diff --git a/src/plugins/directshow/player/directshowiosource.cpp b/src/plugins/directshow/player/directshowiosource.cpp
index ee2ea869..9ed3aa22 100644
--- a/src/plugins/directshow/player/directshowiosource.cpp
+++ b/src/plugins/directshow/player/directshowiosource.cpp
@@ -628,7 +628,7 @@ bool DirectShowRcSource::open(const QUrl &url)
     qDebug("qrc file %s", qPrintable(m_file.fileName()));
 
     if (m_file.open(QIODevice::ReadOnly)) {
-        qDebug("Size %d", m_file.size());
+        qDebug("Size %d", int(m_file.size()));
         qDebug("Sequential %d", int(m_file.isSequential()));
 
         setDevice(&m_file);
diff --git a/src/plugins/directshow/player/directshowmediatypelist.cpp b/src/plugins/directshow/player/directshowmediatypelist.cpp
index c503580c..75a12c40 100644
--- a/src/plugins/directshow/player/directshowmediatypelist.cpp
+++ b/src/plugins/directshow/player/directshowmediatypelist.cpp
@@ -198,7 +198,7 @@ HRESULT DirectShowMediaTypeList::nextMediaType(
         if (fetchedCount)
             *fetchedCount = boundedCount;
 
-        return boundedCount == count ? S_OK : S_FALSE;
+        return boundedCount == int(count) ? S_OK : S_FALSE;
     }
 }
 
diff --git a/src/plugins/directshow/player/videosurfacefilter.cpp b/src/plugins/directshow/player/videosurfacefilter.cpp
index 13438857..d6e48d86 100644
--- a/src/plugins/directshow/player/videosurfacefilter.cpp
+++ b/src/plugins/directshow/player/videosurfacefilter.cpp
@@ -550,19 +550,20 @@ HRESULT VideoSurfaceFilter::cloneMediaType(int token, int index, IEnumMediaTypes
 
 void VideoSurfaceFilter::customEvent(QEvent *event)
 {
-    if (event->type() == StartSurface) {
+    const int type = event->type();
+    if (type == StartSurface) {
         QMutexLocker locker(&m_mutex);
 
         m_startResult = start();
 
         m_wait.wakeAll();
-    } else if (event->type() == StopSurface) {
+    } else if (type == StopSurface) {
         QMutexLocker locker(&m_mutex);
 
         stop();
 
         m_wait.wakeAll();
-    } else if (event->type() == FlushSurface) {
+    } else if (type == FlushSurface) {
         QMutexLocker locker(&m_mutex);
 
         flush();