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The reason for moving the implementation out from CSoundGenerator into its own class is, because CSoundGenerator was a very complex and obscure class. It mixed many tasks in one place. CSelcalPlayer is designed to play SELCALs only. The following design changes have been made, compared to CSoundGenerator: * Use pull mode instead of push mode. QBuffer is used as the QIODevice and is a wrapper around QByteArray. Therefore it is not necessary to implement our own QIODevice. * Internally it uses a CThreadedSelcalPlayer to relieve the load of the main thread. CThreadedSelcalPlayer inherits CContinuousWorker, no low level QThread implementation was necessary. * Push mode was not implemented. * It is important that the QAudioOutput is allocated in the worker thread. QAudioOutput allocates internal objects, which cannot be moved to the worker thread. * Data caching. The generated seclal audio data is cached. refs #736
48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
/* Copyright (C) 2016
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* swift project Community / Contributors
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*
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* This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
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* directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
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* including this file, may be copied, modified, propagated, or distributed except according to the terms
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* contained in the LICENSE file.
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*/
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//! \file
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#ifndef BLACKSOUND_SELCALPLAYER_H
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#define BLACKSOUND_SELCALPLAYER_H
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#include "blacksoundexport.h"
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#include "blacksound/threadedtonepairplayer.h"
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#include "blacksound/tonepair.h"
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#include "blackmisc/aviation/selcal.h"
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#include "blackmisc/worker.h"
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#include <QAudioDeviceInfo>
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class QTimer;
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namespace BlackSound
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{
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//! SELCAL player
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class BLACKSOUND_EXPORT CSelcalPlayer : public QObject
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{
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Q_OBJECT
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public:
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//! Constructor
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CSelcalPlayer(const QAudioDeviceInfo &device = QAudioDeviceInfo::defaultOutputDevice(), QObject *parent = nullptr);
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//! Destructor
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~CSelcalPlayer();
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//! Play selcal
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void play(int volume, const BlackMisc::Aviation::CSelcal &selcal);
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private:
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CThreadedTonePairPlayer m_threadedPlayer;
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};
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}
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#endif // guard
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