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, 14 insertions, 0 deletions

diff --git a/tests/auto/integration/qmediaplayerbackend/tst_qmediaplayerbackend.cpp b/tests/auto/integration/qmediaplayerbackend/tst_qmediaplayerbackend.cpp
index c27e956c7..acc5138d7 100644
--- a/tests/auto/integration/qmediaplayerbackend/tst_qmediaplayerbackend.cpp
+++ b/tests/auto/integration/qmediaplayerbackend/tst_qmediaplayerbackend.cpp
@@ -78,6 +78,7 @@ private slots:
     void playerStateAtEOS();
     void playFromBuffer();
     void audioVideoAvailable();
+    void isSeekable();
 
 private:
     QUrl selectVideoFile(const QStringList& mediaCandidates);
@@ -1108,6 +1109,19 @@ void tst_QMediaPlayerBackend::audioVideoAvailable()
     QCOMPARE(hasAudioSpy.count(), 2);
 }
 
+void tst_QMediaPlayerBackend::isSeekable()
+{
+    if (localVideoFile.isEmpty())
+        QSKIP("No supported video file");
+
+    TestVideoSink surface(false);
+    QMediaPlayer player;
+    player.setVideoOutput(&surface);
+    QVERIFY(!player.isSeekable());
+    player.setSource(localVideoFile);
+    QTRY_VERIFY(player.isSeekable());
+}
+
 QTEST_MAIN(tst_QMediaPlayerBackend)
 #include "tst_qmediaplayerbackend.moc"