Initial copy of QtMultimediaKit.
Comes from original repo, with SHA1: 2c82d5611655e5967f5c5095af50c0991c4378b2
This commit is contained in:
Michael Goddard
748
src/plugins/gstreamer/mediaplayer/qgstreamerplayercontrol.cpp
Normal file
748
src/plugins/gstreamer/mediaplayer/qgstreamerplayercontrol.cpp
Normal file
@@ -0,0 +1,748 @@
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/****************************************************************************
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**
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** Copyright (C) 2010 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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||||
** $QT_BEGIN_LICENSE:LGPL$
|
||||
** 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.
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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 "qgstreamerplayercontrol.h"
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#include "qgstreamerplayersession.h"
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#include "playerresourcepolicy.h"
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#include <qmediaplaylistnavigator.h>
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#include <QtCore/qdir.h>
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#include <QtCore/qsocketnotifier.h>
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#include <QtCore/qurl.h>
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#include <QtCore/qdebug.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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//#define DEBUG_PLAYBIN
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QGstreamerPlayerControl::QGstreamerPlayerControl(QGstreamerPlayerSession *session, QObject *parent)
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: QMediaPlayerControl(parent)
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, m_ownStream(false)
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, m_session(session)
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, m_state(QMediaPlayer::StoppedState)
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, m_mediaStatus(QMediaPlayer::NoMedia)
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, m_bufferProgress(-1)
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, m_seekToStartPending(false)
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, m_pendingSeekPosition(-1)
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, m_stream(0)
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, m_fifoNotifier(0)
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, m_fifoCanWrite(false)
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, m_bufferSize(0)
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, m_bufferOffset(0)
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{
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m_fifoFd[0] = -1;
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m_fifoFd[1] = -1;
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m_resources = new PlayerResourcePolicy(this);
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connect(m_session, SIGNAL(positionChanged(qint64)),
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this, SIGNAL(positionChanged(qint64)));
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connect(m_session, SIGNAL(durationChanged(qint64)),
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this, SIGNAL(durationChanged(qint64)));
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connect(m_session, SIGNAL(mutedStateChanged(bool)),
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this, SIGNAL(mutedChanged(bool)));
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connect(m_session, SIGNAL(volumeChanged(int)),
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this, SIGNAL(volumeChanged(int)));
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connect(m_session, SIGNAL(stateChanged(QMediaPlayer::State)),
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this, SLOT(updateSessionState(QMediaPlayer::State)));
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connect(m_session,SIGNAL(bufferingProgressChanged(int)),
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this, SLOT(setBufferProgress(int)));
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connect(m_session, SIGNAL(playbackFinished()),
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this, SLOT(processEOS()));
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connect(m_session, SIGNAL(audioAvailableChanged(bool)),
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this, SIGNAL(audioAvailableChanged(bool)));
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connect(m_session, SIGNAL(videoAvailableChanged(bool)),
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this, SIGNAL(videoAvailableChanged(bool)));
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connect(m_session, SIGNAL(seekableChanged(bool)),
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this, SIGNAL(seekableChanged(bool)));
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connect(m_session, SIGNAL(error(int,QString)),
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this, SIGNAL(error(int,QString)));
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connect(m_session, SIGNAL(invalidMedia()),
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this, SLOT(handleInvalidMedia()));
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connect(m_session, SIGNAL(playbackRateChanged(qreal)),
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this, SIGNAL(playbackRateChanged(qreal)));
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connect(m_session, SIGNAL(seekableChanged(bool)),
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this, SLOT(applyPendingSeek(bool)));
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connect(m_resources, SIGNAL(resourcesGranted()), SLOT(handleResourcesGranted()));
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connect(m_resources, SIGNAL(resourcesDenied()), SLOT(handleResourcesLost()));
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connect(m_resources, SIGNAL(resourcesLost()), SLOT(handleResourcesLost()));
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}
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QGstreamerPlayerControl::~QGstreamerPlayerControl()
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{
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if (m_fifoFd[0] >= 0) {
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::close(m_fifoFd[0]);
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::close(m_fifoFd[1]);
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m_fifoFd[0] = -1;
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m_fifoFd[1] = -1;
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}
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}
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qint64 QGstreamerPlayerControl::position() const
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{
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return m_seekToStartPending ? 0 : m_session->position();
