The first frame of the video does not appear when the software is opened in qml

Question

when the software is opened in qml, the first frame of the video does not appear. I am using videooutput and mediaplayer. When I researched, they suggested that I set the autoplay and autoload variables to true. but in the latest version I am using autoload and autoplay are not available in mediaplayer. How can I make the first frame appear on the screen even though I did not start the video when the software was first opened?

import QtQuick
import QtQuick.Controls
import QtMultimedia
import QtQuick.Layouts
import QtQuick.Controls.Material

Item {
    id: videoContainer
    anchors.fill: parent
    Material.accent: sliderColor

    Rectangle {
        anchors.fill: parent
        color: mainBackgroundColor
    }

    MediaPlayer {
        id: mediaPlayer
        videoOutput: videoOutput
        source: "vid1.mp4"
    }

    ColumnLayout {
        anchors.fill: parent
        VideoOutput {
            id: videoOutput
            fillMode: VideoOutput.PreserveAspectCrop
            Layout.fillHeight: true; Layout.fillWidth: true
        }
        RowLayout {
            Layout.leftMargin: 5; Layout.rightMargin: 5
            Button {
                id: playPauseButton
                Layout.fillHeight: true; Layout.fillWidth: true
                Material.background: '#148ca3'
                text: mediaPlayer.playbackState === MediaPlayer.PlayingState ? "Durdur" : "Başlat"
                onClicked: {
                    if (mediaPlayer.playbackState === MediaPlayer.PlayingState) {
                        mediaPlayer.pause()
                    } else {
                        mediaPlayer.play()
                    }
                }
            }
            Slider {
                id: progressBar
                Layout.fillHeight: true; Layout.fillWidth: true
                from: 0
                to: mediaPlayer.duration
                value: mediaPlayer.position
                onValueChanged: mediaPlayer.position = value
            }
        }
    }
}

Answer 1

I had the same problem. I ended up calling:

play();
QThread::msleep(500);
pause();

(my code is C++ not QML)