Add a timer reporting a change in the playback position

Fixes: QTBUG-95576
Pick-to: 6.2 6.2.0
Change-Id: I1b3cdd1d473f04687f33f75502c80ce548aaba51
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

2 files changed, 12 insertions, 0 deletions

diff --git a/src/multimedia/platform/windows/player/mfplayersession.cpp b/src/multimedia/platform/windows/player/mfplayersession.cpp
index 8fbf05ee6..aeeb7c792 100644
--- a/src/multimedia/platform/windows/player/mfplayersession.cpp
+++ b/src/multimedia/platform/windows/player/mfplayersession.cpp
@@ -89,9 +89,15 @@ MFPlayerSession::MFPlayerSession(MFPlayerControl *playerControl)
     , m_audioSampleGrabber(0)
     , m_audioSampleGrabberNode(0)
     , m_videoProbeMFT(0)
+
 {
     QObject::connect(this, SIGNAL(sessionEvent(IMFMediaEvent*)), this, SLOT(handleSessionEvent(IMFMediaEvent*)));
 
+    m_signalPositionChangeTimer.setInterval(100);
+    m_signalPositionChangeTimer.callOnTimeout([this](){
+        positionChanged(position());
+    });
+
     m_pendingState = NoPending;
     ZeroMemory(&m_state, sizeof(m_state));
     m_state.command = CmdStop;
@@ -1617,6 +1623,7 @@ void MFPlayerSession::handleSessionEvent(IMFMediaEvent *sessionEvent)
 //        if (m_playerService->videoWindowControl()) {
 //            m_playerService->videoWindowControl()->applyImageControls();
 //        }
+        m_signalPositionChangeTimer.start();
         break;
     case MESessionStopped:
         if (m_status != QMediaPlayer::EndOfMedia) {
@@ -1628,10 +1635,12 @@ void MFPlayerSession::handleSessionEvent(IMFMediaEvent *sessionEvent)
                 changeStatus(QMediaPlayer::LoadedMedia);
         }
         updatePendingCommands(CmdStop);
+        m_signalPositionChangeTimer.stop();
         break;
     case MESessionPaused:
         m_position = position() * 10000;
         updatePendingCommands(CmdPause);
+        m_signalPositionChangeTimer.stop();
         break;
     case MEReconnectStart:
 #ifdef DEBUG_MEDIAFOUNDATION
diff --git a/src/multimedia/platform/windows/player/mfplayersession_p.h b/src/multimedia/platform/windows/player/mfplayersession_p.h
index bc7504d05..3aafedb86 100644
--- a/src/multimedia/platform/windows/player/mfplayersession_p.h
+++ b/src/multimedia/platform/windows/player/mfplayersession_p.h
@@ -64,6 +64,7 @@
 #include <QtMultimedia/qaudioformat.h>
 #include <QtMultimedia/qvideoframeformat.h>
 #include <qaudiodevice.h>
+#include <qtimer.h>
 #include "mfplayercontrol_p.h"
 
 QT_BEGIN_NAMESPACE
@@ -266,6 +267,8 @@ private:
     void insertColorConverter(IMFTopology *topology, TOPOID outputNodeId);
     // ### Below can be used to monitor the video channel. Functionality currently unused.
     MFTransform *m_videoProbeMFT;
+
+    QTimer m_signalPositionChangeTimer;
 };