Work on extending the framework for accomodating effects.

This extends the framework for being able to handle audio effects, largely
affecting how the audio chain is set up, connected and disconnected, and
therefore the Backend has been refactored slightly, and the class MediaNode
introduced, see its documentation.

In addition two effects has been written: BassBoost and AudioEqualizer.

1 files changed, 63 insertions, 0 deletions

diff --git a/src/3rdparty/phonon/mmf/audioequalizer.h b/src/3rdparty/phonon/mmf/audioequalizer.h
new file mode 100644
index 0000000..5ef2af9
--- /dev/null
+++ b/src/3rdparty/phonon/mmf/audioequalizer.h
@@ -0,0 +1,63 @@
+/*  This file is part of the KDE project.
+
+Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+
+This library is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation, either version 2.1 or 3 of the License.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#ifndef PHONON_MMF_AUDIOEQUALIZER_H
+#define PHONON_MMF_AUDIOEQUALIZER_H
+
+#include "abstractaudioeffect.h"
+
+class CAudioEqualizer;
+
+QT_BEGIN_NAMESPACE
+
+namespace Phonon
+{
+namespace MMF
+{
+/**
+ * @short A classic equalizer.
+ *
+ * The equalizer has a number of bands, and each band has a frequency, and a
+ * volume. With Phonon's API, this is modeled such that each band is one
+ * Phonon::EffectParameter, where Phonon::EffectParameter::id() is the band
+ * number, and the setting is the volume level.
+ */
+class AudioEqualizer : public AbstractAudioEffect
+{
+    Q_OBJECT
+public:
+    AudioEqualizer(QObject *parent);
+
+protected:
+    virtual void parameterChanged(const int id,
+                                  const QVariant &value);
+
+    virtual void activateOn(CPlayerType *player);
+
+private:
+    inline CAudioEqualizer *eq() const;
+    QList<EffectParameter> createParams();
+    QScopedPointer<CAudioEqualizer> m_bassBoost;
+};
+}
+}
+
+QT_END_NAMESPACE
+
+#endif
+