1 files changed, 86 insertions, 0 deletions
diff --git a/src/3rdparty/phonon/mmf/audioequalizer.cpp b/src/3rdparty/phonon/mmf/audioequalizer.cpp
new file mode 100644
index 0000000..28a8741
--- /dev/null
+++ b/src/3rdparty/phonon/mmf/audioequalizer.cpp
@@ -0,0 +1,86 @@
+/*  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/>.
+
+*/
+
+#include <AudioEqualizerBase.h>
+
+#include "audioequalizer.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace Phonon;
+using namespace Phonon::MMF;
+
+AudioEqualizer::AudioEqualizer(QObject *parent) : AbstractAudioEffect::AbstractAudioEffect(parent, createParams())
+{
+}
+
+void AudioEqualizer::parameterChanged(const int pid,
+                                      const QVariant &value)
+{
+    // There is no way to return an error from this function, so we just
+    // have to trap and ignore exceptions.
+    TRAP_IGNORE(eq()->SetBandLevelL(pid, value.toInt()));
+}
+
+void AudioEqualizer::activateOn(CPlayerType *player)
+{
+    m_effect.reset(CAudioEqualizer::NewL(*player));
+}
+
+CAudioEqualizer *AudioEqualizer::eq() const
+{
+    return static_cast<CAudioEqualizer *>(m_effect.data());
+}
+
+QList<EffectParameter> AudioEqualizer::createParams()
+{
+    QList<EffectParameter> retval;
+
+    // We temporarily create an AudioPlayer, and run the effect on it, so
+    // we can extract the readonly data we need.
+    AudioPlayer dummyPlayer;
+    activateOn(dummyPlayer.player());
+
+    TInt32 dbMin;
+    TInt32 dbMax;
+    eq()->DbLevelLimits(dbMin, dbMax);
+
+    const int bandCount = eq()->NumberOfBands();
+
+    for (int i = 0; i < bandCount; ++i) {
+        const qint32 hz = eq()->CenterFrequency(i);
+
+        const qint32 defVol = eq()->BandLevel(i);
+
+        retval.append(EffectParameter(i,
+                                      tr("Frequency band, %1 Hz").arg(hz),
+                                      EffectParameter::LogarithmicHint,
+                                      QVariant(qint32(defVol)),
+                                      QVariant(qint32(dbMin)),
+                                      QVariant(qint32(dbMax)),
+                                      QVariantList(),
+                                      QString()));
+    }
+
+    m_effect.reset();
+
+    return retval;
+}
+
+QT_END_NAMESPACE
+