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Diffstat (limited to 'src/imports/multimedia/qdeclarativemediabase.cpp')
| -rw-r--r-- | src/imports/multimedia/qdeclarativemediabase.cpp | 567 |
1 files changed, 567 insertions, 0 deletions
diff --git a/src/imports/multimedia/qdeclarativemediabase.cpp b/src/imports/multimedia/qdeclarativemediabase.cpp new file mode 100644 index 000000000..68552ed6a --- /dev/null +++ b/src/imports/multimedia/qdeclarativemediabase.cpp @@ -0,0 +1,567 @@ +/**************************************************************************** +** +** 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 Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 <QtDeclarative/qdeclarativeinfo.h> + +#include <qmediaplayercontrol.h> +#include <qmediaservice.h> +#include <qmediaserviceprovider.h> +#include <qmetadatareadercontrol.h> + +#include "qdeclarativemediametadata_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 QDeclarativeMediaBaseMetaDataControl : public QMetaDataReaderControl +{ +public: + QDeclarativeMediaBaseMetaDataControl(QObject *parent) + : QMetaDataReaderControl(parent) + { + } + + bool isMetaDataAvailable() const { return false; } + + QVariant metaData(QtMultimediaKit::MetaData) const { return QVariant(); } + QList<QtMultimediaKit::MetaData> availableMetaData() const { + return QList<QtMultimediaKit::MetaData>(); } + + QVariant extendedMetaData(const QString &) const { return QVariant(); } + QStringList availableExtendedMetaData() const { return QStringList(); } +}; + +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_playing && !m_media->m_paused) + 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_statusChanged() +{ + if (m_playerControl->mediaStatus() == QMediaPlayer::EndOfMedia && m_runningCount != 0) { + m_runningCount -= 1; + m_playerControl->play(); + } + + const QMediaPlayer::MediaStatus oldStatus = m_status; + const bool wasPlaying = m_playing; + const bool wasPaused = m_paused; + + const QMediaPlayer::State state = m_playerControl->state(); + + m_status = m_playerControl->mediaStatus(); + + if (m_complete) + m_playing = state != QMediaPlayer::StoppedState; + + if (state == QMediaPlayer::PausedState) + m_paused = true; + else if (state == QMediaPlayer::PlayingState) + m_paused = false; + + if (m_status != oldStatus) + emit statusChanged(); + + switch (state) { + case QMediaPlayer::StoppedState: + if (wasPlaying) { + emit stopped(); + + if (!m_playing) + emit playingChanged(); + } + break; + case QMediaPlayer::PausedState: + if (!wasPlaying) { + emit started(); + if (m_playing) + emit playingChanged(); + } + if ((!wasPaused || !wasPlaying) && m_paused) + emit paused(); + if (!wasPaused && m_paused) + emit pausedChanged(); + + break; + + case QMediaPlayer::PlayingState: + if (wasPaused && wasPlaying) + emit resumed(); + else + emit started(); + + if (wasPaused && !m_paused) + emit pausedChanged(); + if (!wasPlaying && m_playing) + emit playingChanged(); + break; + } + + // Check + if ((m_playing && !m_paused) + || m_status == QMediaPlayer::BufferingMedia + || m_status == QMediaPlayer::StalledMedia) { + m_animation->start(); + } + else { + m_animation->stop(); + } +} + +QDeclarativeMediaBase::QDeclarativeMediaBase() + : m_paused(false) + , m_playing(false) + , m_autoLoad(true) + , m_loaded(false) + , m_muted(false) + , m_complete(false) + , m_loopCount(1) + , m_runningCount(0) + , m_position(0) + , m_vol(1.0) + , m_playbackRate(1.0) + , m_mediaService(0) + , m_playerControl(0) + , m_qmlObject(0) + , m_mediaObject(0) + , m_mediaProvider(0) + , m_metaDataControl(0) + , m_animation(0) + , m_status(QMediaPlayer::NoMedia) + , m_error(QMediaPlayer::ServiceMissingError) +{ +} + +QDeclarativeMediaBase::~QDeclarativeMediaBase() +{ +} + +void QDeclarativeMediaBase::shutdown() +{ + delete m_mediaObject; + m_metaData.reset(); + + if (m_mediaProvider) + m_mediaProvider->releaseService(m_mediaService); + + delete m_animation; + +} + +void QDeclarativeMediaBase::setObject(QObject *object) +{ + m_qmlObject = object; + + if ((m_mediaProvider = QMediaServiceProvider::defaultServiceProvider()) != 0) { + if ((m_mediaService = m_mediaProvider->requestService(Q_MEDIASERVICE_MEDIAPLAYER)) != 0) { + m_playerControl = qobject_cast<QMediaPlayerControl *>( + m_mediaService->requestControl(QMediaPlayerControl_iid)); + m_metaDataControl = qobject_cast<QMetaDataReaderControl *>( + m_mediaService->requestControl(QMetaDataReaderControl_iid)); + m_mediaObject = new QDeclarativeMediaBaseObject(m_mediaService); + } + } + + if (m_playerControl) { + QObject::connect(m_playerControl, SIGNAL(stateChanged(QMediaPlayer::State)), + object, SLOT(_q_statusChanged())); + QObject::connect(m_playerControl, SIGNAL(mediaStatusChanged(QMediaPlayer::MediaStatus)), + object, SLOT(_q_statusChanged())); + 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); + m_error = QMediaPlayer::NoError; + } else { + m_playerControl = new QDeclarativeMediaBasePlayerControl(object); + } + + if (!m_metaDataControl) + m_metaDataControl = new