick()
+{
+    if(arecord.state() == QProcess::Running)
+    {
+       QByteArray buffer = arecord.readAllStandardOutput();
+       //qDebug()<<(int16_t)buffer[0];
+       for(long i = 0; i < buffer.size(); i++)
+       {
+           if((int16_t)buffer.at(i) != -128)
+           {
+              silenceCount = 0;
+           }
+       }
+       if(silenceCount > 40 && state)
+       {
+            stateChanged(Sensor(Sensor::TYPE_AUDIO_OUTPUT, 0, 0, name_));
+            state = false;
+       }
+       else if(silenceCount == 0 && !state)
+       {
+           stateChanged(Sensor(Sensor::TYPE_AUDIO_OUTPUT, 0, 1, name_));
+           state = true;
+       }
+       silenceCount++;
+    }
+}