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}
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qint64 QGstreamerPlayerControl::duration() const
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{
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return m_session->duration();
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}
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QMediaPlayer::State QGstreamerPlayerControl::state() const
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{
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return m_state;
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}
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QMediaPlayer::MediaStatus QGstreamerPlayerControl::mediaStatus() const
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{
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return m_mediaStatus;
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}
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int QGstreamerPlayerControl::bufferStatus() const
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{
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if (m_bufferProgress == -1) {
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return m_session->state() == QMediaPlayer::StoppedState ? 0 : 100;
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} else
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return m_bufferProgress;
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}
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int QGstreamerPlayerControl::volume() const
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{
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return m_session->volume();
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}
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bool QGstreamerPlayerControl::isMuted() const
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{
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return m_session->isMuted();
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}
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bool QGstreamerPlayerControl::isSeekable() const
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{
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return m_session->isSeekable();
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}
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QMediaTimeRange QGstreamerPlayerControl::availablePlaybackRanges() const
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{
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return m_session->availablePlaybackRanges();
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}
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qreal QGstreamerPlayerControl::playbackRate() const
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{
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return m_session->playbackRate();
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}
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void QGstreamerPlayerControl::setPlaybackRate(qreal rate)
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{
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m_session->setPlaybackRate(rate);
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}
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void QGstreamerPlayerControl::setPosition(qint64 pos)
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{
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#ifdef DEBUG_PLAYBIN
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qDebug() << Q_FUNC_INFO << pos/1000.0;
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#endif
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pushState();
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if (m_mediaStatus == QMediaPlayer::EndOfMedia) {
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m_mediaStatus = QMediaPlayer::LoadedMedia;
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m_seekToStartPending = true;
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}
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|
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if (m_session->isSeekable() && m_session->seek(pos)) {
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m_seekToStartPending = false;
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m_pendingSeekPosition = -1;
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||||
} else {
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||||
m_pendingSeekPosition = pos;
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}
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popAndNotifyState();
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}
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void QGstreamerPlayerControl::play()
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{
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#ifdef DEBUG_PLAYBIN
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qDebug() << Q_FUNC_INFO;
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#endif
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playOrPause(QMediaPlayer::PlayingState);
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}
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void QGstreamerPlayerControl::pause()
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{
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#ifdef DEBUG_PLAYBIN
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qDebug() << Q_FUNC_INFO;
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#endif
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||||
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playOrPause(QMediaPlayer::PausedState);
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||||
}
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void QGstreamerPlayerControl::playOrPause(QMediaPlayer::State newState)
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{
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if (m_mediaStatus == QMediaPlayer::NoMedia)
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return;
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pushState();
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#ifdef Q_WS_MAEMO_6
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//this is a work around for the gstreamer bug,
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//should be remove once it get fixed
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if (newState == QMediaPlayer::PlayingState && m_mediaStatus == QMediaPlayer::InvalidMedia) {
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setMedia(m_currentResource, m_stream);
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}
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#endif
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||||
|
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if (m_mediaStatus == QMediaPlayer::EndOfMedia) {
|
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m_mediaStatus = QMediaPlayer::BufferedMedia;
