player.h Example File

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 #ifndef PLAYER_H
 #define PLAYER_H

 #include <QtWidgets/QWidget>

 #include <qmediaplayer.h>
 #include <qmediaplaylist.h>
 #include "videowidget.h"

 class QAbstractItemView;
 class QLabel;
 class QModelIndex;
 class QSlider;
 class QPushButton;
 class QVideoProbe;

 class QMediaPlayer;
 class QVideoWidget;

 QT_USE_NAMESPACE

 class PlaylistModel;
 class HistogramWidget;

 class Player : public QWidget
 {
     Q_OBJECT
 public:
     Player(QWidget *parent = 0);
     ~Player();

 Q_SIGNALS:
     void fullScreenChanged(bool fullScreen);

 private slots:
     void open();
     void durationChanged(qint64 duration);
     void positionChanged(qint64 progress);
     void metaDataChanged();

     void previousClicked();

     void seek(int seconds);
     void jump(const QModelIndex &index);
     void playlistPositionChanged(int);

     void statusChanged(QMediaPlayer::MediaStatus status);
     void bufferingProgress(int progress);
     void videoAvailableChanged(bool available);

     void displayErrorMessage();

 #ifndef PLAYER_NO_COLOROPTIONS
     void showColorDialog();
 #endif
     void addToPlaylist(const QStringList& fileNames);

 private:
     void setTrackInfo(const QString &info);
     void setStatusInfo(const QString &info);
     void handleCursor(QMediaPlayer::MediaStatus status);
     void updateDurationInfo(qint64 currentInfo);

     QMediaPlayer *player;
     QMediaPlaylist *playlist;
     VideoWidget *videoWidget;
     QLabel *coverLabel;
     QSlider *slider;
     QLabel *labelDuration;
     QPushButton *fullScreenButton;
 #ifndef PLAYER_NO_COLOROPTIONS
     QPushButton *colorButton;
     QDialog *colorDialog;
 #endif

     QLabel *labelHistogram;
     HistogramWidget *histogram;
     QVideoProbe *probe;

     PlaylistModel *playlistModel;
     QAbstractItemView *playlistView;
     QString trackInfo;
     QString statusInfo;
     qint64 duration;
 };

 #endif