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/****************************************************************************
**
** 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 QtMultimedia module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#ifndef QAUDIODEVICEINFOALSA_H
#define QAUDIODEVICEINFOALSA_H
#include <alsa/asoundlib.h>
#include <QtCore/qbytearray.h>
#include <QtCore/qstringlist.h>
#include <QtCore/qlist.h>
#include <QtCore/qdebug.h>
#include <QtMultimedia/qaudio.h>
#include <QtMultimedia/qaudiodeviceinfo.h>
#include <QtMultimedia/qaudioengine.h>
QT_BEGIN_NAMESPACE
const unsigned int MAX_SAMPLE_RATES = 5;
const unsigned int SAMPLE_RATES[] =
{ 8000, 11025, 22050, 44100, 48000 };
class QAudioDeviceInfoInternal : public QAbstractAudioDeviceInfo
{
Q_OBJECT
public:
QAudioDeviceInfoInternal(QByteArray dev,QAudio::Mode mode);
~QAudioDeviceInfoInternal();
bool testSettings(const QAudioFormat& format) const;
void updateLists();
QAudioFormat preferredFormat() const;
bool isFormatSupported(const QAudioFormat& format) const;
QAudioFormat nearestFormat(const QAudioFormat& format) const;
QString deviceName() const;
QStringList codecList();
QList<int> frequencyList();
QList<int> channelsList();
QList<int> sampleSizeList();
QList<QAudioFormat::Endian> byteOrderList();
QList<QAudioFormat::SampleType> sampleTypeList();
static QByteArray defaultInputDevice();
static QByteArray defaultOutputDevice();
static QList<QByteArray> availableDevices(QAudio::Mode);
private:
bool open();
void close();
QString device;
QAudio::Mode mode;
QAudioFormat nearest;
QList<int> freqz;
QList<int> channelz;
QList<int> sizez;
QList<QAudioFormat::Endian> byteOrderz;
QStringList codecz;
QList<QAudioFormat::SampleType> typez;
snd_pcm_t* handle;
snd_pcm_hw_params_t *params;
};
QT_END_NAMESPACE
#endif
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