optflow_refine_sse4.c: Fix signed integer overflow
diff --git a/av1/common/x86/optflow_refine_sse4.c b/av1/common/x86/optflow_refine_sse4.c
index 0d315d9..514387b 100644
--- a/av1/common/x86/optflow_refine_sse4.c
+++ b/av1/common/x86/optflow_refine_sse4.c
@@ -1137,17 +1137,17 @@
int *vx1, int *vy1) {
int64_t su2, suv, sv2, suw, svw;
if (block_num == 0) {
- su2 = _mm_extract_epi32(u2, 0) + _mm_extract_epi32(u2, 1);
- sv2 = _mm_extract_epi32(v2, 0) + _mm_extract_epi32(v2, 1);
- suv = _mm_extract_epi32(uv, 0) + _mm_extract_epi32(uv, 1);
- suw = _mm_extract_epi32(uw, 0) + _mm_extract_epi32(uw, 1);
- svw = _mm_extract_epi32(vw, 0) + _mm_extract_epi32(vw, 1);
+ su2 = (int64_t)_mm_extract_epi32(u2, 0) + _mm_extract_epi32(u2, 1);
+ sv2 = (int64_t)_mm_extract_epi32(v2, 0) + _mm_extract_epi32(v2, 1);
+ suv = (int64_t)_mm_extract_epi32(uv, 0) + _mm_extract_epi32(uv, 1);
+ suw = (int64_t)_mm_extract_epi32(uw, 0) + _mm_extract_epi32(uw, 1);
+ svw = (int64_t)_mm_extract_epi32(vw, 0) + _mm_extract_epi32(vw, 1);
} else {
- su2 = _mm_extract_epi32(u2, 2) + _mm_extract_epi32(u2, 3);
- sv2 = _mm_extract_epi32(v2, 2) + _mm_extract_epi32(v2, 3);
- suv = _mm_extract_epi32(uv, 2) + _mm_extract_epi32(uv, 3);
- suw = _mm_extract_epi32(uw, 2) + _mm_extract_epi32(uw, 3);
- svw = _mm_extract_epi32(vw, 2) + _mm_extract_epi32(vw, 3);
+ su2 = (int64_t)_mm_extract_epi32(u2, 2) + _mm_extract_epi32(u2, 3);
+ sv2 = (int64_t)_mm_extract_epi32(v2, 2) + _mm_extract_epi32(v2, 3);
+ suv = (int64_t)_mm_extract_epi32(uv, 2) + _mm_extract_epi32(uv, 3);
+ suw = (int64_t)_mm_extract_epi32(uw, 2) + _mm_extract_epi32(uw, 3);
+ svw = (int64_t)_mm_extract_epi32(vw, 2) + _mm_extract_epi32(vw, 3);
}
calc_mv_process(su2, sv2, suv, suw, svw, d0, d1, bits, rls_alpha, vx0, vy0,
