Add Windows Media Foundation backend for QMediaPlayer
Task-number:QTMOBILITY-1606 Reviewed-by: Michael Goddard (cherry picked from commit bdf3a9b39661cfb836245139d02e95e854646a7e) (cherry picked from commit 8d2370953eb32bf44a037244e0d9f9b484875f7a) Change-Id: I07790b8c540a04e4e19a3d018a4884a773e980bf Reviewed-on: http://codereview.qt.nokia.com/2086 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Ling Hu <ling.hu@nokia.com>
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Michael Goddard
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Qt by Nokia
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1e4dda9710
311
src/plugins/wmf/player/mfplayercontrol.cpp
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311
src/plugins/wmf/player/mfplayercontrol.cpp
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/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Mobility Components.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "mfplayercontrol.h"
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#include <qtcore/qdebug.h>
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//#define DEBUG_MEDIAFOUNDATION
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MFPlayerControl::MFPlayerControl(MFPlayerSession *session)
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: QMediaPlayerControl(session)
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, m_state(QMediaPlayer::StoppedState)
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, m_videoAvailable(false)
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, m_audioAvailable(false)
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, m_duration(-1)
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, m_seekable(false)
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, m_session(session)
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{
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QObject::connect(m_session, SIGNAL(statusChanged()), this, SLOT(handleStatusChanged()));
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QObject::connect(m_session, SIGNAL(videoAvailable()), this, SLOT(handleVideoAvailable()));
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QObject::connect(m_session, SIGNAL(audioAvailable()), this, SLOT(handleAudioAvailable()));
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QObject::connect(m_session, SIGNAL(durationUpdate(qint64)), this, SLOT(handleDurationUpdate(qint64)));
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QObject::connect(m_session, SIGNAL(seekableUpdate(bool)), this, SLOT(handleSeekableUpdate(bool)));
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QObject::connect(m_session, SIGNAL(error(QMediaPlayer::Error, QString, bool)), this, SLOT(handleError(QMediaPlayer::Error, QString, bool)));
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QObject::connect(m_session, SIGNAL(positionChanged(qint64)), this, SIGNAL(positionChanged(qint64)));
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QObject::connect(m_session, SIGNAL(volumeChanged(int)), this, SIGNAL(volumeChanged(int)));
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QObject::connect(m_session, SIGNAL(mutedChanged(bool)), this, SIGNAL(mutedChanged(bool)));
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QObject::connect(m_session, SIGNAL(playbackRateChanged(qreal)), this, SIGNAL(playbackRateChanged(qreal)));
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QObject::connect(m_session, SIGNAL(bufferStatusChanged(int)), this, SIGNAL(bufferStatusChanged(int)));
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}
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MFPlayerControl::~MFPlayerControl()
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{
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}
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void MFPlayerControl::setMedia(const QMediaContent &media, QIODevice *stream)
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{
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stop();
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m_media = media;
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m_stream = stream;
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resetAudioVideoAvailable();
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handleDurationUpdate(-1);
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handleSeekableUpdate(false);
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m_session->load(media, stream);
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emit mediaChanged(m_media);
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}
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void MFPlayerControl::play()
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{
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if (m_state == QMediaPlayer::PlayingState)
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return;
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if (QMediaPlayer::InvalidMedia == m_session->status())
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m_session->load(m_media, m_stream);
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switch (m_session->status()) {
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case QMediaPlayer::UnknownMediaStatus:
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case QMediaPlayer::NoMedia:
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case QMediaPlayer::InvalidMedia:
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return;
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case QMediaPlayer::LoadedMedia:
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case QMediaPlayer::BufferingMedia:
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case QMediaPlayer::BufferedMedia:
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case QMediaPlayer::EndOfMedia:
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changeState(QMediaPlayer::PlayingState);
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m_session->start();
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break;
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default: //Loading/Stalled
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changeState(QMediaPlayer::PlayingState);
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break;
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}
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refreshState();
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}
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void MFPlayerControl::pause()
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{
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if (m_state != QMediaPlayer::PlayingState)
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return;
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changeState(QMediaPlayer::PausedState);
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m_session->pause();
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refreshState();
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}
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void MFPlayerControl::stop()
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{
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if (m_state == QMediaPlayer::StoppedState)
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return;
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changeState(QMediaPlayer::StoppedState);
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m_session->stop();
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refreshState();
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}
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void MFPlayerControl::changeState(QMediaPlayer::State state)
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{
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if (m_state == state)
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return;
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m_state = state;
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m_stateDirty = true;
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}
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void MFPlayerControl::refreshState()
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{
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if (!m_stateDirty)
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return;
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m_stateDirty = false;
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#ifdef DEBUG_MEDIAFOUNDATION
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qDebug() << "MFPlayerControl::emit stateChanged" << m_state;
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#endif
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emit stateChanged(m_state);
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}
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void MFPlayerControl::handleStatusChanged()
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{
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QMediaPlayer::MediaStatus status = m_session->status();
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switch (status) {
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case QMediaPlayer::EndOfMedia:
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changeState(QMediaPlayer::StoppedState);
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break;
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case QMediaPlayer::InvalidMedia:
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break;
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case QMediaPlayer::LoadedMedia:
