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author | Qt Continuous Integration System <qt-info@nokia.com> | 2010-04-24 07:03:21 (GMT) |
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committer | Qt Continuous Integration System <qt-info@nokia.com> | 2010-04-24 07:03:21 (GMT) |
commit | e8e26d3f3f7eedf080892dc000ca11360e4cf1c6 (patch) | |
tree | ac88fa127afc4ba2916ec17273fc1b767d5e1d05 /src/multimedia/mediaservices/playback | |
parent | c5212670f20f07733f16f00a318e0945b2721d22 (diff) | |
parent | 8da6db0d98f3ade7440fa0434fc500517f21625c (diff) | |
download | Qt-e8e26d3f3f7eedf080892dc000ca11360e4cf1c6.zip Qt-e8e26d3f3f7eedf080892dc000ca11360e4cf1c6.tar.gz Qt-e8e26d3f3f7eedf080892dc000ca11360e4cf1c6.tar.bz2 |
Merge branch '4.7' of scm.dev.nokia.troll.no:qt/qt-multimedia-staging into 4.7-integration
* '4.7' of scm.dev.nokia.troll.no:qt/qt-multimedia-staging: (27 commits)
Remove trace code from directshowaudioendpointcontrol.h.
New configure.exe binary
Add support for MSBuild, which is the project format for MSVC 2010
Only add qvideowidget test once.
Multimedia causes build failure when Qt is configured with -embedded
Player demo: load not only local files but playlists and urls passed as
Gstreamer media backend: preserve playback rate after seeks and media
QT7 mediaservice; fix leaking strings.
Fixed Qt build with mediaservices disabled.
Multimedia tests; fix for missing dependency
Disabled QMediaPlayer states debug output.
Fixed typo in QMediaPlayer::play() error reporting
Fixed QVideoWidget test, waiting for video surface painted.
Tests; Fix media tests, make sure they are using mediaservies.
Fix warning about illegal empty declaration.
Three fixes from Shane after QtMultimedia was split into two dlls.
Fix compile errors in Direct Show media service.
Add EXPORT defines for QtMediaServices library.
Fixed configure check for gstreamer.
WebKit; build with change to mediaservices.
...
Diffstat (limited to 'src/multimedia/mediaservices/playback')
5 files changed, 1719 insertions, 0 deletions
diff --git a/src/multimedia/mediaservices/playback/playback.pri b/src/multimedia/mediaservices/playback/playback.pri new file mode 100644 index 0000000..09a81c9 --- /dev/null +++ b/src/multimedia/mediaservices/playback/playback.pri @@ -0,0 +1,11 @@ + +HEADERS += \ + $$PWD/qmediaplayer.h \ + $$PWD/qmediaplayercontrol.h + +SOURCES += \ + $$PWD/qmediaplayer.cpp \ + $$PWD/qmediaplayercontrol.cpp + + + diff --git a/src/multimedia/mediaservices/playback/qmediaplayer.cpp b/src/multimedia/mediaservices/playback/qmediaplayer.cpp new file mode 100644 index 0000000..ca1f250 --- /dev/null +++ b/src/multimedia/mediaservices/playback/qmediaplayer.cpp @@ -0,0 +1,996 @@ +/**************************************************************************** +** +** 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 QtMediaServices module 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 <QtCore/qcoreevent.h> +#include <QtCore/qmetaobject.h> +#include <QtCore/qtimer.h> +#include <QtCore/qpointer.h> +#include <QtCore/qdebug.h> + +#include <QtMediaServices/qmediaplayer.h> + +#include <QtMediaServices/private/qmediaobject_p.h> +#include <QtMediaServices/qmediaservice.h> +#include <QtMediaServices/qmediaplayercontrol.h> +#include <QtMediaServices/qmediaserviceprovider.h> +#include <QtMediaServices/qmediaplaylist.h> +#include <QtMediaServices/qmediaplaylistcontrol.h> +#include <QtMediaServices/qvideowidget.h> +#include <QtMediaServices/qgraphicsvideoitem.h> + +//#define DEBUG_PLAYER_STATE + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Multimedia) + +/*! + \class QMediaPlayer + \brief The QMediaPlayer class allows the playing of a media source. + \ingroup multimedia + \since 4.7 + \preliminary + + The QMediaPlayer class is a high level media playback class. It can be used + to playback such content as songs, movies and internet radio. The content + to playback is specified as a QMediaContent, which can be thought of as a + main or canonical URL with addition information attached. When provided + with a QMediaContent playback may be able to commence. + + \code + player = new QMediaPlayer; + connect(player, SIGNAL(positionChanged(qint64)), this, SLOT(positionChanged(qint64))); + player->setMedia(QUrl::fromLocalFile("/Users/me/Music/coolsong.mp3")); + player->setVolume(50); + player->play(); + \endcode + + QVideoWidget can be used with QMediaPlayer for video rendering and QMediaPlaylist + for accessing playlist functionality. + + \code + player = new QMediaPlayer; + + playlist = new QMediaPlaylist; + playlist->setMediaObject(player); + playlist->append(QUrl("http://example.com/movie1.mp4")); + playlist->append(QUrl("http://example.com/movie2.mp4")); + + widget = new QVideoWidget; + widget->setMediaObject(player); + widget->show(); + + player->play(); + \endcode + + \sa QMediaObject, QMediaService, QVideoWidget, QMediaPlaylist +*/ + +namespace +{ +class MediaPlayerRegisterMetaTypes +{ +public: + MediaPlayerRegisterMetaTypes() + { + qRegisterMetaType<QMediaPlayer::State>(); + qRegisterMetaType<QMediaPlayer::MediaStatus>(); + qRegisterMetaType<QMediaPlayer::Error>(); + } +} _registerPlayerMetaTypes; +} + +class QMediaPlayerPrivate : public QMediaObjectPrivate +{ + Q_DECLARE_NON_CONST_PUBLIC(QMediaPlayer) + +public: + QMediaPlayerPrivate() + : provider(0) + , control(0) + , playlistControl(0) + , state(QMediaPlayer::StoppedState) + , error(QMediaPlayer::NoError) + , filterStates(false) + , playlist(0) + {} + + QMediaServiceProvider *provider; + QMediaPlayerControl* control; + QMediaPlaylistControl* playlistControl; + QMediaPlayer::State state; + QMediaPlayer::Error error; + QString errorString; + bool filterStates; + + QMediaPlaylist *playlist; + QPointer<QVideoWidget> videoWidget; +#ifndef QT_NO_GRAPHICSVIEW + QPointer<QGraphicsVideoItem> videoItem; +#endif + + void _q_stateChanged(QMediaPlayer::State state); + void _q_mediaStatusChanged(QMediaPlayer::MediaStatus status); + void _q_error(int error, const QString &errorString); + void _q_updateMedia(const QMediaContent&); + void _q_playlistDestroyed(); +}; + +#define ENUM_NAME(c,e,v) (c::staticMetaObject.enumerator(c::staticMetaObject.indexOfEnumerator(e)).valueToKey((v))) + +void QMediaPlayerPrivate::_q_stateChanged(QMediaPlayer::State ps) +{ + Q_Q(QMediaPlayer); + +#ifdef DEBUG_PLAYER_STATE + qDebug() << "State changed:" << ENUM_NAME(QMediaPlayer, "State", ps) << (filterStates ? "(filtered)" : ""); +#endif + + if (filterStates) + return; + + if (playlist + && !playlistControl //service should do this itself + && ps != state && ps == QMediaPlayer::StoppedState + && control->mediaStatus() == QMediaPlayer::EndOfMedia) { + playlist->next(); + ps = control->state(); + } + + if (ps != state) { + state = ps; + + if (ps == QMediaPlayer::PlayingState) + q->addPropertyWatch("position"); + else + q->removePropertyWatch("position"); + + emit q->stateChanged(ps); + } +} + +void QMediaPlayerPrivate::_q_mediaStatusChanged(QMediaPlayer::MediaStatus status) +{ + Q_Q(QMediaPlayer); + +#ifdef DEBUG_PLAYER_STATE + qDebug() << "MediaStatus changed:" << ENUM_NAME(QMediaPlayer, "MediaStatus", status); +#endif + + switch (status) { + case QMediaPlayer::StalledMedia: + case QMediaPlayer::BufferingMedia: + q->addPropertyWatch("bufferStatus"); + emit q->mediaStatusChanged(status); + break; + default: + q->removePropertyWatch("bufferStatus"); + emit q->mediaStatusChanged(status); + break; + } + +} + +void QMediaPlayerPrivate::_q_error(int error, const QString &errorString) +{ + Q_Q(QMediaPlayer); + + this->error = QMediaPlayer::Error(error); + this->errorString = errorString; + + emit q->error(this->error); +} + +void QMediaPlayerPrivate::_q_updateMedia(const QMediaContent &media) +{ + const QMediaPlayer::State currentState = state; + + filterStates = true; + control->setMedia(media, 0); + + if (!media.isNull()) { + switch (currentState) { + case QMediaPlayer::PlayingState: + control->play(); + break; + case QMediaPlayer::PausedState: + control->pause(); + break; + default: + break; + } + } + filterStates = false; + + state = control->state(); + + if (state != currentState) { +#ifdef DEBUG_PLAYER_STATE + qDebug() << "State changed:" << ENUM_NAME(QMediaPlayer, "State", state); +#endif + emit q_func()->stateChanged(state); + } +} + +void QMediaPlayerPrivate::_q_playlistDestroyed() +{ + playlist = 0; + + control->setMedia(QMediaContent(), 0); +} + +static QMediaService *playerService(QMediaPlayer::Flags flags, QMediaServiceProvider *provider) +{ + if (flags) { + QMediaServiceProviderHint::Features features = 0; + if (flags & QMediaPlayer::LowLatency) + features |= QMediaServiceProviderHint::LowLatencyPlayback; + + if (flags & QMediaPlayer::StreamPlayback) + features |= QMediaServiceProviderHint::StreamPlayback; + + return provider->requestService(Q_MEDIASERVICE_MEDIAPLAYER, + QMediaServiceProviderHint(features)); + } else + return provider->requestService(Q_MEDIASERVICE_MEDIAPLAYER); +} + + +/*! + Construct a QMediaPlayer that uses the playback service from \a provider, + parented to \a parent and with \a flags. + + If a playback service is not specified the system default will be used. +*/ + +QMediaPlayer::QMediaPlayer(QObject *parent, QMediaPlayer::Flags flags, QMediaServiceProvider *provider): + QMediaObject(*new QMediaPlayerPrivate, + parent, + playerService(flags,provider)) +{ + Q_D(QMediaPlayer); + + d->provider = provider; + + if (d->service == 0) { + d->error = ServiceMissingError; + } else { + d->control = qobject_cast<QMediaPlayerControl*>(d->service->control(QMediaPlayerControl_iid)); + d->playlistControl = qobject_cast<QMediaPlaylistControl*>(d->service->control(QMediaPlaylistControl_iid)); + if (d->control != 0) { + connect(d->control, SIGNAL(mediaChanged(QMediaContent)), SIGNAL(mediaChanged(QMediaContent))); + connect(d->control, SIGNAL(stateChanged(QMediaPlayer::State)), SLOT(_q_stateChanged(QMediaPlayer::State))); + connect(d->control, SIGNAL(mediaStatusChanged(QMediaPlayer::MediaStatus)), + SLOT(_q_mediaStatusChanged(QMediaPlayer::MediaStatus))); + connect(d->control, SIGNAL(error(int,QString)), SLOT(_q_error(int,QString))); + + connect(d->control, SIGNAL(durationChanged(qint64)), SIGNAL(durationChanged(qint64))); + connect(d->control, SIGNAL(positionChanged(qint64)), SIGNAL(positionChanged(qint64))); + connect(d->control, SIGNAL(audioAvailableChanged(bool)), SIGNAL(audioAvailableChanged(bool))); + connect(d->control, SIGNAL(videoAvailableChanged(bool)), SIGNAL(videoAvailableChanged(bool))); + connect(d->control, SIGNAL(volumeChanged(int)), SIGNAL(volumeChanged(int))); + connect(d->control, SIGNAL(mutedChanged(bool)), SIGNAL(mutedChanged(bool))); + connect(d->control, SIGNAL(seekableChanged(bool)), SIGNAL(seekableChanged(bool))); + connect(d->control, SIGNAL(playbackRateChanged(qreal)), SIGNAL(playbackRateChanged(qreal))); + + if (d->control->state() == PlayingState) + addPropertyWatch("position"); + + if (d->control->mediaStatus() == StalledMedia || d->control->mediaStatus() == BufferingMedia) + addPropertyWatch("bufferStatus"); + } + } +} + + +/*! + Destroys the player object. +*/ + +QMediaPlayer::~QMediaPlayer() +{ + Q_D(QMediaPlayer); + + d->provider->releaseService(d->service); +} + +QMediaContent QMediaPlayer::media() const +{ + Q_D(const QMediaPlayer); + + if (d->control != 0) + return d->control->media(); + + return QMediaContent(); +} + +/*! + Returns the stream source of media data. + + This is only valid if a stream was passed to setMedia(). + + \sa setMedia() +*/ + +const QIODevice *QMediaPlayer::mediaStream() const +{ + Q_D(const QMediaPlayer); + + if (d->control != 0) + return d->control->mediaStream(); + + return 0; +} + +QMediaPlayer::State QMediaPlayer::state() const +{ + return d_func()->state; +} + +QMediaPlayer::MediaStatus QMediaPlayer::mediaStatus() const +{ + Q_D(const QMediaPlayer); + + if (d->control != 0) + return d->control->mediaStatus(); + + return QMediaPlayer::UnknownMediaStatus; +} + +qint64 QMediaPlayer::duration() const +{ + Q_D(const QMediaPlayer); + + if (d->control != 0) + return d->control->duration(); + + return -1; +} + +qint64 QMediaPlayer::position() const +{ + Q_D(const QMediaPlayer); + + if (d->control != 0) + return d->control->position(); + + return 0; +} + +int QMediaPlayer::volume() const +{ + Q_D(const QMediaPlayer); + + if (d->control != 0) + return d->control->volume(); + + return 0; +} + +bool QMediaPlayer::isMuted() const +{ + Q_D(const QMediaPlayer); + + if (d->control != 0) + return d->control->isMuted(); + + return false; +} + +int QMediaPlayer::bufferStatus() const +{ + Q_D(const QMediaPlayer); + + if (d->control != 0) + return d->control->bufferStatus(); + + return 0; +} + +bool QMediaPlayer::isAudioAvailable() const +{ + Q_D(const QMediaPlayer); + + if (d->control != 0) + return d->control->isAudioAvailable(); + + return false; +} + +bool QMediaPlayer::isVideoAvailable() const +{ + Q_D(const QMediaPlayer); + + if (d->control != 0) + return d->control->isVideoAvailable(); + + return false; +} + +bool QMediaPlayer::isSeekable() const +{ + Q_D(const QMediaPlayer); + + if (d->control != 0) + return d->control->isSeekable(); + + return false; +} + +qreal QMediaPlayer::playbackRate() const +{ + Q_D(const QMediaPlayer); + + if (d->control != 0) + return d->control->playbackRate(); + + return 0.0; +} + +/*! + Returns the current error state. +*/ + +QMediaPlayer::Error QMediaPlayer::error() const +{ + return d_func()->error; +} + +QString QMediaPlayer::errorString() const +{ + return d_func()->errorString; +} + +//public Q_SLOTS: +/*! + Start or resume playing the current source. +*/ + +void QMediaPlayer::play() +{ + Q_D(QMediaPlayer); + + if (d->control == 0) { + QMetaObject::invokeMethod(this, "_q_error", Qt::QueuedConnection, + Q_ARG(int, QMediaPlayer::ServiceMissingError), + Q_ARG(QString, tr("The QMediaPlayer object does not have a valid service"))); + return; + } + + //if playlist control is available, the service should advance itself + if (d->playlist && !d->playlistControl && d->playlist->currentIndex() == -1 && !d->playlist->isEmpty()) + d->playlist->setCurrentIndex(0); + + // Reset error conditions + d->error = NoError; + d->errorString = QString(); + + d->control->play(); +} + +/*! + Pause playing the current source. +*/ + +void QMediaPlayer::pause() +{ + Q_D(QMediaPlayer); + + if (d->control != 0) + d->control->pause(); +} + +/*! + Stop playing, and reset the play position to the beginning. +*/ + +void QMediaPlayer::stop() +{ + Q_D(QMediaPlayer); + + if (d->control != 0) + d->control->stop(); +} + +void QMediaPlayer::setPosition(qint64 position) +{ + Q_D(QMediaPlayer); + + if (d->control == 0 || !isSeekable()) + return; + + d->control->setPosition(qBound(qint64(0), duration(), position)); +} + +void QMediaPlayer::setVolume(int v) +{ + Q_D(QMediaPlayer); + + if (d->control == 0) + return; + + int clamped = qBound(0, v, 100); + if (clamped == volume()) + return; + + d->control->setVolume(clamped); +} + +void QMediaPlayer::setMuted(bool muted) +{ + Q_D(QMediaPlayer); + + if (d->control == 0 || muted == isMuted()) + return; + + d->control->setMuted(muted); +} + +void QMediaPlayer::setPlaybackRate(qreal rate) +{ + Q_D(QMediaPlayer); + + if (d->control != 0) + d->control->setPlaybackRate(rate); +} + +/*! + Sets the current \a media source. + + If a \a stream is supplied; media data will be read from it instead of resolving the media + source. In this case the media source may still be used to resolve additional information + about the media such as mime type. + + Setting the media to a null QMediaContent will cause the player to discard all + information relating to the current media source and to cease all I/O operations related + to that media. +*/ + +void QMediaPlayer::setMedia(const QMediaContent &media, QIODevice *stream) +{ + Q_D(QMediaPlayer); + + if (d->control != 0) + d_func()->control->setMedia(media, stream); +} + +/*! + \internal +*/ + +void QMediaPlayer::bind(QObject *obj) +{ + Q_D(QMediaPlayer); + + if (d->control != 0) { + QMediaPlaylist *playlist = qobject_cast<QMediaPlaylist*>(obj); + + if (playlist) { + if (d->playlist) + d->playlist->setMediaObject(0); + + d->playlist = playlist; + connect(d->playlist, SIGNAL(currentMediaChanged(QMediaContent)), + this, SLOT(_q_updateMedia(QMediaContent))); + connect(d->playlist, SIGNAL(destroyed()), this, SLOT(_q_playlistDestroyed())); + + setMedia(playlist->currentMedia()); + + return; + } + + QVideoWidget *videoWidget = qobject_cast<QVideoWidget*>(obj); +#ifndef QT_NO_GRAPHICSVIEW + QGraphicsVideoItem *videoItem = qobject_cast<QGraphicsVideoItem*>(obj); +#endif + + if (videoWidget +#ifndef QT_NO_GRAPHICSVIEW + || videoItem +#endif + ) { + //detach the current video output + if (d->videoWidget) { + d->videoWidget->setMediaObject(0); + d->videoWidget = 0; + } + +#ifndef QT_NO_GRAPHICSVIEW + if (d->videoItem) { + d->videoItem->setMediaObject(0); + d->videoItem = 0; + } +#endif + } + + if (videoWidget) + d->videoWidget = videoWidget; + +#ifndef QT_NO_GRAPHICSVIEW + if (videoItem) + d->videoItem = videoItem; +#endif + } +} + +/*! + \internal +*/ + +void QMediaPlayer::unbind(QObject *obj) +{ + Q_D(QMediaPlayer); + + if (obj == d->videoWidget) { + d->videoWidget = 0; +#ifndef QT_NO_GRAPHICSVIEW + } else if (obj == d->videoItem) { + d->videoItem = 0; +#endif + } else if (obj == d->playlist) { + disconnect(d->playlist, SIGNAL(currentMediaChanged(QMediaContent)), + this, SLOT(_q_updateMedia(QMediaContent))); + disconnect(d->playlist, SIGNAL(destroyed()), this, SLOT(_q_playlistDestroyed())); + d->playlist = 0; + setMedia(QMediaContent()); + } +} + +/*! + Returns the level of support a media player has for a \a mimeType and a set of \a codecs. + + The \a flags argument allows additional requirements such as performance indicators to be + specified. +*/ +QtMediaServices::SupportEstimate QMediaPlayer::hasSupport(const QString &mimeType, + const QStringList& codecs, + Flags flags) +{ + return QMediaServiceProvider::defaultServiceProvider()->hasSupport(QByteArray(Q_MEDIASERVICE_MEDIAPLAYER), + mimeType, + codecs, + flags); +} + +/*! + Returns a list of MIME types supported by the media player. + + The \a flags argument causes the resultant list to be restricted to MIME types which can be supported + given additional requirements, such as performance indicators. +*/ +QStringList QMediaPlayer::supportedMimeTypes(Flags flags) +{ + return QMediaServiceProvider::defaultServiceProvider()->supportedMimeTypes(QByteArray(Q_MEDIASERVICE_MEDIAPLAYER), + flags); +} + + +// Enums +/*! + \enum QMediaPlayer::State + + Defines the current state of a media player. + + \value PlayingState The media player is currently playing content. + \value PausedState The media player has paused playback, playback of the current track will + resume from the position the player was paused at. + \value StoppedState The media player is not playing content, playback will begin from the start + of the current track. +*/ + +/*! + \enum QMediaPlayer::MediaStatus + + Defines the status of a media player's current media. + + \value UnknownMediaStatus The status of the media cannot be determined. + \value NoMedia The is no current media. The player is in the StoppedState. + \value LoadingMedia The current media is being loaded. The player may be in any state. + \value LoadedMedia The current media has been loaded. The player is in the StoppedState. + \value StalledMedia Playback of the current media has stalled due to insufficient buffering or + some other temporary interruption. The player is in the PlayingState or PausedState. + \value BufferingMedia The player is buffering data but has enough data buffered for playback to + continue for the immediate future. The player is in the PlayingState or PausedState. + \value BufferedMedia The player has fully buffered the current media. The player is in the + PlayingState or PausedState. + \value EndOfMedia Playback has reached the end of the current media. The player is in the + StoppedState. + \value InvalidMedia The current media cannot be played. The player is in the StoppedState. +*/ + +/*! + \enum QMediaPlayer::Error + + Defines a media player error condition. + + \value NoError No error has occurred. + \value ResourceError A media resource couldn't be resolved. + \value FormatError The format of a media resource isn't (fully) supported. Playback may still + be possible, but without an audio or video component. + \value NetworkError A network error occurred. + \value AccessDeniedError There are not the appropriate permissions to play a media resource. + \value ServiceMissingError A valid playback service was not found, playback cannot proceed. +*/ + +// Signals +/*! + \fn QMediaPlayer::error(QMediaPlayer::Error error) + + Signals that an \a error condition has occurred. + + \sa errorString() +*/ + +/*! + \fn void QMediaPlayer::stateChanged(State state) + + Signal the \a state of the Player object has changed. +*/ + +/*! + \fn QMediaPlayer::mediaStatusChanged(QMediaPlayer::MediaStatus status) + + Signals that the \a status of the current media has changed. + + \sa mediaStatus() +*/ + +/*! + \fn void QMediaPlayer::mediaChanged(const QMediaContent &media); + + Signals that the current playing content will be obtained from \a media. + + \sa media() +*/ + +/*! + \fn void QMediaPlayer::playbackRateChanged(qreal rate); + + Signals the playbackRate has changed to \a rate. +*/ + +/*! + \fn void QMediaPlayer::seekableChanged(bool seekable); + + Signals the \a seekable status of the player object has changed. +*/ + +// Properties +/*! + \property QMediaPlayer::state + \brief the media player's playback state. + + By default this