qt 播放视频
media = new Phonon::MediaObject();
vw=new Phonon::VideoWidget();//视频
vw->setWindowFlags(Qt::FramelessWindowHint);
//vw->setWindowState(Qt::WindowMaximized);
vw->resize(1024,600);
vw->move(0,0);
Phonon::AudioOutput *audioOutput = new Phonon::AudioOutput();//声音
media->setCurrentSource(Phonon::MediaSource("/home/video/vw_singin.mpeg"));
Phonon::createPath(media, audioOutput);
Phonon::createPath(media,vw);
//shortcut = new QShortcut(QKeySequence(tr("Ctrl+O", "File|Open")),vw);
//Phonon::VolumeSlider *volumeSlider = new Phonon::VolumeSlider(vw);
//volumeSlider->setAudioOutput(audioOutput);
media->play();
vw->show();