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m_seekToStartPending = true;
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}
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||||
|
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if (!m_resources->isGranted() && !m_resources->isRequested())
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m_resources->acquire();
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|
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if (m_resources->isGranted()) {
|
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if (m_seekToStartPending) {
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m_session->pause();
|
||||
if (!m_session->seek(0)) {
|
||||
m_bufferProgress = -1;
|
||||
m_session->stop();
|
||||
m_mediaStatus = QMediaPlayer::LoadingMedia;
|
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}
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m_seekToStartPending = false;
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}
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bool ok = false;
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if (newState == QMediaPlayer::PlayingState)
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ok = m_session->play();
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else
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ok = m_session->pause();
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|
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if (!ok)
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newState = QMediaPlayer::StoppedState;
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}
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||||
|
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if (m_mediaStatus == QMediaPlayer::InvalidMedia)
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m_mediaStatus = QMediaPlayer::LoadingMedia;
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m_state = newState;
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|
||||
if (m_mediaStatus == QMediaPlayer::EndOfMedia || m_mediaStatus == QMediaPlayer::LoadedMedia) {
|
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if (m_bufferProgress == -1 || m_bufferProgress == 100)
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m_mediaStatus = QMediaPlayer::BufferedMedia;
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else
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m_mediaStatus = QMediaPlayer::BufferingMedia;
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}
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popAndNotifyState();
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emit positionChanged(position());
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}
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void QGstreamerPlayerControl::stop()
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{
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#ifdef DEBUG_PLAYBIN
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qDebug() << Q_FUNC_INFO;
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#endif
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pushState();
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||||
|
||||
if (m_state != QMediaPlayer::StoppedState) {
|
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m_state = QMediaPlayer::StoppedState;
|
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if (m_resources->isGranted())
|
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m_session->pause();
|
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|
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if (m_mediaStatus != QMediaPlayer::EndOfMedia) {
|
||||
m_seekToStartPending = true;
|
||||
emit positionChanged(position());
|
||||
}
|
||||
}
|
||||
|
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popAndNotifyState();
|
||||
}
|
||||
|
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void QGstreamerPlayerControl::setVolume(int volume)
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{
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m_session->setVolume(volume);
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}
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void QGstreamerPlayerControl::setMuted(bool muted)
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{
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m_session->setMuted(muted);
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}
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QMediaContent QGstreamerPlayerControl::media() const
|
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{
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return m_currentResource;
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}
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const QIODevice *QGstreamerPlayerControl::mediaStream() const
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{
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return m_stream;
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}
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|
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void QGstreamerPlayerControl::setMedia(const QMediaContent &content, QIODevice *stream)
|
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{
|
||||
#ifdef DEBUG_PLAYBIN
|
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qDebug() << Q_FUNC_INFO;
|
||||
#endif
|
||||
|
||||
pushState();
|
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|
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m_state = QMediaPlayer::StoppedState;
|
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QMediaContent oldMedia = m_currentResource;
|
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m_pendingSeekPosition = -1;
|
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|
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if (!content.isNull() || stream) {
|
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if (!m_resources->isRequested() && !m_resources->isGranted())
|
||||
m_resources->acquire();
|
||||
|
||||
if (!m_resources->isGranted()) {
|
||||
m_currentResource = content;
|
||||
m_stream = stream;
|
||||
|
||||
m_state = QMediaPlayer::StoppedState;
|
||||
m_mediaStatus = QMediaPlayer::LoadingMedia;
|
||||
if (m_currentResource != oldMedia)
|
||||
emit mediaChanged(m_currentResource);
|
||||
popAndNotifyState();
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
m_resources->release();
|
||||
}
|
||||
|
||||
m_session->stop();
|
||||
|
||||
bool userStreamValid = false;
|
||||
|
||||
if (m_bufferProgress != -1) {
|
||||
m_bufferProgress = -1;
|
||||
emit bufferStatusChanged(0);
|
||||
}
|
||||
|
||||
if (m_stream) {
|
||||
#if !defined(HAVE_GST_APPSRC)
|
||||
closeFifo();
|
||||
|
||||
disconnect(m_stream, SIGNAL(readyRead()), this, SLOT(writeFifo()));
|
||||
#endif
|
||||
|
||||
if (m_ownStream)
|
||||
delete m_stream;
|
||||
m_stream = 0;
|
||||
m_ownStream = false;
|
||||
}
|
||||
|
||||
// If the canonical URL refers to a Qt resource, open with QFile and use
|
||||
// the stream playback capability to play.