property is QMediaPlayer::Stopped + + \sa mediaStatus(), play(), pause(), stop() +*/ + +/*! + \property QMediaPlayer::error + \brief a string describing the last error condition. + + \sa error() +*/ + +/*! + \property QMediaPlayer::media + \brief the active media source being used by the player object. + + The player object will use the QMediaContent for selection of the content to + be played. + + By default this property has a null QMediaContent. + + Setting this property to a null QMediaContent will cause the player to discard all + information relating to the current media source and to cease all I/O operations related + to that media. + + \sa QMediaContent +*/ + +/*! + \property QMediaPlayer::mediaStatus + \brief the status of the current media stream. + + The stream status describes how the playback of the current stream is + progressing. + + By default this property is QMediaPlayer::NoMedia + + \sa state +*/ + +/*! + \property QMediaPlayer::duration + \brief the duration of the current media. + + The value is the total playback time in milliseconds of the current media. + The value may change across the life time of the QMediaPlayer object and + may not be available when initial playback begins, connect to the + durationChanged() signal to receive status notifications. +*/ + +/*! + \property QMediaPlayer::position + \brief the playback position of the current media. + + The value is the current playback position, expressed in milliseconds since + the beginning of the media. Periodically changes in the position will be + indicated with the signal positionChanged(), the interval between updates + can be set with QMediaObject's method setNotifyInterval(). +*/ + +/*! + \property QMediaPlayer::volume + \brief the current playback volume. + + The playback volume is a linear in effect and the value can range from 0 - + 100, values outside this range will be clamped. +*/ + +/*! + \property QMediaPlayer::muted + \brief the muted state of the current media. + + The value will be true if the playback volume is muted; otherwise false. +*/ + +/*! + \property QMediaPlayer::bufferStatus + \brief the percentage of the temporary buffer filled before playback begins. + + When the player object is buffering; this property holds the percentage of + the temporary buffer that is filled. The buffer will need to reach 100% + filled before playback can resume, at which time the MediaStatus will be + BufferedMedia. + + \sa mediaStatus() +*/ + +/*! + \property QMediaPlayer::audioAvailable + \brief the audio availabilty status for the current media. + + As the life time of QMediaPlayer can be longer than the playback of one + QMediaContent, this property may change over time, the + audioAvailableChanged signal can be used to monitor it's status. +*/ + +/*! + \property QMediaPlayer::videoAvailable + \brief the video availability status for the current media. + + If available, the QVideoWidget class can be used to view the video. As the + life time of QMediaPlayer can be longer than the playback of one + QMediaContent, this property may change over time, the + videoAvailableChanged signal can be used to monitor it's status. + + \sa QVideoWidget, QMediaContent +*/ + +/*! + \property QMediaPlayer::seekable + \brief the seek-able status of the current media + + If seeking is supported this property will be true; false otherwise. The + status of this property may change across the life time of the QMediaPlayer + object, use the seekableChanged signal to monitor changes. +*/ + +/*! + \property QMediaPlayer::playbackRate + \brief the playback rate of the current media. + + This value is a multiplier applied to the media's standard play rate. By + default this value is 1.0, indicating that the media is playing at the + standard pace. Values higher than 1.0 will increase the rate of play. + Values less than zero can be set and indicate the media will rewind at the + multiplier of the standard pace. + + Not all playback services support change of the playback rate. It is + framework defined as to the status and quality of audio and video + while fast forwarding or rewinding. +*/ + +/*! + \fn void QMediaPlayer::durationChanged(qint64 duration) + + Signal the duration of the content has changed to \a duration, expressed in milliseconds. +*/ + +/*! + \fn void QMediaPlayer::positionChanged(qint64 position) + + Signal the position of the content has changed to \a position, expressed in + milliseconds. +*/ + +/*! + \fn void QMediaPlayer::volumeChanged(int volume) + + Signal the playback volume has changed to \a volume. +*/ + +/*! + \fn void QMediaPlayer::mutedChanged(bool muted) + + Signal the mute state has changed to \a muted. +*/ + +/*! + \fn void QMediaPlayer::audioAvailableChanged(bool available) + + Signals the availability of audio content has changed to \a available. +*/ + +/*! + \fn void QMediaPlayer::videoAvailableChanged(bool videoAvailable) + + Signal the availability of visual content has changed to \a videoAvailable. +*/ + +/*! + \fn void QMediaPlayer::bufferStatusChanged(int percentFilled) + + Signal the amount of the local buffer filled as a percentage by \a percentFilled. +*/ + +/*! + \enum QMediaPlayer::Flag + + \value LowLatency + The player is expected to be used with simple audio formats, + but playback should start without significant delay. + Such playback service can be used for beeps, ringtones, etc. + + \value StreamPlayback + The player is expected to play QIODevice based streams. + If passed to QMediaPlayer constructor, the service supporting + streams playback will be choosen. +*/ + +QT_END_NAMESPACE + +QT_END_HEADER + +#include "moc_qmediaplayer.cpp" diff --git a/src/multimedia/mediaservices/playback/qmediaplayer.h b/src/multimedia/mediaservices/playback/qmediaplayer.h new file mode 100644 index 0000000..d75c58a --- /dev/null +++ b/src/multimedia/mediaservices/playback/qmediaplayer.h @@ -0,0 +1,203 @@ +/**************************************************************************** +** +** 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 QtMediaServices module 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QMEDIAPLAYER_H +#define QMEDIAPLAYER_H + +#include <QtMediaServices/qmediaserviceprovider.h> +#include <QtMediaServices/qmediaobject.h> +#include <QtMediaServices/qmediacontent.h> + + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Multimedia) + + +class QMediaPlaylist; + +class QMediaPlayerPrivate; +class Q_MEDIASERVICES_EXPORT QMediaPlayer : public QMediaObject +{ + Q_OBJECT + Q_PROPERTY(QMediaContent media READ media WRITE setMedia NOTIFY mediaChanged) + Q_PROPERTY(qint64 duration READ duration NOTIFY durationChanged) + Q_PROPERTY(qint64 position READ position WRITE setPosition NOTIFY positionChanged) + Q_PROPERTY(int volume READ volume WRITE setVolume NOTIFY volumeChanged) + Q_PROPERTY(bool muted READ isMuted WRITE setMuted NOTIFY mutedChanged) + Q_PROPERTY(int bufferStatus READ bufferStatus NOTIFY bufferStatusChanged) + Q_PROPERTY(bool audioAvailable READ isAudioAvailable NOTIFY audioAvailableChanged) + Q_PROPERTY(bool videoAvailable READ isVideoAvailable NOTIFY videoAvailableChanged) + Q_PROPERTY(bool seekable READ isSeekable NOTIFY seekableChanged) + Q_PROPERTY(qreal playbackRate READ playbackRate WRITE setPlaybackRate NOTIFY playbackRateChanged) + Q_PROPERTY(State state READ state NOTIFY stateChanged) + Q_PROPERTY(MediaStatus mediaStatus READ mediaStatus NOTIFY mediaStatusChanged) + Q_PROPERTY(QString error READ errorString) + Q_ENUMS(State) + Q_ENUMS(MediaStatus) + +public: + enum State + { + StoppedState, + PlayingState, + PausedState + }; + + enum MediaStatus + { + UnknownMediaStatus, + NoMedia, + LoadingMedia, + LoadedMedia, + StalledMedia, + BufferingMedia, + BufferedMedia, + EndOfMedia, + InvalidMedia + }; + + enum Flag + { + LowLatency = 0x01, + StreamPlayback = 0x02 + }; + Q_DECLARE_FLAGS(Flags, Flag) + + enum Error + { + NoError, + ResourceError, + FormatError, + NetworkError, + AccessDeniedError, + ServiceMissingError + }; + + QMediaPlayer(QObject *parent = 0, Flags flags = 0, QMediaServiceProvider *provider = QMediaServiceProvider::defaultServiceProvider()); + ~QMediaPlayer(); + + static QtMediaServices::SupportEstimate hasSupport(const QString &mimeType, + const QStringList& codecs = QStringList(), + Flags flags = 0); + static QStringList supportedMimeTypes(Flags flags = 0); + + QMediaContent media() const; + const QIODevice *mediaStream() const; + + State state() const; + MediaStatus mediaStatus() const; + + qint64 duration() const; + qint64 position() const; + + int volume() const; + bool isMuted() const; + bool isAudioAvailable() const; + bool isVideoAvailable() const; + + int bufferStatus() const; + + bool isSeekable() const; + qreal playbackRate() const; + + Error error() const; + QString errorString() const; + +public Q_SLOTS: + void play(); + void pause(); + void stop(); + + void setPosition(qint64 position); + void setVolume(int volume); + void setMuted(bool muted); + + void setPlaybackRate(qreal rate); + + void setMedia(const QMediaContent &media, QIODevice *stream = 0); + +Q_SIGNALS: + void mediaChanged(const QMediaContent &media); + + void stateChanged(QMediaPlayer::State newState); + void mediaStatusChanged(QMediaPlayer::MediaStatus status); + + void durationChanged(qint64 duration); + void positionChanged(qint64 position); + + void volumeChanged(int volume); + void mutedChanged(bool muted); + void audioAvailableChanged(bool audioAvailable); + void videoAvailableChanged(bool videoAvailable); + + void bufferStatusChanged(int percentFilled); + + void seekableChanged(bool seekable); + void playbackRateChanged(qreal rate); + + void error(QMediaPlayer::Error error); + +public: + virtual void bind(QObject*); + virtual void unbind(QObject*); + +private: + Q_DISABLE_COPY(QMediaPlayer) + Q_DECLARE_PRIVATE(QMediaPlayer) + Q_PRIVATE_SLOT(d_func(), void _q_stateChanged(QMediaPlayer::State)) + Q_PRIVATE_SLOT(d_func(), void _q_mediaStatusChanged(QMediaPlayer::MediaStatus)) + Q_PRIVATE_SLOT(d_func(), void _q_error(int, const QString &)) + Q_PRIVATE_SLOT(d_func(), void _q_updateMedia(const QMediaContent&)) + Q_PRIVATE_SLOT(d_func(), void _q_playlistDestroyed()) +}; + +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(QMediaPlayer::State) +Q_DECLARE_METATYPE(QMediaPlayer::MediaStatus) +Q_DECLARE_METATYPE(QMediaPlayer::Error) + +QT_END_HEADER + +#endif // QMEDIAPLAYER_H diff --git a/src/multimedia/mediaservices/playback/qmediaplayercontrol.cpp b/src/multimedia/mediaservices/playback/qmediaplayercontrol.cpp new file mode 100644 index 0000000..ca58ce4 --- /dev/null +++ b/src/multimedia/mediaservices/playback/qmediaplayercontrol.cpp @@ -0,0 +1,378 @@ +/**************************************************************************** +** +** 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 QtMediaServices