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28
29
30#ifndef WAVHEADER_H
31#define WAVHEADER_H
32
33#include <QtCore/qobject.h>
34#include <QtCore/qfile.h>
35#include <qaudioformat.h>
36
37/**
38 * Helper class for parsing WAV file headers.
39 *
40 * See https://ccrma.stanford.edu/courses/422/projects/WaveFormat/
41 */
42class WavHeader
43{
44public:
45 WavHeader(const QAudioFormat &format = QAudioFormat(),
46 qint64 dataLength = 0);
47
48 // Reads WAV header and seeks to start of data
49 bool read(QIODevice &device);
50
51 // Writes WAV header
52 bool write(QIODevice &device);
53
54 const QAudioFormat& format() const;
55 qint64 dataLength() const;
56
57 static qint64 headerLength();
58
59 static bool writeDataLength(QIODevice &device, qint64 dataLength);
60
61private:
62 QAudioFormat m_format;
63 qint64 m_dataLength;
64};
65
66#endif
67
68

source code of qtmultimedia/tests/auto/integration/qaudiooutput/wavheader.h