61     : player(nullptr, QMediaPlayer::VideoSurface)  in QPlayer()
102     player.setVideoOutput(videoViewer);  in QPlayer()
112     connect(&player, &QMediaPlayer::stateChanged, this, &QPlayer::mediaStateChanged);  in QPlayer()
113     connect(&player, &QMediaPlayer::positionChanged, this, &QPlayer::positionChanged);  in QPlayer()
114     connect(&player, &QMediaPlayer::durationChanged, this, &QPlayer::durationChanged);  in QPlayer()
115     connect(&player, &QMediaPlayer::currentMediaChanged, this, &QPlayer::currentMediaChanged);  in QPlayer()
116     connect(&player, QOverload<QMediaPlayer::Error>::of(&QMediaPlayer::error),  in QPlayer()
128     return player.isAvailable();  in isPlayerAvailable()
159             v = player.volume();  in keyReleaseEvent()
163                 player.setVolume(v);  in keyReleaseEvent()
169             v = player.volume();  in keyReleaseEvent()
173                 player.setVolume(v);  in keyReleaseEvent()
191     player.pause();  in displayImage()
229         player.setPlaylist(list);  in setPlaylist()
241     player.setMedia(url);  in load()
247     switch(player.state()) {  in play()
249         player.pause();  in play()
252         player.play();  in play()
284     if(! player.isSeekable())  in setPosition()
286     if(! player.isMuted())  in setPosition()
287         player.setMuted(true);  in setPosition()
288     player.setPosition(position);  in setPosition()
293     player.setMuted(false);  in unMute()
304             player.setVideoOutput(new QVideoWidget);  in currentMediaChanged()
311             player.setVideoOutput(new QVideoWidget);  in currentMediaChanged()
314             player.setVideoOutput(videoViewer);  in currentMediaChanged()
321     const QString errorString = player.errorString();  in handleError()
324         message += " #" + QString::number(int(player.error()));  in handleError()