From a2fa1889a69f55ad9f1971eb8ff9c638c0470ebf Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Wed, 10 Dec 2014 13:26:46 +0100
Subject: [PATCH] avfilter/vf_perspective: add av_assert0() to help gcc see
 that there are no uninitialized variables

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 libavfilter/vf_perspective.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavfilter/vf_perspective.c b/libavfilter/vf_perspective.c
index bf06d02f46..bebe37f936 100644
--- a/libavfilter/vf_perspective.c
+++ b/libavfilter/vf_perspective.c
@@ -19,6 +19,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "libavutil/avassert.h"
 #include "libavutil/eval.h"
 #include "libavutil/imgutils.h"
 #include "libavutil/pixdesc.h"
@@ -202,6 +203,8 @@ static int config_input(AVFilterLink *inlink)
         x8 = t1 * t2 * (ref[0][1] * ref[1][0] - ref[0][0] * ref[1][1]) +
              t0 * t3 * (ref[2][0] * ref[3][1] - ref[2][1] * ref[3][0]);
         break;
+    default:
+        av_assert0(0);
     }
 
     for (y = 0; y < h; y++){