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#ifndef AUDIOCAPTURESESSION_H

#define AUDIOCAPTURESESSION_H

#include <QFile>

#include <QUrl>

#include <QDir>

#include "audioencodercontrol.h"

#include "audioendpointselector.h"

#include "audiomediarecordercontrol.h"

#include <qaudioformat.h>

#include <qaudioinput.h>

#include <qaudiodeviceinfo.h>

QT_USE_NAMESPACE

class AudioCaptureSession : public QObject

{

    Q_OBJECT

public:

    AudioCaptureSession(QObject *parent = 0);

    ~AudioCaptureSession();

    QAudioFormat format() const;

    QAudioDeviceInfo* deviceInfo() const;

    bool isFormatSupported(const QAudioFormat &format) const;

    bool setFormat(const QAudioFormat &format);

    QStringList supportedContainers() const;

    QString containerMimeType() const;

    void setContainerMimeType(const QString &formatMimeType);

    QString containerDescription(const QString &formatMimeType) const;

    QUrl outputLocation() const;

    bool setOutputLocation(const QUrl& sink);

    qint64 position() const;

    int state() const;

    void record();

    void pause();

    void stop();

public slots:

    void setCaptureDevice(const QString &deviceName);

signals:

    void stateChanged(QMediaRecorder::State state);

    void positionChanged(qint64 position);

    void error(int error, const QString &errorString);

private slots:

    void stateChanged(QAudio::State state);

    void notify();

private:

    QDir defaultDir() const;

    QString generateFileName(const QDir &dir, const QString &ext) const;

    QFile file;

    QString m_captureDevice;

    QUrl m_sink;

    QUrl m_actualSink;

    QMediaRecorder::State m_state;

    QAudioInput *m_audioInput;

    QAudioDeviceInfo *m_deviceInfo;

    QAudioFormat m_format;

    qint64 m_position;

    bool wavFile;

    // WAV header stuff

    struct chunk

    {

        char        id[4];

        quint32     size;

    };

    struct RIFFHeader

    {

        chunk       descriptor;

        char        type[4];

    };

    struct WAVEHeader

    {

        chunk       descriptor;

        quint16     audioFormat;        // PCM = 1

        quint16     numChannels;

        quint32     sampleRate;

        quint32     byteRate;

        quint16     blockAlign;

        quint16     bitsPerSample;

    };

    struct DATAHeader

    {

        chunk       descriptor;

//        quint8      data[];

    };

    struct CombinedHeader

    {

        RIFFHeader  riff;

        WAVEHeader  wave;

        DATAHeader  data;

    };

    CombinedHeader      header;

};

#endif