refactoring

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@10180 90c681e8-e032-0410-971d-27865f9a5e38

26 files changed, 70 insertions, 120 deletions

diff --git a/src/plugins/Ui/qsui/logo.cpp b/src/plugins/Ui/qsui/logo.cpp
index b8c3ea2c9..70b09df87 100644
--- a/src/plugins/Ui/qsui/logo.cpp
+++ b/src/plugins/Ui/qsui/logo.cpp
@@ -29,30 +29,32 @@
 Logo::Logo(QWidget *parent) : Visual(parent)
 {
     QPixmap pixmap(":/qsui/terminus.png");
-    m_letters.insert('0', pixmap.copy(0, 0, 8, 14));
-    m_letters.insert('1', pixmap.copy(8, 0, 8, 14));
-    m_letters.insert('2', pixmap.copy(16, 0, 8, 14));
-    m_letters.insert('3', pixmap.copy(24, 0, 8, 14));
-    m_letters.insert('4', pixmap.copy(32, 0, 8, 14));
-    m_letters.insert('5', pixmap.copy(40, 0, 8, 14));
-    m_letters.insert('6', pixmap.copy(48, 0, 8, 14));
-    m_letters.insert('7', pixmap.copy(56, 0, 8, 14));
-    m_letters.insert('8', pixmap.copy(64, 0, 8, 14));
-    m_letters.insert('9', pixmap.copy(72, 0, 8, 14));
-    m_letters.insert('A', pixmap.copy(80, 0, 8, 14));
-    m_letters.insert('B', pixmap.copy(88, 0, 8, 14));
-    m_letters.insert('C', pixmap.copy(96, 0, 8, 14));
-    m_letters.insert('D', pixmap.copy(104, 0, 8, 14));
-    m_letters.insert('E', pixmap.copy(112, 0, 8, 14));
-    m_letters.insert('F', pixmap.copy(120, 0, 8, 14));
-    m_letters.insert('/', pixmap.copy(128, 0, 8, 14));
-    m_letters.insert('|', pixmap.copy(136, 0, 8, 14));
-    m_letters.insert('\\', pixmap.copy(144, 0, 8, 14));
-    m_letters.insert('_', pixmap.copy(152, 0, 8, 14));
-    m_letters.insert('-', pixmap.copy(160, 0, 8, 14));
-    m_letters.insert('X', pixmap.copy(168, 0, 8, 14));
-    m_letters.insert('.', pixmap.copy(176, 0, 8, 14));
-    m_letters.insert(' ', pixmap.copy(184, 0, 8, 14));
+    m_letters = {
+        { '0', pixmap.copy(0, 0, 8, 14) },
+        { '1', pixmap.copy(8, 0, 8, 14) },
+        { '2', pixmap.copy(16, 0, 8, 14) },
+        { '3', pixmap.copy(24, 0, 8, 14) },
+        { '4', pixmap.copy(32, 0, 8, 14) },
+        { '5', pixmap.copy(40, 0, 8, 14) },
+        { '6', pixmap.copy(48, 0, 8, 14) },
+        { '7', pixmap.copy(56, 0, 8, 14) },
+        { '8', pixmap.copy(64, 0, 8, 14) },
+        { '9', pixmap.copy(72, 0, 8, 14) },
+        { 'A', pixmap.copy(80, 0, 8, 14) },
+        { 'B', pixmap.copy(88, 0, 8, 14) },
+        { 'C', pixmap.copy(96, 0, 8, 14) },
+        { 'D', pixmap.copy(104, 0, 8, 14) },
+        { 'E', pixmap.copy(112, 0, 8, 14) },
+        { 'F', pixmap.copy(120, 0, 8, 14) },
+        { '/', pixmap.copy(128, 0, 8, 14) },
+        { '|', pixmap.copy(136, 0, 8, 14) },
+        { '\\', pixmap.copy(144, 0, 8, 14) },
+        { '_', pixmap.copy(152, 0, 8, 14) },
+        { '-', pixmap.copy(160, 0, 8, 14) },
+        { 'X', pixmap.copy(168, 0, 8, 14) },
+        { '.', pixmap.copy(176, 0, 8, 14) },
+        { ' ', pixmap.copy(184, 0, 8, 14) }
+    };
 
