Created attachment 307157 [details] [review]
new qt5 qml GL video sink

Very much in the same spirit as the Gtk GL sink

Two things are provided
1. A QQuickItem subclass that renders out RGBA filled GstGLMemory buffers that is instantiated from qml.
2. A sink element that will push buffers into (1)

To use
1. Declare the GstGLVideoItem in qml with an appropriate objectName property set.
2. Get the aforementioned GstGLVideoItem from qml using something like

QQmlApplicationEngine engine;
engine.load(QUrl(QStringLiteral("qrc:/main.qml")));

QObject *rootObject = engine.rootObjects().first();
QQuickItem *videoItem = rootObject->findChild<QQuickItem *> ("videoItem");

3. Set the videoItem on the sink
4. Profit!

What's missing here for this to be merged? Anything needs to be discussed? :)

Nothing now, I fixed all my discussable points ;)

commit 769fffa3d93d89c692a3be6591bac9b610d3acaa
Author: Matthew Waters <matthew@centricular.com>
Date:   Mon Jul 6 23:10:51 2015 +1000

    new qt5 qml GL video sink
    
    Very much in the same spirit as the Gtk GL sink
    
    Two things are provided
    1. A QQuickItem subclass that renders out RGBA filled GstGLMemory
       buffers that is instantiated from qml.
    2. A sink element that will push buffers into (1)
    
    To use
    1. Declare the GstGLVideoItem in qml with an appropriate
       objectName property set.
    2. Get the aforementioned GstGLVideoItem from qml using something like
    
    QQmlApplicationEngine engine;
    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
    
    QObject *rootObject = engine.rootObjects().first();
    QQuickItem *videoItem = rootObject->findChild<QQuickItem *> ("videoItem");
    
    3. Set the videoItem on the sink
    
    https://bugzilla.gnome.org/show_bug.cgi?id=752185

There are the  way for dynamic usage of new sink in QML Loader? If possible create example. I mean can I usage this way?



Rectangle {
    width: 640
    height: 480

    Component {
        id:  glvideoitem_ID 

        GstGLVideoItem {
            id: video
            objectName: "videoItem"
        }
    }

    property bool _switcher: false 

    Timer {
       interval:  2000 
       onTimeout: _switcher = _switcher?false:true
    }

    Loader {
          anchors.fill: parent

          componentSource: _switcher?glvideoitem_ID:undefined          
    } 
}

Sure, apparently it's possible.  See https://bugzilla.gnome.org/show_bug.cgi?id=756082 for the details.

If there are any actual bug with that snippet of qml code please file a separate bug.  This is not a support forum.