fix signal connection error

Author: lvzhaobing

qml/QmlAV/QmlAVPlayer.h

@@ -342,7 +342,7 @@ public Q_SLOTS:
     void statusChanged();
     void mediaObjectChanged();
     void audioBackendsChanged();
-    void notifyIntervalChanged(int notifyInterval);
+    void notifyIntervalChanged();
 
 private Q_SLOTS:
     // connect to signals from player

qml/QmlAVPlayer.cpp

@@ -89,7 +89,7 @@ void QmlAVPlayer::classBegin()
     connect(mpPlayer, SIGNAL(seekableChanged()), SIGNAL(seekableChanged()));
     connect(mpPlayer, SIGNAL(seekFinished(qint64)), this, SIGNAL(seekFinished()), Qt::DirectConnection);
     connect(mpPlayer, SIGNAL(bufferProgressChanged(qreal)), SIGNAL(bufferProgressChanged()));
-    connect(mpPlayer, SIGNAL(notifyIntervalChanged()), SIGNAL(notifyIntervalChanged()));
+    connect(mpPlayer, SIGNAL(notifyIntervalChanged()), this,SIGNAL(notifyIntervalChanged()));
     connect(this, SIGNAL(channelLayoutChanged()), SLOT(applyChannelLayout()));
     // direct connection to ensure volume() in slots is correct
     connect(mpPlayer->audio(), SIGNAL(volumeChanged(qreal)), SLOT(applyVolume()), Qt::DirectConnection);