bbfccc7135
Qt copyrights are now in The Qt Company, so we could update the source code headers accordingly. In the same go we should also fix the links to point to qt.io. Change-Id: I1c6faa4f59f8eca54f01ef20941fa60161dd7872 Reviewed-by: Yoann Lopes <yoann.lopes@theqtcompany.com>
159 lines
4.2 KiB
C++
159 lines
4.2 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists for the convenience
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// of other Qt classes. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#ifndef QAUDIOOUTPUTALSA_H
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#define QAUDIOOUTPUTALSA_H
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#include <alsa/asoundlib.h>
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#include <QtCore/qfile.h>
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#include <QtCore/qdebug.h>
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#include <QtCore/qtimer.h>
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#include <QtCore/qstring.h>
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#include <QtCore/qstringlist.h>
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#include <QtCore/qdatetime.h>
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#include <QtCore/qiodevice.h>
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#include <QtMultimedia/qaudio.h>
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#include <QtMultimedia/qaudiodeviceinfo.h>
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#include <QtMultimedia/qaudiosystem.h>
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QT_BEGIN_NAMESPACE
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class QAlsaAudioOutput : public QAbstractAudioOutput
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{
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friend class AlsaOutputPrivate;
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Q_OBJECT
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public:
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QAlsaAudioOutput(const QByteArray &device);
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~QAlsaAudioOutput();
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qint64 write( const char *data, qint64 len );
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void start(QIODevice* device);
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QIODevice* start();
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void stop();
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void reset();
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void suspend();
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void resume();
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int bytesFree() const;
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int periodSize() const;
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void setBufferSize(int value);
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int bufferSize() const;
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void setNotifyInterval(int milliSeconds);
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int notifyInterval() const;
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qint64 processedUSecs() const;
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qint64 elapsedUSecs() const;
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QAudio::Error error() const;
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QAudio::State state() const;
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void setFormat(const QAudioFormat& fmt);
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QAudioFormat format() const;
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void setVolume(qreal);
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qreal volume() const;
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QIODevice* audioSource;
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QAudioFormat settings;
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QAudio::Error errorState;
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QAudio::State deviceState;
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private slots:
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void userFeed();
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bool deviceReady();
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signals:
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void processMore();
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private:
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bool opened;
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bool pullMode;
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bool resuming;
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int buffer_size;
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int period_size;
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int intervalTime;
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qint64 totalTimeValue;
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unsigned int buffer_time;
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unsigned int period_time;
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snd_pcm_uframes_t buffer_frames;
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snd_pcm_uframes_t period_frames;
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int xrun_recovery(int err);
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int setFormat();
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bool open();
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void close();
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QTimer* timer;
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QByteArray m_device;
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int bytesAvailable;
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QTime timeStamp;
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QTime clockStamp;
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qint64 elapsedTimeOffset;
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char* audioBuffer;
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snd_pcm_t* handle;
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snd_pcm_access_t access;
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snd_pcm_format_t pcmformat;
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snd_pcm_hw_params_t *hwparams;
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qreal m_volume;
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};
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class AlsaOutputPrivate : public QIODevice
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{
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friend class QAlsaAudioOutput;
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Q_OBJECT
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public:
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AlsaOutputPrivate(QAlsaAudioOutput* audio);
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~AlsaOutputPrivate();
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qint64 readData( char* data, qint64 len);
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qint64 writeData(const char* data, qint64 len);
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private:
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QAlsaAudioOutput *audioDevice;
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};
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QT_END_NAMESPACE
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#endif
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