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Diffstat (limited to 'src/plugins/qdeclarativemodules/multimedia/qdeclarativemediabase.cpp')
| -rw-r--r-- | src/plugins/qdeclarativemodules/multimedia/qdeclarativemediabase.cpp | 413 |
1 files changed, 413 insertions, 0 deletions
diff --git a/src/plugins/qdeclarativemodules/multimedia/qdeclarativemediabase.cpp b/src/plugins/qdeclarativemodules/multimedia/qdeclarativemediabase.cpp new file mode 100644 index 0000000..8e87e44 --- /dev/null +++ b/src/plugins/qdeclarativemodules/multimedia/qdeclarativemediabase.cpp @@ -0,0 +1,413 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the plugins 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qdeclarativemediabase_p.h" + +#include <QtCore/qcoreevent.h> +#include <QtCore/qurl.h> + +#include <QtMultimedia/qmediaplayercontrol.h> +#include <QtMultimedia/qmediaservice.h> +#include <QtMultimedia/qmediaserviceprovider.h> +#include <QtMultimedia/qmetadatacontrol.h> +#include "qmetadatacontrolmetaobject_p.h" + + + +QT_BEGIN_NAMESPACE + + +class QDeclarativeMediaBaseObject : public QMediaObject +{ +public: + QDeclarativeMediaBaseObject(QMediaService *service) + : QMediaObject(0, service) + { + } +}; + +class QDeclarativeMediaBasePlayerControl : public QMediaPlayerControl +{ +public: + QDeclarativeMediaBasePlayerControl(QObject *parent) + : QMediaPlayerControl(parent) + { + } + + QMediaPlayer::State state() const { return QMediaPlayer::StoppedState; } + QMediaPlayer::MediaStatus mediaStatus() const { return QMediaPlayer::NoMedia; } + + qint64 duration() const { return 0; } + qint64 position() const { return 0; } + void setPosition(qint64) {} + int volume() const { return 0; } + void setVolume(int) {} + bool isMuted() const { return false; } + void setMuted(bool) {} + int bufferStatus() const { return 0; } + bool isAudioAvailable() const { return false; } + bool isVideoAvailable() const { return false; } + bool isSeekable() const { return false; } + QMediaTimeRange availablePlaybackRanges() const { return QMediaTimeRange(); } + qreal playbackRate() const { return 1; } + void setPlaybackRate(qreal) {} + QMediaContent media() const { return QMediaContent(); } + const QIODevice *mediaStream() const { return 0; } + void setMedia(const QMediaContent &, QIODevice *) {} + + void play() {} + void pause() {} + void stop() {} +}; + +class QDeclarativeMediaBaseAnimation : public QObject +{ +public: + QDeclarativeMediaBaseAnimation(QDeclarativeMediaBase *media) + : m_media(media) + { + } + + void start() { if (!m_timer.isActive()) m_timer.start(500, this); } + void stop() { m_timer.stop(); } + +protected: + void timerEvent(QTimerEvent *event) + { + if (event->timerId() == m_timer.timerId()) { + event->accept(); + + if (m_media->m_state == QMediaPlayer::PlayingState) + emit m_media->positionChanged(); + if (m_media->m_status == QMediaPlayer::BufferingMedia || QMediaPlayer::StalledMedia) + emit m_media->bufferProgressChanged(); + } else { + QObject::timerEvent(event); + } + } + +private: + QDeclarativeMediaBase *m_media; + QBasicTimer m_timer; +}; + +void QDeclarativeMediaBase::_q_stateChanged(QMediaPlayer::State state) +{ + if (state != m_state) { + QMediaPlayer::State oldState = m_state; + + m_state = state; + + if (state == QMediaPlayer::StoppedState) { + emit stopped(); + emit