/**************************************************************************** ** ** Copyright (C) 2021 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:COMM$ ** ** 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 The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** $QT_END_LICENSE$ ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ****************************************************************************/ #include "qmediaservice.h" #include "qmediaservice_p.h" #include QT_BEGIN_NAMESPACE /*! \class QMediaService \obsolete \brief The QMediaService class provides a common base class for media service implementations. \ingroup multimedia \ingroup multimedia_control \ingroup multimedia_core \inmodule QtMultimedia Media services provide implementations of the functionality promised by media objects, and allow multiple providers to implement a QMediaObject. To provide the functionality of a QMediaObject media services implement QMediaControl interfaces. Services typically implement one core media control which provides the core feature of a media object, and some number of additional controls which provide either optional features of the media object, or features of a secondary media object or peripheral object. A pointer to media service's QMediaControl implementation can be obtained by passing the control's interface name to the requestControl() function. \snippet multimedia-snippets/media.cpp Request control Media objects can use services loaded dynamically from plug-ins or implemented statically within an applications. Plug-in based services should also implement the QMediaServiceProviderPlugin interface. Static services should implement the QMediaServiceProvider interface. In general, implementing a QMediaService is outside of the scope of this documentation and support on the relevant mailing lists or IRC channels should be sought. \sa QMediaObject, QMediaControl */ /*! Construct a media service with the given \a parent. This class is meant as a base class for Multimedia services so this constructor is protected. */ QMediaService::QMediaService(QObject *parent) : QObject(*new QMediaServicePrivate, parent) { } /*! \internal */ QMediaService::QMediaService(QMediaServicePrivate &dd, QObject *parent) : QObject(dd, parent) { } /*! Destroys a media service. */ QMediaService::~QMediaService() { } /*! \fn QMediaControl* QMediaService::requestControl(const char *interface) Returns a pointer to the media control implementing \a interface. If the service does not implement the control, or if it is unavailable a null pointer is returned instead. Controls must be returned to the service when no longer needed using the releaseControl() function. */ /*! \fn T QMediaService::requestControl() Returns a pointer to the media control of type T implemented by a media service. If the service does not implement the control, or if it is unavailable a null pointer is returned instead. Controls must be returned to the service when no longer needed using the releaseControl() function. */ /*! \fn void QMediaService::releaseControl(QMediaControl *control); Releases a \a control back to the service. */ QT_END_NAMESPACE #include "moc_qmediaservice.cpp"