     QFile file(":/ascii_logo.txt");
     file.open(QIODevice::ReadOnly | QIODevice::Text);
diff --git a/src/plugins/Ui/skinned/dock.cpp b/src/plugins/Ui/skinned/dock.cpp
index b3ec54a44..8e4fb2976 100644
--- a/src/plugins/Ui/skinned/dock.cpp
+++ b/src/plugins/Ui/skinned/dock.cpp
@@ -41,7 +41,6 @@ Dock::Dock (QObject *parent)
         : QObject (parent)
 {
     m_instance = this;
-    m_mainWidget = nullptr;
 }
 
 Dock::~Dock()
diff --git a/src/plugins/Ui/skinned/dock.h b/src/plugins/Ui/skinned/dock.h
index e8e39fc16..d730ff424 100644
--- a/src/plugins/Ui/skinned/dock.h
+++ b/src/plugins/Ui/skinned/dock.h
@@ -51,7 +51,7 @@ private:
     bool isDocked(QWidget*, QWidget*);
     bool isUnder(QWidget*, QWidget*, int);
     static Dock *m_instance;
-    QWidget *m_mainWidget;
+    QWidget *m_mainWidget = nullptr;
     QList <QWidget *> m_widgetList;
     QList <bool> m_dockedList;
     QList <QPoint> m_delta_list;
diff --git a/src/plugins/Ui/skinned/eqpreset.cpp b/src/plugins/Ui/skinned/eqpreset.cpp
index 41318a84e..158d7caa5 100644
--- a/src/plugins/Ui/skinned/eqpreset.cpp
+++ b/src/plugins/Ui/skinned/eqpreset.cpp
@@ -26,12 +26,7 @@
 
 EQPreset::EQPreset()
  : QListWidgetItem()
-{
-    m_preamp = 0;
-    for(int i = 0; i < 10; ++i)
-    m_bands[i] = 0;
-}
-
+{}
 
 EQPreset::~EQPreset()
 {}
diff --git a/src/plugins/Ui/skinned/eqpreset.h b/src/plugins/Ui/skinned/eqpreset.h
index 194a3c2fd..34d81eae0 100644
--- a/src/plugins/Ui/skinned/eqpreset.h
+++ b/src/plugins/Ui/skinned/eqpreset.h
@@ -39,8 +39,8 @@ public:
     double preamp();
 
 private:
-    double m_bands[10];
-    double m_preamp;
+    double m_bands[10] = { 0 };
+    double m_preamp = 0;
 
 };
 
diff --git a/src/plugins/Ui/skinned/eqslider.cpp b/src/plugins/Ui/skinned/eqslider.cpp
index f1a75415f..5c4be6e6a 100644
--- a/src/plugins/Ui/skinned/eqslider.cpp
+++ b/src/plugins/Ui/skinned/eqslider.cpp
@@ -27,12 +27,8 @@
 EqSlider::EqSlider(QWidget *parent): PixmapWidget(parent)
 {
     m_skin = Skin::instance();
-    connect(m_skin, SIGNAL(skinChanged()), this, SLOT(updateSkin()));
+    connect(m_skin, SIGNAL(skinChanged()), SLOT(updateSkin()));
     setPixmap(m_skin->getEqSlider(0));
-    m_moving = false;
-    m_min = -20;
-    m_max = 20;
-    m_old = m_value = 0;
     draw(false);
     setCursor(m_skin->getCursor(Skin::CUR_EQSLID));
 }
diff --git a/src/plugins/Ui/skinned/eqslider.h b/src/plugins/Ui/skinned/eqslider.h
index 0ca38c380..f5774ef53 100644
--- a/src/plugins/Ui/skinned/eqslider.h
+++ b/src/plugins/Ui/skinned/eqslider.h
@@ -51,9 +51,9 @@ private slots:
 