playingChanged(); + } else if (oldState == QMediaPlayer::StoppedState) { + emit started(); + emit playingChanged(); + } else if (oldState == QMediaPlayer::PausedState) { + m_paused = false; + + emit resumed(); + emit pausedChanged(); + } + + if (state == m_state && state == QMediaPlayer::PausedState) { + bool wasPaused = m_paused; + + m_paused = true; + + emit paused(); + + if (!wasPaused) + emit pausedChanged(); + } + + if (m_state == QMediaPlayer::PlayingState + || m_status == QMediaPlayer::BufferingMedia + || m_status == QMediaPlayer::StalledMedia) { + m_animation->start(); + } else { + m_animation->stop(); + } + } +} + +void QDeclarativeMediaBase::_q_mediaStatusChanged(QMediaPlayer::MediaStatus status) +{ + if (status != m_status) { + m_status = status; + + switch (status) { + case QMediaPlayer::LoadedMedia: + emit loaded(); + break; + case QMediaPlayer::BufferingMedia: + emit buffering(); + break; + case QMediaPlayer::BufferedMedia: + emit buffered(); + break; + case QMediaPlayer::StalledMedia: + emit stalled(); + break; + case QMediaPlayer::EndOfMedia: + emit endOfMedia(); + break; + default: + break; + } + + emit statusChanged(); + + if (m_state == QMediaPlayer::PlayingState + || m_status == QMediaPlayer::BufferingMedia + || m_status == QMediaPlayer::StalledMedia) { + m_animation->start(); + } else { + m_animation->stop(); + } + } +} + +void QDeclarativeMediaBase::_q_metaDataChanged() +{ + m_metaObject->metaDataChanged(); +} + +QDeclarativeMediaBase::QDeclarativeMediaBase() + : m_mediaService(0) + , m_playerControl(0) + , m_mediaObject(0) + , m_mediaProvider(0) + , m_metaDataControl(0) + , m_metaObject(0) + , m_animation(0) + , m_state(QMediaPlayer::StoppedState) + , m_status(QMediaPlayer::NoMedia) + , m_error(QMediaPlayer::NoError) + , m_paused(false) +{ +} + +QDeclarativeMediaBase::~QDeclarativeMediaBase() +{ +} + +void QDeclarativeMediaBase::shutdown() +{ + delete m_metaObject; + delete m_mediaObject; + + if (m_mediaProvider) + m_mediaProvider->releaseService(m_mediaService); + + delete m_animation; + +} + +void QDeclarativeMediaBase::setObject(QObject *object) +{ + if ((m_mediaProvider = QMediaServiceProvider::defaultServiceProvider())) { + if ((m_mediaService = m_mediaProvider->requestService(Q_MEDIASERVICE_MEDIAPLAYER))) { + m_playerControl = qobject_cast<QMediaPlayerControl *>( + m_mediaService->control(QMediaPlayerControl_iid)); + m_metaDataControl = qobject_cast<QMetaDataControl *>( + m_mediaService->control(QMetaDataControl_iid)); + m_mediaObject = new QDeclarativeMediaBaseObject(m_mediaService); + } + } + + if (m_playerControl) { + QObject::connect(m_playerControl, SIGNAL(stateChanged(QMediaPlayer::State)), + object, SLOT(_q_stateChanged(QMediaPlayer::State))); + QObject::connect(m_playerControl, SIGNAL(mediaStatusChanged(QMediaPlayer::MediaStatus)), + object, SLOT(_q_mediaStatusChanged(QMediaPlayer::MediaStatus))); + QObject::connect(m_playerControl, SIGNAL(mediaChanged(QMediaContent)), + object, SIGNAL(sourceChanged())); + QObject::connect(m_playerControl, SIGNAL(durationChanged(qint64)), + object, SIGNAL(durationChanged())); + QObject::connect(m_playerControl, SIGNAL(positionChanged(qint64)), + object, SIGNAL(positionChanged())); + QObject::connect(m_playerControl, SIGNAL(volumeChanged(int)), + object, SIGNAL(volumeChanged())); + QObject