|
||||
if (stream == 0 && content.canonicalUrl().scheme() == QLatin1String("qrc")) {
|
||||
stream = new QFile(QLatin1Char(':') + content.canonicalUrl().path(), this);
|
||||
if (!stream->open(QIODevice::ReadOnly)) {
|
||||
delete stream;
|
||||
m_mediaStatus = QMediaPlayer::InvalidMedia;
|
||||
m_currentResource = content;
|
||||
emit mediaChanged(m_currentResource);
|
||||
emit error(QMediaPlayer::FormatError, tr("Attempting to play invalid Qt resource"));
|
||||
if (m_state != QMediaPlayer::PlayingState)
|
||||
m_resources->release();
|
||||
popAndNotifyState();
|
||||
return;
|
||||
}
|
||||
m_ownStream = true;
|
||||
}
|
||||
|
||||
m_currentResource = content;
|
||||
m_stream = stream;
|
||||
m_seekToStartPending = false;
|
||||
|
||||
QNetworkRequest request;
|
||||
|
||||
if (m_stream) {
|
||||
#if !defined(HAVE_GST_APPSRC)
|
||||
if (m_stream->isReadable() && openFifo()) {
|
||||
request = QNetworkRequest(QUrl(QString(QLatin1String("fd://%1")).arg(m_fifoFd[0])));
|
||||
}
|
||||
#else
|
||||
userStreamValid = stream->isOpen() && m_stream->isReadable();
|
||||
request = content.canonicalRequest();
|
||||
#endif
|
||||
} else if (!content.isNull()) {
|
||||
request = content.canonicalRequest();
|
||||
}
|
||||
|
||||
#if !defined(HAVE_GST_APPSRC)
|
||||
m_session->loadFromUri(request);
|
||||
#else
|
||||
if (m_stream) {
|
||||
if (userStreamValid){
|
||||
m_session->loadFromStream(request, m_stream);
|
||||
} else {
|
||||
m_mediaStatus = QMediaPlayer::InvalidMedia;
|
||||
emit error(QMediaPlayer::FormatError, tr("Attempting to play invalid user stream"));
|
||||
if (m_state != QMediaPlayer::PlayingState)
|
||||
m_resources->release();
|
||||
popAndNotifyState();
|
||||
return;
|
||||
}
|
||||
} else
|
||||
m_session->loadFromUri(request);
|
||||
#endif
|
||||
|
||||
#if !defined(HAVE_GST_APPSRC)
|
||||
if (m_fifoFd[1] >= 0) {
|
||||
m_fifoCanWrite = true;
|
||||
|
||||
writeFifo();
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(HAVE_GST_APPSRC)
|
||||
if (!request.url().isEmpty() || userStreamValid) {
|
||||
#else
|
||||
if (!request.url().isEmpty()) {
|
||||
#endif
|
||||
m_mediaStatus = QMediaPlayer::LoadingMedia;
|
||||
m_session->pause();
|
||||
} else {
|
||||
m_mediaStatus = QMediaPlayer::NoMedia;
|
||||
setBufferProgress(0);
|
||||
}
|
||||
|
||||
if (m_currentResource != oldMedia)
|
||||
emit mediaChanged(m_currentResource);
|
||||
|
||||
emit positionChanged(position());
|
||||
|
||||
if (content.isNull() && !stream)
|
||||
m_resources->release();
|
||||
|
||||
popAndNotifyState();
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::setVideoOutput(QObject *output)
|
||||
{
|
||||
m_session->setVideoRenderer(output);
|
||||
}
|
||||
|
||||
bool QGstreamerPlayerControl::isAudioAvailable() const
|
||||
{
|
||||
return m_session->isAudioAvailable();
|
||||
}
|
||||
|
||||
bool QGstreamerPlayerControl::isVideoAvailable() const
|
||||
{
|
||||
return m_session->isVideoAvailable();
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::updateSessionState(QMediaPlayer::State state)
|
||||
{
|
||||
pushState();
|
||||
|
||||
if (state == QMediaPlayer::StoppedState)
|
||||
m_state = QMediaPlayer::StoppedState;
|
||||
|
||||
updateMediaStatus();
|
||||
|
||||
popAndNotifyState();
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::updateMediaStatus()
|
||||
{
|
||||
pushState();
|
||||
QMediaPlayer::MediaStatus oldStatus = m_mediaStatus;
|
||||
|
||||
switch (m_session->state()) {
|
||||
case QMediaPlayer::StoppedState:
|
||||
if (m_currentResource.isNull())
