83a68761f2
Source code and graphics are not for running. Change-Id: I3b015b3cefd70329036c044f1b6c478d50453054 Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com> Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef WAVHEADER_H
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#define WAVHEADER_H
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#include <QtCore/qobject.h>
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#include <QtCore/qfile.h>
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#include <qaudioformat.h>
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/**
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* Helper class for parsing WAV file headers.
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*
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* See https://ccrma.stanford.edu/courses/422/projects/WaveFormat/
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*/
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class WavHeader
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{
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public:
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WavHeader(const QAudioFormat &format = QAudioFormat(),
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qint64 dataLength = 0);
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// Reads WAV header and seeks to start of data
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bool read(QIODevice &device);
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// Writes WAV header
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bool write(QIODevice &device);
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const QAudioFormat& format() const;
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qint64 dataLength() const;
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static qint64 headerLength();
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static bool writeDataLength(QIODevice &device, qint64 dataLength);
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private:
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QAudioFormat m_format;
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qint64 m_dataLength;
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};
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#endif
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