Qt 5.11 | Qt Multimedia | Media Player Example | player.h Example File

Qt 5.11.3 Reference Documentation

# player.h Example File

multimediawidgets/player/player.h

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      #ifndef PLAYER_H
      #define PLAYER_H

      #include <QWidget>
      #include <QMediaPlayer>
      #include <QMediaPlaylist>

      class QAbstractItemView;
      class QLabel;
      class QMediaPlayer;
      class QModelIndex;
      class QPushButton;
      class QSlider;
      class QStatusBar;
      class QVideoProbe;
      class QVideoWidget;
      class QAudioProbe;

      class PlaylistModel;
      class HistogramWidget;

      class Player : public QWidget
      {
          Q_OBJECT

      public:
          explicit Player(QWidget *parent = nullptr);
          ~Player();

          bool isPlayerAvailable() const;

          void addToPlaylist(const QList<QUrl> &urls);
          void setCustomAudioRole(const QString &role);

      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 stateChanged(QMediaPlayer::State state);
          void bufferingProgress(int progress);
          void videoAvailableChanged(bool available);

          void displayErrorMessage();

          void showColorDialog();

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

          QMediaPlayer *m_player = nullptr;
          QMediaPlaylist *m_playlist = nullptr;
          QVideoWidget *m_videoWidget = nullptr;
          QLabel *m_coverLabel = nullptr;
          QSlider *m_slider = nullptr;
          QLabel *m_labelDuration = nullptr;
          QPushButton *m_fullScreenButton = nullptr;
          QPushButton *m_colorButton = nullptr;
          QDialog *m_colorDialog = nullptr;
          QLabel *m_statusLabel = nullptr;
          QStatusBar *m_statusBar = nullptr;

          QLabel *m_labelHistogram = nullptr;
          HistogramWidget *m_videoHistogram = nullptr;
          HistogramWidget *m_audioHistogram = nullptr;
          QVideoProbe *m_videoProbe = nullptr;
          QAudioProbe *m_audioProbe = nullptr;

          PlaylistModel *m_playlistModel = nullptr;
          QAbstractItemView *m_playlistView = nullptr;
          QString m_trackInfo;
          QString m_statusInfo;
          qint64 m_duration;
      };

      #endif // PLAYER_H