/**************************************************************************** ** ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/ ** ** This file is part of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** 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. ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qaudiosystem.h" QT_BEGIN_NAMESPACE /*! \class QAbstractAudioDeviceInfo \brief The QAbstractAudioDeviceInfo class is a base class for audio backends. \ingroup multimedia \ingroup multimedia_audio \inmodule QtMultimedia \internal This class implements the audio functionality for QAudioDeviceInfo, i.e., QAudioDeviceInfo keeps a QAbstractAudioDeviceInfo and routes function calls to it. For a description of the functionality that QAbstractAudioDeviceInfo implements, you can read the class and functions documentation of QAudioDeviceInfo. \sa QAudioDeviceInfo \sa QAbstractAudioOutput, QAbstractAudioInput */ /*! \fn virtual QAudioFormat QAbstractAudioDeviceInfo::preferredFormat() const Returns the recommended settings to use. */ /*! \fn virtual bool QAbstractAudioDeviceInfo::isFormatSupported(const QAudioFormat& format) const Returns true if \a format is available from audio device. */ /*! \fn virtual QString QAbstractAudioDeviceInfo::deviceName() const Returns the audio device name. */ /*! \fn virtual QStringList QAbstractAudioDeviceInfo::supportedCodecs() Returns the list of currently available codecs. */ /*! \fn virtual QList QAbstractAudioDeviceInfo::supportedSampleRates() Returns the list of currently available sample rates. */ /*! \fn virtual QList QAbstractAudioDeviceInfo::supportedChannelCounts() Returns the list of currently available channels. */ /*! \fn virtual QList QAbstractAudioDeviceInfo::supportedSampleSizes() Returns the list of currently available sample sizes. */ /*! \fn virtual QList QAbstractAudioDeviceInfo::supportedByteOrders() Returns the list of currently available byte orders. */ /*! \fn virtual QList QAbstractAudioDeviceInfo::supportedSampleTypes() Returns the list of currently available sample types. */ /*! \class QAbstractAudioOutput \brief The QAbstractAudioOutput class is a base class for audio backends. \ingroup multimedia \inmodule QtMultimedia \internal QAbstractAudioOutput implements audio functionality for QAudioOutput, i.e., QAudioOutput routes function calls to QAbstractAudioOutput. For a description of the functionality that is implemented, see the QAudioOutput class and function descriptions. \sa QAudioOutput */ /*! \fn virtual void QAbstractAudioOutput::start(QIODevice* device) Uses the \a device as the QIODevice to transfer data. */ /*! \fn virtual QIODevice* QAbstractAudioOutput::start() Returns a pointer to the QIODevice being used to handle the data transfer. This QIODevice can be used to write() audio data directly. */ /*! \fn virtual void QAbstractAudioOutput::stop() Stops the audio output. */ /*! \fn virtual void QAbstractAudioOutput::reset() Drops all audio data in the buffers, resets buffers to zero. */ /*! \fn virtual void QAbstractAudioOutput::suspend() Stops processing audio data, preserving buffered audio data. */ /*! \fn virtual void QAbstractAudioOutput::resume() Resumes processing audio data after a suspend() */ /*! \fn virtual int QAbstractAudioOutput::bytesFree() const Returns the free space available in bytes in the audio buffer. */ /*! \fn virtual int QAbstractAudioOutput::periodSize() const Returns the period size in bytes. */ /*! \fn virtual void QAbstractAudioOutput::setBufferSize(int value) Sets the audio buffer size to \a value in bytes. */ /*! \fn virtual int QAbstractAudioOutput::bufferSize() const Returns the audio buffer size in bytes. */ /*! \fn virtual void QAbstractAudioOutput::setNotifyInterval(int ms) Sets the interval for notify() signal to be emitted. This is based on the \a ms of audio data processed not on actual real-time. The resolution of the timer is platform specific. */ /*! \fn virtual int QAbstractAudioOutput::notifyInterval() const Returns the notify interval in milliseconds. */ /*! \fn virtual qint64 QAbstractAudioOutput::processedUSecs() const Returns the amount of audio data processed since start() was called in milliseconds. */ /*! \fn virtual qint64 QAbstractAudioOutput::elapsedUSecs() const Returns the milliseconds since start() was called, including time in Idle and suspend states. */ /*! \fn virtual QAudio::Error