 private:
     Skin *m_skin;
-    bool m_moving;
+    bool m_moving = false;
     int press_pos;
-    double m_max, m_min, m_pos, m_value, m_old;
+    double m_max = 20, m_min = -20, m_pos = 0, m_value = 0, m_old = 0;
     QPixmap m_pixmap;
     double convert(int);   // value = convert(position);
     void draw(bool pressed = true);
diff --git a/src/plugins/Ui/skinned/eqtitlebar.cpp b/src/plugins/Ui/skinned/eqtitlebar.cpp
index a6d202bfe..b60c4c3fd 100644
--- a/src/plugins/Ui/skinned/eqtitlebar.cpp
+++ b/src/plugins/Ui/skinned/eqtitlebar.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2007-2013 by Ilya Kotov                                 *
+ *   Copyright (C) 2007-2021 by Ilya Kotov                                 *
  *   forkotov02@ya.ru                                                      *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -32,13 +32,6 @@
 EqTitleBar::EqTitleBar(QWidget *parent)
         : PixmapWidget(parent)
 {
-    m_volumeBar = nullptr;
-    m_balanceBar = nullptr;
-    m_shade2 = nullptr;
-    m_left = 0;
-    m_right = 0;
-    m_shaded = false;
-    m_align = false;
     m_skin = Skin::instance();
     m_eq = parentWidget();
     m_mw = qobject_cast<MainWindow*>(m_eq->parent());
diff --git a/src/plugins/Ui/skinned/eqtitlebar.h b/src/plugins/Ui/skinned/eqtitlebar.h
index 6e56ab72e..b1b17af9f 100644
--- a/src/plugins/Ui/skinned/eqtitlebar.h
+++ b/src/plugins/Ui/skinned/eqtitlebar.h
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2007-2013 by Ilya Kotov                                 *
+ *   Copyright (C) 2007-2021 by Ilya Kotov                                 *
  *   forkotov02@ya.ru                                                      *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -48,17 +48,17 @@ private slots:
 private:
     void updatePositions();
     Skin* m_skin;
-    int m_left;
-    int m_right;
+    int m_left = 0;
+    int m_right = 0;
     QPoint m_pos;
     QWidget* m_eq;
     MainWindow* m_mw;
     Button* m_close;
     Button* m_shade;
-    Button* m_shade2;
-    bool m_shaded, m_align;
-    ShadedBar* m_volumeBar;
-    ShadedBar* m_balanceBar;
+    Button* m_shade2 = nullptr;
+    bool m_shaded = false, m_align = false;
+    ShadedBar* m_volumeBar = nullptr;
+    ShadedBar* m_balanceBar = nullptr;
 
 protected:
     void mousePressEvent(QMouseEvent*) override;
diff --git a/src/plugins/Ui/skinned/eqwidget.cpp b/src/plugins/Ui/skinned/eqwidget.cpp
index 34e076345..1d6c8a307 100644
--- a/src/plugins/Ui/skinned/eqwidget.cpp
+++ b/src/plugins/Ui/skinned/eqwidget.cpp
@@ -45,7 +45,6 @@ EqWidget::EqWidget (QWidget *parent)
         : PixmapWidget (parent)
 {
     setWindowTitle(tr("Equalizer"));
-    m_shaded = false;
     m_skin = Skin::instance();
     setPixmap (m_skin->getEqPart (Skin::EQ_MAIN), true);
     setCursor (m_skin->getCursor (Skin::CUR_EQNORMAL));
diff --git a/src/plugins/Ui/skinned/eqwidget.h b/src/plugins/Ui/skinned/eqwidget.h
index 63d0098b9..6e7b3c007 100644
--- a/src/plugins/Ui/skinned/eqwidget.h
+++ b/src/plugins/Ui/skinned/eqwidget.h
@@ -95,7 +95,7 @@ private:
     QMenu *m_presetsMenu;
     QList<EQPreset*> m_presets;
     QList<EQPreset*> m_autoPresets;
-    bool m_shaded;
+    bool m_shaded = false;
 };
 
