On 11/9/2022 7:31 PM, Thierry Foucu wrote:
---
libavcodec/motion_est.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/motion_est.c b/libavcodec/motion_est.c
index d17ffe42b4..95978d95dd 100644
--- a/libavcodec/motion_est.c
+++ b/libavcodec/motion_est.c
@@ -1571,7 +1571,7 @@ void ff_estimate_b_frame_motion(MpegEncContext * s,
type= CANDIDATE_MB_TYPE_BACKWARD_I;
}
- score= ((unsigned)(score*score + 128*256))>>16;
+ score= ((uint64_t)(score)*(uint64_t)(score) + 128*256)>>16;
Is it not enough just doing
score= ((unsigned)score*score + 128*256)>>16;
If not, then use uint64_t, but like the above, you should only need to
cast score once.
c->mc_mb_var_sum_temp += score;
s->mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
}
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