QAbstractAudioOutput::error() const Returns the error state. */ /*! \fn virtual QAudio::State QAbstractAudioOutput::state() const Returns the state of audio processing. */ /*! \fn virtual void QAbstractAudioOutput::setFormat(const QAudioFormat& fmt) Set the QAudioFormat to use to \a fmt. Setting the format is only allowable while in QAudio::StoppedState. */ /*! \fn virtual QAudioFormat QAbstractAudioOutput::format() const Returns the QAudioFormat being used. */ /*! \fn virtual void QAbstractAudioOutput::setVolume(qreal volume) Sets the volume. Where \a volume is between 0.0 and 1.0. */ /*! \fn virtual qreal QAbstractAudioOutput::volume() const Returns the volume in the range 0.0 and 1.0. */ /*! \fn QAbstractAudioOutput::errorChanged(QAudio::Error error) This signal is emitted when the \a error state has changed. */ /*! \fn QAbstractAudioOutput::stateChanged(QAudio::State state) This signal is emitted when the device \a state has changed. */ /*! \fn QAbstractAudioOutput::notify() This signal is emitted when x ms of audio data has been processed the interval set by setNotifyInterval(x). */ /*! \class QAbstractAudioInput \brief The QAbstractAudioInput class provides access for QAudioInput to access the audio device provided by the plugin. \ingroup multimedia \inmodule QtMultimedia \internal QAudioDeviceInput keeps an instance of QAbstractAudioInput and routes calls to functions of the same name to QAbstractAudioInput. This means that it is QAbstractAudioInput that implements the audio functionality. For a description of the functionality, see the QAudioInput class description. \sa QAudioInput */ /*! \fn virtual void QAbstractAudioInput::start(QIODevice* device) Uses the \a device as the QIODevice to transfer data. */ /*! \fn virtual QIODevice* QAbstractAudioInput::start() Returns a pointer to the QIODevice being used to handle the data transfer. This QIODevice can be used to read() audio data directly. */ /*! \fn virtual void QAbstractAudioInput::stop() Stops the audio input. */ /*! \fn virtual void QAbstractAudioInput::reset() Drops all audio data in the buffers, resets buffers to zero. */ /*! \fn virtual void QAbstractAudioInput::suspend() Stops processing audio data, preserving buffered audio data. */ /*! \fn virtual void QAbstractAudioInput::resume() Resumes processing audio data after a suspend(). */ /*! \fn virtual int QAbstractAudioInput::bytesReady() const Returns the amount of audio data available to read in bytes. */ /*! \fn virtual int QAbstractAudioInput::periodSize() const Returns the period size in bytes. */ /*! \fn virtual void QAbstractAudioInput::setBufferSize(int value) Sets the audio buffer size to \a value in milliseconds. */ /*! \fn virtual int QAbstractAudioInput::bufferSize() const Returns the audio buffer size in milliseconds. */ /*! \fn virtual void QAbstractAudioInput::setNotifyInterval(int ms) Sets the interval for notify() signal to be emitted. This is based on the \a ms of audio data processed not on actual real-time. The resolution of the timer is platform specific. */ /*! \fn virtual int QAbstractAudioInput::notifyInterval() const Returns the notify interval in milliseconds. */ /*! \fn virtual qint64 QAbstractAudioInput::processedUSecs() const Returns the amount of audio data processed since start() was called in milliseconds. */ /*! \fn virtual qint64 QAbstractAudioInput::elapsedUSecs() const Returns the milliseconds since start() was called, including time in Idle and suspend states. */ /*! \fn virtual QAudio::Error QAbstractAudioInput::error() const Returns the error state. */ /*! \fn virtual QAudio::State QAbstractAudioInput::state() const Returns the state of audio processing. */ /*! \fn virtual void QAbstractAudioInput::setFormat(const QAudioFormat& fmt) Set the QAudioFormat to use to \a fmt. Setting the format is only allowable while in QAudio::StoppedState. */ /*! \fn virtual QAudioFormat QAbstractAudioInput::format() const Returns the QAudioFormat being used */ /*! \fn QAbstractAudioInput::errorChanged(QAudio::Error error) This signal is emitted when the \a error state has changed. */ /*! \fn QAbstractAudioInput::stateChanged(QAudio::State state) This signal is emitted when the device \a state has changed. */ /*! \fn QAbstractAudioInput::notify() This signal is emitted when x ms of audio data has been processed the interval set by setNotifyInterval(x). */ QT_END_NAMESPACE #include "moc_qaudiosystem.cpp"