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authorOlivier Goffart <olivier.goffart@nokia.com>2010-05-19 13:31:25 (GMT)
committerOlivier Goffart <olivier.goffart@nokia.com>2010-05-19 13:31:25 (GMT)
commit78dcac759d500c1744751955623b1d0babcd37a4 (patch)
tree59d7a2540c2fcffe0b274afbf85db9a1f53242f4 /demos/spectrum/app/wavfile.h
parentf1c79b3c90c1e14d8bee0228e3e416fa5337cf6e (diff)
parentde0858687898f6e0e54cce3f986779c7aa1a350e (diff)
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Merge remote branch 'origin/4.7' into HEAD
Conflicts: src/corelib/tools/qlocale_symbian.cpp
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+/****************************************************************************
+**
+** 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 examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are met:
+** - Redistributions of source code must retain the above copyright notice,
+** this list of conditions and the following disclaimer.
+** - Redistributions in binary form must reproduce the above copyright notice,
+** this list of conditions and the following disclaimer in the documentation
+** and/or other materials provided with the distribution.
+** - Neither the name of Nokia Corporation and its Subsidiary(-ies) nor the
+** names of its contributors may be used to endorse or promote products
+** derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+** ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+** LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+** INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+** CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+** ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+** POSSIBILITY OF SUCH DAMAGE.
+** $QT_END_LICENSE$
+**
+*****************************************************************************/
+
+
+#ifndef WAVFILE_H
+#define WAVFILE_H
+
+#include <QtCore/qobject.h>
+#include <QtCore/qfile.h>
+#include <QtMultimedia/qaudioformat.h>
+
+/**
+ * Helper class for reading WAV files
+ *
+ * See https://ccrma.stanford.edu/courses/422/projects/WaveFormat/
+ */
+class WavFile
+{
+public:
+ WavFile(const QAudioFormat &format = QAudioFormat(),
+ qint64 dataLength = 0);
+
+ // Reads WAV header and seeks to start of data
+ bool readHeader(QIODevice &device);
+
+ // Writes WAV header
+ bool writeHeader(QIODevice &device);
+
+ // Read PCM data
+ qint64 readData(QIODevice &device, QByteArray &buffer,
+ QAudioFormat outputFormat = QAudioFormat());
+
+ const QAudioFormat& format() const;
+ qint64 dataLength() const;
+
+ static qint64 headerLength();
+
+ static bool writeDataLength(QIODevice &device, qint64 dataLength);
+
+private:
+ QAudioFormat m_format;
+ qint64 m_dataLength;
+};
+
+#endif
+