/**************************************************************************** ** ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** This file is part of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL21$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Digia. For licensing terms and ** conditions see http://qt.digia.com/licensing. For further information ** use the contact form at http://qt.digia.com/contact-us. ** ** 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 or version 3 as published by the Free ** Software Foundation and appearing in the file LICENSE.LGPLv21 and ** LICENSE.LGPLv3 included in the packaging of this file. Please review the ** following information to ensure the GNU Lesser General Public License ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Digia gives you certain additional ** rights. These rights are described in the Digia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qmediacontrol_p.h" #include "qaudiodecodercontrol.h" QT_BEGIN_NAMESPACE /*! \class QAudioDecoderControl \inmodule QtMultimedia \ingroup multimedia_control \brief The QAudioDecoderControl class provides access to the audio decoding functionality of a QMediaService. \preliminary The functionality provided by this control is exposed to application code through the QAudioDecoder class. The interface name of QAudioDecoderControl is \c org.qt-project.qt.audiodecodercontrol/5.0 as defined in QAudioDecoderControl_iid. \sa QMediaService::requestControl(), QAudioDecoder */ /*! \macro QAudioDecoderControl_iid \c org.qt-project.qt.audiodecodercontrol/5.0 Defines the interface name of the QAudioDecoderControl class. \relates QAudioDecoderControl */ /*! Destroys an audio decoder control. */ QAudioDecoderControl::~QAudioDecoderControl() { } /*! Constructs a new audio decoder control with the given \a parent. */ QAudioDecoderControl::QAudioDecoderControl(QObject *parent): QMediaControl(*new QMediaControlPrivate, parent) { } /*! \fn QAudioDecoderControl::state() const Returns the state of a player control. */ /*! \fn QAudioDecoderControl::stateChanged(QAudioDecoder::State state) Signals that the \a state of a player control has changed. \sa state() */ /*! \fn QAudioDecoderControl::sourceFilename() const Returns the current media source filename, or a null QString if none (or a device) */ /*! \fn QAudioDecoderControl::setSourceFilename(const QString &fileName) Sets the current source to \a fileName. Changing the source will stop any current decoding and discard any buffers. Sources are exclusive, so only one can be set. */ /*! \fn QAudioDecoderControl::sourceDevice() const Returns the current media source QIODevice, or 0 if none (or a file). */ /*! \fn QAudioDecoderControl::setSourceDevice(QIODevice *device) Sets the current source to \a device. Changing the source will stop any current decoding and discard any buffers. Sources are exclusive, so only one can be set. */ /*! \fn QAudioDecoderControl::start() Starts decoding the current media. If successful the player control will immediately enter the \l {QAudioDecoder::DecodingState} {decoding} state. \sa state(), read() */ /*! \fn QAudioDecoderControl::stop() Stops playback of the current media and discards any buffers. If successful the player control will immediately enter the \l {QAudioDecoder::StoppedState} {stopped} state. */ /*! \fn QAudioDecoderControl::error(int error, const QString &errorString) Signals that an \a error has occurred. The \a errorString provides a more detailed explanation. */ /*! \fn QAudioDecoderControl::bufferAvailableChanged(bool available) Signals that the bufferAvailable property has changed to \a available. */ /*! \fn QAudioDecoderControl::bufferReady() Signals that a new buffer is ready for reading. */ /*! \fn QAudioDecoderControl::bufferAvailable() const Returns true if a buffer is available to be read, and false otherwise. */ /*! \fn QAudioDecoderControl::sourceChanged() Signals that the current source of the decoder has changed. \sa sourceFilename(), sourceDevice() */ /*! \fn QAudioDecoderControl::formatChanged(const QAudioFormat &format) Signals that the current audio format of the decoder has changed to \a format. \sa audioFormat(), setAudioFormat() */ /*! \fn void QAudioDecoderControl::finished() Signals that the decoding has finished successfully. If decoding fails, error signal is emitted instead. \sa start(), stop(), error() */ /*! \fn void QAudioDecoderControl::positionChanged(qint64 position) Signals that the current \a position of the decoder has changed. \sa durationChanged() */ /*! \fn void QAudioDecoderControl::durationChanged(qint64 duration) Signals that the estimated \a duration of the decoded data has changed. \sa positionChanged() */ /*! \fn QAudioDecoderControl::audioFormat() const Returns the current audio format of the decoded stream. Any buffers returned should have this format. \sa setAudioFormat(), formatChanged() */ /*! \fn QAudioDecoderControl::setAudioFormat(const QAudioFormat &format) Set the desired audio format for decoded samples to \a format. If the decoder does not support this format, \l error() will be set to \c FormatError. If you do not specify a format, the format of the decoded audio itself will be used. Otherwise, some format conversion will be applied. If you wish to reset the decoded format to that of the original audio file, you can specify an invalid \a format. */ /*! \fn QAudioDecoderControl::read() Attempts to read a buffer from the decoder, without blocking. Returns invalid buffer if there are no decoded buffers available, or on error. */ /*! \fn QAudioDecoderControl::position() const Returns position (in milliseconds) of the last buffer read from the decoder or -1 if no buffers have been read. */ /*! \fn QAudioDecoderControl::duration() const Returns total duration (in milliseconds) of the audio stream or -1 if not available. */ #include "moc_qaudiodecodercontrol.cpp" QT_END_NAMESPACE