Using Video from QtMultimedia on RPi4

thealse

I am using a RPi4 and running QML nativly. In the past I used to cross-compile QT but I don't think it is really needed on the RPi4.

I am on the following version:

$ uname -a
Linux raspberrypi 4.19.97-v7l+ #1294 SMP Thu Jan 30 13:21:14 GMT 2020 armv7l GNU/Linux

After installing needed QT modules, I gave the Video element a test and nothing shows up, no error messages either.

Here is the basic code:

import QtQuick 2.9
import QtQuick.Window 2.2
import QtMultimedia 5.5

Window {
    visible: true
    color: "orange"
    width: 800
    height: 600

    Video {
        id: video
        source: "file:///home/pi/test.mp4"
        anchors.fill: parent
        autoLoad: true
        autoPlay: true
    }
    MouseArea {
        anchors.fill: parent
        onClicked: {
            console.log("xxx")
            video.play()
        }
    }
}

I have pretty much installed whatever gstreamer packages I could find and still nothing. The window shows but nothing is playing.