wo videooutput

src/gstreamerextras/qgstreamerpipeline.cpp

@@ -63,15 +63,6 @@ void QGstreamerPipelinePrivate::updateMediaObject()
     q->setMediaPlayer(obj);
 }
 
-void QGstreamerPipelinePrivate::updatePipeline(bool ready)
-{
-    Q_Q(QGstreamerPipeline);
-
-    emit rendererIsReady(ready);
-    if (ready)
-        q->setPipeline(pendingPipelineDesc);
-}
-
 QGstreamerPipeline::QGstreamerPipeline(QObject *parent)
     : QGstreamerPipeline(new QGstreamerPipelinePrivate(this), nullptr, parent)
 {
@@ -151,10 +142,12 @@ void QGstreamerPipeline::setMediaPlayer(QMediaPlayer *src)
     connect(d->session, &QGstreamerPlayerSession::pipelineChanged,
         this, &QGstreamerPipeline::pipelineChanged);
     connect(d->session, &QGstreamerPlayerSession::rendererIsReady,
-        d, &QGstreamerPipelinePrivate::updatePipeline);
+        d, &QGstreamerPipelinePrivate::rendererIsReady);
 
     d->mediaPlayer = src;
     emit mediaPlayerChanged();
+
+    setPipeline(d->pendingPipelineDesc);
 }
 
 QString QGstreamerPipeline::pipeline() const

src/gstreamerextras/qgstreamerpipeline_p.h

@@ -76,9 +76,6 @@ public:
 public Q_SLOTS:
     void updateMediaObject();
 
-private Q_SLOTS:
-    void updatePipeline(bool);
-
 Q_SIGNALS:
     void streamsChanged();
     void rendererIsReady(bool);

src/gstreamerextras/qgstreamerplaybin.cpp

@@ -240,8 +240,6 @@ QGstreamerPlaybin::QGstreamerPlaybin(QMediaPlayer *media, QObject *parent)
         d, &QGstreamerPlaybinPrivate::onMediaPlayerChanged);
     connect(d, &QGstreamerPipelinePrivate::rendererIsReady,
         d, &QGstreamerPlaybinPrivate::updatePlaybin);
-
-    d->onMediaPlayerChanged();
 }
 
 QGstreamerPlaybin::QGstreamerPlaybin(QObject *parent)

tests/auto/integration/qml/pipeline/tst_pipeline.qml

@@ -68,6 +68,23 @@ Item {
         signalName: "pipelineChanged"
     }
 
+    MediaPlayer {
+        id: player2
+        autoPlay: false
+        loops: Audio.Infinite
+    }
+
+    Pipeline {
+        id: control2
+        source: player2
+    }
+
+    SignalSpy {
+        id: spyPipeline2
+        target: control2
+        signalName: "pipelineChanged"
+    }
+
     TestCase {
         name: "GstreamerPipelineControl"
 
@@ -78,6 +95,7 @@ Item {
         }
 
         function test_pipeline() {
+            spyPipeline.clear();
             var pp = "videotestsrc ! autovideosink";
             control.pipeline = pp;
             compare(spyPipeline.count, 1);
@@ -85,10 +103,20 @@ Item {
         }
 
         function test_setProp() {
+            spyPipeline.clear();
             control.pipeline = "videotestsrc name=src ! autovideosink";
-            compare(spyPipeline.count, 2);
+            compare(spyPipeline.count, 1);
             control.set("src", {"num-buffers": 1});
             compare(player.error, MediaPlayer.NoError);
         }
+
+        function test_pipelineWithoutOutput() {
+            spyPipeline2.clear();
+            var pp = "videotestsrc ! autovideosink";
+            control2.pipeline = pp;
+            compare(spyPipeline2.count, 1);
+            compare(control2.pipeline, pp);
+            compare(player2.error, MediaPlayer.NoError);
+        }
     }
 }