--- a/src/plugins/audio/symbian/symbianaudiooutput.h Fri Apr 16 15:50:13 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,199 +0,0 @@
-/****************************************************************************
-**
-** 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.
-**
-**
-**
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef SYMBIANAUDIOOUTPUT_H
-#define SYMBIANAUDIOOUTPUT_H
-
-#include <QtMultimedia/qaudioengine.h>
-#include <QTime>
-#include <QTimer>
-#include <sounddevice.h>
-#include "symbianaudio.h"
-
-QT_BEGIN_NAMESPACE
-
-class SymbianAudioOutput;
-
-class SymbianAudioOutputPrivate : public QIODevice
-{
- friend class SymbianAudioOutput;
- Q_OBJECT
-public:
- SymbianAudioOutputPrivate(SymbianAudioOutput *audio);
- ~SymbianAudioOutputPrivate();
-
- qint64 readData(char *data, qint64 len);
- qint64 writeData(const char *data, qint64 len);
-
-private:
- SymbianAudioOutput *const m_audioDevice;
-};
-
-class SymbianAudioOutput
- : public QAbstractAudioOutput
- , public MDevSoundObserver
-{
- friend class SymbianAudioOutputPrivate;
- Q_OBJECT
-public:
- SymbianAudioOutput(const QByteArray &device,
- const QAudioFormat &audioFormat);
- ~SymbianAudioOutput();
-
- // QAbstractAudioOutput
- QIODevice* start(QIODevice *device = 0);
- void stop();
- void reset();
- void suspend();
- void resume();
- int bytesFree() 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;
-
- // MDevSoundObserver
- void InitializeComplete(TInt aError);
- void ToneFinished(TInt aError);
- void BufferToBeFilled(CMMFBuffer *aBuffer);
- void PlayError(TInt aError);
- void BufferToBeEmptied(CMMFBuffer *aBuffer);
- void RecordError(TInt aError);
- void ConvertError(TInt aError);
- void DeviceMessage(TUid aMessageType, const TDesC8 &aMsg);
-
-private slots:
- void dataReady();
- void underflowTimerExpired();
-
-private:
- void open();
- void startPlayback();
- void startDevSoundL();
- void writePaddingData();
- qint64 pushData(const char *data, qint64 len);
- void pullData();
- void bufferFilled();
- void lastBufferFilled();
- Q_INVOKABLE void close();
-
- qint64 getSamplesPlayed() const;
-
- void setError(QAudio::Error error);
- void setState(SymbianAudio::State state);
-
- bool isDataReady() const;
- QAudio::State initializingState() const;
-
-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_source;
-
- QScopedPointer<CMMFDevSound> m_devSound;
- TUint32 m_nativeFourCC;
- TMMFCapabilities m_nativeFormat;
-
- // Buffer provided by DevSound, to be filled with data.
- CMMFDataBuffer *m_devSoundBuffer;
-
- int m_devSoundBufferSize;
-
- // Number of bytes transferred from QIODevice to QAudioOutput. It is
- // necessary to count this because data is dropped when suspend() is
- // called. The difference between the position reported by DevSound and
- // this value allows us to calculate m_bytesPadding;
- quint32 m_bytesWritten;
-
- // True if client has provided data while the audio subsystem was not
- // ready to consume it.
- bool m_pushDataReady;
-
- // Number of zero bytes which will be written when client calls resume().
- quint32 m_bytesPadding;
-
- // True if PlayError(KErrUnderflow) has been called.
- bool m_underflow;
-
- // True if a buffer marked with the "last buffer" flag has been provided
- // to DevSound.
- bool m_lastBuffer;
-
- // Some DevSound implementations ignore all underflow errors raised by the
- // audio driver, unless the last buffer flag has been set by the client.
- // In push-mode playback, this flag will never be set, so the underflow
- // error will never be reported. In order to work around this, a timer
- // is used, which gets reset every time the client provides more data. If
- // the timer expires, an underflow error is raised by this object.
- QScopedPointer<QTimer> m_underflowTimer;
-
- // Result of previous call to CMMFDevSound::SamplesPlayed(). This value is
- // used to determine whether, when m_underflowTimer expires, an
- // underflow error has actually occurred.
- quint32 m_samplesPlayed;
-
- // Samples played up to the last call to suspend(). It is necessary
- // to cache this because suspend() is implemented using
- // CMMFDevSound::Stop(), which resets DevSound's SamplesPlayed() counter.
- quint32 m_totalSamplesPlayed;
-
-};
-
-QT_END_NAMESPACE
-
-#endif