|
||||
m_mediaStatus = QMediaPlayer::NoMedia;
|
||||
else if (oldStatus != QMediaPlayer::InvalidMedia)
|
||||
m_mediaStatus = QMediaPlayer::LoadingMedia;
|
||||
break;
|
||||
|
||||
case QMediaPlayer::PlayingState:
|
||||
case QMediaPlayer::PausedState:
|
||||
if (m_state == QMediaPlayer::StoppedState) {
|
||||
m_mediaStatus = QMediaPlayer::LoadedMedia;
|
||||
} else {
|
||||
if (m_bufferProgress == -1 || m_bufferProgress == 100)
|
||||
m_mediaStatus = QMediaPlayer::BufferedMedia;
|
||||
else
|
||||
m_mediaStatus = QMediaPlayer::StalledMedia;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (m_state == QMediaPlayer::PlayingState && !m_resources->isGranted())
|
||||
m_mediaStatus = QMediaPlayer::StalledMedia;
|
||||
|
||||
//EndOfMedia status should be kept, until reset by pause, play or setMedia
|
||||
if (oldStatus == QMediaPlayer::EndOfMedia)
|
||||
m_mediaStatus = QMediaPlayer::EndOfMedia;
|
||||
|
||||
popAndNotifyState();
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::processEOS()
|
||||
{
|
||||
pushState();
|
||||
m_mediaStatus = QMediaPlayer::EndOfMedia;
|
||||
emit positionChanged(position());
|
||||
stop();
|
||||
popAndNotifyState();
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::setBufferProgress(int progress)
|
||||
{
|
||||
if (m_bufferProgress == progress || m_mediaStatus == QMediaPlayer::NoMedia)
|
||||
return;
|
||||
|
||||
#ifdef DEBUG_PLAYBIN
|
||||
qDebug() << Q_FUNC_INFO << progress;
|
||||
#endif
|
||||
m_bufferProgress = progress;
|
||||
|
||||
if (m_resources->isGranted()) {
|
||||
if (m_state == QMediaPlayer::PlayingState &&
|
||||
m_bufferProgress == 100 &&
|
||||
m_session->state() != QMediaPlayer::PlayingState)
|
||||
m_session->play();
|
||||
|
||||
if (m_bufferProgress < 100 &&
|
||||
(m_session->state() == QMediaPlayer::PlayingState ||
|
||||
m_session->pendingState() == QMediaPlayer::PlayingState))
|
||||
m_session->pause();
|
||||
}
|
||||
|
||||
updateMediaStatus();
|
||||
|
||||
emit bufferStatusChanged(m_bufferProgress);
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::writeFifo()
|
||||
{
|
||||
if (m_fifoCanWrite) {
|
||||
qint64 bytesToRead = qMin<qint64>(
|
||||
m_stream->bytesAvailable(), PIPE_BUF - m_bufferSize);
|
||||
|
||||
if (bytesToRead > 0) {
|
||||
int bytesRead = m_stream->read(&m_buffer[m_bufferOffset + m_bufferSize], bytesToRead);
|
||||
|
||||
if (bytesRead > 0)
|
||||
m_bufferSize += bytesRead;
|
||||
}
|
||||
|
||||
if (m_bufferSize > 0) {
|
||||
int bytesWritten = ::write(m_fifoFd[1], &m_buffer[m_bufferOffset], size_t(m_bufferSize));
|
||||
|
||||
if (bytesWritten > 0) {
|
||||
m_bufferOffset += bytesWritten;
|
||||
m_bufferSize -= bytesWritten;
|
||||
|
||||
if (m_bufferSize == 0)
|
||||
m_bufferOffset = 0;
|
||||
} else if (errno == EAGAIN) {
|
||||
m_fifoCanWrite = false;
|
||||
} else {
|
||||
closeFifo();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
m_fifoNotifier->setEnabled(m_stream->bytesAvailable() > 0);
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::fifoReadyWrite(int socket)
|
||||
{
|
||||
if (socket == m_fifoFd[1]) {
|
||||
m_fifoCanWrite = true;
|
||||
|
||||
writeFifo();
|
||||
}
|
||||
}
|
||||
|
||||
bool QGstreamerPlayerControl::openFifo()
|
||||
{
|
||||
Q_ASSERT(m_fifoFd[0] < 0);
|
||||
Q_ASSERT(m_fifoFd[1] < 0);
|
||||
|
||||
if (::pipe(m_fifoFd) == 0) {
|
||||
int flags = ::fcntl(m_fifoFd[1], F_GETFD);
|
||||
|
||||
if (::fcntl(m_fifoFd[1], F_SETFD, flags | O_NONBLOCK) >= 0) {
|
||||
m_fifoNotifier = new QSocketNotifier(m_fifoFd[1], QSocketNotifier::Write);
