ARM: NEON: fix overflow in h264 16x16 planar pred

Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago · 78f318be59
parent 5f3b8314a4
commit 78f318be59
1 changed files with 2 additions and 2 deletions
--- a/libavcodec/arm/h264pred_neon.S
+++ b/libavcodec/arm/h264pred_neon.S
@ -131,8 +131,8 @@ function ff_pred16x16_plane_neon, export=1
        vadd.i16        d5,  d6,  d7
        vpadd.i16       d4,  d4,  d5
        vpadd.i16       d4,  d4,  d4
-        vshl.i16        d5,  d4,  #2
-        vaddl.s16       q2,  d4,  d5
+        vshll.s16       q3,  d4,  #2
+        vaddw.s16       q2,  q3,  d4
        vrshrn.s32      d4,  q2,  #6
        mov             r3,  #0
        vtrn.16         d4,  d5