Improve stopmotion widget (show thumbs of previous frames)

[kdenlive] / src / blackmagic / capture.cpp

diff --git a/src/blackmagic/capture.cpp b/src/blackmagic/capture.cpp
index 825231f0f756c71ba90f79b4bf426493bb65c978..e93c51ea4b67db795f7ee7783684d70f96cc4ed6 100644 (file)
--- a/src/blackmagic/capture.cpp
+++ b/src/blackmagic/capture.cpp
@@ -846,12 +846,12 @@ void CaptureHandler::captureFrame(const QString &fname)
 
 void CaptureHandler::showOverlay(QImage img, bool transparent)
 {
-    previewView->showOverlay(img, transparent);
+    if (previewView) previewView->showOverlay(img, transparent);
 }
 
 void CaptureHandler::hideOverlay()
 {
-    previewView->hideOverlay();
+    if (previewView) previewView->hideOverlay();
 }
 
 void CaptureHandler::stopPreview()