deinterlace: Instead of confusing crashes later, just error out immediately if mapping a video frame fails

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

1 files changed, 5 insertions, 1 deletions

diff --git a/gst/deinterlace/gstdeinterlace.c b/gst/deinterlace/gstdeinterlace.c
index 987c4eda8..e4e16542f 100644
--- 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;
 }