|
||||
|
||||
connect(m_fifoNotifier, SIGNAL(activated(int)), this, SLOT(fifoReadyWrite(int)));
|
||||
|
||||
return true;
|
||||
} else {
|
||||
qWarning("Failed to make pipe non blocking %d", errno);
|
||||
|
||||
::close(m_fifoFd[0]);
|
||||
::close(m_fifoFd[1]);
|
||||
|
||||
m_fifoFd[0] = -1;
|
||||
m_fifoFd[1] = -1;
|
||||
|
||||
return false;
|
||||
}
|
||||
} else {
|
||||
qWarning("Failed to create pipe %d", errno);
|
||||
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::closeFifo()
|
||||
{
|
||||
if (m_fifoFd[0] >= 0) {
|
||||
delete m_fifoNotifier;
|
||||
m_fifoNotifier = 0;
|
||||
|
||||
::close(m_fifoFd[0]);
|
||||
::close(m_fifoFd[1]);
|
||||
m_fifoFd[0] = -1;
|
||||
m_fifoFd[1] = -1;
|
||||
|
||||
m_fifoCanWrite = false;
|
||||
|
||||
m_bufferSize = 0;
|
||||
m_bufferOffset = 0;
|
||||
}
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::applyPendingSeek(bool isSeekable)
|
||||
{
|
||||
if (isSeekable && m_pendingSeekPosition != -1)
|
||||
setPosition(m_pendingSeekPosition);
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::handleInvalidMedia()
|
||||
{
|
||||
pushState();
|
||||
m_mediaStatus = QMediaPlayer::InvalidMedia;
|
||||
m_state = QMediaPlayer::StoppedState;
|
||||
popAndNotifyState();
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::handleResourcesGranted()
|
||||
{
|
||||
pushState();
|
||||
|
||||
QMediaPlayer::State state = m_state;
|
||||
|
||||
//preserve m_pendingSeekPosition, it's reset on setMedia
|
||||
qint64 pos = m_pendingSeekPosition;
|
||||
setMedia(m_currentResource, m_stream);
|
||||
|
||||
if (pos != -1)
|
||||
setPosition(pos);
|
||||
|
||||
if (state != QMediaPlayer::StoppedState)
|
||||
playOrPause(state);
|
||||
else
|
||||
updateMediaStatus();
|
||||
|
||||
popAndNotifyState();
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::handleResourcesLost()
|
||||
{
|
||||
//on resource lost the pipeline should be stopped
|
||||
//player status is changed to paused
|
||||
|
||||
pushState();
|
||||
QMediaPlayer::State oldState = m_state;
|
||||
|
||||
qint64 pos = m_session->position();
|
||||
m_session->stop();
|
||||
m_pendingSeekPosition = pos;
|
||||
|
||||
if (oldState != QMediaPlayer::StoppedState )
|
||||
m_state = QMediaPlayer::PausedState;
|
||||
|
||||
popAndNotifyState();
|
||||
}
|
||||
|
||||
bool QGstreamerPlayerControl::isMediaDownloadEnabled() const
|
||||
{
|
||||
return m_session->property("mediaDownloadEnabled").toBool();
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::setMediaDownloadEnabled(bool enabled)
|
||||
{
|
||||
m_session->setProperty("mediaDownloadEnabled", enabled);
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::pushState()
|
||||
{
|
||||
m_stateStack.push(m_state);
|
||||
m_mediaStatusStack.push(m_mediaStatus);
|
||||
}
|
||||
|
||||
void QGstreamerPlayerControl::popAndNotifyState()
|
||||
{
|
||||
Q_ASSERT(!m_stateStack.isEmpty());
|
||||
|
||||
QMediaPlayer::State oldState = m_stateStack.pop();
|
||||
QMediaPlayer::MediaStatus oldMediaStatus = m_mediaStatusStack.pop();
|
||||
|
||||
if (m_stateStack.isEmpty()) {
|
||||
if (m_state != oldState) {
|
||||
#ifdef DEBUG_PLAYBIN
|
||||
qDebug() << "State changed:" << m_state;
|
||||
#endif
|
||||
emit stateChanged(m_state);
|
||||
}
|
||||
|
||||
if (m_mediaStatus != oldMediaStatus) {
|
||||
#ifdef DEBUG_PLAYBIN
|
||||
qDebug() << "Media status changed:" << m_mediaStatus;
|
||||
#endif
|
||||
emit mediaStatusChanged(m_mediaStatus);
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user