/**************************************************************************** ** ** 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 QAUDIOOUTPUTWIN_H #define QAUDIOOUTPUTWIN_H #include #include #include #include #include #include #include #include #include #include QT_BEGIN_NAMESPACE class QAudioOutputPrivate : public QAbstractAudioOutput { Q_OBJECT public: QAudioOutputPrivate(const QByteArray &device, const QAudioFormat& audioFormat); ~QAudioOutputPrivate(); qint64 write( const char *data, qint64 len ); QAudioFormat format() const; 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; QIODevice* audioSource; QAudioFormat settings; QAudio::Error errorState; QAudio::State deviceState; private slots: void feedback(); bool deviceReady(); private: QByteArray m_device; bool resuming; int bytesAvailable; QTime timeStamp; qint64 elapsedTimeOffset; QTime timeStampOpened; qint32 buffer_size; qint32 period_size; qint64 totalTimeValue; bool pullMode; int intervalTime; static void QT_WIN_CALLBACK waveOutProc( HWAVEOUT hWaveOut, UINT uMsg, DWORD dwInstance, DWORD dwParam1, DWORD dwParam2 ); CRITICAL_SECTION waveOutCriticalSection; WAVEHDR* allocateBlocks(int size, int count); void freeBlocks(WAVEHDR* blockArray); bool open(); void close(); WAVEFORMATEX wfx; HWAVEOUT hWaveOut; MMRESULT result; WAVEHDR header; WAVEHDR* waveBlocks; volatile bool finished; volatile int waveFreeBlockCount; int waveCurrentBlock; char* audioBuffer; }; class OutputPrivate : public QIODevice { Q_OBJECT public: OutputPrivate(QAudioOutputPrivate* audio); ~OutputPrivate(); qint64 readData( char* data, qint64 len); qint64 writeData(const char* data, qint64 len); private: QAudioOutputPrivate *audioDevice; }; QT_END_NAMESPACE #endif