 #endif
diff --git a/src/plugins/Ui/skinned/horizontalslider.cpp b/src/plugins/Ui/skinned/horizontalslider.cpp
index 45a61c740..e898380c3 100644
--- a/src/plugins/Ui/skinned/horizontalslider.cpp
+++ b/src/plugins/Ui/skinned/horizontalslider.cpp
@@ -30,9 +30,6 @@ HorizontalSlider::HorizontalSlider(QWidget *parent)
         : QWidget(parent)
 {
     m_skin = Skin::instance();
-    m_min = 0;
-    m_max = 100;
-    m_value = 0;
     connect(m_skin, SIGNAL(skinChanged()), this, SLOT(updateSkin()));
     updateSkin();
 }
diff --git a/src/plugins/Ui/skinned/horizontalslider.h b/src/plugins/Ui/skinned/horizontalslider.h
index 3933d4a31..a702e2238 100644
--- a/src/plugins/Ui/skinned/horizontalslider.h
+++ b/src/plugins/Ui/skinned/horizontalslider.h
@@ -53,9 +53,9 @@ private:
     int sliderSize() const;
 
     Skin *m_skin;
-    int m_old_value, m_value;
-    int m_press_pos;
-    int m_min, m_max, m_slider_pos;
+    int m_old_value = -1, m_value = 0;
+    int m_press_pos = 0;
+    int m_min = 0, m_max = 100, m_slider_pos = 0;
     QColor m_normal, m_normal_bg;
 
 };
diff --git a/src/plugins/Ui/skinned/playlist.cpp b/src/plugins/Ui/skinned/playlist.cpp
index 2a7fe390c..d96e9c53e 100644
--- a/src/plugins/Ui/skinned/playlist.cpp
+++ b/src/plugins/Ui/skinned/playlist.cpp
@@ -58,8 +58,6 @@ PlayList::PlayList (PlayListManager *manager, QWidget *parent)
     m_ui_settings = QmmpUiSettings::instance();
     m_skin = Skin::instance();
     m_ratio = m_skin->ratio();
-    m_pl_browser = nullptr;
-    m_pl_selector = nullptr;
 
 #ifdef QMMP_WS_X11
     QString wm_name = WindowSystem::netWindowManagerName();
diff --git a/src/plugins/Ui/skinned/playlistslider.cpp b/src/plugins/Ui/skinned/playlistslider.cpp
index 020c70d2b..87132cd59 100644
--- a/src/plugins/Ui/skinned/playlistslider.cpp
+++ b/src/plugins/Ui/skinned/playlistslider.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2006-2015 by Ilya Kotov                                 *
+ *   Copyright (C) 2006-2021 by Ilya Kotov                                 *
  *   forkotov02@ya.ru                                                      *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -29,16 +29,10 @@ PlayListSlider::PlayListSlider(QWidget *parent)
         : QWidget(parent)
 {
     m_skin = Skin::instance();
-    m_moving = false;
-    m_pressed = false;
-    m_min = 0;
-    m_max = 0;
-    m_value = 0;
     connect(m_skin, SIGNAL(skinChanged()), this, SLOT(updateSkin()));
     setCursor(m_skin->getCursor(Skin::CUR_PVSCROLL));
 }
 
-
 PlayListSlider::~PlayListSlider()
 {}
 
diff --git a/src/plugins/Ui/skinned/playlistslider.h b/src/plugins/Ui/skinned/playlistslider.h
index 83aaad957..3484e3bb0 100644
--- a/src/plugins/Ui/skinned/playlistslider.h
+++ b/src/plugins/Ui/skinned/playlistslider.h
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2006-2015 by Ilya Kotov                                 *
+ *   Copyright (C) 2006-2021 by Ilya Kotov                                 *
  *   forkotov02@ya.ru                                                      *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -46,9 +46,9 @@ private slots:
 private:
     Skin *m_skin;
     int m_old;
-    bool m_moving, m_pressed;
-    int m_press_pos;
-    int m_min, m_max, m_value, m_pos;
+    bool m_moving = false, m_pressed = false;
+    int m_press_pos = 0;
+    int m_min = 0, m_max = 0, m_value = 0, m_pos = 0;
     int convert(int);   // value = convert(position);
 
