Make sure the audio/video availability information changes atomically.

So there's a consistent picture of the stream availability.

Change-Id: Id7ea166353c0151fcc11105a1e233e9fe8df9cc6
Reviewed-by: Dmytro Poplavskiy <dmytro.poplavskiy@nokia.com>

1 files changed, 8 insertions, 4 deletions

diff --git a/src/plugins/gstreamer/mediaplayer/qgstreamerplayersession.cpp b/src/plugins/gstreamer/mediaplayer/qgstreamerplayersession.cpp
index ed395feb0..7f48738cb 100644
--- a/src/plugins/gstreamer/mediaplayer/qgstreamerplayersession.cpp
+++ b/src/plugins/gstreamer/mediaplayer/qgstreamerplayersession.cpp
@@ -1384,12 +1384,16 @@ void QGstreamerPlayerSession::getStreamsInfo()
     }
 
 
-    if (haveAudio != m_audioAvailable) {
-        m_audioAvailable = haveAudio;
+    bool emitAudioChanged = (haveAudio != m_audioAvailable);
+    bool emitVideoChanged = (haveVideo != m_videoAvailable);
+
+    m_audioAvailable = haveAudio;
+    m_videoAvailable = haveVideo;
+
+    if (emitAudioChanged) {
         emit audioAvailableChanged(m_audioAvailable);
     }
-    if (haveVideo != m_videoAvailable) {
-        m_videoAvailable = haveVideo;
+    if (emitVideoChanged) {
         emit videoAvailableChanged(m_videoAvailable);
     }