Disable tunes, allow to re-enable them with a simple define

qgroundcontrol.pro

@@ -111,8 +111,11 @@ QT += network \
     serialport \
     sql \
     printsupport \
-    quick \
-    multimedia
+    quick
+
+contains(DEFINES, QGC_NOTIFY_TUNES_ENABLED) {
+    QT += multimedia
+}
 
 !contains(DEFINES, DISABLE_GOOGLE_EARTH) {
     QT += webkit webkitwidgets

src/audio/QGCAudioWorker.cpp

@@ -2,7 +2,6 @@
 #include <QDebug>
 #include <QCoreApplication>
 #include <QFile>
-#include <QSound>
 
 #include "QGC.h"
 #include "QGCAudioWorker.h"
@@ -28,12 +27,14 @@
 QGCAudioWorker::QGCAudioWorker(QObject *parent) :
     QObject(parent),
     voiceIndex(0),
-    emergency(false),
-    muted(false),
     #if defined _MSC_VER && defined QGC_SPEECH_ENABLED
     pVoice(NULL),
     #endif
-    sound(NULL)
+    #ifdef QGC_NOTIFY_TUNES_ENABLED
+    sound(NULL),
+    #endif
+    emergency(false),
+    muted(false)
 {
     // Load settings
     QSettings settings;
@@ -42,7 +43,9 @@ QGCAudioWorker::QGCAudioWorker(QObject *parent) :
 
 void QGCAudioWorker::init()
 {
-    sound = new QSound("");
+#ifdef QGC_NOTIFY_TUNES_ENABLED
+    sound = new QSound(":/files/audio/alert.wav");
+#endif
 
 #if defined Q_OS_LINUX && defined QGC_SPEECH_ENABLED
     espeak_Initialize(AUDIO_OUTPUT_SYNCH_PLAYBACK, 500, NULL, 0); // initialize for playback with 500ms buffer and no options (see speak_lib.h)
@@ -98,10 +101,12 @@ void QGCAudioWorker::say(QString text, int severity)
             beep();
         }
 
+#ifdef QGC_NOTIFY_TUNES_ENABLED
         // Wait for the last sound to finish
         while (!sound->isFinished()) {
             QGC::SLEEP::msleep(100);
         }
+#endif
 
 #if defined _MSC_VER && defined QGC_SPEECH_ENABLED
         pVoice->Speak(text.toStdWString().c_str(), SPF_DEFAULT, NULL);
@@ -150,7 +155,9 @@ void QGCAudioWorker::beep()
 
     if (!muted)
     {
+#ifdef QGC_NOTIFY_TUNES_ENABLED
         sound->play(":/files/audio/alert.wav");
+#endif
     }
 }
 

src/audio/QGCAudioWorker.h

@@ -3,7 +3,9 @@
 
 #include <QObject>
 #include <QTimer>
+#ifdef QGC_NOTIFY_TUNES_ENABLED
 #include <QSound>
+#endif
 
 /* For Snow leopard and later
 #if defined Q_OS_MAC & defined QGC_SPEECH_ENABLED
@@ -38,20 +40,16 @@ public slots:
     void beep();
 
 protected:
-#if defined Q_OS_MAC && defined QGC_SPEECH_ENABLED
-    //NSSpeechSynthesizer
-#endif
-#if defined Q_OS_LINUX && defined QGC_SPEECH_ENABLED
-    //cst_voice* voice; ///< The flite voice object
-#endif
+    int voiceIndex;   ///< The index of the flite voice to use (awb, slt, rms)
 #if defined _MSC_VER && defined QGC_SPEECH_ENABLED
     ISpVoice *pVoice;
 #endif
-    int voiceIndex;   ///< The index of the flite voice to use (awb, slt, rms)
+#ifdef QGC_NOTIFY_TUNES_ENABLED
+    QSound *sound;
+#endif
     bool emergency;   ///< Emergency status flag
     QTimer *emergencyTimer;
     bool muted;
-    QSound *sound;
 };
 
 #endif // QGCAUDIOWORKER_H