Restructure the source code a little.

Change-Id: I995b0fb33bdda7f01bf6266c1c50a1b17eba6760
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>

1 files changed, 141 insertions, 0 deletions

diff --git a/src/multimedia/audio/qwavedecoder_p.h b/src/multimedia/audio/qwavedecoder_p.h
new file mode 100644
index 000000000..1a7bef945
--- /dev/null
+++ b/src/multimedia/audio/qwavedecoder_p.h
@@ -0,0 +1,141 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef WAVEDECODER_H
+#define WAVEDECODER_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/qiodevice.h>
+#include <qaudioformat.h>
+
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Multimedia)
+
+
+
+class QWaveDecoder : public QIODevice
+{
+    Q_OBJECT
+
+public:
+    explicit QWaveDecoder(QIODevice *source, QObject *parent = 0);
+    ~QWaveDecoder();
+
+    QAudioFormat audioFormat() const;
+    int duration() const;
+
+    qint64 size() const;
+    bool isSequential() const;
+    qint64 bytesAvailable() const;
+
+Q_SIGNALS:
+    void formatKnown();
+    void parsingError();
+
+private Q_SLOTS:
+    void handleData();
+
+private:
+    qint64 readData(char *data, qint64 maxlen);
+    qint64 writeData(const char *data, qint64 len);
+
+    bool enoughDataAvailable();
+    bool findChunk(const char *chunkId);
+    void discardBytes(qint64 numBytes);
+    void parsingFailed();
+
+    enum State {
+        InitialState,
+        WaitingForFormatState,
+        WaitingForDataState
+    };
+
+    struct chunk
+    {
+        char        id[4];
+        quint32     size;
+    };
+    bool peekChunk(chunk* pChunk);
+
+    struct RIFFHeader
+    {
+        chunk       descriptor;
+        char        type[4];
+    };
+    struct WAVEHeader
+    {
+        chunk       descriptor;
+        quint16     audioFormat;
+        quint16     numChannels;
+        quint32     sampleRate;
+        quint32     byteRate;
+        quint16     blockAlign;
+        quint16     bitsPerSample;
+    };
+
+    bool haveFormat;
+    qint64 dataSize;
+    QAudioFormat format;
+    QIODevice *source;
+    State state;
+    quint32 junkToSkip;
+    bool bigEndian;
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // WAVEDECODER_H