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Diffstat (limited to 'src/multimedia/audio/qaudioinput_symbian_p.h')
| -rw-r--r-- | src/multimedia/audio/qaudioinput_symbian_p.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/src/multimedia/audio/qaudioinput_symbian_p.h b/src/multimedia/audio/qaudioinput_symbian_p.h new file mode 100644 index 0000000000..7417655f64 --- /dev/null +++ b/src/multimedia/audio/qaudioinput_symbian_p.h @@ -0,0 +1,174 @@ +/**************************************************************************** +** +** 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 QAUDIOINPUT_SYMBIAN_P_H +#define QAUDIOINPUT_SYMBIAN_P_H + +#include <QtMultimedia/qaudioengine.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, + const QAudioFormat &audioFormat); + ~QAudioInputPrivate(); + + // QAbstractAudioInput + QIODevice* start(QIODevice *device = 0); + 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; + +private slots: + 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; + const QAudioFormat m_format; + + int m_clientBufferSize; + int m_notifyInterval; + QScopedPointer<QTimer> m_notifyTimer; + 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 |