clear pending adjusts on source change

Otherwise it could happen that a player tries to set the values so they end up in the pendings hash, then the user switches to another file before video is detected -> the settings are applied to the new video rather than the one they were targetting.

vlc/videowidget.cpp

@@ -70,7 +70,9 @@ void VideoWidget::connectToMediaObject(MediaObject *mediaObject)
     connect(mediaObject, SIGNAL(videoWidgetSizeChanged(int, int)),
             SLOT(videoWidgetSizeChanged(int, int)));
     connect(mediaObject, SIGNAL(hasVideoChanged(bool)),
-            SLOT(clearPendingAdjusts(bool)));
+            SLOT(processPendingAdjusts(bool)));
+    connect(mediaObject, SIGNAL(currentSourceChanged(MediaSource)),
+            SLOT(clearPendingAdjusts()));
 
     //  mediaObject->setVideoWidgetId(p_video_widget->winId());
     mediaObject->setVideoWidget(this);
@@ -352,7 +354,7 @@ void VideoWidget::videoWidgetSizeChanged(int width, int height)
     libvlc_video_set_format(m_player, "RV32", width, height, width * 4);
 }
 
-void VideoWidget::clearPendingAdjusts(bool videoAvailable)
+void VideoWidget::processPendingAdjusts(bool videoAvailable)
 {
     if (!videoAvailable || !m_mediaObject || !m_mediaObject->hasVideo()) {
         return;
@@ -366,6 +368,12 @@ void VideoWidget::clearPendingAdjusts(bool videoAvailable)
     m_pendingAdjusts.clear();
 }
 
+void VideoWidget::clearPendingAdjusts()
+{
+    m_pendingAdjusts.clear();
+}
+
+
 void VideoWidget::paintEvent(QPaintEvent *event)
 {
     if (m_customRender) {

vlc/videowidget.h

@@ -216,8 +216,16 @@ private slots:
     /**
      * Sets all pending video adjusts (hue, brightness etc.) that the application
      * wanted to set before the vidoe became available.
+     *
+     * \param videoAvailable whether or not video is available at the time of calling
      */
-    void clearPendingAdjusts(bool videoAvailable);
+    void processPendingAdjusts(bool videoAvailable);
+
+    /**
+     * Clears all pending video adjusts (hue, brightness etc.).
+     */
+    void clearPendingAdjusts();
+
 
 protected:
     /* Overloading QWidget */