::connect(m_playerControl, SIGNAL(mutedChanged(bool)), + object, SIGNAL(mutedChanged())); + QObject::connect(m_playerControl, SIGNAL(bufferStatusChanged(int)), + object, SIGNAL(bufferProgressChanged())); + QObject::connect(m_playerControl, SIGNAL(seekableChanged(bool)), + object, SIGNAL(seekableChanged())); + QObject::connect(m_playerControl, SIGNAL(playbackRateChanged(qreal)), + object, SIGNAL(playbackRateChanged())); + QObject::connect(m_playerControl, SIGNAL(error(int,QString)), + object, SLOT(_q_error(int,QString))); + + m_animation = new QDeclarativeMediaBaseAnimation(this); + } else { + m_error = QMediaPlayer::ServiceMissingError; + + m_playerControl = new QDeclarativeMediaBasePlayerControl(object); + } + + if (m_metaDataControl) { + m_metaObject = new QMetaDataControlMetaObject(m_metaDataControl, object); + + QObject::connect(m_metaDataControl, SIGNAL(metaDataChanged()), + object, SLOT(_q_metaDataChanged())); + } +} + +QUrl QDeclarativeMediaBase::source() const +{ + return m_playerControl->media().canonicalUrl(); +} + +void QDeclarativeMediaBase::setSource(const QUrl &url) +{ + if (m_error != QMediaPlayer::ServiceMissingError && m_error != QMediaPlayer::NoError) { + m_error = QMediaPlayer::NoError; + m_errorString = QString(); + + emit errorChanged(); + } + + m_playerControl->setMedia(QMediaContent(url), 0); +} + +bool QDeclarativeMediaBase::isPlaying() const +{ + return m_state != QMediaPlayer::StoppedState; +} + +void QDeclarativeMediaBase::setPlaying(bool playing) +{ + if (playing && m_state == QMediaPlayer::StoppedState) { + if (m_paused) + m_playerControl->pause(); + else + m_playerControl->play(); + } else if (!playing) { + m_playerControl->stop(); + } +} + +bool QDeclarativeMediaBase::isPaused() const +{ + return m_paused; +} + +void QDeclarativeMediaBase::setPaused(bool paused) +{ + if (m_paused != paused) { + if (paused && m_state == QMediaPlayer::PlayingState) { + m_playerControl->pause(); + } else if (!paused && m_state == QMediaPlayer::PausedState) { + m_playerControl->play(); + } else { + m_paused = paused; + + emit pausedChanged(); + } + } +} + +int QDeclarativeMediaBase::duration() const +{ + return m_playerControl->duration(); +} + +int QDeclarativeMediaBase::position() const +{ + return m_playerControl->position(); + +} + +void QDeclarativeMediaBase::setPosition(int position) +{ + m_playerControl->setPosition(position); +} + +qreal QDeclarativeMediaBase::volume() const +{ + return qreal(m_playerControl->volume()) / 100; +} + +void QDeclarativeMediaBase::setVolume(qreal volume) +{ + m_playerControl->setVolume(qRound(volume * 100)); +} + +bool QDeclarativeMediaBase::isMuted() const +{ + return m_playerControl->isMuted(); +} + +void QDeclarativeMediaBase::setMuted(bool muted) +{ + m_playerControl->setMuted(muted); +} + +qreal QDeclarativeMediaBase::bufferProgress() const +{ + return qreal(m_playerControl->bufferStatus()) / 100; +} + +bool QDeclarativeMediaBase::isSeekable() const +{ + return m_playerControl->isSeekable(); +} + +qreal QDeclarativeMediaBase::playbackRate() const +{ + return m_playerControl->playbackRate(); +} + +void QDeclarativeMediaBase::setPlaybackRate(qreal rate) +{ + m_playerControl->setPlaybackRate(rate); +} + +QString QDeclarativeMediaBase::errorString() const +{ + return m_errorString; +} + +QT_END_NAMESPACE + |