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diff --git a/src/multimedia/spatial/qambisonicdecoder_p.h b/src/multimedia/spatial/qambisonicdecoder_p.h
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-/****************************************************************************
-**
-** Copyright (C) 2022 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-#ifndef QAMBISONICDECODER_P_H
-#define QAMBISONICDECODER_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API. It exists purely as an
-// implementation detail. This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <qtmultimediaglobal_p.h>
-#include <qaudioformat.h>
-
-QT_BEGIN_NAMESPACE
-
-struct QAmbisonicDecoderData;
-class QAmbisonicDecoderFilter;
-
-class QAmbisonicDecoder
-{
-public:
-    enum AmbisonicLevel
-    {
-        AmbisonicLevel1 = 1,
-        LowQuality = AmbisonicLevel1,
-        AmbisonicLevel2 = 2,
-        MediumQuality = AmbisonicLevel2,
-        AmbisonicLevel3 = 3,
-        HighQuality = AmbisonicLevel3
-    };
-    QAmbisonicDecoder(AmbisonicLevel ambisonicLevel, const QAudioFormat &format);
-
-    int nInputChannels() const { return inputChannels; }
-    int nOutputChannels() const { return outputChannels; }
-
-    int outputSize(int nSamples) const { return outputChannels * nSamples; }
-
-    // input is planar, output interleaved
-    void processBuffer(const float *input[], float *output, int nSamples);
-    void processBuffer(const float *input[], short *output, int nSamples);
-
-    static constexpr int maxAmbisonicChannels = 16;
-    static constexpr int maxAmbisonicLevel = 3;
-private:
-    QAudioFormat format;
-    AmbisonicLevel level = AmbisonicLevel1;
-    int inputChannels = 0;
-    int outputChannels = 0;
-    const QAmbisonicDecoderData *decoderData = nullptr;
-    QAmbisonicDecoderFilter *filters = nullptr;
-
-};
-
-
-QT_END_NAMESPACE
-
-#endif