Qt does not play video

Mikeeeeee

Hi!
Qt does not play video.
How to play video?
This myCode.

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QtMultimedia/QMediaPlayer>
#include <QtMultimedia/QMediaPlaylist>
#include <QtMultimediaWidgets/QVideoWidget>

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    QMediaPlayer *player = new QMediaPlayer;

    QMediaPlaylist *playlist = new QMediaPlaylist(player);
    playlist->addMedia(QUrl("C:/Users/New Owner/Downloads/example.mp4"));
    playlist->addMedia(QUrl("C:/Users/Public/Videos/Sample Videos/Живая природа.wmv"));

    QVideoWidget *videoWidget = new QVideoWidget(this);
    videoWidget->setSizeIncrement(600,600);
    player->setVideoOutput(videoWidget);

    videoWidget->show();
    playlist->setCurrentIndex(0);
    player->play();
}

MainWindow::~MainWindow()
{
    delete ui;
}

This too not works

    QMediaPlayer* player = new QMediaPlayer(this);

    QGraphicsVideoItem *item = new QGraphicsVideoItem;
    player->setVideoOutput(item);
    QGraphicsView * graphicsView = new QGraphicsView(this);
    graphicsView->scene()->addItem(item);
    graphicsView->show();

    player->setMedia(QUrl("C:/Users/Public/Videos/Sample Videos/Живая природа.wmv"));
    player->play();

SGaist

Hi,

Try with QUrl::fromLocalFile.

Mikeeeeee

its too not works

    QMediaPlayer *player = new QMediaPlayer;

    QMediaPlaylist *playlist = new QMediaPlaylist(player);
    playlist->addMedia(QUrl::fromLocalFile("C:/Users/New Owner/Downloads/example.mp4"));
    playlist->addMedia(QUrl::fromLocalFile("C:/Users/New Owner/Downloads/example.wmv"));

    QVideoWidget *videoWidget = new QVideoWidget(this);
    videoWidget->setSizeIncrement(600,600);
    player->setVideoOutput(videoWidget);

    videoWidget->show();
    playlist->setCurrentIndex(1);
    player->play();

but this works

#include <QApplication>
#include <QMainWindow>
#include <QVideoWidget>
#include <QMediaPlayer>
#include <QMediaPlaylist>
 
int main(int argc, char * argv[])
{
    QApplication testApp(argc, argv);
    QMainWindow w;
 
    QVideoWidget videoWidget(&w);
    w.setCentralWidget(&videoWidget);
 
    QMediaPlayer *player = new QMediaPlayer(&w);
 
    player->setMedia( QUrl::fromLocalFile("E:\\big_buck_bunny.mp4") );
    player->setVideoOutput(&videoWidget);
 
    w.show();
 
    player->play();
 
    return testApp.exec();
}

How do I move this solution to a class method?

Mikeeeeee

Its work,but how to stretch QMediaPlayer to the whole window?

    QMediaPlayer *player = new QMediaPlayer(this);
    QVideoWidget *videoWidget = new QVideoWidget(this);
    videoWidget->setSizeIncrement(900,900);
    player->setVideoOutput(videoWidget);

    videoWidget->show();
    player->setMedia( QUrl::fromLocalFile("C:/Users/New Owner/Downloads/example.wmv") );
    player->play();

Mikeeeeee

I create a widget in the editor, change its class to QVideoWidget and already stretch it.