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Diffstat (limited to 'src/multimediakit/audio/qaudioinput_symbian_p.h')
-rw-r--r-- | src/multimediakit/audio/qaudioinput_symbian_p.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/multimediakit/audio/qaudioinput_symbian_p.h b/src/multimediakit/audio/qaudioinput_symbian_p.h new file mode 100644 index 000000000..9f6128390 --- /dev/null +++ b/src/multimediakit/audio/qaudioinput_symbian_p.h @@ -0,0 +1,178 @@ +/**************************************************************************** +** +** 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 Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// 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 QAUDIOINPUT_SYMBIAN_P_H +#define QAUDIOINPUT_SYMBIAN_P_H + +#include <qaudiosystem.h> +#include <QTime> +#include <QTimer> +#include "qaudio_symbian_p.h" + +QT_BEGIN_NAMESPACE + +class QAudioInputPrivate; + +class SymbianAudioInputPrivate : public QIODevice +{ + friend class QAudioInputPrivate; + Q_OBJECT +public: + SymbianAudioInputPrivate(QAudioInputPrivate *audio); + ~SymbianAudioInputPrivate(); + + qint64 readData(char *data, qint64 len); + qint64 writeData(const char *data, qint64 len); + + void dataReady(); + +private: + QAudioInputPrivate *const m_audioDevice; +}; + +class QAudioInputPrivate + : public QAbstractAudioInput +{ + friend class SymbianAudioInputPrivate; + Q_OBJECT +public: + QAudioInputPrivate(const QByteArray &device); + ~QAudioInputPrivate(); + + // QAbstractAudioInput + void start(QIODevice *device); + QIODevice* start(); + void stop(); + void reset(); + void suspend(); + void resume(); + int bytesReady() const; + int periodSize() const; + void setBufferSize(int value); + int bufferSize() const; + void setNotifyInterval(int milliSeconds); + int notifyInterval() const; + qint64 processedUSecs() const; + qint64 elapsedUSecs() const; + QAudio::Error error() const; + QAudio::State state() const; + QAudioFormat format() const; + void setFormat(const QAudioFormat& fmt); + +private slots: + void notifyTimerExpired(); + void pullData(); + void devsoundInitializeComplete(int err); + void devsoundBufferToBeEmptied(CMMFBuffer *); + void devsoundRecordError(int err); + + +private: + void open(); + void startRecording(); + void startDataTransfer(); + CMMFDataBuffer* currentBuffer() const; + void pushData(); + qint64 read(char *data, qint64 len); + void bufferEmptied(); + Q_INVOKABLE void close(); + + qint64 getSamplesRecorded() const; + + void setError(QAudio::Error error); + void setState(SymbianAudio::State state); + +private: + const QByteArray m_device; + QAudioFormat m_format; + + int m_clientBufferSize; + int m_notifyInterval; + QScopedPointer<QTimer> m_notifyTimer; + qint64 m_lastNotifyPosition; + QTime m_elapsed; + QAudio::Error m_error; + + SymbianAudio::State m_internalState; + QAudio::State m_externalState; + + bool m_pullMode; + QIODevice *m_sink; + + QScopedPointer<QTimer> m_pullTimer; + + SymbianAudio::DevSoundWrapper* m_devSound; + + // Latest buffer provided by DevSound, to be empied of data. + CMMFDataBuffer *m_devSoundBuffer; + + int m_devSoundBufferSize; + + // Total amount of data in buffers provided by DevSound + int m_totalBytesReady; + + // Queue of buffers returned after call to CMMFDevSound::Pause(). + QList<CMMFDataBuffer *> m_devSoundBufferQ; + + // Current read position within m_devSoundBuffer + qint64 m_devSoundBufferPos; + + // Samples recorded up to the last call to suspend(). It is necessary + // to cache this because suspend() is implemented using + // CMMFDevSound::Stop(), which resets DevSound's SamplesRecorded() counter. + quint32 m_totalSamplesRecorded; + +}; + +QT_END_NAMESPACE + +#endif |