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diff --git a/libk3b/plugin/k3baudioserver.h b/libk3b/plugin/k3baudioserver.h
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+++ b/libk3b/plugin/k3baudioserver.h
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+/* 
+ *
+ * $Id$
+ * Copyright (C) 2004 Sebastian Trueg <[email protected]>
+ *
+ * This file is part of the K3b project.
+ * Copyright (C) 1998-2007 Sebastian Trueg <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * See the file "COPYING" for the exact licensing terms.
+ */
+
+#ifndef _K3B_AUDIO_SERVER_H_
+#define _K3B_AUDIO_SERVER_H_
+
+#include <qobject.h>
+#include "k3b_export.h"
+class K3bAudioOutputPlugin;
+class K3bAudioClient;
+
+
+/**
+ * The AudioServer manages AudioClients to play audio data through
+ * some output plugin.
+ */
+class LIBK3B_EXPORT K3bAudioServer : public QObject
+{
+  Q_OBJECT
+
+ public:
+  K3bAudioServer( QObject* parent = 0, const char* name = 0 );
+  ~K3bAudioServer();
+
+  /**
+   * Returns false in case the named output method could not be found.
+   */
+  bool setOutputMethod( const QCString& name );
+  void setOutputPlugin( K3bAudioOutputPlugin* p );
+
+  /**
+   * Start playing the clients data. It's up to the server if older
+   * clients are suspended, stopped or mixed into a single stream.
+   *
+   * This is called by K3bAudioClient
+   */
+  void attachClient( K3bAudioClient* );
+
+  /**
+   * Stop streaming data from the client.
+   * This is called by K3bAudioClient
+   */
+  void detachClient( K3bAudioClient* );
+
+  /**
+   * We need to be able to play data from everywhere in K3b.
+   */
+  static K3bAudioServer* instance() { return s_instance; }
+
+  /**
+   * Find a plugin by classname.
+   */
+  static K3bAudioOutputPlugin* findOutputPlugin( const QCString& name );
+
+ signals:
+  void error( const QString& );
+
+ private:
+  void customEvent( QCustomEvent* e );
+
+  class Private;
+  friend class Private;
+
+  static K3bAudioServer* s_instance;
+
+  K3bAudioOutputPlugin* m_usedOutputPlugin;
+  bool m_pluginInitialized;
+  K3bAudioClient* m_client;
+
+  Private* d;
+};
+
+#endif