module 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 <QtMediaServices/qmediaplayercontrol.h> +#include <QtMediaServices/private/qmediacontrol_p.h> +#include <QtMediaServices/qmediaplayer.h> + + +QT_BEGIN_NAMESPACE + + +/*! + \class QMediaPlayerControl + \ingroup multimedia-serv + \since 4.7 + \preliminary + \brief The QMediaPlayerControl class provides access to the media playing + functionality of a QMediaService. + + If a QMediaService can play media is will implement QMediaPlayerControl. + This control provides a means to set the \l {setMedia()}{media} to play, + \l {play()}{start}, \l {pause()} {pause} and \l {stop()}{stop} playback, + \l {setPosition()}{seek}, and control the \l {setVolume()}{volume}. + It also provides feedback on the \l {duration()}{duration} of the media, + the current \l {position()}{position}, and \l {bufferStatus()}{buffering} + progress. + + The functionality provided by this control is exposed to application + code through the QMediaPlayer class. + + The interface name of QMediaPlayerControl is \c com.nokia.Qt.QMediaPlayerControl/1.0 as + defined in QMediaPlayerControl_iid. + + \sa QMediaService::control(), QMediaPlayer +*/ + +/*! + \macro QMediaPlayerControl_iid + + \c com.nokia.Qt.QMediaPlayerControl/1.0 + + Defines the interface name of the QMediaPlayerControl class. + + \relates QMediaPlayerControl +*/ + +/*! + Destroys a media player control. +*/ +QMediaPlayerControl::~QMediaPlayerControl() +{ +} + +/*! + Constructs a new media player control with the given \a parent. +*/ +QMediaPlayerControl::QMediaPlayerControl(QObject *parent): + QMediaControl(*new QMediaControlPrivate, parent) +{ +} + +/*! + \fn QMediaPlayerControl::state() const + + Returns the state of a player control. +*/ + +/*! + \fn QMediaPlayerControl::stateChanged(QMediaPlayer::State state) + + Signals that the \a state of a player control has changed. + + \sa state() +*/ + +/*! + \fn QMediaPlayerControl::mediaStatus() const + + Returns the status of the current media. +*/ + +/*! + \fn QMediaPlayerControl::mediaStatusChanged(QMediaPlayer::MediaStatus status) + + Signals that the \a status of the current media has changed. + + \sa mediaStatus() +*/ + + +/*! + \fn QMediaPlayerControl::duration() const + + Returns the duration of the current media in milliseconds. +*/ + +/*! + \fn QMediaPlayerControl::durationChanged(qint64 duration) + + Signals that the \a duration of the current media has changed. + + \sa duration() +*/ + +/*! + \fn QMediaPlayerControl::position() const + + Returns the current playback position in milliseconds. +*/ + +/*! + \fn QMediaPlayerControl::setPosition(qint64 position) + + Sets the playback \a position of the current media. This will initiate a seek and it may take + some time for playback to reach the position set. +*/ + +/*! + \fn QMediaPlayerControl::positionChanged(qint64 position) + + Signals the playback \a position has changed. + + This is only emitted in when there has been a discontinous change in the playback postion, such + as a seek or the position being reset. + + \sa position() +*/ + +/*! + \fn QMediaPlayerControl::volume() const + + Returns the audio volume of a player control. +*/ + +/*! + \fn QMediaPlayerControl::setVolume(int volume) + + Sets the audio \a volume of a player control. +*/ + +/*! + \fn QMediaPlayerControl::volumeChanged(int volume) + + Signals the audio \a volume of a player control has changed. + + \sa volume() +*/ + +/*! + \fn QMediaPlayerControl::isMuted() const + + Returns the mute state of a player control. +*/ + +/*! + \fn QMediaPlayerControl::setMuted(bool mute) + + Sets the \a mute state of a player control. +*/ + +/*! + \fn QMediaPlayerControl::mutedChanged(bool mute) + + Signals a change in the \a mute status of a player control. + + \sa isMuted() +*/ + +/*! + \fn QMediaPlayerControl::bufferStatus() const + + Returns the buffering progress of the current media. Progress is measured in the percentage + of the buffer filled. +*/ + +/*! + \fn QMediaPlayerControl::bufferStatusChanged(int progress) + + Signals that buffering \a progress has changed. + + \sa bufferStatus() +*/ + +/*! + \fn QMediaPlayerControl::isAudioAvailable() const + + Identifies if there is audio output available for the current media. + + Returns true if audio output is available and false otherwise. +*/ + +/*! + \fn QMediaPlayerControl::audioAvailableChanged(bool audio) + + Signals that there has been a change in the availability of \a audio output. + + \sa isAudioAvailable() +*/ + +/*! + \fn QMediaPlayerControl::isVideoAvailable() const + + Identifies if there is video output available for the current media. + + Returns true if video output is available and false otherwise. +*/ + +/*! + \fn QMediaPlayerControl::videoAvailableChanged(bool video) + + Signals that there has been a change in the availability of \a video output. + + \sa isVideoAvailable() +*/ + +/*! + \fn QMediaPlayerControl::isSeekable() const + + Identifies if the current media is seekable. + + Returns true if it possible to seek within the current media, and false otherwise. +*/ + +/*! + \fn QMediaPlayerControl::seekableChanged(bool seekable) + + Signals that the \a seekable state of a player control has changed. + + \sa isSeekable() +*/ + +/*! + \fn QMediaPlayerControl::availablePlaybackRanges() const + + Returns a range of times in milliseconds that can be played back. + + Usually for local files this is a continuous interval equal to [0..duration()] + or an empty time range if seeking is not supported, but for network sources + it refers to the buffered parts of the media. +*/ + +/*! + \fn QMediaPlayerControl::availablePlaybackRangesChanged(const QMediaTimeRange &ranges) + + Signals that the available media playback \a ranges have changed. + + \sa QMediaPlayerControl::availablePlaybackRanges() +*/ + +/*! + \fn qreal QMediaPlayerControl::playbackRate() const + + Returns the rate of playback. +*/ + +/*! + \fn QMediaPlayerControl::setPlaybackRate(qreal rate) + + Sets the \a rate of playback. +*/ + +/*! + \fn QMediaPlayerControl::media() const + + Returns the current media source. +*/ + +/*! + \fn QMediaPlayerControl::mediaStream() const + + Returns the current media stream. This is only a valid if a stream was passed to setMedia(). + + \sa setMedia() +*/ + +/*! + \fn QMediaPlayerControl::setMedia(const QMediaContent &media, QIODevice *stream) + + Sets the current \a media source. If a \a stream is supplied; data will be read from that + instead of attempting to resolve the media source. The media source may still be used to + supply media information such as mime type. + + Setting the media to a null QMediaContent will cause the control to discard all + information relating to the current media source and to cease all I/O operations related + to that media. +*/ + +/*! + \fn QMediaPlayerControl::mediaChanged(const QMediaContent& content) + + Signals that the current media \a content has changed. +*/ + +/*! + \fn QMediaPlayerControl::play() + + Starts playback of the current media. + + If successful the player control will immediately enter the \l {QMediaPlayer::PlayingState} + {playing} state. + + \sa state() +*/ + +/*! + \fn QMediaPlayerControl::pause() + + Pauses playback of the current media. + + If sucessful the player control will immediately enter the \l {QMediaPlayer::PausedState} + {paused} state. + + \sa state(), play(), stop() +*/ + +/*! + \fn QMediaPlayerControl::stop() + + Stops playback of the current media. + + If succesful the player control will immediately enter the \l {QMediaPlayer::StoppedState} + {stopped} state. +*/ + +/*! + \fn QMediaPlayerControl::error(int error, const QString &errorString) + + Signals that an \a error has occurred. The \a errorString provides a more detailed explanation. +*/ + +/*! + \fn QMediaPlayerControl::playbackRateChanged(qreal rate) + + Signal emitted when playback rate changes to \a rate. +*/ + +QT_END_NAMESPACE + +#include "moc_qmediaplayercontrol.cpp" + diff --git a/src/multimedia/mediaservices/playback/qmediaplayercontrol.h b/src/multimedia/mediaservices/playback/qmediaplayercontrol.h new file mode 100644 index 0000000..7a3c24e --- /dev/null +++ b/src/multimedia/mediaservices/playback/qmediaplayercontrol.h @@ -0,0 +1,131 @@ +/**************************************************************************** +** +** 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 QtMediaServices module 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QMEDIAPLAYERCONTROL_H +#define QMEDIAPLAYERCONTROL_H + +#include <QtCore/qpair.h> + +#include <QtMediaServices/qmediacontrol.h> +#include <QtMediaServices/qmediaplayer.h> +#include <QtMediaServices/qmediatimerange.h> + + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Multimedia) + + +class QMediaPlaylist; + +class Q_MEDIASERVICES_EXPORT QMediaPlayerControl : public QMediaControl +{ + Q_OBJECT + +public: + ~QMediaPlayerControl(); + + virtual QMediaPlayer::State state() const = 0; + + virtual QMediaPlayer::MediaStatus mediaStatus() const = 0; + + virtual qint64 duration() const = 0; + + virtual qint64 position() const = 0; + virtual void setPosition(qint64 position) = 0; + + virtual int volume() const = 0; + virtual void setVolume(int volume) = 0; + + virtual bool isMuted() const = 0; + virtual void setMuted(bool muted) = 0; + + virtual int bufferStatus() const = 0; + + virtual bool isAudioAvailable() const = 0; + virtual bool isVideoAvailable() const = 0; + + virtual bool isSeekable() const = 0; + + virtual QMediaTimeRange availablePlaybackRanges() const = 0; + + virtual qreal playbackRate() const = 0; + virtual void setPlaybackRate(qreal rate) = 0; + + virtual QMediaContent media() const = 0; + virtual const QIODevice *mediaStream() const = 0; + virtual void setMedia(const QMediaContent &media, QIODevice *stream) = 0; + + virtual void play() = 0; + virtual void pause() = 0; + virtual void stop() = 0; + +Q_SIGNALS: + void mediaChanged(const QMediaContent& content); + void durationChanged(qint64 duration); + void positionChanged(qint64 position); + void stateChanged(QMediaPlayer::State newState); + void mediaStatusChanged(QMediaPlayer::MediaStatus status); + void volumeChanged(int volume); + void mutedChanged(bool muted); + void audioAvailableChanged(bool audioAvailable); + void videoAvailableChanged(bool videoAvailable); + void bufferStatusChanged(int percentFilled); + void seekableChanged(bool); + void availablePlaybackRangesChanged(const QMediaTimeRange&); + void playbackRateChanged(qreal rate); + void error(int error, const QString &errorString); + +protected: + QMediaPlayerControl(QObject* parent = 0); +}; + +#define QMediaPlayerControl_iid "com.nokia.Qt.QMediaPlayerControl/1.0" +Q_MEDIA_DECLARE_CONTROL(QMediaPlayerControl, QMediaPlayerControl_iid) + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QMEDIAPLAYERCONTROL_H + |