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author | Olivier Goffart <olivier.goffart@nokia.com> | 2010-05-17 18:00:03 (GMT) |
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committer | Olivier Goffart <olivier.goffart@nokia.com> | 2010-05-17 18:00:03 (GMT) |
commit | 91a1f7a1c408052b1d284d6b901819964e338fe5 (patch) | |
tree | df7103f0ea0cb9d98f4b641d72c0f8b0ebdf2498 /demos/spectrum/app/wavfile.h | |
parent | 94a3356d5eb7b255d439efe2699bf3a9b025e8eb (diff) | |
parent | 509ef11ab4ba6165c16d9d311c4a1bf7cdfd2528 (diff) | |
download | Qt-91a1f7a1c408052b1d284d6b901819964e338fe5.zip Qt-91a1f7a1c408052b1d284d6b901819964e338fe5.tar.gz Qt-91a1f7a1c408052b1d284d6b901819964e338fe5.tar.bz2 |
Merge remote branch 'origin/4.6' into qt-4.7-from-4.6
Conflicts:
demos/demos.pro
mkspecs/features/resources.prf
mkspecs/features/uic.prf
src/corelib/io/qurl.cpp
src/corelib/tools/qlocale_symbian.cpp
src/gui/graphicsview/qgraphicsscene.cpp
src/gui/graphicsview/qgraphicswidget_p.cpp
src/gui/graphicsview/qgraphicswidget_p.h
src/gui/util/qsystemtrayicon_win.cpp
src/multimedia/audio/qaudioinput.cpp
tests/auto/qhostinfo/qhostinfo.pro
Diffstat (limited to 'demos/spectrum/app/wavfile.h')
-rw-r--r-- | demos/spectrum/app/wavfile.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/demos/spectrum/app/wavfile.h b/demos/spectrum/app/wavfile.h new file mode 100644 index 0000000..05866f7 --- /dev/null +++ b/demos/spectrum/app/wavfile.h @@ -0,0 +1,80 @@ +/**************************************************************************** +** +** 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 + |