 protected:
diff --git a/src/plugins/Ui/skinned/playlisttitlebar.cpp b/src/plugins/Ui/skinned/playlisttitlebar.cpp
index 4a79a2743..e69adb3cd 100644
--- a/src/plugins/Ui/skinned/playlisttitlebar.cpp
+++ b/src/plugins/Ui/skinned/playlisttitlebar.cpp
@@ -35,13 +35,7 @@
 PlayListTitleBar::PlayListTitleBar(QWidget *parent)
         : PixmapWidget(parent)
 {
-    m_active = false;
-    m_resize = false;
     m_formatter.setPattern(TITLE_FORMAT);
-    m_shade2 = nullptr;
-    m_model = nullptr;
-    m_shaded = false;
-    m_align = false;
     m_skin = Skin::instance();
     m_ratio = m_skin->ratio();
     connect(m_skin, SIGNAL(skinChanged()), this, SLOT(updateSkin()));
diff --git a/src/plugins/Ui/skinned/playlisttitlebar.h b/src/plugins/Ui/skinned/playlisttitlebar.h
index b470dd808..71d285560 100644
--- a/src/plugins/Ui/skinned/playlisttitlebar.h
+++ b/src/plugins/Ui/skinned/playlisttitlebar.h
@@ -55,17 +55,17 @@ private:
     void updatePixmap();
     Skin *m_skin;
     QPoint pos;
-    bool m_active;
+    bool m_active = false;
     PlayList* m_pl;
     MainWindow* m_mw;
-    Button* m_close;
-    Button* m_shade;
-    Button* m_shade2;
-    bool m_shaded;
-    bool m_align, m_resize;
+    Button *m_close;
+    Button *m_shade = nullptr;
+    Button *m_shade2 = nullptr;
+    bool m_shaded = false;
+    bool m_align = false, m_resize = false;
     int m_ratio;
     int m_height;
-    PlayListModel* m_model;
+    PlayListModel* m_model = nullptr;
     QString m_text;
     QString m_truncatedText;
     QFont m_font;
diff --git a/src/plugins/Ui/skinned/positionbar.cpp b/src/plugins/Ui/skinned/positionbar.cpp
index a811164b3..782c8439d 100644
--- a/src/plugins/Ui/skinned/positionbar.cpp
+++ b/src/plugins/Ui/skinned/positionbar.cpp
@@ -31,10 +31,6 @@ PositionBar::PositionBar(QWidget *parent) : PixmapWidget(parent)
     m_skin = Skin::instance();
     connect(m_skin, SIGNAL(skinChanged()), this, SLOT(updateSkin()));
     setPixmap(m_skin->getPosBar());
-    m_moving = false;
-    m_min = 0;
-    m_max = 0;
-    m_old = m_value = 0;
     draw(false);
     setCursor(m_skin->getCursor(Skin::CUR_POSBAR));
 }
diff --git a/src/plugins/Ui/skinned/positionbar.h b/src/plugins/Ui/skinned/positionbar.h
index 9456aaea6..da12cf6aa 100644
--- a/src/plugins/Ui/skinned/positionbar.h
+++ b/src/plugins/Ui/skinned/positionbar.h
@@ -56,9 +56,9 @@ private:
     void mouseMoveEvent(QMouseEvent*) override;
     void wheelEvent(QWheelEvent *e) override;
     Skin *m_skin;
-    bool m_moving;
+    bool m_moving = false;
     qint64 press_pos;
-    qint64 m_max, m_min, m_pos, m_value, m_old;
+    qint64 m_max = 0, m_min = 0, m_pos, m_value = 0, m_old = 0;
     QPixmap m_pixmap;
     qint64 convert(qint64);   // value = convert(position);
     void draw(bool pressed = true);
diff --git a/src/plugins/Ui/skinned/volumebar.cpp b/src/plugins/Ui/skinned/volumebar.cpp
index dadf82c96..1119b83f9 100644
--- a/src/plugins/Ui/skinned/volumebar.cpp
+++ b/src/plugins/Ui/skinned/volumebar.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2006-2013 by Ilya Kotov                                 *
+ *   Copyright (C) 2006-2021 by Ilya Kotov                                 *
  *   forkotov02@ya.ru                                                      *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -32,10 +32,6 @@ VolumeBar::VolumeBar(QWidget *parent) : PixmapWidget(parent)
     m_skin = Skin::instance();
     connect(m_skin, SIGNAL(skinChanged()), this, SLOT(updateSkin()));
     setPixmap(m_skin->getVolumeBar(0));
-    m_moving = false;
-    m_min = 0;
-    m_max = 100;
-    m_old = m_value = 0;
     draw(false);
 }
 
