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author | Kurt Korbatits <kurt.korbatits@nokia.com> | 2010-05-18 00:11:45 (GMT) |
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committer | Kurt Korbatits <kurt.korbatits@nokia.com> | 2010-05-18 00:11:45 (GMT) |
commit | 5a4329b6844277e92286fc0ae6d4ec15dece2bf6 (patch) | |
tree | 995ed37b78e2b72cce660d8f02908f038c87cc46 /src/multimedia/audio/qaudio_symbian_p.h | |
parent | 6ff95852da22ba8843a2913c92aa37af36236ca0 (diff) | |
download | Qt-5a4329b6844277e92286fc0ae6d4ec15dece2bf6.zip Qt-5a4329b6844277e92286fc0ae6d4ec15dece2bf6.tar.gz Qt-5a4329b6844277e92286fc0ae6d4ec15dece2bf6.tar.bz2 |
Removed mediaservices.
Diffstat (limited to 'src/multimedia/audio/qaudio_symbian_p.h')
-rw-r--r-- | src/multimedia/audio/qaudio_symbian_p.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/src/multimedia/audio/qaudio_symbian_p.h b/src/multimedia/audio/qaudio_symbian_p.h new file mode 100644 index 0000000..d5238b4 --- /dev/null +++ b/src/multimedia/audio/qaudio_symbian_p.h @@ -0,0 +1,156 @@ +/**************************************************************************** +** +** 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 QAUDIO_SYMBIAN_P_H +#define QAUDIO_SYMBIAN_P_H + +#include <QtCore/qnamespace.h> +#include <QtMultimedia/qaudioformat.h> +#include <QtMultimedia/qaudio.h> +#include <sounddevice.h> + +QT_BEGIN_NAMESPACE + +namespace SymbianAudio { + +/** + * Default values used by audio input and output classes, when underlying + * DevSound instance has not yet been created. + */ + +const int DefaultBufferSize = 4096; // bytes +const int DefaultNotifyInterval = 1000; // ms + +/** + * Enumeration used to track state of internal DevSound instances. + * Values are translated to the corresponding QAudio::State values by + * SymbianAudio::Utils::stateNativeToQt. + */ +enum State { + ClosedState + , InitializingState + , ActiveState + , IdleState + , SuspendedState +}; + +/* + * Helper class for querying DevSound codec / format support + */ +class DevSoundCapabilities { +public: + DevSoundCapabilities(CMMFDevSound &devsound, QAudio::Mode mode); + ~DevSoundCapabilities(); + + const RArray<TFourCC>& fourCC() const { return m_fourCC; } + const TMMFCapabilities& caps() const { return m_caps; } + +private: + void constructL(CMMFDevSound &devsound, QAudio::Mode mode); + +private: + RArray<TFourCC> m_fourCC; + TMMFCapabilities m_caps; +}; + +namespace Utils { + +/** + * Convert native audio capabilities to QAudio lists. + */ +void capabilitiesNativeToQt(const DevSoundCapabilities &caps, + QList<int> &frequencies, + QList<int> &channels, + QList<int> &sampleSizes, + QList<QAudioFormat::Endian> &byteOrders, + QList<QAudioFormat::SampleType> &sampleTypes); + +/** + * Check whether format is supported. + */ +bool isFormatSupported(const QAudioFormat &format, + const DevSoundCapabilities &caps); + +/** + * Convert QAudioFormat to native format types. + * + * Note that, despite the name, DevSound uses TMMFCapabilities to specify + * single formats as well as capabilities. + * + * Note that this function does not modify outputFormat.iBufferSize. + */ +bool formatQtToNative(const QAudioFormat &inputFormat, + TUint32 &outputFourCC, + TMMFCapabilities &outputFormat); + +/** + * Convert internal states to QAudio states. + */ +QAudio::State stateNativeToQt(State nativeState, + QAudio::State initializingState); + +/** + * Convert data length to number of samples. + */ +qint64 bytesToSamples(const QAudioFormat &format, qint64 length); + +/** + * Convert number of samples to data length. + */ +qint64 samplesToBytes(const QAudioFormat &format, qint64 samples); + +} // namespace Utils +} // namespace SymbianAudio + +QT_END_NAMESPACE + +#endif |