【QT】视频播放

在网上没找到,在书上也没有。后来突然想直接在官网的类里面找Video 居然就有了。

http://qt-project.org/doc/qt-5/qmediaplayer.html的例子补充完整后就可以运行了。

注意pro文件中要添加内容,还有各种必要的头文件要添加。

 

开发环境Qt 5.3.2 

代码如下:

pro文件

QT       += core gui\

            multimedia\

            multimediawidgets





greaterThan(QT_MAJOR_VERSION, 4): QT += widgets\





TARGET = Video_Try

TEMPLATE = app





SOURCES += main.cpp\

        mainwindow.cpp



HEADERS  += mainwindow.h



FORMS    += mainwindow.ui

mainwindow.h

#ifndef MAINWINDOW_H

#define MAINWINDOW_H



#include <QMainWindow>

#include <QMediaPlayer>

#include <QMediaPlaylist>

#include <QVideoWidget>

#include <QUrl>



class MainWindow : public QMainWindow

{

    Q_OBJECT



public:

    QMediaPlaylist * playlist;

    QMediaPlayer * player;

    QVideoWidget * videoWidget;



    MainWindow();

    ~MainWindow();

};



#endif // MAINWINDOW_H

mainwindow.cpp

#include "mainwindow.h"

#include "ui_mainwindow.h"



MainWindow::MainWindow()

{

    playlist = new QMediaPlaylist;

    player = new QMediaPlayer;

    videoWidget = new QVideoWidget;



    setCentralWidget(videoWidget);



    playlist->addMedia(QUrl::fromLocalFile("D:/Users/Qt_project/Video_Try/3.avi"));

    playlist->setCurrentIndex(1);

    player->setPlaylist(playlist);

    player->setVideoOutput(videoWidget);



    videoWidget->show();

    player->play();

}



MainWindow::~MainWindow()

{



}

main

#include "mainwindow.h"

#include <QApplication>



int main(int argc, char *argv[])

{

    QApplication a(argc, argv);

    MainWindow w;

    w.show();



    return a.exec();

}

 

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