Fix QMediaPlayer::isSeekable() on gstreamer

Properly determine whether seeking is allowed on the given
source. Add an auto test.

Fixes: QTBUG-95246
Change-Id: I6a81a4690c6f9d53ef1ef9c217a3077fa63c05d0
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 1 insertions, 6 deletions

diff --git a/examples/multimedia/video/mediaplayer/PlaybackSeekControl.qml b/examples/multimedia/video/mediaplayer/PlaybackSeekControl.qml
index 09e76527c..9907f7c8a 100644
--- a/examples/multimedia/video/mediaplayer/PlaybackSeekControl.qml
+++ b/examples/multimedia/video/mediaplayer/PlaybackSeekControl.qml
@@ -75,16 +75,11 @@ Item {
         Slider {
             id: mediaSlider
             Layout.fillWidth: true
-            enabled: false
+            enabled: mediaPlayer.seekable
             to: 1.0
             value: 0.0
 
             onMoved: mediaPlayer.setPosition(value * mediaPlayer.duration)
-
-            Connections {
-                target: mediaPlayer
-                function onSeekableChanged() { mediaSlider.enabled = mediaPlayer.seekable }
-            }
         }
     }