- Qt 5.5
- Qt Multimedia Widgets
- Media Player Example
- player.h Example File
- Qt 5.5.1 Reference Documentation

# player.h Example File

player/player.h

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the examples of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:BSD$
    ** You may use this file under the terms of the BSD license as follows:
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    #ifndef PLAYER_H
    #define PLAYER_H

    #include "videowidget.h"

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

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

    class PlaylistModel;
    class HistogramWidget;

    class Player : public QWidget
    {
        Q_OBJECT

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

    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 // PLAYER_H