QDeclarativeMediaBaseMetaDataControl(object); + + m_metaData.reset(new QDeclarativeMediaMetaData(m_metaDataControl)); + + QObject::connect(m_metaDataControl, SIGNAL(metaDataChanged()), + m_metaData.data(), SIGNAL(metaDataChanged())); +} + +void QDeclarativeMediaBase::componentComplete() +{ + m_playerControl->setVolume(m_vol * 100); + m_playerControl->setMuted(m_muted); + m_playerControl->setPlaybackRate(m_playbackRate); + + if (!m_source.isEmpty() && (m_autoLoad || m_playing)) // Override autoLoad if playing set + m_playerControl->setMedia(m_source, 0); + + m_complete = true; + + if (m_playing) { + if (m_position > 0) + m_playerControl->setPosition(m_position); + + if (m_source.isEmpty()) { + m_playing = false; + + emit playingChanged(); + } else if (m_paused) { + m_playerControl->pause(); + } else { + m_playerControl->play(); + } + } +} + +// Properties + +QUrl QDeclarativeMediaBase::source() const +{ + return m_source; +} + +void QDeclarativeMediaBase::setSource(const QUrl &url) +{ + if (url == m_source) + return; + + m_source = url; + m_loaded = false; + if (m_complete && (m_autoLoad || url.isEmpty())) { + if (m_error != QMediaPlayer::ServiceMissingError && m_error != QMediaPlayer::NoError) { + m_error = QMediaPlayer::NoError; + m_errorString = QString(); + + emit errorChanged(); + } + + m_playerControl->setMedia(m_source, 0); + m_loaded = true; + } + else + emit sourceChanged(); +} + +bool QDeclarativeMediaBase::isAutoLoad() const +{ + return m_autoLoad; +} + +void QDeclarativeMediaBase::setAutoLoad(bool autoLoad) +{ + if (m_autoLoad == autoLoad) + return; + + m_autoLoad = autoLoad; + emit autoLoadChanged(); +} + +int QDeclarativeMediaBase::loopCount() const +{ + return m_loopCount; +} + +void QDeclarativeMediaBase::setLoopCount(int loopCount) +{ + if (loopCount == 0) + loopCount = 1; + else if (loopCount < -1) + loopCount = -1; + + if (m_loopCount == loopCount) { + return; + } + m_loopCount = loopCount; + emit loopCountChanged(); +} + +bool QDeclarativeMediaBase::isPlaying() const +{ + return m_playing; +} + +void QDeclarativeMediaBase::setPlaying(bool playing) +{ + if (playing == m_playing) + return; + + if (m_complete) { + if (playing) { + if (!m_autoLoad && !m_loaded) { + m_playerControl->setMedia(m_source, 0); + m_playerControl->setPosition(m_position); + m_loaded = true; + } + + m_runningCount = m_loopCount - 1; + + if (!m_paused) + m_playerControl->play(); + else + m_playerControl->pause(); + } else { + m_playerControl->stop(); + } + } else { + m_playing = playing; + emit playingChanged(); + } +} + +bool QDeclarativeMediaBase::isPaused() const +{ + return m_paused; +} + +void QDeclarativeMediaBase::setPaused(bool paused) +{ + if (m_paused == paused) + return; + + if (m_complete && m_playing) { + if (!m_autoLoad && !m_loaded) { + m_playerControl->setMedia(m_source, 0); + m_playerControl->setPosition(m_position); + m_loaded = true; + } + + if (!paused) + m_playerControl->play(); + else + m_playerControl->pause(); + } else { + m_paused = paused; + emit pausedChanged(); + } +} + +int QDeclarativeMediaBase::duration() const +{ + return !m_complete ? 0 : m_playerControl->duration(); +} + +int QDeclarativeMediaBase::position() const +{ + return !m_complete ? m_position : m_playerControl->position(); +} + +void QDeclarativeMediaBase::setPosition(int position) +{ + if (this->position() == position) + return; + + m_position = position; + if (m_complete) + m_playerControl->setPosition(m_position); + else + emit positionChanged(); +} + +qreal QDeclarativeMediaBase::volume() const +{ + return !m_complete ? m_vol : qreal(m_playerControl->volume()) / 100; +} + +void QDeclarativeMediaBase::setVolume(qreal volume) +{ + if (volume < 0 || volume > 1) { + qmlInfo(m_qmlObject) << m_qmlObject->tr("volume should be between 0.0 and 1.0"); + return; + } + + if (m_vol == volume) + return; + + m_vol = volume; + + if (m_complete) + m_playerControl->setVolume(qRound(volume * 100)); + else + emit volumeChanged(); +} + +bool QDeclarativeMediaBase::isMuted() const +{ + return !m_complete ? m_muted : m_playerControl->isMuted(); +} + +void QDeclarativeMediaBase::setMuted(bool muted) +{ + if (m_muted == muted) + return; + + m_muted = muted; + + if (m_complete) + m_playerControl->setMuted(muted); + else + emit mutedChanged(); +} + +qreal QDeclarativeMediaBase::bufferProgress() const +{ + return !m_complete ? 0 : qreal(m_playerControl->bufferStatus()) / 100; +} + +bool QDeclarativeMediaBase::isSeekable() const +{ + return !m_complete ? false : m_playerControl->isSeekable(); +} + +qreal QDeclarativeMediaBase::playbackRate() const +{ + return m_playbackRate; +} + +void QDeclarativeMediaBase::setPlaybackRate(qreal rate) +{ + if (m_playbackRate == rate) + return; + + m_playbackRate = rate; + + if (m_complete) + m_playerControl->setPlaybackRate(m_playbackRate); + else + emit playbackRateChanged(); +} + +QString QDeclarativeMediaBase::errorString() const +{ + return m_errorString; +} + +QDeclarativeMediaMetaData *QDeclarativeMediaBase::metaData() const +{ + return m_metaData.data(); +} + +QT_END_NAMESPACE + |