Question

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QML Qt 5.2 problem with mp4 video

rated 0 times [ 0] [ 0] / answers: 1 / hits: 3947 / 3 Years ago, thu, may 20, 2021, 2:09:33

I have qt 5.2(ubuntu sdk) installed on Ubuntu 14.04

When I try to run QML code:

MediaPlayer {

    id: mediaPlayer

    source: "../path/test.mp4"

    autoPlay: true

}



VideoOutput {

    id: video

    width: screen.width

    height: screen.height

    source: mediaPlayer

    anchors.horizontalCenter: parent.horizontalCenter

    anchors.verticalCenter: parent.verticalCenter

}

I get:
Error: "Your GStreamer installation is missing a plug-in."

Note:

1) I can play test.mp4 in Totem

2) I can play ogv files with above code

What am I missing?
Any help will be very appreciated.

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2 Years ago

answered 3 Years ago damomnning · Accepted Answer

Installing ubuntu-restricted-extras won't help you because the QML QtMultimedia component still uses the (old) gstreamer 0.10 plugins, check the Qt Multimedia (Qt 5) planning to see:

Port the GStreamer backend to GStreamer 1.0 (currently 0.10).

And since MP4 support in 0.10 is provided by the ffmpeg plugin you need to set up the following PPA to enable MP4 support for 14.04:

sudo apt-add-repository ppa:mc3man/trusty-media

sudo apt-get update

sudo apt-get install gstreamer0.10-ffmpeg

Note: you can play mp4 files in Totem because it uses the 1.0 gstreamer plugins.