deinterlace: Instead of confusing crashes later, just error out immediately if mappin...

This probably still crashes but at least we get some hint about what goes
wrong instead of random behaviour later.

diff --git a/gst/deinterlace/gstdeinterlace.c b/gst/deinterlace/gstdeinterlace.c
index 987c4ed..e4e1654 100644 (file)
--- a/gst/deinterlace/gstdeinterlace.c
+++ b/gst/deinterlace/gstdeinterlace.c
@@ -744,7 +744,11 @@ gst_video_frame_new_and_map (GstVideoInfo * vinfo, GstBuffer * buffer,
     GstMapFlags flags)
 {
   GstVideoFrame *frame = g_malloc0 (sizeof (GstVideoFrame));
-  gst_video_frame_map (frame, vinfo, buffer, flags);
+  if (!gst_video_frame_map (frame, vinfo, buffer, flags)) {
+    g_free (frame);
+    g_return_val_if_reached (NULL);
+    return NULL;
+  }
   return frame;
 }