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case QMediaPlayer::BufferingMedia:
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case QMediaPlayer::BufferedMedia:
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if (m_state == QMediaPlayer::PlayingState)
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m_session->start();
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break;
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}
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emit mediaStatusChanged(m_session->status());
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refreshState();
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}
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void MFPlayerControl::handleVideoAvailable()
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{
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if (m_videoAvailable)
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return;
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m_videoAvailable = true;
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emit videoAvailableChanged(m_videoAvailable);
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}
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void MFPlayerControl::handleAudioAvailable()
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{
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if (m_audioAvailable)
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return;
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m_audioAvailable = true;
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emit audioAvailableChanged(m_audioAvailable);
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}
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void MFPlayerControl::resetAudioVideoAvailable()
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{
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bool videoDirty = false;
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if (m_videoAvailable) {
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m_videoAvailable = false;
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videoDirty = true;
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}
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if (m_audioAvailable) {
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m_audioAvailable = false;
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emit audioAvailableChanged(m_audioAvailable);
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}
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if (videoDirty)
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emit videoAvailableChanged(m_videoAvailable);
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}
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void MFPlayerControl::handleDurationUpdate(qint64 duration)
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{
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if (m_duration == duration)
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return;
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m_duration = duration;
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emit durationChanged(m_duration);
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}
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void MFPlayerControl::handleSeekableUpdate(bool seekable)
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{
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if (m_seekable == seekable)
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return;
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m_seekable = seekable;
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emit seekableChanged(m_seekable);
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}
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QMediaPlayer::State MFPlayerControl::state() const
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{
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return m_state;
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}
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QMediaPlayer::MediaStatus MFPlayerControl::mediaStatus() const
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{
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return m_session->status();
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}
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qint64 MFPlayerControl::duration() const
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{
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return m_duration;
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}
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qint64 MFPlayerControl::position() const
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{
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return m_session->position();
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}
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void MFPlayerControl::setPosition(qint64 position)
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{
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if (!m_seekable || position == m_session->position())
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return;
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m_session->setPosition(position);
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}
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int MFPlayerControl::volume() const
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{
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return m_session->volume();
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}
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void MFPlayerControl::setVolume(int volume)
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{
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m_session->setVolume(volume);
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}
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bool MFPlayerControl::isMuted() const
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{
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return m_session->isMuted();
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}
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void MFPlayerControl::setMuted(bool muted)
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{
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m_session->setMuted(muted);
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}
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int MFPlayerControl::bufferStatus() const
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{
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return m_session->bufferStatus();
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}
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bool MFPlayerControl::isAudioAvailable() const
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{
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return m_audioAvailable;
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}
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bool MFPlayerControl::isVideoAvailable() const
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{
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return m_videoAvailable;
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}
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bool MFPlayerControl::isSeekable() const
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{
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return m_seekable;
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}
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QMediaTimeRange MFPlayerControl::availablePlaybackRanges() const
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{
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return m_session->availablePlaybackRanges();
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}
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qreal MFPlayerControl::playbackRate() const
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{
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return m_session->playbackRate();
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}
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void MFPlayerControl::setPlaybackRate(qreal rate)
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{
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m_session->setPlaybackRate(rate);
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}
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QMediaContent MFPlayerControl::media() const
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{
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return m_media;
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}
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const QIODevice* MFPlayerControl::mediaStream() const
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{
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return m_stream;
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}
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void MFPlayerControl::handleError(QMediaPlayer::Error errorCode, const QString& errorString, bool isFatal)
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{
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if (isFatal)
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stop();
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emit error(int(errorCode), errorString);
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}
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