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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef AUDIOCAPTURESESSION_H
#define AUDIOCAPTURESESSION_H
#include <QFile>
#include <QUrl>
#include <QDir>
#include "audioencodercontrol.h"
#include "audioinputselector.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 containerFormat() const;
void setContainerFormat(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
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