diff --git a/src/plugins/Ui/skinned/volumebar.h b/src/plugins/Ui/skinned/volumebar.h
index 7a5db65cb..a712e9651 100644
--- a/src/plugins/Ui/skinned/volumebar.h
+++ b/src/plugins/Ui/skinned/volumebar.h
@@ -23,7 +23,6 @@
 #include "pixmapwidget.h"
 
 class Skin;
-class MainWindow;
 
 /**
     @author Ilya Kotov <forkotov02@ya.ru>
@@ -59,11 +58,10 @@ private slots:
 
 private:
     Skin *m_skin;
-    bool m_moving;
-    int press_pos;
-    int m_max, m_min, m_pos, m_value, m_old;
+    bool m_moving = false;
+    int press_pos = -1;
+    int m_max = 100, m_min = 0, m_pos, m_value = 0, m_old = 0;
     QPixmap m_pixmap;
-    MainWindow *mw;
     int convert(int);   // value = convert(position);
     void draw(bool pressed = true);
 
diff --git a/src/qmmp/replaygain.cpp b/src/qmmp/replaygain.cpp
index 29e9c2191..5bd37f2eb 100644
--- a/src/qmmp/replaygain.cpp
+++ b/src/qmmp/replaygain.cpp
@@ -23,9 +23,7 @@
 #include "replaygain_p.h"
 
 ReplayGain::ReplayGain()
-{
-    m_mode = QmmpSettings::REPLAYGAIN_DISABLED;
-}
+{}
 
 ReplayGain::~ReplayGain()
 {}
diff --git a/src/qmmp/replaygain_p.h b/src/qmmp/replaygain_p.h
index 55a11164b..0b222d58f 100644
--- a/src/qmmp/replaygain_p.h
+++ b/src/qmmp/replaygain_p.h
@@ -44,7 +44,7 @@ public:
 private:
     void updateScale();
     QMap<Qmmp::ReplayGainKey, double> m_info;
-    QmmpSettings::ReplayGainMode m_mode;
+    QmmpSettings::ReplayGainMode m_mode = QmmpSettings::REPLAYGAIN_DISABLED;
     double m_scale = 1.0;
     double m_preamp = 0.0;
     double m_default_gain = 0.0;
diff --git a/src/qmmp/statehandler.cpp b/src/qmmp/statehandler.cpp
index ab453dcf1..c9594ace9 100644
--- a/src/qmmp/statehandler.cpp
+++ b/src/qmmp/statehandler.cpp
@@ -38,11 +38,6 @@ StateHandler::StateHandler(QObject *parent)
         qFatal("StateHandler: only one instance is allowed");
     qRegisterMetaType<AudioParameters>("AudioParameters");
     m_instance = this;
-    m_elapsed = -1;
-    m_duration = 0;
-    m_bitrate = 0;
-    m_sendAboutToFinish = true;
-    m_state = Qmmp::Stopped;
 }
 
 StateHandler::~StateHandler()
diff --git a/src/qmmp/statehandler.h b/src/qmmp/statehandler.h
index 9319fa9a4..35a577f3f 100644
--- a/src/qmmp/statehandler.h
+++ b/src/qmmp/statehandler.h
@@ -135,14 +135,14 @@ signals:
 
 
 private:
-    qint64 m_elapsed;
-    qint64 m_duration;
-    bool m_sendAboutToFinish;
-    int m_bitrate;
+    qint64 m_elapsed = -1;
+    qint64 m_duration = 0;
+    bool m_sendAboutToFinish = true;
+    int m_bitrate = 0;
     static StateHandler* m_instance;
     TrackInfo m_info;
     QHash <QString, QString> m_streamInfo;
-    Qmmp::State m_state;
+    Qmmp::State m_state = Qmmp::Stopped;
     AudioParameters m_audioParameters;
     mutable QMutex m_mutex;
 };