decomb: oops, fix overread when height is mod 4

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6994 b64f7644-9d1e-0410-96f1-a4d463321fa5

1 files changed, 1 insertions, 1 deletions

diff --git a/libhb/decomb.c b/libhb/decomb.c
index 0c8ea0529..ff1d566fa 100644
--- a/libhb/decomb.c
+++ b/libhb/decomb.c
@@ -2094,7 +2094,7 @@ static int hb_decomb_init( hb_filter_object_t * filter,
                  */
                 thread_args->segment_height[pp] =
                     (hb_image_height(init->pix_fmt, init->geometry.height, pp) -
-                    thread_args->segment_start[pp] + 3) & ~1;
+                    thread_args->segment_start[pp] + 3) & ~3;
             } else {
                 thread_args->segment_height[pp] = pv->segment_height[pp];
             }