Dasturlash II 15-hafta mavzu: qt muhitida multimediyali fayllar bilan ishlash

#include
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#include
#include

2. 
   Keyin mainwindow.cpp ni ochamiz. Biz QVideoWidget ob’yektini aniqlashimiz va uni QFrame ob’yekt maketiga qo`shishdan oldin, uni video chiqaruvchi qilib sozlashimiz zarur:
   

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
player = new QMediaPlayer(this);
QVideoWidget* videoWidget = new QVideoWidget(this);
player->setVideoOutput(videoWidget);
ui->movieLayout->addWidget(videoWidget);
player->setVolume(ui->volume->value());
connect(player, &QMediaPlayer::stateChanged, this,
&MainWindow::stateChanged);
connect(player, &QMediaPlayer::positionChanged, this,
&MainWindow::positionChanged);
}

3. 
   Open File slot funksiyasi chaqirilganda ochilgan fayl tanlash dialog oynasi orqali, hech ikkilanmasdan, MP4 va MOV formatlarini tanlashimiz mumkin. Agar istasak, boshqa formatlarni ham kiritishimiz mumkin:
   

QString fileName = QFileDialog::getOpenFileName(this, "Select Movie
File", qApp->applicationDirPath(), "MP4 (*.mp4);;MOV (*.mov)");
Tamom. Kodning qolgan qismi to`liq audio player misoli bilan bir xil bo`ladi. Ushbu misol bilan asosiy farq shundaki, bunda biz video chiqarish vidjetini aniqladik va Qt biz uchun qolganlarni boshqaradi.
Dastur loyihasini qurib, ishga tushirganimizda, quyidagicha ko`rinishdagi foydalanuvchi interfeysi hosil bo`ladi: