diff --git a/libavcodec/ppc/hevcdsp.c b/libavcodec/ppc/hevcdsp.c
index dcae43305a6785ca3b5663e37ff2b1a77951f08e..c1d562a4094aac1f911ae870f2559c596dbc78bb 100644
--- a/libavcodec/ppc/hevcdsp.c
+++ b/libavcodec/ppc/hevcdsp.c
@@ -58,7 +58,13 @@ static av_always_inline void transform4x4(vec_s16 src_01, vec_s16 src_23,
     e1 = vec_msums(src_02, trans4[2], zero);
     o1 = vec_msums(src_13, trans4[3], zero);
 
-    add = vec_sl(vec_splat_s32(1), vec_splat_u32(shift - 1));
+    switch(shift) {
+    case  7: add = vec_sl(vec_splat_s32(1), vec_splat_u32( 7 - 1)); break;
+    case 10: add = vec_sl(vec_splat_s32(1), vec_splat_u32(10 - 1)); break;
+    case 12: add = vec_sl(vec_splat_s32(1), vec_splat_u32(12 - 1)); break;
+    default: abort();
+    }
+
     e0 = vec_add(e0, add);
     e1 = vec_add(e1, add);
 
@@ -72,7 +78,14 @@ static av_always_inline void scale(vec_s32 res[4], vec_s16 res_packed[2],
                                    const int shift)
 {
     int i;
-    vec_u32 v_shift = vec_splat_u32(shift);
+    vec_u32 v_shift;
+
+    switch(shift) {
+    case  7: v_shift = vec_splat_u32(7) ; break;
+    case 10: v_shift = vec_splat_u32(10); break;
+    case 12: v_shift = vec_splat_u32(12); break;
+    default: abort();
+    }
 
     for (i = 0; i < 4; i++)
         res[i] = vec_sra(res[i], v_shift);