@@ -, +, @@ 
 gst-libs/gst/video/video-blend.c | 1 +
 1 file changed, 1 insertion(+)
--- a/gst-libs/gst/video/video-blend.c	
+++ a/gst-libs/gst/video/video-blend.c	
@@ -354,6 +354,7 @@ gst_video_blend (GstVideoFrame * dest,
       blender (tmpdestline[j + 1], alpha, tmpsrcline[j + 1], tmpdestline[j + 1]); \
       blender (tmpdestline[j + 2], alpha, tmpsrcline[j + 2], tmpdestline[j + 2]); \
       blender (tmpdestline[j + 3], alpha, tmpsrcline[j + 3], tmpdestline[j + 3]); \
+      tmpdestline[j] = alpha;							  \
     }                                                                             \
   } while(0)
 