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#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