comparison base/AudioPlaySource.h @ 27:070e9e1e40ea

* Change SpectrogramLayer to use its own cache type instead of a QImage
* Some gcc-4.0 compile fixes

  */
 
 class AudioPlaySource
 {
 public:
+    virtual ~AudioPlaySource() { }
+
     /**
      * Start playing from the given frame.  If playback is already
      * under way, reseek to the given frame and continue.
      */
     virtual void play(size_t startFrame) = 0;