vp9: clamp final zero MV if find_ref_mvs() found no suitable candidates.

This may actually result in a non-zero MV. Fixes ticket 4583. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago · 138581c41a
parent deed77ffee
commit 138581c41a
1 changed files with 1 additions and 0 deletions
--- a/libavcodec/vp9.c
+++ b/libavcodec/vp9.c
@ -1273,6 +1273,7 @@ static void find_ref_mvs(VP9Context *s,
    }

    AV_ZERO32(pmv);
+    clamp_mv(pmv, pmv, s);
 #undef INVALID_MV
 #undef RETURN_MV
 #undef RETURN_SCALE_MV